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|1. (WO2018139206) POLYCARBONATE RESIN COMPOSITION FOR OPTICAL PARTS AND OPTICAL PART|
|Applicants:||MITSUBISHI ENGINEERING-PLASTICS CORPORATION
|Title:||POLYCARBONATE RESIN COMPOSITION FOR OPTICAL PARTS AND OPTICAL PART|
The present invention is a polycarbonate resin composition for optical parts and an optical part, which have a good hue and very little gas generation and mold contamination during molding. The polycarbonate resin composition for optical parts is characterized in containing, with respect to 100 parts by mass of a polycarbonate resin (A): 0.1-4 parts by mass of a polyalkylene glycol (B) that has a weight average molecular weight (Mw), measured in a tetrahydrofuran solvent by gel permeation chromatography and calculated as polystyrene, of greater than 4,000-7,700 and has a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) of 2.5 or less; and 0.005-0.5 parts by mass of a phosphorus stabilizing agent (C).