Quaternary ammonium halides
US3987097A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1974 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Apr 26, 1994 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P5/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a process for increasing the affinity for anionic dyes of undyed water-insoluble high molecular weight organic compounds containing groups which can be alkylated, which process comprises reacting the high molecular weight compound with an ammonium salt of the formula: ##EQU1## in which X signifies chlorine or bromine. PA1 Y signifies a radical of formula --CH=CH-- or a phenylene radical which is unsubstituted or substituted by up to a total of 2 alkyl groups which may be methyl or ethyl, PA1 R.sub.1, r.sub.2 and R.sub.3, independently signify hydrocarbon radicals consisting of aromatic and/or saturated aliphatic units, or PA1 Two of R.sub.1, R.sub.2 and R.sub.3 jointly with the N atom form a heterocyclic ring, which is selected from heterocyclic rings containing one nitrogen atom, two nitrogen atoms and one nitrogen atom and one oxygen atom, and the other signifies a hydrocarbon radical as defined above or a further bond when the ring is unsaturated, PA1 The total number of carbon atoms in R.sub.1, R.sub.2 and R.sub.3 not being greater than 20, and the N atom not being bound directly to more than one aromatic radical. The invention also provides novel compoun…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.