Polyolefin composition
    12.
    发明授权
    Polyolefin composition 有权
    聚烯烃组合物

    公开(公告)号:US09115275B2

    公开(公告)日:2015-08-25

    申请号:US14141835

    申请日:2013-12-27

    Abstract: The instant invention provides a polyolefin composition suitable for packaging applications, films, multilayer structures and packaging devices made therefrom. The polyolefin composition according to the present invention comprises: an ethylene/α-olefin interpolymer composition comprising (a) from 50 to 75 percent by weight of a first ethylene/α-olefin copolymer fraction having a density in the range of 0.894 to 0.908 g/cm3, a melt index (I2) in the range of from 0.2 to 1 g/10 minutes, and (b) from 25 to 50 percent by weight of a second ethylene/α-olefin copolymer fraction, and wherein said ethylene/α-olefin interpolymer composition has a density in the range of 0.910 to 0.924 g/cm3, a melt index (I2) in the range of from 0.5 to 2 g/10 minutes, a zero shear viscosity ratio (ZSVR) in the range of from 1.15 to 2.5, a molecular weight distribution, expressed as the ratio of the weight average molecular weight to number average molecular weight (Mw/Mn) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second and 190° C. in the range of from 6 to 43.

    Abstract translation: 本发明提供一种适用于包装应用,薄膜,多层结构和由其制成的包装装置的聚烯烃组合物。 根据本发明的聚烯烃组合物包含:乙烯/α-烯烃互聚物组合物,其包含(a)50至75重量%的密度在0.894至0.908g范围内的第一乙烯/α-烯烃共聚物部分 / cm 3,熔体指数(I 2)在0.2〜1g / 10分钟的范围内,和(b)25〜50重量%的第二乙烯/α-烯烃共聚物部分,其中所述乙烯/ α-烯烃互聚物组合物的密度范围为0.910〜0.924g / cm3,熔体指数(I2)为0.5〜2g / 10分钟,零剪切粘度比(ZSVR)为 1.15至2.5,分子量分布表示为重均分子量与数均分子量(Mw / Mn)的比值在2.0至4.0的范围内,tanδ在0.1弧度/秒和190℃ 在6到43的范围内。

    Polyolefin composition
    13.
    发明授权
    Polyolefin composition 有权
    聚烯烃组合物

    公开(公告)号:US09102819B2

    公开(公告)日:2015-08-11

    申请号:US14142014

    申请日:2013-12-27

    Abstract: The instant invention provides a polyolefin composition suitable for injection molding applications, and method of making such injection molded articles. The polyolefin composition suitable for injection molding applications comprises: an ethylene/α-olefin interpolymer composition comprising: (a) from 25 to 50 percent by weight of a first ethylene/α-olefin copolymer fraction having a density in the range of from 0.924 to 0.937 g/cm3, a melt index (I2) in the range of from 0.03 to 0.3 g/10 min, (b) from 50 to 75 percent by weight of a second ethylene homopolymer fraction having a density in the range of from greater than 0.960 g/cm3, a melt index (I2) in the range of from 100 to 180 g/10 minutes, wherein said ethylene/α-olefin interpolymer composition has a density in the range of from 0.950 to 0.958 g/cm3, a melt index (I2) in the range of from 1.0 g/10 min to 3.5 g/10 min, a zero shear viscosity ratio (ZSVR) in the range of from 1.01 to 2.5, a molecular weight distribution (Mw/Mn) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second and 190° C. in the range of from 9 to 50.

    Abstract translation: 本发明提供了适用于注塑应用的聚烯烃组合物,以及制备这种注模制品的方法。 适用于注塑应用的聚烯烃组合物包括:乙烯/α-烯烃互聚物组合物,其包含:(a)25至50重量%的第一乙烯/α-烯烃共聚物部分,其密度范围为0.924至 0.937g / cm 3,熔体指数(I 2)在0.03至0.3g / 10min的范围内,(b)50至75重量%的第二乙烯均聚物部分,其密度在大于 0.960g / cm 3,熔体指数(I 2)在100至180g / 10分钟的范围内,其中所述乙烯/α-烯烃互聚物组合物的密度范围为0.950至0.958g / cm 3,熔体 指数(I 2)在1.0g / 10min至3.5g / 10min的范围内,零剪切粘度比(ZSVR)在1.01至2.5范围内,分子量分布(Mw / Mn)在该范围内 为2.0〜4.0,tanδ为0.1弧度/秒,190℃为9〜50。

    POLYOLEFIN COMPOSITION
    14.
    发明申请
    POLYOLEFIN COMPOSITION 有权
    聚烯烃组合物

    公开(公告)号:US20150148491A1

    公开(公告)日:2015-05-28

    申请号:US14142014

    申请日:2013-12-27

    Abstract: The instant invention provides a polyolefin composition suitable for injection molding applications, and method of making such injection molded articles. The polyolefin composition suitable for injection molding applications comprises: an ethylene/α-olefin interpolymer composition comprising: (a) from 25 to 50 percent by weight of a first ethylene/α-olefin copolymer fraction having a density in the range of from 0.924 to 0.937 g/cm3, a melt index (I2) in the range of from 0.03 to 0.3 g/10 min, (b) from 50 to 75 percent by weight of a second ethylene homopolymer fraction having a density in the range of from greater than 0.960 g/cm3, a melt index (I2) in the range of from 100 to 180 g/10 minutes, wherein said ethylene/α-olefin interpolymer composition has a density in the range of from 0.950 to 0.958 g/cm3, a melt index (I2) in the range of from 1.0 g/10 min to 3.5 g/10 min, a zero shear viscosity ratio (ZSVR) in the range of from 1.01 to 2.5, a molecular weight distribution (Mw/Mn) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second and 190° C. in the range of from 9 to 50.

    Abstract translation: 本发明提供了适用于注塑应用的聚烯烃组合物,以及制备这种注模制品的方法。 适用于注塑应用的聚烯烃组合物包括:乙烯/α-烯烃互聚物组合物,其包含:(a)25至50重量%的第一乙烯/α-烯烃共聚物部分,其密度范围为0.924至 0.937g / cm 3,熔体指数(I 2)在0.03至0.3g / 10min的范围内,(b)50至75重量%的第二乙烯均聚物部分,其密度在大于 0.960g / cm 3,熔体指数(I 2)在100至180g / 10分钟的范围内,其中所述乙烯/α-烯烃互聚物组合物的密度范围为0.950至0.958g / cm 3,熔体 指数(I 2)在1.0g / 10min至3.5g / 10min的范围内,零剪切粘度比(ZSVR)在1.01至2.5范围内,分子量分布(Mw / Mn)在该范围内 为2.0〜4.0,tanδ为0.1弧度/秒,190℃为9〜50。

    MULTIMODAL ETHYLENE-BASED COPOLYMER COMPOSITIONS AND PROCESSES OF PRODUCING

    公开(公告)号:US20250109217A1

    公开(公告)日:2025-04-03

    申请号:US18725529

    申请日:2022-12-29

    Abstract: Embodiments of this disclosure includes processes of polymerizing a multi-modal polyethylene polymer. The process includes contacting ethylene and optionally one or more α-olefin monomers with at least two catalyst systems in a solution reactor at a reactor temperature of greater than 150° C. The at least two catalyst systems produce a vinyl end group count per 1000 carbon atoms is greater than 0.3. A first catalyst system of the at least two catalyst systems includes a first procatalyst; and a second catalyst system of the at least two catalyst systems comprises a second procatalyst having a reactivity ratio of less than 20, wherein the reactivity ratio of the first procatalyst is measured in a single reactor with only the first catalyst system in the presence of 1250 grams of ISOPAR-E, with a mol fraction of ethylene in solution of 0.709, and at a reactor temperature of at least 150° C.

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