STYRENIC GRAFT COPOLYMER-CONTAINING POWDER HAVING EXCELLENT POWDER PROPERTIES AND STYRENIC THERMOPLASTIC RESIN COMPOSITION USING THE SAME

摘要

PROBLEM TO BE SOLVED: To sufficiently improve the powder properties of a styrenic graft copolymer having an increased rubber content and, simultaneously, to improve flow marks (jetting) of a rubber modified thermoplastic resin using the same.;SOLUTION: A styrenic graft copolymer-containing powder (G) is obtained by recovery after the addition of (B) 0.1-10 pts.wt. (solid content) hard copolymer having, as the characteristic features, (1) a content of a vinyl cyanate based monomer unit of 10-60 wt.%, (2) a reduced viscosity, measured in 100 ml dimethylformamide dissolving 0.2 g powder at 25°C, of 1.5-20 dl/g, and (3) a weight average particle diameter of 50-200 nm to 100 pts.wt. (solid content) slurry of (A) a styrenic graft copolymer.;COPYRIGHT: (C)2003,JPO