DIR couplers with hydrolyzable inhibitors for use in high pH processed films
AssigneeEastman Kodak Company
InventorsJ. Ramon Vargas, Paul A. Burns, Phillip D. Knight
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Abstract
A silver halide photographic light-sensitive material for development in a development solution at a pH of at least 11.4 is disclosed. The material comprises a support having a silver halide emulsion layer comprising a compound capable of releasing a development inhibitor having a decomposition half-life in the range of above 4 to 225 hours at pH 10, said inhibitor after decomposition having substantially no photographic inhibitor properties, the compound having the formula: CAR--(TIME).sub.n --INH--L--Y (I).
Claims29
A silver halide photographic light-sensitive material for development in a development solution at a pH of at least 11.4, the material comprising a support having a silver halide emulsion layer comprising a compound capable of releasing a development inhibitor having a decomposition half-life in the range of above 4 to 225 hours at pH 10, said inhibitor after decomposition having substantially no photographic inhibitor properties, the compound having the formula:
- CAR--(TIME).sub.n --INH--L--Y (I)
- wherein:
- CAR is a carrier moiety releasing --(TIME).sub.n --INH--L--Y by reaction with oxidized developer;
- TIME is a timing group;
- INH--L--Y is a development inhibitor moiety selected from the group consisting of oxazole, thiazole, diazole, oxathiazole, triazole, thiatriazole, tetrazole, benzimidazole, indazole, isoindazole, mercaptothiazole, mercaptotriazole, mercaptothiadiazole, mercaptotetrazole, selenotetrazole, mercaptooxadiazole, selenobenzothiazole, mercaptobenzoxazole, selenobenzoxazole, mercaptobenzimidazole, selenobenzimidazole, benzodiazole, or benzisodiazole such that an inhibitor moiety comprising H--INH--L--Y has a calculated log P of greater than 0.4 and
- n is 0, 1 and 2;
- L is a divalent connecting group containing a chemical bond which is broken in a photographic developing solution and is selected from:
- --CO.sub.2 --, --NR.sub.e CO.sub.2 --, --SO.sub.2 O--, --OCH.sub.2 CH.sub.2 SO.sub.2 --, --OC(.dbd.O)O--, or --NR.sub.e C(.dbd.O)C(.dbd.O)--, where R.sub.e is H, an alkyl group, an alkenyl group, an aryl group, or a heterocyclic group;
- and
- Y represents an alkyl group, an alkenyl group, an aryl group, or a heterocyclic group.
A color reversal silver halide photographic light-sensitive material suitable for development in a color reversal process, wherein said process includes a color developer solution at a pH of at least 11.4, the material comprising a support having a silver halide emulsion layer comprising a compound capable of releasing a development inhibitor having a decomposition half-life in the range of above 4 to 225 hours at pH 10, said inhibitor after decomposition having substantially no photographic inhibitor properties, the compound having formula:
- CAR--(TIME).sub.n --INH--L--Y (I)
- wherein:
- CAR is a carrier moiety released from --(TIME).sub.n --INH--L--Y by reaction with oxidized developer;
- TIME is a timing group;
- INH--L--Y is a development inhibitor moiety selected from the group consisting of oxazole, thiazole, diazole, oxathiazole, triazole, thiatriazole, tetrazole, benzimidazole, indazole, isoindazole, mercaptothiazole, mercaptotriazole, mercaptothiadiazole, mercaptotetrazole, selenotetrazole, mercaptooxadiazole, selenobenzothiazole, mercaptobenzoxazole, selenobenzoxazole, mercaptobenzimidazole, selenobenzimidazole, benzodiazole, or benzisodiazole such that an neutral inhibitor moiety comprising H--INH--L--Y has a calculated log P of greater than 0.4 and
- n is 0, 1 or 2;
- L is a divalent connecting group containing a chemical bond which is broken in a photographic developing solution and is selected from --CO.sub.2 --, --NR.sub.e CO.sub.2 --, --SO.sub.2 O--, --OCH.sub.2 CH.sub.2 SO.sub.2 --, --OC(.dbd.O)O--, or --NR.sub.e C(.dbd.O)C(.dbd.O)--, where R.sub.e is H, an alkyl group, an alkenyl group, an aryl group, or a heterocyclic group;
- and
- Y represents an alkyl group, an alkenyl group, an aryl group, or a heterocyclic group.
The silver halide photographic light-sensitive material for development in a development solution at a pH of at least 11.4, the material comprising a support having a silver halide emulsion layer comprising a compound capable of releasing a development inhibitor having a decomposition half-life in the range of above 4 to 225 hours at pH 10, said inhibitor after decomposition having substantially no photographic inhibitor properties, the compound having the formula:
- CAR--(TIME).sub.n --INH--L--Y (I)
- wherein:
- CAR is a carrier moiety releasing --(TIME).sub.n --INH--L--Y by reaction with oxidized developer;
- TIME is a timing group;
- INH--L--Y is a development inhibitor moiety selected from the group consisting of oxazole, thiazole, diazole, oxathiazole, triazole, thiatriazole, tetrazole, benzimidazole, indazole, isoindazole, mercaptothiazole, mercaptotriazole, mercaptothiadiazole, mercaptotetrazole, selenotetrazole, mercaptooxadiazole, selenobenzothiazole, mercaptobenzoxazole, selenobenzoxazole, mercaptobenzimidazole, selenobenzimidazole, benzodiazole, or benzisodiazole, such that an inhibitor moiety comprising H--INH--L--Y has a calculated log P of greater than 0.4 and
- n is 0, 1 or 2;
- L is a divalent connecting group containing a chemical bond which is broken in a photographic developing solution;
- and
- Y represents an alkyl group, an alkenyl group, an aryl group, or a heterocyclic group.
A color reversal silver halide photographic light-sensitive material suitable for development in a color reversal process, wherein said process includes a color developer solution at a pH of at least 11.4, the material comprising a support having a silver halide emulsion layer comprising a compound capable of releasing a development inhibitor having a decomposition half-life in the range of above 4 to 225 hours at pH 10, said inhibitor after decomposition having substantially no photographic inhibitor properties, the compound having formula:
- CAR--(TIME).sub.n --INH--L--Y (I)
- wherein:
- CAR is a carrier moiety released from --(TIME).sub.n --INH--L--Y by reaction with oxidized developer;
- TIME is a timing group;
- INH--L--Y is a development inhibitor moiety selected from the group consisting of oxazole, thiazole, diazole, oxathiazole, triazole, thiatriazole, tetrazole, benzimidazole, indazole, isoindazole, mercaptothiazole, mercaptotriazole, mercaptothiadiazole, mercaptotetrazole, selenotetrazole, mercaptooxadiazole, selenobenzothiazole, mercaptobenzoxazole, selenobenzoxazole, mercaptobenzimidazole, selenobenzimidazole, benzodiazole, or benzisodiazole such that an neutral inhibitor moiety comprising H--INH--L--Y has a calculated log P of greater than 0.4 and
- n is 0, 1 or 2;
- L is a divalent connecting group containing a chemical bond which is broken in a photographic developing solution;
- and
- Y represents an alkyl group, an alkenyl group, an aryl group, or a heterocyclic group.
Dependencies are inferred from the claim text.