Polycarbonate resin composition

摘要

To provide a polycarbonate resin composition having a high Abbe's number, high strength and excellent stainability.;Disclosed is a polycarbonate resin composition prepared by blending
a polycarbonate resin (A) prepared by forming carbonate bonds in tricyclo[5.2.1.02,6]decanedimethanol with a diester or phosgene, and a weight-averaged molecular weight (Mw) of the polycarbonate resin (A) being equal to or more than 25,000, anda polycarbonate resin (B) prepared by reacting 2,2-bis(4-hydroxyphenyl)propane and phosgene, and weight-averaged molecular weight (Mw) of the polycarbonate resin (B) being equal to or more than 30,000, whereina ratio thereof, 100×(A)/((A)+(B)), is from 1 to 99% by weight.

主权项

1. A polycarbonate resin composition, comprising:
a polycarbonate resin component consisting of a polycarbonate resin (A) obtained by reacting tricyclo[5.2.1.02,6]decanedimethanol with a diester, phosgene, or both, and a polycarbonate resin (B) obtained by reacting 2,2-bis(4-hydroxyphenyl)propane and phosgene, wherein the polycarbonate resin (A) is a homopolymer of tricyclo[5.2.1.02,6]decanedimethanol and has a weight-average molecular weight of at least 25,000, the polycarbonate resin (B) is a homopolymer of 2,2-bis(4-hydroxyphenyl)propane and has a weight-average molecular weight of at least 30,000, and the polycarbonate resin (A) and the polycarbonate resin (B) are blended in the composition such that a ratio 100×(A)/((A)+(B)) is from 30 to 60% by weight.