Polymerization of olefins in the presence of a catalyst consisting of titanium trichloride, an alkyl aluminum dihalide and an alkoxy silane

Claim 1

IN THE HOMOPOLYMERIZATION OF ALPHA-OLEFINS HAVING FROM 3 TO 8 CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMERS, THE IMPROVEMENT WHICH COMPRISES CONTACTING THE OLEFIN, UNDER POLYMERIZATION CONDITIONS OF TEMPERATURE AND PRESSURE, WITH A CATALYST FORMED BY MIXING, IN AN INERT HYDROCARBON SOLVENT, AN ALKYL ALUMINUM DIHALIDE, A TITANIUM TRICHLORIDE SELECTED FROM THE GROUP CONSISTING OF X TITANIUM TRICHLORIDE, ER TITANIUM TRICHLORIDE, AND ERA TITANIUM TRICHLORIDE AS HEREINBEFORE DEFINED, AND AN ALKOXY SILANE HAVING THE FORMULA R1R2R3R4SI WHEREIN R1 IS AN ALKOXY RADICAL AND R2, R3, AND R4 ARE SELECTED FROM THE GROUP CONSISTING OF ALKOXY RADICALS AND HYDROCARBON RADICALS, AND WEREIN THE MOL RATIO OF ALKYL ALUMINUM COMPOUND TO TITANIUM TRICHLORIDE IS FROM ABOUT 0.5:1 TO 5:1, AND THE MOL RRATIO OF ALKYL ALUMINUM COMPOUND TO TOTAL ALKOXY SILANE OXYGEN IS FROM 1:3 TO 4:1.