Water-swellable polymer gel and process for preparing the same
US6486285B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/0084
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A water-swellable polymer gel prepared by reacting an ester of a carboxyl group-containing polysaccharide with a compound having at least two &agr;-amino groups, which is derived from a natural amino acid, and a foamed article thereof. The water-swellable polymer gel can be used in the fields such as industry, agriculture, food and medicine. The applications of the water-swellable gel in the medical field include wound dressings, adhesion-preventing materials, dialysis membranes, hemostatic materials, adhesive materials, sealants, contact lenses, materials for tissue regeneration, microcapsule materials and drug delivery systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.