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US4898811A Expired / Lapsed US ⏱️ 0.0 years remaining

Color photographic silver halide material with sulfonylphenol oil former

Assignee: Agfa Gevaert AG
•
Filing: 1988-12-02
•
Granted: 1990-02-06
•
Expires: 2008-12-02
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Abstract

Abstract A color photographic silver halide material which, in at least one silver halide emulsion layer, contains a magenta coupler corresponding to formula I or (II) below ##STR1## in which R 1 represents alkyl, aryl or a ballast group, R 2 represents a ballast group, alkyl or aryl, Z represents hydrogen or a group releasable on reaction with the developer oxidation product, and a compound corresponding to formula (III) ##STR2## in which R 3 represents alkyl, alkoxy, aryl, optionally substituted amino or the residue of a heterocycle, R 4 represents COR 5 , NHR 6 , S(O) n R 7 , K 5 represents OR 8 , NHR 8 , alkyl, aryl or a heterocycle, R 6 represents SO 2 R 8 , COR 8 or CONHR 8 , R 7 represents alkyl, aryl or NHR 3 , R 8 represents alkyl or aryl and n=0, 1 or 2, with the exception of compounds in which R 3 is a carboxymethoxyphenyl, carboxymethoxy, alkoxycarbonylmethoxy or alkoxycarbonylmethoxyphyl radical substituted at the methylene group.

Inventors

  • 👤 Erich Wolff
  • 👤 Dieter Lowski
  • 👤 Harry Elias

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 12:51
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/39236; G03C7/3003; G03C7/3005; G03C7/3008; G03C7/301; G03C7/388; G03C7/3885

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 169 words
A color photographic silver halide material which, in at least one silver halide emulsion layer, contains a magenta coupler corresponding to formula (I) or (II) in which R 1 represents alkyl, aryl or a ballast group, R 2 is a ballast group, alkyl or aryl, Z is hydrogen or a group releasable on reaction with the developer oxidation product, and a compound corresponding to formula (III) ##STR131## in which R 3 represents alkyl, alkoxy, aryl, optionally substituted amino or the residue of a heterocycle, R 4 represents COR 5 , NHR 6 , S(O) n R 7 R 5 represents OR 8 , NHR 8 , alkyl, aryl or a heterocycle, R 6 represents SO 2 R 8 , COR 8 or CONHR 8 , R 7 represents alkyl, aryl or NHR 8 , R 8 represents alkyl or aryl and n is 0, 1 or 2, with the exception of compounds in which R 3 represents a carboxymethoxyphenyl, carboxymethoxy, alkoxycarbonylmethoxy or alkoxycarbonylmethoxyphenyl radical substituted at the methylene group.
Claim 2
Dependent Claim 169 words
A color photographic silver halide material which, in at least one silver halide emulsion layer, contains a magenta coupler corresponding to formula (I) or (II) in which R 1 represents alkyl, aryl or a ballast group, R 2 is a ballast group, alkyl or aryl, Z is hydrogen or a group releasable on reaction with the developer oxidation product, and a compound corresponding to formula (III) ##STR131## in which R 3 represents alkyl, alkoxy, aryl, optionally substituted amino or the residue of a heterocycle, R 4 represents COR 5 , NHR 6 , S(O) n R 7 R 5 represents OR 8 , NHR 8 , alkyl, aryl or a heterocycle, R 6 represents SO 2 R 8 , COR 8 or CONHR 8 , R 7 represents alkyl, aryl or NHR 8 , R 8 represents alkyl or aryl and n is 0, 1 or 2, with the exception of compounds in which R 3 represents a carboxymethoxyphenyl, carboxymethoxy, alkoxycarbonylmethoxy or alkoxycarbonylmethoxyphenyl radical substituted at the methylene group.
Claim 3
Dependent Claim 27 words
A color photographic silver halide material as claimed in claim 1, in which Z is halogen, an aryloxy group, an arylthio group or a heterocyclic thio group.
Claim 4
Dependent Claim 72 words
A color photographic silver halide material as claimed in claim 1, in which the magenta coupler corresponds to formula (IV) ##STR132## in which Z' is a group releasable by reaction with the developer oxidation product, R 9 and R 10 represent hydrogen or alkyl, R 11 represents alkyl, halogen or hydroxy, l, p and q each have a value of 0 to 4 and r has a value of 0 or 1.
Claim 5
Dependent Claim 38 words
A color photographic silver halide material as claimed in claim 3, in which l has a value of 0 to 3, p has a value of 1 to 3 and q has a value of 1 or 2.
Claim 6
Dependent Claim 31 words
A color photographic silver halide material as claimed in claim 1, in which the compound corresponds to the following formula ##STR133## and R 3 and R 4 are as already defined.

References Cited (Backward Citations)

US4207393A Cited
US4363873A Cited
US4513082A Cited
US4562146A Cited
US4774166A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-02-05 1993-08-07 1994-02-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-02-05 1997-08-07 1998-02-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-02-05 2001-08-07 2002-02-06 $7700.00 Window Closed / Lapsed

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