Title:
STRUCTURED SURFACE ELECTROSTATIC FILTRATION MEDIA TRAY
Document Type and Number:
WIPO Patent Application WO/2003/013733
Kind Code:
A1
Abstract:
An electrostaticly charged filtration media is provided comprising a plurality of polymeric structured polymeric film layers having a structured surface defined on at least one face of each structured film layer forming at least in part flow channels, the plurality of structured film layers configured as a stack with the structured surfaces defining a plurality of ordered inlets open through a face of the stack that are in fluid communication with ordered fluid pathways each fluid pathway defined at least in part by at least one discrete flow channel such that fluid can flow substantially unimpeded from one of the inlets to an outlet opening at through another face of the stack wherein layer of fluid pathways is defined by two opposing charged film layers at least one of which is a structured film layer that has flow channels with an average height of from 0.1 mm to 5 mm and an average width of from 0.05 mm to 50 mm and an average aspect ratio of from 0.5 to 10.
Inventors:
ZHANG ZHIQUN
WU TIEN T
TANG YUAN-MING
SPIEWAK BRIAN E
WU TIEN T
TANG YUAN-MING
SPIEWAK BRIAN E
Application Number:
PCT/US2002/015525
Publication Date:
February 20, 2003
Filing Date:
May 13, 2002
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
B03C3/155; B03C3/28; (IPC1-7): B03C3/28; B03C3/155
Domestic Patent References:
| WO1999065593A1 | 1999-12-23 | |||
| WO2000044472A1 | 2000-08-03 | |||
| WO1998022222A1 | 1998-05-28 |
Attorney, Agent or Firm:
Bond, William J. (MN, US)
Hilleringmann, Jochen (Bahnhofsvorplatz 1 Cologne, DE)
Hilleringmann, Jochen (Bahnhofsvorplatz 1 Cologne, DE)
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