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.

Date of Patent:
Nov. 05, 1996

Filed:

Sep. 08, 1995
Applicant:
Inventors:

J org Siegel, Leverkusen, DE;

Peter Hankofer, K oln, DE;

Hans-Ulrich Borst, Elsdorf, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430506 ; 430507 ; 430511 ; 430600 ; 430601 ; 430603 ; 430610 ; 430613 ; 430614 ; 430615 ;
Abstract

A negatively developing color photographic silver halide material containing at least two blue-sensitive, yellow-coupling silver halide emulsion layers, at least two green-sensitive, magenta-coupling silver halide emulsion layers, at least two red-sensitive, cyan-coupling silver halide emulsion layers and a yellow filter layer on a transparent support, the layers of the same spectral sensitivity having different photographic sensitivities and the blue-sensitive layers being arranged further from the support than the yellow filter layer and the green-sensitive and red-sensitive layers being arranged nearer the support than the yellow filter layer, is distinguished by improved development kinetics if at least one of the green-sensitive layers of highest sensitivity and the red-sensitive layers of highest sensitivity contains a crown ether.


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