	US 11,718,771 B2
	Polymer composition and fiber or non-woven fabric made therefrom
Tai-Yi Shiu, Kaohsiung (TW); Feng-Yu Yang, Kaohsiung (TW); Yu-Chuan Tsai, Kaohsiung (TW); Der-Kai Sun, Kaohsiung (TW); and Ching Ting, Kaohsiung (TW)
Assigned to TSRC Corporation, Kaohsiung (TW)
Filed by TSRC Corporation, Kaohsiung (TW)
Filed on Nov. 6, 2020, as Appl. No. 17/91,893.
Claims priority of provisional application 62/932,731, filed on Nov. 8, 2019.
Prior Publication US 2021/0139692 A1, May 13, 2021
Int. Cl. C09J 7/38 (2018.01); C09J 7/24 (2018.01); C09J 109/06 (2006.01); C08L 23/12 (2006.01); C08L 53/02 (2006.01); C09J 153/02 (2006.01); C09J 7/20 (2018.01); C09J 125/10 (2006.01)

CPC C09J 7/387 (2018.01) [C08L 23/12 (2013.01); C08L 53/02 (2013.01); C09J 7/20 (2018.01); C09J 7/243 (2018.01); C09J 109/06 (2013.01); C09J 125/10 (2013.01); C09J 153/025 (2013.01); C08K 2201/019 (2013.01); C09J 2301/302 (2020.08); C09J 2301/312 (2020.08); C09J 2301/408 (2020.08); C09J 2409/00 (2013.01); C09J 2423/00 (2013.01); C09J 2425/00 (2013.01); C09J 2453/00 (2013.01)]

20 Claims

1. A polymer composition for fibers or non-woven fabrics, comprising:

a vinyl aromatic based copolymer represented by a formula of A1-B-A2, wherein block A1 and block A2 represent identical or different vinyl aromatic blocks, block A1 or block A2 has a peak molecular weight of 3,800˜4,800, block B represents a hydrogenated conjugated diene block, a vinyl structure content of a conjugated diene monomer content in the vinyl aromatic based copolymer is 32 wt %˜50 wt %, and a melt flow index (MFI) of the vinyl aromatic based copolymer is 20 g/10 min˜60 g/10 min (230° C., 2.16 kg); and an olefin based polymer of 0˜30 wt % based on a total weight of the polymer composition.