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EP0379893A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Colour-photographic recording material containing an emulsified compound providing colour

Assignee: Agfa Gevaert AG
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Filing: 1990-01-11
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Granted: —
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Expires: 2010-01-11
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Abstract

Abstract Translated from German Polypropylenoxide mit einem OH-Gehalt von 1 - 3 Gew.-% eignen sich als Ölbildner für nicht diffundierende farbgebende Verbindungen, z. B. Farbkuppler. Bei vergleichsweise hydrophilen Verbindungen, insbesondere bei Gelbkupplern mit einer -SO2-NH-Gruppierung oder einer phenolischen Hydroxylgruppe reduzieren sie die Kristallisationstendenz und die unerwünschte Diffusion in Nachbarschichten. Eine Verminderung des Gelatinegehalts wird ermöglicht. Die Lichtstabilität wird verbessert. Polypropylene oxides with an OH content of 1-3% by weight are suitable as oil formers for non-diffusing color compounds, e.g. B. color coupler. In the case of comparatively hydrophilic compounds, in particular in yellow couplers with an -SO2-NH group or a phenolic hydroxyl group, they reduce the tendency to crystallize and the undesired diffusion in neighboring layers. A reduction in the gelatin content is made possible. The light stability is improved.

Inventors

  • 👤 Fritz Dr. Nittel
  • 👤 Helmut Dr. Mäder
  • 👤 Werner Dr. Liebe

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 19:04
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3882

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