| abstract |
(57) [Problem] To provide a novel multilayer polymer particle capable of giving a molded article excellent in elastic recovery when the resin itself or a resin composition of the same and a synthetic resin is used as a molded article. provide. SOLUTION: The present invention provides a rubber component layer (I) formed by copolymerization of a monomer mixture containing an acrylate and a polyfunctional monomer, and a monolayer comprising a methacrylate and another monomer. Multilayer polymer particles having a thermoplastic resin component layer (II) formed by copolymerization of a monomer mixture and satisfying the following conditions (1) to (3). (1) The number average molecular weight of the thermoplastic resin component constituting the outermost layer is 30,000 or less. (2) The weight ratio of layer (I) / layer (II) is 30 / 70-90. / 10. (3) The average particle size is 150 nm or less. |