Title:
ELECTRET, ELECTRET FILTER, AND METHOD FOR PRODUCING ELECTRET
Document Type and Number:
WIPO Patent Application WO/2023/074758
Kind Code:
A1
Abstract:
An electret according to the present invention contains at least 90 mass% of a polyolefin resin, 0.1-5 mass% of a hindered phenol compound having an amide bond, and 0.1-5 mass% of a nitrogen-containing compound.
Inventors:
NAKAJIMA MIZUKI (JP)
MASUMORI TADAO (JP)
KITAGAWA YOSHIYUKI (JP)
MASUMORI TADAO (JP)
KITAGAWA YOSHIYUKI (JP)
Application Number:
PCT/JP2022/040002
Publication Date:
May 04, 2023
Filing Date:
October 26, 2022
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08L23/00; B01D39/16; C08K5/20; C08K5/3492; D04H3/16
Foreign References:
| JP2011522137A | 2011-07-28 | |||
| JPH01287914A | 1989-11-20 | |||
| JP2005029944A | 2005-02-03 | |||
| JP2009533505A | 2009-09-17 | |||
| JPH05190389A | 1993-07-30 | |||
| JP2018202369A | 2018-12-27 | |||
| JP2017094250A | 2017-06-01 | |||
| JP2018095974A | 2018-06-21 | |||
| JP6346640B2 | 2018-06-20 | |||
| CN111849133A | 2020-10-30 |
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