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US 2012/0083573 A1Published application
Novel pdms-pvp block copolymers
AssigneeDsm IP Assets B.V.
InventorsJames PARAKKA, Keith R. McCrea, Robert S. Ward
Life of this patent
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Abstract
Methods for preparing functionalized polyvinylpyrrolidones with polymerizable functions. Also, amphipathic polydimethylsiloxane-PVP block copolymers, such as and (meth)acrylated and (meth)acrylamide-functionalized polyvinylpyrrolidone compounds, such as 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.
Claims9
An amphipathic diblock copolymer compound bearing polymerizable functionality having the following general structure:
Dependencies are inferred from the claim text.