Use of mixtures of thermoplastic polycarbonates and copolymers of styrene with methacrylonitrile as substrates for optical-recording material.

摘要

The subject-matter of the present invention is the use of mixtures of a) thermoplastic polycarbonates on the basis of tetraalkylated diphenols and b) thermoplastic copolymers of styrene with methacrylonitrile as substrates for optical recording material.