Back to results
US 10,371,864 B2Granted
(Meth)acrylamide polymers for contact lens and intraocular lens
AssigneeBenz Research and Development Corporation
InventorsPatrick H. Benz, Adam Reboul
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeBenz Research and Development Corporation
InventorsPatrick H. Benz, Adam Reboul
Estimating the term…
An contact lens or intraocular lens (IOL) with very high water content polymers that have increased hydrolytic stability to withstand high temperatures such as autoclave temperatures, 123 C or even higher temperatures while in an aqueous environment comprising at least one polymer comprising one or more monomeric subunits comprising a polymerized acrylamide or methacrylamide group, at least one side group comprising an aliphatic carbon moiety substituted by at least one hydroxyl moiety, wherein the one or more monomeric subunits comprising a polymerized acrylamide or methacrylamide group, at least one side group comprising an aliphatic carbon moiety substituted by at least one hydroxyl moiety, comprise at least 50 wt. % of the polymer.
A contact lens or IOL comprising at least one polymer comprising
A contact lens blank, comprising a polymer formed from a mixture of monomers comprising a crosslinking monomer, a monomer comprising a polymerized acrylate or methacrylate group, and greater than about 50 wt. % of 2,3-dihydroxylpropyl (meth)acrylamide.
A composition comprising a polymer formed from a mixture of monomers constitutes greater than 50 wt. % dihydroxylpropyl (meth)acrylamide and a second monomer comprising a polymerized acrylate or methacrylate group, wherein the mixture of monomers comprises greater than zero, but less than 5 wt. % of a di-functional (meth)acrylamide monomer and the polymer does not comprise an ionic moiety.
A lens comprising at least one polymer comprising, a first monomeric subunit comprising polymerized 2,3-dihydroxypropyl (meth)acrylamide and a second monomeric subunit comprising 2-hydroxyethylmethacrylate and optionally a crosslinking monomeric subunit.
A polymer consisting of a first monomeric subunit comprising polymerized 2,3-dihydroxypropyl (meth)acrylamide, a second monomeric subunit comprising 2-hydroxyethylmethacrylate, and optionally one or more selected from the group consisting of a cross-linking monomeric subunit, a UV absorbing monomer, and a polymer initiator.
Dependencies are inferred from the claim text.