The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 1976
Filed:
Mar. 18, 1974
Teiji Habu, Hino, JA;
Hisashi Yamaguchi, Hino, JA;
Tsuneo Wada, Hino, JA;
Takashi Sasaki, Hino, JA;
Hiroki Ishii, Hino, JA;
Takayoshi Omura, Hino, JA;
Hiroyuki Inokuma, Hino, JA;
Konishiroku Photo Industry Co., Ltd., Tokyo, JA;
Abstract
A process for hardening gelatin which comprises reacting photographic gelatin with a compound of the general formula ##SPC1## Wherein R.sub.1 and R.sub.2 individually are halogen, an aryloxy group which may have substituents, or an arylthio group which may have substituents; X is a simple bond, an alkylene group which may have substituents --CO, --CO--R.sub.5 --CO-- (in which R.sub.5 is an alkylene group which may have substituents) or --R.sub.6 --(O--R.sub.6).sub.n -- (in which R.sub.6 is an alkylene group which may have substituents and n is a positive integer); an Y is a saturated or unsaturated hydrocarbon group which may have substituents, or a group ##SPC2## (in which R.sub.3 and R.sub.4 individually are halogen).