Production of hardened gelatin layers by the addition of quatern

Details Production of hardened gelatin layers by the addition of quatern Production of hardened gelatin layers by the addition of quatern

1973-07-06

1977-03-29

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

96111, 106125, C09H 500

Patent

active

040148629

ABSTRACT:
The present invention relates to the production of hardened gelatin layers by means of quaternary carbamoyl pyridinium compounds. Preferably this method is used for the hardening of silver halide photographic material.

REFERENCES:
patent: 1981292 (1934-11-01), Todd et al.
patent: 3511849 (1970-05-01), Wilson
patent: 3576813 (1971-04-01), Burness et al.
patent: 3880665 (1975-04-01), Himmelmann

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