Patent ID: 8337974
Filing Date: 2012-12-25
Classification: B01D,C04B,G05G,H01M,Y02E,Y10T

Abstract:
1. A membrane, comprising: a sheetlike flexible substrate having a multiplicity of openings and having a porous coating on and in said substrate, said coating comprising an adhesion promoter and one or more inorganic components, wherein the material of said substrate is a nonwoven polymeric fiber selected from the group consisting of a poly-acrylonitrile fiber, a polyamide fiber, a polyimide fiber, a poly-acrylate fiber, a polytetrafluoroethylene fiber, a polyester fiber, a polyolefin fiber and mixtures thereof, said material having a porosity of more than 50%, said substrate being from 10 to 200 μm in thickness and said coating being a porous ceramic coating, wherein the adhesion promoter is at least one of a glycidyloxy-functionalized silane and a methacryloyloxy-functionalized silane.