发明名称 |
POLYETHYLENE COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED THEREFROM |
摘要 |
<p>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.</p> |
申请公布号 |
CA2667459(C) |
申请公布日期 |
2015.01.20 |
申请号 |
CA20072667459 |
申请日期 |
2007.10.19 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
MICHIE, WILLIAM J., JR.;CHANG, DANE;HAZLITT, LONNIE G.;WHITED, STEPHANIE M.;KINNAN, MICHAEL A.;NEUBAUER, ANTHONY C.;HO, THOI H. |
分类号 |
C08L23/00 |
主分类号 |
C08L23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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