Patent ID: 6403683
Filing Date: 2002-06-11
Classification: C08K,C08L

Abstract:
A polycarbonate resin composition which comprises:(A) 40 to 92 wt % of an aromatic polycarbonate resin (component â€œaâ€ ); (B) 5 to 40 wt % of a styrene-based resin (component â€œbâ€ ); (C) 3 to 20 wt % of a phosphate-based flame retardant (component â€œcâ€ ); and (D) 0.1 to 30 parts by weight of a silicate filler (component â€œdâ€ ) based on 100 parts by weight of the total of the components â€œaâ€ , â€œbâ€  and â€œcâ€ , (E) 0.1 to 2 parts by weight of polytetrafluoroethylene (component â€œeâ€ ) having fibril formability based on 100 parts by weight of the total of the components â€œaâ€ , â€œbâ€  and â€œcâ€ ; and (F) 1 to 10 parts by weight of a (meth)acrylate-based core-shell graft copolymer (component â€œf-1â€ ) based on 100 parts by weight of the total of the components â€œaâ€ , â€œbâ€  and â€œcâ€ , wherein the component f-1 is selected from the group (i) a (meth) acrylate-based core-shell graft copolymer (f-1-i) consisting of 40 to 90 wt % of core made from a rubber consisting of 60 to 100 wt % of butadiene and 0 to 40 wt % of styrene and 10 to 60 wt % of a shell made from a polymer or copolymer comprising one or more monomers selected from an acrylic ester, methacrylic ester, aromatic vinyl compound and vinyl cyanide compound and (ii) a (meth)acrylate-based core-shell graft copolymer (f-1-ii) consisting of 40 to 90 wt % of core made from a copolymer rubber consisting of 60 to 90 wt % of an acrylic ester and 10 to 40 wt % of butadiene and 10 to 60 wt % of a shell made from a polymer or copolymer comprising one or more monomers selected from an acrylic ester, methacrylic ester, aromatic vinyl compound and vinyl cyanide compound, and which has a chlorine compound content in terms of chlorine atoms of 100 ppm or less.