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:
Sep. 12, 2017
Filed:
Oct. 09, 2014
Denka Company Limited, Chuo-ku, Tokyo, JP;
Tomohiro Kimura, Kamakura, JP;
Yudai Ogawa, Kamakura, JP;
Yuhei Kasahara, Kamakura, JP;
Atsushi Horihata, Kamakura, JP;
Denka Company Limited, Chuo-ku, Tokyo, JP;
Abstract
Artificial hair fiber having shape memory and shape restoration function, artificial hair fiber having excellent flame resistance, and artificial hair fiber having low gloss appearance are provided. Provided is an artificial hair fiber including a resin composition including at least one polyamide, the artificial hair fiber satisfying at least one of constitutions (1) to (3): (1) the fiber has a modulus of elasticity of 2400 to 3000 N/mm; (2) the polyamide has a weight average molecular weight Mw of 6.5×10to 15×10and the fiber has a modulus of elasticity of 500 to 15000 N/mm; (3) the fiber has a modulus of elasticity of 500 to 15000 N/mmand the resin composition contains 5 to 20 parts by mass of fine particles with respect to 100 parts by mass of the polyamide.