05702754 is referenced by 371 patents and cites 84 patents.

A substrate such as a catheter or a guide wire is provided with a lubricous, hydrophilic abrasion-resistant coating by:

a) coating said substrate with a first aqueous coating composition comprising an aqueous dispersion or emulsion of a polymer having organic acid functional groups and a polyfunctional crosslinking agent having functional groups capable of reacting with organic acid groups, and drying the coating to obtain a substantially water-insoluble coating layer having excess polyfunctional including functional groups being reactive with organic acid groups remaining, and

b) contacting the dried coating layer obtained in a) with a second aqueous coating composition comprising an aqueous solution or dispersion of a hydrophilic polymer having organic acid functional groups, and drying the combined coating, the hydrophilic polymer thereby becoming bonded to the polymer of the first coating composition through the excess crosslinking agent.

The drying can be carried out at ambient (room) temperature.

Title
Method of providing a substrate with a hydrophilic coating and substrates, particularly medical devices, provided with such coatings
Application Number
8/392141
Publication Number
5702754
Application Date
February 22, 1995
Publication Date
December 30, 1997
Inventor
Sheng Ping Zhong
Farum
DK
Agent
Hoffmann & Baron
Assignee
Meadox Medicals
NJ, US
IPC
B05D 7/02
B05D 5/08
B05D 3/02
B05D 1/36
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