公开(公告)号：EP1745167A1

公开(公告)日：2007-01-24

申请号：EP05735945.7

申请日：2005-04-08

申请人： The Dow Global Technologies Inc.

发明人： ETHIOPIA, Samuel ,  PATEL, Rajen, M. ,  CLAASEN, Gert, J. ,  STEWART, Kenneth, B., Jr. ,  ALLGEUER, Thomas, T. ,  PEPPER, Randy, E. ,  KNICKERBOCKER, Edward, N. ,  PRESSLY, Thomas, G.

IPC分类号： D01F6/46 ,  D04H3/14

CPC分类号： D04H3/16 ,  C08L23/10 ,  C08L23/14 ,  C08L23/16 ,  D01F6/46 ,  D04H3/14 ,  Y10T442/60 ,  C08L2666/06

摘要： 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 homogeneously 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.

公开(公告)号：EP1745171A1

公开(公告)日：2007-01-24

申请号：EP05735287.4

申请日：2005-04-08

申请人： The Dow Global Technologies Inc.

发明人： PATEL, Rajen, M. ,  CLAASEN, Gert, J. ,  LIANG, Wenbin ,  KATZER, Karin ,  STEWART, Kenneth, B., Jr ,  ALLGEUER, Thomas, T. ,  NIETO, Jesus

IPC分类号： D04H1/54

CPC分类号： D01F6/46 ,  D01F8/06 ,  D04H3/007 ,  D04H3/147 ,  Y10T428/298 ,  Y10T442/608

摘要： A fiber having a diameter in a range of from 0.1 to 50 denier, said fiber comprising a polymer blend, wherein the polymer blend comprises: a. from 26 weight percent to 80 weight percent (by weight of the polymer blend) of a first polymer which is a homogeneous ethylene/±-olefin interpolymer having: i. a melt index of from 1 to 1000 grams/10 minutes, and ii. a density of from 0.870 to 0.950 grams/centimeter 3 , and b. from 74 to 20 percent by weight of a second polymer which is an ethylene homopolymer or an ethylene/±-olefin interpolymer having: i. a melt index of from 1 to 1000 grams/10 minutes, and preferably ii. a density which is at least 0.01 grams/centimeter 3 greater than the density of the first polymer wherein the overall melt index for the polymer blend is greater than 18 g/10min.

摘要翻译： 一种纤维，其直径在0.1-50旦范围内，所述纤维包括聚合物共混物，其中所述聚合物共混物包含：a。 第二聚合物的重量百分比为26％至80％（重量），其为均匀的乙烯/ 熔体指数为1〜1000克/ 10分钟，ii。 密度为0.870至0.950克/厘米3，b。 74至20重量％的第二聚合物，其是乙烯均聚物或乙烯/±α-烯烃互聚物，其具有： 熔体指数为1〜1000克/ 10分钟，优选为2。 密度比第一聚合物的密度大至少0.01克/厘米3，其中聚合物共混物的总体熔体指数大于18克/ 10分钟。