Patent ID: 8431034
Filing Date: 2013-04-30
Classification: B01D

Abstract:
1. A method for producing a membrane comprising nanosizes pores, said method comprises the steps of: a) providing a support comprising a first and a second opposite side, b) depositing and adsorbing colloidal particles on said first side of said support, c) depositing a film of a membrane material on said colloidal particles and support, d) applying an adhesive material onto the colloidal particles covered by the membrane forming film, e) mechanically removing said covered colloidal particles from said support by means of peeling off the adhesive material together with the colloidal particles, wherein at least part of the membrane forming film covering the colloidal particles is removed from the support, while a perforated membrane forming film remains on the support, f) forming a window in said support throughout the thickness of the support with respect to said perforated membrane to reveal said membrane from the second side of the support.