发明名称 |
Process for Making Ethylene Interpolymers and Interpolymers Made Thereby, and Compositions and Electrical Devices Containing Such Interpolymers |
摘要 |
The invention relates to a continuous polymerization process for preparing a random ethylene interpolymer which comprises: (A) polymerizing ethylene, and an α-olefin comonomer selected from propylene and/or 1-butene, and mixtures thereof, under continuous random polymerization conditions in the presence of single site catalyst system employing an ionic activator having cyclic ligands shielding a central charge bearing atom, at a temperature of 140° C. to 250° C. at a conversion of ethylene of 80 to 99% and a comonomer conversion of from at least 20%; and (B) devolatilizing the polymer to provide an ethylene copolymer having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.01 to 100 g/10 min and an I21/I2 of from 30 to 400.
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申请公布号 |
US2013035460(A1) |
申请公布日期 |
2013.02.07 |
申请号 |
US201213568381 |
申请日期 |
2012.08.07 |
申请人 |
DHARMARAJAN NARAYANASWAMI R.;ZHAO RUI;HARRINGTON BRUCE ALLAN;PEHLERT GEORGE JAMES;RAVISHANKAR PERIAGARAM S.;CHASEY KENT L. |
发明人 |
DHARMARAJAN NARAYANASWAMI R.;ZHAO RUI;HARRINGTON BRUCE ALLAN;PEHLERT GEORGE JAMES;RAVISHANKAR PERIAGARAM S.;CHASEY KENT L. |
分类号 |
C08F210/02;C08F2/01;C08F4/44;C08F4/52;C08F4/76;C08F210/16 |
主分类号 |
C08F210/02 |
代理机构 |
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地址 |
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