公开(公告)号：US20180171040A1

公开(公告)日：2018-06-21

申请号：US15564397

申请日：2016-03-10

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Xuan YE ,  Matthew W. HOLTCAMP ,  Lubin LUO ,  Laughlin G. McCULLOUGH ,  Gregory S. DAY ,  Francis C. RIX ,  Jo Ann M. CANICH ,  David F. SANDERS ,  Matthew S. BEDOYA

IPC: C08F10/02

CPC classification number: C08F10/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65927 ,  C08F210/16 ,  C08F2420/02 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/18 ,  C08F4/65904 ,  C08F2500/05 ,  C08F2500/08

Abstract: This invention relates to a catalyst system comprising fluorided silica, alkylalumoxane activator and at least two metallocene catalyst compounds, where the first metallocene is a bridged monocyclopentadienyl group 4 transition metal compound and the second metallocene is a biscyclopentadientyl group 4 transition metal compound, where the fluorided support has not been calcined at a temperature of 400° C. or more, and is preferably produced using a west mixing method, such as an aqueous method.