| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition excellent in impact resistance and aerial impact resistance. <P>SOLUTION: This thermoplastic resin composition includes: a graft resin [A] obtained by polymerizing a monomer comprising an aromatic vinyl compound and a vinyl cyanide compound in the presence of a rubbery polymer; a polymer [B]; and a block copolymer [C] comprising a polymer block including a structural unit derived from the aromatic vinyl compound, and a polymer block including a structural unit derived from a conjugated diene compound. The [B] polymer comprises: a polymer (B-1) containing a structural unit (by) derived from an aromatic vinyl compound and containing a structural unit (bx) derived from a vinyl cyanide compound in an amount 0-r<SB POS="POST">1</SB>mass%; a polymer (B-2) containing the structural unit (by) and containing the structural unit (bx) in an amount exceeding r<SB POS="POST">1</SB>mass% to r<SB POS="POST">2</SB>mass%; and a polymer (B-3) containing the structural unit (by), and containing the structural unit (bx) in an amount exceeding r<SB POS="POST">2</SB>mass% to 60 mass%. <P>COPYRIGHT: (C)2013,JPO&INPIT |
