Foamed fluoropolymer
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United States of America Patent
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Nov 3, 1998
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app pub date -
Apr 17, 1997
filing date -
May 22, 1996
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Abstract
Fabricated articles of fluoropolymer are foamed by heating the articles to a deformable state, pressurizing the heated article with supercritical CO.sub.2, depressurizing the pressurized heated article while still in the foamable state, whereby said CO.sub.2 foams said article, and cooling the resultant foamed article.
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