Three-component alkyl aluminum halide catalysts for olefin polymerization and olefin polymerization process therewith

Claim 1

IN THE POLYMERIZATION OF A-MONOOLEFINIC HYDROCARBONS CONTAINING 3 TO 8 CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE CONSISTING ESSENTIALLY OF AN ALUMINUM SESQUIHALIDE HAVING THE FORMULA R3AL2X3 WHEREIN R IS A HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS CONTAINING 1 TO 12 CARBON ATOMS, PHENYL AND BENZYL, AND X IS A HALOGEN ATOM SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, A CHLORIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, VANADIUM, CHRONIUM AND MOLYBDENUM AND AN ORGANOPHOSPHORUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRI-LOWER ALKYL PHOSPHITES, TRI-LOWER ALKYL PHOSPHATES AND HEXA-LOWER ALKYL PHOSPHORIC TRIAMIDES, THE MOLAR RATIO OF ALUMINUM SEQUIHALIDE TO ORGANOPHOSPHORUS COMPOUND BEING WITHIN THE RANGE OF 1:1 TO 1:0.25.