Process for dyeing or printing cellulosic fibre materials and novel reactive dyes
US5964900A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1998 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Jun 17, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/921
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for dyeing or printing cellulosic fiber materials, which comprises using at least one reactive dye of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently of one another hydrogen, halogen, sulfo, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, PA1 R.sub.5 and R.sub.6 are each independently of the other hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkanoylamino, ureido, or C.sub.1 -C.sub.4 alkoxy which is unsubstituted or substituted in the alkyl moiety by hydroxyl, sulfato or C.sub.1 -C.sub.4 alkoxy, PA1 Z.sub.1 and Z.sub.2 are each independently of the other vinyl or the radical --CH.sub.2 --CH.sub.2 --U, and PA1 U is a leaving group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.