Patent ID: 6221926
Filing Date: 2001-04-24
Classification: B29B,C08J

Abstract:
Foamable modified polystyrene resin particles, wherein the foamable modified polystyrene resin particle (E) comprises a particle of a modified polystyrene resin (C) containing a blowing agent (D); said resin (C) comprises conjugated diene polymer rubber particles (B) having a particle size of not more than 0.2 .mu.m which are dispersed uniformly throughout a polystyrene resin (A), when said foamable modified polystyrene resin particle (E) is expanded, there is substantially no deformation of the rubber particles (B) before and after the expansion, and said conjugated diene polymer rubber is prepared by radically polymerizing a conjugated diene monomer and other monomer in the presence of a radical initiator.