Patent ID: 8512600

Claim:
A polycarbonate resin composition comprising: a base resin comprising about 70 to about 95% by weight of a (A) polycarbonate and about 30 to about 55% by weight of a (B) styrene copolymer resin including about 60 to about 90% by weight of styrene based monomer and about 10 to about 40% by weight of unsaturated-nitrile based monomer, (C) about 0.01 to about 5 parts by weight of carbon nano-tubes, and (D) about 1 to about 20 parts by weight of carbon black, wherein the amounts of carbon nano-tubes (C) and carbon black (D) are based on 100 parts by weight of the base resin, and wherein the carbon nano-tubes and the carbon black form a three dimensional network structure.