Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH354869Aexternal-prioritypatent/CH555441A/xx
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES377277A1publicationCriticalpatent/ES377277A1/en
Procedure for dyeing natural protein fibers, characterized by dyeing with monoazoic or disazoic fibroreactive, chromatable dyes, which in ortho positions on both sides of an azo bridge, at least, carry groups capable of complex formation and containing at least a group of water-solubilizing sulphonic acid, not capable of complex formation, and at least one fibroreactive acylaminal group derived from aliphatic monocarboxylic acids having 2 to 4 carbon atoms or from pentagonal to hexagonal heterocycles, in the presence of polyglycol ether derivatives of monodiamines or diamines, in which a nitrogen atom, at least, is substituted with a hydrocarbon radical of 16 to 22 carbon atoms, and of a chromium donor agent, at temperatures between 80 and 110º c. (Machine-translation by Google Translate, not legally binding)
ES377277A1969-03-101970-03-09Procedure for dying natural protein fibers. (Machine-translation by Google Translate, not legally binding)
ExpiredES377277A1
(en)
Procedure for the preparation of new azoic compounds despised of groups of sulphonic acid. (Machine-translation by Google Translate, not legally binding)