Title:
AIR-FILTER MEDIA INCLUDING A RELOFTED SPUNBONDED WEB, AND METHODS OF MAKING AND USING
Document Type and Number:
WIPO Patent Application WO/2020/024245
Kind Code:
A1
Abstract:
A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0 %, to at least 3.0 %, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof.
Inventors:
CHENG LIANG (CN)
FU XIAOSHUAN (CN)
ZHANG ZHIQUN (US)
FU XIAOSHUAN (CN)
ZHANG ZHIQUN (US)
Application Number:
PCT/CN2018/098455
Publication Date:
February 06, 2020
Filing Date:
August 03, 2018
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
CHENG LIANG (CN)
CHENG LIANG (CN)
International Classes:
B01D39/04; B01D39/02
Domestic Patent References:
| WO2012077402A1 | 2012-06-14 |
Foreign References:
| CN102482819A | 2012-05-30 | |||
| CN101185818A | 2008-05-28 | |||
| CN103691200A | 2014-04-02 | |||
| CN1460534A | 2003-12-10 | |||
| JP3876004B2 | 2007-01-31 |
Other References:
See also references of EP 3829744A4
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
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