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    Process for producing a polymer composition
    13.
    发明授权
    Process for producing a polymer composition 有权
    聚合物组合物的制造方法

    公开(公告)号：US06388017B1

    公开(公告)日：2002-05-14

    申请号：US09577952

    申请日：2000-05-24

    申请人： Max P. McDaniel ,  Anthony P. Eaton ,  Elizabeth A. Benham ,  Shawn R. Kennedy ,  Ashish M. Sukhadia ,  Rajendra K. Krishnaswamy ,  Kathy S. Collins

    发明人： Max P. McDaniel ,  Anthony P. Eaton ,  Elizabeth A. Benham ,  Shawn R. Kennedy ,  Ashish M. Sukhadia ,  Rajendra K. Krishnaswamy ,  Kathy S. Collins

    IPC分类号： C08L2300

    CPC分类号： C08L23/0815 ,  C08F210/16 ,  C08L23/04 ,  C08L2314/02 ,  C08L2314/06 ,  Y10S526/943 ,  C08L2666/04 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/26

    摘要： A process is provided for producing a polymer composition. The process comprises contacting a narrow molecular weight distribution base polymer and a high molecular weight polymer component. The base polymer is an ethylene polymer having a Mw/Mn less than about 5 and a melt flow index from about 0.2 g/10 min to about 20 g/10 min. The high molecular weight polymer component has a molecular weight distribution such that at least a substantial portion of its molecules have a molecular weight of greater than one million. The high molecular weight polymer component being incorporated is in an amount to give about 0.1% to about 10% by weight, based on the total weight of the polymer composition, of the molecules having a molecular weight greater than one million. The polymer composition has a higher bulk density than the base polymer. In addition, when the polymer composition is blown into film, the film has improved clarity over the base polymer.

    摘要翻译： 提供了一种制备聚合物组合物的方法。 该方法包括使窄分子量分布基质聚合物和高分子量聚合物组分接触。 基础聚合物是Mw / Mn小于约5，熔体流动指数为约0.2g / 10min至约20g / 10min的乙烯聚合物。 高分子量聚合物组分的分子量分布使其至少大部分分子的分子量大于100万。 引入的高分子量聚合物组分的量为基于聚合物组合物总重量的约0.1％至约10％重量的分子量大于100万的分子。 聚合物组合物具有比基础聚合物更高的堆积密度。 此外，当将聚合物组合物吹入薄膜时，该薄膜比基础聚合物具有更高的透明度。

    Processes that produce polymers
    14.
    发明授权
    Processes that produce polymers 失效
    生产聚合物的方法

    公开(公告)号：US06194526B1

    公开(公告)日：2001-02-27

    申请号：US09111213

    申请日：1998-07-07

    申请人： Elizabeth A. Benham ,  Rhutesh K. Shah ,  Ashish M. Sukhadia ,  Joel L. Martin ,  Max P. McDaniel

    发明人： Elizabeth A. Benham ,  Rhutesh K. Shah ,  Ashish M. Sukhadia ,  Joel L. Martin ,  Max P. McDaniel

    IPC分类号： C08F452

    CPC分类号： C08F210/16 ,  Y10S526/916 ,  C08F2/14 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/19 ,  C08F210/14

    摘要： A process to produce a polymer is provided. The process comprises polymerizing monomers wherein the monomers comprise ethylene, 1-butene, and 1-hexene. The total amount of 1-butene and 1-hexene in the polymer is less than 10 mole percent of the polymer, and the mole ratio of 1-butene to 1-hexene is in a range of 4:1 to 9:1. The polymerizing is conducted in a loop reactor under slurry polymerization conditions with a diluent that comprises isobutane, where the isobutane is a majority of the diluent by weight. A catalyst that comprises titanium, magnesium, and halide and a cocatalyst that comprises organoaluminum are utilized. The polymerizing is conducted at a temperature from 73° C. to 85° C. The polymer produced has a heterogeneity index (Mw/Mn) from about 3 to about 7, a density from about 0.915 to about 0.925 grams per cubic centimeter, a melt index from about 0.25 to about 3.5 grams per ten minutes, and a shear ratio from about 24 to about 30.

    摘要翻译： 提供了制备聚合物的方法。 该方法包括聚合单体，其中单体包括乙烯，1-丁烯和1-己烯。 聚合物中1-丁烯和1-己烯的总量小于聚合物的10摩尔％，1-丁烯与1-己烯的摩尔比在4:1至9:1的范围内。 在淤浆聚合条件下，使用包含异丁烷的稀释剂在环流反应器中进行聚合，其中异丁烷是重量份的大部分稀释剂。 使用包含钛，镁和卤化物的催化剂以及包含有机铝的助催化剂。 聚合在73℃至85℃的温度下进行。所生产的聚合物具有约3至约7的非均匀性指数（Mw / Mn），约0.915至约0.925克/立方厘米的密度， 熔体指数为约0.25至约3.5克/ 10分钟，剪切比为约24至约30。