WO2005063876A1 - 熱可塑性エラストマー組成物およびその製造方法並びに成形品 - Google Patents
熱可塑性エラストマー組成物およびその製造方法並びに成形品 Download PDFInfo
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- WO2005063876A1 WO2005063876A1 PCT/JP2004/017946 JP2004017946W WO2005063876A1 WO 2005063876 A1 WO2005063876 A1 WO 2005063876A1 JP 2004017946 W JP2004017946 W JP 2004017946W WO 2005063876 A1 WO2005063876 A1 WO 2005063876A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/02—Ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
- C08L101/06—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing oxygen atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
- C08L23/147—Copolymers of propene with monomers containing other atoms than carbon or hydrogen atoms
Definitions
- the present invention relates to a thermoplastic elastomer composition, a method for producing the same, and a molded article.
- the present invention relates to a thermoplastic elastomer composition, a method for producing the same, and a molded article using the thermoplastic elastomer composition.
- thermoplastic elastomer yarns those comprising an olefin resin and an ethylene / propylene 'gen copolymer rubber (for example, see Patent Document 1 and the like), and an olefin resin have been used.
- thermoplastic elastomer yarns those comprising an olefin resin and an ethylene / propylene 'gen copolymer rubber (for example, see Patent Document 1 and the like), and an olefin resin have been used.
- Known are those made of tolyl rubber (for example, see Patent Document 2 and the like) and those made of polyamide resin and -tolyl rubber or acrylic rubber (for example, see Patent Document 3 and the like).
- thermoplastic elastomer composition comprising an olefin resin and an ethylene 'propylene' gen copolymer rubber has problems in heat resistance and oil resistance. Further, a thermoplastic elastomer composition composed of a olefin-based resin and -tolyl rubber has excellent oil resistance, but has a problem in heat resistance due to having a double bond. In addition, a thermoplastic elastomer composition comprising a polyamide resin and -tolyl rubber or acrylic rubber has a problem in power cold resistance, which has excellent oil resistance and heat resistance.
- Patent Document 1 Japanese Patent No. 2140072
- Patent Document 2 Patent No. 3257089
- Patent Document 3 JP-A-11 349734
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a thermoplastic elastomer composition having mechanical properties equal to or higher than those of a conventional thermoplastic elastomer composition, and an excellent heat resistance.
- An object of the present invention is to provide a thermoplastic elastomer composition having water resistance and oil resistance, a method for producing the same, and a molded article using the thermoplastic elastomer composition.
- thermoplastic elastomer composition of the present invention is characterized by containing a thermoplastic resin having a polar group and an ethylene' ⁇ -olefin-based elastomer having a functional group.
- a functional group-containing ethylene'a-olefin elastomer is ethylene, ⁇ -olefin having 3-10 carbon atoms, and an unsaturated monomer having a functional group.
- the functional group power of the unsaturated monomer having a functional group is preferably a carboxyl group, a hydroxyl group, an epoxy group or a sulfonic acid group.
- the ethylene 'alpha-old Refuin elastomers Ichiriki ethylene 35- 94 having a functional group. 99 mole 0/0, the number of carbon atoms is 3-10 alpha-Orefin 5- 50 mole 0/0, not having a functional group It is preferable that the monomer is a random copolymer obtained by copolymerizing 0.01 to 5 mol% of the unsaturated monomer and 0 to 10 mol% of the non-conjugated diene.
- the unsaturated monomer having a functional group is preferably a functional cyclic conjugate represented by the following general formula (1).
- R 1 represents a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms
- ⁇ 1 , ⁇ 2 and ⁇ 3 each independently represent a hydrogen atom, a carbon atom having 1 to 10 carbon atoms.
- at least one of Y 1 , Y 2 and Y 3 is —COOH, and at least two of Y 1 , Y 2 and Y 3 are COOH In such cases, they may be acid anhydrides (1-CO— (O) —CO—) formed by linking each other.
- o is an integer from 0-2, and p is an integer from 0-5.
- thermoplastic resin having a polar group is composed of an aminoacrylamide polymer, an ethylene-vinyl acetate copolymer, a polyethylene oxide, an ethylene-acrylic acid copolymer, and acrylonitrile.
- Butadiethane and styrene Polymer acrylonitrile 'chlorinated polyethylene' ethylene copolymer, acrylonitrile 'styrene copolymer, acrylonitrile' styrene 'acrylate resin, acrylic resin, methacrylic resin, polyamide resin, polycarbonate, vinyl alcohol resin, It is preferably at least one resin selected from the group consisting of vinyl acetal resin, methyl methacrylate resin, polyether resin, polyester resin, and polyacrylate.
- thermoplastic elastomer composition of the present invention the ratio of the thermoplastic resin having a polar group to the ethylene- ⁇ -olefin-based elastomer having a functional group is defined as a weight ratio. 5: 95—90: 10 is preferred! /.
- thermoplastic elastomer composition of the present invention a softening agent is added to a total of 100 parts by weight of the thermoplastic resin having a polar group and the ethylene' ⁇ -olefin-based elastomer having a functional group. 200 parts by weight may be contained.
- thermoplastic elastomer composition of the present invention is a method for producing the above-mentioned thermoplastic elastomer composition
- the method is characterized by comprising a step of dynamically heat-treating a thermoplastic resin having a polar group and an ethylene-a-lefin olefin-based elastomer having a functional group in the presence of a crosslinking agent.
- the molded article of the present invention is characterized by comprising the above-mentioned thermoplastic elastomer composition.
- thermoplastic elastomer composition of the present invention has mechanical properties equivalent to or higher than those of a conventional thermoplastic elastomer composition, and also has excellent heat resistance and oil resistance.
- thermoplastic elastomer composition can be advantageously produced.
- thermoplastic elastomer composition of the present invention has excellent heat resistance and oil resistance, and has excellent heat resistance, oil resistance, automobile bumper, exterior molding, wind seal gasket, door seal gasket, trunk seal gasket, roof side rail, and the like.
- Emblems, inner panels, door trims, interior and exterior skin materials such as console boxes, weather strips, etc., seat cushions for automobiles and motorcycles, leather seats that require scratch resistance, sealing materials for aircraft and ships, and interior and exterior skins
- Condensers and weak electrical parts such as seal materials for general machinery and equipment, such as materials for materials, civil engineering, seal materials for construction, interior and exterior skin materials, and waterproof sheet materials.
- FPDs flat panel displays
- films for electronic components films for semiconductors and liquid crystal displays
- packing for products water tank sealants, sealing materials for fuel cell stacks, skin materials or housings, etc.
- Protective films, sealing materials for electronic components such as hard disk gaskets, image protective films such as photographs, decorative films for construction materials, medical device components, wire coating materials, daily necessities, caps, and various industrial hoses. It is useful as a material for general processed products such as tubes, belts, and sporting goods.
- thermoplastic elastomer composition [Thermoplastic elastomer composition]
- thermoplastic elastomer composition of the present invention contains a component (A) composed of a polar thermoplastic resin and a component (B) composed of an ethylene' ⁇ -lean olefin-based elastomer having a functional group. It becomes.
- ethylene- ⁇ -olefin elastomer having a functional group constituting the component (ii) at least ethylene, ⁇ -olefin having 3 to 10 carbon atoms, and an unsaturated monomer having a functional group are copolymerized. It is preferable to use a random copolymer (hereinafter, referred to as a “specific functional group-containing copolymer”).
- ethylene is used as an essential monomer component.
- the proportion of ethylene is rather preferably a 35- 94.99 mol% of the total monomer component, more preferably 40- 89.99 mol 0/0, and particularly preferably 45 - 84.99 mol 0 / 0 .
- the use ratio of ethylene is less than 35 mol%, it may be difficult to copolymerize a functional cyclic conjugate described below.
- the proportion of ethylene used exceeds 94.99 mol%, it may be difficult to obtain the rubber elasticity required for the thermoplastic elastomer.
- ⁇ -olefin having 3 to 10 carbon atoms (hereinafter, referred to as “specific ⁇ -olefin”) is used as an essential monomer.
- specific ⁇ -olefin ⁇ -olefin having 10 or less carbon atoms
- the ⁇ -refined olefin and other monomers may be used. And its copolymerizability becomes good.
- Specific examples of the specific ⁇ -olefin include propylene, 1-butene, 1-pentene, 4-methyl-pentene-1,1-hexene, 1-heptene, 1-otaten, 1-decene, and the like. Of these, propylene, 1-butene, 1-hexene, and 1-octene are more preferred, and propylene and 1-butene are more preferred.
- the proportion of the specific ⁇ - old Refuin is more preferably it is preferred instrument is a 5- 50 mole 0/0 of the total monomer components 10- 45 mole 0/0, and particularly preferably 15 40 mol%.
- the use ratio of the specific ⁇ -olefin is less than 5 mol%, it may be difficult to obtain rubber elasticity required as a thermoplastic elastomer.
- the use ratio of the specific ⁇ -olefin exceeds 50 mol%, the obtained elastomer may have low durability.
- an unsaturated monomer having a functional group (hereinafter, referred to as “functional group-containing unsaturated monomer”) is an essential monomer component. Used.
- the unsaturated monomer having a functional group preferably has a carboxyl group, a hydroxyl group, an epoxy group or a sulfonic acid group as a functional group!
- a functional group-containing unsaturated monomer it is preferable to use a functional cyclic compound represented by the above general formula (1) (hereinafter, referred to as “specific functional cyclic compound”).
- R 1 is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms
- ⁇ 1 , ⁇ 2 and ⁇ 3 are each independently represent a hydrogen atom, a hydrocarbon group or a COOH of 1 one 10 carbon atoms
- Upsilon 1 one at least of Upsilon 2 and Upsilon 3 is - is COOH.
- ⁇ 1 , ⁇ 2 and ⁇ 3 are acid anhydrides formed by linking each other (one CO— ( ⁇ ) —CO—).
- hydrocarbon group having 110 carbon atoms examples include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, and a decyl group. Can be mentioned.
- the number of repetitions o is an integer of 0-2. If the number of repetitions o is 3 or more, It may be difficult to copolymerize the cyclic conjugate with another monomer.
- the repetition number p is an integer from 0 to 5.
- Such a specific functional cyclic compound can be produced by condensing cyclopentadiene and a functional group-containing unsaturated compound by a Diels-Alder reaction.
- a specific functional cyclic compound can be produced by condensing cyclopentadiene and a functional group-containing unsaturated compound by a Diels-Alder reaction.
- the proportion of the functional group-containing unsaturated monomer used is preferably 0.01 to 5 mol%, more preferably 0.01 to 4 mol% of the whole monomer component.
- the use ratio of the functional group-containing unsaturated monomer When the use ratio of the functional group-containing unsaturated monomer is less than 0.01 mol%, the obtained ionomer tends to have low crosslink density, low mechanical strength and low heat resistance. On the other hand, if the use ratio of the functional group-containing unsaturated monomer exceeds 5 mol%, the obtained ionomer has too high a crosslinking density and has too high a hardness to be brittle. Therefore, it is not preferable.
- a non-conjugated diene can be used as an arbitrary monomer component in addition to the above-mentioned essential monomer component.
- non-conjugated gen examples include linear non-cyclic gens such as 1,4-hexadiene, 1,6-hexadiene, 1,5-hexadiene, 5-methyl-1,4-hexadiene, 3 , 7-Dimethyl-1,6-octadiene, 5,7-Dimethylocta-1,6-diene, 3,7-Dimethyl-1,7-octadiene, 7 Methylotater 1,6-digen, dihydromyrcene Acyclic Gen, Tetrahydroindene, Methyltetrahydroindene, Dicyclopentadiene, Bicyclo [2.2.1] -Hepta-2,5-gen, 5-Methylene2 norbornene, 5-Ethylidene-2 Norbornene, 5 Probe And alicyclic gens such as -Ru-2 norbornene, 5-isopropylidene-2 norbornene, 5-cyclohexylidene-2 norbornene and
- the non-conjugated gen be used in an amount of 0 to 10 mol% of all monomer components.
- the use ratio of the conjugated gen exceeds 10 mol%, the obtained ionomer may have low durability.
- the specific functional group-containing copolymer has a weight average molecular weight Mw in terms of polystyrene measured by gel permeation chromatography (GPC) of usually 1,000 to 3,000,000, preferably ⁇ 3. , 000-1,000,000, more preferably ⁇ 5,000-700,000. Further, it is more preferable that the specific functional group-containing copolymer has a melt flow rate (MFR) measured at a temperature of 230 ° C. and a load of 10 kg of 0.01—100 gZlOmin. Is 0.05 to 50gZl0min.
- MFR melt flow rate
- the specific functional group-containing copolymer has a glass transition temperature of 90 to 50 ° C, particularly -70 to 10 ° C! /.
- the specific functional group-containing copolymer may be an oil-extended polymer in which a softener is added during polymerization.
- Such a specific functional group-containing copolymer can be produced by an appropriate known polymerization method, and the specific production method is not particularly limited. The method described in JP-A-247629 can be suitably used.
- thermoplastic resin constituting the component (A) has a polar group.
- the thermoplastic resin having a polar group includes those in the main chain, those in the side chain, and those in the polymer constituting the polar resin. Although it has a substituent on the main chain or side chain, it may be misaligned.
- thermoplastic resin examples include aminoacrylamide polymer, ethylene 'butyl acetate copolymer, polyethylene oxide, ethylene' acrylic acid copolymer, 4-methylpentene 1 'resin, acrylonitrile' butagetane 'styrene. Copolymer, Atari mouth-tolyl 'chlorinated polyethylene' Ethylene copolymer, acrylonitrile 'Styrene copolymer, acrylo-tolyl.
- Styrene acrylate resin, acrylic resin, methacrylic resin, polyamide resin, polycarbonate
- vinyl alcohol resin buracetal resin, methyl methacrylate resin, polyether resin, polyester resin, polyacrylate, polybutylene terephthalate, polyester elastomer, polyamide elastomer, and polyurethane elastomer.
- Ku can be used.
- polyamide resin polyamide resin
- polyester resin polybutylene terephthalate
- polyester elastomer polyamide elastomer
- polyurethane elastomer polyurethane elastomer
- polyamide resin various known ones can be used. Specific examples thereof include Nylon 6 (N6), Nylon 66 (N66), Nylon 11 (N11), Nylon 12 (N12), An aliphatic polyamide having an aromatic ring (nylon MXD6) and the like can be mentioned.
- copolymers of the above polyamide resin can also be used. Specific examples thereof include a copolymer of nylon 6 and nylon 66 (N6ZN66), and an alternating copolymer of nylon 6 and nylon 10 ( Nylon 610: N610), and an alternating copolymer of nylon 6 and nylon 12 (nylon 612: N612).
- polyamide resins can be used alone or as a blend of two or more.
- the blend include a blend of nylon 6 and nylon 66 (N6ZN 66), blend of nylon 6 and nylon 11 (N6 / N11), blend of nylon 6 and nylon 12 (N6ZN12), blend of nylon 6 and nylon 610 (N6ZN610), nylon 6 and nylon 612 Blend (N6ZN612), blend of nylon 66 and nylon 11 (N66ZN11), blend of nylon 66 and nylon 12 (N66ZN12), blend of nylon 66 and nylon 610 (N66ZN610), nylon 66 A blend of nylon 612 (N66ZN612), a blend of nylon 11 and nylon 12 (N11ZN12), a blend of nylon 11 and nylon 610 (NllZN610), a blend of nylon 11 and nylon 612 (NllZN612), Two-component systems such as a blend of nylon 12 and nylon 610 (N12ZN610), a blend of nylon 12 and nylon 612 (N12ZN610
- N6ZN11ZN12ZN612 Nylon 6, Nylon 11, Nylon 610 and Nye 4-component blends (N6ZN66ZN11 / N610 / N612) such as blends of N6ZN11ZN610ZN612 and blends of Nylon 6, Nylon 12, Nylon 610 and Nylon 612 (N6ZN 12 / N610 / N612).
- N6ZN66ZN11ZN610ZN612 blends of N6ZN11ZN610ZN612 and blends of Nylon 6, Nylon 12, Nylon 610 and Nylon 612 (N6ZN 12 / N610 / N612).
- a blend of nylon 6, nylon 66, nylon 12, nylon 610, and nylon 612 N6ZN66ZN12ZN610ZN612
- a blend of 6 components such as a blend of nylon 610 and nylon 612 (N6ZN66ZN11ZN12ZN610ZN612).
- the ratio of the component (A) to the component (B) is preferably from 5:95 to 90:10 by weight, more preferably from 10:95 to 90:10. 90—80: 20
- the proportion of the component (A) is too small, the mechanical strength ⁇ oil resistance of the thermoplastic elastomer composition tends to decrease.
- the proportion of the component (B) is too large, the rubber elasticity of the thermoplastic elastomer composition tends to decrease.
- thermoplastic elastomer composition of the present invention may contain a component (C) composed of a softener.
- Component softeners include petroleum-based softeners such as aromatic oil, naphthenic oil, paraffin oil, white oil, petrolatum, and gilsonite, castor oil, cottonseed oil, rapeseed oil, palm oil, coconut oil, and rosin.
- Vegetable oil-based softeners such as dimethyl phthalate, ethyl phthalate, dibutyl phthalate, diisobutyl phthalate, dioctyl phthalate, butyl octyl phthalate, di (2-ethylhexyl) phthalate, diisooctyl phthalate, diisodecyl phthalate, etc.
- Phthalates dimethyl adipate, diisobutyl adipate, di (2-ethylhexyl) adipate, diisootatyl adipate, diisodecyl adipate, octyldecyl adipate, di (2-ethylhexyl) azelate, diyl Soktylaze Fatty acid esters such as diisobutyrate, dibutyl sebacate, di (2-ethylhexyl) sebacate, diisooctyl sebacate, trimellitic acid isodecyl ester, trimellitic acid octyl ester, trimellitic acid n Trimellitic acid esters such as -octylester and trimellitic acid isonol ester; Xyl) fumarate, diethylene glycol monoolate, glyceryl monoricinoleate, trilauryl phosphate, tristearyl phosphat
- the above-mentioned softener may be added to a thermoplastic resin containing a polar group and an ethylene-olefin-based elastomer having a Z or a functional group when producing the thermoplastic elastomer composition.
- an ethylene- ⁇ -olefin-based elastomer having a functional group which may be added to a polar group-containing thermoplastic resin which may be added to a filler described later. May be added at the time of manufacturing.
- the proportion of the component (C) used is preferably 200 parts by weight or less, more preferably 180 parts by weight or less, based on 100 parts by weight of the total of the components ( ⁇ ) and ( ⁇ ). Particularly preferred is 150 parts by weight or less.
- thermoplastic elastomer composition of the present invention has a range of thermoplastic resins other than the polar group-containing thermoplastic resin (hereinafter referred to as “other heat Thermoplastic elastomers other than ethylene- ⁇ -functional olefin-based elastomers having functional groups (hereinafter referred to as “other thermoplastic elastomers!”) And rubber strength were also selected.
- a polymer compound hereinafter, referred to as “another polymer compound” can be contained.
- thermoplastic resins include polyethylene, polyisobutylene, polypropylene, atactic poly-1-butene homopolymer and ⁇ -olefin copolymer resin (for example, propylene and ethylene, 1-butene, 1-pentene, and 1-butene; 1 one hexene, 4 Mechinore 1-pentene, 1 Otaten, 1 Desen be other copolymer of ⁇ Orefuin such, structural units derived from propylene 50 mol 0/0 or more of A copolymer with other ⁇ -olefins such as ethylene or propylene, 1-pentene, 1-hexene, 4-methyl-1-pentene, 1-octene, 1-decene, and the structural unit derived from 1-butene is 50 Mole % Or more), polyisobutylene, 4-methylpentene 1-polyethylene, polystyrene and the like.
- ⁇ -olefin copolymer resin for example, propylene
- thermoplastic elastomers and rubbers include ethylene ' ⁇ -olefin copolymer rubber, ethylene' ⁇ -olefin 'non-conjugated copolymer rubber, and styrene' anhydrous maleate hydrogenated butadiene rubber.
- Acid graft polymer, butadiene rubber and its hydrogenated product maleic anhydride graft polymer of hydrogenated butadiene rubber, polyisobutylene / isopreneprene copolymer, isoprene rubber and its hydrogenated product, hydrogenated product of isoprene rubber
- These other polymer compounds may be used alone or in combination of two or more.
- thermoplastic elastomer composition of the present invention may contain various additives.
- Additives and fillers include antioxidants, antistatic agents, blocking agents, sealability improvers, lubricants, antiaging agents, heat stabilizers, weathering agents, metal deactivators, ultraviolet absorbers, light stabilizers, Stabilizers such as copper damage inhibitors, fungicides, fungicides, dispersants, crystal nucleating agents, flame retardants, tackifiers, foaming aids, titanium oxide, carbon black, other pigments or coloring agents, ferrite, etc.
- Inorganic fiber such as metal powder, glass fiber, metal fiber, carbon fiber, ara Organic fibers such as mid fibers, composite fibers, inorganic whiskers such as potassium titanate whiskers, glass beads, glass balloons, glass flakes, asbestos, my strength, calcium carbonate, talc, wet silica, dry silica, alumina, alumina silica, Fillers or mixtures thereof such as calcium silicate, porcelain, idoguchi talcite, kaolin, diatomaceous earth, graphite, pumice, evo powder, cotton floc, cork powder, barium sulfate, fluororesin, polymer beads, etc.
- Cellulose powder, rubber powder, wood powder, polyolefin wax, low molecular weight polymer, etc. can be used.
- the method for producing the thermoplastic elastomer composition of the present invention includes a polar group-containing thermoplastic resin as the component (A) and an ethylene- ⁇ -olefin having a functional group as the component (B).
- a method of dynamically heat-treating an ethylene- ⁇ -olefin-based elastomer having a functional group, a softening agent as a component (C) used as necessary, and other components in the presence of a crosslinking agent can be used. .
- thermoplastic elastomer composition that is not dynamically crosslinked
- thermoplastic elastomer composition that is not dynamically crosslinked
- dynamically crosslinked are preferred.
- the dynamic heat treatment is carried out by using a polar group-containing thermoplastic resin as the component ( ⁇ ), an ethylene ⁇ -olefin-based elastomer having a functional group as the component ( ⁇ ), and optionally, (C
- the kneading can be carried out while kneading the softener and other components which are the components. However, after kneading these components, kneading can also be carried out on the kneaded material obtained.
- examples of the crosslinking agent include an organic peroxide, a phenol resin crosslinking agent, sulfur, a sulfur compound, ⁇ -quinone, a derivative of ⁇ quinone dioxime, a bismaleimide-conjugated product, an epoxy compound, and a silani-dage.
- organic peroxide e.g., a peroxide, a phenol resin crosslinking agent, sulfur, a sulfur compound, ⁇ -quinone, a derivative of ⁇ quinone dioxime, a bismaleimide-conjugated product, an epoxy compound, and a silani-dage.
- Compounds, amino resins, polyol cross-linking agents, polyamines, triazine disulfides, metal stones, and the like can be used, and organic peroxide diversion compounds and phenol resin cross-linking agents are particularly preferred.
- organic peroxides include 1,3 bis (t-butylperoxyisopropyl) benzene, 2,5 dimethyl-2,5 bis (t-butylperoxy) hexine 3,2,5 — Dimethyl-2,5-bis (t-butylperoxy) hexene 3,2,5 dimethyl-2,5bis (t-butylperoxy) hexane, 2,2'bis (t-butylperoxy) p-isopropylbenzene, dicumylperoxide, di-t-butylperoxide, t-butylperoxide, p-menthamperoxide, 1,1-bis (t (Butylperoxy) -3,3,5-trimethylcyclohexane, dilauroylperoxide, diacetylbaroxide, t-butylperoxybenzoate, 2,4-dichlorobenzoylperoxide, p-chlorobenzoyl
- organic peroxides can be used alone or in combination of two or more.
- a cross-linking reaction can be gently performed by using a cross-linking auxiliary agent, and particularly uniform cross-linking can be formed.
- a crosslinking aid include, for example, sulfur such as powdered sulfur, colloidal sulfur, precipitated sulfur, insoluble sulfur, surface-treated sulfur, sulfur such as dipentamethylenethiuram tetrasulfide, and sulfur-containing compounds; Oxim compounds such as quinone oxime and p, p'-dibenzoylquinone oxime; ethylene glycol di (meth) acrylate, diethylene glycol di (meth) phthalate, triethylene glycol di (meth) acrylate, tetraethylene glycol di (Metal) atalylate, 1,4 butanediol di (meth) atalylate, 1, 6 xanediol di (meth) atalylate, 1, 9-nonanediol di (
- ⁇ , ⁇ '-dibenzoylquinone oxime, ⁇ , N'-m-phenyl-bismaleimide, trimethylolpropane tri (meth) atalylate, and dibutylbenzene are preferred.
- N, N'-m-phenyl-bismaleimide has an action as a cross-linking agent, and thus can be used as a cross-linking agent.
- the amount used is 0.05 to 10 parts by weight based on 100 parts by weight of the total of the components (A) and (B). More preferably, it is 0.1-5 parts by weight. If the amount of the organic peroxide is less than 0.05 parts by weight, the resulting thermoplastic elastomer composition has a low degree of crosslinking, and the desired rubber elasticity and mechanical strength are obtained. Can be difficult. On the other hand, if the amount of the organic peroxide used exceeds 10 parts by weight, the obtained thermoplastic elastomer composition has an excessively high degree of crosslinking, and the moldability of the thermoplastic elastomer composition becomes poor. It tends to decrease or mechanical properties decrease.
- the amount of the crosslinking aid used is preferably 10 parts by weight or less based on 100 parts by weight of the total of the components (A) and (B). More preferably, it is 0.2-5 parts by weight. If the amount of the crosslinking aid exceeds 10 parts by weight, the resulting thermoplastic elastomer composition will have an excessively high degree of crosslinking, and the moldability of the thermoplastic elastomer composition will decrease. And the mechanical properties tend to decrease.
- phenolic crosslinking agent examples include, for example, a p-substituted phenolic compound represented by the following general formula (2), an o-substituted phenol-aldehyde condensate, and an m-substituted phenol-aldehyde Condensates, brominated alkylphenol-aldehyde condensates, and the like can be used, and among them, p-substituted phenol compounds are preferable.
- This p-substituted phenol-based compound is reacted with a p-substituted phenol and an aldehyde (preferably phenol) in the presence of an alkali catalyst.
- C obtained by a condensation reaction with
- n is an integer of 0-10
- X is each independently a hydroxyl group, a halogenated alkyl group or a halogen atom
- R is each independently And represents a saturated hydrocarbon group having 11 to 15 carbon atoms.
- the phenolic crosslinking agent can be used alone, but a crosslinking accelerator can be used in combination to adjust the crosslinking speed.
- the crosslinking accelerator include metal halides such as stannous chloride and ferric chloride, and organic halides such as chlorinated polypropylene, bromobutyl rubber, and chloroprene rubber. It is more preferable to use a dispersing agent such as a metal oxidizing agent such as zinc oxide and stearic acid in addition to the crosslinking accelerator.
- a phenolic crosslinking agent When a phenolic crosslinking agent is used as the crosslinking agent, its amount is preferably 0.2 to 10 parts by weight based on 100 parts by weight of the total of the components (A) and (B). More preferably, it is 0.5 to 5 parts by weight. If the amount of the phenolic crosslinking agent used is less than 0.2 parts by weight, the resulting thermoplastic elastomer composition will have a low degree of crosslinking, and the desired rubber elasticity and mechanical strength will be obtained. Can be difficult. On the other hand, when the phenolic crosslinking agent exceeds 10 parts by weight, the obtained thermoplastic elastomer composition has an excessively high degree of crosslinking, and the moldability of the thermoplastic elastomer composition is reduced. Or the mechanical properties tend to decrease.
- the dynamic heat treatment is performed, for example, to prepare or process a resin or an elastomer. It can be performed using a commonly used melt kneading apparatus.
- the “dynamic heat treatment” refers to a treatment for performing both a treatment for applying a shearing force and a heating treatment.
- the melt kneading apparatus may be a batch type or a continuous type.
- Specific examples of the melt-kneading apparatus include batch-type melt-kneading apparatuses such as open-type mixing rolls, non-open-type Banbury mixers, and pressure kneaders, single-screw extruders, and co-rotating continuous twin-screw extruders.
- a continuous melt kneading apparatus such as a twin-screw extruder and a twin-screw kneader.
- the continuous extruder used for the dynamic heat treatment is not particularly limited as long as each component can be melt-kneaded.
- the ratio of the effective length L to the outer diameter D of the screw LZD is preferably 20 or more, more preferably 30 or more, and particularly preferably 36-80.
- a twin-screw extruder for example, a screw having various specifications such as a screw in which two screws mesh with each other or a screw in which no screws mesh with each other can be used.
- a co-rotating continuous twin-screw extruder, in which two screws engage each other, is more preferable.
- Such twin-screw extruders include "PCM” manufactured by Ikegai, "KTX” manufactured by Kobe Steel, " ⁇ ” manufactured by Japan Steel Works, “ ⁇ ” manufactured by Toshiba Machinery Co., Ltd. “ZSK” and others.
- the ratio LZD between the effective length L and the outer diameter D of the screw is 5 or more, more preferably 10 or more.
- a twin-screw kneader for example, a screw having various specifications such as a screw in which two screws are engaged and a screw in which the screws are not engaged can be used. It is more preferable to use an anisotropically rotating type in which two screws engage with each other.
- the kneading section of the twin-screw kneader is preferably a rotor-shaped kneading disk rather than a kneading disk.
- twin-screw kneader examples include ⁇ Mixtron KTX, '' ⁇ Mixtron LCM, '' ⁇ Mixtron NCM, '' manufactured by Kobe Steel, and ⁇ CIM, '' ⁇ CMP '' manufactured by Japan Steel Works, Ltd.
- two or more continuous extruders described above may be connected and used.
- a different-direction rotary twin-screw kneader and a second extruder may be used as the first continuous extruder.
- a co-rotating twin screw extruder may be used in combination as a continuous extruder.
- the specific processing conditions of the dynamic heat treatment vary depending on the type of the resin, the type of the elastomer used, the type of the melt-kneading apparatus, and the like.
- the processing temperature is preferably 120 to 350 ° C.
- the temperature is preferably from 150 to 290 ° C.
- the treatment time is preferably from 20 seconds to 120 minutes, more preferably from 30 seconds to 30 minutes.
- the shearing force applied to the mixture is preferably a shear rate of 10-20, OOO / sec, a force S, and more preferably 100-10,000 / sec.
- thermoplastic elastomer composition of the present invention has a durometer A hardness of, for example, 10 to 99, preferably 20 to 95, and a tensile strength at break of, for example, 1.OMPa or more, preferably Since it is 3.OMPa or more, it has the same mechanical properties as the conventional thermoplastic elastomer composition, and also has excellent heat resistance and oil resistance, as will be apparent from Examples described later. .
- the molded article of the present invention can be produced by molding the above-mentioned thermoplastic elastomer composition.However, the production step and the molding step of the thermoplastic elastomer composition are performed in a single step. Thus, the components (A) and (B) constituting the thermoplastic elastomer composition and other components used as necessary can be directly produced.
- the molding method of the thermoplastic elastomer composition is not particularly limited, and conventionally known molding methods such as an extrusion molding method, a calender molding method, a solvent casting method, an injection molding method, a vacuum molding method, a powder slush molding method, and the like.
- the heating press method can be suitably used.
- the molded article of the present invention can be used for rubber, plastic, thermoplastic elastomer, thermoplastic elastomer composition other than the thermoplastic elastomer composition of the present invention, glass, metal, cloth or wood. They may be laminated or joined.
- the rubber includes ethylene ' ⁇ -olefin copolymer rubber and its anhydrous maleic copolymer rubber.
- Acid graft polymer ethylene ' ⁇ -olefin' non-conjugated gen copolymer rubber, styrene 'butadiene rubber, nickel catalyzed butadiene rubber, isoprene rubber, nitrile rubber and its hydrogenated products, atarinore rubber, silicone rubber, fluorine Rubber, butinore rubber, natural rubber, and the like.
- plastics include ionomers, aminoacrylamide polymers, polyethylene and its maleic anhydride graft polymer, polyisobutylene, ethylene chloride vinyl polymer, ethylene butyl alcohol polymer, ethylene butyl acetate copolymer, polyethylene oxide, Ethylene acrylic acid copolymer, polypropylene and its maleic anhydride graft polymer, polyisobutylene and its maleic anhydride grafted polymer, chlorinated polypropylene, 4-methylpentene 1 resin, polystyrene, ABS resin, ACS resin, AS Resin, AES resin, ASA resin, MBS resin, acrylic resin, methacrylic resin, chlorinated vinyl resin, Shiridani vinylidene resin, polycarbonate, acrylic resin, methacrylic resin, butyl chloride resin, Vinylidene chloride resin, Buralco Resin, buracetal resin, methyl methacrylate resin, fluororesin, polyether resin, polyethylene terephthalate, poly
- thermoplastic elastomers include chlorinated polyethylene-based thermoplastic elastomers, syndiotactic 1,2-polybutadiene, simple blend type olefin-based thermoplastic elastomers, implant-type olefin-based thermoplastic elastomers, and dynamically cross-linked olefin-based thermoplastics.
- plastic elastomer poly-Shi-Dan-Bull thermoplastic elastomer, polyurethane-based thermoplastic elastomer, polyester-based thermoplastic elastomer, polyamide-based thermoplastic elastomer 1, fluorine-based thermoplastic elastomer, styrene'butadiene rubber Product, maleic anhydride graft polymer of styrene 'butadiene rubber hydrogenated product, hydrogenated product of butadiene rubber, maleic anhydride graft polymer of hydrogenated butadiene rubber, hydrogenated product of isoprene rubber, water of isoprene rubber Additive of maleic anhydride Graft polymer, hydrogenated styrene 'isoprene rubber, grafted maleic anhydride of styrene' isoprene rubber, hydrogenated styrene; butadiene block copolymer, styrene 'isoprene
- metals include stainless steel, aluminum, iron, copper, nickel, zinc, lead, tin, and alloys such as nickel-zinc alloy, iron-zinc alloy, lead-tin alloy used in automobiles, ships, and home appliances. No.
- the molded article of the present invention has excellent heat resistance and oil resistance, it can be used for automobile bumpers, exterior moldings, wind seal gaskets, door seal gaskets, trunk seal gaskets, roof side rails, Interior and exterior skin materials such as emblems, inner panels, door trims, and console boxes; seat cushions for automobiles and motorcycles such as weather strips; leather seats that require scratch resistance; sealing materials for aircraft and ships; and interior and exterior skins Sealing materials for materials, civil engineering and construction, sealing materials for interior / exterior skins or waterproof sheets, sealing materials for general machinery and equipment, knocking of capacitors and weak electrical components, water tank sealants, sealing materials for fuel cell stacks Rolls, cleaning blades, and electronic parts for information devices, such as materials, skin materials, and housings Film, protective film for flat panel display (FPD) manufacturing processes such as semiconductors and liquid crystal display devices, sealing material for electronic components such as hard disk gaskets, image protective film for photographs, etc., decorative film for building materials, medical equipment It is useful as a material for general parts such as parts, electric wire
- Polyamide resin (A-1) Nylon 12 (Ube Industries, Ltd., product name "Nylon3035U”)
- the content of structural units derived from ethylene is 73.7 mol%
- the content of structural units derived from propylene is 24.6 mol%
- the content of structural units derived from 5-ethylidene-2 norbornene is Content 1.4 mole 0/0, 8-methyl-8 Cal Bokishi tetracyclo [4. 4. 0. I 2 '5 . 1 7,10] -3- content of structural units derived from dodecene 0.3
- a specific functional group-containing copolymer having a weight average molecular weight (Mw) of 15.6 ⁇ 10 4 in mol%.
- the content of structural units derived from ethylene is 77.4 mol%, content of 21.8 mol% of structural units derived from propylene, 5-Echiriden 2 content force of the structural unit derived from norbornene SO mole 0/0, 5 —Methyl-5 carboxy-bicyclo [2.2.1] — Specific functional groups with a content of structural units derived from 2 heptene of 0.8 mol% and a weight average molecular weight (Mw) of 13.1 X 10 4 Containing copolymer.
- Anti-aging agent (E-1) 4,4,1-bis ( ⁇ , ⁇ -dimethylbenzyl) diphenamine (Ouchi Shinko Chemical Co., Ltd., product name “Nocrack CD”).
- Cross-linking agent (F-1) 2,5 dimethyl-2,5-di (t-butylperoxy) hexane (trade name "Perhexa 25B-40" manufactured by NOF Corporation)
- the resulting mixture is mixed and the resulting mixture is fed into a co-rotating continuous twin-screw extruder (Model “PCM-45”, manufactured by Ikegai Co., Ltd.).
- a co-rotating continuous twin-screw extruder Model “PCM-45”, manufactured by Ikegai Co., Ltd.
- LZD 33.5
- the cylinder temperature is 230 ° C
- the screw rotation speed is 300 rpm
- the shear speed is 400 sec.
- a dynamic heat treatment was performed under the condition that the time was 90 seconds, and granulation was performed to obtain a dynamically crosslinked thermoplastic elastomer composition in the form of pellets.
- thermoplastic elastomer composition pellets are injection-molded using an injection molding machine (manufactured by Nippon Steel Works, product name "N-100") to have a thickness of 2 mm, a width of 120 mm and a width of 120 mm. A 120 mm sheet was produced.
- thermoplastic elastomer composition Using a sheet of the obtained thermoplastic elastomer composition, a du-meter A hardness as an index of flexibility, a tensile strength at break and a tensile elongation at break as an index of mechanical strength, an air heat aging test as an index of heat resistance, An immersion test using IRM903 oil was performed by the following method as an index of oil resistance. The results are shown in Table 1.
- Air heat aging test Aged at aging temperature of 150 ° C and aging time of 72 hours, 168 hours, 500 hours and 1000 hours in accordance with JIS-K6257, then tensile breaking strength, tensile The elongation at break and durometer A hardness were measured.
- each component was charged into a 10 L double-armed pressurizer (manufactured by Moriyama) heated to 230 ° C, and kneaded at 40 rpm for 20 minutes (shear speed 200 s— Thereafter, the obtained kneaded mass in a molten state was pelletized by a feeder-ruder (manufactured by Moriyama Co., Ltd.) set at 180 ° C. and 40 rpm to obtain a kneaded mass. Each of the obtained kneaded materials was subjected to dynamic heat treatment in the same manner as in Example 1 to prepare a pellet-like dynamic crosslinkable thermoplastic elastomer composition.
- each of the obtained pellets of the thermoplastic elastomer composition was injection-molded to form a sheet, and the sheet of the thermoplastic elastomer composition was evaluated.
- thermoplastic elastomers according to Examples 1 and 2 It was confirmed that one composition had excellent mechanical properties, heat resistance and oil resistance.
- Comparative Example 1 since the polyamide resin (A-1) and the polymer compound (D-1) were not compatible, it was difficult to prepare a composition.
- the composition according to Comparative Example 2 had low heat resistance and low oil resistance.
- thermoplastic elastomer composition of the present invention has excellent heat resistance and oil resistance, and has excellent heat resistance, oil resistance, automobile bumper, exterior molding, wind seal gasket, door seal gasket, trunk seal gasket, roof side rail, and roof side rail.
- Interior and exterior skin materials such as emblems, inner panels, door trims and console boxes, weather strips, etc., seat cushions for automobiles and motorcycles, leather seats that require scratch resistance, sealing materials for aircraft and ships, and interior and exterior skins
- Sealing materials for general machinery and equipment such as sealing materials for civil engineering and construction, interior and exterior skin materials, and waterproof sheets, packing for capacitors and weak electrical components, water tank sealants, and sealing materials for fuel cell stacks
- Rolls and cleaning brushes for information equipment such as Protective films for the manufacturing process of flat panel displays (FPD) such as semiconductors and liquid crystal displays, sealing materials for electronic components such as hard disk gaskets, image protective films such as photographs, decorative films for construction materials, medical equipment It is useful as a material for general machined products such as equipment parts for electric wires, wire
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Abstract
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US10/584,493 US20070276092A1 (en) | 2003-12-25 | 2004-12-02 | Thermoplastic Elastomer Composition, Method for Producing Same and Formed Article |
EP04820881A EP1698661A4 (en) | 2003-12-25 | 2004-12-02 | THERMOPLASTIC ELASTOMER COMPOSITION, METHOD OF MANUFACTURE AND ARTICLE THUS OBTAINED |
JP2005516558A JPWO2005063876A1 (ja) | 2003-12-25 | 2004-12-02 | 熱可塑性エラストマー組成物およびその製造方法並びに成形品 |
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- 2004-12-02 CN CNA2004800386730A patent/CN1906246A/zh active Pending
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JP2007211059A (ja) * | 2006-02-07 | 2007-08-23 | Jsr Corp | 熱可塑性エラストマー組成物 |
JP2007254568A (ja) * | 2006-03-23 | 2007-10-04 | Toray Ind Inc | スポーツ用品 |
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US10385202B2 (en) | 2007-12-20 | 2019-08-20 | Kuraray Co., Ltd. | Thermoplastic polymer composition and shaped article composed of the same |
JP2013501094A (ja) * | 2009-07-30 | 2013-01-10 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | ポリヒドロキシポリマーを含む熱老化耐性ポリアミド組成物 |
WO2011125796A1 (ja) * | 2010-03-31 | 2011-10-13 | 株式会社クラレ | 熱可塑性重合体組成物およびそれからなる成形体 |
JPWO2011125796A1 (ja) * | 2010-03-31 | 2013-07-08 | 株式会社クラレ | 熱可塑性重合体組成物およびそれからなる成形体 |
US9056976B2 (en) | 2010-03-31 | 2015-06-16 | Kuraray Co., Ltd. | Thermoplastic polymer composition and moldings thereof |
JP5779578B2 (ja) * | 2010-03-31 | 2015-09-16 | 株式会社クラレ | 熱可塑性重合体組成物およびそれからなる成形体 |
WO2012014757A1 (ja) * | 2010-07-29 | 2012-02-02 | 株式会社クラレ | 熱可塑性重合体組成物および成形品 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005063876A1 (ja) | 2007-07-19 |
EP1698661A1 (en) | 2006-09-06 |
US20070276092A1 (en) | 2007-11-29 |
CN1906246A (zh) | 2007-01-31 |
KR20060120224A (ko) | 2006-11-24 |
EP1698661A4 (en) | 2008-02-20 |
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