Photographic recording and reproduction of information photochro

Details Photographic recording and reproduction of information photochro Photographic recording and reproduction of information photochro

1975-07-18

1976-09-14

Louie, Jr., Won H.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 48QP, 96119PQ, 96 47, 96 452, 250323, 96 90PC, 96 90R, G03C 524, G03C 152

Patent

active

039804801

ABSTRACT:
A photographic process wherein a visible image is formed by print-out or optical development in a recording material comprising in intimate admixture a spiropyran compound, an ultra-violet light-sensitive compound capable of producing an exposure with ultra-violet light with the spiropyran a dye salt and as sensitizing agent an organic nitrogen containing compound having a thiol group or in its tautomeric form a thione group as represented in the following tautomeric structural parts : ##EQU1## Preferred recording materials contain a spirodinaphthopyran compound, carbon tetrabromide and/or iodoform and as sensitizing agent 2-mercaptobenzthiazole in conjunction with a triaryl stibine as antifogging agent.

REFERENCES:
patent: 3147117 (1964-09-01), Wainer et al.
patent: 3322542 (1967-05-01), Ullman et al.
patent: 3359105 (1967-12-01), Wainer
patent: 3436353 (1969-04-01), Dreyer et al.
patent: 3486899 (1969-12-01), Brown
patent: 3510300 (1970-05-01), Fotland et al.
patent: 3558317 (1971-01-01), Petro et al.
patent: 3642479 (1972-02-01), Van Allan et al.
patent: 3660086 (1972-05-01), Tamai et al.
patent: 3667949 (1972-06-01), Inoue et al.

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