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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.:

US 11879205 B1

PDFFull Text
Date of Patent:
Jan. 23, 2024

Filed:

Jun. 02, 2021

Treatment agent for carbon fiber precursor, aqueous solution of treatment agent for carbon fiber precursor, carbon fiber precursor, and method for producing carbon fibers

Applicant:

Takemoto Yushi Kabushiki Kaisha, Gamagori, JP;

Inventors:

Kohei Oda, Gamagori, JP;

Hiroki Honda, Gamagori, JP;

Assignee:

TAKEMOTO YUSHI KABUSHIKI KAISHA, Gamagori, JP;

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Daniel C McCracken

Int. Cl.
CPC ...
D06M 13/252 (2006.01); D01F 9/21 (2006.01); D06M 15/643 (2006.01); D06M 101/26 (2006.01);
U.S. Cl.
CPC ...
D06M 13/252 (2013.01); D01F 9/21 (2013.01); D06M 15/6436 (2013.01); D06M 2101/26 (2013.01); D06M 2200/40 (2013.01);
Abstract

The present invention addresses the problem of suitably improving a treatment agent for a carbon fiber precursor in terms of the heat resistance and the effect of suppressing fusion between fibers during the step of flame-resisting treatment. This treatment agent for a carbon fiber precursor is characterized by containing a lubricant, the lubricant comprising a specific sulfur-containing diester compound and a specific sulfur-containing monoester compound.

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Oda, Kohei. (2024). Treatment agent for carbon fiber precursor, aqueous solution of treatment agent for carbon fiber precursor, carbon fiber precursor, and method for producing carbon fibers (U.S. Patent No. 11879205). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11879205

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