Method of making electret fibers
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United States of America Patent
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Aug 17, 2004
Issued Date -
N/A
app pub date -
Sep 25, 2001
filing date -
Oct 1, 1997
priority date (Note) -
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Abstract
A method of making electret fibers, which method comprises: extruding a polymeric material to create fibers; and imparting an electric charge to the fibers; wherein the resulting fibers have a level of extractable hydrocarbon material that is less than 3.0 weight percent, based on the weight of the fibers.
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