Hydrophilic coating that reduces particle development on ester-linked poly(ester-block-amide)
AssigneeBoston Scientific Scimed, Inc.
InventorsIrina Nazarova, Jeffrey S. Lindquist, Daniel J. Horn
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Abstract
Articles such as catheters or balloons that have an ester-linked poly(ester-block-amide) substrate have a lubricious hydrogel coating which suppresses particle development under accelerated aging conditions. A polymerizable coating composition is applied to the substrate without application of an intervening primer layer and cured. The coating composition comprises an uncrosslinked polyvinylpyrrolidone polymer that is free of attached photoinitiator groups and at least one polyfunctional ethylenically unsaturated monomer.
Claims11
A method of suppressing development of surface particulates on an ester-linked poly(ether-block-amide) polymer substrate, the method comprising applying to the substrate a composition comprising at least one polyfunctional ethylenically unsaturated monomer and a polyvinylpyrrolidone polymer that has no photoinitiator groups thereon and then polymerizing the at least one polyfunctional ethylenically unsaturated monomer to provide a cured coating on the substrate.
Dependencies are inferred from the claim text.