USE OF CU-PHTHALOCYANINSULFONIC ACID AMIDES AS A DYE FOR ONCE WRITABLE OPTICAL DATA STORAGE

摘要

The invention relates to a write-once optical data storage means while using Cu-phthalocyanine sulfonamides as a dye, especially for CD-R, and to the application of the above-mentioned dyes onto a polymer substrate (especially polycarbonate) by means of spin coating.