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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 12781393 B1

PDFFull Text
Date of Patent:
Nov. 03, 2026

Filed:

Aug. 25, 2022

Acrylic fiber for artificial hair, hair ornament product including the same, and production method therefor

Applicant:

Kaneka Corporation, Osaka, JP;

Inventors:

Megumi Yoshikawa, Takasago, JP;

Atsushi Honda, Takasago, JP;

Ayano Tanaka, Takasago, JP;

Takeshi Tanaka, Takasago, JP;

Assignee:

KANEKA CORPORATION, Osaka, JP;

Attorney:

Alleman Hall LLP

Primary Examiner:

Shawn Mckinnon

Int. Cl.
CPC ...
D01F 6/40 (2006.01); A41G 3/00 (2006.01); D01D 5/06 (2006.01); D01D 5/253 (2006.01); D01F 6/32 (2006.01); D06M 13/224 (2006.01); D06M 15/53 (2006.01); D06M 101/28 (2006.01);
U.S. Cl.
CPC ...
D01F 6/40 (2013.01); A41G 3/0083 (2013.01); D01D 5/06 (2013.01); D01D 5/253 (2013.01); D01F 6/32 (2013.01); D06M 13/224 (2013.01); D06M 15/53 (2013.01); D06M 2101/28 (2013.01); D10B 2321/10 (2013.01); D10B 2321/101 (2013.01); D10B 2503/08 (2013.01);
Abstract

The present invention relates to an acrylic fiber for artificial hair containing an acrylic copolymer. The fiber cross-section of the acrylic fiber has one or more shapes selected from the group consisting of a C-shape, a figure-6-shape, and a broad bean-shape with a hollow portion. Two ends of the C-shape, the figure-6-shape, or the broad bean-shape are apart from each other or are in contact with each other. A circumcircle of the fiber cross section has a diameter of 70 μm or more and 100 μm or less, an inscribed circle of the fiber cross section has a diameter of 15 μm or more and 50 μm or less, the thickness of the fiber cross section is 13 μm or more and 40 μm or less, and the canal width between the ends of the fiber cross section is 0 μm or more and 15 μm or less.

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Quick Actions:

Yoshikawa, Megumi. (2026). Acrylic fiber for artificial hair, hair ornament product including the same, and production method therefor (U.S. Patent No. 12781393). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12781393

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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