Yellow azopyrazolone dye releasing redox compounds for...

Details Yellow azopyrazolone dye releasing redox compounds for... Yellow azopyrazolone dye releasing redox compounds for...

C - Chemistry, Metallurgy

09

B

96/136, 260/172.

C09B 29/00 (2006.01) C09B 29/50 (2006.01) C09B 43/00 (2006.01) G03C 1/10 (2006.01) G03C 8/10 (2006.01)

Patent

CA 1047030

Abstract of the Disclosure A photosensitive element comprising a support having thereon at least one photosensitive silver halida emulsion layer and one of said layers having associated therewith a yellow image dye-releasing compound having a formula as follows I Image or II Image wherein Car represents a sulfonamidophenol or sulfonamidonaphthol carrier moiety which, as a function of oxidation under alkaline condi- tions, releases a diffusible dye from said compound. X represents a bivalent linking group; R represents a 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; H represents hydrogen, a solubilizing group or precursor thereof.

255587

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