Cationic hydrophilic siloxanyl monomers
US7622512B2 · kind B2 · utility
24Cited by
86References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2006 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | May 3, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F226/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to polymeric compositions useful in the manufacture of biocompatible medical devices. More particularly, the present invention relates to certain cationic monomers capable of polymerization to form polymeric compositions having desirable physical characteristics useful in the manufacture of ophthalmic devices. Such properties include the ability to extract the polymerized medical devices with water. This avoids the use of organic solvents as is typical in the art. The polymeric compositions comprise polymerized cationic hydrophilic siloxanyl monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.