Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH528266Aexternal-prioritypatent/CH473887A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES339157A1publicationCriticalpatent/ES339157A1/en
Procedure for hardening gelatins, characterized in that the gelatin, especially in the form of photographic emulsions, is reacted with a compound of the formula **(See formula)** wherein R1 and R2 each represent a radical suitable for reaction linked by a heteroatom, preferably an oxygen or nitrogen atom, to the group -CO- with homopolar bond compounds. (Machine-translation by Google Translate, not legally binding)
ES339157A1966-04-121967-04-11Procedure for hardening gelatines. (Machine-translation by Google Translate, not legally binding)
ExpiredES339157A1
(en)
Procedure for obtaining new 1,2,3-triazolic fluorescent derivatives of 3-phenyl-cumarine (Machine-translation by Google Translate, not legally binding)
Procedure to obtain a diazotypy material with a photosensitive layer of one or two components. (Machine-translation by Google Translate, not legally binding)