| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition containing a graft copolymer and a copolymer, reducing fraction defectives of molded articles during molding and excellent in prevention of pollution to a molding machine metal mold.SOLUTION: There is provided a thermoplastic resin composition containing (A) a graft copolymer obtained by graft polymerizing 10 to 80 pts.wt. of a rubbery polymer and 20 to 90 pts.wt. of at least one monomer selected from an aromatic vinyl monomer, a vinyl cyanide monomer and another vinyl monomer copolymerizable with them and (B) a copolymer obtained by copolymerizing one or more selected from an aromatic vinyl monomer, a vinyl cyanide monomer and another vinyl monomer copolymerizable with them and having resin pH of the thermoplastic resin composition of 6.0 to 9.0 and ash content of 0.05 to 0.39%. In the thermoplastic resin composition, the graft copolymer (A) is prepared by emulsion polymerization and Mg content in the ash component is 50% or less.SELECTED DRAWING: None |
