Azo dyestuff sulfonic acid salts, process for their manufacture and their use
Номер патента: CA1142515A
Опубликовано: 08-03-1983
Автор(ы): Gert Hegar, Paul Lienhard
Принадлежит: Ciba Geigy Investments Ltd
Опубликовано: 08-03-1983
Автор(ы): Gert Hegar, Paul Lienhard
Принадлежит: Ciba Geigy Investments Ltd
Реферат: Abstract for the Disclosure Azo dyestuff sulfonic acid salts of the formula wherein A represents a carbocyclic or heterocyclic aromatic radical, B represents an aliphatic, cycloaliphatic or araliphatic amine, X represents a hydrogen atom or a substituted or unsubstituted alkyl group, a cycloalkyl, aralkyl or aryl group, Y represents a hydrogen or halogen atom, a nitro, cyano, acyl, sulfonic acid, arylsulfonyl, alkoxycarbonyl group or a substituted or unsubstituted alkyl, sulfa-moyl or carbamoyl group, Z represents a substituted or unsubstituted alkyl group or an aryl radical, m and n are 1 or 2.
Azo dyestuffs
Номер патента: GB1331445A. Автор: . Владелец: Imperial Chemical Industries Ltd. Дата публикации: 1973-09-26.