Title:
ELECTRET FIBER SHEET, LAMINATE SHEET, AND FILTER
Document Type and Number:
WIPO Patent Application WO/2022/004480
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an electret fiber sheet that has high collection performance and that is suitably used in an air filter, etc. The present invention is an electret fiber sheet configured from polyolefin-based resin fibers comprising a polyolefin-based resin composition containing a high-crystalline polyolefin resin and a low-crystalline polyolefin resin, wherein the mass ratio of the low-crystalline polyolefin resin in the polyolefin-based resin composition is 0.5-10 mass% (inclusive) relative to the total mass of the high-crystalline polyolefin-based resin and the low-crystalline polyolefin resin, and a hindered-amine-based compound is included in the electret fiber sheet in an amount of 0.1-5.0 mass% (inclusive).
More Like This:
| WO/2006/014182 | FLUID FILTER |
| JP2009018306 | FILTER DEVICE FOR FUEL |
Inventors:
KAMESHIMA RIKA (JP)
INABA SACHIO (JP)
HAYASHI SHINGO (JP)
INABA SACHIO (JP)
HAYASHI SHINGO (JP)
Application Number:
PCT/JP2021/023537
Publication Date:
January 06, 2022
Filing Date:
June 22, 2021
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D39/16; B01D39/14; B03C3/28; D04H3/007; D04H3/16
Domestic Patent References:
| WO2019159654A1 | 2019-08-22 |
Foreign References:
| JP2014111235A | 2014-06-19 | |||
| JP2014176775A | 2014-09-25 | |||
| JP2019077962A | 2019-05-23 | |||
| JPH06128858A | 1994-05-10 |
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