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:
Dec. 05, 1978
Filed:
Jun. 06, 1977
Applicant:
Inventors:
Marcel J Monbaliu, Mortsel, BE;
Raphael K Van Poucke, Berchem, BE;
Assignee:
AGFA-GEVAERT, N.V., Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
9610 / ; 96114 ;
Abstract
Polymeric color couplers with improved light stability comprising in addition to color coupler units, competing coupler units and one or more copolymerized non-coupling monomeric units, thereof the weight ratio of the color coupler units to the competing coupler units is between 10:1 and 1:2 and the weight ratio of the copolymerized non-coupling monomeric units is at least 5%.