Medical article having a hydrophilic coating
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United States of America Patent
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Dec 11, 1984
Issued Date -
N/A
app pub date -
Apr 25, 1984
filing date -
Apr 22, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for coating a polymer surface with a hydrophilic coating with low friction in wet condition. The process comprises applying to the polymer surface a solution containing between 0.05 to 40% of a compound which comprises at least two unreacted isocyanate groups per molecule, evaporating the solvent, applying a solution containing between 0.5 to 50% of polyethylene oxide to the thus treated polymer surface and then evaporating the solvent of the last mentioned solution, and curing the coating at elevated temperature. The process is preferably carried out in the presence of a catalyst for the curing of isocyanate.
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