Title:
ELECTRET MELT-BLOWN NONWOVEN FABRIC AND AIR FILTER FILTERING MEDIUM OBTAINED USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/167053
Kind Code:
A1
Abstract:
This electret melt-blown nonwoven fabric is formed from polyolefin-based resin fibers in order to realize a flexible high-elongation electret melt-blown nonwoven fabric without using a particular additive or performing a special postprocessing treatment, wherein the crystallization temperature at the first temperature increase in a cycle DSC is 80°C to 130°C, and the heat amount ∆Hm thereof is 3.0 J/g to 20.0 J/g.
Inventors:
TANAKA YOSHIKI (JP)
HAYASHI SHINGO (JP)
MIZOGAMI SHINOBU (JP)
YOSHITOMI TOMOHIRO (JP)
HAYASHI SHINGO (JP)
MIZOGAMI SHINOBU (JP)
YOSHITOMI TOMOHIRO (JP)
Application Number:
PCT/JP2023/006163
Publication Date:
September 07, 2023
Filing Date:
February 21, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D04H3/16; B01D39/14; B01D39/16; B03C3/28; D04H3/007
Domestic Patent References:
| WO2003060216A1 | 2003-07-24 |
Foreign References:
| JP2002161467A | 2002-06-04 | |||
| US20110168024A1 | 2011-07-14 | |||
| JP2022149681A | 2022-10-07 |
Download PDF: