Patent ID: 7148275

Claim:
A flame retardant thermoplastic resin composition comprising: (A) 100 parts by weight of a thermoplastic resin as a base resin; (B) about 0.1˜100 parts by weight of a phenol resin derivative represented by the following Formula: where R 1 is alkyl of C 1-34 ; aryl; alkyl-substituted aryl; O-, N-, P- or S-containing alkyl; O-, N-, P- or S-containing aryl; or O-, N-, P- or S-containing alkyl-substituted aryl; R 2 , R 3 , and R 4 are hydrogen, alkyl of C 1-34 ; aryl; alkyl-substituted aryl; O-, N-, P- or S-containing alkyl; O-, N-, P- or S-containing aryl; or O-, N-, P- or S-containing alkyl-substituted aryl; and n is an integer of 1 to 10,000; and (C) about 1˜50 parts by weight of a phosphorous compound wherein the phosphorous compound is represented by the following Formula: where R 1 is hydrogen, alkyl of C 1-6 , or aryl of C 6-15 , R 2 and R 3 are hydrogen or alkyl of C 1-6 , and n is in the range of 1 to 3.