Title:
SUPPORT FOR SEMIPERMEABLE MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2000/009246
Kind Code:
A1
Abstract:
A nonwoven fabric having an average breaking length in each of the machine and the transverse directions at 5 % elongation of 4.0 km or longer and an air permeability of 0.2 to 10.0 cc/cm?2¿.sec; and a semipermeable-membrane support comprising the nonwoven fabric. The nonwoven fabric can be produced by using polyester-based fibers preferably having a birefringence ($g(D)n) of 0.170 or higher and a heat contraction stress at 200 °C of 0.10 to 0.60 g/d and heat-fusible binder fibers to form a web and hot-pressing it.
Inventors:
MIKI TERUHISA (JP)
SHINOKI TAKANORI (JP)
KOUZU NAOYA (JP)
MIYAGI AKIO (JP)
SHINOKI TAKANORI (JP)
KOUZU NAOYA (JP)
MIYAGI AKIO (JP)
Application Number:
PCT/JP1998/003594
Publication Date:
February 24, 2000
Filing Date:
August 12, 1998
Export Citation:
Assignee:
MIKI TOKUSHU PAPER MFG CO LTD (JP)
MIKI TERUHISA (JP)
SHINOKI TAKANORI (JP)
KOUZU NAOYA (JP)
MIYAGI AKIO (JP)
MIKI TERUHISA (JP)
SHINOKI TAKANORI (JP)
KOUZU NAOYA (JP)
MIYAGI AKIO (JP)
International Classes:
B01D39/16; B01D69/10; B32B5/26; D04H1/54; D21H27/08; D21H13/24; (IPC1-7): B01D69/10; B01D71/48; D21H13/24
Foreign References:
| JPH10174849A | 1998-06-30 | |||
| JPH02269034A | 1990-11-02 |
Other References:
See also references of EP 1044719A4
Attorney, Agent or Firm:
Aoyama, Tamotsu (Shiromi 1-chome Chuo-ku, Osaka-shi Osaka, JP)
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