| 20100099829 | NOVEL PDMS-PVP BLOCK COPOLYMERS - Methods for preparation of functionalized polyvinylpyrrolidone with polymeπzablβ functions and amphipathic polydimethylsiloxane-PVP block copolymers A (meth)acrylated polyvinylpyrrolidone compound and a (meth)acrylamide-functionalized polyvinylpyrrolidone structures are disclosed The block copolymers are useful as biomaterial components in biomedical devices They provide improved wettability, lubricity, and material compatibility to the biomedical device, e g, ophthalmic lenses | 04-22-2010 |