	US 12,410,554 B2
	System and method of accelerating polymer fiber stabilization via irradiation treatment
Xiaodong Li, Charlottesville, VA (US); Zan Gao, Willimantic, CT (US); Jiadeng Zhu, Charlottesville, VA (US); Yellapu V. Murty, Charlottesville, VA (US); Kenneth Brown, Charlottesville, VA (US); and Clifton Bumgardner, Charlottesville, VA (US)
Assigned to University of Virginia Patent Foundation, Charlottesville, VA (US)
Appl. No. 17/617,192
Filed by University of Virginia Patent Foundation, Charlottesville, VA (US)
PCT Filed Jun. 10, 2020, PCT No. PCT/US2020/037010 § 371(c)(1), (2) Date Dec. 7, 2021, PCT Pub. No. WO2020/252031, PCT Pub. Date Dec. 17, 2020.
Claims priority of provisional application 62/859,746, filed on Jun. 11, 2019.
Prior Publication US 2022/0235516 A1, Jul. 28, 2022
Int. Cl. D06M 10/00 (2006.01); D01F 9/22 (2006.01)

CPC D06M 10/001 (2013.01) [D01F 9/22 (2013.01); D10B 2101/12 (2013.01)]

36 Claims

1. A method for treating pre-cursor polymeric fibers, tows, yarns, or films, said method comprising:

irradiating the pre-cursor polymeric fibers, tows, yarns, or films with specified duration exposure to microwaves and/or ultraviolet light;

cooling the irradiated pre-cursor polymeric fibers, tows, yarns, or films;

wherein said pre-cursor polymeric fiber, tow, yarn, or film is a multi-component polymer composite comprised of a polymeric fiber, tow, yarn, or film and at least one or more constituent materials;

wherein the polymeric fiber, tow, yarn, or film comprises polyamide; and

wherein the at least one or more constituent materials comprises one of the following metallic compounds: CuCl, CuCl₂, or FeCl₃.