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:
Jul. 09, 2024
Filed:
Jan. 20, 2021
Kaneka Corporation, Osaka, JP;
Satoru Yoshimura, Hyogo, JP;
Masaru Anahara, Hyogo, JP;
Hiroki Shinomiya, Hyogo, JP;
Masanobu Tamura, Hyogo, JP;
Ryohei Noishiki, Hyogo, JP;
Aki Kano, Hyogo, JP;
Akihiro Okamoto, Hyogo, JP;
KANEKA CORPORATION, Osaka, JP;
Abstract
An acrylic fiber for artificial hair includes an acrylic copolymer obtained by copolymerizing acrylonitrile, vinyl chloride and/or vinylidene chloride, and a sulfonic acid group-containing vinyl monomer; and an organic solvent that can dissolve the acrylic copolymer, where the organic solvent is present in an amount of 0.1 to 3% by mass with respect to the total mass of the acrylic fiber for artificial hair. The acrylic fiber for artificial hair has an average surface roughness of 5900 μmor less in an area of 40 μm long and 80 μm wide of the side surface of the fiber.