Porous hydrogels
US6653420B2 · kind B2 · utility
29Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Feb 1, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2300/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a process for the manufacture of a porous polymer, wherein a composition comprising a polymerizable component, a porogen having an inverse temperature dependent solubility and a solvent are polymerized at a temperature around the cloud point temperature of the composition. The porous polymers obtainable according to the process of the invention are useful, for example, as materials for the manufacture of biomedical devices and prostheses, including ophthalmic devices such as contact lenses or artificial corneas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.