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Patent Searching and Data


Title:
AIR FILTER MATERIAL, AIR FILTER PACK, AND AIR FILTER UNIT
Document Type and Number:
WIPO Patent Application WO/2018/062111
Kind Code:
A1
Abstract:
This air filter material (10) includes a first PTFE porous film (1) and a second PTFE porous film (2). The air filter material (10) is provided with a first main surface (11) and a second main surface (12). The first PTFE porous film (1) and the second PTFE porous film (2) are disposed such that an airflow passing therethrough from the first main surface (11) to the second main surface (12) passes through the first PTFE porous film (1) and the second PTFE porous film (2) in that order. The water contact angle of the first PTFE porous film (1) is within the range of 154-165 degrees.

Inventors:
NIKI TAKASHI (JP)
MORI MASAAKI (JP)
WADA SHIHO (JP)
DAIMON ATSUSHI (JP)
YANAGI TOSHIKI (JP)
Application Number:
PCT/JP2017/034581
Publication Date:
April 05, 2018
Filing Date:
September 25, 2017
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
B01D39/16; B01D46/52; B01D63/14; B01D71/36; B32B3/28; B32B27/30
Foreign References:
JP2001170424A2001-06-26
JPH1180397A1999-03-26
JP2004305812A2004-11-04
JP2000300921A2000-10-31
JP2001170424A2001-06-26
JP2003190749A2003-07-08
Other References:
ZHANG, J., LI ET AL.: "Superhydrophobic PTFE surfaces by extension", MACROMOLECULAR RAPID COMMUNICATIONS, vol. 25, no. 11, 7 July 2004 (2004-07-07), pages 1105 - 1108, XP055584401, ISSN: 1022-1336
See also references of EP 3520873A4
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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