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    POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, FIBERS MADE THEREFROM, AND METHOD OF MAKING THE SAME
    4.
    发明申请
    POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, FIBERS MADE THEREFROM, AND METHOD OF MAKING THE SAME 有权

    公开(公告)号：US20110092937A1

    公开(公告)日：2011-04-21

    申请号：US12739511

    申请日：2009-07-09

    申请人： Randy E. Pepper ,  Mridula Kapur ,  Gert J. Claasen ,  Edward N. Knickerbocker ,  Nathan J. Wiker ,  William J. Michie, JR. ,  Mark B. Davis

    发明人： Randy E. Pepper ,  Mridula Kapur ,  Gert J. Claasen ,  Edward N. Knickerbocker ,  Nathan J. Wiker ,  William J. Michie, JR. ,  Mark B. Davis

    IPC分类号： A61F13/51 ,  C08F210/02 ,  C08F4/72 ,  B29C47/00 ,  D04H1/56 ,  B32B5/02 ,  D03D15/00 ,  D04H13/00 ,  D04B21/00 ,  D04H1/46

    CPC分类号： D01F6/30 ,  C08F210/02 ,  C08L23/04 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2205/16 ,  C08L2314/06 ,  D01D5/08 ,  D01D5/10 ,  D01D5/12 ,  D01D10/02 ,  D01F6/04 ,  D04H1/56 ,  D04H3/007 ,  D04H3/16 ,  Y10T428/249921 ,  Y10T442/30 ,  Y10T442/3976 ,  Y10T442/60 ,  C08L2666/06

    摘要： The instant invention is a polyethylene composition, method of producing the same, fibers made therefrom, and method of making the same. The polyethylene composition according to instant invention comprises: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers. The polyethylene composition according to instant invention has a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition. The process for producing the inventive polyethylene composition comprises the steps of: (1) (co)polymerizing ethylene and optionally one or more α-olefin comonomers in the presence of a hafnium based metallocene catalyst via a gas phase (co)polymerization process in a single stage reactor; and (2) thereby producing the polyethylene composition having a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition. The fibers according to the instant invention comprise a polyethylene composition comprising: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition. The process for making a fiber according to instant invention comprises the steps of: (1) selecting a polyethylene composition comprising: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition; (2) spinning the polyethylene composition into a fiber; and (3) thereby forming the fiber.

    Films, Packages Prepared Therefrom, and Methods of Use
    7.
    发明申请
    Films, Packages Prepared Therefrom, and Methods of Use 审中-公开
    电影，包装准备及使用方法

    公开(公告)号：US20080273820A1

    公开(公告)日：2008-11-06

    申请号：US12091017

    申请日：2006-10-24

    申请人： Nathan J. Wiker ,  Jose V. Saavedra

    发明人： Nathan J. Wiker ,  Jose V. Saavedra

    IPC分类号： B65D33/01 ,  B32B3/10 ,  B26F1/00 ,  C08F10/02

    CPC分类号： B32B3/266 ,  B29D7/01 ,  B32B27/08 ,  B32B27/32 ,  B32B2250/24 ,  B32B2307/724 ,  B32B2307/7265 ,  B32B2439/00 ,  B32B2553/00 ,  C08F210/16 ,  Y10T83/0481 ,  Y10T428/24273 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/20 ,  C08F2500/26

    摘要： The invention relates to perforated films comprising at least one layer, and to packages prepared from the same. Such packages contain a combination of perforation sizes and perforation densities that allows for effective air removal, during a filling, conveying, and palletizing process, and especially during the pressurized filling of fine powder substances. In particular, the invention provides a perforated film, comprising at least one layer, and wherein the at least one layer comprises perforations that are individually of a size less than, or equal to, 100 microns (μm), and wherein the ratio of the total perforation area to the total film surface area is from 400,000 to 2,000,000 square micron per square inch of film (μm2)/(in)2.

    摘要翻译： 本发明涉及包含至少一层的穿孔膜，以及由其制备的包装。 这种包装包含穿孔尺寸和穿孔密度的组合，其允许在填充，输送和码垛过程期间有效地除去空气，特别是在细粉末物质的加压填充期间。 特别地，本发明提供了一种穿孔膜，其包括至少一层，并且其中所述至少一层包括单独尺寸小于或等于100微米（mum）的穿孔，并且其中 对于总膜表面积的总穿孔面积为400,000至2,000,000平方微米/平方英寸膜（姆姆2/2）/（英寸）2倍。

    Polyethylene blend composition having a reduced chill roll buildup during extrusion process
    8.
    发明授权
    Polyethylene blend composition having a reduced chill roll buildup during extrusion process 有权
    聚乙烯共混组合物在挤出过程中累积降低的冷却辊

    公开(公告)号：US09000096B2

    公开(公告)日：2015-04-07

    申请号：US14115948

    申请日：2011-05-27

    申请人： Jason C. Brodil ,  James L. Cooper ,  Nathan J. Wiker

    发明人： Jason C. Brodil ,  James L. Cooper ,  Nathan J. Wiker

    IPC分类号： C08L23/06 ,  C08L23/08 ,  B32B27/32 ,  C08L23/04 ,  C08J5/18 ,  C08F2/34 ,  C08F4/6192

    CPC分类号： C09D123/20 ,  C08J5/18 ,  C08J2323/08 ,  C08J2423/06 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/02 ,  C08L2207/066 ,  C08L2314/06 ,  C09D123/0815 ,  Y10T428/31938 ,  C08L2666/06

    摘要： The instant invention provides a polyethylene blend composition having reduced chill roll buildup during extrusion process, and films and coating layers made therefrom. The polyethylene blend composition according to the present invention provide reduced chill roll buildups during extrusion process, and comprises: (a) from 60 to 95 percent by weight of a linear polyethylene composition comprising less than or equal to 100 percent by weight of the units derived from ethylene, and less than 15 percent by weight of units derived from one or more α-olefin comonomers; wherein said linear polyethylene composition has a density in the range of from 0.917 to 0.975 g/cm3, a molecular weight distribution (Mw/Mn) in the range of from 1.70 to 3.62, a melt index (I2) in the range of from 2 to 50 g/10 minutes, and a vinyl unsaturation in the range of from less than 0.06 vinyls per one thousand carbon atoms present in the linear polyethylene composition; and (b) from 5 to 40 percent by weight of a low density polyethylene composition (LDPE) having a density in the range of from 0.915 to 0.930 g/cm3, and a melt index (I2) in the range of from 0.4 to 10; wherein the polyethylene blend composition has a density in the range of 0.917 to 0.960 g/cm3 and a melt index (I2) in the range of from 2 to 30 g/10 minutes.

    摘要翻译： 本发明提供了一种聚乙烯共混组合物，其在挤出过程中具有减少的冷却辊积聚，以及由其制成的薄膜和涂层。 根据本发明的聚乙烯共混物组合物在挤出过程中提供减少的冷却辊积累，并且包括：（a）60至95重量％的包含小于或等于100重量％衍生的单元的线性聚乙烯组合物 和小于15重量％的衍生自一种或多种α-烯烃共聚单体的单元; 其中所述线型聚乙烯组合物的密度范围为0.917-0.975g / cm3，分子量分布（Mw / Mn）在1.70-3.62的范围内，熔体指数（I 2）在2 至50g / 10分钟，以及存在于线性聚乙烯组合物中的每1000个碳原子的小于0.06个乙烯基的乙烯基不饱和度; 和（b）5-40重量％的密度为0.915-0.930g / cm3的低密度聚乙烯组合物（LDPE），熔体指数（I 2）为0.4-10 ; 其中所述聚乙烯共混组合物具有在0.917至0.960g / cm 3范围内的密度和2至30g / 10分钟范围内的熔体指数（I 2）。

    POLYETHYLENE BLEND COMPOSITION HAVING A REDUCED CHILL ROLL BUILDUP DURING EXTRUSION PROCESS
    9.
    发明申请
    POLYETHYLENE BLEND COMPOSITION HAVING A REDUCED CHILL ROLL BUILDUP DURING EXTRUSION PROCESS 有权
    在挤出过程中具有减少的冷冻建筑的聚乙烯混合组合物

    公开(公告)号：US20140221558A1

    公开(公告)日：2014-08-07

    申请号：US14115948

    申请日：2011-05-27

    申请人： Jason C. Brodil ,  James L. Cooper ,  Nathan J. Wiker

    发明人： Jason C. Brodil ,  James L. Cooper ,  Nathan J. Wiker

    IPC分类号： C08L23/08 ,  C08J5/18

    CPC分类号： C09D123/20 ,  C08J5/18 ,  C08J2323/08 ,  C08J2423/06 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/02 ,  C08L2207/066 ,  C08L2314/06 ,  C09D123/0815 ,  Y10T428/31938 ,  C08L2666/06

    摘要： The instant invention provides a polyethylene blend composition having reduced chill roll buildup during extrusion process, and films and coating layers made therefrom. The polyethylene blend composition according to the present invention provide reduced chill roll buildups during extrusion process, and comprises: (a) from 60 to 95 percent by weight of a linear polyethylene composition comprising less than or equal to 100 percent by weight of the units derived from ethylene, and less than 15 percent by weight of units derived from one or more α-olefin comonomers; wherein said linear polyethylene composition has a density in the range of from 0.917 to 0.975 g/cm3, a molecular weight distribution (Mw/Mn) in the range of from 1.70 to 3.62, a melt index (I2) in the range of from 2 to 50 g/10 minutes, and a vinyl unsaturation in the range of from less than 0.06 vinyls per one thousand carbon atoms present in the linear polyethylene composition; and (b) from 5 to 40 percent by weight of a low density polyethylene composition (LDPE) having a density in the range of from 0.915 to 0.930 g/cm3, and a melt index (I2) in the range of from 0.4 to 10; wherein the polyethylene blend composition has a density in the range of 0.917 to 0.960 g/cm3 and a melt index (I2) in the range of from 2 to 30 g/10 minutes.

    摘要翻译： 本发明提供了一种聚乙烯共混组合物，其在挤出过程中具有减少的冷却辊积聚，以及由其制成的薄膜和涂层。 根据本发明的聚乙烯共混物组合物在挤出过程中提供减少的冷却辊积累，并且包括：（a）60至95重量％的包含小于或等于100重量％衍生的单元的线性聚乙烯组合物 和小于15重量％的衍生自一种或多种α-烯烃共聚单体的单元; 其中所述线型聚乙烯组合物的密度范围为0.917-0.975g / cm3，分子量分布（Mw / Mn）在1.70-3.62的范围内，熔体指数（I 2）在2 至50g / 10分钟，以及存在于线性聚乙烯组合物中的每1000个碳原子的小于0.06个乙烯基的乙烯基不饱和度; 和（b）5-40重量％的密度为0.915-0.930g / cm3的低密度聚乙烯组合物（LDPE），熔体指数（I 2）为0.4-10 ; 其中所述聚乙烯共混组合物具有在0.917至0.960g / cm 3范围内的密度和2至30g / 10分钟范围内的熔体指数（I 2）。

    Polyethylene films and method of making the same
    10.
    发明授权
    Polyethylene films and method of making the same 有权
    聚乙烯薄膜及其制作方法

    公开(公告)号：US08273449B2

    公开(公告)日：2012-09-25

    申请号：US12594963

    申请日：2008-04-04

    申请人： Sylvie Desjardins ,  Marc A. Springs ,  Phillip D. Hustad ,  Nathan J. Wiker ,  Jesus Nieto ,  Wayde V. Konze

    发明人： Sylvie Desjardins ,  Marc A. Springs ,  Phillip D. Hustad ,  Nathan J. Wiker ,  Jesus Nieto ,  Wayde V. Konze

    IPC分类号： C08F210/02 ,  B32B27/32

    CPC分类号： C08F210/16 ,  C08J5/18 ,  C08J2323/08 ,  C08F4/52 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/26

    摘要： The instant invention is a polyethylene film, and method of making the same. The polyethylene film according to instant invention includes at least one heterogeneously branched ethylene/α-olefin copolymer having a density in the range of about 0.910 to about 0.930 g/cm3, a molecular weight distribution in the range of about 2.8 to 3.8, a melt index (I2) in the range of about 0.3 to about 4 g/10 min, and an I10/I2 ratio in the range of 6.5 to about 7.8. The film has a normalized dart impact strength of equal or greater than (6666-7012*density) g/mil, a normalized tear strength of equal or greater than (440*e−(density−0.915)2/2*(0.00949)2) g/mil, and a haze in the range of 3 to 10 percent. The method of making the polyethylene film according to instant invention includes the following steps: (1) providing at least one heterogeneously branched ethylene/α-olefin copolymer having a density in the range of about 0.910 to about 0.930 g/cm3, a molecular weight distribution in the range of about 2.8 to 3.8, a melt index (I2) in the range of about 0.3 to about 4 g/10 min, and an I10/I2 ratio in the range of 6.5 to about 7.8; (2) processing the heterogeneously branched ethylene/α-olefin copolymer via blown film extrusion process or cast film extrusion process; and (3) thereby forming a film having a normalized dart impact strength of equal or greater than (6666-7012*density) g/mil, a normalized tear strength of equal or greater than (440*e−(density−0.915)2/2*(0.00949)2) g/mil, and a haze in the range of 3 to 10 percent.

    摘要翻译： 本发明是一种聚乙烯薄膜及其制造方法。 根据本发明的聚乙烯膜包括至少一种非均相支化的乙烯/α-烯烃共聚物，其密度在约0.910至约0.930g / cm 3范围内，分子量分布在约2.8至3.8的范围内，熔体 指数（I 2）在约0.3至约4g / 10min的范围内，I10 / I2比在6.5至约7.8的范围内。 标准化的落镖冲击强度等于或大于（6666-7012 *密度）g / mil，归一化的撕裂强度等于或大于（440 * e-（密度-0.915）2/2 *（0.00949） 2）g / mil，雾度在3％至10％的范围内。 根据本发明的制备聚乙烯膜的方法包括以下步骤：（1）提供至少一种密度在约0.910至约0.930g / cm 3范围内的非均匀支化的乙烯/α-烯烃共聚物，分子量 分布在约2.8至3.8的范围内，熔体指数（I 2）在约0.3至约4g / 10min的范围内，I10 / I2比在6.5至约7.8的范围内; （2）通过吹膜挤出法或流延膜挤出法处理非均匀支化的乙烯/α-烯烃共聚物; （3），由此形成具有等于或大于（6666-7012 *密度）g / mil的标准化落镖冲击强度的膜，标准化的撕裂强度等于或大于（440 * e-（密度-0.915）2 /2*(0.00949)2）g / mil，雾度在3％到10％的范围内。