Invention Grant
US09459378B2 Hydrophilic silicone monomers, process for preparation thereof and thin films containing the same 有权
亲水硅氧烷单体,其制备方法和含有它们的薄膜

Hydrophilic silicone monomers, process for preparation thereof and thin films containing the same
Abstract:
The present invention relates to a fast curing compositions comprising a (meth)acrylamide functionalized hydrophilic silicone monomers having a polyether moiety containing a branched linking group. In one embodiment, such compositions are useful for preparing water-absorbing silicone-hydrogel films for contact lens applications. In one embodiment, the (meth)acrylamide monomers disclosed here have a branched linking group on the polyether moiety which makes it possible to produce hydrophilic polyether modified silicone copolymers without the need to separate various by-products including, but not limited to, unreacted, isomerized polyether and associated high molecular weight by-products.
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