Silicone acrylamide copolymer
US9745460B2 · kind B2 · utility
4Cited by
14References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2015 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Mar 27, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L43/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a silicone acrylamide copolymer of high acrylamide monomer content which has transparency and low modulus, employing the following configuration. The copolymer is suitably used for various kinds of medical devices, particularly ophthalmic lenses such as a contact lens, an intraocular lens, an artificial cornea, and is especially suitable for a contact lens. A copolymer comprising (A) a multi-functional (meth)acrylamide monomer having at least one siloxane bond and at least two (meth)acrylamide groups within a molecule and (B) a mono-functional linear silicone (meth)acrylamide monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.