Disazo bis-benzthiazolyl compounds
US4517358A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1982 |
| Grant date | May 14, 1985 |
| Priority date | — |
| Expiry date | Sep 14, 2002 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/28
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Cationic disazo compounds of the formula ##STR1## wherein K independently of one another are each a coupling component, PA1 R independently of one another are each an unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl group, PA1 R.sub.1 independently of one another are each hydrogen, unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl, unsubstituted or substituted C.sub.1 -C.sub.4 -alkoxy, or halogen, and PA1 An is an anion are useful as dyes, in particular as paper dyes, whereby dyeings fast to water are obtained. The dyeings obtained have very good fastness to light and to wet processing. Disazo compounds of the formula ##STR2## wherein K and R, are as defined above are useful as disperse dyes and as intermediates in the preparation of the above cationic disazo compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.