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Composition for wet lubrication surface coating excellent in durability, coating liquid, surface coating, surface coating method, and medical device having the surface coating
Composition for wet lubrication surface coating excellent in durability, coating liquid, surface coating, surface coating method, and medical device having the surface coating
Disclosed is a surface coating which is composed of a composition containing (a) 1-35% by weight of at least one of an aromatic diisocyanate, an aliphatic diisocyanate and an alicyclic diisocyanate, (b) 1-35% by weight of a tri- or more-functional polyol and (c) 30-98% by weight of a polyalkylene glycol and/or a monomethoxypolyalkylene glycol, or a composition containing a part of the components polymerized in advance as a prepolymer. Also disclosed is a coating liquid containing such a composition, a surface coating obtained by applying the coating liquid to a surface, and a medical device having the surface coating. The surface coating exhibits sufficient lubricity in wet state, while having excellent durability and high biological safety.
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