Method for hardening gelatin

Details Method for hardening gelatin Method for hardening gelatin

1975-02-12

1977-11-08

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

96111, C09H 700

Patent

active

040575381

ABSTRACT:
This invention relates to a method of hardening gelatin which is accomplished by combining a compound containing at least one carbo-di-imide group with a compound having at least two vinyl sulfonyl groups. This combination has application to the photographic industry by providing a method of hardening the type of gelatin which is used in a gelatin -- containing photographic layer of a light-sensitive halide photographic material.

REFERENCES:
patent: 2938892 (1960-05-01), Sheehan
patent: 2946819 (1960-07-01), Coles
patent: 3100704 (1963-08-01), Coles
patent: 3392024 (1968-07-01), Burness
patent: 3455893 (1969-07-01), Froehlich
patent: 3676143 (1972-07-01), Himmelmann
patent: 3832181 (1974-08-01), Dallon
patent: 3841872 (1974-10-01), Burness
patent: 3850639 (1974-11-01), Dallon
patent: 3868257 (1975-02-01), Horii

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