| 摘要 |
<p>This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging ?<SUP>5</SUP>-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging ?<SUP>5</SUP>-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.</p> |
| 申请人 |
CHEVRON PHILLIPS CHEMICAL COMPANY LP;YANG, QING;JAYARATNE, KUMUDINI C.;JENSEN, MICHAEL D;MCDANIEL, MAX P.;MARTIN, JOEL L.;THORN, MATTHEW G.;LANIER, JERRY T.;CRAIN, TONY R. |
发明人 |
YANG, QING;JAYARATNE, KUMUDINI C.;JENSEN, MICHAEL D;MCDANIEL, MAX P.;MARTIN, JOEL L.;THORN, MATTHEW G.;LANIER, JERRY T.;CRAIN, TONY R. |
