Importance

Loading Importance Indicators...

Abstract

The optical information recording medium comprises a recording layer on a surface of a support. The surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, and the recording layer comprises a phthalocyanine derivative denoted by general formula (I) and a compound denoted by general formula (II). In general formula (I), R.sup.1 denotes a substituent, n denotes an integer ranging from 1 to 16, and M denotes a metal atom optionally comprising a ligand, a metal oxide, or two hydrogen atoms. In general formula (II), R.sup.2 denotes a substituted or unsubstituted alkyl group having 1 to 18 carbon atoms or a substituted or unsubstituted aryl group having 4 to 24 carbon atoms, and m is an integer ranging from 1 to 4.

Loading the Abstract Image...

First Claim