Title:
AIR FILTER MEDIUM
Document Type and Number:
WIPO Patent Application WO/2018/123418
Kind Code:
A1
Abstract:
Provided is an air filter medium (1) comprising a substrate layer (2) and a fine fiber layer (3) having electrostatic chargeability, the fine fiber layer (3) including a polymer material to which a hindered phenol-based light stabilizer and a benzotriazol-based light stabilizer are added. The polymer material has a volume resistivity of 1016Ωcm or more and a loss tangent of 0.001 or less. The air filter medium (1) is characterized in that when the weight of the hindered phenol-based light stabilizer is X, and the weight of the benzotriazol-based light stabilizer is Y, a relationship of 0 < (Y/X) ≤ 1.25 is satisfied.
Inventors:
KATO MINATO
KOMORI DAISUKE
ONISHI HARUNOBU
TSUJI YOSHIHIRO
INAGAKI JUN
KOMORI DAISUKE
ONISHI HARUNOBU
TSUJI YOSHIHIRO
INAGAKI JUN
Application Number:
PCT/JP2017/042984
Publication Date:
July 05, 2018
Filing Date:
November 30, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B01D39/14; A61L9/16; B03C3/28
Foreign References:
| JP2011006810A | 2011-01-13 | |||
| JP2008221074A | 2008-09-25 | |||
| JPH057712A | 1993-01-19 | |||
| JPH06182128A | 1994-07-05 | |||
| JPH1024206A | 1998-01-27 | |||
| EP1068889A1 | 2001-01-17 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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