Patent ID: 6620320
Filing Date: 2003-09-16
Classification: B01D,B01J

Abstract:
A permeable composite material comprising at least one porous and permeable support having pores in the interior thereof, which is provided on at least one side of the support and in the pores with at least one inorganic component, which comprises at least one compound of a metal, a semi-metal or a mixed metal with at least one element of Group 3 to Group 7,whereinthe composite material exhibits ion-conducting properties and additionally contains at least one inorganic and/or organic material which exhibits ion conducting-properties, wherein the material either (A) contains ionic groups selected from the group consisting of sulfonic acid, phosphoric acid, carboxylic acid, tetraorganylammonium, tetraorganylphosphonium groups and mixtures thereof, or (B) is at least one polymer selected from the group consisting of a sulfonated polytetrafluoroethylene, sulfonated polyvinylidene fluoride, aminolyzed polytetrafluorethylene, aminolyzed polyvinylidene fluoride, aminolyzed polysulfone, sulfonated polyether imide, and aminolyzed polyether imide, or (C) is at least one inorganic compound selected from the group consisting of phosphates, phosphonates, sulfates, and sulfonates of Zr, and silicates of K, Na and Li, wherein the at least one inorganic component is in the form of particles, and the ionic groups are organic compounds bound chemically and/or physically to the particles.