Articles having low friction surfaces and production thereof
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United States of America Patent
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Mar 7, 1989
Grant Date -
N/A
app pub date -
Oct 17, 1986
filing date -
Oct 17, 1986
priority date (Note) -
Expired
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Abstract
The coefficient of friction of surfaces of articles, wherein the surface comprises a hydrophilic polyurethane polymer, is reduced by treating the surface with a mixture of concentrated sulfuric acid and a low molecular weight organic polyhydroxy compound, and removing excess treating mixture. Typical low friction articles produced thereby are boat hulls having drag resistant coatings, conduits having low friction linings, and cannula or body implants having slippery surfaces.
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