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    • 19. 发明申请
    • BI-COMPONENT FIBER AND FABRICS MADE THEREFROM
    • 双组分纤维和织物制成
    • WO2013052638A1
    • 2013-04-11
    • PCT/US2012/058712
    • 2012-10-04
    • DOW GLOBAL TECHNOLOGIES LLC
    • BONAVOGLIA, BarbaraCLAASEN, Gert J.DEGROOT, Jacquelyn A.BENSASON, Selim
    • D01F8/06B32B5/24D04H3/16
    • B32B5/26B32B5/022B32B5/24D01F6/04D01F8/06D04H1/4291D04H3/007D04H3/16D04H13/00Y10T428/2929Y10T442/291Y10T442/637Y10T442/66Y10T442/681
    • The instant invention provides bi-component fibers and fabrics made therefrom. The bi-component fiber according to the present invention comprises: (a) from 5 to 95 percent by weight of a first component comprising at least one or more first polymers, based on the total weight of the bi-component fiber; (b) from 5 to 95 percent by weight of a second component comprising at least an ethylene-based polymer composition, based on the total weight of the bicomponent fiber, wherein said ethylene-based polymer composition comprises; (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 30 percent by weight of units derived from one or more α-olefin comonomers; wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.920 to 0.970 g/cm 3 , a melt index (I 2 ) in the range of from 10 to 40 g/10 minutes, a molecular weight distribution (M w /M n ) in the range of from 1.8 to 3.0, and a molecular weight distribution (M z /M w) in the range of from less than 2;; and wherein said bi-component fiber has a denier per filament in the range of from 0.5 to 10 g/9000 m.
    • 本发明提供了由其制成的双组分纤维和织物。 根据本发明的双组分纤维包含:(a)基于双组分纤维的总重量,5至95重量%的包含至少一种或多种第一聚合物的第一组分; (b)5至95重量%的基于双组分纤维的总重量的至少包含基于乙烯的聚合物组合物的第二组分,其中所述乙烯基聚合物组合物包含: (i)小于或等于100重量%的衍生自乙烯的单元; 和(ii)少于30重量%的衍生自一种或多种α-烯烃共聚单体的单元; 其中所述基于乙烯的聚合物组合物的特征在于具有在大于100至400的范围内的共聚单体分布常数,存在于乙烯基聚合物的主链中的每1000个碳原子的小于0.1个乙烯基的乙烯基不饱和度 组成; 零剪切粘度比(ZSVR)在1至小于2的范围内; 在0.920〜0.970g / cm 3范围内的密度,10〜40g / 10分钟的熔体指数(I 2),1.8〜3.0的分子量分布(Mw / Mn) 和分子量分布(Mz / Mw)在小于2的范围内。 并且其中所述双组分纤维的旦尼尔每丝纤维在0.5至10g /9000μm的范围内。