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:
Nov. 19, 1996
Filed:
Apr. 28, 1995
Jon N Eikenberry, Rochester, NY (US);
Robert E Bernard, Victor, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A photographic element comprising a support having situated thereon a silver halide emulsion, the emulsion comprising an alkynylamine compound of the formula: wherein Z represents atoms necessary to complete a 5 to 10-membered heterocyclic ring system, R.sup.1 represents hydrogen or an alkyl of from 1 to 5 carbon atoms, and R.sup.2 represents hydrogen, or an alkyl, aryl, heteroaryl, carbocyclic or heterocyclic group; and at least one dihydroxy aryl compound represented by formula II or III: ##STR1## wherein R.sup.3 to R.sup.12 are independently selected from the group consisting of hydrogen, hydroxy, sulfonate, or an alkyl of from 1 to 5 carbon atoms, and wherein at least two of such groups represent a hydroxy group.