Patent ID: 6699651
Filing Date: 2004-03-02
Classification: B41M,C07D,G03C,Y10S

Abstract:
A composition comprising a base precursor that is the salt of an organic base with an arylsulfonylacetic acid having the following structure: wherein the group Z individually represents the non-metallic atoms necessary to complete a substituted or unsubstituted ring system containing at least one 5- or 6-membered imide nucleus or a 5- or 6-membered imide nucleus that can be fused with additional substituted or unsubstituted rings;wherein each of R2 and R3 is a monovalent group selected from the group consisting of hydrogen, an alkyl group, an alkenyl group, a cycloalkyl group, an aralkyl group, an aryl group and a heterocyclic group, wherein each of the monovalent groups may have one or more substituent groups; said base precursor being further in thermal processing association with a photographically useful compound selected from the group consisting of filter dyes, blocked photograhically useful groups, couplers, developing agents, and electron transfer agents.