Conductive polymer foams, method of manufacture, and uses thereof
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United States of America Patent
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Jan 25, 2011
Grant Date -
Jan 13, 2011
app pub date -
Feb 6, 2008
filing date -
Feb 6, 2007
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Abstract
Articles are disclosed, comprising a polymer foam layer having a first surface and an opposite second surface; a plurality of cells between the first surface and the opposite second surface of the polymer foam layer, wherein the thickness of the polymer foam layer between the first surface and the opposite second surface is 1.0 to 1.5 times the average height of the plurality of cells; and a plurality of electrically conductive particles aligned into a plurality of columns that essentially continuously span the foam between the first surface and the opposite second surface of the polymer foam layer. The foams are useful as gaskets for electromagnetic shielding, grounding pads, battery contact conductive spring elements, and the like.
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