Water-soluble urea derivative polymers with quaternary ammonium groups and their use
US5873911A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1997 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Aug 14, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/918
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Polymeric, water soluble, quaternary ammonium compounds (F) obtainable by quaternization of PA1 (a) at least one amino-group-containing urea compound that contains one or more groups of the formula EQU --NH--CO--NH--G--L-- (.alpha.) PA2 in which G signifies a bridging group PA2 and L signifies a tertiary, quaternizable amino group with PA1 (b) (b.sub.1) an epihalohydrin and optionally PA2 (b.sub.2) at least one further quaternizing agent to a quaternized product (q) and reaction of the quaternized product (q) with PA1 (c) a dialdehyde of formula (I) ##STR1## in which Z signifies methylene or the direct bond, or a urea derivative thereof, are suitable as fixing adjuvants in particular in continuous processes under nearly neutral to acidic conditions especially for the improvement of wet fastnesses of dyeings on hydrophilic fibrous material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.