(19)
(11) EP 0 593 515 A1

(12)

(43) Date of publication:
27.04.1994 Bulletin 1994/17

(21) Application number: 92912441.0

(22) Date of filing: 18.05.1992
(51) International Patent Classification (IPC): 
B01D 39/ 14( . )
B01J 20/ 28( . )
B01D 39/ 00( . )
G01N 30/ 93( . )
(86) International application number:
PCT/US1992/004121
(87) International publication number:
WO 1993/000163 (07.01.1993 Gazette 1993/02)
(84) Designated Contracting States:
BE CH DE ES FR GB IT LI NL

(30) Priority: 28.06.1991 US 19910722665

(71) Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
St. Paul, Minnesota 55133-3427 (US)

(72) Inventors:
  • HAGEN, Donald, F.
    Saint Paul, MN 55133-3427 (US)
  • BALSIMO, William, V.
    Saint Paul, MN 55133-3427 (US)
  • WRIGHT, Robin, E.
    Saint Paul, MN 55133-3427 (US)
  • MARKELL, Craig, G.
    Saint Paul, MN 55133-3427 (US)

(74) Representative: Baillie, Iain Cameron 
c/o Ladas & Parry Altheimer Eck 2
D-80331 München
D-80331 München (DE)

   


(54) ARTICLE FOR SEPARATIONS AND PURIFICATIONS AND METHOD OF CONTROLLING POROSITY THEREIN