Optical recording medium

Details Optical recording medium Optical recording medium

1987-11-10

1989-08-22

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430495, 430945, 3461351, G11B 724, G01D 900, G03C 172, B41M 526

Patent

active

048595691

ABSTRACT:
An optical recording medium comprising practically a naphthalocyanine dye represented by the following general formula (I): ##STR1## wherein M means a metal, metal oxide or metal halide, and --OR.sub.1, --OR.sub.2, --OR.sub.3 and --OR.sub.4 are the same or different and denote ether groups respectively having R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each of which is a saturated or unsaturated hydrocarbon group having 4-12 carbon atoms.

REFERENCES:
patent: 4458004 (1984-07-01), Tanikawa
patent: 4492750 (1985-01-01), Law et al.
patent: 4719613 (1988-01-01), Hirose et al.
patent: 4725525 (1988-02-01), Kenney et al.

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