	US 12,473,668 B2
	Flame-retardant modacrylic fiber, method for producing the same, and flame-retardant fiber composite and flame-retardant work clothing including the same
Wataru Mio, Hyogo (JP); Akira Ozaki, Hyogo (JP); Shinya Nakamura, Hyogo (JP); and Keita Uchibori, Hyogo (JP)
Assigned to KANEKA CORPORATION, Osaka (JP)
Filed by KANEKA CORPORATION, Osaka (JP)
Filed on Jul. 18, 2024, as Appl. No. 18/776,649.
Application 18/776,649 is a continuation of application No. PCT/JP2023/005409, filed on Feb. 16, 2023.
Claims priority of application No. 2022-036295 (JP), filed on Mar. 9, 2022.
Prior Publication US 2024/0384446 A1, Nov. 21, 2024
Int. Cl. D02G 3/44 (2006.01); D01F 1/07 (2006.01); D01F 6/40 (2006.01); D02G 3/04 (2006.01); D04B 1/16 (2006.01); D04B 1/24 (2006.01); D04B 21/16 (2006.01); D04B 21/20 (2006.01)

CPC D02G 3/443 (2013.01) [D01F 1/07 (2013.01); D01F 6/40 (2013.01); D02G 3/045 (2013.01); D04B 1/16 (2013.01); D04B 1/24 (2013.01); D04B 21/16 (2013.01); D04B 21/207 (2013.01); D10B 2201/22 (2013.01); D10B 2321/101 (2013.01); D10B 2401/04 (2013.01); D10B 2501/04 (2013.01)]

15 Claims

1. A flame-retardant fiber composite comprising:

a flame-retardant modacrylic fiber in an amount of 40 to 80 mass %, and

a lyocell in an amount of 20 to 60 mass %,

wherein the flame-retardant modacrylic fiber comprises a modacrylic copolymer in an amount of 100 parts by mass; and a zinc stannate compound in an amount of 1 to 18 parts by mass, and

wherein the zinc stannate compound has an average particle size D50 of 0.5 μm or more.