| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an impact-modified thermoplastic composition containing an impact resistance improver uninfluenced by impurities or byproducts during production of the impact resistance improver having no discoloration at high temperature, without lowering viscosity of a polymer composition, by balancing all characteristics of a thermoplastic polymer having excellent impact resistance, and to provide a method for producing the impact resistance improver. <P>SOLUTION: This invention relates to: a thermoplastic composition having as an impact resistance improver, rubber containing a graft polymer produced by an emulsion polymerization process and recovered by a special method for controlling and adjusting a pH value; use of the thermoplastic composition in production of a molded article; and the molded article obtained by molding. The invention also relates to a thermoplastic composition containing an impact resistance improver having a core-shell structure containing at least one gradient polymer produced by a multistage operation, namely, produced by the emulsion polymerization process and recovered by the special method for controlling and adjusting the pH value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
