The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2020
Filed:
Aug. 23, 2017
Applicant:
Asahi Kasei Fibers Corporation, Osaka-shi, Osaka, JP;
Inventors:
Assignee:
ASAHI KASEI FIBERS CORPORATION, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/26 (2006.01); B01D 69/10 (2006.01); D04H 3/018 (2012.01); D04H 3/14 (2012.01); D04H 3/009 (2012.01); D04H 3/011 (2012.01); B01D 61/02 (2006.01);
U.S. Cl.
CPC ...
D04H 3/009 (2013.01); B32B 5/26 (2013.01); D04H 3/011 (2013.01); B01D 61/025 (2013.01); B01D 69/10 (2013.01); B32B 2250/03 (2013.01); B32B 2250/20 (2013.01); B32B 2262/0261 (2013.01); B32B 2262/0284 (2013.01); B32B 2307/54 (2013.01); B32B 2307/5825 (2013.01); B32B 2307/718 (2013.01); B32B 2307/724 (2013.01); Y10T 428/24802 (2015.01);
Abstract
An object of the present invention is to provide a nonwoven fabric having high tensile strength and high tear strength. The laminate nonwoven fabric of the present invention is a laminated nonwoven fabric obtained by thermally press-contacting a thermoplastic continuous fiber layer as an outer layer with both surfaces of an interlayer, wherein the ratio (F1/F2) between the average oblateness (F1) of the thermoplastic continuous fiber present on the surface side and the average oblateness (F2) of the thermoplastic continuous fiber present on the inner side is 1.20 or more.