Double network hydrogel with anionic polymer and uses thereof
US11957813B2 · kind B2 · utility
1Cited by
2References
20Claims
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Assignee
Inventor
Key dates
| Filing date | Jan 28, 2021 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Apr 12, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2433/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A double network hydrogel consists of a first network and a second network, where the first network is, or includes, a first polymer that is formed, at least in part, of —CH2—CH(OH)— units, and the second network is, or includes, a second polymer that is formed, at least in part, of carboxyl (COOH)-containing units or salts thereof, sulfonyl (SO3H)-containing units or salts thereof, and at least one of hydroxyl (OH)-containing units or amino (NH2)-containing units, where the hydrogel may be used as a cartilage replacement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.