Process for the dyeing of polyacrylonitrile fibrous material
US4090845A · kind A · utility
6Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1976 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Dec 15, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/929
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Water-soluble quaternary ammonium compounds of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each alkyl groups of C.sub.1-15 chain length wherein the sum of the carbon atoms in said groups is 9 to 18; R.sub.3 represents a C.sub.1-5 alkyl or hydroxyalkyl group; R.sub.4 represents a C.sub.1-5 alkyl, hydroxyalkyl or benzyl group; R.sub.5 represents a benzyl group; and X represents a salt-forming anion, are effective retardant-levelling agents in the dyeing of anionic polyacrylonitrile fibers with basic (i.e. cationic) dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.