FLAME RETARDANT AROMATIC POLYCARBONATE RESIN COMPOSITION FOR THIN WALL MOLDING, AND THIN WALL MOLDING

摘要

PROBLEM TO BE SOLVED: To provide a thin wall molding which has a good appearance and flame retardance combined, excellent impact resistance and fluidity, a heat stablity good enough to withstand high temperature molding processes, and exhibits superior overall properties.;SOLUTION: The flame retardant aromatic polycarbonate resin composition is composed of 3-20 pts.wt. of (B) a phosphorus-based flame retarder, 0.01-1 pt.wt. of (C) polyfluoroethylene, and 1-20 pts.wt. of (D) a graft copolymer containing polyorganosiloxane based on 100 pts.wt. of (A) of an aromatic polycarbonate resin. The graft copolymer containing the polyorganosiloxane (D) is obtained by polymerizing 0.5-10 pts.wt. of (Y) a first vinyl-based monomer and then 5-50 pts.wt. of (Z) a second vinyl-based monomer in the presence of 40-90 pts.wt. of (X) polyorganosiloxane particles. The first vinyl-based monomer (Y) is composed of 100-50 wt.% of (y-1) a multifunctional monomer and 0-50 wt.% of (y-2) another polymerizable monomer. The flame retardance of a 0.6 mm thick test piece molded from the aromatic polycarbonate resin composition according to the UL94 specification is V-0 or V-1.;COPYRIGHT: (C)2009,JPO&INPIT