The hydrophilic coating lubricated for a substrate, method for providing a hydrophilic coating on the outer surface of a forming substrate and a medical device

摘要

"The hydrophilic coating.The present invention to a coating lubricated hidrfu00edlico to a substrate that includes a first coating layer having a cross-linked polyurethane or poloureia (a) complexed with poly ((a)Ethylene oxide) formed by reacting a mixture of an isocyanate, a polyol or polyamine, and a poly (ethylene oxide)And a second coating layer having a polyurethane or polyurea cross-linked (a) complexed with polyvinylpyrrolidone (a) formed by reacting a mixture of an isocyanate, a polyol or polyamine.And a polyvinylpyrrolidone. The first layer is substantially covered by the second layer and the second layer at least partially, if interpenetra with the first layer.The coating is provided by applying the first coating layer cured to provide a coating of polyurea pokiuretano or cross-linked () / poly (ethylene oxide)Application of the second layer and cured to provide a coating of polyurethane or polyurea cross-linked () / polyvinylpyrrolidone.