Cycloaliphatic copolycarbonates, their production and use

摘要

A polycarbonate resin obtainable by reaction of pentacyclopentadecane dimethanol, at least one compound selected from the group consisting of tricyclo (5.2.1.0<2,6>) decane dimethanol, cyclohexane-1,4-dimethanol, decalin-2,6-dimethanol and norbornane dimethanol and carbonic acid diester. This invention also describes a process for preparing this resin and the use thereof for optical products.