发明名称 |
Polymerization processes using metallocene catalysts, their polymer products and end uses |
摘要 |
A process for the production of an ethylene alpha-olefin copolymer is disclosed, the process including polymerizing ethylene and at least one alpha-olefin by contacting the ethylene and the at least one alpha-olefin with a metallocene catalyst in at least one gas phase reactor at a reactor pressure of from 0.7 to 70 bar and a reactor temperature of from 20° C. to 150° C. to form an ethylene alpha-olefin copolymer. The resulting ethylene alpha-olefin copolymer may have a density D of 0.927 g/cc or less, a melt index (I2) of from 0.1 to 100 dg/min, a MWD of from 1.5 to 5.0. The resulting ethylene alpha-olefin copolymer may also have a peak melting temperature Tmax second melt satisfying the following relation: Tmax second melt>D*398−245.
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申请公布号 |
US8084560(B2) |
申请公布日期 |
2011.12.27 |
申请号 |
US20070810988 |
申请日期 |
2007.06.07 |
申请人 |
KOLB RAINER;AGAPIOU AGAPIOS K.;FARLEY JAMES M.;MARKEL ERIC J.;SAVATSKY BRUCE J.;DAVEY CHRISTOPHER R.;PANNELL RICHARD B.;UNIVATION TECHNOLOGIES, LLC |
发明人 |
KOLB RAINER;AGAPIOU AGAPIOS K.;FARLEY JAMES M.;MARKEL ERIC J.;SAVATSKY BRUCE J.;DAVEY CHRISTOPHER R.;PANNELL RICHARD B. |
分类号 |
C08F4/76;C08F4/64;C08F210/02 |
主分类号 |
C08F4/76 |
代理机构 |
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