Method of hardening gelatin

Details Method of hardening gelatin Method of hardening gelatin

1988-03-30

1990-01-30

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430138, 430621, 530354, G03C 130

Patent

active

048973440

ABSTRACT:
A method of hardening gelatin comprising adding to the gelatin to be hardened at least one compound represented by formula (I) ##STR1## wherein L represents a divalent organic group, R represents a hydrogen atom or a univalent organic group, A represents a substituted or unsubstituted benzene ring which may be condensed with another ring, M.sup..sym. represents a hydrogen ion, an alkali metal ion or an ammonium ion, and n has a value of 1 or 2 or 3. The method may be applied to various processes involving hardening of gelatin, such as processes for forming various photographic materials or microcapsules.

REFERENCES:
patent: 3689274 (1972-09-01), Sobel et al.
patent: 4294921 (1981-10-01), Yamaguchi et al.
patent: 4323646 (1982-04-01), Bergthaller et al.
patent: 4349624 (1982-09-01), Sobel et al.
patent: 4418140 (1983-11-01), Mifune et al.
patent: 4476218 (1984-10-01), Ogawa et al.
patent: 4543324 (1985-09-01), Himmelmann

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