Abstract: A thermoplastic resin composition comprising: a graft copolymer (A) obtained by polymerizing a vinyl monomer mixture (m1) in the presence of a specific alkyl (meth)acrylate rubbery polymer (a); a graft copolymer (B) obtained by polymerizing a vinyl monomer mixture (m2) in the presence of a specific alkyl (meth)acrylate rubbery polymer (b); and a vinyl copolymer (C) obtained by polymerizing a vinyl monomer mixture (m3), wherein: a proportion of a rubbery polymer contained in the thermoplastic resin composition is 21 to 28% by mass, and a proportion of particles with a particle size of 300 nm or more among all particles formed by the rubbery polymer is 1 to 11% by mass.

Abstract: A thermoplastic resin composition comprising a graft copolymer (A), a vinyl copolymer (B), and a metal component (C), wherein: an amount of the metal component (C) is 60 ppm or more relative to a total mass of the thermoplastic resin composition, the graft copolymer (A) is a graft polymer obtained by polymerizing 80% by mass to 20% by mass of a vinyl monomer mixture (m1) including at least one type of vinyl monomer in the presence of 20% by mass to 80% by mass of a rubbery polymer (a) including a polyorganosiloxane and an alkyl (meth)acrylate polymer, the vinyl copolymer (B) is a vinyl copolymer obtained by polymerizing a vinyl monomer mixture (m2) including an alkyl (meth)acrylate monomer. and the metal component (C) is an alkali metal.

Abstract: The thermoplastic resin composition of the invention includes: 10% to 70% by mass of (A) a rubber-reinforced vinyl-based resin containing a rubbery part derived from an acrylic rubbery polymer and a resin pan having a structural unit derived from an aromatic vinyl compound and a structural unit derived from a cyanidated vinyl compound; 5% to 80% by mass of (B) a (meth)acrylic resin (excluding component (A)) including a (co)polymer which has a structural unit derived from an alkyl (meth)acrylate ester compound and which does not have a structural unit derived from ?-methylstyrene; and 5% to 70% by mass of (C) an ?-methylstyrene-based resin (excluding component (A)) containing a (co)polymer which has a structural unit derived from ?-methylstyrene and which does not have a structural unit derived from an alkyl (meth)acrylate ester compound based on 100% by mass of a total content of components (A) to (C).

Abstract: A thermoplastic resin composition includes a rubber-reinforced styrenic thermoplastic resin (A1) in an amount of 97 to 80 parts by mass); and a hitting sound reducing material (B) in an amount of 3 to 20 parts by mass. The hitting sound reducing material (B) is a hydrogenated copolymer derived from hydrogenation of a copolymer formed of a block portion (I) primarily including structural units derived from an aromatic vinyl-based compound, and a random portion (II) primarily including structural units derived from an aromatic vinyl-based compound and primarily including structural units derived from butadiene. The structural units in the block portion (I) and the structural units derived from an aromatic vinyl-based compound in the random portion (II) are present in 55 to 80 mass % relative to a 100 total mass % of the copolymer, and the hydrogenated copolymer has a primary dispersion peak of tan ? at 0° C. or greater.

Abstract: A graft copolymer (B) produced by graft polymerization of a vinyl monomer mixture (m1) including an alkyl (meth)acrylate ester onto a copolymer (A), the copolymer (A) being a copolymer of an alkyl (meth)acrylate ester (Aa) and a (meth)acrylate ester (Ab) including an aromatic hydrocarbon group. A thermoplastic resin composition including the graft copolymer (B), a copolymer (C) that is the product of a polymerization reaction of a vinyl monomer mixture (m2) including an alkyl (meth)acrylate ester, and a molded article produced by molding the thermoplastic resin composition. Provided are the graft copolymer with which a thermoplastic resin composition excellent in terms of transparency, impact resistance, weather resistance, and flowability may be produced, a thermoplastic resin composition including the graft copolymer, and the molded article produced by molding the thermoplastic resin composition.

Abstract: A thermoplastic resin composition includes a resin component (A) in an amount of 97 to 80 parts by mass; and a hitting sound reducing material (B) in an amount of 3 to 20 parts by mass. The hitting sound reducing material (B) is a hydrogenated copolymer derived from hydrogenation of a copolymer formed of a block portion (I) primarily including structural units derived from an aromatic vinyl-based compound, and a random portion (II) primarily including structural units derived from an aromatic vinyl-based compound and derived from butadiene. The structural units derived from an aromatic vinyl-based compound in the block portion (I) and derived from an aromatic vinyl-based compound in the random portion (II) are present in a total content of 55 to 80 mass % relative to a 100 total mass % of the copolymer, and the hydrogenated copolymer has a primary dispersion peak of tan ? at 0° C. or greater.

Abstract: A thermoplastic resin composition including 7% to 64% by mass of rubber-containing graft copolymer (A), 2% to 35% by mass of thermoplastic elastomer (B), 0.5% to 90% by mass of another thermoplastic resin (C), and 0.5% to 20% by mass of inorganic compound (D) (total (A)-(D) is 100% by mass). The copolymer (A) is a graft copolymer in which 35 to 80 parts by mass of rubber-like polymer (a1) is graft-polymerized with 20 to 65 parts by mass of vinyl-based monomer mixture (a2) containing an aromatic-vinyl-based monomer and a vinyl-cyanide-based monomer. The content of polymer (a1) in the total 100% by mass of the components (A)-(D) is 2% to 35% by mass, and a difference between the content of the polymer (a1) in the total 100% by mass of the component (A) to the component (D) and the content of the elastomer (B) is within 15% by mass.

Abstract: A thermoplastic resin composition including a graft copolymer (B) produced by graft polymerization of a vinyl monomer mixture (m1) including an alkyl (meth)acrylate ester, a vinyl cyanide compound, and an aromatic vinyl compound onto a copolymer (A) produced by copolymerizing an alkyl (meth)acrylate ester (a) and a (meth)acrylate ester (b) including an aromatic hydrocarbon group at a specific ratio and a copolymer (C) that is a product of a polymerization reaction of a vinyl monomer mixture (m2) including an alkyl (meth)acrylate ester. The graft copolymer (B) includes at least a graft copolymer (B) having a specific volume-average particle size. The copolymer (A) has a specific volume-average particle size and a specific particle size distribution.

Abstract: The resin composition for plating of the present invention includes: a graft copolymer (A) in which a monomer component (a) including specific amounts of an aromatic vinyl compound (a1), a vinyl cyanide compound (a2), and another vinyl compound (a3) is graft-polymerized on a rubbery polymer; and a polycarbonate resin (P), wherein an amount of resin (P) is 40 to 70% by mass, based on a total mass of the resin composition, a rubber content (X) in copolymer (A) is more than 40% by mass, based on a total mass of copolymer (A), a graft ratio (Y) of copolymer (A) satisfies formula (1): 793e?0.041X?Y?515e?0.041X (1), and a rubber content (Z) in the resin composition is 10 to 18% by mass, based on a total mass of the resin composition.

Abstract: The coating resin composition contains a thermoplastic resin including (A) a rubber-reinforced vinyl-based resin having a rubbery portion derived from a rubbery polymer and a resin portion having a structural unit derived from an aromatic vinyl compound and (B) an olefin-based resin modified with a polar functional group containing an oxygen atom. The composition may further contain a polycarbonate resin.

Abstract: A thermoplastic resin composition that can provide molded articles that are not only highly rigid but also inhibited from generating hitting sound is provided, which has a bending modulus of 1850 MPa or higher as measured in accordance with ISO 178 and has a maximum sound pressure value of 2.0 Pa/N or lower as determined over a range of 20-20,000 Hz based on a frequency spectrum of sound pressure obtained by striking the center of one surface of a test piece with a force of 20±5 N using a stainless steel hammer, and collecting a sound generated at this moment using a sound pressure microphone placed at a distance of 12 cm perpendicularly from the above surface, the test piece being an integrally molded article having a rectangular main body that is 120 mm long, 60 mm wide and 3 mm thick and is provided with an upper end thereof with a trapezoidal protrusion that has a 20 mm upper base and a 40 mm lower base, is 8 mm tall and 1.5 mm thick, and being suspended by two strings taped to the protrusion.

Abstract: The platability improver of the present invention comprises heterophasic-polymer particles having a coefficient of variation in particle diameter of 40%-90%. It is preferable that the proportion of polymer particles each having a particle diameter of 0.05 ?m or larger be 80% by volume or more with respect to all the heterophasic-polymer particles and the proportion of polymer particles each having a particle diameter of 0.05 ?m or larger but smaller than 0.15 ?m be 10%-60% by volume with respect to all the heterophasic-polymer particles.

Abstract: A method for producing a rubbery polymer includes a step of preparing a mixture containing an alkyl (meth)acrylate, a hydrophobe, and an emulsifier, wherein an amount of the hydrophobe is 0.1-10 parts by mass relative to 100 parts by mass of the alkyl (meth)acrylate, and an amount of emulsifier is 0.01-1.0 part by mass relative to 100 parts by mass of the alkyl (meth)acrylate; a step of applying a shear force to the mixture to prepare a pre-emulsion, and a step of heating the pre-emulsion to polymerize the resulting mixture by miniemulsion polymerization.

Abstract: A graft copolymer (B-III) includes a rubbery polymer (A-III) that is a miniemulsion polymerization reaction product of an alkyl (meth)acrylate; and at least one monomer selected from aromatic vinyl compounds, (meth)acrylic acid esters, and vinyl cyanide compounds graft-polymerized onto the rubbery polymer (A-III).

Abstract: Provided is a rubbery polymer (A) including a unit of a crosslinking agent (I) represented by Formula (I) below and a unit of a (meth)acrylate ester (a). The volume-average particle size (X), the frequency upper limit 10%-volume particle size (Y), and the frequency lower limit 10%-volume particle size (Z) of the rubbery polymer (A) satisfy specific relationships. Also provided are a graft copolymer (B) produced by graft polymerization of one or more selected from an aromatic vinyl and a vinyl cyanide onto the rubbery polymer (A), a thermoplastic resin composition including the graft copolymer (B), and a molded article produced by molding the thermoplastic resin composition.

Abstract: The present invention provides a thermoplastic resin composition in which occurrence of an absorption phenomenon in a coating step can be suppressed and which is excellent in terms of impact resistance, heat resistance, and fluidity during a molding step; a coated article; and a molded resin article obtained by molding the thermoplastic resin composition. The thermoplastic resin composition contains: 35 to 75 parts by mass of an aromatic polycarbonate resin (A); 15 to 35 parts by mass of a rubber-containing graft copolymer (B) obtained by copolymerizing a monomer mixture comprising an aromatic vinyl compound and a vinyl cyanide compound in the presence of a rubbery polymer; and 10 to 50 parts by mass of a rigid copolymer mixture (C) containing a rigid copolymer (C-I) and a rigid copolymer (C-II), in which in the rigid copolymer mixture (C), an amount of the rigid copolymer (C-II) is 20% to 80% by mass in the mixture.

Abstract: A graft copolymer has good moldability and good continuous moldability, and a thermoplastic resin molded article having excellent impact resistance can be produced. A method can produce the graft copolymer. A graft copolymer (B-I) produced by grafting at least one vinyl monomer (b-I) selected from the group consisting of an aromatic vinyl, an alkyl (meth)acrylate, and a vinyl cyanide to a rubbery polymer mixture including a rubbery polymer (A-I) and a hydrophobic substance, the rubbery polymer (A-I) including an alkyl (meth)acrylate unit and a multifunctional monomer unit copolymerizable with the alkyl (meth)acrylate, the hydrophobic substance having a kinematic viscosity of 5 mm2/s or more at 40° C. or a kinematic viscosity of 2 to 4 mm2/s at 100° C., a principal constituent of the hydrophobic substance being a hydrocarbon. A thermoplastic resin composition includes the graft copolymer (B-I). A molded article produced uses the thermoplastic resin composition.

Abstract: A thermoplastic resin composition containing 25 to 50 parts by mass of a rubber-containing graft copolymer (A) obtained by copolymerizing a monomer mixture containing an aromatic vinyl compound and a vinyl cyanide compound in the presence of a diene-based rubber-like polymer, and 50 to 75 parts by mass of a hard copolymer mixture (B) containing a hard copolymer (B-I) and a hard copolymer (B-II).

Abstract: The present invention is a resin component disposed in a path of a beam emitted from a radar equipment, the resin component consisting of a thermoplastic resin composition containing at least one thermoplastic resin selected from a group consisting of a rubbery polymer-reinforced vinyl-based resin wherein a polymer part derived from a rubbery polymer and a vinyl-based resin part containing a structural unit derived from a vinyl-based monomer are chemically bonded, a polyolefin resin, and a polycarbonate resin, and having a dielectric constant of 2.9 or less, and a mold shrinkage rate of 1.2% or less as measured in accordance with JIS K 7152-4. This resin component can be used as a radome and may constitute part of a radar device.

Abstract: The thermoplastic resin composition of the invention includes: 10% to 70% by mass of (A) a rubber-reinforced vinyl-based resin containing a rubbery part derived from an acrylic rubbery polymer and a resin pan having a structural unit derived from an aromatic vinyl compound and a structural unit derived from a cyanklated vinyl compound; 5% to 80% by mass of (B) a (meth)acrylic resin (excluding component (A)) including a (co)polymer which has a structural unit derived from an alkyl (meth)acrylate ester compound and which does not have a structural unit derived from ?-methylstyrene; and 5% to 70% by mass of (C) an ?-methylstyrene-based resin (excluding component (A)) containing a (co)polymer which has a structural unit derived from ?-methylstyrene and which does not have a structural unit derived from an alkyl (meth)acrylate ester compound based on 100% by mass of a total content of components (A) to (C).