Method for improving the conservation of a photographic product

Details Method for improving the conservation of a photographic product Method for improving the conservation of a photographic product

1997-04-16

1998-12-29

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified backing or protective layer containing

430432, 430531, 430539, 430961, 430538, G03C 1775, G03C 193

Patent

active

058539700

ABSTRACT:
The present invention improves the conservation of a photographic product with a cellulose ester type support. The present invention involves coating on the support or the photographic product with a transparent film-forming aqueous composition. The composition is a fibrous alumino-silicate polymer of formula Al.sub.x Si.sub.y O.sub.z in which x:y is between 1 and 3, and z is between 2 and 6. The support can be treated before the application of the photographic layers (as a substratum or under-layer) or after the application of the photographic layers (as a top layer). It is also possible to treat an exposed, developed film by applying a top layer of the said composition.

REFERENCES:
patent: 4022622 (1977-05-01), Timmerman et al.
patent: 5215192 (1993-06-01), Ram et al.
patent: 5508135 (1996-04-01), Lelental et al.
patent: 5714309 (1998-02-01), Poncelet et al.

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