公开(公告)号：US08481666B2

公开(公告)日：2013-07-09

申请号：US12663871

申请日：2009-01-23

申请人： William Michie ,  Mark Davis ,  Nathan Wiker ,  Debra Wilson ,  Peter Schindler ,  John Garnett

发明人： William Michie ,  Mark Davis ,  Nathan Wiker ,  Debra Wilson ,  Peter Schindler ,  John Garnett

IPC分类号： C08F10/02 ,  C08F4/6592

CPC分类号： C08F210/16 ,  B29K2023/06 ,  C08L2314/06 ,  C08F210/14 ,  C08F2500/09 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2500/20 ,  C08F2500/11 ,  C08F2500/12

摘要： The instant invention is a polyethylene composition, method of producing the same, articles made therefrom, and method of making the same. The polyethylene composition according to the instant invention comprises (1) less than or equal to 100 percent by weight of the units derived from ethylene; and (2) less than 15 percent by weight of units derived from one or more α-olefin comonomers. The polyethylene composition according the instant invention has a density of equal to D g/cm3, wherein D=[(0.0034(Ln(I2))+0.9553], wherein I2 is melt index expressed in g/10 min, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.62, a melt index (I2) in the range of 2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, and a vinyl unsaturation of less than 0.06 vinyls per one thousand carbon atoms present in the backbone of the composition.

摘要翻译： 本发明是聚乙烯组合物，其制造方法，由其制成的制品及其制造方法。 根据本发明的聚乙烯组合物包含（1）小于或等于100重量％的衍生自乙烯的单元; 和（2）少于15重量％的衍生自一种或多种α-烯烃共聚单体的单元。 根据本发明的聚乙烯组合物具有等于D g / cm 3的密度，其中D = [（0.0034（Ln（I 2））+ 0.9553]，其中I 2是以g / 10分钟表示的熔体指数，分子量分布 （Mw / Mn）在1.70至3.62的范围内，熔体指数（I2）在2至1000g / 10分钟范围内，分子量分布（Mz / Mw）在小于2.5的范围内，以及 存在于组合物骨架中的每1000个碳原子的小于0.06个乙烯基的乙烯基不饱和度。

公开(公告)号：US20100298508A1

公开(公告)日：2010-11-25

申请号：US12663871

申请日：2009-01-23

申请人： William Michie ,  Mark Davis ,  Nathan Wiker ,  Debra Wilson ,  Peter Schindler ,  John Garnett

发明人： William Michie ,  Mark Davis ,  Nathan Wiker ,  Debra Wilson ,  Peter Schindler ,  John Garnett

IPC分类号： C08F210/02 ,  B29C45/00

CPC分类号： C08F210/16 ,  B29K2023/06 ,  C08L2314/06 ,  C08F210/14 ,  C08F2500/09 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2500/20 ,  C08F2500/11 ,  C08F2500/12

摘要： The instant invention is a polyethylene composition, method of producing the same, articles made therefrom, and method of making the same. The polyethylene composition according to the instant invention comprises (1) less than or equal to 100 percent by weight of the units derived from ethylene; and (2) less than 15 percent by weight of units derived from one or more α-olefin comonomers. The polyethylene composition according the instant invention has a density in the range of 0.907 to 0.975 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.62, a melt index (I2) in the range of 2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, and a vinyl unsaturation of less than 0.06 vinyls per one thousand carbon atoms present in the backbone of the composition. The process for producing a polyethylene composition according to the instant invention comprises the steps of: (1) (co)polymerizing ethylene and at least 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 inventive polyethylene composition, wherein the polyethylene composition has a density in the range of 0.907 to 0.975 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.62, a melt index (I2) in the range of 2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, and a vinyl unsaturation of less than 0.06 vinyls per one thousand carbon atoms present in the backbone of said composition. The injection molded articles according to the instant invention comprise a polyethylene composition comprising (1) less than or equal to 100 percent by weight of the units derived from ethylene; and (2) less than 15 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.907 to 0.975 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.62, a melt index (I2) in the range of 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 0.06 vinyls per one thousand carbon atoms present in the backbone of said composition. The process for making an injection molded article according to the instant invention comprises the steps of: (a) selecting a polyethylene composition comprising (1) less than or equal to 100 percent by weight of the units derived from ethylene; and (2) less than 15 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.907 to 0.975 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.62, a melt index (I2) in the range of 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 0.06 vinyls per one thousand carbon atoms present in the backbone of said composition; (b) injection molding said polyethylene composition; and (c) thereby forming the injection molded article.