COMPONENTS AND CATALYSTS FOR THE POLYMERIZATION OF OLEFINS

摘要

SOLID CATALYST COMPONENTS AND CATALYSTS THEREFROM, THE CATALYSTS COMPRISING THE REACTION PRODUCT OF:I. A SOLID CATALYST COMPONENT CONTAINING AN INTERNAL DONOR;II. AN AL-ALKYL COMPOUND, AND OPTIONALLYIII. AN EXTERNAL DONOR;THE INTERNAL DONOR AND/OR THE EXTERNAL DONOR BEING CYCLOPOLYENIC L,3-DIETHERS WHEREIN THE CARBON ATOM IN POSITION 2 BELONGS TO A PARTICULAR CYCLIC OR POLYCYCLIC STRUCTURE CONTAINING TWO OR THREE UNSATURATIONS.