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    • 1. 发明申请
    • HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF MAKING THE SAME, ARTICLES MADE THEREFROM, AND METHOD OF MAKING SUCH ARTICLES
    • 高密度聚乙烯组合物,其制备方法,制备方法和制备这些制品的方法
    • WO2007130515A3
    • 2008-03-13
    • PCT/US2007010735
    • 2007-05-02
    • DOW GLOBAL TECHNOLOGIES INCMICHIE WILLIAM JKAY THOMAS WWHITED STEPHANIE MELLEY-BRISTOW DALE MGILLESPIE DAVID THAZLITT LONNIE G
    • MICHIE WILLIAM JKAY THOMAS WWHITED STEPHANIE MELLEY-BRISTOW DALE MGILLESPIE DAVID THAZLITT LONNIE G
    • C08L23/04B65D41/00H01B3/44
    • C08L23/08C08L23/04C08L23/06C08L23/0815C08L2203/10Y10T428/24992Y10T428/273C08L2666/06
    • The instant invention is a high-density polyethylene composition, method of producing the same, articles made therefrom, and method of making such articles. The high- density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g/cm 3 , and a melt index (I 21.6 ) in the range of 0.5 to 10 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm 3 , and a melt index (I2) in the range of 50 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I2) of at least 1, a density in the range of (I2) in the range of 0, 950 to 0,960g/cm 3 , and g' of equal or greater than 1. The method of producing a high-density polyethylene composition includes the following steps: (1) introducing ethylene, and one or more alpha-olefin comonomers into a first reactor; (2) (co)polymerizing the ethylene in the presence of one or more alpha-olefin comonomers in the first reactor thereby producing a first component, wherein the first component being a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g/cm 3 , and a melt index (I 21.6 ) in the range of 0.5 to 10 g/10 minutes; (3) introducing the first component and additional ethylene into a second reactor; (4) polymerizing the additional ethylene in the second reactor thereby producing a second component, wherein the second component being a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm 3 , and a melt index (I 2 ) in the range of 50 to 1500 g/10 minutes; and (5) thereby producing the high-density polyethylene composition, wherein the high-density polyethylene composition having a melt index (I 2 ) of at least 1, a density in the range of 0.950 to 0.960 g/cm 3 , and g' of equal or greater than 1. The articles according to instant invention comprise the above-described inventive high-density polyethylene composition, and such articles may be made via compression molding, injection molding, or injection blow molding.
    • 本发明是高密度聚乙烯组合物,其制造方法,由其制成的制品及其制造方法。 本发明的高密度聚乙烯组合物包括第一组分和第二组分。 第一组分是密度在0.915至0.940g / cm 3范围内的高分子量乙烯α-烯烃共聚物,熔体指数(I 21.6) 在0.5〜10g / 10分钟的范围内。 第二组分是密度在0.965至0.980g / cm 3范围内的低分子量乙烯聚合物,熔体指数(I 2)在50至1500g / 10分钟的范围内 。 高密度聚乙烯组合物的熔体指数(I 2)至少为1,在(I2)范围内的密度在0,950至0.96g / cm 3的范围内,g 等于或大于1.制备高密度聚乙烯组合物的方法包括以下步骤:(1)将乙烯和一种或多种α-烯烃共聚单体引入第一反应器; (2)(共)在第一反应器中在一种或多种α-烯烃共聚单体存在下聚合乙烯,从而产生第一组分,其中第一组分是密度在该范围内的高分子量乙烯α-烯烃共聚物 为0.915〜0.940g / cm 3,熔体指数(I <21.6℃)为0.5〜10g / 10分钟; (3)将第一组分和另外的乙烯引入第二反应器中; (4)在第二反应器中聚合另外的乙烯,从而产生第二组分,其中第二组分是密度在0.965至0.980g / cm 3范围内的低分子量乙烯聚合物, 和熔体指数(I 2 H 2)在50至1500g / 10分钟的范围内; 和(5),从而制备高密度聚乙烯组合物,其中熔体指数(I 2/2)至少为1的密度为0.950-0.960g的高密度聚乙烯组合物 / cm 3,g'等于或大于1.本发明的制品包含上述本发明的高密度聚乙烯组合物,并且这些制品可以通过压塑,注射 成型或注射吹塑。
    • 2. 发明申请
    • HIGH-DENSITY POLYETHYLENE COMPOSITIONS AND METHOD OF MAKING THE SAME
    • 高密度聚乙烯组合物及其制备方法
    • WO2007140114A3
    • 2008-04-10
    • PCT/US2007068952
    • 2007-05-15
    • DOW GLOBAL TECHNOLOGIES INCMICHIE WILLIAM JWILSON DEBRA RWHITED STEPHANIE MKINNAN MICHAEL A
    • MICHIE WILLIAM JWILSON DEBRA RWHITED STEPHANIE MKINNAN MICHAEL A
    • C08F210/16B29C45/00
    • C08F210/16B29C45/0001B29K2023/065C08F210/14C08F2500/07C08F2500/12C08F2500/03C08F2500/20C08F2500/10
    • The instant invention is a high-density polyethylene composition, method of making the same, and articles made therefrom. The high-density polyethylene composition of the instant invention includes an ethylene alpha-olefin copolymer having a density in the range of 0.935 to 0.952 g/cm 3 , a melt index (I 2 ) in the range of 30 to 75 g/10 minutes, an I 21 / I 2 ratio in the range of 13-35, a M w /M n ratio in the range of 3.5-8. The high-density polyethylene composition has a brittleness temperature of at least less than -20 °C. The process for producing a high-density polyethylene composition according to instant invention includes the following steps: (1) introducing ethylene, and one or more alpha-olefin comonomers into a reactor; (2) (co)polymerizing the ethylene in the presence of the one or more alpha-olefin comonomers in the reactor; and (3) thereby producing the high-density polyethylene composition, wherein the high- density polyethylene composition having a density in the range of 0.935 to 0.952 g/cm 3 , a melt index (I2) in the range of 30 to 75 g/10 minutes, an I 21 / I 2 ratio in the range of 13-35, a M w /M n ratio in the range of 3.5-8, and a brittleness temperature of at least less than -20 "C. Articles according to the instant invention include the inventive high-density polyethylene composition.
    • 本发明是高密度聚乙烯组合物,其制造方法和由其制成的制品。 本发明的高密度聚乙烯组合物包括密度在0.935至0.952g / cm 3范围内的乙烯α-烯烃共聚物,熔体指数(I 2) SUB>)在30至75g / 10分钟的范围内,在13-35的范围内的I 2/21 / I 2比值,M W / M 比在3.5-8的范围内。 高密度聚乙烯组合物的脆性温度至少低于-20℃。 根据本发明的高密度聚乙烯组合物的制造方法包括以下步骤:(1)将乙烯和一种或多种α-烯烃共聚单体引入反应器中; (2)在反应器中在一种或多种α-烯烃共聚单体存在下共聚合乙烯; 和(3),由此制备高密度聚乙烯组合物,其中密度在0.935至0.952g / cm 3范围内的高密度聚乙烯组合物,其中熔体指数(I 2)在 范围为30至75g / 10分钟,13-35℃范围内的1/2/2/2比值为1 / 在3.5-8范围内的摩尔比,脆性温度至少低于-20℃。根据本发明的制品包括本发明的高密度聚乙烯组合物。
    • 5. 发明专利
    • BRPI0711215A2
    • 2011-08-23
    • BRPI0711215
    • 2007-05-15
    • DOW GLOBAL TECHNOLOGIES INC
    • MICHIE WILLIAM JWILSON DEBRA RWHITED STEPHANIE MKINNAN MICHAEL
    • C08F210/16B29C45/00
    • The instant invention is a high-density polyethylene composition, and method of making the same. The high-density polyethylene composition of the instant invention includes an ethylene alpha-olefin copolymer having a density in the range of 0.935 to 0.952 g/cm3, a melt index (I2) in the range of 30 to 75 g/10 minutes, an I21/I2 ratio in the range of 13-35, a Mw/Mn ratio in the range of 3.5-8. The high-density polyethylene composition has a brittleness temperature of at least less than -20° C. The process for producing a high-density polyethylene composition according to instant invention includes the following steps: (1) introducing ethylene, and an alpha-olefin comonomer into a reactor; (2) copolymerizing the ethylene with the alpha-olefin comonomer in the reactor; and (3) thereby producing the high-density polyethylene composition, wherein the high-density polyethylene composition having a density in the range of 0.935 to 0.952 g/cm3, a melt index (I2) in the range of 30 to 75 g/10 minutes, an I21/I2 ratio in the range of 13-35, a Mw/Mn ratio in the range of 3.5-8, and a brittleness temperature of at least less than -20° C.
    • 9. 发明专利
    • COMPOSICIONES DE POLIETILENO DE ALTA DENSIDAD Y METODO PARA ELABORARLAS.
    • MX2008014834A
    • 2009-01-30
    • MX2008014834
    • 2007-05-15
    • DOW GLOBAL TECHNOLOGIES INC
    • MICHIE WILLIAM JWILSON DEBRA RKINNAN MICHAEL AWHITED STEPHANIE M
    • C08F210/16B29C45/00
    • La presente invención es una composición de polietileno de alta densidad, un método para elaborarla, y artículos elaborados a partir de ella. La composición de polietileno de alta densidad de la presente invención incluye un copolímero de etileno y alfa-olefina que tiene una densidad en el rango desde 0.935 hasta 0.952 g/cm3, un índice de fusión (12) en el rango desde 20 hasta 75 g/10 minutos, y una proporción de I21/I2 en el rango de 13-35, una proporción de PM/PN en el rango de 3.5-8. La composición de polietileno de alta densidad tiene una temperatura de fragilidad al menos menor que -20 ºC. El proceso para producir una composición de polietileno de alta densidad de acuerdo con la presente invención incluye los siguientes pasos: (1) introducir etileno, y uno o más comonómeros de alfa-olefina en un reactor; (2) (co)polimerizar el etileno en la presencia del uno o más comonómeros de alfa-olefina en el reactor; y (3) producir de esta forma la composición de polietileno de alta densidad, en donde la composición polietileno de alta densidad tiene una densidad en el rango desde 0.935 hasta 0.952 g/cm3, un índice de fusión (12) en el rango de 30 a 75 g/10 minutos, una proporción I21/I2 en el rango de 13-35, una proporción de PM/PN en el rango de 3.5-8 y una temperatura de fragilidad al menos menor que -20 ºC. Los artículos de acuerdo con la presente invención incluyen la composición de polietileno de alta densidad de la invención.