Polycarbonate resin composition and molded article

Abstract

Disclosed are: a polycarbonate resin composition having excellent weather resistance, transparency, color, heat resistance, thermal stability, moldability and mechanical strength; and a molded article produced from the polycarbonate resin composition. Specifically disclosed are: a polycarbonate resin composition comprising a polycarbonate resin (A) that contains a structural unit derived from a dihydroxy compound (a) having, as a part of the structure thereof, a moiety represented by general formula (1) and an aromatic polycarbonate resin (B) having a reduced viscosity of 0.50 dl / g or more; and a molded article produced from the polycarbonate resin composition. (In the composition, the moiety represented by general formula (1) is not a part of -CH2-O-H.)

Description

technical field The present invention relates to a polycarbonate resin composition excellent in weather resistance, transparency, color tone, heat resistance, thermal stability, moldability and mechanical strength, and a molded article thereof. Background technique Polycarbonate resins generally use bisphenols as monomer components, and exhibit advantages such as transparency, heat resistance, and mechanical strength. They are widely used in electrical and electronic parts, automotive parts, medical parts, building materials, films, sheets, They are widely used as so-called engineering plastics in fields such as bottles, optical recording media, and lenses. However, conventional polycarbonate resins deteriorate in color tone, transparency, and mechanical strength when used in places where they are exposed to ultraviolet rays and visible light for a long period of time. Therefore, their use outdoors and near lighting devices is limited. In addition, when used as various mol...

AI Technical Summary

Problems solved by technology

However, when an ultraviolet absorber is added as described in Non-Patent Document 1, although an improvement in the color tone after ultraviolet irradiation is confirmed, there is a problem that the color tone, heat resistance, and transparency of the original resin are deteriorated, Or volatilize during molding to pollute the metal mold; etc.