Cyan coupler, and stabilizer-containing photographic element and process
AssigneeEastman Kodak Company
InventorsJames S. Honan, Rakesh Jain, John W. Harder, William J. Begley
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Abstract
Disclosed is a photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith: (A) a phenolic cyan dye-forming "NB coupler"; (B) a high boiling solvent having Formula (II): R.sup.3 OO--C--(--G--)--C--OO--R.sup.4 (II) wherein: R.sup.3 and R.sup.4 represent independently selected alkyl or aryl groups; and G represents an alkyl (including cycloalkyl and aralkyl) containing linking group; and (C) a stabilizer having Formula (III): ##STR1## wherein each Y is an independently selected substituent and m is 0 to 4; and each T is an independently selected substituent and p is 0 to 4.
Claims49
A photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith:
- (A) a phenolic cyan dye-forming "NB coupler";
- (B) a high boiling solvent having Formula (II):
- R.sup.3 OO--C--(--G--)--C--OO--R.sup.4 (II)
- wherein:
- R.sup.3 and R.sup.4 represent independently selected alkyl or aryl groups;
- and
- G represents an alkyl containing linking group.
A photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith:
- (A) a cyan dye-forming coupler of formula (I) ##STR20## wherein:
- R.sub.1 and R.sub.2 are independently hydrogen or an alkyl group;
- and
- R" and R'" are independently an alkyl or aryl group or a 5-10 membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen, and sulfur, and
- (B) a high boiling solvent having Formula (II):
- R.sup.3 OO--C--(--G--)--C--OO--R.sup.4 (II)
- wherein:
- R.sup.3 and R.sup.4 represent independently selected alkyl or aryl groups;
- and
- G represents an alkyl containing linking group.
A photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith:
- (A) a phenolic cyan dye-forming "NB coupler";
- (B) a high boiling solvent having Formula (II):
- R.sup.3 OO--C--(--G--)--C--OO--R.sup.4 (II)
- wherein:
- R.sup.3 and R.sup.4 represent independently selected alkyl or aryl groups;
- and
- G represents an alkyl (including cycloalkyl and aralkyl) containing linking group;
- and
- (C) a stabilizer having Formula (III):
- ##STR21## wherein each Y is an independently selected substituent and m is 0 to 4;
- and
- each T is an independently selected substituent and p is 0 to 4.
A photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith:
- (A) a cyan dye-forming coupler of formula (I) ##STR24## wherein:
- R.sub.1 and R.sub.2 are independently hydrogen or an alkyl group;
- and
- R" and R'" are independently an alkyl or aryl group or a 5-10 membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen, and sulfur;
- (B) a high boiling solvent having Formula (II):
- R.sup.3 OO--C--(--G--)--C--OO--R.sup.4 (II)
- wherein:
- R.sup.3 and R.sup.4 represent independently selected alkyl or aryl groups;
- and
- G represents an alkyl (including cycloalkyl and aralkyl) containing linking group;
- and
- (C) a stabilizer having Formula (III):
- ##STR25## wherein each Y is an independently selected substituent and m is 0 to 4;
- each T is an independently selected substituent and p is 0 to 4.
Dependencies are inferred from the claim text.