Conductive polymer foams, method of manufacture, and uses thereof

    公开(公告)号:GB2458066A

    公开(公告)日:2009-09-09

    申请号:GB0911838

    申请日:2008-02-06

    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 magnetic, electrically conductive particles aligned into mutually isolated chains 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.

    14.
    发明专利
    未知

    公开(公告)号:DE10132141A1

    公开(公告)日:2002-01-10

    申请号:DE10132141

    申请日:2001-06-28

    Inventor: SIMPSON SCOTT S

    Abstract: An open-celled polyurethane foam formed from a composition comprising an active hydrogen-containing component, an organic polyisocyanate component having an average isocyanate functionality of 2.00 to 2.25, a surfactant component, and a catalyst. The foam has a thickness of about 6 to about 20 mils; a density of about 10 to about 50 pcf; an average cell diameter of about 25 to about 80 microns; and cell openings having an average diameter of about 1 to about 25 microns, wherein the ratio of average cell diameter to average cell opening diameter is about 3 to about 10; a water vapor transmission rate of greater than about 1000 grams per square meter per day, and which do not leak water or similar fluids. Such foams find particular utility as backings for bandages.

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