| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aromatic vinyl based resin composition capable of giving a resin molded article being excellent in strength, impact-resistance, heat-resistance and injuring-resistance. <P>SOLUTION: The resin composition for the profile extrusion molding contains lubricant (D) and inorganic filler (E) at a predetermined ratio relative to an aromatic vinyl based resin component comprising a predetermined ratio of a rubber reinforcement aromatic vinyl based resin (A) defined in the following (1), an ethylene/α-olefin based rubber reinforcement aromatic vinyl based resin (B) defined in the following (2) and a super-high molecular weight aromatic vinyl based resin (C) defined in the following (3). (1) A resin comprising a graft polymer obtained by graft-polymerizing an aromatic vinyl compound in the presence of a rubber based polymer (provided that an ethylene/α-olefin based rubber is excepted) and having a weight average molecular weight of an acetone-soluble portion of 1,000,000 or lower. (2) A resin comprising a graft polymer obtained by graft-polymerizing an aromatic vinyl compound in the presence of an ethylene/α-olefin based rubber and having a weight average molecular weight of an acetone-soluble portion of 1,000,000 or lower. (3) A resin prepared by polymerization of an aromatic vinyl compound and having a weight average molecular weight of an acetone-soluble portion of at least 2,000,000. <P>COPYRIGHT: (C)2011,JPO&INPIT |
