| 摘要 |
<p>A polycarbonate-polysiloxane copolymer resin composition is provided to ensure an excellent balance in physical properties including low-temperature impact strength, mechanical strength and appearance, and to produce various molded articles requiring a high low-temperature impact strength, such as automobile parts. A polycarbonate-polysiloxane copolymer resin composition having excellent low-temperature impact strength and mechanical strength comprises: (A) 100 parts by weight of a thermoplastic polycarbonate resin; and (B) 0.1-30 parts by weight of an epoxy-containing organosiloxane polymer represented by the following formula 2, 3 or 4. In the formulae, each of R1, R3 and R5 independently represents H, C1-C8 alkyl, C6-C30 aryl or alkyl-substituted aryl; each of R2, R4 and R6 independently represents a C1-C8 alkylene; each of p, q and r independently represents 0 or 1; each of a and b represents the number of repeating units ranging from 1 to 10; and c and d represent a ratio of repeating units, wherein c:d is 99.9:0.1-50:50.</p> |
