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    • 4. 发明申请
    • Fibers for Polyethylene Nonwoven Fabric
    • 聚乙烯无纺布纤维
    • US20080146110A1
    • 2008-06-19
    • US11578646
    • 2005-04-08
    • Rajen M. PatelGert ClaasenWenbin LiangKarin KatzerKenneth B. StewartThomas AllgeuerJesus Nieto
    • Rajen M. PatelGert ClaasenWenbin LiangKarin KatzerKenneth B. StewartThomas AllgeuerJesus Nieto
    • D04H13/00D02G3/00
    • D01F6/46D01F8/06D04H3/007D04H3/147Y10T428/298Y10T442/608
    • The present invention relates to nonwoven webs or fabrics. In particular, the present invention relates to nonwoven webs having superior abrasion resistance and excellent softness characteristics. The nonwoven materials comprise monocomponent fibers having a surface comprising a polyethylene, said nonwoven material having a fuzz/abrasion of less than 0.7 mg/cm3. The present invention is also related to fibers having a diameter in a range of from 0.1 to 50 denier, said fibers comprising a polymer blend, wherein the polymer blend comprises: from 40 weight percent to 80 weight percent (by weight of the polymer blend) of a first polymer which is a homogeneous ethylene/α-olefin interpolymer having: a melt index of from about 1 to about 1000 grams/10 minutes, and a density of from 0.870 to 0.950 grams/centimeter3, and from 74 to 20 percent by weight of a second polymer which is an ethylene homopolymer or an ethylene/α-olefin interpolymer having a melt index of from about 1 to about 1000 grams/10 minutes, and preferably a density which is at least 0.01 grams/centimeter3 greater than the density of the first polymer.
    • 本发明涉及非织造纤维网或织物。 特别地,本发明涉及非织造纤维网,其具有优异的耐磨性和优异的柔软性。 非织造材料包括具有包含聚乙烯的表面的单组分纤维,所述非织造材料具有小于0.7mg / cm 3的绒毛/磨损。 本发明还涉及直径在0.1-50旦范围内的纤维,所述纤维包括聚合物共混物,其中聚合物共混物包含:40重量%至80重量%(以聚合物共混物的重量计) 的第一聚合物,其是均匀的乙烯/α-烯烃互聚物,其熔体指数为约1至约1000克/ 10分钟,密度为0.870-0.950克/厘米3 ,和74至20重量%的第二聚合物,其是熔体指数为约1至约1000克/ 10分钟的乙烯均聚物或乙烯/α-烯烃互聚物,优选至少为密度 0.01克/厘米3比第一聚合物的密度大。
    • 5. 发明申请
    • Nonwoven fabric and fibers
    • 无纺布和纤维
    • US20070173162A1
    • 2007-07-26
    • US11578760
    • 2005-04-08
    • Samuel EthiopiaGert ClaasenRajen PatelKenneth StewartThomas AllgeuerEdward KnickerbockerRandy PepperThomas Pressly
    • Samuel EthiopiaGert ClaasenRajen PatelKenneth StewartThomas AllgeuerEdward KnickerbockerRandy PepperThomas Pressly
    • C08L23/04D04H13/00
    • D04H3/16C08L23/10C08L23/14C08L23/16D01F6/46D04H3/14Y10T442/60C08L2666/06
    • The present invention relates to nonwoven webs or fabrics. In particular, the present invention relates to nonwoven webs having superior abrasion resistance and excellent softness characteristics. The nonwoven materials comprise fibers made from of a polymer blend of isotactic polypropylene, reactor grade propylene based elastomers or plastomers, and optionally, a homoge-neously branched ethylene/alpha olefin plastomer or elastomer. The isotactic polypropylene can be homopolymer polypropylene, and random copolymers of propylene and one or more alpha-olefins. The reactor grade propylene based elastomers or plastomers plastomer have a molecular weight distribution of less than about 3.5, and a heat of fusion less than about 90 joules/gm. In particular, the reactor grade propylene based elastomers or plastomers contains from about 3 to about 15 percent by weight of units derived from an ethylene, and a melt flow rate of from about 2 to about 200 grams/10 minutes. The present invention also relates to cold drawn textured fibers comprising of a polymer blend of isotactic polypropylene and reactor grade propylene based elastomers or plastomers.
    • 本发明涉及非织造纤维网或织物。 特别地,本发明涉及非织造纤维网,其具有优异的耐磨性和优异的柔软性。 非织造材料包括由全同立构聚丙烯,反应器级丙烯基弹性体或塑性体的聚合物共混物和任选的均相支化的乙烯/α-烯烃塑性体或弹性体制成的纤维。 全同立构聚丙烯可以是均聚聚丙烯,丙烯与一种或多种α-烯烃的无规共聚物。 反应器级丙烯基弹性体或塑性体塑性体的分子量分布小于约3.5,熔融热小于约90焦耳/克。 特别地,反应器级丙烯基弹性体或塑性体含有约3至约15重量%的衍生自乙烯的单元,熔体流动速率为约2至约200克/ 10分钟。 本发明还涉及包含全同立构聚丙烯和反应器级丙烯基弹性体或塑性体的聚合物共混物的冷拉纹理纤维。