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:
Jun. 10, 1980
Filed:
Oct. 30, 1978
Daniel D Shiao, Victor, NY (US);
Lawrence R Morrow, Churchville, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An activator-stabilizer precursor which comprises a certain acylhydrazine which releases a base moiety upon being heated to a temperature above about 130.degree. C. provides improved heat developable and heat stabilizable photographic materials comprising, in binder, and in reactive association, (a) a photosensitive silver salt, (b) a photosensitive silver salt developing agent, and (c) a stabilizing concentration of the described activator-stabilizer precursor having an acid portion and a base portion. The heat developable and heat stabilizable photographic element provides essential freedom from visual crystal formation in the processed photographic element. After imagewise exposure, a developed and stabilized image can be produced in the photographic element by heating the element to processing temperature.