[EN] TWO ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONORS IN CATALYSTS FOR POLYPROPYLENE MANUFACTURE<br/>[FR] COMPOSÉS DICARBONATES PONTÉS PAR DEUX ATOMES, COMME DONNEURS INTERNES DANS DES CATALYSEURS POUR LA FABRICATION DE POLYPROPYLÈNE
申请人:DOW GLOBAL TECHNOLOGIES INC
公开号:WO2011068770A1
公开(公告)日:2011-06-09
A solid, hydrocarbon-insoluble, catalyst component useful in polymerizing olefins, said catalyst component containing magnesium, titanium, and halogen, and further containing an internal electron donor having a structure: [R1-O-C(O)-O-]xR2 wherein R1 is independently at each occurrence, an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms; x is 2-4; and R2 is an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms, provided that there are 2 atoms in the shortest chain connecting a first R1 O C(O)-O- group and a second R1-O-C(O)-O- group.