公开(公告)号：US20130137828A1

公开(公告)日：2013-05-30

申请号：US13717247

申请日：2012-12-17

申请人： Dow Global Technologies LLC

发明人： William J. Michie, JR. ,  Dane Chang ,  Lonnie G. Hazlitt ,  Stephanie M. Whited ,  Michael A. Kinnan ,  Anthony G. Neubeuer ,  Thoi H. Ho

IPC分类号： C08L23/26

CPC分类号： C08L23/26 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2666/06

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 (CMv) 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支化的 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（计算出的Mv）相对于洗脱温度具有小于-0.0032的粘均分子量（CMv）系数，所述CMv计算在范围内 的洗脱温度从70℃至90℃.Mv是粘均分子量。

公开(公告)号：US08791205B2

公开(公告)日：2014-07-29

申请号：US13717247

申请日：2012-12-17

申请人： Dow Global Technologies LLC

发明人： William J. Michie, Jr. ,  Dane Chang ,  Lonnie G. Hazlitt ,  Stephanie M. Whited ,  Michael A. Kinnan ,  Anthony C. Neubauer ,  Thoi H. Ho

IPC分类号： C08F8/00 ,  C08L23/04

CPC分类号： C08L23/26 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2666/06

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 (CMv) 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（计算出的Mv）相对于洗脱温度具有小于-0.0032的粘均分子量（CMv）系数，所述CMv计算在范围内 的洗脱温度从70℃至90℃.Mv是粘均分子量。