A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 29/08 (2006.01)
Patent
CA 2634339
A hydrophilie coating is applied to the surface of a substrate by a method which comprises the steps of (a) applying a first coating comprising a polyvinyl chloride copolymer; and (b) applying a second coating comprising a mixture of a poly(N- vinyl lactam), a polyvinyl chloride copolymer and optionally a zwitterionic compound. Preferably the polyvinyl chloride copolymer is a vinyl chloride-vinyl acetate copolymer. A substrate resulting from the method and a kit for carrying out the method are also provided.
L~invention concerne un procédé d~application d~un revêtement hydrophile sur la surface d~un substrat, le procédé comprenant les étapes suivantes : (a) appliquer un premier revêtement comprenant un copolymère de chlorure de polyvinyle ; et (b) appliquer un second revêtement comprenant un mélange de poly(N-vinyle lactame), d~un copolymère de chlorure de polyvinyle et éventuellement d~un composé zwitterionique. Le copolymère de chlorure de polyvinyle est de préférence un copolymère chlorure de vinyle-acétate de vinyle. L~invention concerne également un substrat obtenu par le procédé et un kit destiné à la mise en oeuvre du procédé.
Al-Lamee Kadem
Lott Martyn
Bayer Materialscience Ag
Hicks & Associates
Polybiomed Limited
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