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EP0055222A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Salts of cationic anthraquinone dyes, their preparation and their use

Assignee: Novartis AG
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Filing: 1981-12-21
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Granted: —
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Expires: 2001-12-21
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Abstract

Abstract Translated from German Monokationische Farbsalze der Formel worin R H, Alkyl, Aryl, Aralkyl oder Cycloalkyl, A Alkylen, Arylen oder Aralkylen, R 1 , R 2 , R 3 Alkyl oder Aralkyl bilden. Die Farbsalze eignen sich vorzüglich für die Spinnfärbung von Polyacrylnitril. Man erhält reinblau gefärbte transparente Fasern mit ausgezeichneter Echtheit. Monocationic color salts of the formula wherein RH, alkyl, aryl, aralkyl or cycloalkyl, A alkylene, arylene or aralkylene, R 1 , R 2 , R 3 form alkyl or aralkyl. The color salts are ideal for spin dyeing polyacrylonitrile. Pure blue colored transparent fibers with excellent fastness are obtained.

Inventors

  • 👤 Peter Dr. Loew

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 20:15
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/207

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