WO2010119547A1 - Articlé moulé comportant une résine biodégradable, son procédé de fabrication et d'élimination - Google Patents

Articlé moulé comportant une résine biodégradable, son procédé de fabrication et d'élimination Download PDF

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Publication number
WO2010119547A1
WO2010119547A1 PCT/JP2009/057685 JP2009057685W WO2010119547A1 WO 2010119547 A1 WO2010119547 A1 WO 2010119547A1 JP 2009057685 W JP2009057685 W JP 2009057685W WO 2010119547 A1 WO2010119547 A1 WO 2010119547A1
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WIPO (PCT)
Prior art keywords
molded product
biodegradable resin
resin molded
biodegradation accelerator
synthetic resin
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Application number
PCT/JP2009/057685
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English (en)
Japanese (ja)
Inventor
孝 大野
Original Assignee
アグリフューチャー・じょうえつ株式会社
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Priority to PCT/JP2009/057685 priority Critical patent/WO2010119547A1/fr
Publication of WO2010119547A1 publication Critical patent/WO2010119547A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0059—Degradable
    • B29K2995/006—Bio-degradable, e.g. bioabsorbable, bioresorbable or bioerodible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Definitions

  • the present invention relates to a technology for disposal of resin molded products that emphasizes environmental conservation, and particularly belongs to the field of resin molded products having biodegradability that is decomposed by microorganisms.
  • Agricultural materials made of synthetic resin used for agricultural production (coating materials such as houses, tunnels, mulch, non-woven fabrics and cold chills, plastic containers, pipes, hoses, shore plates, irrigation tubes, house bands, seedling trays, pots and fertilizer bags
  • Agrochemical containers such as adhesive tapes, adhesive tapes, etc.
  • These industrial wastes are not only illegally dumped and illegally landfilled, but field burning is also prohibited because of the generation of toxic gases, and it is obliged to properly handle them at the responsibility of the producer.
  • this invention makes it a subject to solve the above-mentioned problem, and provides a biodegradable resin molded product which is soil-reduced by microorganisms in a short period of time when landfilled after use, a manufacturing method thereof, and a disposal method thereof Objective.
  • the biodegradable resin molded product of the present invention is provided on the surface of the deep layer portion composed of a synthetic resin containing a biomass-derived component as an optional component, and on the surface of the deep layer portion. And a surface layer portion containing a biodegradation accelerator.
  • the biomass-derived component when the biomass-derived component is contained in the deep layer, the biomass-derived component is also directly decomposed by microorganisms in the soil, so that the decomposition rate of the molded product after landfill disposal is increased.
  • the synthetic resin a polyolefin having a linear skeleton consisting only of carbon and hydrogen is suitable among the general-purpose resins because it is easily biodegradable.
  • the invention of the biodegradable resin molded product is characterized in that the deep layer portion also contains the biodegradation accelerator in a lower ratio than the surface layer portion.
  • the invention of the biodegradable resin molded product is characterized in that the surface layer portion contains an olefinic wax synthesized with a single site catalyst as a binder for bringing the biodegradation accelerator into close contact with the surface of the deep layer portion.
  • the olefinic wax synthesized with a single site catalyst has a small molecular weight distribution, so that a uniform surface layer portion with a uniform film thickness is formed, and decomposition started from the surface layer portion. Will progress evenly throughout the molded product.
  • the invention of the biodegradable resin molded product is characterized in that it is hermetically packaged to block the air and circulate, and more preferably, a deoxygenating agent is packed together.
  • the invention of the method for producing a biodegradable resin molded article includes the synthetic resin or a precursor thereof, the biomass-derived component that is an optional component, the biodegradation accelerator, and the biodegradation accelerator.
  • a step of kneading a master batch formed by mixing a binder to be in close contact with a synthetic resin at a set temperature at which the binder has a lower viscosity than the synthetic resin, the synthetic resin, the biodegradation accelerator, and the binder And a step of injecting a kneaded material containing at least a molding apparatus into a molding apparatus.
  • a binder having a higher fluidity than the synthetic resin constituting the molded product has a certain thickness as a surface layer portion covering the entire surface of the molded body, giving priority to the injection process.
  • the biodegradable resin molded product described above can be efficiently produced.
  • the invention of the method for producing a biodegradable resin molded article includes a solution containing the biodegradation accelerator, a binder for closely attaching the biodegradation accelerator to the synthetic resin, and a solvent. And a step of volatilizing a solvent from the solution applied or dispersed to fix the biodegradation accelerator and the binder on the surface of the molded body.
  • the invention of the method for disposing of the biodegradable resin molded product includes a step of providing a surface layer part containing a biodegradation accelerator on the surface after using a synthetic resin molded body containing a biomass-derived component as an optional component. And filling the molded body having the surface layer part in soil.
  • the surface layer portion may be formed by applying a solution containing the biodegradation accelerator and unsaturated fatty acid and / or a refined biomass-derived component to the surface of the molded body. It is provided by being dispersed.
  • the refined biomass-derived component functions as a dispersant for the biodegradation accelerator in the solution, and at the same time brings about an effect of promoting the decomposition from the surface layer portion to the deep layer portion of the molded product.
  • a biodegradable resin molded product that is reduced in a short period of time by microorganisms when landfilled after use, and a related technology.
  • Biodegradable resin molded products are used in the same way as general resin molded products, and after the product life cycle is completed, It refers to something that naturally breaks down while being decomposed.
  • biodegradation refers to a process in which the molecular chain of a polymer compound constituting a molded product is broken by the action of microorganisms and further oxidatively decomposed to lower the molecular weight while discharging carbon dioxide gas, water, and the like.
  • Molded products can take either film (sheet) form or bulk form, but are for applications with a performance guarantee period of less than 1 year and at most less than 3 years. Specifically, it is suitably used for disposable products such as various bags (plastic bags, garbage bags), packing tape, strings, stationery, miscellaneous goods, and industrial materials (for agriculture, civil engineering, etc.).
  • the molded product is composed of a deep layer portion serving as a base and a surface layer portion having a thickness ranging from several tens of ⁇ m to several hundreds of ⁇ m so as to cover the surface of the deep layer portion.
  • a molded article ensures the basic performance requested
  • the surface layer portion includes a biodegradation accelerator that biodegrades the synthetic resin and a binder that adheres (fixes) the biodegradation accelerator to the surface of the deep layer portion.
  • the deep layer portion includes a synthetic resin as a main component thereof, a biodegradation accelerator contained as an optional component in a range of 0 wt% to 2 wt% and in a lower ratio than the surface layer portion, and an optional component of 0 wt% to 80 wt%. And a biomass-derived component contained in the range of% by weight.
  • the synthetic resin any of a thermoplastic resin that reversibly changes to a fluid state / solid state as the temperature rises / falls, and a thermosetting resin that cures by heating and becomes an irreversible solid state can be adopted. it can.
  • the thermoplastic resin (synthetic resin) applied to the main component of the deep layer includes low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), ethylene -Polyolefin resins such as ethyl acrylate copolymer (EEA) are preferred.
  • LDPE low density polyethylene
  • HDPE high density polyethylene
  • PP polypropylene
  • EVA ethylene-vinyl acetate copolymer
  • ESA ethylene -Polyolefin resins such as ethyl acrylate copolymer
  • thermoplastic synthetic resins that can be applied include polycarbonate resin (PC), polyethylene terephthalate resin (PET), acrylic / butylene / styrene (ABS), etc. Can be used without particular limitation. Furthermore, these thermoplastic resins may be used as a mixture of two or more.
  • thermosetting resin synthetic resin
  • various known thermosettings such as epoxy resin, phenol resin, unsaturated polyester resin, urea resin, melamine resin, polyimide, diallyl phthalate, alkyd, etc. Resin.
  • These thermosetting resins can be formed into molded articles by adding a known curing agent to the main agent, maintaining a predetermined shape, and setting the curing temperature to a polymerization reaction.
  • the monomer (precursor) before the polymerization reaction of the main component of these thermosetting resins is a low molecular weight compound, it can take any property of liquid, solid, or semi-solid at room temperature.
  • the temperature When the temperature is raised and set to the flow temperature, a fluidized state is exhibited, and when the temperature is further raised and set to the curing temperature, a polymerized cured product is obtained.
  • the deep layer part of the molded product mainly composed of a thermosetting resin is formed by extruding the monomer before the polymerization reaction into the fluid at a flow temperature lower than the curing temperature, and then extruding it into the mold cavity.
  • the mold is cured by setting the mold at a curing temperature.
  • the biomass-derived component refers to a component obtained by utilizing the next exemplified biomass (biological resource) as a primary raw material.
  • biomass refers to organic resources that can be regenerated among animals and plants that grow by solar energy.
  • lignocellulose or plant-based biomass mainly composed of cellulose (such as thinning and building demolition materials such as wood industry and pulp industry waste, rice straw, pods and straw) , Etc.), starchy biomass mainly composed of amylose or amylopectin (rice, wheat, corn, potato, sweet potato, tapioca, etc.), chitin (or chitosan) based biomass derived from crustacean animals Gala etc.).
  • the biomass-derived component is prepared in advance as a mixed composition with the above-described synthetic resin (biomass / resin composite pellet; that does not include at least a biodegradation accelerator as a component).
  • biomass / resin composite pellet molding method characterized in that a biomass-derived component is finely and uniformly dispersed in a continuous phase of a synthetic resin
  • present applicant's already filed application Japanese Patent Laid-Open No. 2007-2007.
  • JP-A-169615 “starch-containing resin composition”, JP-A-2007-169612, “woody material-containing resin composition”, JP-A-2006-021502, “starch-containing resin composition, method for producing the same, film formation thereof Product and molding method of this molded product ”) and the like.
  • the ratio of biomass-derived components in such a biomass / resin composite pellet is set to be equal to or higher than the ratio in the deep layer described above.
  • an appropriate amount of genuine synthetic resin pellet is mixed, and the ratio of biomass-derived components in the deep layer is determined. Will be adjusted.
  • Biodegradation accelerators include one or more metal carboxylates, a combination of one or more metal carboxylates and an aliphatic polyhydroxycarboxylic acid, a combination of metal carboxylates and fillers, or transition metals Complex etc. are mentioned.
  • a biodegradation accelerator being blended in the surface layer portion of the molded product at a higher ratio than the deep layer portion, the progress of biodegradation of the synthetic resin is started from this surface layer portion by the action of oxygen. Become.
  • the oxygen activated by the biodegradation accelerator converts hydrogen at the allylic position of the olefin, H on the CHO- of the starch. It becomes the starting point of the decomposition reaction by pulling out.
  • the decomposition of the surface layer preferentially proceeds immediately after the start of decomposition.
  • the polysaccharides constituting the biomass blended in the synthetic resin easily generate radicals by the action of the biodegradation accelerator, chain radicals toward the deep layer, and confine the generated radicals. Thereby, decomposition
  • the metal carboxylate is considered to be a basic component that promotes the activation of oxygen and contributes to the decomposition of the synthetic resin, and the aliphatic polyhydroxycarboxylic acid is subjected to the extraction of hydrogen by the activated oxygen. It is thought to promote the progress of decomposition.
  • Transition elements include, for example, any one or more of Fe, Mn, Co, Ce, Cu, saturated / unsaturated fatty acids (including alicyclic fatty acids and synthetic fatty acids) having 8 to 22 carbon atoms, monoolefin fatty acids 0.01% to 10% of salt decomposition resin is used. At the same time, 0.01% to 5% of one or more fatty acid salts of Ca, Mg and Zn (same as above) are used.
  • a stabilizer for the metal salt solution at least one of glycerin, polyglycerin, polyethylene glycol, sorbitol, pentaerythritol or a fatty acid ester thereof is added in an amount of 10 to 20% of the metal salt.
  • a stabilizer for the metal salt solution lactic acid, citric acid, malic acid, and 5 to 10% of the metal salt are added.
  • the above four types are mixed and used as an oxidation catalyst.
  • the biodegradation accelerator any one can be selected as long as it promotes a radical reaction necessary for promoting the decomposition of the synthetic resin, and a peroxide or the like can also be used.
  • a synthetic resin to which such a biodegradation accelerator is added undergoes degradation through the following two stages.
  • oxidative decomposition of the synthetic resin starts with a radical reaction by the catalytic function of the biodegradation accelerator.
  • the main chain of the synthetic resin is broken and the molecular weight is lowered.
  • the low molecular weight compounds for example, carboxylic acids, alcohols and ketones
  • the low molecular weight compounds produced in the first stage are consumed by the metabolic activities of microorganisms in the soil, and are converted into further low molecular weight compounds, carbon dioxide and water, etc. It will change and be excreted.
  • the binder contains the biodegradation accelerator and can be used without limitation as long as it has a function of fixing the biodegradation accelerator to the surface of the deep layer portion of the molded article.
  • biodegradation accelerator Those having different properties corresponding to (“simultaneous kneading method”, “coating method”) are employed.
  • the binder in this case is a wax that is solid at room temperature and flows when heated, and also exhibits a lower viscosity than a synthetic resin that is in a fluid state by heating.
  • This wax may be extracted from a natural product or synthesized industrially, but the main chain of the chain hydrocarbon in the organic compound has a carbon number in the range of 10 to 100. It is desirable to be an organic compound.
  • Such a low molecular weight wax (binder) definitely has a lower viscosity than a synthetic resin that ensures the mechanical properties of the molded product at the flow temperature at which the kneading is performed.
  • This wax is prepared in advance as a mixed composition (masterbatch) with the biodegradation accelerator described above. That is, when such a masterbatch and the aforementioned biomass / resin composite pellet are mixed and kneaded at a flow temperature, the synthetic resin, biomass-derived component, binder and biodegradation accelerator, which are component elements of the molded product, are fine and uniform. It becomes a dispersed fluid.
  • the molten wax component containing the biodegradation accelerator is preferentially wetted with the wall surface of the cavity.
  • molding die is opened, a molded article provided with the surface layer part in which a biodegradation promoter is contained in a higher ratio than a deep layer part will be obtained.
  • the carbon number of the wax (binder) is smaller than 10
  • the fixing power of the biodegradation accelerator on the surface of the deep layer is weakened.
  • the number of carbon atoms is larger than 100, the viscosity of the melted binder increases, and the thickness of the surface layer portion to be formed becomes thin or uneven when injected into a mold described later.
  • waxes those extracted from natural products include saturated fatty acids.
  • the saturated fatty acid is a monovalent carboxylic acid of a chain hydrocarbon, and is a compound represented by the formula of CH3 (CH2) nCOOH, and n is 9 or more to be applied to the present invention. Those are preferred.
  • industrially synthesized wax includes olefin resins (particularly propylene-based and ethylene-based) polymerized by a single site catalyst typified by a metallocene catalyst.
  • olefin resins particularly propylene-based and ethylene-based polymerized by a single site catalyst typified by a metallocene catalyst.
  • specific examples include homopolymers of propylene or ethylene monomers, and copolymers of these monomers with ⁇ -olefins.
  • the ⁇ -olefin include ethylene, 1-butene, 1-pentene, 1-hexene, 4-methyl-1-pentene, 1-heptene, 1-octene and the like
  • the copolymer is a block copolymer. Any of a random copolymer and a random block copolymer may be used.
  • a binder may mix and use 2 or more types of above-mentioned organic compounds.
  • the metallocene catalyst which is a single site catalyst is a metallocene compound of a transition metal selected from Group 4 of the periodic table, and specific examples thereof include compounds represented by the following general formula (1). MLx (1)
  • M is a transition metal selected from Group 4 of the periodic table, and examples thereof include zirconium, titanium, and hafnium.
  • x is the valence of the transition metal M.
  • L is a ligand coordinated to the transition metal M, and at least one of the ligands L is a ligand having a cyclopentadienyl skeleton.
  • the olefin resin wax polymerized by the single-site catalyst has a uniform distribution of side chain branching, molecular weight, and crystal grain size compared to the case of a multi-site catalyst typified by a Ziegler-Natta catalyst.
  • the surface layer portion containing the biodegradation accelerator is thick and has a low melt viscosity when compared with a wax having the same molecular weight by another production method. It can be provided with high fixing power without unevenness.
  • the biodegradation accelerator can be finely and uniformly dispersed in the deep layer of the molded product.
  • the binder in this case is a vehicle that is solid at room temperature and dissolves into a solution when poured into an aqueous or organic solvent, and spreads on the target surface when the solvent is volatilized after the solution is applied or spread on the target surface. It is. That is, a solution containing a biodegradation accelerator, a binder, a solvent, and a dispersant that uniformly disperses them is applied to or sprayed on the surface of the base body (deep layer portion) of the molded body and then desolvated to thereby form a predetermined film on the surface. A thick surface layer portion is formed.
  • a vehicle As such a vehicle (binder), products for known paints can be diverted.
  • natural vehicles include shellac (distribution of larvae) and lacquer / rosin (tree crab).
  • Synthetic compounds include alkyd, amino, vinyl, acrylic, epoxy, polyamide, polyurethane, acrylic urethane, saturated polyester, unsaturated polyester, phenol, and polyolefin.
  • the biomass / resin composite pellets, biodegradation accelerator masterbatch, and synthetic resin for composition adjustment (may contain precursors before synthesis of these synthetic resins) are put into the hoppers of these kneaders To do.
  • the temperature at which the kneading is carried out is naturally set to a temperature at which the synthetic resin and the binder flow, but it should be noted that the set temperature is lower in the binder than in the synthetic resin.
  • the kneaded product containing the biodegradation accelerator, the binder and the synthetic resin is led to a molding apparatus such as injection molding, profile extrusion molding, blow molding, inflation molding, calendar molding, sheet extrusion molding, Bulk and sheet shaped products are manufactured.
  • ⁇ Manufacturing method 2 Coating method> Next, the 2nd manufacturing method of a biodegradable resin molded product is demonstrated. First, a base part of a biodegradable resin molded product molded by a general manufacturing method is obtained (deep layer part). Next, the biodegradation accelerator, vehicle (binder), solvent, and dispersant are stirred in a container to obtain an emulsion (solution).
  • the emulsion (solution) is coated on the surface of the base portion (deep layer portion) of the molded body using a brush, sprayed using a sprayer, or applied with a brush.
  • the solvent is volatilized from the coated emulsion (solution) to fix the surface layer portion mainly composed of the biodegradation accelerator and the vehicle (binder) on the surface of the mother body (deep layer portion).
  • the biodegradable resin molded product starts to deteriorate from its surface layer portion immediately after it is manufactured due to oxygen in the atmosphere. For this reason, it is desirable that the molded product be sealed and packaged to be stored and distributed while blocking the atmosphere. Furthermore, it is desirable that the oxygen scavenger (for example, AGELESS (registered trademark), etc.) is packaged together and hermetically packaged.
  • oxygen scavenger for example, AGELESS (registered trademark), etc.
  • Disposal of the biodegradable resin molded product after use may be buried in soil or piled up as it is. However, it is necessary to ensure a certain degree of air permeability so as not to hinder the activity of microorganisms that decompose the molded product.
  • a surface layer portion containing a biodegradation accelerator may be newly provided on the surface of the molded product using the above-described coating method or the like. Thereby, the decomposition rate in the soil of the molded article after use is further improved.
  • the component of the above-mentioned emulsion (solution) is replaced with the above-mentioned vehicle (binder) (or with a vehicle) unsaturated fatty acid and / or refined biomass.
  • the unsaturated fatty acid is, for example, oleic acid and the like, but easily generates radicals by the action of a biodegradation accelerator and enhances spreadability to a molded product.
  • a polyunsaturated fatty acid such as linoleic acid having a high radical generating effect is used, the decomposition is accelerated.
  • the refined biomass-derived component uniformly disperses the biodegradation accelerator in the emulsion (solution), and after being applied to the surface of the molded product, the biodegradation accelerator is firmly fixed uniformly. In the first place, the self is immediately biodegraded to become a detonator for the decomposition of the entire molded product.
  • Such refined biomass-derived components are fibrillated cellulosic materials, etc., and the woody material is made into a granular or chip-like shape with a size of several millimeters, and then mechanically pulverized or chemically treated. Or a fibrous body.
  • the base body (deep layer part) of the biodegradable resin molded product has shown the embodiment in the case where the biomass-derived component is included, it may not be included. That is, even if the base (deep layer part) of the molded product is made of only synthetic resin, if a surface layer part containing a biodegradation accelerator is provided on the outer periphery, the surface layer part is not present. Thus, high biodegradability is obtained.
  • the biodegradation accelerator in the base material (deep layer part) of this molded product may or may not be contained in a lower ratio than the surface layer part.
  • the deep layer portion and the surface layer portion in this molded product are not limited to the case where the content of the biodegradation accelerator is a clear one that changes discontinuously at the interface, but continuously changes (inclines). It is also included.
  • the biodegradation accelerator is not limited to the above-described compounds, and any biodegradation accelerator can be used as long as it has a function of decomposing the main chain of the synthetic resin by the action of oxygen to reduce the molecular weight.
  • the biodegradation accelerator is not originally included in the deep layer portion or the surface layer portion of the molded product to be disposed of. Cases are also included.
  • Inflation set temperature 170 ° C
  • Resin 62 parts by weight of synthetic resin (LLDPE) and 40.5 parts by weight of biomass (milled rice) (water content 13.5%, dry weight 35 parts by weight) , 3 parts by weight of a compatibilizer (Sanyo Kasei Co., Ltd., Umex 1001) and 0.65 parts by weight of a biodegradation accelerator
  • Example 1 Master batch of synthetic resin + biodegradation accelerator (simultaneous kneading method; with surface layer) Processing method: Inflation (set temperature 170 ° C.), thickness 30 microns, 500 mm width Resin: 98 parts by weight of synthetic resin (LLDPE) and 2.65 parts by weight of master batch were dry blended.
  • the masterbatch used was a mixture of 2 parts by weight of an olefinic wax (Clariant, Ricocene 2602) synthesized with a single site catalyst and 0.65 parts by weight of a biodegradation accelerator (P-Life SMC2360, P-Life). It was prepared by heating and kneading with a pressure kneader (Moriyama, manufactured by Moriyama Corporation).
  • Biomass / resin composite material + biodegradation accelerator master batch (simultaneous kneading method; with surface layer) Processing method: Inflation (set temperature 170 ° C.), thickness 30 ⁇ m, width 500 mm Resin used: 98 parts by weight of biomass / resin composite material and 2.65 parts by weight of the master batch described above were dry blended.
  • the biomass / resin composite material used was 60 parts by weight of LLDPE, 40.5 parts by weight of polished rice (13.5% moisture content, 35 parts by weight of dry weight), and 3 parts by weight of a compatibilizer (Sanyo Kasei Co., Ltd., Umex 1001). The mixture was heated and kneaded with a twin screw extruder (manufactured by Nippon Steel Works, Ltd., TEX77 ⁇ ) to form a compound.
  • Biomass / resin composite material + biodegradation accelerator application method; surface layer provided
  • Processing method Inflation (set temperature 170 ° C), thickness 30 microns, width 500mm
  • Resin used 98 parts by weight of the above-mentioned biomass / resin composite material and olefin wax synthesized with a single site catalyst (Clariant, Ricosen 2602) 2 parts by weight were dry blended.
  • Surface layer portion The film prepared as described above was formed into a strip of 110 ⁇ 25 mm (thickness 0.03 mm).
  • Example 1 Even if it does not contain a biomass origin component from the result of Example 1, if it has the surface layer which mix

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention porte sur un article moulé qui comporte une résine biodégradable qui consiste en une partie de couche profonde, qui comporte une résine synthétique contenant un composant issu d'une biomasse comme composant facultatif, et une partie de couche de surface, qui est disposée sur la surface de la partie de couche profonde telle que décrite ci-dessus et qui contient un accélérateur de biodégradation pour la résine synthétique telle que décrite ci-dessus. Cet article est caractérisé par le fait que la partie de couche de surface décrite ci-dessus contient une cire à base d'oléfine, qui a été synthétisée avec l'utilisation d'un catalyseur à site unique, en tant que liant pour faire adhérer étroitement l'accélérateur de biodégradation décrit ci-dessus à la surface de la partie de couche profonde décrite ci-dessus, et l'article est distribué dans un état conditionné de manière étanche à l'air pour bloquer l'air.
PCT/JP2009/057685 2009-04-16 2009-04-16 Articlé moulé comportant une résine biodégradable, son procédé de fabrication et d'élimination WO2010119547A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020175276A1 (fr) * 2019-02-25 2020-09-03 モアディバイス株式会社 Film biodégradable de conservation de fraîcheur et récipient biodégradable de conservation de fraîcheur

Citations (2)

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JP2002542313A (ja) * 1999-04-01 2002-12-10 プログラマブル ライフ インコーポレイテッド 生分解性高分子組成物の製造方法
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JP2008296569A (ja) * 2007-05-01 2008-12-11 Agri Future Joetsu Co Ltd 高分子複合材料の製造装置及びその製造方法

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* Cited by examiner, † Cited by third party
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WO2020175276A1 (fr) * 2019-02-25 2020-09-03 モアディバイス株式会社 Film biodégradable de conservation de fraîcheur et récipient biodégradable de conservation de fraîcheur
JPWO2020175276A1 (fr) * 2019-02-25 2020-09-03
CN113474261A (zh) * 2019-02-25 2021-10-01 摩尔装置有限公司 生物分解性保鲜膜及生物分解性保鲜容器

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