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Title:
AIR FILTER FILTRATION MATERIAL AND AIR FILTER PRODUCT
Document Type and Number:
WIPO Patent Application WO/2021/039981
Kind Code:
A1
Abstract:
Provided are an air filter filtration material and air filter product for which it is possible to extend the life thereof. The air filter filtration material comprises a filtration material layer containing first fibers having a mean fiber diameter of between 5 μm and 50 μm inclusive and second fibers interposed in gaps in-between the first fibers and having a mean fiber diameter of between 30 nm and 1 μm.

Inventors:
HARA SATOSHI
SHINTANI HIROAKI
ITO YOSHITAKA
Application Number:
PCT/JP2020/032655
Publication Date:
March 04, 2021
Filing Date:
August 28, 2020
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
B01D39/16; B01D46/02; D04H3/016; D04H5/08
Domestic Patent References:
WO2008090904A12008-07-31
WO2013084760A12013-06-13
WO2017022052A12017-02-09
WO2018221063A12018-12-06
Foreign References:
JP2004188355A2004-07-08
JPH0291262A1990-03-30
JP2012188774A2012-10-04
JP2019077962A2019-05-23
JP2017035684A2017-02-16
JP2002204909A2002-07-23
JPH06123051A1994-05-06
JP2017113653A2017-06-29
JP2019099946A2019-06-24
JP2018038347A2018-03-15
JP2017035684A2017-02-16
Other References:
See also references of EP 4023319A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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