Flexible lubricious organic coatings
AssigneeC. R. Bard, Inc.
InventorRichard K. Elton
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Abstract
A flexible, lubricious organic polymeric coating is formed by applying a mixture of an isocyanate, a polyol, poly(ethylene oxide), and carrier liquid to a surface to be coated. The carrier liquid is removed and the mixture reacted to form a polyurethane coating with associated poly(ethylene oxide) giving a highly lubricious, abrasion resistant, flexible coating particularly suitable for use as a protective lubricious coating on devices introduced into the body.
Claims5
An abrasion resistant, hydrophilic lubricious, organic coating comprising a cross-linked polyurethane and a polyethylene oxide formed from the reaction on a (surface) substrate to be coated, of a mixture containing, an isocyanate, a polyol and a polyethylene oxide in a carrier liquid to form a (polyurethane) coating having good adherence to the substrate and good anti-friction properties.
Dependencies are inferred from the claim text.