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JPS5664339A Expired / Lapsed JP ⏱️ 0.0 years remaining

Silver halide color phtographic material

Assignee: Konica Minolta Inc
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Filing: 1979-10-29
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Granted: —
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Expires: 1999-10-29
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Abstract

Abstract PURPOSE:To provide superior developability without causing color turbidity as well as fogging and contrast lowerng with respect to photographic performance by adding a specified 1-aryl-3-pyrazolidone deriv. to a photographic constituent layer on a support. CONSTITUTION:A 1-aryl-3-pyrazolidone deriv. such as 4-benzoyloxymethyl-4-methyl-1-phenyl-3-pyrazolidone having a substitutent represented by the formula (where R is optionally substituted alkyl, alkenyl, cycloalkyl, aryl or a heterocyclic group and X is -CO-, -OCO-, -OCOCO-, -SO2- or -NHCO-) at the 4-position is dispersed in a hydrophilic colloidal soln., ad this dispersion is added to a photographic constituent layer such as a photosensitive silver halide emulsion layer, a middle layer, a yellow filter layer, a protective layer or an antihalation layer.

Inventors

  • 👤 Keiji Obayashi
  • 👤 Akihiko Miyamoto
  • 👤 Osamu Sasaki

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-29 12:05
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/3924; G03C7/39244; G03C7/39252

Claims Analysis

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References Cited (Backward Citations)

US3039869A Cited

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