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:
Mar. 22, 1977
Filed:
Jun. 27, 1975
Jan R Haase, Rochester, NY (US);
Carl H Eldredge, Rochester, NY (US);
Richard A Landholm, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer and one of said layers having associated therewith a yellow image dye-releasing compound having a formula as follows ##STR1## wherein Car represents a sulfonamidophenol or sulfonamidonaphthol carrier moiety which, as a function of oxidation under alkaline conditions, releases a diffusible dye from said compound. X represents a bivalent linking group of the formula --R.sup.1 --L.sub.n --R.sup.1.sub.p -- where each R.sup.1 can be the same or different and each represents alkylene phenylene; or substituted phenylene; L represents a bivalent radical selected from oxy, carbonyl, carboxamido, carbamoyl, sulfonamido, sulfamoyl, sulfinyl or sulfonyl; n is an integer having a value of 0 or 1; p is 1 when n equals 1 and p is 1 or 0 when n equals 0, provided that when p is 1 the carbon content of the sum of both R radicals does not exceed 14 carbon atoms; R represents hydrogen or alkyl; J represents a bivalent radical selected from sulfonyl or carbonyl; m and q each represent an integer having a value of 0 or 1; E represents hydrogen, halogen, alkyl or alkoxy; Z represents hydrogen or an electron withdrawing group selected from cyano, trifluoromethyl, alkylsulfonyl, substituted alkylsulfonyl, phenylsulfonyl, or substituted phenylsulfonyl; a carboxylic acid ester having the formula --COOR.sup.2 wherein R.sup.2 is alkyl, phenyl or substituted phenyl; sulfo, a sulfamoyl radical having the formula --SO.sub.2 NR.sup.3 R.sup.4 wherein R.sup.3 represents hydrogen or alkyl, and R.sup.4 represents hydrogen, alkyl, substituted alkyl; benzyl, phenyl, substituted phenyl; alkylcarbonyl, or phenylcarbonyl, with the proviso that the carbon content of the sum of R.sup.3 and R.sup.4 not exceed 14 carbon atoms; a carbamoyl radical having the formula --CON(R.sup.3).sub.2 wherein each R.sup.3 can be the same or different and is as described previously; and M represents hydrogen, a solubilizing group or precursor thereof selected from carboxy, sulfo, a sulfamoyl radical as described for Z or a carboxylic acid ester as described for Z.