(Meth)acryloxy-containing trisiloxane, siloxane-containing polymers and biomedical devices therefrom
US9487612B2 · kind B2 · utility
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8References
20Claims
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Key dates
| Filing date | Feb 5, 2014 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Feb 5, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is provided a trisiloxane having a 3-(meth)acryloxy-substituted (hydroxylcyclohexyl)ethyl group, useful in making water absorbing silicone-hydrogel films for biomedical devices, such as contact lens, and a process for producing these monomers. This invention also provides for copolymers made from the trisiloxane having a 3-(meth)acryloxy-substituted (hydroxylcyclohexyl)ethyl group described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.