Porous composite product particularly with high specific...

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 9/26 (2006.01) B29C 47/00 (2006.01) C08J 5/18 (2006.01) C08K 3/00 (2006.01) C08L 23/02 (2006.01) C08L 27/16 (2006.01) C08L 29/04 (2006.01) C08L 71/02 (2006.01) C25B 11/03 (2006.01) H01G 9/00 (2006.01) H01M 4/00 (2006.01) H01M 4/86 (2006.01) H01M 4/96 (2006.01)

Patent

CA 2295841

The invention concerns a porous composite product in particular with high specific surface area, characterised in that it is formed of a polymeric material and at least 20 % of one or several fillers, and in that the product is obtainable by extrusion. The invention also concerns a method for preparing a porous composite product characterised in that it consists in: a) forming a mixture containing one or several insoluble polymers, one or several soluble or calcinable polymers, one or several fillers; b) extruding said mixture for forming an extruded precursor product; c) eliminating the soluble or calcinable polymer(s) of the extruded precursor product; recuperating the porous composite product. The invention also concerns all extruded object consisting of a porous composite product in particular with high specific area. Finally it concerns an electrode formed of a film of porous composite product.

La présente invention concerne un produit composite poreux notamment de haute surface spécifique, caractérisé en ce qu'il est formé d'un matériau polymérique et au moins 20 % d'une ou plusieurs charges, et en ce que ledit produit est susceptible d'être obtenu par extrusion. Elle concerne également un procédé de préparation d'un produit composite poreux caractérisé en ce que: a) on forme un mélange comprenant un ou plusieurs polymères insolubles, un ou plusieurs polymères solubles ou calcinables, une ou plusieurs charges; b) on extrude ledit mélange de façon à former un produit précurseur extrudé; c) on élimine le ou les polymères solubles ou calcinables du produit précurseur extrudé; d) on récupère le produit composite poreux. Elle concerne tout objet extrudé constitué d'un produit composite poreux notamment de haute surface spécifique. Elle concerne enfin une électrode formée d'un film de produit composite poreux.

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