Title:
FIRE-RETARDANT FILTER MEDIUM AND AIR FILTER UNIT
Document Type and Number:
WIPO Patent Application WO/1998/006476
Kind Code:
A1
Abstract:
A fire-retardant, gas-permeable base material is provided at least on one surface of a porous film of polytetrafluoroethylene (PTFE) to provide a filter medium, which is usable for ceiling materials and has an excellent flame resistance, and an air filter unit using the filter medium.
Inventors:
INOUE OSAMU (JP)
CHAEN SHINICHI (JP)
URAOKA NOBUKI (JP)
KUSUMI TOSHIO (JP)
ASANO JUN (JP)
HIRANO SEIICHI (JP)
HARA SATOSHI (JP)
CHAEN SHINICHI (JP)
URAOKA NOBUKI (JP)
KUSUMI TOSHIO (JP)
ASANO JUN (JP)
HIRANO SEIICHI (JP)
HARA SATOSHI (JP)
Application Number:
PCT/JP1997/002755
Publication Date:
February 19, 1998
Filing Date:
August 06, 1997
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
INOUE OSAMU (JP)
CHAEN SHINICHI (JP)
URAOKA NOBUKI (JP)
KUSUMI TOSHIO (JP)
ASANO JUN (JP)
HIRANO SEIICHI (JP)
HARA SATOSHI (JP)
INOUE OSAMU (JP)
CHAEN SHINICHI (JP)
URAOKA NOBUKI (JP)
KUSUMI TOSHIO (JP)
ASANO JUN (JP)
HIRANO SEIICHI (JP)
HARA SATOSHI (JP)
International Classes:
B01D39/08; B01D39/00; B01D39/16; B32B5/26; B32B27/00; B32B33/00; E04B9/02; (IPC1-7): B01D39/00
Foreign References:
| JPS51134475A | 1976-11-20 | |||
| JPH05504717A | 1993-07-22 | |||
| JPH05184844A | 1993-07-27 | |||
| JPH0368409A | 1991-03-25 |
Other References:
See also references of EP 0917901A4
Attorney, Agent or Firm:
Ikeuchi, Hiroyuki (Suite 401 3-25, Nishitenma 4-chome, Kita-k, Osaka-shi Osaka 530, JP)
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