WO2018051870A1 - 熱可塑性樹脂組成物およびその成形体 - Google Patents
熱可塑性樹脂組成物およびその成形体 Download PDFInfo
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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
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
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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
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
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- the present invention is a thermoplastic resin composition containing a methacrylic polymer (A), an epoxy group-containing polymer (B), and crosslinked rubber particles (C). According to the present invention, it is possible to provide a thermoplastic resin composition capable of obtaining a molded article excellent in solvent resistance while maintaining high hardness and suppressing warping during molding, and a molded article thereof. it can.
- the molded body containing the thermoplastic resin composition is used as a substitute product for pottery and metal products in various fields because it is lightweight and has a high degree of freedom in product design.
- it has been used for toiletries such as toilet bowls, kitchen sinks, toilets, and bathtubs.
- Water-related products are prone to cracking on the surface due to the adhesion of various chemicals such as cosmetics and detergents in a wet environment. Therefore, even if chemicals adhere in an environment wet with water, it is required that the surface does not easily crack (hereinafter referred to as solvent resistance).
- Patent Document 1 a resin composition containing a methacrylic resin, a light shielding additive, and a rubbery copolymer, and a thermoplastic resin molded article for sanitary ware replacement have been reported.
- thermoplastic resin molded article for sanitary ware replacement described in Patent Document 1 has high hardness, it is not always satisfactory in terms of the solvent resistance. Further, when the resin composition described in Patent Document 1 is molded, warpage is likely to occur, and it may be difficult to mold into a desired shape. Therefore, an object of the present invention is to provide a thermoplastic resin composition capable of obtaining a molded article excellent in solvent resistance while maintaining high hardness and suppressing warping during molding, and the molded article. Is to provide.
- the present inventors have intensively studied and found that the present invention can solve the above problems. That is, the present invention is as follows.
- the epoxy group-containing polymer (B) further includes a monomer unit derived from a (meth) acrylic acid alkyl ester, and the content of the monomer unit derived from the (meth) acrylic acid alkyl ester is Derived from a monomer unit derived from a (meth) acrylic acid ester containing an epoxy group, and at least one monomer selected from the group consisting of ethylene, an ⁇ -olefin having 3 or more carbon atoms, and styrene
- the thermoplastic resin composition according to [1] which is 0.1 to 50 parts by mass with respect to 100 parts by mass in total with the monomer units to be produced.
- [4] A watering article containing the molded article according to [3].
- thermoplastic resin composition capable of obtaining a molded article excellent in solvent resistance while maintaining high hardness, and capable of suppressing warpage during molding, and the molded article. be able to.
- the present embodiment a mode for carrying out the present invention (hereinafter referred to as “the present embodiment”) will be described in detail.
- the following embodiments are examples for explaining the present invention, and are not intended to limit the present invention to the following contents.
- the present invention can be appropriately modified within the scope of the gist.
- a structural unit derived from the monomer (X) and constituting the polymer may be referred to as a “monomer unit derived from the monomer (X)”.
- a monomer unit derived from methyl methacrylate is referred to as a “methyl methacrylate monomer unit”, or a monomer unit derived from an alkyl acrylate ester is referred to as “alkyl acrylate”. It may be abbreviated as “ester monomer unit”.
- the numerical range “Y to Z” represents “Y or more and Z or less”
- (meth) acrylic acid represents methacrylic acid or acrylic acid.
- the (meth) acrylic acid alkyl ester is a compound represented by CH 2 ⁇ CHCOOR (R is an alkyl group) or CH 2 ⁇ C (CH 3 ) COOR (R is an alkyl group).
- the methacrylic polymer (A) is a polymer containing 85 to 100% by mass of methyl methacrylate monomer units. In addition, it differs from the below-mentioned crosslinked rubber particle (C).
- Examples of the methacrylic polymer (A) include a homopolymer consisting only of a methyl methacrylate monomer unit, a methyl methacrylate monomer unit, and a (meth) acrylic acid alkyl ester monomer unit other than methyl methacrylate.
- a copolymer composed of a methyl methacrylate monomer unit and a (meth) acrylic acid alkyl ester monomer unit other than the methyl methacrylate monomer unit is preferable. These may be used alone or in combination of two or more.
- Examples of (meth) acrylic acid alkyl esters other than the above methyl methacrylate include methyl acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, n-butyl (meth) acrylate, and (meth) acrylic acid.
- sec-butyl, 2-ethylhexyl (meth) acrylate, and the like and methyl acrylate, ethyl (meth) acrylate, or n-butyl (meth) acrylate is preferred, and methyl acrylate or ethyl (meth) acrylate Is more preferable.
- the methacrylic polymer (A) may be a polymer having one (meth) acrylic acid alkyl ester monomer unit other than the above methyl methacrylate monomer unit, or may be a polymer having two or more types. .
- the methacrylic polymer (A) is a “methyl methacrylate- (meth) acrylic acid alkyl ester copolymer having different types of (meth) acrylic acid alkyl ester monomer units other than the above methyl methacrylate monomer units”. May be a mixture containing two or more.
- the content of the methyl methacrylate monomer unit is 85 to 100% by mass, preferably 87 to 99.5% by mass, and more preferably 89 to 99% by mass.
- the content of the (meth) acrylic acid alkyl ester monomer unit other than the methyl methacrylate monomer unit is 0 to 15% by mass, preferably 0.5 to 13% by mass, and 1 to 11% by mass. Is more preferable.
- the total amount of the (meth) acrylic acid alkyl ester monomer unit and the methyl methacrylate monomer unit other than the methyl methacrylate monomer unit is 100% by mass.
- Molded product excellent in heat resistance and mechanical strength by adjusting the content of methyl methacrylate and the content of (meth) acrylic acid alkyl ester monomer units other than the above methyl methacrylate monomer units within the above ranges. Can be obtained.
- the content of the methacrylic polymer (A) is obtained by reprecipitation of a soluble component (hereinafter referred to as an acetone soluble part) when the thermoplastic resin composition of the present embodiment is dissolved in acetone. It can be determined by weighing.
- the content of the methyl methacrylate monomer unit in the methacrylic polymer (A) and the content of the (meth) acrylic acid alkyl ester monomer unit other than the methyl methacrylate monomer unit are determined by the acetone-soluble part. It can be determined by analysis using pyrolysis gas chromatography or the like.
- the polymerization method for obtaining the methacrylic polymer (A) is not particularly limited, and examples thereof include suspension polymerization, emulsion polymerization, bulk polymerization, and solution polymerization.
- a commercially available product can be used for the methacrylic polymer (A).
- “SUMIPEX” manufactured by Sumitomo Chemical Co., Ltd., “Acrypet” manufactured by Mitsubishi Rayon Co., Ltd., “Parapet” manufactured by Kuraray Co., Ltd., Asahi Kasei Co., Ltd. "Delpet” made by the company etc. is mentioned.
- the melt flow rate (MFR) of the methacrylic polymer (A) is preferably 0.5 to 25 g / 10 minutes, and more preferably 1 to 8 g / 10 minutes.
- the MFR is measured at a measurement temperature of 230 ° C. and a load of 37.3 N based on JIS K 7218. If MFR of a methacryl polymer (A) is said range, the molded object which is more excellent in solvent resistance can be obtained, and the curvature at the time of shaping
- the epoxy group-containing polymer (B) has an epoxy group-containing (meth) acrylic acid ester monomer unit (hereinafter referred to as monomer unit (b1)) of 1 to 50% by mass, ethylene, and carbon number. 50 to 99% by mass of a monomer unit derived from at least one monomer selected from the group consisting of three or more ⁇ -olefins and styrene (hereinafter referred to as monomer unit (b2)).
- the polymer is preferably a polymer further comprising a (meth) acrylic acid alkyl ester monomer unit (hereinafter referred to as monomer unit (b3)).
- the monomer unit (b3) is a monomer unit not containing an epoxy group.
- the ⁇ -olefin is an olefin having a carbon-carbon double bond at the ⁇ -position.
- Examples of the (meth) acrylic acid ester having an epoxy group in the monomer unit (b1) include glycidyl (meth) acrylate, (meth) acrylic acid [(3,4-epoxycyclohexane) -1-yl] methyl, (Meth) acrylic acid-3,4-epoxybutyl, (meth) acrylic acid-6,7-epoxyheptyl and the like can be mentioned, and glycidyl (meth) acrylate is preferred.
- the epoxy group-containing polymer (B) may be a polymer having one type of monomer unit (b1) or a polymer having two or more types, and the types of monomer units (b1) may be mutually different. A mixture containing two or more different polymers may be used. By containing the monomer unit (b1), it is possible to obtain a molded article having more excellent solvent resistance.
- the content of the monomer unit (b1) is 1 to 50% by mass, preferably 1 to 30% by mass, and more preferably 1 to 20% by mass. However, the total amount of the monomer units of the monomer unit (b1) and the monomer unit (b2) is 100% by mass.
- content of a monomer unit (b1) can be calculated
- Examples of the ⁇ -olefin having 3 or more carbon atoms in the monomer unit (b2) include propylene, 1-butene, 1-hexene and 1-octene, and propylene is preferred.
- the monomer in the monomer unit (b2) is preferably ethylene or propylene, more preferably ethylene.
- the epoxy group-containing polymer (B) may be a polymer having one type of monomer unit (b2) or a polymer having two or more types, and the types of monomer units (b2) may be mutually different. A mixture containing two or more different polymers may be used.
- the content of the monomer unit (b2) is 50 to 99% by mass, preferably 70 to 99% by mass, and more preferably 80 to 99% by mass. However, the total amount of the monomer units derived from the monomer unit (b1) and the monomer unit (b2) is 100% by mass. In addition, content of a monomer unit (b2) can be calculated
- Examples of the (meth) acrylic acid alkyl ester in the monomer unit (b3) include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, n-butyl (meth) acrylate, Examples thereof include sec-butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, methyl (meth) acrylate or ethyl (meth) acrylate is preferred, and methyl (meth) acrylate is more preferred.
- the epoxy group-containing polymer (B) may be a polymer having one type of monomer unit (b3) or a polymer having two or more types, and the types of monomer units (b3) may be mutually different. A mixture containing two or more different polymers may be used.
- the content of the monomer unit (b3) is preferably 0.1 to 50 parts by mass, The amount is more preferably 1 to 45 parts by mass, still more preferably 3 to 40 parts by mass. However, the total amount of the monomer unit (b1) and the monomer unit (b2) is 100 parts by mass. When the content of the monomer unit (b3) is in the above range, a molded article having more excellent solvent resistance can be obtained.
- the polymerization method for obtaining the epoxy group-containing polymer (B) is not particularly limited, and examples thereof include high-pressure radical polymerization, solution polymerization, and emulsion polymerization. Further, (meth) acrylic acid ester containing an epoxy group is kneaded with a polymer having a monomer unit (b2) such as polyethylene, polypropylene, polystyrene, ethylene- ⁇ -olefin copolymer, styrene copolymer, etc. Or the method of carrying out graft polymerization by melt-kneading is also mentioned.
- a commercially available product may be used as the epoxy group-containing polymer (B), for example, “Bond First” manufactured by Sumitomo Chemical Co., Ltd. may be used.
- content of the epoxy group containing polymer (B) contained in a thermoplastic resin composition it is 0.1 to 100 mass parts with respect to 100 mass parts of methacrylic polymer (A), Preferably It is 0.3 mass part or more and 50 mass parts or less, More preferably, it is 0.5 mass part or more and 20 mass parts or less.
- the content of the epoxy group-containing polymer (B) is dissolved in toluene among components insoluble (hereinafter referred to as acetone-insoluble portion) when the thermoplastic resin composition of the present embodiment is dissolved in acetone. It can be determined by weighing the re-precipitated soluble component (hereinafter referred to as “toluene-soluble portion in the acetone-insoluble portion”).
- the content of the monomer unit (b1), the content of the monomer unit (b2), and the content of the monomer unit (b3) in the epoxy group-containing polymer (B) are as follows. It can be determined by analyzing the toluene soluble part using NMR or the like.
- the crosslinked rubber particles (C) are derived from at least one monomer selected from the group consisting of (meth) acrylic acid alkyl ester, butadiene, isoprene, chloroprene, styrene, ⁇ -alkylstyrene, acrylonitrile, and methacrylonitrile.
- a rubber particle comprising a resin having a monomer unit and a polyfunctional monomer unit derived from a polyfunctional monomer having two or more carbon-carbon double bonds.
- Examples of the (meth) acrylic acid alkyl ester include methyl (meth) acrylate, ethyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, sec-butyl (meth) acrylate. , Isobutyl (meth) acrylate, t-butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, cyclohexyl (meth) acrylate, and the like.
- Examples of ⁇ -alkylstyrene include ⁇ -methylstyrene and t-butylstyrene.
- polyfunctional monomer having two or more carbon-carbon double bonds examples include diallyl maleate, allyl (meth) acrylate, divinylbenzene, trivinylbenzene, alkylene glycol di (meth) acrylate, triallyl isocyanate And polyethylene glycol di (meth) acrylate. These may be used alone or in combination of two or more.
- the crosslinked rubber particles (C) may be single-layer rubber particles or multilayer rubber particles.
- Three or more organic rubber particles each having one or more soft layers and one hard layer have an innermost layer 4, an intermediate layer 3, and an outermost layer 2 in order from the center of the particle toward the outer side, as shown in FIG. A structure is preferred.
- the innermost layer is a layer existing at the center of the particle
- the outermost layer is a layer existing away from the center of the particle.
- the intermediate layer is a layer existing between the innermost layer and the outermost layer, and may have two or more layers.
- the innermost layer and the outermost layer may be a soft layer or a hard layer
- the intermediate layer may be a soft layer or a hard layer, It may be a laminate of hard layers.
- the structure of the organic rubber particle having three or more layers for example, in order from the center of the particle toward the outside, soft layer-hard layer-soft layer-hard layer, soft layer-hard layer-hard layer, soft layer-soft layer -Hard layer, hard layer-soft layer-hard layer, hard layer-hard layer-soft layer-hard layer, hard layer-soft layer-hard layer-structure having hard layer, etc., preferably the center of the particle
- a three-layer structure having a hard layer-soft layer-hard layer, a hard layer-hard layer-soft layer-a four-layer structure having a hard layer, or a hard layer-soft layer-hard layer-hard layer Is a four-layer structure.
- the organic rubber particles having three or more layers are preferably organic rubber particles having a three-layer structure in which the innermost layer and the outermost layer are hard layers and the intermediate layer is a soft layer.
- the innermost layer and the outermost layer are hard layers, the deformation of the organic rubber particles tends to be suppressed, and when the intermediate layer is a soft layer, the toughness of the organic rubber particles tends to be improved.
- the monomer units contained in the resin contained in the hard layer include the above-mentioned polyfunctional monomer units, methyl methacrylate monomer units, ethyl methacrylate monomer units, n-propyl methacrylate monomer units, methacrylic monomer units.
- Isopropyl acid monomer unit n-butyl methacrylate monomer unit, sec-butyl methacrylate monomer unit, t-butyl methacrylate monomer unit, 2-ethylhexyl methacrylate monomer unit, methacrylic acid
- examples thereof include an acid cyclohexyl monomer unit, an ⁇ -methylstyrene monomer unit, a t-butylstyrene monomer unit, an acrylonitrile monomer unit, and a methacrylonitrile monomer unit. These may contain only 1 type, or may be used 2 or more types.
- the above-mentioned polyfunctional monomer unit and the methyl methacrylate monomer unit or ethyl methacrylate are preferably used as the monomer unit contained in the resin contained in the hard layer. It is a monomer unit.
- the content of the polyfunctional monomer unit contained in the hard layer formed as the innermost layer is preferably 0.0001% by mass or more and 10% by mass or less. However, the total amount of all monomer units contained in the resin of the hard layer formed as the innermost layer is 100% by mass.
- the monomer unit contained in the resin contained in the hard layer is preferably a methyl methacrylate monomer unit or an ethyl methacrylate monomer unit.
- the monomer unit contained in the resin contained in the soft layer has a carbon number of 4 such as the above-mentioned polyfunctional monomer unit, n-butyl acrylate monomer unit, 2-ethylhexyl acrylate monomer unit, etc.
- a carbon number of 4 such as the above-mentioned polyfunctional monomer unit, n-butyl acrylate monomer unit, 2-ethylhexyl acrylate monomer unit, etc.
- the polyfunctional monomer unit has 4 to 11 carbon atoms.
- the content of the crosslinked rubber particles (C) contained in the thermoplastic resin composition is 0.001 part by mass or more and 25 parts by mass or less with respect to 100 parts by mass of the methacrylic polymer (A), preferably 0.5. It is not less than 24 parts by mass and more preferably not less than 1 part by mass and not more than 23 parts by mass, and more preferably not less than 7 parts by mass and not more than 23 parts by mass.
- the content of the crosslinked rubber particles (C) is a component insoluble in the acetone-insoluble portion of the thermoplastic resin composition of the present embodiment (hereinafter, the toluene-insoluble portion in the acetone-insoluble portion). Can be determined by weighing. In the case of a thermoplastic resin composition containing an inorganic substance, the content of the crosslinked rubber particles (C) is reduced by removing the amount of ash determined based on JIS K7250-1 from the amount of the toluene insoluble part in the acetone insoluble part. Can be sought.
- the method for producing the crosslinked rubber particles (C) is not particularly limited, and examples thereof include a method described in JP-A-55-27576.
- the thermoplastic resin composition of the present embodiment is a composition containing a methacrylic polymer (A), an epoxy group-containing polymer (B), and crosslinked rubber particles (C).
- the thermoplastic resin composition of this embodiment contains an acetone insoluble part.
- the acetone-insoluble part of the thermoplastic resin composition is preferably 5 parts by mass or more and 25 parts by mass or less, and more preferably 6 parts by mass or more and 24 parts by mass or less with respect to 100 parts by mass of the thermoplastic resin composition. Preferably, it is 7 mass parts or more and 23 mass parts or less.
- the thermoplastic resin composition of the present embodiment may contain an additive as long as the object of the present invention is not impaired.
- the additive include an antioxidant, an ultraviolet absorber, an inorganic filler, a colorant, a flame retardant, and the like, and it is preferable to add an antioxidant, an ultraviolet absorber, an inorganic filler, and a colorant.
- antioxidant A hindered phenolic antioxidant and phosphorus antioxidant are mentioned. Specifically, pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 6- [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) Propoxy] -2,4,8,10-tetra-t-butyldibenzo [d, f] [1,3,2] dioxaphosphine, tris phosphite (2,4-di-tert-butylphenyl) ), Thiodiethylenebis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, octadecyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, N, N′-hexane-1,6-diylbis [3- (3,5-
- Pentaerythritol terakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, or 6- [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) Propoxy] -2,4,8,10-tetra-t-butyldibenzo [d, f] [1,3,2] dioxaphosphine is preferable, and these may be used alone or in combination of two or more. Also good.
- content of antioxidant Preferably it is 0.0001 mass part or more and 5 mass parts or less with respect to 100 mass parts of methacrylic polymer (A), More preferably, it is 0.001 mass part or more and 1 mass part or less. is there.
- the ultraviolet absorber is not particularly limited.
- 2,2′-methylenebis [6- (2H-benzotriazol-2-yl) -4- (1,1,3,3-tetramethylbutyl) is used.
- These may be used alone or in combination of two or more.
- a ultraviolet absorber Preferably it is 0.0001 mass part or more and 5 mass parts or less with respect to 100 mass parts of methacrylic polymers (A), More preferably, it is 0.001 mass part or more and 1 mass part or less. is there.
- the inorganic filler is not particularly limited.
- These inorganic fillers may be appropriately subjected to surface treatment. These inorganic fillers may be used alone or in combination of two or more.
- content of an inorganic filler Preferably it is 0.0001 mass part or more and 30 mass parts or less with respect to 100 mass parts of methacrylic polymer (A), More preferably, it is 0.001 mass part or more and 10 mass parts or less. is there.
- the colorant is not particularly limited.
- a coloring agent Preferably it is 0.0001 mass part or more and 5 mass parts or less with respect to 100 mass parts of methacrylic polymers (A), More preferably, it is 0.001 mass part or more and 1 mass part or less. .
- a flame retardant for example, a cyclic nitrogen compound, a phosphorus flame retardant, a silicon flame retardant, a cage silsesquioxane or its partial cleavage structure, a silica flame retardant, etc. are mentioned. . These may be used alone or in combination of two or more.
- content of a flame retardant Preferably it is 0.0001 mass part or more and 5 mass parts or less with respect to 100 mass parts of methacrylic polymers (A), More preferably, it is 0.001 mass part or more and 1 mass part or less. .
- thermoplastic resin composition of the present embodiment contains a resin other than the methacrylic polymer (A), the epoxy group-containing polymer (B), and the crosslinked rubber particles (C) as long as the object of the present invention is not impaired. Also good.
- these resins include polypropylene, polyethylene, polystyrene, ABS resin (acrylonitrile-butadiene-styrene copolymer), AS resin (acrylonitrile-styrene copolymer), BAAS resin (butadiene-acrylonitrile-acrylonitrile rubber-styrene copolymer).
- MBS resin methyl methacrylate-butadiene-styrene copolymer
- AAS resin acrylonitrile-acrylonitrile rubber-styrene copolymer
- polylactic acid polycarbonate, polybutylene terephthalate, polyethylene terephthalate, polypropylene terephthalate, polytrimethylene terephthalate
- Polyalkylene arylate resins such as polyethylene naphthalate, polytetrafluoroethylene (tetrafluoroethylene resin, PT E), ethylene trifluoride chloride resin (PCTFE), tetrafluoroethylene hexafluoride ethylene propylene resin (PFEP), vinyl fluoride resin (PVF), vinylidene fluoride resin (PVDF), difluoroethylene dichloride resin Tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene-hexafluoropropylene cop
- the fluidity of the thermoplastic resin composition can be improved by containing AS resin or BAAS resin, and the impact resistance of the molded body can be improved by containing ABS resin or MBS resin.
- AS resin or BAAS resin By containing a polyester resin, the solvent resistance of the molded body can be improved, and by containing a fluororesin or silicone resin, the antifouling effect on the surface of the molded body can be improved.
- These resins may be used alone or in combination of two or more.
- the content of these resins is preferably 0.0001 to 50 parts by mass, more preferably 0.001 to 30 parts by mass, with respect to 100 parts by mass of the methacrylic polymer (A). is there.
- the molded product containing the thermoplastic resin composition of the present embodiment includes the methacrylic polymer (A), the epoxy group-containing polymer (B), and the crosslinked rubber particles (C), and additives as appropriate. It is obtained by kneading with another resin to obtain a thermoplastic resin composition and molding it into a desired shape.
- mixing method For example, the method of kneading
- the kneading temperature may be in accordance with the preferred processing temperature of the raw materials to be mixed, but is preferably 140 to 300 ° C, more preferably 180 to 280 ° C.
- the molding method of the molded body of the present embodiment is not particularly limited, and examples thereof include a method of molding in a molten state such as injection molding, sheet molding, blow molding, injection blow molding, inflation molding, T-die molding, press molding, and extrusion molding.
- secondary processing molding methods such as pressure forming and vacuum forming can also be applied.
- Applications of the molded body of the present embodiment are not limited to the following, but include, for example, toilet bowls, kitchen sinks, toilet bowls, watering supplies such as bathtubs, housing applications such as lighting, side visors, glazings, and meters. Covers, headlamp covers, tail lamp covers, vehicle parts such as pillars, automobile parts, building materials such as sound insulation walls and windows, tableware, suitcases, smartphone covers, miscellaneous goods such as cosmetics fixtures, amusement uses such as pachinko face plates , Billboards and the like can be mentioned, and water-related supplies are preferred.
- a water-related article is an article used in a place where water is used.
- Level ++ indicates the highest solvent resistance, and level-indicates the lowest solvent resistance.
- Level ++ indicates the highest solvent resistance, and level-indicates the lowest solvent resistance.
- the distance from the ground at the four corners when the test plate molded above was placed on a flat ground was measured as the amount of warpage.
- five test plates were measured, and an average value of warpage amount + (3 ⁇ standard deviation) was calculated. It shows that curvature is suppressed, so that the calculated value is small.
- Pencil hardness was measured based on JIS K 5600-5-4. What is 2H or more has excellent hardness.
- the innermost layer contains 94.0% by mass, 5.8% by mass, and 0.2% by mass of methyl methacrylate, methyl acrylate, and allyl methacrylate by emulsion polymerization.
- the copolymer was polymerized at a ratio of 81.5% by mass, 16.5% by mass, and 2.0% by mass of n-butyl acrylate, styrene, and allyl methacrylate, respectively.
- the polymer and the outermost layer are made of a copolymer obtained by polymerizing methyl methacrylate and methyl acrylate at a ratio of 94.5% by mass and 5.5% by mass, respectively, and the ratio of the innermost layer, the intermediate layer, and the outermost layer is 35.
- Cross-linked rubber particles C1 having mass%, 45 mass%, and 20 mass% were obtained.
- methacrylic polymer A1 obtained by polymerizing 33% by mass of methyl methacrylate and 90% by mass of 10% by mass with respect to 67% by mass of C1 and C1 in a latex state After mixing, salting out was performed to obtain a mixture D1 of crosslinked rubber particles C1 and methacrylic polymer A1.
- epoxy group-containing polymer B1 "bond first BF-7M" (Sumitomo Chemical Co., Ltd.) (glycidyl methacrylate monomer unit: 6% by mass, ethylene monomer unit: 67% by mass, methyl acrylate monomer unit: 27) Mass%) was used.
- A2 and B1 and D1 were mixed at a ratio of 1.2 parts by weight of B1 and 118.9 parts by weight of C1 with respect to a total of 100 parts by weight of A1 and A2.
- Example 2 to 7 Pellets were obtained in the same manner as in Example 1 except that the ratio of B1 and C1 was changed to the ratio shown in Table 1 with respect to 100 parts by mass of A1 and A2. Using the obtained pellets, solvent resistance, warpage and hardness were evaluated. The evaluation results are shown in Table 2.
- Example 8 As an epoxy group-containing polymer B2 instead of B1, Sumitomo Chemical "bond first BF-7L" (glycidyl methacrylate monomer unit: 3 mass%, ethylene monomer unit: 70 mass%, methyl acrylate single monomer) Pellets were obtained in the same manner as in Example 7 except that the body unit was 27 mass%. Using the obtained pellets, solvent resistance, warpage and hardness were evaluated. The evaluation results are shown in Table 2.
- Example 9 Except for using “bond first BF-2C” manufactured by Sumitomo Chemical (glycidyl methacrylate monomer unit: 6 mass%, ethylene monomer unit: 94 mass%) as the epoxy group-containing polymer B3 instead of B1. Pellets were obtained in the same manner as in Example 7. Using the obtained pellets, solvent resistance, warpage and hardness were evaluated. The evaluation results are shown in Table 2.
- Example 10 Except for using “bond first BF-E” manufactured by Sumitomo Chemical (glycidyl methacrylate monomer unit: 12 mass%, ethylene monomer unit: 88 mass%) as the epoxy group-containing polymer B4 instead of B1. Pellets were obtained in the same manner as in Example 7. Using the obtained pellets, solvent resistance, warpage and hardness were evaluated. The evaluation results are shown in Table 2.
- Comparative Examples 1 and 4 have a solvent resistance level of-, which is inferior in solvent resistance, Comparative Example 2 has a lower hardness than Example, and Comparative Example 3 was carried out. It can be seen that the value of the warp is smaller than the example, and the warp during molding cannot be suppressed.
- Example 11 In a polymerization reactor equipped with a stirrer, a mixture of 96 parts by weight of methyl methacrylate and 4 parts by weight of methyl acrylate, 0.017 parts by weight of 1,1-di (t-butylperoxy) cyclohexane, and n-octyl Mercaptan (0.27 parts by mass) was continuously fed, and the polymerization reaction was carried out at 255 ° C. and an average residence time of 43 minutes.
- a pellet was obtained in the same manner as in Example 4 except that A3 was used instead of A2. Using the obtained pellets, solvent resistance, warpage and hardness were evaluated. As a result, the solvent dropping test was Y, the solvent resistance repeated test was the first time, and the solvent resistance level was +. Further, the warpage was 1.5, the injection pressure was 228 MPa, and the pencil hardness was 2H.
- Comparative Example 5 In place of B1, Sumitomo Chemical's “Acrylift WK307” (ethylene monomer unit: 75% by mass, methyl methacrylate monomer unit: 25% by mass) was used in the same manner as in Example 7 to obtain pellets. Obtained. Using the obtained pellets, solvent resistance, warpage and hardness were evaluated. As a result, the solvent resistance drop test was X, the solvent resistance repeat test was the ninth, and the solvent resistance level was-. Further, the warpage was 1.5, the injection pressure was 227 MPa, and the pencil hardness was 2H. From these results, it was found that Comparative Example 5 had poor solvent resistance.
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Abstract
Description
そこで、本発明の目的は、高い硬度を維持しつつ、耐溶剤性に優れる成形体を得ることができ、且つ成形時の反りを抑制することができる熱可塑性樹脂組成物、およびその成形体を提供することである。
エポキシ基を含有する(メタ)アクリル酸エステルに由来する単量体単位を1~50質量%と、エチレン、炭素数3以上のα-オレフィン、およびスチレンからなる群から選ばれる少なくとも一種の単量体に由来する単量体単位を50~99質量%とを含むエポキシ基含有重合体(B)0.1質量部以上100質量部以下と、
(メタ)アクリル酸アルキルエステル、ブタジエン、イソプレン、クロロプレン、スチレン、α-アルキルスチレン、アクリロニトリル、およびメタクリロニトリルからなる群から選ばれる少なくとも一種の単量体に由来する単量体単位と、炭素-炭素二重結合を二つ以上有する多官能単量体に由来する多官能単量体単位とを有する樹脂を含む架橋ゴム粒子(C)0.01質量部以上25質量部以下とを含有する熱可塑性樹脂組成物。
[2]エポキシ基含有重合体(B)が、さらに(メタ)アクリル酸アルキルエステルに由来する単量体単位を含み、前記(メタ)アクリル酸アルキルエステルに由来する単量体単位の含有量が、前記エポキシ基を含有する(メタ)アクリル酸エステルに由来する単量体単位と、前記エチレン、炭素数3以上のα-オレフィン、およびスチレンからなる群から選ばれる少なくとも一種の単量体に由来する単量体単位との合計量100質量部に対して、0.1~50質量部である前記[1]に記載の熱可塑性樹脂組成物。
[3]前記[1]または[2]に記載の熱可塑性樹脂組成物を含有する成形体。
[4]前記[3]に記載の成形体を含有する水回り用品。
なお、本明細書において、単量体(X)に由来し、重合体を構成する構成単位のことを「単量体(X)に由来する単量体単位」と表記することがある。また、さらに略記して、例えば、メタクリル酸メチルに由来する単量体単位を「メタクリル酸メチル単量体単位」と表記したり、アクリル酸アルキルエステルに由来する単量体単位を「アクリル酸アルキルエステル単量体単位」と略記したりすることもある。また、本明細書において、特段の言及が無い限り、数値範囲「Y~Z」とは「Y以上Z以下」を表し、(メタ)アクリル酸とは、メタクリル酸またはアクリル酸を表す。また、(メタ)アクリル酸アルキルエステルとは、CH2=CHCOOR(Rがアルキル基)またはCH2=C(CH3)COOR(Rがアルキル基)で表される化合物である。
メタクリル重合体(A)は、メタクリル酸メチル単量体単位85~100質量%を含有する重合体である。なお、後述の架橋ゴム粒子(C)とは異なるものである。
メタクリル重合体(A)のMFRが上記の範囲であれば、より耐溶剤性に優れる成形体を得ることができ、成形時の反りをより抑制することができる。
エポキシ基含有重合体(B)は、エポキシ基を含有する(メタ)アクリル酸エステル単量体単位(以下、単量体単位(b1)と称する。)1~50質量%と、エチレン、炭素数3以上のα-オレフィン、およびスチレンからなる群から選ばれる少なくとも一種の単量体に由来する単量体単位(以下、単量体単位(b2)と称する。)50~99質量%とを含む重合体であり、耐溶剤性の観点から、好ましくは、さらに(メタ)アクリル酸アルキルエステル単量体単位(以下、単量体単位(b3)と称する。)を含む重合体である。ここで、単量体単位(b3)は、エポキシ基を含有しない単量体単位である。なお、α-オレフィンとは、α位に炭素-炭素二重結合を有するオレフィンである。
単量体単位(b1)の含有量が、上記の範囲であると、耐溶剤性がより優れる成形体を得ることができる。
単量体単位(b2)の含有量が、上記の範囲であると、耐溶剤性がより優れる成形体を得ることができる。
エポキシ基含有重合体(B)中の単量体単位(b1)の含有量、単量体単位(b2)の含有量、および単量体単位(b3)の含有量は、アセトン不溶部中のトルエン可溶部をNMRなどを利用して分析することによって求めることができる。
架橋ゴム粒子(C)は、(メタ)アクリル酸アルキルエステル、ブタジエン、イソプレン、クロロプレン、スチレン、α-アルキルスチレン、アクリロニトリル、およびメタクリロニトリルからなる群から選ばれる少なくとも一種の単量体に由来する単量体単位と、炭素-炭素二重結合を二つ以上有する多官能単量体に由来する多官能単量体単位とを有する樹脂を含むゴム粒子である。
α-アルキルスチレンとしては、例えば、α-メチルスチレン、t-ブチルスチレン等が挙げられる。
三層以上の有機ゴム粒子として、好ましくは、最内層および最外層が硬質層であり、中間層が軟質層である三層構造の有機ゴム粒子である。最内層と最外層が硬質層であることにより、有機ゴム粒子の変形が抑制される傾向にあり、中間層が軟質層であることにより、有機ゴム粒子の靭性が向上する傾向にある。
最内層として硬質層が形成される場合、該硬質層に含まれる樹脂が有する単量体単位として好ましくは、上記多官能性単量体単位、および、メタクリル酸メチル単量体単位またはメタクリル酸エチル単量体単位である。最内層として形成される硬質層に含まれる上記多官能単量体単位の含有量は、好ましくは0.0001質量%以上10質量%以下である。ただし、最内層として形成される硬質層の樹脂が有する全単量体単位の合計量を100質量%とする。最外層として硬質層が形成される場合、該硬質層に含まれる樹脂が有する単量体単位として、好ましくは、メタクリル酸メチル単量体単位またはメタクリル酸エチル単量体単位である。
本実施形態の熱可塑性樹脂組成物は、アセトン不溶部を含有する。熱可塑性樹脂組成物のアセトン不溶部は、熱可塑性樹脂組成物100質量部に対して、5質量部以上25質量部以下であることが好ましく、6質量部以上24質量部以下であることがより好ましく、7質量部以上23質量部以下であることがさらに好ましい。アセトン不溶部が上記の範囲であると、耐溶剤性と硬度がより優れる成形体を得ることができる。
酸化防止剤の含有量として、好ましくはメタクリル重合体(A)100質量部に対して、0.0001質量部以上5質量部以下であり、より好ましくは0.001質量部以上1質量部以下である。
紫外線吸収剤の含有量として、好ましくはメタクリル重合体(A)100質量部に対して、0.0001質量部以上5質量部以下であり、より好ましくは0.001質量部以上1質量部以下である。
無機充填剤の含有量として、好ましくはメタクリル重合体(A)100質量部に対して、0.0001質量部以上30質量部以下であり、より好ましくは0.001質量部以上10質量部以下である。
着色剤の含有量として、好ましくはメタクリル重合体(A)100質量部に対して、0.0001質量部以上5質量部以下であり、より好ましくは0.001質量部以上1質量部以下である。
難燃剤の含有量として、好ましくはメタクリル重合体(A)100質量部に対して、0.0001質量部以上5質量部以下であり、より好ましくは0.001質量部以上1質量部以下である。
これらの樹脂の含有量として、好ましくはメタクリル重合体(A)100質量部に対して、0.0001質量部以上50質量部以下であり、より好ましくは0.001質量部以上30質量部以下である。
混練方法としては、特に限定されないが、例えば、押出機、加熱ロール、ニーダー、ローラミキサー、バンバリーミキサー等の混練機を用いて混練する方法が挙げられる。押出機による混練が、生産性の面で好ましい。混練温度は、混合する原料の好ましい加工温度に従えばよいが、140~300℃が好ましく、180~280℃がより好ましい。
(1)耐溶剤性の測定
下記条件で射出成形を行い、90mm幅×150mm長×5mm厚の平板を用意した。
(成形条件)
成形機:ファナック社製AUTOSHOT 150D(スクリュー径:44mm)
シリンダー温度(ノズル側から順に):255/260/250/235/220℃
射出速度:40mm/秒
保圧:800kg/cm2,10秒
金型温度:60℃
冷却時間:60秒
上記で用意した平板をパネルソーにより、幅方向が均等になるように切断して二枚の試験板に加工した後、73℃の水に120時間浸した。その後、表面の水分を拭き取り、温度23℃/湿度55%の部屋で2時間静置した後、試験板表面にエタノールを滴下して、表面を観察し、以下のように評価した。
X:表面にクラックが入った
Y:表面にクラックが無かった。
上記で用意した平板を73℃の水に48時間浸した。その後、表面の水分を拭き取り、温度23℃/湿度55%の雰囲気下で72時間静置した。その後、試験板表面にエタノールを2mL含ませた紙ウエス(日本製紙クレシア製、キムワイプS-200(登録商標)、大きさ:120mm×215mm)を被せて30分間静置し、平板を貫通するクラックの有無を確認した。クラックが無い場合は、再度エタノールを2mL含ませた紙ウエス(日本製紙クレシア製、キムワイプS-200(登録商標)、大きさ:120mm×215mm)を被せて30分間静置した後に平板を貫通するクラックの有無を確認した。これを繰り返し、何回目の試験で平板を貫通するクラックが生じるかを観察した。
<耐溶剤性のレベル>
++:耐溶剤性滴下試験の結果がY、耐溶剤性繰返し試験の結果が2回目以上
+:耐溶剤性滴下試験の結果がY、耐溶剤性繰返し試験の結果が1回目
-:耐溶剤性滴下試験の結果がX
下記条件で射出成形を行い、90mm幅×150mm長×3mm厚の平板を用意した。
(成形条件)
成形機:ファナック(株)社製AUTOSHOT 150D(スクリュー径:44mm)
シリンダー温度(ノズル側から順に):255/260/250/235/220℃
射出速度:50mm/秒
保圧:800kg/cm2,10秒
金型温度:60℃
冷却時間:20秒
下記条件で2mm厚のスパイラル流動長が750mm以上760mm以下になるようにスクリュー位置を調節して、射出成形を行い、最大射出圧を測定した
成形機:東洋機械金属(株)社製Si-180V(スクリュー径:28mm)
シリンダー温度(ノズル側から順に):250/245/240/230/220℃
射出速度:500mm/秒
保圧:50kg/cm2,10秒
金型温度:65℃
冷却時間:45秒
JIS K 5600-5-4に基づき鉛筆硬度を測定した。2H以上であるものが硬度に優れる。
JIS K 7210に基づき、測定温度が230℃、荷重が37.3Nにおいて、MFRを測定した。
特公昭55-27576号公報記載の方法に基づき、乳化重合により、最内層がメタクリル酸メチル、アクリル酸メチル、メタクリル酸アリルをそれぞれ94.0質量%、5.8質量%、0.2質量%の割合で重合させた共重合体、中間層がアクリル酸n-ブチル、スチレン、メタクリル酸アリルをそれぞれ81.5質量%、16.5質量%、2.0質量%の割合で重合させた共重合体、最外層がメタクリル酸メチルとアクリル酸メチルをそれぞれ94.5質量%、5.5質量%の割合で重合させた共重合体からなり、最内層、中間層、最外層の割合が35質量%、45質量%、20質量%である架橋ゴム粒子C1を得た。C1のブロッキングを防止するため、67質量%のC1に対して33質量%のメタクリル酸メチルとアクリル酸メチルを90質量%と10質量%の割合で重合したメタクリル重合体A1をラテックス状態でC1と混合し、その後塩析し、架橋ゴム粒子C1とメタクリル重合体A1との混合物D1を得た。
A1とA2の合計100質量部に対して、B1と、C1の割合を表1記載の割合とした以外は実施例1と同様の方法でペレットを得た。得られたペレットを用いて、耐溶剤性、反りおよび硬度の評価を行った。評価結果を表2に示す。
A1とA2の合計100質量部に対して、B1と、C1の割合を表1記載の割合とした以外は実施例1と同様の方法でペレットを得た。得られたペレットを用いて、耐溶剤性、反りおよび硬度の評価を行った。評価結果を表2に示す。
B1の代わりにエポキシ基含有重合体B2として、住友化学製“ボンドファースト BF-7L”(メタクリル酸グリシジル単量体単位:3質量%、エチレン単量体単位:70質量%、アクリル酸メチル単量体単位:27質量%)を用いた以外は実施例7と同様の方法でペレットを得た。得られたペレットを用いて、耐溶剤性、反りおよび硬度の評価を行った。評価結果を表2に示す。
B1の代わりにエポキシ基含有重合体B3として、住友化学製“ボンドファースト BF-2C”(メタクリル酸グリシジル単量体単位:6質量%、エチレン単量体単位:94質量%)を用いた以外は実施例7と同様の方法でペレットを得た。得られたペレットを用いて、耐溶剤性、反りおよび硬度の評価を行った。評価結果を表2に示す。
B1の代わりにエポキシ基含有重合体B4として、住友化学製“ボンドファースト BF-E”(メタクリル酸グリシジル単量体単位:12質量%、エチレン単量体単位:88質量%)を用いた以外は実施例7と同様の方法でペレットを得た。得られたペレットを用いて、耐溶剤性、反りおよび硬度の評価を行った。評価結果を表2に示す。
攪拌器を備えた重合反応器に、メタクリル酸メチル96質量部及びアクリル酸メチル4質量部の混合物と、1,1-ジ(t-ブチルパーオキシ)シクロヘキサン0.017質量部と、n-オクチルメルカプタン0.27質量部とを、それぞれ連続的に供給し、255℃、平均滞留時間43分で重合反応を行った。次いで、重合反応器から出る反応液(部分重合体)を予熱した後、脱揮押出機に供給し、未反応の単量体成分を気化して回収するとともに、ペレット状のメタクリル重合体A3を得た。
A3のMFRは11g/10分だった。
B1の代わりに、住友化学製“アクリフト WK307”(エチレン単量体単位:75質量%、メタクリル酸メチル単量体単位:25質量%)を用いた以外は実施例7と同様の方法でペレットを得た。得られたペレットを用いて、耐溶剤性、反りおよび硬度の評価を行った。その結果、耐溶剤滴下試験はX、耐溶剤性繰返し試験は9回目であり、耐溶剤性レベルは-であった。また、反りは1.5、射出圧は227MPa、鉛筆硬度は2Hだった。これらの結果より、比較例5は耐溶剤性が劣ることが分かった。
Claims (4)
- メタクリル酸メチルに由来する単量体単位85~100質量%を含有するメタクリル重合体(A)100質量部と、
エポキシ基を含有する(メタ)アクリル酸エステルに由来する単量体単位を1~50質量%と、エチレン、炭素数3以上のα-オレフィン、およびスチレンからなる群から選ばれる少なくとも一種の単量体に由来する単量体単位を50~99質量%とを含むエポキシ基含有重合体(B)0.1質量部以上100質量部以下と、
(メタ)アクリル酸アルキルエステル、ブタジエン、イソプレン、クロロプレン、スチレン、α-アルキルスチレン、アクリロニトリル、およびメタクリロニトリルからなる群から選ばれる少なくとも一種の単量体に由来する単量体単位と、炭素-炭素二重結合を二つ以上有する多官能単量体に由来する多官能単量体単位とを有する樹脂を含む架橋ゴム粒子(C)0.01質量部以上25質量部以下とを含有する熱可塑性樹脂組成物。 - エポキシ基含有重合体(B)が、さらに(メタ)アクリル酸アルキルエステルに由来する単量体単位を含み、前記(メタ)アクリル酸アルキルエステルに由来する単量体単位の含有量が、前記エポキシ基を含有する(メタ)アクリル酸エステルに由来する単量体単位と、前記エチレン、炭素数3以上のα-オレフィン、およびスチレンからなる群から選ばれる少なくとも一種の単量体に由来する単量体単位との合計量100質量部に対して、0.1~50質量部である請求項1に記載の熱可塑性樹脂組成物。
- 請求項1または2に記載の熱可塑性樹脂組成物を含有する成形体。
- 請求項3に記載の成形体を含有する水回り用品。
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PCT/JP2017/032206 WO2018051870A1 (ja) | 2016-09-16 | 2017-09-07 | 熱可塑性樹脂組成物およびその成形体 |
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KR (1) | KR102268483B1 (ja) |
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JPH0790126A (ja) * | 1993-09-24 | 1995-04-04 | Japan Synthetic Rubber Co Ltd | 熱可塑性樹脂組成物 |
WO2007069493A1 (ja) * | 2005-12-12 | 2007-06-21 | Kaneka Corporation | 重合体粒子、及びその製造方法、並びに、その重合体粒子を含む樹脂組成物、及び成形体 |
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JPS5958048A (ja) * | 1982-09-28 | 1984-04-03 | Toray Ind Inc | メタクリル樹脂組成物 |
JP3111487B2 (ja) * | 1991-03-14 | 2000-11-20 | 住友化学工業株式会社 | メタアクリル樹脂組成物 |
JP3603402B2 (ja) * | 1995-08-25 | 2004-12-22 | 住友化学株式会社 | メタクリル酸メチル系樹脂組成物 |
JP3508454B2 (ja) * | 1997-03-19 | 2004-03-22 | 住友化学工業株式会社 | メタクリル酸メチル系樹脂およびその成形体 |
JPH11167782A (ja) * | 1997-10-02 | 1999-06-22 | Sony Corp | 記録媒体カートリッジ |
JPH11116782A (ja) * | 1997-10-21 | 1999-04-27 | Kanegafuchi Chem Ind Co Ltd | 熱可塑性樹脂組成物 |
JP3378485B2 (ja) * | 1997-11-28 | 2003-02-17 | 住友化学工業株式会社 | メタクリル酸メチル系樹脂射出成形体 |
JP2001200141A (ja) * | 2000-01-18 | 2001-07-24 | Nippon Zeon Co Ltd | 脂環式オレフィン重合体組成物および複合粒子 |
JP3636199B1 (ja) * | 2004-03-23 | 2005-04-06 | 東洋紡績株式会社 | ポリスルホン系選択透過性中空糸膜束とその製造方法および血液浄化器 |
US20150284558A1 (en) * | 2012-11-06 | 2015-10-08 | Mitsubishi Rayon Co., Ltd. | Method for producing (meth)acrylic resin composition, method for producing (meth)acrylic resin shaped article, (meth)acrylic resin shaped article, front-surface plate for liquid crystal display device, and touch panel |
JP6543026B2 (ja) * | 2014-05-09 | 2019-07-10 | 旭化成株式会社 | 衛生陶器代替用熱可塑性樹脂成形体 |
JP6407270B2 (ja) * | 2014-05-30 | 2018-10-17 | 株式会社クラレ | メタクリル樹脂組成物 |
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- 2017-09-07 WO PCT/JP2017/032206 patent/WO2018051870A1/ja active Application Filing
- 2017-09-07 CN CN201780056699.5A patent/CN109715726B/zh active Active
- 2017-09-07 JP JP2018539655A patent/JP7103223B2/ja active Active
- 2017-09-12 TW TW106131108A patent/TWI735648B/zh active
Patent Citations (2)
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JPH0790126A (ja) * | 1993-09-24 | 1995-04-04 | Japan Synthetic Rubber Co Ltd | 熱可塑性樹脂組成物 |
WO2007069493A1 (ja) * | 2005-12-12 | 2007-06-21 | Kaneka Corporation | 重合体粒子、及びその製造方法、並びに、その重合体粒子を含む樹脂組成物、及び成形体 |
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KR102268483B1 (ko) | 2021-06-22 |
TW201817798A (zh) | 2018-05-16 |
JP7103223B2 (ja) | 2022-07-20 |
TWI735648B (zh) | 2021-08-11 |
CN109715726B (zh) | 2021-01-08 |
KR20190055065A (ko) | 2019-05-22 |
JPWO2018051870A1 (ja) | 2019-06-27 |
CN109715726A (zh) | 2019-05-03 |
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