Techno-Umg Co., Ltd.

Yuuki Omata

Shinsuke Fujioka

A thermoplastic resin composition includes 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 polycarbonate-based resins (C), and 0.5% to 20% by mass of inorganic compound (D) having volume average particle diameter (MV) of 1 to 200 μm (where a total of (A), (B), (C), and (D) (hereafter referred to as 'total of a component (A) to a component (D)') is 100% by mass). The rubber-containing graft copolymer (A) is a graft copolymer in which 35 to 80 parts by mass of rubber-like polymer selected from diene-based rubber, acrylic rubber, and ethylene-based rubber is graft-polymerized with 20 to 65 parts by mass of vinyl-based monomer mixture containing an aromatic-vinyl-based monomer and a vinyl-cyanide-based monomer (where a total of the rubber-like polymer and the vinyl-based monomer mixture is 100% by mass).

Thermoplastic resin composition having improved bend/wrinkle resistant properties and formed article thereof

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 α-methylstyrene; and 5% to 70% by mass of (C) an α-methylstyrene-based resin (excluding component (A)) containing a (co)polymer which has a structural unit derived from α-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).

Thermoplastic resin composition and molded article

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.

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Tokyo, Japan

Yuuki Omata