Microporous layers, an article comprising a microporous layer, and a method of manufacture thereof
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United States of America Patent
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Apr 26, 2011
Grant Date -
Oct 16, 2008
app pub date -
Apr 10, 2008
filing date -
Apr 10, 2007
priority date (Note) -
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Abstract
A microporous layer comprising a microporous xerogel comprising pores that are substantially continuously interconnected from a first outermost surface of the microporous xerogel through to a second outermost surface of the microporous xerogel; and a crosslinked polymer binder comprising a polymer having a glass transition temperature of about 50° C. or higher, wherein the polymer binder is water soluble prior to crosslinking.
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