Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1997-07-15
1999-09-28
Letscher, Geraldine
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430502, 430503, 430558, 430557, 430567, 430523, 430627, 430551, G03C 108, G03C 726, G03C 732
Patent
active
059586613
ABSTRACT:
The invention relates to a color photographic element comprising a red light sensitive layer comprising a cyan dye forming coupler, a green light sensitive layer comprising a magenta dye forming coupler, a blue light sensitive layer comprising a yellow dye forming coupler, wherein said magenta dye forming coupler comprises ##STR1## wherein R.sub.a and R.sub.b independently represent H or a substituent; X is hydrogen or a coupling-off group; and Z.sub.a, Z.sub.b, and Z.sub.c are independently a substituted methine group, .dbd.N--, .dbd.C--, or --NH--, provided that one of either the Z.sub.a --Z.sub.b bond or the Z.sub.b --Z.sub.c bond is a double bond and the other is a single bond, and when the Z.sub.b --Z.sub.c bond is a carbon--carbon double bond, it may form part of an aromatic ring, and at least one of Z.sub.a, Z.sub.b, and Z.sub.c represents a methine group connected to the group R.sub.b, and wherein said blue light sensitive layer is the light sensitive layer nearest the top of the photographic element and contains an emulsion comprising greater than 90 percent silver chloride.
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Camp Alphonse D.
Chuhta Thomas A.
Rieger John B.
Roberts Michael R.
Eastman Kodak Company
Leipold Paul A.
Letscher Geraldine
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