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.

Date of Patent:
Oct. 01, 2024

Filed:

Aug. 28, 2020
Applicants:

Daicel Corporation, Osaka, JP;

Daikin Industries, Ltd., Osaka, JP;

Inventors:

Yoshitaka Ito, Tokyo, JP;

Masaya Omura, Tokyo, JP;

Junko Makino, Tokyo, JP;

Satoshi Hara, Osaka, JP;

Hiroaki Shintani, Tokyo, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H 1/4382 (2012.01); B01D 39/16 (2006.01); D04H 1/4318 (2012.01);
U.S. Cl.
CPC ...
D04H 1/4382 (2013.01); B01D 39/1623 (2013.01); D04H 1/4318 (2013.01); B01D 2239/0636 (2013.01); B01D 2239/0645 (2013.01); B01D 2239/1233 (2013.01); B01D 2239/1291 (2013.01); D10B 2505/04 (2013.01);
Abstract

A fiber article includes a plurality of first fibers and a plurality of second fibers each having an outer diameter smaller than that of each of the first fibers, the plurality of second fibers being supported in a dispersed state by the first fibers. A ratio D1/D2 of an outer diameter D1 of the first fiber to an outer diameter D2 of the second fiber is set to a value in a range of 15.0 or greater to 1666.7 or less. The outer diameter D1 is set to a value in a range of 5.0 μm or greater to 50.0 μm or less, and the outer diameter D2 is set to a value in a range of 30.0 nm or greater to 1.0 μm or less.


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