Title:
微孔性フィルムを製造するための押出方法および装置
Document Type and Number:
Japanese Patent JP2004508979
Kind Code:
A
Abstract:
A method and apparatus for producing microporous films. The method utilizes a casting surface and a condensing surface. The condensing surface is spaced from the casting surface to form a gap. The distance between the surfaces forming the gap is relatively small and is preferably less than 3 cm. A material, capable of forming microporous films through thermally induced phase separation processes, is cast onto the casting surface, preferably through conventional extrusion practices. The material contains at least one evaporative component that generally flashes off upon formation of the microporous material and condenses on the condensing surface.
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| JPH04363101 | EVAPORATING CONCENTRATOR |
Inventors:
Yapel, Robert A.
Hughes, Shannon K.
Kolb, William Bee.
Hughes, Shannon K.
Kolb, William Bee.
Application Number:
JP2002528480A
Publication Date:
March 25, 2004
Filing Date:
September 21, 2001
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
B01D5/00; B01D67/00; B01D71/26; B29C39/14; B29C48/08; B29C48/92; B29K105/04; B29L7/00; (IPC1-7): B29C47/88
Domestic Patent References:
| JPH11511546A | 1999-10-05 | |||
| JPH06285953A | 1994-10-11 | |||
| JPH1177802A | 1999-03-23 | |||
| JPH11511546A | 1999-10-05 | |||
| JPH06285953A | 1994-10-11 | |||
| JPH1177802A | 1999-03-23 |
Attorney, Agent or Firm:
Takashi Ishida
Jun Tsuruta
Fukumoto product
Masaya Nishiyama
Higuchi Souji
Jun Tsuruta
Fukumoto product
Masaya Nishiyama
Higuchi Souji