Process for the separation of components in an organic liquid medium and a semi-permeable composite membrane therefor

摘要

The present invention relates to a process for the separation of components in an organic liquid medium with a semi-permeable composite membrane with a porous carrier substrate on which a polymer network obtained by interfacial polymerisation is applied. In the process of the invention the organic liquid medium is brought into contact with such semi-permeable composite membrane of which the polymer network is built from a reactive polyfunctional monomer or oligomer or prepolymer with as reactive groups -NHR1 R1 = H or alkyl with C1-C20), -OH or -SH and one reactive polyfunctional monomer or oligomer or prepolymer or polymer with as reactive groups -NCO. Furthermore the invention relates to a semi-permeable composite membrane with a porous carrier substrate for use in the process of the invention.