Thermoplastic silicone-containing hydrogels
US5969076A · kind A · utility
171Cited by
4References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | May 15, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2210/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermoplastic silicone-containing composition are useful as a hydrogel contact lens material. The compositions are based on polymers including a siloxane segment and a highly hydrophilic segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.