Optical information recording medium

Details Optical information recording medium Optical information recording medium

1985-02-06

1987-04-07

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

430270, 430271, 430346, 430348, 430577, 430584, 430617, 430945, 428913, 346766, 3461351, 556 64, G03C 172, G11B 724

Patent

active

046561218

ABSTRACT:
This invention relates to an optical information recording medium having an organic thin film recording layer, and optionally having an underlayer and/or protective layer, characterized in that at least one of said recording layer, underlayer and protective layer contains a compound expressed by the general formula (1), ##STR1## wherein R represents hydrogen or a lower alkyl group; X represents acid anion; m represents 0, 1 or 2; and A represents ##STR2## (n being 1 or 2) or ##STR3## (when m is 2); all the aromatic rings optionally having a substituent selected from the group of a lower alkyl group, lower alkoxy group, halogen and hydroxyl group.

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patent: 4460665 (1984-07-01), Kunikane et al.
patent: 4508811 (1985-04-01), Gravesteijn et al.
patent: 4546075 (1985-10-01), Kitaguchi et al.
patent: 4551413 (1985-12-01), Bell
patent: 4600625 (1986-07-01), Abe et al.

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