Radiation imagery chemistry: process – composition – or product th – Dye image from radiation sensitive dye or dye former by dry... – Composition or product
Patent
1988-10-14
1990-10-09
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Dye image from radiation sensitive dye or dye former by dry...
Composition or product
430337, 252586, G03C 1735, G03C 173
Patent
active
049620134
ABSTRACT:
A photochromic material to be used for a photosensitive arrangement such as photosensitive laminated glass. The photochromic material is formed of a high polymer substrate material containing photochromic spirooxazine compound as expressed by the following general formula: ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are at least one selected from the group consisting of alkyl group, alkenyl group, cycloalkyl group and aryl group; R.sup.4 is one selected from the group consisting of hydrogen atom and alkyl group having the number of carbon atoms ranging from 1 to 5; rings X and Y are at least one selected from the group consisting of hydrocarbon aromatic ring and heterocyclic aromatic ring; and Z is one selected from the group consisting of oxygen atom and sulfur atom. Additionally, a triplet state quencher such as nitroxy free radical is contained in the high polymer substrate material, thereby suppressing generation of deterioration substance due to irreversible reaction of spirooxazine molecules.
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Ito Masashi
Maeda Shuichi
Mitsuhashi Kazuo
Murayama Tetsuo
Tateoka Yasuo
Martin Roland E.
Mitsubishi Kasei Corporation
Nissan Motor Co., Ltd. Yokohama
Rodee Christopher D.
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