Narrow MWD, compositionally optimized ethylene interpolymer composition, process for making the same and article made therefrom
    22.
    发明授权
    Narrow MWD, compositionally optimized ethylene interpolymer composition, process for making the same and article made therefrom 有权
    窄MWD,组分优化的乙烯互聚物组合物,其制备方法和由其制备的制品

    公开(公告)号:US06683149B2

    公开(公告)日:2004-01-27

    申请号:US10247025

    申请日:2002-09-19

    IPC分类号: C08F11002

    摘要: The present invention pertains to an ethylene interpolymer composition characterized as having a narrow molecular weight distribution (MWD) and optimized compositional uniformity, a process for making such a composition and a fabricated article made from such composition. The novel composition is characterized as having at least two polymer components, the first component having an ATREF peak temperature, Tpeak1 and a viscosity average molecular weight, Mv1, and the second component having an ATREF peak temperature, Tpeak2, and a viscosity average molecular, Mv2, wherein the temperature differential between Tpeak2 and Tpeak1 decreases with iincreased composition density and Mv1/Mv2 is less than or equal to 1.2. The novel composition exhibits high, balanced toughness properties, good processibility and surprisingly improved optical properties and is particularly well-suited for use in applications such as lamination films trash can liners and heavy duty shipping bags, especially as a blown film.

    摘要翻译: 本发明涉及具有窄分子量分布(MWD)和优化组合均匀性的乙烯互聚物组合物,制备这种组合物的方法和由这种组合物制成的制造制品。 该新型组合物的特征在于具有至少两种聚合物组分,第一组分具有ATREF峰温度,Tpeak1和粘均分子量Mv1,第二组分具有ATREF峰温度Tpeak2和粘均分子, Mv2,其中Tpeak2和Tpeak1之间的温差随着组合物浓度的增加而降低,Mv1 / Mv2小于或等于1.2。 该新型组合物显示出高的平衡的韧性,良好的加工性和令人惊奇的改进的光学性能,特别适用于诸如层压膜垃圾桶衬里和重型运输袋,特别是作为吹塑薄膜的应用。

    Ethylene/alpha-olefin interpolymer suitable for use in fiber applications, and fibers made therefrom
    25.
    发明授权
    Ethylene/alpha-olefin interpolymer suitable for use in fiber applications, and fibers made therefrom 有权
    适用于纤维应用的乙烯/α-烯烃互聚物和由其制成的纤维

    公开(公告)号:US08907030B2

    公开(公告)日:2014-12-09

    申请号:US13820795

    申请日:2010-09-29

    IPC分类号: C08F210/16 C08F10/00 D01F6/30

    摘要: The instant invention provides an ethylene/alpha-olefin interpolymer suitable for use in fiber applications, and fibers made therefrom. The ethylene/alpha-olefin interpolymer according to the present invention has a CDBI of less than 60%, and comprises at least two fractions in crossfractionation of the ethylene/alpha-olefin interpolymer, eluting from 85° C. to 90° C. and from 90° C. to 95° C., comprising a weight fraction ratio of >0.68 and a molecular weight homogeneity index of greater than 0.65; wherein the weight fraction ratio is the ratio of the weight of polymer in each fraction divided by the weight of polymer eluting between 95° C. and 100° C. and the molecular weight homogeneity index is the ratio of the weight average molecular weight of the polymer in the fraction divided by the weight average molecular weight of the polymer eluting between 95° C. and 100° C., and wherein the ethylene/alpha-olefin interpolymer has a density in the range of from 0.920 to 0.965 g/cm3, and a melt index (I2) in the range of from 0.5 to 100 g/10 minutes, and melt flow ratio (I10/I2) in the range of from 5.8 to 8.

    摘要翻译: 本发明提供了适用于纤维应用的乙烯/α-烯烃互聚物和由其制成的纤维。 根据本发明的乙烯/α-烯烃互聚物的CDBI小于60%,并且在85℃至90℃下从乙烯/α-烯烃互聚物的交叉分级中至少包含两个馏分, 包括重量分数比> 0.68且分子量均匀度指数大于0.65的90℃至95℃; 其中重量分数比是每个级分中聚合物的重量比除以95℃和100℃之间洗脱的聚合物的重量的比例,分子量均匀度指数是重均分子量 所述级分中的聚合物除以在95℃和100℃之间洗脱的聚合物的重均分子量,并且其中所述乙烯/α-烯烃互聚物的密度在0.920至0.965g / cm 3的范围内, 熔体指数(I 2)为0.5-100g / 10分钟,熔体流动比(I10 / I2)为5.8-8。

    ETHYLENE/ALPHA-OLEFIN INTERPOLYMER SUITABLE FOR USE IN FIBER APPLICATIONS, AND FIBERS MADE THEREFROM
    26.
    发明申请
    ETHYLENE/ALPHA-OLEFIN INTERPOLYMER SUITABLE FOR USE IN FIBER APPLICATIONS, AND FIBERS MADE THEREFROM 有权
    适用于光纤应用的乙烯/丙烯酰胺嵌段共聚物及其制备的纤维

    公开(公告)号:US20130190465A1

    公开(公告)日:2013-07-25

    申请号:US13820795

    申请日:2010-09-29

    IPC分类号: C08F210/16

    摘要: The instant invention provides an ethylene/alpha-olefin interpolymer suitable for use in fiber applications, and fibers made therefrom. The ethylene/alpha-olefin interpolymer according to the present invention has a CDBI of less than 60%, and comprises at least two fractions in crossfractionation of the ethylene/alpha-olefin interpolymer, eluting from 85° C. to 90° C. and from 90° C. to 95° C., comprising a weight fraction ratio of >0.68 and a molecular weight homogeneity index of greater than 0.65; wherein the weight fraction ratio is the ratio of the weight of polymer in each fraction divided by the weight of polymer eluting between 95° C. and 100° C. and the molecular weight homogeneity index is the ratio of the weight average molecular weight of the polymer in the fraction divided by the weight average molecular weight of the polymer eluting between 95° C. and 100° C., and wherein the ethylene/alpha-olefin interpolymer has a density in the range of from 0.920 to 0.965 g/cm3, and a melt index (I2) in the range of from 0.5 to 100 g/10 minutes, and melt flow ratio (I10/I2) in the range of from 5.8 to 8.

    摘要翻译: 本发明提供了适用于纤维应用的乙烯/α-烯烃互聚物和由其制成的纤维。 根据本发明的乙烯/α-烯烃互聚物的CDBI小于60%,并且在85℃至90℃下从乙烯/α-烯烃互聚物的交叉分级中至少包含两个馏分, 包括重量分数比> 0.68且分子量均匀度指数大于0.65的90℃至95℃; 其中重量分数比是每个级分中聚合物的重量比除以95℃和100℃之间洗脱的聚合物的重量的比例,分子量均匀度指数是重均分子量 所述级分中的聚合物除以在95℃和100℃之间洗脱的聚合物的重均分子量,并且其中所述乙烯/α-烯烃互聚物的密度在0.920至0.965g / cm 3的范围内, 熔体指数(I 2)为0.5-100g / 10分钟,熔体流动比(I10 / I2)为5.8-8。

    High-Density Polyethylene Compositions, Method of Making the Same, Articles Made Therefrom, and Method of Making Such Articles

    公开(公告)号:US20080221273A1

    公开(公告)日:2008-09-11

    申请号:US12067832

    申请日:2007-05-02

    摘要: The instant invention is a high-density polyethylene compositions, and method of making the same. 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/cm3, and a melt index (I21) 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/cm3, 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 0.950 to 0.960 g/cm3, and g′ of equal or greater than 1. The method of producing a high-density polyethylene composition include the following steps: (1) introducing ethylene, and an alpha-olefin comonomer into a first reactor; (2) copolymerizing the ethylene with the alpha-olefin comonomer 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/cm3, and a melt index (I21) 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/cm3, and a melt index (I2) 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 (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3, and g′ of equal or greater than 1.