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    Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers
    1.
    发明授权
    Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers 失效
    来自多组分聚烯烃纤维的无纺织物和织物层压材料

    公开(公告)号：US06465378B2

    公开(公告)日：2002-10-15

    申请号：US09773901

    申请日：2001-01-31

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

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

    IPC分类号： B32B506

    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。 至少一种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。

    Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers
    4.
    发明授权
    Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers 失效
    来自多组分聚烯烃纤维的无纺织物和织物层压材料

    公开(公告)号：US06448194B2

    公开(公告)日：2002-09-10

    申请号：US09773845

    申请日：2001-01-31

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

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

    IPC分类号： D04H154

    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存在且至少一个较高熔点的非连续相分散在其中低熔点连续相形成至少70重量％的纤维，并且包含熔体的线性低密度聚乙烯聚合物 指数大于10，密度小于0.945g / cc。 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。

    Distribution enhanced polyolefin meltspinning process and product
    7.
    发明授权
    Distribution enhanced polyolefin meltspinning process and product 失效
    分布增强聚烯烃熔融工艺和产品

    公开(公告)号：US5549867A

    公开(公告)日：1996-08-27

    申请号：US333651

    申请日：1994-11-03

    申请人： Scott L. Gessner ,  William Fowells

    发明人： Scott L. Gessner ,  William Fowells

    IPC分类号： D01F6/04 ,  D01F6/06 ,  D01D5/088

    CPC分类号： D01F6/06 ,  D01F6/04 ,  Y10T442/681

    摘要： Improved meltspinning productivity is achieved by employing polyolefin resins having key molecular weight distribution and rheological property parameters within predetermined ranges. These parameters include the molecular weight distribution breadth parameter, M.sub.z /M.sub.n ; and rheological property parameters of flow rate ratio, I.sub.10 /I.sub.2, and the power law index, n, of the regression analysis viscosity equation. These parameters additionally include one or both of the z-average molecular weight, M.sub.z, of the resin, or the second order constant, b.sub.2, of the regression analysis viscosity equation, and unless both of the latter two parameters are met, the parameters further include the die swell and the spinnability factor (determined from the relationship between die swell and MFR) of the resin.

    摘要翻译： 通过使用在预定范围内具有关键分子量分布和流变特性参数的聚烯烃树脂来实现改进的熔融生产率。 这些参数包括分子量分布宽度参数，Mz / Mn; 流变比流变特性参数I10 / I2和回归分析粘度方程的幂律指数n。 这些参数另外包括回归分析粘度方程的z-平均分子量Mz，或树脂的二次常数b2中的一个或两个，并且除非满足后两个参数，否则参数进一步 包括模具膨胀和可塑性因子（由模头膨胀和MFR之间的关系确定）。

    Distribution enhanced polyolefin product
    8.
    发明授权
    Distribution enhanced polyolefin product 失效
    分布增强聚烯烃产品

    公开(公告)号：US5612123A

    公开(公告)日：1997-03-18

    申请号：US635332

    申请日：1996-04-19

    申请人： Scott L. Gessner ,  William Fowells

    发明人： Scott L. Gessner ,  William Fowells

    IPC分类号： D01F6/04 ,  D01F6/06 ,  D03D3/00

    CPC分类号： D01F6/06 ,  D01F6/04 ,  Y10T442/681

    摘要： Improved meltspinning productivity is achieved by employing polyolefin resins having key molecular weight distribution and rheological property parameters within predetermined ranges. These parameters include the molecular weight distribution breadth parameter, M.sub.z /M.sub.n ; and rheological property parameters of flow rate ratio, I.sub.10 /I.sub.2, and the power law index, n, of the regression analysis viscosity equation. These parameters additionally include one or both of the z-average molecular weight, M.sub.z, of the resin, or the second order constant, b.sub.2, of the regression analysis viscosity equation, and unless both of the latter two parameters are met, the parameters further include the die swell and the spinnability factor (determined from the relationship between die swell and MFR) of the resin.

    摘要翻译： 通过使用在预定范围内具有关键分子量分布和流变特性参数的聚烯烃树脂来实现改进的熔融生产率。 这些参数包括分子量分布宽度参数，Mz / Mn; 流变比流变特性参数I10 / I2和回归分析粘度方程的幂律指数n。 这些参数另外包括回归分析粘度方程的z-平均分子量Mz，或树脂的二次常数b2中的一个或两个，并且除非满足后两个参数，否则参数进一步 包括模具膨胀和可塑性因子（由模头膨胀和MFR之间的关系确定）。