ELECTRET AND ELECTRET FILTER

Title:

ELECTRET AND ELECTRET FILTER

Document Type and Number:

WIPO Patent Application WO/2023/190089

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 having a hydroxylamine structure.

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Inventors:

NAKAJIMA MIZUKI (JP)
MASUMORI TADAO (JP)
KITAGAWA YOSHIYUKI (JP)

Application Number:

PCT/JP2023/011659

Publication Date:

October 05, 2023

Filing Date:

March 23, 2023

Export Citation:

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Assignee:

TOYO BOSEKI (JP)

International Classes:

B03C3/28; B01D39/16; D04H3/11; D04H3/16; H01G7/02

Domestic Patent References:

WO2018123418A1

2018-07-05

Foreign References:

JPH01287914A	1989-11-20
JP2022045847A	2022-03-22

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