申请人:TSRC Corporation
公开号:EP3819339A1
公开(公告)日:2021-05-12
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 4,800of 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.
本发明提供了一种用于纤维或非织造布的聚合物组合物,该组合物包含乙烯基芳香族共聚物和基于聚合物组合物总重量 0 至 30 wt%的烯烃基聚合物。乙烯基芳香族共聚物由式 A1-B-A2 表示,其中嵌段 A1 和嵌段 A2 是相同或不同的乙烯基芳香族嵌段,嵌段 A1 或嵌段 A2 的峰值分子量为 3,800 至 4,800,嵌段 B 是氢化共轭二烯嵌段。乙烯基芳香族共聚物中共轭二烯单体的乙烯基结构含量为 32 wt% 至 50 wt%;乙烯基芳香族共聚物的熔体流动指数(MFI)为 20 g/10 min ∼ 60 g/10 min(230°C,2.16 kg)。本发明还提供了由聚合物组合物制成的纤维或无纺布。