Patent ID: 8138295

Claim:
A polycarbonate resin composition with high impact strength at low temperature and high mechanical strength, comprising: (A) about 100 parts by weight of a thermoplastic polycarbonate resin; and (B) about 0.1 to about 30 parts by weight of an organic siloxane polymer having a primary amine group, wherein said organic siloxane polymer having a primary amine group (B) is represented by following Chemical Formula 2: wherein: each R 1 is independently C 1-8 alkyl, C 6-30 aryl, or C 1 -C 15 alkyl-substituted C 6-30 aryl; R 2 is C 1-8 alkylene; each R 3 is independently hydrogen, C 1-8 alkyl, C 6-30 aryl, or C 1 -C 15 alkyl-substituted C 6-30 aryl; each p is independently 0 or 1; k is an integer from 1 to 5; and m and n are repeating units, wherein the ratio of m to n of said organic siloxane polymer having a primary amine group is about 99.5:0.5 to about 55:45; and (C) about 0.1 to about 10 parts by weight of an impact modifier.