Absorbent polymer material and its preparation
US4587284A · kind A · utility
24Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1985 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Jun 14, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F289/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An enhanced water-absorbency hydrophilic polymer material, suitable for use in for example wound dressings, is prepared by a process in which a water-containing organic hydrogel comprising a gelable polysaccharide and/or protein or polypeptide interspersed with a polymer of a hydrophilic acrylic or methacrylic acid derivative is permeated with a base, the pH of said hydrogel being raised to at least 9 during treatment with said base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.