	US 12,442,110 B2
	Method for separating fibers and method for producing modacrylic fiber, polyvinyl chloride fiber and polyester fiber
Sho Sakata, Hyogo (JP)
Assigned to KANEKA CORPORATION, Osaka (JP)
Filed by KANEKA CORPORATION, Osaka (JP)
Filed on Mar. 26, 2024, as Appl. No. 18/616,589.
Claims priority of application No. 2023-050111 (JP), filed on Mar. 27, 2023.
Prior Publication US 2024/0328036 A1, Oct. 3, 2024
Int. Cl. D01F 6/40 (2006.01); D01F 1/10 (2006.01); D01F 6/10 (2006.01); D01F 6/62 (2006.01)

CPC D01F 6/40 (2013.01) [D01F 1/10 (2013.01); D01F 6/10 (2013.01); D01F 6/62 (2013.01)]

6 Claims

1. A method for separating fibers contained in a fiber mixture from the fiber mixture, the method comprising:

a step of mixing the fiber mixture containing at least two selected from the group consisting of a modacrylic fiber, a polyvinyl chloride fiber and a polyester fiber, and a liquid mixture containing calcium chloride, a nonionic surfactant and water.