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:
Aug. 08, 1995
Filed:
Feb. 10, 1994
Applicant:
Inventors:
Piet Kok, Gent, BE;
Jean-Marie Dewanckele, Drongen, BE;
Johan Loccufier, Zwijnaarde, BE;
Eddy Michiels, Duffel, BE;
Frank Michiels, Arendonk, BE;
Assignee:
Agfa-Gevaert, N.V., Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430622 ; 430621 ; 430642 ; 430539 ;
Abstract
New types of modified gelatins are disclosed, modified at part of the free carboxyl groups of the polypeptide chain, by the introduction of a new end-standing amino, sulphinic acid or thiol group. The modified gelatins show an enhanced reactivity towards vinylsulphonyl hardeners. The invention further includes hardened modified gelatin types and hydrophilic elements containing them. In particular, a differentially hardened multilayer element, preferably a photographic element, is disclosed.