	US 11,993,867 B2
	Spun ABPBI fibers and process for preparing the same
Prakash D. Trivedi, Maharashtra (IN); Mathew Abraham, Maharashtra (IN); and Amit Kundu, Maharashtra (IN)
Assigned to GHARDA CHEMICALS LIMITED, Maharashtra (IN)
Appl. No. 17/274,935
Filed by Gharda Chemicals Limited, Maharashtra (IN)
PCT Filed Sep. 12, 2019, PCT No. PCT/IB2019/057697 § 371(c)(1), (2) Date Mar. 10, 2021, PCT Pub. No. WO2020/053803, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 201821034448 (IN), filed on Sep. 12, 2018.
Prior Publication US 2022/0033996 A1, Feb. 3, 2022
Int. Cl. D01D 5/06 (2006.01); D01D 10/06 (2006.01); D01F 6/74 (2006.01)

CPC D01F 6/74 (2013.01) [D01D 5/06 (2013.01); D01D 10/06 (2013.01)]

17 Claims

1. Spun ABPBI fibers, wherein the spun ABPBI fibers have the following properties:

a. filaments in the range of 1.5 denier 12.0 denier;

b. tenacity in the range of 2.5 grams per denier to 4.0 grams per denier;

c. break strength in the range of 4.0 gmf to 15 gmf; and

d. elongation at break in the range of 15-25%.