公开(公告)号：US11718771B2

公开(公告)日：2023-08-08

申请号：US17091893

申请日：2020-11-06

Applicant: TSRC Corporation

Inventor： Tai-Yi Shiu ,  Feng-Yu Yang ,  Yu-Chuan Tsai ,  Der-Kai Sun ,  Ching Ting

IPC: C09J7/38 ,  C09J7/24 ,  C09J109/06 ,  C08L23/12 ,  C08L53/02 ,  C09J153/02 ,  C09J7/20 ,  C09J125/10

CPC classification number: C09J7/387 ,  C08L23/12 ,  C08L53/02 ,  C09J7/20 ,  C09J7/243 ,  C09J109/06 ,  C09J125/10 ,  C09J153/025 ,  C08K2201/019 ,  C09J2301/302 ,  C09J2301/312 ,  C09J2301/408 ,  C09J2409/00 ,  C09J2423/00 ,  C09J2425/00 ,  C09J2453/00

Abstract: The present invention provides a polymer composition for fibers or non-woven fabrics, comprising a vinyl aromatic based copolymer and 0 to 30 wt % of an olefin based polymer based on the total weight of the polymer composition. The vinyl aromatic copolymer is represented by a formula A1-B-A2, wherein block A1 and block A2 are the same or different vinyl aromatic blocks, block A1 or block A2 having 3,800 to 4,800 of a peak molecular weight, and block B is a hydrogenated conjugated diene block. A vinyl structure content of a conjugated diene monomer content in the vinyl aromatic based copolymer is from 32 wt % to 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). The present invention also provides the fibers or the non-woven fabrics made from the polymer composition.

公开(公告)号：US20210139692A1

公开(公告)日：2021-05-13

申请号：US17091893

申请日：2020-11-06

Applicant: TSRC Corporation

Inventor： Tai-Yi Shiu ,  Feng-Yu Yang ,  Yu-Chuan Tsai ,  Der-Kai Sun ,  Ching Ting

IPC: C08L53/02 ,  C08L23/12

Abstract: The present invention provides a polymer composition for fibers or non-woven fabrics, comprising a vinyl aromatic based copolymer and 0 to 30 wt % of an olefin based polymer based on the total weight of the polymer composition. The vinyl aromatic copolymer is represented by a formula A1-B-A2, wherein block A1 and block A2 are the same or different vinyl aromatic blocks, block A1 or block A2 having 3,800 to 4,800 of a peak molecular weight, and block B is a hydrogenated conjugated diene block. A vinyl structure content of a conjugated diene monomer content in the vinyl aromatic based copolymer is from 32 wt % to 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). The present invention also provides the fibers or the non-woven fabrics made from the polymer composition.