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United States of America Patent
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app pub date -
Mar 12, 2013
filing date -
Sep 2, 2004
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Abstract
Disclosed is an organic/inorganic composite porous film, having: (a) inorganic particles; and (b) a binder polymer coating layer formed partially or totally on surfaces of the inorganic particles, wherein the inorganic particles are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a micropore structure. Further disclosed is a porous film having: (a) a porous substrate having pores; and (b) a coating layer formed on at least one region selected from the group consisting of a surface of the substrate and a part of the pores present in the substrate, wherein the coating layer comprises styrene-butadiene rubber. Also disclosed is an electrochemical device containing the organic/inorganic composite porous film, a method of manufacturing the film.
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