To obtain the subject composition comprising a specific acrylate ester copolymer, a specific maleimide copolymer and a specific graft copolymer, high in impact resistance and thermal deformation resistance, low in rigidity, etc., and excellent in pigment dispersibility, etc.
This low rigid styrenic resin composition comprises (A) an acrylate ester copolymer produced by copolymerizing (i) an alkyl acrylate, (ii) a vinyl cyanide compound and (iii) an aromatic vinyl compound and having a Tg of ≤20°C and a gel content of ≤10wt.%, (B) a maleimide copolymer produced by copolymerizing the components (ii) and (iii) with (iv) a maleimide compound, wherein the content of the component (iii) is ≥49mol.%, and (C) a graft copolymer comprising graft parts produced by copolymerizing the component (ii) with the component (iii) and a rubber polymer part having a volume- average particle diameter of 100-1000nm and selected from a dienic polymer, an olefinic polymer and an acrylic acid polymer which are produced by a coagulation growth method in the presence of an oxygen-containing latex produced by copolymerizing an unsaturated acid such as acrylic acid with a 1-12C alkyl (meth)acrylate.
WADA KAZUHITO
MATSUMOTO SHIGEMI
