Methods for dyeing or printing using amino-anthraquinone reactive disperse dyes
US4097229A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1977 |
| Grant date | Jun 27, 1978 |
| Priority date | — |
| Expiry date | Mar 1, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B1/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides useful new fibre-reactive disperse dyes of the formula (1) ##STR1## wherein R.sub.1 represents hydrogen or alkyl, PA1 R.sub.2 represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted phenyl, and R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, can also form a 5- to 7-membered heterocyclic ring, PA1 R.sub.3 represents hydrogen or alkyl, PA1 R.sub.4 represents an alkyl radical of 1 to 6 carbon atoms which is substituted in .alpha.- and .beta.-position, preferably only in .alpha.-position, by halogen, for example bromine and above all chlorine, or represents an .alpha.,.beta.-unsaturated alkene radical which can be substituted in .alpha.- or .beta.-position by halogen, such as bromine and above all chlorine, PA1 A represents an alkylene or cycloalkylene radical which optionally contains oxygen or sulphur, PA1 X represents hydrogen, chlorine, bromine, cyano or COOR.sub.5, and PA1 R.sub.5 represents alkyl, A process for the manufacture of these anthraquinone dyes and a method of using them for dyeing and printing organic fibre material, in particular natural and synthetic polyamides, and the material w…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.