Fluoropolymer coating and casting compositions and films derived therefrom
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United States of America Patent
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Mar 16, 1993
Issued Date -
N/A
app pub date -
Nov 26, 1985
filing date -
Apr 13, 1984
priority date (Note) -
Expired
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Abstract
A fluoroplastic resin dispersion is modified by the addition of a fluoroelastomer latex to yield a fluid coating or casting composition for forming films. The fluoroplastic resin dispersion, preferably an aqueous dispersion of a perfluoroplastic, such as polytetrafluoroethylene (PTFE), is modified by blending with a fluoroelastomer composition, preferably a latex, such that the fluoroplastic comprises up to about 95%, preferably up to about 90%, by weight of the invention composition. The fluoroelastomer component comprises at least about 5% by weight of the blend. The fluid composition and film according to the invention may preferably comprise from about 10-95% by weight fluoroplastic and from about 5-90% fluoroelastomer.
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