The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2016
Filed:
Sep. 22, 2014
Anubhav Saxena, Bangalore, IN;
Shreedhar Bhat, Bangalore, IN;
Senthilkumar Umapathy, Bangalore, IN;
Kenrick M. Lewis, Flushing, NY (US);
Anubhav Saxena, Bangalore, IN;
Shreedhar Bhat, Bangalore, IN;
Senthilkumar Umapathy, Bangalore, IN;
Kenrick M. Lewis, Flushing, NY (US);
Momentive Performance Materials Inc., Waterford, NY (US);
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.