Process of hardening protein-containing photographic layers with

Details Process of hardening protein-containing photographic layers with Process of hardening protein-containing photographic layers with

1976-02-06

1977-09-13

Louie, Jr., Won H.

Gas separation: apparatus

Electric field separation apparatus

Including gas flow distribution means

96111, 96114, 260117, 427333, 427338, 106125, 252182, G03C 176, G03C 130

Patent

active

040479579

ABSTRACT:
A process is described for the hardening of a protein-aceous layer or layers, more especially of gelatin layers, e.g. gelatin layers in a photographic material, by the application on this layer or layers of a coating composition comprising a low molecular weight, fast-acting, carboxyl group-activating hardening agent in combination with a film-forming, hydrophilic, polymeric, fast-acting hardening agent carrying one or more carboxyl group-activating substituents.

REFERENCES:
patent: 3100704 (1963-08-01), Coles et al.
patent: 3321313 (1967-05-01), Burness et al.
patent: 3671256 (1972-06-01), Minsk et al.
patent: 3880665 (1975-04-01), Himmelmann

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