Anthraquinone dyes, process for their preparation, and use thereof
US4501592A · kind A · utility
2Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1983 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Aug 10, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/924
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to dyes of the formula ##STR1## wherein X is oxygen or sulfur, R is hydrogen or C.sub.1 -C.sub.4 alkyl, Y is an unsubstituted or substituted aryl radical, n is 1, 2 or 3, the benzene ring A may be substituted by halogen and the benzene rings B and D may each independently be substituted by halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or a radical of the formula --O--CH.sub.2 CH.sub.2 --O--R.sub.1, wherein R.sub.1 is hydrogen, methyl or ethyl. These dyes are suitable for dyeing or printing natural or synthetic polyamide fibres.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.