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:
Feb. 11, 1992
Filed:
Dec. 15, 1989
Applicant:
Inventors:
Sylviane Dumas, Isle sur la Sorgue, FR;
Georges Takerkart, Isle-sur-Sorgue, FR;
Assignee:
Sanofi, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09H / ;
U.S. Cl.
CPC ...
530354 ; 106125 ; 106135 ; 106136 ; 430621 ;
Abstract
The present invention relates to modified gelatin containing polyfluorinated substituents grafted on to the protein chain. It further relates to the process for the preparation of this modified gelatin, which consists in reacting a polyfluorinated derivative containing a group capable of reacting with the OH or NH.sub.2 groups of the gelatin in aqueous solution. Application: photographic film preparations.