Performance super high flow ethylene polymer compositions
    32.
    发明授权
    Performance super high flow ethylene polymer compositions 失效
    性能超高流量乙烯聚合物组合物

    公开(公告)号:US5346732A

    公开(公告)日:1994-09-13

    申请号:US924775

    申请日:1992-08-04

    IPC分类号: C08L23/06 C08L23/08 B29D22/00

    摘要: Super high flow ethylene polymer compositions comprising at least one linear ethylene polymer are disclosed which have improved processability for use in making thermally formed articles (e.g., thin-walled lids, cups and containers). The compositions have a processing index from about 0.005 KPoise to about 1 KPoise and are particularly useful in thermal forming processes having shear rates of at least 2,000 sec.sup.-1 (e.g., injection molding processes). The compositions can be used to make thin-walled lids and cups and have good environmental stress crack resistance and Gullwing Tear properties.

    摘要翻译: 公开了包含至少一种直链乙烯聚合物的超高流动乙烯聚合物组合物,其具有改进的加工性,用于制造热成型制品(例如,薄壁盖,杯和容器)。 组合物具有约0.005KPise至约1KPoise的加工指数,并且特别适用于剪切速率为至少2,000秒-1(例如注射成型工艺)的热成型工艺。 组合物可用于制备薄壁盖和杯,并具有良好的耐环境应力开裂性和鸥鸥撕裂性能。

    POLYETHYLENE COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED THEREFROM
    33.
    发明申请
    POLYETHYLENE COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED THEREFROM 有权
    聚乙烯组合物,其制备方法和制备的制品

    公开(公告)号:US20100003439A1

    公开(公告)日:2010-01-07

    申请号:US12446652

    申请日:2007-10-19

    摘要: The invention is related to compositions suitable for the fabrication of pipes, and other articles, with excellent performance properties. The invention provides a composition, comprising a blend, wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer, and the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, and the low molecular weight ethylene-based interpolymer is heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.940 g/cc to 0.955 g/cc, and a melt index (I2) from 6 g/10 min to 50 g/10 min. The blend has a single peak in an ATREF profile eluting above 30° C., and has a coefficient of viscosity average molecular weight (CM?) less than −0.0032 in the log(calculated Mv) versus elution temperature, said CMv calculated in the range of elution temperatures from 70° C. to 90° C. The Mv is the viscosity average molecular weight.

    摘要翻译: 本发明涉及适于制造具有优异性能的管道和其它制品的组合物。 本发明提供一种包含共混物的组合物,其中所述共混物包含高分子量乙烯基互聚物和低分子量乙烯基互聚物,并且高分子量乙烯基互聚物是非均匀支化的线性或均匀分支的 线性乙烯类互聚物,密度为0.922g / cc〜0.929g / cc,高负荷熔融指数(I21)为0.2g / 10min〜1.0g / 10min,低分子量乙烯 - 基于异构支化的线型或均匀支化的线性乙烯基互聚物,其密度为0.940g / cc至0.955g / cc,熔体指数(I 2)为6g / 10min至50g / 10min 。 共混物在30℃以上洗脱的ATREF谱中具有单峰,并且在对数(计算的Mv)相对于洗脱温度具有小于-0.0032的粘均分子量(CM 3)系数,所述CMv计算为 洗脱温度范围为70℃至90℃.Mv为粘均分子量。

    Performance super high flow ethylene polymer compositions
    35.
    发明授权
    Performance super high flow ethylene polymer compositions 失效
    性能超高流量乙烯聚合物组合物

    公开(公告)号:US5589128A

    公开(公告)日:1996-12-31

    申请号:US289978

    申请日:1994-08-12

    IPC分类号: C08L23/06 C08L23/08 B29B7/00

    摘要: Super high flow ethylene polymer compositions comprising at least one linear ethylene polymer are disclosed which have improved processability for use in making thermally formed articles (e.g., thin-walled lids, cups and containers). The compositions have a processing index from about 0.005 KPoise to about 1 KPoise and are particularly useful in thermal forming processes having shear rates of at least 2,000 sec.sup.-1 (e.g., injection molding processes). The compositions can be used to make thin-walled lids and cups and have good environmental stress crack resistance and Gullwing Tear properties.

    摘要翻译: 公开了包含至少一种直链乙烯聚合物的超高流动乙烯聚合物组合物,其具有改进的加工性,用于制造热成型制品(例如,薄壁盖,杯和容器)。 组合物具有约0.005KPise至约1KPoise的加工指数,并且特别适用于剪切速率为至少2,000秒-1(例如注射成型工艺)的热成型工艺。 组合物可用于制备薄壁盖和杯,并具有良好的耐环境应力开裂性和鸥鸥撕裂性能。

    Polyethylene films exhibiting low blocking force
    36.
    发明授权
    Polyethylene films exhibiting low blocking force 失效
    聚乙烯薄膜显示出低的阻塞力

    公开(公告)号:US5370940A

    公开(公告)日:1994-12-06

    申请号:US092346

    申请日:1993-07-15

    摘要: Film having good blocking properties and low coefficient of friction is prepared without the presence of antiblock additives from certain thermoplastic ethylene interpolymer products. The thermoplastic ethylene interpolymer products have a density of about 0,935 g/ml or less, a melt flow ratio, I.sub.10/ I.sub.2, of at least about 8, and at least about 0.5 percent by weight of the interpolymer product has a weight average molecular weight of at least about 1,000,000 grams/mole. The interpolymer products are a blend or composite of ethylene polymers or copolymers and comprise at least a first interpolymer of ethylene with at least one alpha-olefin monomer. Preferably, the interpolymer products have a melt index, I.sub.2, of from about 0.1 to about 4 grams/10 minutes. The interpolymer products can be made using discrete polymer blends, or preferably, in a multiple reactor sequence. Blown film made from the interpolymer products is especially useful in grocery sack applications.

    摘要翻译: 制备具有良好阻隔性能和低摩擦系数的膜,而不存在来自某些热塑性乙烯互聚物产物的防粘剂添加剂。 热塑性乙烯互聚物产物的密度为约935g / ml或更低,熔体流动比I10 / I2为至少约8重量%,至少约0.5重量%的互聚物产物具有重均分子量 至少约1,000,000克/摩尔。 互聚物产物是乙烯聚合物或共聚物的共混物或复合物,并且包含至少一种乙烯与至少一种α-烯烃单体的第一互聚物。 优选地,互聚物产物的熔体指数I 2为约0.1至约4克/ 10分钟。 互聚物产物可以使用离散聚合物共混物制备,或者优选在多反应器序列中制备。 由互聚物产品制成的吹膜在杂货袋应用中特别有用。

    Polyethylene films exhibiting low blocking force
    37.
    发明授权
    Polyethylene films exhibiting low blocking force 失效
    聚乙烯薄膜显示出低的阻塞力

    公开(公告)号:US5250612A

    公开(公告)日:1993-10-05

    申请号:US773375

    申请日:1991-10-07

    摘要: Film having good blocking properties and low coefficient of friction is prepared without the presence of antiblock additives from certain thermoplastic ethylene interpolymer products. The thermoplastic ethylene interpolymer products have a density of about 0.935 g/ml or less, a melt flow ratio. I.sub.10 I.sub.2, of at least about 8, and at least about 0.5 percent by weight of the interpolymer product has a weight average molecular weight of at least about 1,000,000 grams/mole. The interpolymer products are a blend or composite of ethylene polymers or copolymers and comprise at least a first interpolymer of ethylene with at least one alpha-olefin monomer. Preferably, the interpolymer products have a melt index, I.sub.2, of from about 0.1 to about 4 grams/10 minutes. The interpolymer products can be made using discrete polymer blends, or preferably, in a multiple reactor sequence. Blown film made from the interpolymer products is especially useful in grocery sack applications.

    摘要翻译: 制备具有良好阻隔性能和低摩擦系数的膜,而不存在来自某些热塑性乙烯互聚物产物的防粘剂添加剂。 热塑性乙烯互聚物产物的密度为约0.935g / ml或更小,熔体流动比。 至少约8重量%,至少约0.5重量%的互聚物产物的重均分子量至少约为1,000,000克/摩尔。 互聚物产物是乙烯聚合物或共聚物的共混物或复合物,并且包含至少一种乙烯与至少一种α-烯烃单体的第一互聚物。 优选地,互聚物产物的熔体指数I 2为约0.1至约4克/ 10分钟。 互聚物产物可以使用离散聚合物共混物制备,或者优选在多反应器序列中制备。 由互聚物产品制成的吹膜在杂货袋应用中特别有用。

    Ethylene/alpha-olefin interpolymer suitable for use in shrinkage film applications, and articles made therefrom
    38.
    发明授权
    Ethylene/alpha-olefin interpolymer suitable for use in shrinkage film applications, and articles made therefrom 有权
    适用于收缩膜应用的乙烯/α-烯烃互聚物及由其制成的制品

    公开(公告)号:US08921500B2

    公开(公告)日:2014-12-30

    申请号:US13816665

    申请日:2010-09-29

    IPC分类号: C08F4/42 C08F110/14

    摘要: The instant invention provides an ethylene/alpha-olefin interpolymer suitable for use in shrinkage film applications, and articles 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 0.920 to 0.940 g/cm3.

    摘要翻译: 本发明提供了适用于收缩膜应用的乙烯/α-烯烃互聚物和由其制成的制品。 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 该分数中的聚合物除以在95℃和100℃之间洗脱的聚合物的重均分子量,其中乙烯/α-烯烃互聚物的密度在0.920至0.940g / cm3的范围内。

    Polyethylene compositions, methods of making the same, and articles prepared therefrom
    40.
    发明授权
    Polyethylene compositions, methods of making the same, and articles prepared therefrom 有权
    聚乙烯组合物,其制备方法和由其制备的制品

    公开(公告)号:US08344068B2

    公开(公告)日:2013-01-01

    申请号:US12446652

    申请日:2007-10-19

    IPC分类号: C08F8/00 C08L23/04

    摘要: The invention is related to compositions suitable for the fabrication of pipes, and other articles, with excellent performance properties. The invention provides a composition, comprising a blend, wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer, and the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, and the low molecular weight ethylene-based interpolymer is heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.940 g/cc to 0.955 g/cc, and a melt index (I2) from 6 g/10 min to 50 g/10 min. The blend has a single peak in an ATREF profile eluting above 30° C., and has a coefficient of viscosity average molecular weight (CM?) less than −0.0032 in the log(calculated Mv) versus elution temperature, said CMv calculated in the range of elution temperatures from 70° C. to 90° C. The Mv is the viscosity average molecular weight.

    摘要翻译: 本发明涉及适于制造具有优异性能的管道和其它制品的组合物。 本发明提供一种包含共混物的组合物,其中所述共混物包含高分子量乙烯基互聚物和低分子量乙烯基互聚物,并且高分子量乙烯基互聚物是非均匀支化的线性或均匀分支的 线性乙烯类互聚物,密度为0.922g / cc〜0.929g / cc,高负荷熔融指数(I21)为0.2g / 10min〜1.0g / 10min,低分子量乙烯 - 基于异构支化的线型或均匀支化的线性乙烯基互聚物,其密度为0.940g / cc至0.955g / cc,熔体指数(I 2)为6g / 10min至50g / 10min 。 共混物在30℃以上洗脱的ATREF谱中具有单峰,并且在对数(计算的Mv)相对于洗脱温度具有小于-0.0032的粘均分子量(CM 3)系数,所述CMv计算为 洗脱温度范围为70℃至90℃.Mv为粘均分子量。