Patent ID: 6309546
Filing Date: 2001-10-30
Classification: B01D,B01J,B32B

Abstract:
A method of making a micro/ultra-filter element comprising:(a) masking a uniformly porous support resulting in the pores of said support to be substantially impenetrable;(b) coating a solution of uniformly sized metallic particles dispersed in a fluid medium comprising a binding agent on the surface of said masked uniformly porous support, wherein said particles do not substantially penetrate the pores of said support; and(c) heating said coated support to a temperature sufficiently high to (i) sinter said metallic particles resulting in metallurgical adhesion between said metallic particles and between said metallic particles and said surface of said porous support thereby producing a uniformly porous membrane on the surface of said support; and (ii) volatize or burn off said mask.