Functionalized isobutylene polymer-inorganic clay nanocomposites and organic-aqueous emulsion process
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United States of America Patent
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Apr 7, 2009
Grant Date -
Jan 18, 2007
app pub date -
Jul 18, 2005
filing date -
Jul 18, 2005
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Abstract
isoolefin derived units, para-methylstyrene derived units, and para(halomethylstyrene) derived units, or can be a butyl-type rubber. The nanocomposite can be formed by contacting an aqueous slurry of inorganic clay with a polymer cement while agitating vigorously to form emulsions or micro-emulsions to intimately mix the inorganic clay and the elastomer. The nanocomposite so formed has improved air barrier properties and is suitable for use as an innerliner or innertube.
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