POLY(METH)ACRYLIC COPOLYMER

摘要

PROBLEM TO BE SOLVED: To provide a heat-resistant resin copolymer having high thermal stability and balanced transparency and low hygroscopicity. SOLUTION: The poly(meth)acrylic copolymer contains a monomer unit of general formula (1) (R is H or methyl) and other monomer unit copolymerizable with the former monomer unit. The invention further provides a transparent part for optical use composed of the copolymer. COPYRIGHT: (C)2004,JPO