Molded polytetrafluoroethylene article and method of production thereof
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United States of America Patent
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Sep 11, 2001
Grant Date -
N/A
app pub date -
Sep 17, 1999
filing date -
Mar 19, 1997
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Abstract
A large molded article block free from distortion and residual stress can be obtained by means of a method of producing a polytetrafluoroethylene molded article by compression-molding a polytetrafluoroethylene powder to form a preform and baking the resulting preform with rotating. Furthermore, a film or sheet having less curling and wrinkle can be obtained by cutting the molded article block.
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