Dyeing assistant preparations and their use for dyeing wool
US5914445A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1997 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Sep 23, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/917
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to novel dyeing assistant preparations comprising, as component (a), at least one amine oxide of the formula ##STR1## in which R is an aliphatic radical having 8 to 24 carbon atoms and PA1 R.sub.1 is an aliphatic radical which is unsubstituted or substituted by hydroxyl and has 1 to 24 carbon atoms, preferably 1 to 6 carbon atoms, PA1 as component (b), at least one compound of the formula EQU R.sub.2 --U--(R.sub.3 --O).sub.m --W (2), PA1 in which PA1 R.sub.2 is an aliphatic radical having 8 to 24 carbon atoms, PA1 R.sub.3 is alkylene having 2 to 4 carbon atoms, PA1 U is --O-- or ##STR2## in which Z is a direct bond, (R.sub.3 --O)).sub.r or C.sub.1 -C.sub.6 alkylene and PA1 W.sub.1 is hydrogen or C.sub.1 -C.sub.6 alkyl which is unsubstituted or substituted by hydroxyl, carboxyl, isocyanato, phenyl, benzyloxymethylene or phenethyloxymethylene, m and r independently of one another are a number from 2 to 25, PA1 (R.sub.3 --O).sub.m is m identical or different radicals (R.sub.3 --O) and PA1 (R.sub.3 --O).sub.r is r identical or different radicals (R.sub.3 --O), and PA1 W is hydrogen or C.sub.1 -C.sub.6 alkyl which is unsubstituted or substituted by hydroxyl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.