3.
    发明专利
    未知

    公开(公告)号:BR0103318A

    公开(公告)日:2002-04-23

    申请号:BR0103318

    申请日:2001-08-10

    Abstract: Metal membrane contains a metal membrane formed on a supporting surface of a porous membrane carrier. The pores of the membrane carrier are closed in the region of the supporting surface using an auxiliary material before applying the metal membrane and opened after applying the metal membrane by removing the auxiliary material. An independent claim is also included for a process for the production of the metal membrane comprising filling the pores of the membrane carrier using the auxiliary material, polishing and purifying the supporting surface, applying the membrane on the supporting surface, and removing the auxiliary material from the pores of the carrier.

    6.
    发明专利
    未知

    公开(公告)号:BR0103275A

    公开(公告)日:2002-05-28

    申请号:BR0103275

    申请日:2001-08-09

    Abstract: Production of a metal composite membrane consisting of a thin metal membrane having a required thickness and a metallic membrane support having a porous structure comprises placing a precursor of the metal membrane on a porous precursor of the membrane support; forming a metal composite between both precursors; adjusting the thickness of the metal membrane by deforming the metal composite; and producing the porous structure of the membrane support. Preferred Features: The metal composite is processed by cladding by rolling, explosive cladding or diffusion welding. The metal composite is deformed by rolling, pressing, hot extruding and/or deep drawing, preferably drawing into tubes. The membrane support has a thickness of less than 20-100, preferably 20-50 microns. The metal membrane has a thickness of 1-20, preferably 1-5 microns.

Patent Agency Ranking