CATALIZADORES DE POLIMERIZACION PARA PRODUCIR POLIMEROS CON BAJOS NIVELES DE RAMIFICACION DE CADENA LARGA.
摘要
This invention relates to catalyst compositions, methods, and polymers encompassing at least one Group 4 metallocene compound comprising bridging eta5-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 low levels of long chain branching.
申请公布号
ES2385938(T3)
申请公布日期
2012.08.03
申请号
ES20070759695T
申请日期
2007.03.29
申请人
CHEVRON PHILLIPS CHEMICAL COMPANY LP
发明人
YANG, QING;MCDANIEL, MAX;JENSEN, MICHAEL;THORN, MATTHEW;MARTIN, JOEL;YU, YOULU;ROHLFING, DAVID