Color developer compositions containing improved yellow...

Details Color developer compositions containing improved yellow... Color developer compositions containing improved yellow...

G - Physics

03

C

96/61, 260/474.1

G03C 1/00 (2006.01) G03C 7/305 (2006.01)

Patent

CA 1041116

Abstract Color developer compositions are described which contain, dissolved therein, both (a) an organic aromatic primary amino developing agent and (b) a yellow-dye-forming coupler having the structure. Image wherein R is a branched alkyl group containing 3 to 6 carbon atoms; X is C1 or Br; Y is X, hydrogen or alkyl (1 to 8 carbon atoms); and A and B differ and are either H or -COOM, wherein M is a photographically inactive cation or a methyl or ethyl group. Use or such compositions results in more efficient coupler usage and color products having yellow dyes with improved aging characteristics. The invention encompasses such liquid developer compositions, blends of (a) and (b), and the yellow dye-forming couplers, per se. - 1 -

219819

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