Photosensitive azide compound containing color-forming element

Details Photosensitive azide compound containing color-forming element Photosensitive azide compound containing color-forming element

1975-09-04

1977-01-18

Bowers, Jr., Charles L.

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

96 33, 96 351, 96 36, 96 362, 96 363, 96 49, 96 85, 96 86R, 96 86P, 96 87R, 96 91N, 96115R, G03C 158, G03C 172

Patent

active

040037479

ABSTRACT:
A photosensitive color-forming element comprises a support and a photosensitive color-forming layer carried on the support and containing therein a color-forming coupler, for example, 1-naphthol, 2-naphthol and 2,4-dichloro-1-naphthol, and a photosensitive azido compound of the formula (I) or (II): ##STR1## wherein R.sub.1 represents a hydrogen or halogen atom or an alkyl, alkoxyl, diethylamino or hydroxyl radical R.sub. 2 an alkyl, alkoxyl or hydroxyl radical, and R.sub.3 a hydrogen atom or an alkyl or phenyl radical, and, if necessary, a polymeric material capable of hardening or being insolubilized in solvent when the polymeric material is exposed to radiation rays in the presence of the above azido compound, the above-mentioned azido compound and color-forming coupler being capable of forming a dark color upon exposure to radiation rays, without a color-developing agent.

REFERENCES:
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patent: 1845989 (1932-02-01), Schmidt et al.
patent: 2690968 (1954-10-01), Powers
patent: 2692826 (1954-10-01), Neugebauer et al.
patent: 3062650 (1962-11-01), Sagura et al.
patent: 3092494 (1963-06-01), Sus et al.
patent: 3174860 (1965-03-01), Sus et al.
patent: 3235383 (1966-02-01), Steppan et al.
patent: 3679419 (1972-07-01), Gillich
patent: 3856531 (1974-12-01), Grisdale et al.
patent: 3867147 (1975-02-01), Teuscher

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