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EP0055838A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Liquid cristalline material containing disazodyes

Assignee: Bayer AG
•
Filing: 1981-12-18
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Granted: —
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Expires: 2001-12-18
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Abstract

Abstract Translated from German Flüssigkristallines Material enthaltend einen Disazo= . farbstoff der Formel in der R 1 Alkyl, Aralkyl, Cycloalkyl, Aryl, Alkylsulfonyl, Aralkylsulfonyl, Cycloalkylsulfonyl, Arylsulfonyl, Acyl oder eine Gruppe R-NH-CO- oderR-O-CO-, bei der R für Alkyl, Aralkyl, Cycloalky', Aryl steht, wobei die genannten Reste substituiert sein können, bezeichnet, n O oder 1 ist, Y -O- bezeichnet und R 2 für n=1 die oben angegebener Bedeutungen für R 1 hat und für n=0 Wasserstoff ist und R 3 , R 4 , R 5 , R 6 Wasserstoff, gegebenenfalls substituiertes Alkyl, Alkoxy, Halogen oder Cyan bezeichnen. Liquid crystalline material containing a disazo logo CNRS logo INIST. dye of the formula in the R 1 is alkyl, aralkyl, cycloalkyl, aryl, alkylsulfonyl, aralkylsulfonyl, cycloalkylsulfonyl, arylsulfonyl, acyl or a group R-NH-CO- or R-O-CO-, in which R is alkyl, aralkyl, cycloalky ', aryl, where the radicals mentioned can be substituted, n is O or 1, Y denotes -O- and R 2 for n = 1 has the meanings given above for R 1 and for n = 0 is hydrogen and R 3 , R 4 , R 5 , R 6 denote hydrogen, optionally substituted alkyl, alkoxy, halogen or cyan.

Inventors

  • 👤 Uwe Dr. Claussen

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 01:58
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/28; C09B31/00; C09B31/02; C09B31/06; C09B31/062; C09K; C09K19/00; C09K19/52; C09K19/60; C09K19/601

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