Porous diaphragm for separating particles, liquid drop or mixture of both from gas or liquid, has pores with diameter depending on distance of one of two diaphragm surfaces

摘要

The porous diaphragm has earlier inserted particles, which are removed. Pores are left behind after removing the particles (D) from the particles occupied positions, which are constantly connected by openings and cavities. The diameter of the pores in the diaphragm depends on the distance of one of the two diaphragm surfaces. An independent claim is also included for a method for producing porous diaphragm with asymmetric structure.