公开(公告)号：US20010004574A1

公开(公告)日：2001-06-21

申请号：US09773901

申请日：2001-01-31

申请人： BBA Nonwovens Simpsonville, Inc.

发明人： Scott L. Gessner ,  J. Darrell Gillespie ,  Jared A. Austin ,  David D. Newkirk ,  William Fowells

IPC分类号： D01F006/46 ,  D04H001/54 ,  C08L023/04 ,  C08L023/10

CPC分类号： D04H3/16 ,  B32B5/04 ,  D04H1/4291 ,  D04H1/498 ,  D04H1/54 ,  D04H1/559 ,  D04H1/56 ,  D04H3/007 ,  D04H3/14 ,  Y10T442/348 ,  Y10T442/3886 ,  Y10T442/3976 ,  Y10T442/62 ,  Y10T442/64 ,  Y10T442/642 ,  Y10T442/66 ,  Y10T442/663 ,  Y10T442/674 ,  Y10T442/678 ,  Y10T442/679 ,  Y10T442/68

摘要： Nonwoven fabrics and fabric laminates are formed from continuous filaments or staple fibers of a select blend of specific grades of polyethylene and polypropylene which give improved fabric performance not heretofore recognized or described, such as high abrasion resistance, good tensile properties, excellent softness and the like. Furthermore, these blends have excellent melt spinning and processing properties which permit efficiently producing nonwoven fabrics at high productivity levels. The polymers are present as a lower-melting dominant continuous phase and at least one higher-melting noncontinuous phase dispersed therein. The lower-melting continuous phase forms at least 70 percent by weight of the fiber and comprises a linear low density polyethylene polymer of a melt index of greater than 10 and a density of less than 0.945 g/cc. At least one higher-melting noncontinuous phase comprises a polypropylene polymer with melt flow rate of greater than 20 g/10 min.

摘要翻译： 无纺织物和织物层压体由特定等级的聚乙烯和聚丙烯的选择性共混物的连续长丝或短纤维形成，其提供迄今未被认识到或描述的改善的织物性能，例如高耐磨性，良好的拉伸性能，优异的柔软性等 。 此外，这些共混物具有优异的熔融纺丝和加工性质，其允许以高生产率水平有效地生产非织造织物。 聚合物作为较低熔点的主要连续相和分散在其中的至少一个较高熔点非连续相存在。 低熔点连续相形成纤维的至少70重量％，并且包含熔体指数大于10且密度小于0.945g / cc的线性低密度聚乙烯聚合物。 至少一个较高熔点的非连续相包含熔体流动速率大于20g / 10min的聚丙烯聚合物。

公开(公告)号：US20010005662A1

公开(公告)日：2001-06-28

申请号：US09773880

申请日：2001-01-31

申请人： BBA Nonwovens Simpsonville. Inc.

发明人： Scott L. Gessner ,  Darrell Gillespie ,  Jared A. Austin ,  David D. Newkirk ,  William Fowells

IPC分类号： B32B027/12 ,  B32B027/32

CPC分类号： D04H3/16 ,  B32B5/04 ,  D04H1/4291 ,  D04H1/498 ,  D04H1/54 ,  D04H1/559 ,  D04H1/56 ,  D04H3/007 ,  D04H3/14 ,  Y10T442/348 ,  Y10T442/3886 ,  Y10T442/3976 ,  Y10T442/62 ,  Y10T442/64 ,  Y10T442/642 ,  Y10T442/66 ,  Y10T442/663 ,  Y10T442/674 ,  Y10T442/678 ,  Y10T442/679 ,  Y10T442/68

摘要： Nonwoven fabrics and fabric laminates are formed from continuous filaments or staple fibers of a select blend of specific grades of polyethylene and polypropylene which give improved fabric performance not heretofore recognized or described, such as high abrasion resistance, good tensile properties, excellent softness and the like. Furthermore, these blends have excellent melt spinning and processing properties which permit efficiently producing nonwoven fabrics at high productivity levels. The polymers are present as a lower-melting dominant continuous phase and at least one higher-melting noncontinuous phase dispersed therein. The lower-melting continuous phase forms at least 70 percent by weight of the fiber and comprises a linear low density polyethylene polymer of a melt index of greater than 10 and a density of less than 0.945 g/cc. At least one higher-melting noncontinuous phase comprises a polypropylene polymer with melt flow rate of greater than 20 g/10 min.