Surface treatment
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United States of America Patent
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Feb 29, 2000
Issued Date -
N/A
app pub date -
May 29, 1998
filing date -
May 30, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A method of treating a substrate comprises contacting a surface of said substrate, with a pressurized fluid comprising carbon dioxide and a surface treatment component, the surface treatment component being entrained in the pressurized fluid and contacting the surface so that the surface treatment component lowers the surface tension of the surface of the substrate and treats the substrate. The contacting step is preferably carried out by immersion, the fluid is preferably a liquid or supercritical fluid, the substrate is preferably a metal or fabric substrate, and the surface treatment component is preferably a fluoroacrylate polymer.
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