Process for hardening gelatin

Details Process for hardening gelatin Process for hardening gelatin

1986-12-29

1988-06-14

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Hardener

430621, 430623, 430426, 530354, G03C 536, G03C 130

Patent

active

047511737

ABSTRACT:
A process for hardening gelatin, which comprises incorporating in a gelatin-containing material at least one hardening compound represented by formula (I) ##STR1## wherein R.sup.1 represents a substituted or unsubstituted aryl group, Z represents non-metallic atoms necessary for the formation of a nitrogen-containing heteroaromatic ring which may optionally be substituted, X.sup..crclbar. represents an anion, and n represents 0 or 1 provided that when n represents 0, the compound forms an inner salt. The gelatin hardeners can rapidly harden gelatin with little or no post-hardening and react with reactive groups of gelatin with high selectivity.

REFERENCES:
patent: 4067741 (1978-01-01), Bergthaller et al.
patent: 4123281 (1978-10-01), Monbaliu et al.
patent: 4233398 (1980-11-01), Nittel et al.
patent: 4421847 (1983-12-01), Jung et al.

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