Un-sintered polytetrafluoroethylene processed article
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United States of America Patent
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Feb 18, 2003
Grant Date -
Aug 9, 2001
app pub date -
Jan 26, 2001
filing date -
Jan 28, 2000
priority date (Note) -
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Abstract
To provide an un-sintered polytetrafluoroethylene processed article which has an un-sintered polytetrafluoroethylene layer formed by coating and/or impregnating with an aqueous dispersion of PTFE and is characterized in that a content of alkyl phenols detected from the un-sintered PTFE layer is not more than 0.1 ppm. The un-sintered PTFE-processed article scarcely contains alkyl phenols which are suspected as chemical substances having endocrine disrupting activity.
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