Title:
BLENDED NONWAVEN FABRIC, FILTER FILTRATION MATERIAL, AND FILTER UNIT
Document Type and Number:
WIPO Patent Application WO/2013/125205
Kind Code:
A1
Abstract:
The present invention provides a filter filtration material which has low pressure loss. The present invention provides a filter filtration material which comprises a fluororesin porous membrane and an air-permeable support material that is laminated on at least one surface of the fluororesin porous membrane. The air-permeable support material is a blended nonwoven fabric that contains: (A) a sheath-core fiber that uses a polyester for the core and a polyolefin for the sheath; (B) a polyester fiber; and (C) a sheath-core fiber that uses a polyester for the core and a copolymerized polyester for the sheath.
Inventors:
UCHIYAMA SHIHO (JP)
HORIE YURI (JP)
ARAI MASAHIRO (JP)
MORI MASAAKI (JP)
ASANO TETSUO (JP)
MATSUNAGA NOBUHIRO (JP)
HORIE YURI (JP)
ARAI MASAHIRO (JP)
MORI MASAAKI (JP)
ASANO TETSUO (JP)
MATSUNAGA NOBUHIRO (JP)
Application Number:
PCT/JP2013/000888
Publication Date:
August 29, 2013
Filing Date:
February 18, 2013
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B01D69/10; B01D39/16; B01D69/12; B01D71/26; B01D71/36; B01D71/48; B32B27/12; B32B27/30; D01F8/06; D01F8/14; D04H1/541
Foreign References:
| JP2009136863A | 2009-06-25 | |||
| JP2008114177A | 2008-05-22 | |||
| JP2004181341A | 2004-07-02 | |||
| JP2001098452A | 2001-04-10 | |||
| JP2005253711A | 2005-09-22 |
Other References:
See also references of EP 2818223A4
Attorney, Agent or Firm:
KAMADA, Koichi et al. (JP)
Koichi Kamata (JP)
Koichi Kamata (JP)
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Claims: