Title:
METHOD OF FORMING MICROPOROUS MEMBRANES
Document Type and Number:
WIPO Patent Application WO2005011971
Kind Code:
A3
Abstract:
A method of forming a microporous fluoropolymer membrane comprising the steps of: irradiating a sheet of fluoropolymer at a dosage level below the rupture energy of the carbon-to-fluorine (C-F) bonds of the fluoropolymer, but sufficient to rupture carbon-to-carbon (C-C) bonds; and exposing the sheet of fluoropolymer to an etching for a period of time sufficient to etch away disrupted atoms and molecules, wherein continuous microphages are formed through the sheet.
Inventors:
KORENEV SERGEY ALEXANDROVICH
KORENEV IVAN SERGEEVICH
KORENEV IVAN SERGEEVICH
Application Number:
PCT/US2004/023173
Publication Date:
June 16, 2005
Filing Date:
July 16, 2004
Export Citation:
Assignee:
STERIS INC (US)
International Classes:
B01D67/00; B01D69/02; B01D71/34; C08J7/12; (IPC1-7): C23F1/00
Foreign References:
| US5066565A | 1991-11-19 | |||
| US4956219A | 1990-09-11 |
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