Patent ID: 9126147
Filing Date: 2015-09-08
Classification: B01D,B29C,B29K,B29L,C08J,H01M,Y02E,Y02P,Y10T

Abstract:
1. A membrane formed by a process which comprises: providing a foil containing 20 to 98% by weight of a polymer component (A) and 80 to 2% by weight of a particle component (B), which comprises phyllosilicates or tectosilicates distributed in the matrix of the polymer component (A) and having a mean particle diameter of 0.1 to 15 μm; stretching the foil monoaxially or biaxially to provide cavities in the foil; and filling the cavities using a process that includes replacing the cations of the phyllosilicates or the tectosilicates completely or partially by organic functionalizing hydrophobization agents comprising functionalized triphenyl methane dyes or their non-oxidised precursor.