POLYCARBONATE RESIN COMPOSITION HAVING GOOD FLAME RETARDANCY AND TRANSPARENCY

摘要

PURPOSE: A polycarbonate resin composition is provided to ensure excellent transparency, mechanical strength, heat resistance, and fluidity and to prevent the dropping in combustion. CONSTITUTION: A polycarbonate resin composition with excellent transparency and fire retardant characteristic includes (A) 100 parts by weight of a base resin including (A1) 50~90 weight% of a linear polycarbonate resin and (A2) 10~50 weight% of a branched polycarbonate resin, (B) 5~20 parts by weight of oligomeric phosphoric acid ester compounds or mixture thereof induced from bisphenol-A represented by chemical formula 1, (C) 0.1-10 parts by weight of cyclic phosphagen compounds represented by chemical formula 2, and (D) phenyl group-substituted siloxane copolymers represented by chemical formula 5.