POLYCARBONATE RESIN COMPOSITION

摘要

The polycarbonate resin of the present invention has an improved refractive index, balance of dispersion, photoelastic constant, and so on while still maintaining the characteristics of polycarbonate, such as excellent impact resistance and heat resistance,andischaracterized by comprising an aromatic-aliphatic copolymerized polycarbonate resin (A) and an aromatic polycarbonate resin (B) having a structural unit represented by the following formula (1): <CHEM> (Where X in the above formula (1) is: <CHEM> and wherein R3 and R4 are a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or a phenyl group, and R3 and R4 may combine to form a ring, R1 and R2 are a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or a halogen atom, R1, R2, R3 and R4 may be same or different, and m and n are a number of substituent being an integer from 0 to 4). <??>A polycarbonate resin composition according to the present invention can be suitably used as a plastic optical material for various lenses, prisms, optical disk substrates, and the like.