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:
Nov. 17, 2020
Filed:
Aug. 30, 2017
Applicant:
Kureha Corporation, Tokyo, JP;
Inventor:
Kotaku Saigusa, Tokyo, JP;
Assignee:
KUREHA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01F 6/12 (2006.01); C08F 14/22 (2006.01); D01D 5/12 (2006.01);
U.S. Cl.
CPC ...
D01F 6/12 (2013.01); C08F 14/22 (2013.01); D01D 5/12 (2013.01);
Abstract
Provided are fibers that have excellent mechanical properties such as strength and that do not result in the filament breakage during a manufacturing process. The fibers are vinylidene fluoride resin fibers including a plurality of vinylidene fluoride resin filaments, and having a degree of crystal orientation of 80% or more as determined on the basis of X-ray diffraction from the azimuth angle intensity distribution curve of 2θ=20.8±1°, and a crystal size of 12 nm or less.