Patent ID: 6822026
Filing Date: 2004-11-23
Classification: C08K,C08L

Abstract:
An flame-retardant polypropylene resin composition comprising (A) polypropylene resin 20Ëœ69% by weight, (B) polyphenylene ether-based resin 1Ëœ50% by weight, (C) hydrogenated block copolymer, which is mainly based on aromatic vinyl compound, 0.1Ëœ15% by weight, (D) aromatic phosphoric ester having phenol structure 1Ëœ20% by weight, (E) polyammonium phosphate 1Ëœ20% by weight, and (F) pentaerythritol-based flame-retardant auxiliary agent 0.1Ëœ13% by weight, wherein the weight ratio of the aromatic phosphoric ester having phenol structure to the polyammonium phosphate is in the range of 0.2Ëœ5.0.