Hydrophilic lubricious coatings

Details Hydrophilic lubricious coatings Hydrophilic lubricious coatings

C - Chemistry, Metallurgy

09

D

117/152, 117/202

C09D 133/00 (2006.01) A61L 29/00 (2006.01) A61L 29/08 (2006.01) A61L 31/00 (2006.01) A61L 33/00 (2006.01) B05D 5/04 (2006.01) B05D 5/08 (2006.01) C08G 18/62 (2006.01) C08G 18/70 (2006.01) C08J 7/04 (2006.01)

Patent

CA 2007884

- 46 - IMPROVED HYDROPHILIC LUBRICIOUS COATINGS ABSTRACT OF THE DISCLOSURE A new method is provided to impart a hydrophilic lubricious coating onto articles such as medical devices. A device, for example a catheter, is first contacted with a polyisocyanate solution, to provide coupling, then contacted with a poly- carboxylic acid) solution to give a coating, and is then finally oven dried. These coatings have lubricity that only becomes manifest upon exposure to water or body fluids, and moreover, are also long lasting and have good abrasion resistance. This combination of properties is not available from other currently used or proposed coatings such as Teflon?.

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