Composition for hydrogel, hydrogel and use thereof
US6858673B1 · kind B1 · utility
9Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 2000 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | May 9, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L29/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition for hydrogels which comprises (A1) a copolymer which comprises 25 to 97 mol % of unit (a) derived from a compound represented by formula (1) and 3 to 75 mol % of unit (b) derived from a monomer represented by formula (2) and is soluble in aqueous media and (B) a polymer which has hydrophilic groups such as hydroxyl or carboxyl groups and is soluble in aqueous media; and a hydrogel comprising the composition. (X represents a divalent organic residue; Y represents alkyleneoxy, etc.; Z, R1, R2, R3, R4, and L2 each represents hydrogen, etc.; and L1 represents —C6H4—, etc.)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.