The chemical compound which is displayed with the below-mentioned general formula the methacrylic resin constituent for the optical component

摘要

PROBLEM TO BE SOLVED: To provide a methacrylic resin composition for an optical member, having excellent optical characteristics hardly causing discoloration and generation of a foreign matter by the heat at molding, having good mold releasability, hardly causing corrosion of a mold and contamination of the mold, and having good moldability.;SOLUTION: The methacrylic resin composition for the optical member comprises (a) 100 pts. by mass of a methacrylic polymer composed of 50-99.9 mass% methyl methacrylate unit and 0.1-50 mass% monomer unit copolymerizable therewith, (b) 0.001-0.5 pt. by mass of a compound represented by the general formula (wherein, R¹, R², R³ and R⁴ are each an OH group or OCOR⁵; R⁵ is an 8-23C alkyl group; with the proviso that the number of the OH groups in the R¹, R², R³ and R⁴ is ≤3), and (c) 0.001-0.2 pt. by mass of an ultraviolet absorber.;COPYRIGHT: (C)2005,JPO&NCIPI