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:
Feb. 13, 2024
Filed:
Oct. 10, 2022
Applicant:
Nitta Corporation, Osaka, JP;
Inventors:
Assignee:
NITTA CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06M 11/74 (2006.01); C08J 5/24 (2006.01); D06M 23/10 (2006.01); D06M 101/40 (2006.01);
U.S. Cl.
CPC ...
D06M 11/74 (2013.01); C08J 5/248 (2021.05); D06M 23/10 (2013.01); C08J 2361/12 (2013.01); C08J 2363/00 (2013.01); C08J 2377/06 (2013.01); D06M 2101/40 (2013.01);
Abstract
A method for producing a composite material, includes: immersing a carbon fiber bundle, including continuous carbon fibers, in a dispersion in which carbon nanotubes are dispersed in water, alcohol, or organic solvent; applying a tensile force to the carbon fibers, which are linearly arranged, using flat rollers; moving the carbon fibers linearly, under the tensile force by the flat rollers, at a constant depth inside the dispersion at a traveling speed of 1 to 20 m/min, such that the carbon nanotubes in the dispersion are adhered to respective surfaces of the carbon fibers; and applying a sizing agent to cover at least a part of the respective surfaces.