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:
Oct. 26, 1982
Filed:
Jan. 12, 1981
Applicant:
Inventors:
Nayyir F Irani, Rochester, NY (US);
Thomas O Maier, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430216 ; 430223 ; 430559 ; 430551 ; 430372 ; 430237 ;
Abstract
Photographic elements, diffusion transfer assemblages and processes are described which employ redox dye-releasing materials and a zinc salt, such as zinc oxide, in such a form, location and concentration that it will be diffusible in the element during processing, and the dye which is released from the redox dye-releasing material during processing will have an increased stability to light exposure. The zinc salts may be incorporated in the photosensitive portion of a photosensitive element, a processing composition or a cover sheet.