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US4717651A Expired / Lapsed US ⏱️ 0.0 years remaining

Color photographic light-sensitive material

Assignee: Fujifilm Holdings Corp
•
Filing: 1987-02-24
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Granted: 1988-01-05
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Expires: 2007-02-24
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Abstract

Abstract A silver halide color photographic light-sensitive material is disclosed, containing: (1) a compound containing two units selected from the group represented by general formula (I) or (II) in the molecule, or (2) a polymer containing a group represented by general formula (I) or (II) as a pendant. <IMAGE> Formula (I) <IMAGE> Formula (II) wherein R1, R2, R3, A, B and Q are defined herein. This compound or polymer functions as a color stain inhibitor in the light-sensitive material and provides various advantages; for example, it can efficiently remove the oxidized products of color developing agents, it can be used in light-sensitive materials reduced in thickness, and it is not subject to change in performance even after a long-term storage.

Inventors

  • 👤 Nobutaka Ohki
  • 👤 Yoshinobu Yoshida

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 22:14
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/39212; G03C7/39216

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 277 words
A silver halide color photographic light-sensitive material containing: a color stain inhibitor which is a polymer containing a group represented by general formula (I) or (II) as a pendant: ##STR25## wherein: A and B are each --CO-- or --SO 2 --, provided that at least one of A and B is --SO 2 --; R 1 is selected from the group consisting of a hydrogen atom, a halogen atom, and a substituted or unsubstituted group selected from the group consisting of an alkyl group, an alkoxyl group, an arylsulfonamide group, an alkylsulfonamide group, an acylamino group, an alkylthio group, an arylthio group, a heterocyclic thio group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoylamino group, an alkoxycarbonylamino group, a carbamoylamino group, an acyl group, a sulfonyl group, and a carbamoyl group; R 2 and R 3 is a substituted or unsubstituted group selected from the group consisting of an aryl group, an alkyl group, and an amino group, and wherein R 2 and R 3 may be the same or different; and wherein the polymer containing a group represented by general formula (I) or (II) as a pendant is a polymer having a repeating unit represented by general formula (V) or (VI): ##STR26## wherein: A, B, R 1 , R 2 , and R 3 are as defined in general formula (I) or (II); R 7 and R 8 are each a divalent connecting group; n is 0 or 1; and R 6 is selected from the group consisting of a hydrogen atom, a halogen atom, and an alkyl group, wherein said polymer does not form color by oxidative coupling with color developing agents during color development.
Claim 2
Dependent Claim 277 words
A silver halide color photographic light-sensitive material containing: a color stain inhibitor which is a polymer containing a group represented by general formula (I) or (II) as a pendant: ##STR25## wherein: A and B are each --CO-- or --SO 2 --, provided that at least one of A and B is --SO 2 --; R 1 is selected from the group consisting of a hydrogen atom, a halogen atom, and a substituted or unsubstituted group selected from the group consisting of an alkyl group, an alkoxyl group, an arylsulfonamide group, an alkylsulfonamide group, an acylamino group, an alkylthio group, an arylthio group, a heterocyclic thio group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoylamino group, an alkoxycarbonylamino group, a carbamoylamino group, an acyl group, a sulfonyl group, and a carbamoyl group; R 2 and R 3 is a substituted or unsubstituted group selected from the group consisting of an aryl group, an alkyl group, and an amino group, and wherein R 2 and R 3 may be the same or different; and wherein the polymer containing a group represented by general formula (I) or (II) as a pendant is a polymer having a repeating unit represented by general formula (V) or (VI): ##STR26## wherein: A, B, R 1 , R 2 , and R 3 are as defined in general formula (I) or (II); R 7 and R 8 are each a divalent connecting group; n is 0 or 1; and R 6 is selected from the group consisting of a hydrogen atom, a halogen atom, and an alkyl group, wherein said polymer does not form color by oxidative coupling with color developing agents during color development.
Claim 3
Dependent Claim 22 words
The material as claimed in claim 1, wherein A and B in general formula (I) or (II) are both --SO 2 --.
Claim 4
Dependent Claim 22 words
The material as claimed in claim 1, wherein A and B in general formula (I) or (II) are both --SO 2 --.
Claim 5
Dependent Claim 33 words
The material as claimed in claim 1, wherein the polymer containing a group represented by the general formula (I) or (II) as a pendant has a molecular weight of about 5,000 to 100,000.

References Cited (Backward Citations)

US3767412A Cited
US4013635A Cited
US4205987A Cited
US4277558A Cited
US4294918A Cited
US4334011A Cited
US4345025A Cited
US4447523A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-01-04 1991-07-06 1992-01-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-01-04 1995-07-06 1996-01-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-01-04 1999-07-06 2000-01-05 $7700.00 Window Closed / Lapsed

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