Polyethylene compositions, method of producing the same, articles made therefrom, and method of making the same
    3.
    发明授权
    Polyethylene compositions, method of producing the same, articles made therefrom, and method of making the same 有权
    聚乙烯组合物,其制备方法,由其制成的制品及其制备方法

    公开(公告)号:US08481666B2

    公开(公告)日:2013-07-09

    申请号:US12663871

    申请日:2009-01-23

    IPC分类号: C08F10/02 C08F4/6592

    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。

    CONNECTION PIECE
    6.
    发明申请
    CONNECTION PIECE 审中-公开
    连接件

    公开(公告)号:US20110156383A1

    公开(公告)日:2011-06-30

    申请号:US12650223

    申请日:2009-12-30

    IPC分类号: F16L55/00

    CPC分类号: F16L37/091 F16L37/0925

    摘要: A connection piece (111) for a plug-in connection of a fluid-carrying system of lines for distributing drinking water within stories is formed without a supporting nipple. The connection piece (111) has in the region of an inner lateral surface of the first tubular part a first peripheral guiding surface (122) and a second peripheral guiding surface (117), arranged behind the first guiding surface (122) with respect to an insertion opening of the connection piece (111), for the second tubular part (160). A first axial extent of the first guiding surface (122) and a second axial extent of the second guiding surface (117) respectively make up each at least one sixth of an inside diameter of the first tubular part (112, 120). The connection piece (111) may form part of a fitting or a faucet and is suitable in particular for use with solid plastic pipes, for example of crosslinked polyethylene.

    摘要翻译: 形成用于在故障中分配饮用水的流体输送系统的插入式连接件的连接件(111),而没有支撑接头。 连接件(111)在第一管状部件的内侧表面的区域中具有相对于第一引导表面(122)布置在第一引导表面(122)的后面的第一外围引导表面(122)和第二外围引导表面(117) 用于第二管状部分(160)的连接件(111)的插入开口。 第一引导表面(122)的第一轴向范围和第二引导表面(117)的第二轴向范围分别构成第一管状部分(112,120)的内径的至少六分之一。 连接件(111)可以形成配件或水龙头的一部分,并且特别适用于固体塑料管,例如交联聚乙烯。

    POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, ARTICLES MADE THEREFROM, AND METHOD OF MAKING THE SAME

    公开(公告)号:US20100298508A1

    公开(公告)日:2010-11-25

    申请号:US12663871

    申请日:2009-01-23

    IPC分类号: C08F210/02 B29C45/00

    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.