Benzotriazole complexes and film units employing same

Details Benzotriazole complexes and film units employing same Benzotriazole complexes and film units employing same

1980-12-31

1982-11-16

Brown, J. Travis

Compositions

Humidostatic, water removive, bindive, or emissive

430449, 430354, C09K 300

Patent

active

043593976

ABSTRACT:
Solid compositions are disclosed comprising a complex of water; a benzotriazole of the formula ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, a monovalent organic radical, halogen, or nitro; and at least one water-soluble base having a basicity greater than that of the benzotriazole and capable of dissociating to provide an anion and a monovalent or divalent metal cation. The compositions have melting ranges above 35.degree. C. and are capable of releasing a substantial portion of the water contained therein to the surrounding environment when melted. The compositions can be employed in thermally developable photographic film units as thermally induced water-releasing materials which provide water to the internal environment of the film unit when the film unit is heated sufficiently to melt the composition.

REFERENCES:
patent: T878008 (1970-09-01), Padday
patent: 2704721 (1955-03-01), Land
patent: 3080230 (1963-03-01), Haydn et al.
patent: 3248219 (1966-04-01), Jacobs
patent: 3564001 (1971-02-01), Long
patent: 3694204 (1972-09-01), Farney et al.
patent: 3733199 (1973-05-01), Crough et al.
patent: 3806342 (1974-04-01), Farney et al.
patent: 4107060 (1978-08-01), Schick et al.

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