{Ru(CO)x}-core complexes with selected azoles: Synthesis, X-ray structure, spectroscopy, DFT analysis and evaluation of cytotoxic activity against human cancer cells

*EP003699221B1* (19) (11) EP 3 699 221 B1 EUROPEAN PATENT SPECIFICATION (12) (45) Date of publication and mention (51) International Patent Classification (IPC): C08H 8/00 (2010.01) of the grant of the patent: 29.10.2025 Bulletin 2025/44 (52) Cooperative Patent Classification (CPC): (C-Sets available) C08H 8/00 (21) Application number: 19213417.9 (Cont.) (22) Date of filing: 04.12.2019 (54) RESIN COMPOSITION AND MOLDING METHOD THEREOF HARZZUSAMMENSETZUNG UND FORMVERFAHREN DAVON COMPOSITION DE RÉSINE ET SON PROCÉDÉ DE MOULAGE (84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 22.02.2019 JP 2019030378 (43) Date of publication of application: 26.08.2020 Bulletin 2020/35 (73) Proprietor: Hemicellulose Ltd. Kawasaki-shi, Kangawa 212‑0032 (JP) (72) Inventors: • MORITA, Seiji Tokyo, 103‑0027 (JP) • NASUKAWA, Jin Tokyo, 103‑0027 (JP) • SATO, Kenichi Tokyo, 103‑0027 (JP) • KUSUMA WARDHANI, Laksmi Tokyo, 103‑0027 (JP) (74) Representative: Fabry, Bernd IP2 Patentanwalts GmbH Schlossstrasse 523 41238 Mönchengladbach (DE) (56) References cited: EP 3 699 221 B1 JP-A‑ 2011 143 561 • MIKI TSUNEHISA ET AL: "Preparation of Wood Plastic Composite Sheets by Lateral Extrusion of Solid Woods Using their Fluidity", PROCEDIA ENGINEERING, ELSEVIER BV, NL, vol. 81, 15 October 2014 (2014‑10‑15), pages 580 - 585, XP029078227, ISSN: 1877‑7058, DOI: 10.1016/ J.PROENG.2014.10.043 • ACHA B A ET AL: "COMPOSITES FROM PMMA MODIFIED THERMOSETS AND CHEMICALLY TREATED WOODFLOUR", POLYMER ENGINEERING AND SCIENCE, BROOKFIELD CENTER, US, vol. 43, no. 5, 1 May 2003 (2003‑05‑01), pages 999 - 1010, XP001192618, ISSN: 0032‑3888, DOI: 10.1002/PEN.10084 • THREEPOPNATKUL P ET AL: "Effect of surface treatment on performance of pineapple leaf fiberpolycarbonate composites", COMPOSITES:PART B, ELSEVIER, AMSTERDAM, NL, vol. 40, no. 7, 1 October 2009 (2009‑10‑01), pages 628 - 632, XP026521575, ISSN: 1359‑8368, [retrieved on 20090418], DOI: 10.1016/J.COMPOSITESB.2009.04.008 • WU SHU-PING ET AL: "Fabrication of carboxymethyl chitosan-hemicellulose resin for adsorptive removal of heavy metals from wastewater", CHINESE CHEMICAL LETTERS, ELSEVIER, AMSTERDAM, NL, vol. 28, no. 3, 18 November 2016 (2016‑11‑18), pages 625 - 632, XP029926840, ISSN: 1001‑8417, DOI: 10.1016/ J.CCLET.2016.11.015 Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. Notice of opposition shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). Processed by Luminess, 75001 PARIS (FR) (Cont. next page) EP 3 699 221 B1 • STACK KAREN ET AL: "Complex formation and stability of colloidal wood resin pitch suspensions with hemicellulose polymers", COLLOIDS AND SURFACES A: PHYSIOCHEMICAL AND ENGINEERING ASPECTS, ELSEVIER, AMSTERDAM, NL, vol. 441, 4 September 2013 (2013‑09‑04), pages 101 108, XP028793728, ISSN: 0927‑7757, DOI: 10.1016/J.COLSURFA.2013.08.057 • XINWEN PENG ET AL: "Glycidyl methacrylate derivatized xylan-rich hemicelluloses: synthesis and characterizations", CELLULOSE, KLUWER ACADEMIC PUBLISHERS (DORDRECHT), NL, vol. 19, no. 4, 11 May 2012 (2012‑05‑11), pages 1361 - 1372, XP035070659, ISSN: 1572‑882X, DOI: 10.1007/S10570‑012‑9718‑0 • KONG WEIQING ET AL: "Graphene Oxide/ Polyacrylamide/Aluminum Ion Cross-Linked Carboxymethyl Hemicellulose Nanocomposite Hydrogels with Very Tough and Elastic Properties", CHEMISTRY - AN ASIAN JOURNAL, vol. 11, no. 11, 25 May 2016 (2016‑05‑25), pages 1697 - 1704, XP55929720, ISSN: 1861‑4728, DOI: 10.1002/asia.201600138 • STEPAN AGNES M. ET AL: "Nanofibrillated cellulose reinforced acetylated arabinoxylan films", COMPOSITES SCIENCE AND TECHNOLOGY, vol. 98, 1 June 2014 (2014‑06‑01), AMSTERDAM, NL, pages 72 - 78, XP55929737, ISSN: 0266‑3538, DOI: 10.1016/ j.compscitech.2014.04.010 • KONG WEIQING ET AL: "Graphene Oxide/ Polyacrylamide/Aluminum Ion Cross-Linked Carboxymethyl Hemicellulose Nanocomposite Hydrogels with Very Tough and Elastic Properties", CHEMISTRY - AN ASIAN JOURNAL, vol. 11, no. 11, 25 May 2016 (2016‑05‑25), Hoboken, USA, pages 1697 - 1704, XP055929720, ISSN: 1861‑4728, DOI: 10.1002/asia.201600138 • STEPAN AGNES M. ET AL: "Nanofibrillated cellulose reinforced acetylated arabinoxylan films", COMPOSITES SCIENCE AND TECHNOLOGY, vol. 98, 1 June 2014 (2014‑06‑01), AMSTERDAM, NL, pages 72 - 78, XP055929737, ISSN: 0266‑3538, DOI: 10.1016/ j.compscitech.2014.04.010 • FUNDADOR NOREEN GRACE V. ET AL: "Xylan esters as bio-based nucleating agents for poly (llactic acid)", POLYMER DEGRADATION AND STABILITY, vol. 98, no. 5, 1 May 2013 (2013‑05‑01), GB, pages 1064 - 1071, XP93140750, ISSN: 0141‑3910, DOI: 10.1016/ j.polymdegradstab.2013.01.010 • FUNDADOR NOREEN GRACE V. ET AL: "Syntheses and characterization of xylan esters", POLYMER, vol. 53, no. 18, 1 August 2012 (2012‑08‑01), AMSTERDAM, NL, pages 3885 3893, XP93140760, ISSN: 0032‑3861, DOI: 10.1016/j.polymer.2012.06.038 • GABBAY S. M. ET AL: "X-Ray and stereochemical studies on xylan diacetate", BIOPOLYMERS, vol. 11, no. 1, 1 January 1972 (1972‑01‑01), Hoboken, USA, pages 79 - 94, XP93139355, ISSN: 0006‑3525, DOI: 10.1002/ bip.1972.360110106 (52) Cooperative Patent Classification (CPC): (Cont.) C-Sets C08H 8/00, C08L 23/06; C08H 8/00, C08L 23/12; C08H 8/00, C08L 33/12; C08H 8/00, C08L 69/00 2 EP 3 699 221 B1 Description TECHNICAL FIELD 5 [0001] The present invention relates to a resin composition and injection molding method thereof. In particular, the present invention relates to a resin composition for molding having biodegradability and molding method thereof. BACKGROUND ART 10 15 [0002] Chemically synthesized plastics, such as PP, PE, PET, PC, PMMA, PS, COP, and COC, have been used as resin materials for molding. Although these chemically synthesized plastics produce carbon dioxide and pose environmental pollution problems, they are currently being used with such problems are nearly neglected when synthesized plastics are used. [0003] Under such circumstances, resin compositions have been developed so that they do not produce carbon dioxide during preparation thereof and are made of a component of a natural material, such as a plant. Also, biodegradable resin compositions have been developed so that they are biodegraded into low-molecular compounds not to have adverse effects on the environment by microorganisms. Examples of such a plant-derived, biodegradable resin composition include polylactic acid (PLA). A molded product made of polylactic acid is disclosed in Japanese Unexamined Patent Application Publication No. 2016‑179694. 20 SUMMARY OF INVENTION 25 30 35 [0004] PLA is made from corn or sugarcane and therefore produces less CO2. However, it requires many preparation processes and high preparation cost. Also, PLA is a material that biodegrades only at high temperatures of 50 degrees Celsius or more. For this reason, PLA cannot exhibit biodegradability when disposed of in the natural environment. Also, PLA is less heat resistant and therefore a molded product made of PLA, for example, a drink container such as a cup, is deformed when hot water is poured thereinto. Also, a molded product made of PLA has less strength and therefore is cracked, damaged, or broken when it falls or is bent or pressed. When producing a molded product from PLA by injection molding, a longer molding cycle time is required, or a molding failure is more likely to occur due to poor fluidity of PLA. These problems may lead to unsuccessful mass production of molded products. In this way, conventional resin compositions including PLA is problematic in terms of heat resistance, hardness, cost-effectiveness, and biodegradability. [0005] The present inventors conducted intensive research and, as a result, here provide a resin composition for molding having excellent heat resistance, hardness, cost-effectiveness, and biodegradability by using an amorphous resin material component extracted from plant-derived wood. The present inventors also provide a molding method of this resin composition. [0006] A resin composition for molding disclosed herein includes a first resin that is derived from a plant and has the following structural formula (Chemical Formula 1). 40 45 50 [0007] The resin composition for molding preferably includes a second resin having the following structural formula (Chemical Formula 2). 55 3 EP 3 699 221 B1 5 10 15 20 25 30 35 40 45 [0008] The resin composition for molding may include a second resin including one of polycarbonate (PC), cyclo olefin polymer (COP), cyclo olefin copolymer (COC), polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), polystyrene (PS), polylactic acid (PLA), ABS resin (ABS), vinyl chloride (PVC), vinylidene chloride (PVDC), vinyl acetate (PVAC), polymethylpentene (PMP), polybutene (PB), hydroxybenzoic acid (HBP), polyetherimide (PEI), polyacetal (POM), polyphenylene ether (PPE), polyphenylene oxide (PPO), polyphenylene sulfide (PPS), polyurethane (PUR), ionomer resin (IO), fluorocarbon resin (FR), tetrafluoroethylene (PTFE), polycyclohexylenedimethylene terephthalate (PCT), polyethylene naphthalate (PEN), polyarylate (PAR), polyacrylonitrile (PAN), polyallylsulfone (PASF), polyamide (PA), polyvinyl alcohol (PVA), polymethacrylstyrene (MS), butadiene resin (BDR), polybutylene terephthalate (PBT), polyester carbonate (PPC), polybutylene succinate (PBS), norbornene resin (NB), polyamide (nylon) (PA), Teflon®, FRP, PHA, PHB, PHBH, CA, polyimide (PI), polyamideimide (PAI), polysulfone (PSF), polyethersulfone (PES), polyetheretherketone (PEEK), liquid crystal polymer (LCP), polychlorotrifluoroethylene (PCTFE), silicone resin (SI), epoxy resin (EP), and polylactic acid (PLA), or two or more of these substances. In this case, the resin composition preferably includes 30 to 60 percent by weight of the first resin and 40 to 70 percent by weight of the second resin. [0009] Wood powder or wood pellets, bamboo powder or bamboo pellets, or grass powder or grass pellets obtained by freezing and crushing wood, bamboo, or grass; or paper powder or paper pellets obtained by freezing and crushing paper may be kneaded with the first resin, or may be kneaded with the first and second resins. As these materials are very inexpensive, the cost of resin pellets and the price of molded products are expected to be reduced. When wood powder or wood pellets, bamboo powder or bamboo pellets, grass powder or grass pellets, or paper powder or paper pellets is directly mixed with the second resin, the resin composition decreases in heat resistance, strength, and fluidity. On the other hand, by kneading those materials with the first resin, the resin composition improves in heat resistance, strength, and fluidity and obtains biodegradability. In this case, it is preferred to knead those materials with the 30 to 60 percent by weight of the first resin. [0010] A resin composition molding method disclosed herein includes a step of charging a resin composition into a resin injector with the resin composition solidified, a step of liquidizing the resin composition in the resin injector by heating and compressing the resin composition, a step of injecting the liquidized resin composition from the resin injector into a mold by pressing the resin composition, and a step of cooling and solidifying the resin composition in the mold and extracting a molded product from the mold. [0011] The resin composition molding method preferably further includes a step of introducing a gas into the liquidized resin composition and dispersing the gas in the resin composition. [0012] The resin composition disclosed herein has excellent heat resistance, hardness, cost-effectiveness, and biodegradability. BRIEF DESCRIPTION OF DRAWINGS [0013] 50 FIGS. 1A to 1C are concept drawings that show production of an injection-molded product using an injection molding machine and a mold (without a gas); and FIGS. 2A to 2C are concept drawings that show production of an injection-molded product using an injection molding machine and a mold (with a gas). DESCRIPTION 55 Hemicellulose and Hemicellulose Derivatives [0014] A resin composition disclosed herein includes a plant-derived resin component. This resin component is one of 4 EP 3 699 221 B1 5 10 15 20 the main components of a tree. That is, a tree includes three main components: cellulose, hemicellulose, and lignin. A first resin disclosed herein includes a hemicellulose as a component. A hemicellulose is amorphous and has very high uniformity. A melted liquid hemicellulose has high fluidity and is suitable as a material for injection molding. Cellulose is a fibrous material having high crystallinity and is not suitable as a main component of a material for injection molding. Lignin is a material having high crystallinity and less fluidity and therefore is not suitable as a main component of a material for injection molding. A hemicellulose alone is an amorphous material, and a liquidized hemicellulose can uniformly flow through a cylinder during injection molding. [0015] Hemicelluloses include complex polysaccharides, such as mannan, glucan, xylan, and xyloglucan. The hemicellulose of the present embodiment may be any of these substances and may contain a small amount of cellulose or a small amount of lignin. Among hemicelluloses, xylan is preferably used. A typical hemicellulose has a molecular weight of (weight average molecular weight Mw) 1,000 to 100,000. If a hemicellulose having a molecular weight of 30,000 to 100,000 is injection-molded, a molded product having good strength is obtained. [0016] A hemicellulose has good biodegradability. A hemicellulose biodegrades at a higher rate than cellulose and lignin and favorably biodegrades at low to high temperatures, for example, at a low temperature of 5 degrees Celsius. A hemicellulose is biodegraded by microorganisms even at ordinary temperature and becomes water and carbon dioxide after three months. For example, when buried in soil, a hemicellulose is biodegraded by microorganisms in soil. A hemicellulose is also biodegraded by microorganisms in seawater. A hemicellulose is a material in harmony with the environment. [0017] A hemicellulose is a component of wood and therefore chemical synthesis is not required to obtain a hemicellulose. That is, a hemicellulose does not produce carbon dioxide, which occurs when chemically synthesizing a raw material, and plant-derived wood consumes carbon dioxide by photosynthesis. Use of a hemicellulose as the first resin of the composition for injection molding reduces occurrence of carbon dioxide. [0018] The basic structure of a hemicellulose as the first resin has the following structural formula (Chemical Formula 1). Any hemicellulose having the following structure in its molecular structure can be used. 25 30 35 40 45 50 55 [0019] R1 and R2 each represent a substituent group. R1 and R2 are each hydrogen, nitrogen, an alkyl group, an acetyl group, a hydroxy group, an acyl group, an aldehyde group, an amino group, an imino group, an aryl group, a phosphonyl group, a propenyl group, a propanyl group, an acetonyl group, a carbonyl group, a carboxyl group, a cyano group, an azo group, an azi group, a thiol group, a sulfo group, a nitro group, a vinyl group, an allyl group, a cycloalkyl group, a phenyl group, a naphthyl group, an aralkyl group, a benzyl group, a Schiff group, an alkylene group, an amyl group, an acetamidomethyl group, an adamantyl group, an adamantyloxycarbonyl group, an allyloxycarbonyl group, a tertbutoxycarbonyl group, a benzyloxymethyl group, a biphenylisopropyloxycarbonyl group, a benzoyl group, a benzyloxycarbonyl group, a cyanoethyl group, a cyclohexyl group, a carboxymethyl group, a cyclopentadienyl group, a pentamethylcyclopentadienyl group, a cyclohexyl group, glucose, a hexyl group, an isobutyl group, an isopropyl group, a mesityl group, a trimethylphenyl group, a methoxymethyl group, a mesitylenesulfonyl group, a mesyl group, a nosyl group, an octadecylsilyl group, a pivaloyl group, a methoxybenzyl group, a methoxyphenyl group, a propyl group, an ethoxymethyl group, a trimethylsilyl group, a trimethylsilylethoxymethyl group, a siamyl group, a tert-butyl group, a tert-butyldimethylsilyl group, a tert-butyldiphenylsilyl group, a tert-butyldimethylsilyl group, a triethylsilyl group, a tetrahydropyranyl group, a triisopropylsilyl group, a trimethylsilyl group, a tolyl group, a tosyl group, a triisopropylbenzenesulfonyl group, a trityl group, a trichloroethoxycarbonyl group, a benzyloxycarbonyl group, a methylene group, a valeryl group, a methoxy group, an acetamide group, a trimethylammonium group, a diazo group, a hydrocarbon group, or the like, but are not limited thereto. R1 and R2 may be each a substituent group having any of these substances in the structure. R1 and R2 may be each fluorine, bromine, chlorine, iodine, or the like, or may be each a substituent group having any of these substances in the 5 EP 3 699 221 B1 5 10 15 structure. R1 and R2 may each be an ionized substituent group, such as a cation or anion, that forms an ionic liquid structure, or may each be a substituent group having such a substance in the structure. R1 and R2 may be different substituent groups. [0020] A hemicellulose having such a basic structure provides the resin composition with biodegradability, as well as heat resistance, strength, fluidity, and transparency. Such a resin composition can be injection-molded, and an injectionmolded product has biodegradability, as well as good heat resistance, strength, fluidity, and transparency. n is an integer greater than or equal to 2. As will be described later, a hemicellulose component extracted from a wood chip includes hydrogen as R1 and R2 and is called a "hemicellulose." A hemicellulose has high hydrophilicity and therefore easily captures moisture. A molded product including a hemicellulose, which has high water absorbency, may be unpreferable, since the size, volume, or weight thereof is more likely to vary with time, depending on the application. Also, such a molded product decreases in strength, transparency, or heat resistance, depending on the application. To solve these problems associated with water absorbency, it is preferred to change R in the molecule of the hemicellulose to a substituent group as description above, that is, a substituent group, such as an acetyl group, an acetonyl group, or an ionized substituent group. Hemicelluloses including various substituent groups other than hydrogen are called "hemicellulose derivatives." A typical hemicellulose derivative includes acetyl groups as R1 and R2. Preparation of Hemicellulose and Hemicellulose Derivatives 20 25 30 35 40 45 50 55 [0021] Fragments obtained by crushing wood into small sizes are called wood chips. When these wood chips are put into an aqueous solution containing butanol and heated, this solution is separated into the butanol/lignin phase and the water/hemicellulose phase. Cellulose precipitates as a solid. By removing water from the water/hemicellulose phase, hemicellulose powder can be obtained. This hemicellulose powder has a basic structure represented by a structural formula in which R1 and R2 are hydrogen. This hemicellulose powder has high hydrophilicity and therefore easily captures moisture. A molded product including this hemicellulose powder having high water absorbency is more likely to change in size, volume, or weight with time, as well as may decrease in strength, transparency, or heat resistance. [0022] For this reason, a hemicellulose derivative is prepared by changing R1 and R2 in the structural formula of the hemicellulose powder from hydrogen to acetyl groups so that an acetylation reaction occurs in the hemicellulose powder. A hemicellulose derivative may be prepared by changing R1 and R2 in the structural formula of the hemicellulose powder from hydrogen to substituent groups, such as acetonyl groups, propenyl groups, or carboxyl groups, rather than acetyl groups so that a corresponding chemical reaction occurs in the hemicellulose powder. The preparation of such a hemicellulose derivative was performed using a conventional sugar derivative preparation technology. This sugar derivative preparation technology is a technology proposed by Yamagata University, Nippon Kayaku Co., Ltd., HORIBA STEC, Co., Ltd., Kobe Natural Products Chemical Co., Ltd., or Hayashibara Co., Ltd. Resin Composition for Molding [0023] The hemicellulose or hemicellulose derivative, which is the first resin, serves as a resin composition or resin pellets for injection molding on its own. On the other hand, the hemicellulose or hemicellulose derivative, which is the first resin, may be mixed with a second resin. In this case, a resin composition for injection molding is obtained by mixing the powdery hemicellulose or hemicellulose derivative with powder, pellets, or the like of the second resin and charging the mixture into an extruder/kneader. [0024] The first resin and second resin are melted and kneaded in the extruder/kneader, and the kneaded resin composition is extruded in the form of a tube from the nozzle of the extruder/kneader. The tubular resin is cut into resin pellets made of the resin composition using a pelletizer. The resin pellets are resin strips having a diameter of 0.2 to 3 mm and a length of 0.2 to 5 mm. [0025] The second resin is polycarbonate (PC), cyclo olefin polymer (COP), cyclo olefin copolymer (COC), polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), polystyrene (PS), polylactic acid (PLA), ABS resin (ABS), vinyl chloride (PVC), vinylidene chloride (PVDC), vinyl acetate (PVAC), polymethylpentene (PMP), polybutene (PB), hydroxybenzoic acid (HBP), polyetherimide (PEI), polyacetal (POM), polyphenylene ether (PPE), polyphenylene oxide (PPO), polyphenylene sulfide (PPS), polyurethane (PUR), ionomer resin (IO), fluorocarbon resin (FR), tetrafluoroethylene (PTFE), polycyclohexylenedimethylene terephthalate (PCT), polyethylene naphthalate (PEN), polyarylate (PAR), polyacrylonitrile (PAN), polyallylsulfone (PASF), polyamide (PA), polyvinyl alcohol (PVA), polymethacrylstyrene (MS), butadiene resin (BDR), polybutylene terephthalate (PBT), polyester carbonate (PPC), polybutylene succinate (PBS), norbornene resin (NB), polyamide (nylon) (PA), Teflon®, FRP, PHA, PHB, PHBH, CA, polyimide (PI), polyamideimide (PAI), polysulfone (PSF), polyethersulfone (PES), polyetheretherketone (PEEK), liquid crystal polymer (LCP), polychlorotrifluoroethylene (PCTFE), silicone resin (SI), epoxy resin (EP), or the like, but is not limited to these resins. Or, the second resin may be two or more of these resins. Wood powder or wood pellets, bamboo powder or bamboo pellets, or grass powder or grass pellets obtained by freezing and crushing wood, bamboo, or grass, or paper powder or paper pellets 6 EP 3 699 221 B1 5 obtained by freezing and crushing paper may be kneaded with the first resin, or may be kneaded with the first and second resins. These materials are very inexpensive and therefore the kneaded resin pellets can be produced at lower cost and are expected to be sold at lower price. If the wood powder or wood pellets, bamboo powder or bamboo pellets, grass powder or grass pellets, or paper powder or paper pellets is directly mixed with the second resin, the heat resistance, strength, and fluidity decreases. On the other hand, by kneading those materials with the first resin, the resin composition improves in heat resistance, strength, and fluidity and obtains biodegradability. [0026] A resin having the following structural formula (Chemical Formula 2) may be mixed as the second resin. Examples of such a resin include polymethylmethacrylate (PMMA, acrylic). 10 15 20 25 30 35 40 45 50 55 [0027] In this formula, R3 represents a substituent group and is hydrogen, nitrogen, an alkyl group, an acetyl group, a hydroxy group, an acyl group, an aldehyde group, an amino group, an imino group, an aryl group, a phosphonyl group, a propenyl group, a propanyl group, an acetonyl group, a carbonyl group, a carboxyl group, a cyano group, an azo group, an azi group, a thiol group, a sulfo group, a nitro group, a vinyl group, an allyl group, a cycloalkyl group, a phenyl group, a naphthyl group, an aralkyl group, a benzyl group, a Schiff group, an alkylene group, an amyl group, an acetamidomethyl group, an adamantyl group, an adamantyloxycarbonyl group, an allyloxycarbonyl group, a tert-butoxycarbonyl group, a benzyloxymethyl group, a biphenylisopropyloxycarbonyl group, a benzoyl group, a benzyloxycarbonyl group, a cyanoethyl group, a cyclohexyl group, a carboxymethyl group, a cyclopentadienyl group, a pentamethylcyclopentadienyl group, a cyclohexyl group, glucose, a hexyl group, an isobutyl group, an isopropyl group, a mesityl group, a trimethylphenyl group, a methoxymethyl group, a mesitylenesulfonyl group, a mesyl group, a nosyl group, an octadecylsilyl group, a pivaloyl group, a methoxybenzyl group, a methoxyphenyl group, a propyl group, an ethoxymethyl group, a trimethylsilyl group, a trimethylsilylethoxymethyl group, a siamyl group, a tert-butyl group, a tert-butyldimethylsilyl group, a tertbutyldiphenylsilyl group, a tert-butyldimethylsilyl group, a triethylsilyl group, a tetrahydropyranyl group, a triisopropylsilyl group, a trimethylsilyl group, a tolyl group, a tosyl group, a triisopropylbenzenesulfonyl group, a trityl group, a trichloroethoxycarbonyl group, a benzyloxycarbonyl group, a methylene group, a valeryl group, a methoxy group, an acetamide group, a trimethylammonium group, a diazo group, a hydrocarbon group, or the like, but is not limited thereto. R3 may be fluorine, bromine, chlorine, iodine, or the like, or may be a substituent group having any of these substances in the structure. R3 may also be an ionized substituent group, such as a cation or anion, that forms an ionic liquid structure. R3 may also be a substituent group having any of the above substances in the structure. [0028] A and Q each independently represent a single bond or a linking group. Examples of Q which is a linking group include groups, such as an alkylene group, ‑O‑, ‑NH2‑, and an carbonyl group. Examples of A which is a linking group include groups, such as an alkylene group, ‑O-, and -C(=O)O-. n is an integer equal to or greater than 2, multiple R3 in the above structural formula may be the same or different, multiple Q may also be the same or different, and A and Q may be the same or different. The second resin has a molecular weight of (weight average molecular weight Mw) 1,000 to 10,000,000. If the second resin has a molecular weight of 30,000 to 1,000,000, an injection-molded product having good strength is obtained. [0029] The resin pellets made of the resin composition including the first and second resins are charged into an injection molding machine, and a molded product having a shape corresponding to a mold is obtained. When the molded product made of the resin composition of the present embodiment enters soil or seawater, the first resin, which is mixed with the second resin in the resin composition at a molecular level, is biodegraded by microorganisms and thus the second resin is also biodegraded at a molecular level. In this way, biodegradation proceeds. In other words, the first resin performs a function of providing the second resin with biodegradability, which had never been predicted until this invention even by the present inventors. This is a finding that those skilled in the art involved in plastics, bioplastics, or biodegradable plastics cannot easily conceive of. And this is a finding that the experiments in Examples of the present invention demonstrated. The present inventors believe that when the molecules of the first resin are inserted between the molecules of the second resin, biodegradation of the first resin facilitates biodegradation of the molecules of the second resin. 7 EP 3 699 221 B1 5 10 [0030] The present inventors also found that the resin composition including the first and second resins mixed at a molecular level has higher heat resistance, strength, fluidity, transcription properties, and optical properties than the resin composition including the first resin alone and had never predicted this finding. This is a finding that those skilled in the art involved in plastics, bioplastics, or biodegradable plastics cannot easily conceive of. And this is a finding that the experiments in Examples of the present invention demonstrated. The present inventors believe that the resin composition became a material that is stable even at high temperatures, stronger, and optically uniform, due to the complicated intertwining between the molecules of the first resin and the molecules of the second resin and thus improved in total light transmittance and birefringence. The present inventors also believe that the second resin functioned as a solvent when the first resin melted and thus the resin composition decreased in viscosity and improved in fluidity and transcription properties. Molded Product by Light Molding First Embodiment 15 20 [0031] In a first embodiment, resin pellets were made of a resin composition including 100 percent by weight of a hemicellulose derivative. The hemicellulose derivative included acetyl groups as R1 and R2 in the above structural formula. The hemicellulose derivative had a molecular weight (weight average molecular weight Mw) of 100,000. Samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from the resin pellets by light molding. As a comparative example, samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from resin pellets including 100 percent by weight of PLA (polylactic acid) (having a molecular weight (weight average molecular weight Mw) of 100,000). These samples were evaluated for heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate. The evaluation results are shown in Table 1. 25 [Table 1] EVALUATION ITEM TARGET VALUE 30 35 50 COMPARATIVE EMBODIMENT HEMICELLULOSE PLA MEASUR EMENT METHOD HEAT-RESISTANT TEMPERATURE(°C) 120°C OR MORE 180 58 ISO75 TENSILE STRENGTH(MPa) 8 0 OR MORE 90 63 ISO527 BENDING STRENGTH(MPa) 150 OR MORE 158 106 ISO178 FLUIDITY(g/10min) 15 OR MORE 19 3.0 ISO1133 TRANSCRIPTION PROPERTIES(nm) 100nm OR LESS 65 500,000nm TOTAL LIGHT TRANSMITTANCE(%) 9 2 % OR MORE 93 90 ISO13468 BIREFRINGENCE PHASE DIFFERENCE(nm) 30nm OR LESS 25 100 Dr.Shenck METAL IMPURITY CONCENTRATION 200ppb OR LESS 20ppb 100ppm ELEMENTAL ANALYSIS BIODEGRADATION RATE(%) 90% OR MORE 100 0% ISO19679 40 45 FIRST EMBODIMENT SEM JIS K 7210 27°C SEAWATER 120DAYS 55 EVALUATION ITEM [0032] The samples including 100 percent by weight of the hemicellulose derivative exceeded the target values of heat- 8 EP 3 699 221 B1 5 resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate. Also, the samples including 100 percent by weight of the hemicellulose derivative were better in all the evaluation items than the samples including 100 percent by weight of PLA (polylactic acid). Note that in relation with seventh and eighth embodiments, resin pellets were made of a resin composition including 100 percent by weight of the hemicellulose derivative. Also, a hemicellulose derivative including acetyl groups as R1 and R2 is referred to as Example 10. Second Embodiment 10 15 20 25 30 35 [0033] Next, each of resin compositions including a hemicellulose derivative and PMMA at different ratios was melted and kneaded in the extruder/kneader, and 3 kg of resin pellets was made of the kneaded resin composition. The hemicellulose derivative included acetyl groups as R1 and R2 in the above structural formula. PMMA had a molecular weight (weight average molecular weight Mw) of 120,000. [0034] In Example 1, resin pellets were made of a resin composition including 10 percent by weight of the hemicellulose derivative and 90 percent by weight of PMMA. [0035] In Example 2, resin pellets were made of a resin composition including 20 percent by weight of the hemicellulose derivative and 80 percent by weight of PMMA. [0036] In Example 3, resin pellets were made of a resin composition including 30 percent by weight of the hemicellulose derivative and 70 percent by weight of PMMA. [0037] In Example 4, resin pellets were made of a resin composition including 40 percent by weight of the hemicellulose derivative and 60 percent by weight of PMMA. [0038] In Example 5, resin pellets were made of a resin composition including 50 percent by weight of the hemicellulose derivative and 50 percent by weight of PMMA. [0039] In Example 6, resin pellets were made of a resin composition including 60 percent by weight of the hemicellulose derivative and 40 percent by weight of PMMA. [0040] In Example 7, resin pellets were made of a resin composition including 70 percent by weight of the hemicellulose derivative and 30 percent by weight of PMMA. [0041] In Example 8, resin pellets were made of a resin composition including 80 percent by weight of the hemicellulose derivative and 20 percent by weight of PMMA. [0042] In Example 9, resin pellets were made of a resin composition including 90 percent by weight of the hemicellulose derivative and 10 percent by weight of PMMA. [0043] Samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from the nine types of resin pellets by light molding. These samples were evaluated for heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate. The evaluation results are shown in Table 2. Although the measurement methods are not described in Table 2, those are the same as the measurement methods in Table 1. The same applies to Tables 3 to 7 below. 40 45 50 55 9 15 OR MORE 100nm OR LESS 92% OR MORE 30nm OR LESS 200ppb OR LESS 90% OR MORE FLUIDITY(g/10min) TRANSCRIPTION PROPERTIES(nm) TOTAL LIGHT TRANSMITTANCE(%) BIREFRINGENCE PHASE DIFFERENCE(nm) METAL IMPURITY CONCENTRATION BIODEGRADATION RATE(%) 150 OR MORE 80 OR MORE TENSILE STRENGTH(MPa) 91 92 100ppb 28 93 90 17 152 83 20 95 60 20 160 94 201 70 30 3 95 80ppb 25 100ppb 28 93 90 16 151 81 126 80 20 2 100 50ppb 10 96 50 25 180 98 250 60 40 4 100 30ppb 10 96 50 25 180 98 250 50 50 5 98 30ppb 20 95 55 21 165 94 205 40 60 6 30 70 7 95 30ppb 28 93 60 18 155 90 180 10 121 90 10 1 95 20ppb 28 92 70 17 155 90 170 20 80 8 5 BENDING STRENGTH(MPa) 120°C OR MORE HEAT-RESISTANT TEMPERATURE(°C) 55 - 50 PMMA 45 - 40 HEMICELLULOSE 35 SECOND EMBODIMENT 20 TARGET VALUE 15 EVALUATION ITEM 30 [Table 2] 98 20ppb 29 92 70 17 153 88 170 10 90 9 EP 3 699 221 B1 10 EP 3 699 221 B1 5 [0044] The samples including PMMA as the second resin exceeded the target values of heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate, regardless the ratio of PMMA. In particular, the samples including 40% to 70 percent by weight of PMMA (60% to 30 percent by weight of the hemicellulose derivative) were excellent in heatresistance temperature, tensile strength, bending strength, and biodegradation rate and showed better results in many evaluation items than even the samples including 100 percent by weight of the hemicellulose derivative. Third Embodiment 10 15 20 25 30 35 [0045] Next, each of resin compositions including a hemicellulose derivative and PC at different ratios was melted and kneaded in the extruder/kneader, and 3 kg of resin pellets was made of the kneaded resin composition. The hemicellulose derivative included acetyl groups as R1 and R2 in the above structural formula. PC had a molecular weight (weight average molecular weight Mw) of PC of 140,000. [0046] In Example 11, resin pellets were made of a resin composition including 10 percent by weight of the hemicellulose derivative and 90 percent by weight of PC. [0047] In Example 12, resin pellets were made of a resin composition including 20 percent by weight of the hemicellulose derivative and 80 percent by weight of PC. [0048] In Example 13, resin pellets were made of a resin composition including 30 percent by weight of the hemicellulose derivative and 70 percent by weight of PC. [0049] In Example 14, resin pellets were made of a resin composition including 40 percent by weight of the hemicellulose derivative and 60 percent by weight of PC. [0050] In Example 15, resin pellets were made of a resin composition including 50 percent by weight of the hemicellulose derivative and 50 percent by weight of PC. [0051] In Example 16, resin pellets were made of a resin composition including 60 percent by weight of the hemicellulose derivative and 40 percent by weight of PC. [0052] In Example 17, resin pellets were made of a resin composition including 70 percent by weight of the hemicellulose derivative and 30 percent by weight of PC. [0053] In Example 18, resin pellets were made of a resin composition including 80 percent by weight of the hemicellulose derivative and 20 percent by weight of PC. [0054] In Example 19, resin pellets were made of a resin composition including 90 percent by weight of the hemicellulose derivative and 10 percent by weight of PC. Note that Example 20 is an unassigned number. [0055] Samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from the nine types of resin pellets by light molding. These samples were evaluated for heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate. The evaluation results are shown in Table 3. 40 45 50 55 11 120°C OR MORE 80 OR MORE 150 OR MORE 15 OR MORE 100 nm nm OR LESS 92% OR MORE 30 nm OR LESS 200ppb OR LESS 90% OR MORE HEAT-RESISTANT TEMPERATURE TENSILE STRENGTH BENDING STRENGTH FLUIDITY TRANSCRIPTION PROPERTIES TOTAL LIGHT TRANSMITTANCE BIREFRINGENCE PHASE DIFFERENCE METAL IMPURITY CONCENTRATION BIODEGRADATION RATE 55 - 50 PC 45 - 35 HEMICELLULOSE 40 92 93 150ppb 30 92 85 16 151 84 25 94 50 19 158 95 210 70 96 90ppb 25 160ppb 30 92 85 15 150 82 129 80 30 13 100 80ppb 20 95 40 24 170 99 260 60 40 14 100 80ppb 20 95 40 24 170 99 260 50 50 15 96 90ppb 22 94 45 22 164 94 240 40 60 16 30 70 17 95 60ppb 29 93 50 19 151 91 190 10 126 90 20 12 95 60ppb 29 92 60 16 151 91 175 20 80 18 5 10 11 THIRD EMBODIMENT 20 TARGET VALUE 15 EVALUATION ITEM 30 [Table 3] 94 30ppb 29 92 60 16 151 89 175 10 90 19 EP 3 699 221 B1 12 EP 3 699 221 B1 5 [0056] The samples including PC as the second resin exceeded the target values of heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate, regardless the ratio of PC. In particular, the samples including 40% to 70 percent by weight of PC (60% to 30 percent by weight of the hemicellulose derivative) were excellent in the heat-resistance temperature, tensile strength, bending strength, and biodegradation rate and showed better results in many evaluation items than even the samples including 100 percent by weight of the hemicellulose derivative. Fourth Embodiment 10 15 20 25 30 35 [0057] Next, each of resin compositions including a hemicellulose derivative and PE at different ratios was melted and kneaded in the extruder/kneader, and 3 kg of resin pellets was made of the kneaded resin composition. The hemicellulose derivative included acetyl groups as R1 and R2 in the above structural formula. PE had a molecular weight (weight average molecular weight Mw) of PE of 160,000. [0058] In Example 21, resin pellets were made of a resin composition including 10 percent by weight of the hemicellulose derivative and 90 percent by weight of PE. [0059] In Example 22, resin pellets were made of a resin composition including 20 percent by weight of the hemicellulose derivative and 80 percent by weight of PE. [0060] In Example 23, resin pellets were made of a resin composition including 30 percent by weight of the hemicellulose derivative and 70 percent by weight of PE. [0061] In Example 24, resin pellets were made of a resin composition including 40 percent by weight of the hemicellulose derivative and 60 percent by weight of PE. [0062] In Example 25, resin pellets were made of a resin composition including 50 percent by weight of the hemicellulose derivative and 50 percent by weight of PE. [0063] In Example 26, resin pellets were made of a resin composition including 60 percent by weight of the hemicellulose derivative and 40 percent by weight of PE. [0064] In Example 27, resin pellets were made of a resin composition including 70 percent by weight of the hemicellulose derivative and 30 percent by weight of PE. [0065] In Example 28, resin pellets were made of a resin composition including 80 percent by weight of the hemicellulose derivative and 20 percent by weight of PE. [0066] In Example 29, resin pellets were made of a resin composition including 90 percent by weight of the hemicellulose derivative and 10 percent by weight of PE. Note that Example 30 is an unassigned number. [0067] Samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from the nine types of resin pellets by light molding. These samples were evaluated for heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate. The evaluation results are shown in Table 4. 40 45 50 55 13 100nm OR LESS 9 2 % OR MORE 30 nm OR LESS 200ppb OR LESS 90% OR MORE TOTAL LIGHT TRANSMITTANCE BIREFRINGENCE PHASE DIFFERENCE METAL IMPURITY CONCENTRATION BIODEGRADATION RATE 15 OR MORE FLUIDITY TRANSCRIPTION PROPERTIES 150 OR MORE BENDING STRENGTH 90 800ppb - 5 500 17 151 81 91 800ppb - 7 450 18 152 83 121 70 30 23 95 100ppb - 20 100 20 155 85 140 25 120 80 20 22 100 90ppb - 50 90 26 160 86 150 60 40 24 100 90ppb - 60 90 26 160 86 150 50 50 25 95 80ppb - 70 80 22 154 88 145 40 60 26 30 70 27 95 90ppb - 75 100 19 150 85 130 10 80 OR MORE 120°C OR MORE HEAT-RESISTANT TEMPERATURE 90 10 21 95 80ppb 1000 80 100 18 150 85 130 20 80 28 5 TENSILE STRENGTH - 55 PE 50 - 45 HEMICELLULOSE 40 FOURTH EMBODIMENT 20 TARGET VALUE 15 EVALUATION ITEM 30 [Table 4] 97 80ppb 1000 85 100 17 150 84 130 10 90 29 EP 3 699 221 B1 35 14 EP 3 699 221 B1 5 10 15 20 25 30 35 [0068] The samples including PE as the second resin were poor in total light transmittance and birefringence phase difference and therefore cannot be applied to optical components, or molded products that are required to be transparent. On the other hand, the samples including 70% or less by weight of PE exceeded the target values of heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, impurity concentration, and biodegradation rate. In particular, the samples including 40% to 70 percent by weight of PE (60% to 30 percent by weight of the hemicellulose derivative) were excellent in heat-resistance temperature, tensile strength, bending strength, and biodegradation rate and showed better results in fluidity than even the samples including 100 percent by weight of the hemicellulose derivative. Fifth Embodiment [0069] Next, each of resin compositions including a hemicellulose derivative and PP at different ratios was melted and kneaded in the extruder/kneader, and 3 kg of resin pellets was made of the kneaded resin composition. The hemicellulose derivative included acetyl groups as R1 and R2 in the above structural formula. PP had a molecular weight (weight average molecular weight Mw) of PP of 200,000. [0070] In Example 31, resin pellets were made of a resin composition including 10 percent by weight of the hemicellulose derivative and 90 percent by weight of PP. [0071] In Example 32, resin pellets were made of a resin composition including 20 percent by weight of the hemicellulose derivative and 80 percent by weight of PP. [0072] In Example 33, resin pellets were made of a resin composition including 30 percent by weight of the hemicellulose derivative and 70 percent by weight of PP. [0073] In Example 34, resin pellets were made of a resin composition including 40 percent by weight of the hemicellulose derivative and 60 percent by weight of PP. [0074] In Example 35, resin pellets were made of a resin composition including 50 percent by weight of the hemicellulose derivative and 50 percent by weight of PP. [0075] In Example 36, resin pellets were made of a resin composition including 60 percent by weight of the hemicellulose derivative and 40 percent by weight of PP. [0076] In Example 37, resin pellets were made of a resin composition including 70 percent by weight of the hemicellulose derivative and 30 percent by weight of PP. [0077] In Example 38, resin pellets were made of a resin composition including 80 percent by weight of the hemicellulose derivative and 20 percent by weight of PP. [0078] In Example 39, resin pellets were made of a resin composition including 90 percent by weight of the hemicellulose derivative and 10 percent by weight of PP. Note that Example 40 is an unassigned number. [0079] Samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from the nine types of resin pellets by light molding. These samples were evaluated for heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate. The evaluation results are shown in Table 5. 40 45 50 55 15 120°C OR MORE 80 OR MORE 150 OR MORE 15 OR MORE 100nm OR LESS 92 % UK MORE 30 nm OR LESS 200ppb OR LESS 90% OR MORE HEAT-RESISTANT TEMPERATURE TENSILE STRENGTH BENDING STRENGTH FLUIDITY TRANSCRIPTION PROPERTIES TOTAL LIGHT MITTANCE TRANS BIREFRIGENCE PHASE DIFFERENCE METAL IMPURITY CONCENTRATION BIODEGRADATION RATE 55 - 50 PP 45 - 40 HEMICELLULOSE 35 - 92 700ppb - 96 100ppb 20 98 20 160 88 210 70 30 33 - 100 90ppb 40 90 25 165 91 250 60 40 34 - 100 90ppb 50 90 25 165 91 250 50 50 35 - 97 90ppb 60 96 22 160 92 210 40 60 36 - 65 100 18 150 85 190 30 70 37 97 90ppb 10 92 - 5 500 18 150 80 128 80 25 700ppb 5 500 18 151 80 122 90 20 32 - 97 80ppb 70 100 17 150 85 160 20 80 38 5 10 31 FIFTH EMBODIMENT 20 TARGET VALUE 15 EVALUATION ITEM 30 [Table 5] - 98 80ppb 75 95 18 150 84 160 10 90 39 EP 3 699 221 B1 16 EP 3 699 221 B1 5 [0080] The samples including PP as the second resin were poor in total light transmittance and birefringence phase difference and therefore cannot be applied to optical components, or molded products that are required to be transparent. On the other hand, the samples including 70% or less by weight of PP exceeded the target values of heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, impurity concentration, and biodegradation rate. In particular, the samples including 40% to 70 percent by weight of PP were excellent in heat-resistant temperature, tensile strength, bending strength, and biodegradation rate and showed better results in many evaluation items than even the samples including 100 percent by weight of the hemicellulose derivative. Sixth Embodiment 10 15 20 25 30 35 [0081] Next, each of resin compositions including a hemicellulose derivative and PETat different ratios was melted and kneaded in the extruder/kneader, and 3 kg of resin pellets was made of the kneaded resin composition. The hemicellulose derivative included acetyl groups as R1 and R2 in the above structural formula. PET had a molecular weight (weight average molecular weight Mw) of 300,000. [0082] In Example 41, resin pellets were made of a resin composition including 10 percent by weight of the hemicellulose derivative and 90 percent by weight of PET. [0083] In Example 42, resin pellets were made of a resin composition including 20 percent by weight of the hemicellulose derivative and 80 percent by weight of PET. [0084] In Example 43, resin pellets were made of a resin composition including 30 percent by weight of the hemicellulose derivative and 70 percent by weight of PET. [0085] In Example 44, resin pellets were made of a resin composition including 40 percent by weight of the hemicellulose derivative and 60 percent by weight of PET. [0086] In Example 45, resin pellets were made of a resin composition including 50 percent by weight of the hemicellulose derivative and 50 percent by weight of PET. [0087] In Example 46, resin pellets were made of a resin composition including 60 percent by weight of the hemicellulose derivative and 40 percent by weight of PET. [0088] In Example 47, resin pellets were made of a resin composition including 70 percent by weight of the hemicellulose derivative and 30 percent by weight of PET. [0089] In Example 48, resin pellets were made of a resin composition including 80 percent by weight of the hemicellulose derivative and 20 percent by weight of PET. [0090] In Example 49, resin pellets were made of a resin composition including 90 percent by weight of the hemicellulose derivative and 10 percent by weight of PET. Note that Example 50 is an unassigned number. [0091] Samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from the nine types of resin pellets by light molding. These samples were evaluated for heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate. The evaluation results are shown in Table 6. 40 45 50 55 17 120°C OR MORE 80 OR MORE 150 OR MORE 15 OR MORE 100nm OR LESS 92% OR MORE 30nm OR LESS 200ppb OR LESS 90% OR MORE TENSILE STRENGTH(MPa) BENDING STRENGTH(MPa) FLUIDITY(g/10min) TRANSCRIPTION PROPERTIES(nm) TOTAL LIGHT TRANSMITTANCE(%) BIREFRINGENCE PHASE DIFFERENCE(nm) METAL IMPURITY CONCENTRATION BIODEGRADATION RATE(%) 55 HEAT-RESISTANT TEMPERATURE(°C) 50 - 45 PMMA 35 - 91 92 100ppb 27 94 89 19 153 84 127 80 96 75ppb 19 96 59 22 161 95 200 70 30 53 100 40ppb 9 97 48 27 182 99 252 60 40 54 100 25ppb 9 97 48 27 182 99 252 50 50 55 99 25ppb 18 96 54 23 167 95 206 40 60 56 95 27ppb 27 93 59 19 155 91 182 30 70 57 27 92 69 18 155 90 171 20 80 58 95 20ppb 10 100ppb 27 94 89 18 152 82 122 90 20 52 98 20ppb 28 92 69 18 152 89 171 10 90 59 5 10 51 25 HEMICELLULOSE 40 SIXTH EMBODIMENT 20 TARGET VALUE 15 EVALUATION ITEM 30 [Table 6] 100 20ppb 24 93 64 20 159 91 180 0 100 60 EP 3 699 221 B1 18 EP 3 699 221 B1 5 [0092] The samples including 80% or more by weight of PET as the second resin were poor in birefringence phase difference and therefore cannot be applied to optical components. On the other hand, the samples including 70% or less by weight of PET exceeded the target values of heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, impurity concentration, and biodegradation rate. In particular, the samples including 40% to 70 percent by weight of PET were excellent in heat-resistant temperature, tensile strength, bending strength, and biodegradation rate and showed better results in many evaluation items than even the samples including 100 percent by weight of the hemicellulose derivative. Seventh Embodiment 10 15 [0093] Next, each of resin compositions including a hemicellulose derivative and PMMA at different ratios was melted and kneaded in the extruder/kneader, and 3 kg of resin pellets was made of the kneaded resin composition. The hemicellulose derivative included acetonyl groups as R1 and R2. The acetonyl groups are described below. The hemicellulose derivative had a molecular weight (weight average molecular weight Mw) of 100,000. PMMA had a molecular weight (weight average molecular weight Mw) of 120,000. 20 25 30 35 40 45 50 [0094] In Example 51, resin pellets were made of a resin composition including 10 percent by weight of the hemicellulose derivative and 90 percent by weight of PMMA. [0095] In Example 52, resin pellets were made of a resin composition including 20 percent by weight of the hemicellulose derivative and 80 percent by weight of PMMA. [0096] In Example 53, resin pellets were made of a resin composition including 30 percent by weight of the hemicellulose derivative and 70 percent by weight of PMMA. [0097] In Example 54, resin pellets were made of a resin composition including 40 percent by weight of the hemicellulose derivative and 60 percent by weight of PMMA. [0098] In Example 55, resin pellets were made of a resin composition including 50 percent by weight of the hemicellulose derivative and 50 percent by weight of PMMA. [0099] In Example 56, resin pellets were made of a resin composition including 60 percent by weight of the hemicellulose derivative and 40 percent by weight of PMMA. [0100] In Example 57, resin pellets were made of a resin composition including 70 percent by weight of the hemicellulose derivative and 30 percent by weight of PMMA. [0101] In Example 58, resin pellets were made of a resin composition including 80 percent by weight of the hemicellulose derivative and 20 percent by weight of PMMA. [0102] In Example 59, resin pellets were made of a resin composition including 90 percent by weight of the hemicellulose derivative and 10 percent by weight of PMMA. [0103] In Example 60, resin pellets were made of a resin composition including 100 percent by weight of the hemicellulose derivative including acetonyl groups as R1 and R2. [0104] Samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from the 10 types of resin pellets by light molding. These samples were evaluated for heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate. The evaluation results are shown in Table 7. 55 19 120°C OR MORE 80 OR MORE 150 OR MORE 15 OR MORE 100nm OR LESS 92% OR MORE 30nm OR LESS 200ppb OR LESS 90% OR MORE TENSILE STRENGTH(MPa) BENDING STRENGTH(MPa) FLUIDITY(g/10min) TRANSCRIPTION PROPERTIES(nm) TOTAL LIGHT TRANSMITTANCE(%) BIREFRINGENCE PHASE DIFFERENCE(nm) METAL IMPURITY CONCENTRATION BIODEGRADATION RATE(%) 55 HEAT-RESISTANT TEMPERATURE(°C) 50 - 45 PMMA 35 - 91 92 100ppb 27 94 89 19 153 84 127 80 96 75ppb 19 96 59 22 161 95 200 70 30 53 100 40ppb 9 97 48 27 182 99 252 60 40 54 100 25ppb 9 97 48 27 182 99 252 50 50 55 99 25ppb 18 96 54 23 167 95 206 40 60 56 95 27ppb 27 93 59 19 155 91 182 30 70 57 27 92 69 18 155 90 171 20 80 58 95 20ppb 10 100ppb 27 94 89 18 152 82 122 90 20 52 98 20ppb 28 92 69 18 152 89 171 10 90 59 5 10 51 25 HEMICELLULOSE 40 SEVENTH EMBODIMENT 20 TARGET VALUE 15 EVALUATION ITEM 30 [Table 7] 100 20ppb 24 93 64 20 159 91 180 0 100 60 EP 3 699 221 B1 20 EP 3 699 221 B1 5 [0105] While there are not large differences between the samples including 100 percent by weight of the hemicellulose derivative including acetyl groups as R1 and R2 and the sample including 100 percent by weight of the hemicellulose derivative including acetonyl groups as R1 and R2, the sample including 100 percent by weight of the hemicellulose derivative including acetonyl groups as R1 and R2 showed slightly better results. Also, the samples in Table 7 showed slightly better results in the respective evaluation items than those in Table 2 even if the ratio of PMMA is the same. Also, as in Table 2, the samples including 40% to 70 percent by weight of PMMA were excellent in heat-resistant temperature, tensile strength, bending strength, and biodegradation rate. Eighth Embodiment 10 15 20 25 30 35 [0106] Next, each of resin compositions including a hemicellulose derivative and PMMA at different ratios was melted and kneaded in the extruder/kneader, and 3 kg of resin pellets was made of the kneaded resin composition. The hemicellulose derivative included carboxyl groups (-COOH) as R1 and R2. The hemicellulose derivative had a molecular weight (weight average molecular weight Mw) of 100,000. PMMA had a molecular weight (weight average molecular weight Mw) of 120,000. [0107] In Example 61, resin pellets were made of a resin composition including 10 percent by weight of the hemicellulose derivative and 90 percent by weight of PMMA. [0108] In Example 62, resin pellets were made of a resin composition including 20 percent by weight of the hemicellulose derivative and 80 percent by weight of PMMA. [0109] In Example 63, resin pellets were made of a resin composition including 30 percent by weight of the hemicellulose derivative and 70 percent by weight of PMMA. [0110] In Example 64, resin pellets were made of a resin composition including 40 percent by weight of the hemicellulose derivative and 60 percent by weight of PMMA. [0111] In Example 65, resin pellets were made of a resin composition including 50 percent by weight of the hemicellulose derivative and 50 percent by weight of PMMA. [0112] In Example 66, resin pellets were made of a resin composition including 60 percent by weight of the hemicellulose derivative and 40 percent by weight of PMMA. [0113] In Example 67, resin pellets were made of a resin composition including 70 percent by weight of the hemicellulose derivative and 30 percent by weight of PMMA. [0114] In Example 68, resin pellets were made of a resin composition including 80 percent by weight of the hemicellulose derivative and 20 percent by weight of PMMA. [0115] In Example 69, resin pellets were made of a resin composition including 90 percent by weight of the hemicellulose derivative and 10 percent by weight of PMMA. [0116] In Example 70, resin pellets were made of a resin composition including 100 percent by weight of the hemicellulose derivative including carboxyl groups as R1 and R2. [0117] Samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from the 10 types of resin pellets by light molding. These samples were evaluated for heat-resistant temperature, tensile strength, bending strength, fluidity, transcription properties, total light transmittance, birefringence phase difference, impurity concentration, and biodegradation rate. The evaluation results are shown in Table 8. 40 45 50 55 21 120°C OR MORE 80 OR MORE 150 OR MORE 15 OR MORE 100nm OR LESS 92% OR MORE 30nm OR LESS 100ppb OR LESS 90% OR MORE TENSILE STRENGTH(MPa) BENDING STRENGTH(MPa) FLUIDITY(g/10min) TRANSCRIPTION PROPERTIES(nm) TOTAL LIGHT TRANSMITTANCE(%) BIREFRINGENCE PHASE DIFFERENCE(nm) METAL IMPURITY CONCENTRATION BIODEGRADATION RATE(%) 55 HEAT-RESISTANT TEMPERATURE(°C) 50 - 45 PMMA 35 - 91 92 100ppb 27 94 90 18 152 84 127 80 95 75ppb 19 96 58 22 161 94 200 70 30 63 100 40ppb 9 97 49 27 182 99 251 60 40 64 100 25ppb 9 97 49 27 183 99 251 50 50 65 99 25ppb 18 95 56 23 166 95 206 40 60 66 95 27ppb 27 93 59 19 155 91 182 30 70 67 27 92 69 18 155 90 171 20 80 68 95 20ppb 10 100ppb 27 94 90 18 151 82 121 90 20 62 97 20ppb 28 92 69 18 151 89 171 10 90 69 5 10 61 25 HEMICELLULOSE 40 EIGHTH EMBODIMENT 20 TARGET VALUE 15 EVALUATION ITEM 30 [Table 8] 100 20ppb 24 93 64 20 158 91 180 0 100 70 EP 3 699 221 B1 22 EP 3 699 221 B1 5 10 [0118] While there are not large differences between the samples including 100 percent by weight of the hemicellulose derivative including acetyl groups as R1 and R2 and the samples including 100 percent by weight of the hemicellulose derivative including carboxyl groups as R1 and R2, the samples including 100 percent by weight of the hemicellulose derivative including carboxyl groups as R1 and R2 showed slightly better results. Also, the samples in Table 8 showed slightly better results in the respective evaluation items than those in Table 2 even if the ratio of PMMA is the same. Also, as in Table 2, the samples including 40% to 70 percent by weight of PMMA were excellent in heat-resistant temperature, tensile strength, bending strength, and biodegradation rate. [0119] In summary, the samples including 100 percent by weight of the hemicellulose derivative including acetyl groups, the samples including 100 percent by weight of the hemicellulose derivative including acetonyl groups, and the samples including 100 percent by weight of the hemicellulose derivative including carboxyl groups showed better results in all the evaluation items than the conventional samples including 100 percent by weight of PLA. Also, the resin compositions including 30 to 60 percent by weight of the first resin, which is a hemicellulose derivative, and 40 to 70 percent by weight of the second resin are understood to have shown good results. Further, the resin compositions including 40 to 50 percent by weight of the first resin and 50 to 60 percent by weight of the second resin are understood to have shown better results. 15 Molded Products by Injection Molding (without Gas) Ninth Embodiment 20 25 [0120] Injection-molded products were produced from resin pellets made of the resin compositions including the first resin and second resin described in the first to eighth embodiments (Examples 1 to 70). [0121] FIGS. 1A to 1C are concept drawings that show production of an injection-molded product using an injection molding machine 10 and a mold 50, in which FIG. 1 A is a drawing that shows a state in which resin pellets RP made of a resin composition are being heated and liquidized in a resin injector; FIG. 1B is a drawing that shows a state in which the liquidized resin composition is being injected from the resin injector into a mold; and FIG. 1C is a drawing that shows a state in which the mold is being opened and a resin molded product is being extracted. Configuration of Injection Molding Machine 30 35 40 45 50 [0122] The injection molding machine 10 includes a hopper 11 into which the resin pellets RP made of the resin composition are charged, a cylinder 12 into which the resin pellets RP are charged from the hopper 11, a rotatable screw 13 disposed in the cylinder 12, and heaters 14 disposed outside the cylinder 12. The screw 13 can be moved by a driver 15 in the direction toward the mold and the opposite direction thereof. The liquidized resin composition is injected from an end nozzle 16 of the cylinder 12. [0123] The mold 50 includes a fixed mold 52 and a moving mold 54. When the fixed mold 52 and moving mold 54 closely contact each other, a cavity 56 is formed. The cavity 56 has a spool bush 55, which is a hole into which the liquidized resin composition is put. Molding Method Using Injection Molding Machine [0124] The resin pellets RP fall from the hopper 11 due to rotation of the screw 13 while being measured. The resin pellets RP are then melted (liquidized) by frictional heat caused by rotation and kneading of and by the screw 13 and the heat of the heaters 14. When the screw 13 is moved by the driver 15 in the direction toward the mold, the measured and liquidized resin composition is injected from the end nozzle 16 of the cylinder 12 to the cavity 56 through the spool bush 55 of the mold 50. The resin composition injected into the cavity 56 is cooled and solidified in the mold 50. Then, when the moving mold 54 is moved and the nozzle 16 of the injection molding machine 10 is released from the spool bush 55, a molded product MD is extracted. At this time, the molded product MD is extracted from the mold 50 due to self-fall or by an extractor (not shown). [0125] As in the first to eighth embodiments, samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were made of the molded product MD. The evaluation results of the samples are shown in Tables 9A (ninth embodiment part 1) to 9G (ninth embodiment part 7). Since these samples are molded products, the molding cycle time, molded product defect density, and molded product weight were newly added as evaluation items. On the other hand, the fluidity, birefringence phase difference, and impurity concentration were removed from the evaluation items. Note that with respect to the resin compositions, Examples of the first and second embodiments correspond to Examples of the ninth embodiment part 1, Examples of the third embodiment correspond to Examples of the ninth embodiment part 2, Examples of the following embodiments correspond to Examples of the following parts of the ninth embodiment, and finally Examples of the eighth embodiment correspond to Examples of the ninth embodiment part 7. 55 23 EP 3 699 221 B1 5 10 15 20 25 30 35 40 45 50 55 24 EP 3 699 221 B1 5 10 15 20 25 30 35 40 45 50 55 25 EP 3 699 221 B1 5 10 15 20 25 30 35 40 45 50 55 26 EP 3 699 221 B1 5 10 15 20 25 30 [0126] As is understood from a comparison between the first embodiment and Example 10 of the ninth embodiment, the samples including 100 percent by weight of the hemicellulose derivative including acetyl groups produced by light molding and the samples including 100 percent by weight of the hemicellulose derivative including acetyl groups produced by injection molding were the same in heat-resistant temperature, tensile strength, and the like. [0127] As shown in the ninth embodiment part 1, the resin compositions including the first and second resins showed good results in the molding cycle time, molded product defect density, and molded product weight, which relate to injection molding, compared to the conventional resin composition including 100 percent by weight of PLA. Also, the resin compositions including 30 to 60 t by weight of the first resin and 40 to 70 percent by weight of the second resin are understood to have shown good results. Further, the resin compositions including 40 to 50 percent by weight of the first resin and 50 to 60 percent by weight of the second resin are understood to have shown better results. These resin compositions including the first resin and second resin has high biodegradability, which solves environmental problems and ocean contamination problems, and injection-molded products can be easily produced from these resin compositions. Molded Products by Injection Molding (with Gas) 35 40 45 Tenth Embodiment [0128] Injection-molded products were produced from resin pellets made of the resin compositions including the first and second resins described in the first to eighth embodiments (Examples 1 to 70). Unlike in the ninth embodiment, in a tenth embodiment, an inert gas is supplied to at least one of the injection molding machine 10 and mold 50. [0129] FIGS. 2A to 2C are concept drawings that show production of an injection-molded product using an injection molding machine 10 and a mold 50, in which FIG. 2A is a drawing that shows a state in which resin pellets made of the resin composition are being heated and liquidized in a resin injector; FIG. 2B is a drawing that shows a state in which the liquidized resin composition is being injected from the resin injector to mold portions; and FIG. 2C is a drawing that shows a state in which the mold portions are being opened and a resin molded product is being extracted. Configuration of Injection Molding Machine 50 55 [0130] The same members as those of the injection molding machine 10 and mold 50 shown in FIGS. 1A to 1C are assigned the same reference signs. The differences between FIGS. 2A to 2C and FIGS. 1A to 1C will be described, and the same reference signs will not be described. A cylinder 12 is provided with a gas supply tube 18 connected to a pump PP. The mold 50 is provided a gas supply tube 58 to which the pump PP is connected. The pump PP supplies an inert gas or the like to the liquidized resin composition. Thus, a formed molded product is obtained. Note that the gas supply tube for supplying an inert gas or the like to the liquidized resin composition only has to be provided on at least one of the injection molding machine 10 and mold 50. [0131] Examples of the foaming gas include inert gases typified by noble gases, such as nitrogen, helium, and argon, carbon dioxide, which is easily dissolved in thermoplastic resins and shows good plasticizer effects, chlorofluorocarbons obtained by substituting fluorine for C1 to C5 saturated hydrocarbon or part thereof, and vapor of liquid, such as water or 27 EP 3 699 221 B1 alcohol. In the present embodiment, carbon dioxide was used as the foaming gas. Molding Method Using Injection Molding Machine 5 10 15 [0132] The following molding method is a method in which a gas is supplied to both the liquidized resin composition in the injection molding machine 10 and that in the mold 50. [0133] Resin pellets RP fall from a hopper 11 due to rotation of a screw 13 while being measured. The resin pellets RP are then melted (liquidized) by frictional heat caused by rotation and kneading of and by the screw 13 and the heat of heaters 14. The gas is introduced from the pump PP into the liquidized resin composition and dispersed in the liquid. When the screw 13 is moved by a driver 15 in the direction toward the mold, the gas-dispersed resin composition is injected from an end nozzle 16 of the cylinder 12 into a cavity 56 through a spool bush 55 of the mold 50. [0134] Subsequently, the gas is introduced from the pump PP into the liquidized resin composition in the cavity 56 and dispersed in the liquid. The gas-containing resin composition is then cooled and solidified in the mold 50. Then, when the moving mold 54 is moved and the nozzle 16 of the injection molding machine 10 is released from the spool bush 55, a molded product MD is extracted. At this time, the molded product MD is extracted from the mold 50 due to self-fall or by an extractor (not shown). [0135] As in the first to eighth embodiments, samples of a dumbbell piece, a strip piece, a disk substrate, a cup, and a flat plate were produced from the molded product MD. The evaluation results of the samples are shown in Tables 10A (tenth embodiment part 1) to 10G (tenth embodiment part 7). 20 25 30 35 40 45 50 55 28 EP 3 699 221 B1 5 10 15 20 25 30 35 40 45 50 55 29 EP 3 699 221 B1 5 10 15 20 25 30 35 40 45 50 55 30 EP 3 699 221 B1 5 10 15 20 25 30 35 40 45 50 55 [0136] As is understood from a comparison between Example 10 of the ninth embodiment and Example 10 of the tenth embodiment, the samples including 100 percent by weight of the hemicellulose derivative including acetyl groups produced by foam injection molding were better not only in the injection molding-related evaluation items, such as the molding cycle time, but also in the items, such as heat-resistant temperature and tensile strength, than the samples including 100 percent by weight of the hemicellulose derivative including acetyl groups produced by injection molding. Also, the samples including 30 to 60 t by weight of the first resin and 40 to 70 percent by weight of the second resin are understood to have shown good results. Further, samples including 40 to 50 percent by weight of the first resin and 50 to 60 percent by weight of the second resin are understood to have shown better results. [0137] Also, as is understood from a comparison between Tables of the ninth embodiment (parts 1 to 7) and Tables of the tenth embodiment (parts 1 to 7), all the samples including PMMA, PC, PE, PP, or PETas the second resin showed higher performance in the molding cycle time, molded product defect density, molded product weight, heat-resistant temperature, tensile strength, bending strength, transcription properties, total light transmittance, and biodegradation rate. From the results, it is particularly preferred to mold the resin composition according to the present embodiment using the foam injection molding method using a gas. [0138] While it has not been described as an embodiment, there is a technology that performs foam injection molding while supplying a foaming agent from the hopper along with resin pellets. It can be predicted that even if a foaming agent is supplied from the hopper, the resin composition of the present embodiment will show higher performance. Also, resin 31 EP 3 699 221 B1 pellets including a foaming agent may be supplied. Also, the foaming gas to be supplied into the resin pellets may be an inert gas typified by noble gases, such as nitrogen, helium, and argon, carbon dioxide, which is easily dissolved in thermoplastic resins and shows good plasticizer effects, a gas obtained by substituting fluorine for C1 to C5 saturated hydrocarbon or part thereof, or the like. 5 Claims 1. Resin pellets for molding comprising a first resin that is derived from a plant and a second resin; 10 wherein the first resin has the following structural formula: 15 20 25 wherein: when R1 and R2 are the same and represent an acetyl group n represents an integer equal to or greater than 2, 30 and the second resin is selected from polymethyl methacryrate (PMMA), polycarbonate (PC), polypropylene (PP), polyethylene (PE), or polyethylene terephthalate (PET), or when R1 and R2 are the same and represent an acetonyl group or a carboxyl group, n represents an integer equal to or greater than 2; the second resin is polymethyl methacryrate (PMMA), wherein the first resin is at least 10 percent and at most 90 percent by weight of the resin pellets, and the second resin is at most 90 percent and at least 10 percent by weight of the resin pellets. 35 2. The resin pellets for molding of Claim 1, wherein the resin pellets comprises 30 to 60 percent by weight of the first resin and 40 to 70 percent by weight of the second resin. 3. The resin pellets of Claim 2, wherein the resin pellets comprises 40 to 50 percent by weight of the first resin and 50 to 60 percent by weight of the second resin. 4. Resin pellets molding method comprising: 40 45 a step of charging the resin pellets of any one of Claims 1 to 3 into a resin injector with the resin pellets solidified; a step of liquidizing the resin pellets in the resin injector by heating and compressing the resin pellets; a step of injecting the liquidized resin pellets from the resin injector into a mold by pressing the resin pellets; and a step of cooling and solidifying the resin pellets in the mold and extracting a molded product from the mold. 50 5. The resin pellets molding method of Claim 4, further comprising a step of introducing a gas into the liquidized resin pellets and dispersing the gas in the resin pellets. 55 Patentansprüche 1. Harzpellets zum Formen, die ein erstes Harz, das aus einer Pflanze gewonnen wird, und ein zweites Harz enthalten; 32 EP 3 699 221 B1 wobei das erste Harz die folgende Strukturformel aufweist: 5 10 worin: wenn R1 und R2 gleich sind und eine Acetylgruppe darstellen n eine ganze Zahl gleich oder größer als 2 darstellt, und das zweite Harz ausgewählt ist aus Polymethylmethacrylat (PMMA), Polycarbonat (PC), Polypropylen (PP), Polyethylen (PE) oder Polyethylenterephthalat (PET), oder wenn R1 und R2 gleich sind und eine Acetonylgruppe oder eine Carboxylgruppe darstellen, n eine ganze Zahl gleich oder größer als 2 darstellt; das zweite Harz Polymethylmethacrylat (PMMA) ist, wobei das erste Harz mindestens 10 Prozent und höchstens 90 Prozent des Gewichts der Harzpellets ausmacht und das zweite Harz höchstens 90 Prozent und mindestens 10 Prozent des Gewichts der Harzpellets ausmacht. 15 20 2. Harzpellets zum Formen nach Anspruch 1, wobei die Harzpellets 30 bis 60 Gewichtsprozent des ersten Harzes und 40 bis 70 Gewichtsprozent des zweiten Harzes umfassen. 3. Harzpellets nach Anspruch 2, wobei die Harzpellets 40 bis 50 Gewichtsprozent des ersten Harzes und 50 bis 60 Gewichtsprozent des zweiten Harzes enthalten. 4. Verfahren zum Formen von Harzpellets, umfassend: 25 30 - einen Schritt des Einfüllens der Harzpellets nach einem der Ansprüche 1 bis 3 in einen Harzinjektor, wobei die Harzpellets verfestigt werden; - einen Schritt des Verflüssigens der Harzpellets in dem Harzinjektor durch Erhitzen und Pressen der Harzpellets; - einen Schritt des Injizierens der verflüssigten Harzpellets aus dem Harzinjektor in eine Form durch Pressen der Harzpellets; und - einen Schritt des Abkühlens und Verfestigens der Harzpellets in der Form und des Entnehmens eines geformten Produkts aus der Form. 35 40 5. Verfahren zum Formen von Harzpellets nach Anspruch 4, das ferner einen Schritt des Einführens eines Gases in die verflüssigten Harzpellets und des Dispergierens des Gases in den Harzpellets umfasst. Revendications 45 1. Pastilles de résine pour le moulage comprenant une première résine dérivée d’une plante et une seconde résine ; dans laquelle la première résine a la formule structurelle suivante : 50 55 dans laquelle : 33 EP 3 699 221 B1 lorsque R1 et R2 sont identiques et représentent un groupe acétyle n représente un nombre entier égal ou supérieur à 2, et la seconde résine est choisie parmi le polyméthacryrate de méthyle (PMMA), le poly-carbonate (PC), le polypropylène (PP), le polyéthylène (PE) ou le polyéthylène téréphta-late (PET), ou lorsque R1 et R2 sont identiques et représentent un groupe acétonyle ou un groupe carboxyle, n représente un nombre entier égal ou supérieur à 2 ; la seconde résine est le polyméthacryrate de méthyle (PMMA), la première résine représente au moins 10 % et au plus 90 % en poids des granulés de résine, et la deuxième résine représente au plus 90 % et au moins 10 % en poids des granulés de résine. 5 10 2. Les granulés de résine pour le moulage de la revendication 1, dans lesquels les granulés de résine comprennent de 30 à 60 % en poids de la première résine et de 40 à 70 % en poids de la seconde résine. 3. Les granulés de résine de la revendication 2, dans lesquels les granulés de résine comprennent 40 à 50 % en poids de la première résine et 50 à 60 % en poids de la seconde résine. 4. Méthode de moulage des granulés de résine comprenant : 15 - une étape consistant à charger les granulés de résine de l’une des revendications 1 à 3 dans un injecteur de résine avec les granulés de résine solidifiés ; - une étape de liquéfaction des granulés de résine dans l’injecteur de résine en chauffant et en comprimant les granulés de résine ; - une étape d’injection des pastilles de résine liquéfiées à partir de l’injecteur de résine dans un moule en pressant les pastilles de résine ; et - une étape de refroidissement et de solidification des granulés de résine dans le moule et d’extraction d’un produit moulé du moule. 20 25 5. La méthode de moulage des pastilles de résine de la revendication 4, comprenant en outre une étape d’introduction d’un gaz dans les pastilles de résine liquidées et de dispersion du gaz dans les pastilles de résine. 30 35 40 45 50 55 34 EP 3 699 221 B1 35 EP 3 699 221 B1 36 EP 3 699 221 B1 REFERENCES CITED IN THE DESCRIPTION This list of references cited by the applicant is for the reader’s convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard. Patent documents cited in the description • JP 2016179694 A [0003] 37