Coupler and image dye light-stabilizing systems
AssigneeEastman Kodak Company
InventorsAlbert J. Mura, Shari L. Eiff, Gary M. Russo
Life of this patent
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Abstract
A photographic element comprises a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I1: wherein L is a linking moiety; X is a heteroatom group selected from O, S, or NR′ where R′ is H or a substituent; w is 0 or 1; R is hydrogen or a substituent group; n is an integer from 0 to 5; and ST represents a stabilizer selected from the group consisting of: A. a thiomorpholine dioxide; B. a dialkoxy aromatic group linked through a phenolic oxygen; C. a dialkoxy aromatic group linked through the aromatic ring; D. a sulfonamido group; E. a hydroxyphenyl benzotriazole group; and F. a phenolic group.
Claims21
A photographic element comprising a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I1:
- wherein
- L is a linking moiety;
- X is a heteroatom group selected from O, S, or NR′ where R′ is H or a substituent;
- w is 0 or 1;
- R is hydrogen or a substituent group;
- n is an integer from 0 to 5;
- and
- ST represents a stabilizer selected from the group consisting of:
- A. a thiomorpholine dioxide;
- B. a dialkoxy aromatic group linked through a phenolic oxygen;
- C. a dialkoxy aromatic group linked through the aromatic ring;
- D. a sulfonamido group;
- E. a hydroxyphenyl benzotriazole group;
- and
- F. a phenolic group.
Dependencies are inferred from the claim text.