Photographic materials and process comprising polymeric...

Details Photographic materials and process comprising polymeric... Photographic materials and process comprising polymeric...

G - Physics

03

C

402/1, 96/148

G03C 7/32 (2006.01) C08F 20/60 (2006.01) G03C 7/327 (2006.01)

Patent

CA 1270346

PHOTOGRAPHIC MATERIALS AND PROCESS COMPRISING POLYMERIC COUPLERS ABSTRACT OF THE DISCLOSURE Photographic silver halide materials comprise a polymeric coupler which is at least a copolymer having a repeating unit (A) which comprises at least one coupler moiety (COUP) capable of forming a dye upon coupling with an oxidized color developing agent and at least one repeating unit (B) which is derived from a monomer which is an alkoxyalkylacry- late. The polymeric coupler optionally comprises at least one repeating unit (C) derived from such monomers as those useful for repeating unit (A), those useful for repeating unit (B) and other mono- mers which can be selected to provide useful physical and chemical properties. The photographic material comprising such a polymeric coupler upon exposure and processing enables formation of a dye image having increased dye density.

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