Process for the preparation of modified polytetrafluoroethylene and its use
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United States of America Patent
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Dec 31, 1996
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N/A
app pub date -
Jun 7, 1995
filing date -
Sep 25, 1993
priority date (Note) -
Expired
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Abstract
If the employment of polymerization auxiliaries in ammonium form is avoided in the preparation of a polytetrafluoroethylene having a content of 0.02 to 1% by weight of units of a perfluoro-(alkyl vinyl) ether by the suspension process, a polymer which does not tend to discoloration on heating is obtained.
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