Amphiphilic siloxane-containing (meth)acrylamides and uses thereof
US9097840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2013 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Dec 13, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/606
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention provides an amphiphilic siloxane-containing (meth)acrylamide which comprises one sole (meth)acrylamido group, one sole tris(trimethylsiloxy)silyl group, and one polyethylene glycol segment which is either dangling polymer chain or a hydrophilic linker between the (meth)acrylamido group and the tris(trimethylsiloxy)silyl group. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from an amphiphilic siloxane-containing (meth)acrylamido group, one tris(trimethylsiloxy)silyl group of the invention. In addition, the invention provides a method for making silicone hydrogel contact lenses using a water-based lens-forming formulation comprising an amphiphilic siloxane-containing (meth)acrylamido group, one tris(trimethylsiloxy)silyl group of the invention and/or an actinically-crosslinkable silicone-containing prepolymer of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.