发明名称 |
Polyethylene thick film and process for preparing polyethylene |
摘要 |
A thick film and process to prepare polyethylene useful for the film are disclosed. Ethylene is polymerized in two reaction zones with a C6-C10 α-olefin in the presence of a catalyst system comprising an activator, a supported bridged zirconium complex, and a supported non-bridged zirconium complex. The process yields medium density to linear low density polyethylene having a melt index from 0.20 to 1.0 dg/min. Thick films from the polyethylene have a superior combination of high impact strength and high modulus.
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申请公布号 |
US7816478(B2) |
申请公布日期 |
2010.10.19 |
申请号 |
US20080231458 |
申请日期 |
2008.09.03 |
申请人 |
EQUISTAR CHEMICALS, LP |
发明人 |
ETHERTON BRADLEY P.;IMFELD STEPHEN M.;SASTHAV MOHAN |
分类号 |
C08F210/14;C08F4/64;C08F4/76;C08F10/14 |
主分类号 |
C08F210/14 |
代理机构 |
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