Title:
ELECTRET MELT-BLOWN NON-WOVEN FABRIC, FILTER MATERIAL AND AIR FILTER OBTAINED USING SAME, AND METHOD FOR PRODUCING ELECTRET MELT-BLOWN NON-WOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2021/149606
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: an electret melt-blown non-woven fabric which has high trapping efficiency and low pressure loss; and a filter material and an air filter obtained using same. This electret melt-blown non-woven fabric is constituted from polyolefin-based resin fibers, wherein the non-woven fabric contains: 0.1-5.0 mass% of a hindered amine-based compound; and 0.01-1 mass% of one or more types of metal oxide particle which are constituted from oxides of metallic elements selected from among copper, cobalt, aluminum, nickel, zinc, palladium, molybdenum and tungsten, and which have an average particle diameter of 500 nm or less.
Inventors:
HAYASHI SHINGO (JP)
INABA SACHIO (JP)
HANE RYOICHI (JP)
INABA SACHIO (JP)
HANE RYOICHI (JP)
Application Number:
PCT/JP2021/001218
Publication Date:
July 29, 2021
Filing Date:
January 15, 2021
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D39/14; B01D39/16; B01D53/00; B03C3/28; D04H3/007; D04H3/14
Foreign References:
| JP2011132627A | 2011-07-07 | |||
| JP2011132628A | 2011-07-07 | |||
| JP2008075226A | 2008-04-03 | |||
| JPH05190389A | 1993-07-30 |
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