发明名称 |
IMPROVED 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 meit satisfying the following relation: Tmax second melt > D*398-245. |
申请公布号 |
KR20090034918(A) |
申请公布日期 |
2009.04.08 |
申请号 |
KR20097001691 |
申请日期 |
2007.06.05 |
申请人 |
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 |
C08F210/16;C08F4/64;C08J5/18;C08L23/08 |
主分类号 |
C08F210/16 |
代理机构 |
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代理人 |
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地址 |
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