Process for graft polymerization on surfaces of preformed substates to modify surface properties
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United States of America Patent
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Sep 8, 1998
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N/A
app pub date -
Jan 26, 1994
filing date -
Jun 9, 1992
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Expired
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Abstract
The invention relates to a process for modifying the surface characteristics of a preformed polymer substrate to impart altered properties thereto by graft polymerization on the substrate which includes: placing the polymer substrate in a plasma to form free radicals on the substrate; contacting the substrate having free radicals with oxygen to form hydroperoxy groups on the surface of the substrate; and graft polymerizing an ethylenically unsaturated monomer onto the surface of the polymer substrate.
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