POLYETHYLENE AND PROCESS FOR PRODUCTION THEREOF,申请号WO2011US56336-传众专利搜索

POLYETHYLENE AND PROCESS FOR PRODUCTION THEREOF

申请公布号：WO2012096698(A3)

申请号：WO2011US56336

申请日期：2011.10.14

申请公布日期：2012.09.20

申请人：

EXXONMOBIL CHEMICAL PATENTS INC.;CROWTHER, DONNA, J.;FISCUS, DAVID, M.

发明人：CROWTHER, DONNA, J.;FISCUS, DAVID, M.

分类号：C08F10/00;C08F4/06;C08F4/6592;C08F10/02;C08F210/16

主分类号：C08F10/00

摘要：This invention relates to a process for polymerizing olefins in which the amount of trimethylaluminum in a methylalumoxane solution is adjusted to be from 1 to 25 mol%, prior to use as an activator, where the mol% trimethylaluminum is determined by 1H NMR of the solution prior to combination with any support. This invention also relates to a process for polymerizing olefins in which the amount of an unknown species present in a methylalumoxane solution is adjusted to be from 0.10 to 0.65 integration units prior to use as an activator, where the amount of the unknown species is determined by the 1H NMR spectra of the solution performed prior to combination with any support. Preferably, the methylalumoxane solution is present in a catalyst system also comprising a metallocene transition metal compound.