Hydrophilic copolymers, their preparation and their use in separation techniques
US4192784A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1978 |
| Grant date | Mar 11, 1980 |
| Priority date | — |
| Expiry date | Jan 27, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Water-insoluble, tridimensional cross-linked random copolymers, which contain in copolymerized form: PA0 (a) 25% to 98% by weight of N-[tris(hydroxymethyl)methyl]acrylamide or N-[tris(hydroxymethyl)methyl]methacrylamide or a mixture of these two compounds; PA0 (b) 2% to 50% by weight of one or more monomers having several polymerizable ethylenic double bonds and one or more hydroxy groups, and free from NH.sub.2 or COOH groups; and PA0 (c) 0% to 50% by weight of one or more monomers having a polymerizable ethylenic double bond and one or more amino or carboxy groups. These copolymers may be used, in the form of aqueous gels, as supports in techniques of separation such as gell permeation chromatography and in techniques of immobilization of natural substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.