Method of hardening gelatin

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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430621, G03C 130

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active

044277687

ABSTRACT:
A method of hardening gelatin is described comprising treating gelatin with a compound of the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 can each represent a monovalent group including a carbon atom or a nitrogen atom forming a bond together with the nitrogen atom N forming an acid ester in the formula (I); or R.sup.1 and R.sup.2 together can form a heterocyclic ring together with said nitrogen atom N, and

REFERENCES:
patent: 4052373 (1977-10-01), Sera et al.
patent: 4066636 (1978-01-01), Sera et al.
patent: 4111926 (1978-09-01), Sera et al.

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