Organic polymers
US6444776B1 · kind B1 · utility
21Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1999 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Dec 21, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to novel crosslinkable amphiphilic block copolymers of formula wherein the variables are as defined in the claims, a process for their preparation and their use for the manufacture of mouldings. The block copolymers of the invention are especially useful for the manufacture of ophthalmic mouldings such as in particular contact lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.