Optical information recording medium

Details Optical information recording medium Optical information recording medium

1994-02-04

1996-04-30

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Dye image from radiation sensitive dye or dye former by dry...

Composition or product

43027016, 4302711, 430341, 4304951, G03C 173

Patent

active

055124232

ABSTRACT:
An optical information recording medium improved in storage stability and thermal stability, having a base and a recording layer, the recording layer containing a spiropyran compound and at least one carboxylic acid metallic complex expressed by general formulae I! and II!: ##STR1## where M represents a metallic element and each of R.sub.11 and R.sub.12 represents an alkylene group, an alkylidene group, an aromatic ring, an aliphatic ring, or a heterocyclic ring.

REFERENCES:
patent: 3964911 (1976-06-01), Robillard
patent: 4010833 (1977-03-01), Metzger
patent: 4485968 (1984-11-01), Arakawa et al.
patent: 4565779 (1986-01-01), Arakawa et al.
patent: 4626496 (1986-12-01), Sato
patent: 4794068 (1988-12-01), Mayazaki et al.
Influence of Ampho-Counter Ion and Fading Due to Light of Spiropyran, Chemical Society of Japan, 58th Spring Annual Convention, Preprints II (Mar. 14, 1989) 1874, upper column, 3 III H 27.
Tokyo Kasei Company, Limited Catalog 30, Organic Chemicals, 1990.

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