	US 12,435,464 B2
	Treatment agent, flame resistant fiber nonwoven fabric, carbon fiber nonwoven fabric, and methods for producing same
Jun Ito, Gamagori (JP); and Keiichiro Oshima, Gamagori (JP)
Assigned to TAKEMOTO YUSHI KABUSHIKI KAISHA, Aichi-ken (JP)
Appl. No. 17/631,286
Filed by TAKEMOTO YUSHI KABUSHIKI KAISHA, Aichi-ken (JP)
PCT Filed Jan. 20, 2021, PCT No. PCT/JP2021/001747 § 371(c)(1), (2) Date Jan. 28, 2022, PCT Pub. No. WO2021/157347, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 2020-018883 (JP), filed on Feb. 6, 2020.
Prior Publication US 2022/0364302 A1, Nov. 17, 2022
Int. Cl. D06M 15/53 (2006.01); D04H 1/4242 (2012.01); D04H 1/43 (2012.01); D04H 1/74 (2006.01); D04H 3/002 (2012.01); D04H 3/007 (2012.01); D04H 3/02 (2006.01); D06M 101/28 (2006.01); D06M 101/40 (2006.01)

CPC D06M 15/53 (2013.01) [D04H 1/4242 (2013.01); D04H 1/43 (2013.01); D04H 3/002 (2013.01); D04H 3/007 (2013.01); D04H 3/02 (2013.01); D06M 2101/28 (2013.01); D06M 2101/40 (2013.01); D06M 2200/30 (2013.01); D10B 2101/12 (2013.01); D10B 2401/04 (2013.01)]

4 Claims

1. A treatment agent for flame-resistant fiber nonwoven fabric production or for carbon fiber nonwoven fabric production, the treatment agent comprising a polyether compound in which ethylene oxide and propylene oxide are added to an alcohol, wherein the treatment agent is free of an organic phosphorous compound, the alcohol comprises an aliphatic alcohol that is trihydric, and the polyether compound has a mass average molecular weight of 13,500 to 40,000, wherein the polyether compound is such that when the molar ratio in total of ethylene oxide and propylene oxide added in the molecule is taken as 100% by mol, ethylene oxide is added at a ratio of 25% to 71% by mol to the alcohol and propylene oxide is added at a ratio of 75% to 29% by mol to the alcohol.