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:
Jul. 11, 1989
Filed:
Oct. 19, 1987
Immo Boie, Leichlingen, DE;
Manfred Peters, Leverkusen, DE;
Wolfgang Himmelmann, Leverkusen, DE;
Thomas Kaluschke, Leichlingen, DE;
Gunther Schenk, Cologne, DE;
Kaspar Wingender, Leverkusen, DE;
Karl Frank, Leverkusen, DE;
AGFA-Gevaert Aktiengessellschaft, Leverkusen, DE;
Abstract
Water-soluble substantially non-hardening aldehydes or water-soluble substantially non-hardening aldehyde precursor compounds are suitable as fog-reducing compounds for the photographic dye diffusion transfer process in which an imagewise-exposed color photographic recording material containing light-sensitive silver salt and a non-diffusing dye-releasing compound in at least one binder layer arranged on a layer support, is developed, preferably under the effect of heat, to produce a diffusible dye image and in which the diffusible dye image is transferred to an image receptor layer.