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    • 21. 发明授权
    • ARTIFICIAL GRASS YARN
    • 人造草纱
    • EP2752509B1
    • 2017-04-05
    • EP11807704.9
    • 2011-10-24
    • Dow Global Technologies LLC
    • SANDKUEHLER, PeterBENSASON, Selim
    • D01F6/30C08F210/16C08L23/08E01C13/08
    • E01C13/08C08F210/16C08L23/0815D01F6/30C08F210/14C08F2500/03C08F2500/10C08F2500/12C08F2500/17C08F2500/18C08F110/02
    • An artificial turf comprising a turf yarn prepared from an ethylene-based polymer composition comprising less than or equal to 100 percent by weight of the units derived from ethylene; and less than 30 percent by weight of units derived from one or more ±-olefin comonomers; wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant of equal to or greater than 40, a vinyl unsaturation of less than 100 vinyls per one million carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) equal to or greater than 1.75; a density in the range of 0.915 to 0.930 g/cm 3 , a melt index (I 2 ) in the range of from 0.8 to 5 g/10 minutes, a molecular weight distribution (M w /M n ) in the range of from 2 to 3.6, and a molecular weight distribution (M z /M w ) equal to or less than 3; and wherein the turf yarn exhibits one or more of the following properties (a) shrink of less than 4.8 %, and (b) curl of less than 0.5 is provided.
    • 一种人造草坪,其包含由基于乙烯的聚合物组合物制备的草皮纱线,所述基于乙烯的聚合物组合物包含小于或等于100重量%的衍生自乙烯的单元; 以及小于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等于或大于40的共聚单体分布常数,乙烯基聚合物组合物骨架中存在的每百万个碳原子小于100个乙烯基的乙烯基不饱和度; 零剪切粘度比(ZSVR)等于或大于1.75; 在0.915至0.930g / cm 3范围内的密度,在0.8至5g / 10分钟范围内的熔体指数(I 2),在从1至10g / 10分钟的范围内的分子量分布(M w / M n) 2至3.6,分子量分布(M z / M w)等于或小于3; 并且其中所述草坪纱具有以下性质中的一种或多种:(a)小于4.8%的收缩率,和(b)小于0.5的卷曲率。