	US 12,123,110 B2
	Fiber for artificial hair, head accessory product, and resin composition for artificial hair
Atsushi Horihata, Tokyo (JP); Takashi Muraoka, Tokyo (JP); and Atsushi Takei, Tokyo (JP)
Assigned to DENKA COMPANY LIMITED, Tokyo (JP)
Appl. No. 17/423,749
Filed by DENKA COMPANY LIMITED, Tokyo (JP)
PCT Filed Feb. 12, 2020, PCT No. PCT/JP2020/005371 § 371(c)(1), (2) Date Jul. 16, 2021, PCT Pub. No. WO2020/166614, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 2019-024819 (JP), filed on Feb. 14, 2019.
Prior Publication US 2022/0117341 A1, Apr. 21, 2022
Int. Cl. D01F 6/60 (2006.01); A41G 3/00 (2006.01); C08K 3/34 (2006.01); D01F 1/10 (2006.01); D01F 8/12 (2006.01); D01F 8/16 (2006.01)

CPC D01F 6/60 (2013.01) [C08K 3/34 (2013.01); D01F 1/10 (2013.01); D01F 8/12 (2013.01); D01F 8/16 (2013.01); A41G 3/0083 (2013.01); D10B 2331/02 (2013.01); D10B 2503/08 (2013.01)]

17 Claims

1. A fiber for artificial hair comprising:

a resin composition containing an aliphatic polyamide and inorganic particles,

wherein in a particle size distribution of the inorganic particles measured by a laser diffraction method, a ratio (D₅₀/D₁₀) of D₅₀, which is a particle size equivalent to a cumulative percentage of 50% based on volume, to D₁₀, which is a particle size equivalent to a cumulative percentage of 10% based on volume, is 1.8 or more and 3.0 or less, and

D₁₀of the inorganic particles is 1.5 μm or more and 3.0 μm or less.