Fluoropolymer blends with inorganic layered compounds
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United States of America Patent
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Issued Date -
Apr 3, 2008
app pub date -
Sep 28, 2007
filing date -
Oct 2, 2006
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Abstract
Perfluoropolymer composites are provided which are obtained by dispersing layered-silicates having properties of swelling or cleaving in dispersion media in perfluoropolymers and having the ratio of the viscosity, V.sub.0.1, at 0.1 rad/sec by a parallel plate mode of a dynamic rheometer to the viscosity, V.sub.1, measured at 1 rad/sec is 1.5 or greater, viscosity being measured at 340.degree. C. A method for making the perfluoropolymer composites is provided, and molded articles therefrom. And additionally, perfluoropolymer composites, where layered-silicates having properties of swelling or cleaving in dispersion media are dispersed in perfluoropolymers, with the storage elasticity of 2 times or higher than that of fluoropolymers, at temperatures greater than the glass transition temperature of perfluoropolymers.
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