Metal membrane

摘要

A metal membrane filter, having linear, cylindrical filter pores of average diameter of a few tens of nm to several mu m randomly distributed over the filter surface at a density of 1 to 107> pores per cm2>, consists of electrodeposited metal (or metal alloy) with the linear, cylindrical filter pores. Independent claims are included for: (1) a metal membrane filter prepared by: (a) producing a plastics membrane filter with filter pores; (b) depositing an electrically conductive layer on the filter; (c) permeating the pores of the obtained metal-coated filter with a liquid (inert as regards electrodeposition) from the uncoated side to the coated side; (d) electrodepositing a metal membrane filter body on the filter; and (e) leaching out the plastics membrane filter from the metal membrane filter; and (2) a metal membrane filter both having a structure as above and prepared as above.