POLYCARBONATE SUBSTRATES

摘要

The invention relates to a method for producing polycarbonate having a high purity and an extremely high transmittance especially at short wavelengths. The inventive polycarbonate is produced on the basis of 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexanone and 4,4-(meta-phenylendiisopropyl)-diphenol. The invention also relates to the polycarbonate obtained, to its use in the production of optical memories and to optical memories produced according to the invention.