Patent ID: 6197484
Filing Date: 2001-03-06
Classification: G03C

Abstract:
A method for making a homogeneous, single-part slurry color developer, comprising: dispersing one or more solid alkaline compounds and one or more solid p-phenylenediamine derivatives into a compatible water miscible organic solvent whichcontains substantially no water; and blending a compound represented by Formula (I) into the solvent-alkali-p-phenylenediamine derivative mixture ##STR8##where X is selected from the group consisting of --OR.sub.1, H and methyl; R.sub.1 is selected from the group consisting of H, acyl, alkyl, alkenyl, aryl, and heteroaromatic, which is either unsubstituted or substituted; R.sub.2 and R.sub.4 can be the same or different and are selected from the group consisting of H, alkyl, alkenyl, aryl, and heteroaromatic, which is either unsubstituted or substituted; R.sub.3 is selected from the group consisting of H, alkoxyl, alkyl, aryl, arylalkoxyl, aryloxycarbonyl, and alkoxycarbonyl, which is either unsubstituted or substituted; n is an integer from 1 to 5; m is 0 or 1.