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    Polyethylene films and method of making the same
    1.
    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。

    POLYETHYLENE FILMS AND METHOD OF MAKING THE SAME
    2.
    发明申请
    POLYETHYLENE FILMS AND METHOD OF MAKING THE SAME 有权
    聚乙烯薄膜及其制备方法

    公开(公告)号：US20100119793A1

    公开(公告)日：2010-05-13

    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： B32B27/32 ,  C08F210/02 ,  C08F210/14 ,  B29C47/14

    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。

    APPARATUS AND METHOD FOR EXOTHERMIC AND ENDOTHERMIC REACTIONS
    6.
    发明申请
    APPARATUS AND METHOD FOR EXOTHERMIC AND ENDOTHERMIC REACTIONS 审中-公开
    装置和方法用于外部和内部反应

    公开(公告)号：US20090215190A1

    公开(公告)日：2009-08-27

    申请号：US12389820

    申请日：2009-02-20

    申请人： Pamela J. Stirn ,  Charles A. Nielsen ,  Sylvie Desjardins ,  David R. Neithamer ,  Paul L. Morabito ,  Marc A. Springs

    发明人： Pamela J. Stirn ,  Charles A. Nielsen ,  Sylvie Desjardins ,  David R. Neithamer ,  Paul L. Morabito ,  Marc A. Springs

    IPC分类号： G01N25/00

    CPC分类号： G01N25/484 ,  G01K17/00

    摘要： The present invention generally relates to an apparatus and method for running a plurality of essentially simultaneous exothermic reactions, endothermic reactions, or a combination thereof in sealed reactors and obtaining physico-chemical data, preferably temperature data, and, optionally, time data, for the reactions, wherein reaction mixtures in the sealed reactors are adiabatically thermally insulated from one another so that temperature in one sealed reactor does not materially affect temperature in any other, including an adjacent, sealed reactor.

    摘要翻译： 本发明一般涉及用于在密封反应器中运行多个基本上同时进行的放热反应或吸热反应或其组合的装置和方法，并获得物理化学数据，优选温度数据，以及可选地时间数据，用于 反应，其中密封反应器中的反应混合物彼此绝热地绝热，使得一个密封的反应器中的温度不会在任何其它物质（包括相邻的密封反应器）中实质性地影响温度。