Three component catalyst for polymerization of 1-olefins containing titanium halide, aluminum alkyl, and pyridine

Claim 1

A PROCESS FOR THE RAPID STEREOSPECIFIC POLYMERIZATION OF AN ALPHA-OLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPYLENE AND BUTENE-1 TO A POLYMERIZATE HAVING A HIGHER THAN NORMAL CONTENT OF ISOTACTIC MACROMOLECULES, WHICH PROCESS COMPRISES CONTACTING THE ALPHA-OLEFIN, UNDER POLYMERIZATION CONDITIONS, WITH A CATALYST PREPARED FROM A SUBSTANTIALLY SOLID, HIGHLY CRYSALLINE HALIDE OF TITANIUM IN WHICH THE METAL HAS A VALENCY NOT HIGHER THAN 3, AND AN ALKYL COMPOUND OF ALUMINUM IN WHICH THE ALKYL GROUPS CONTAIN FROM 2 TO 5 CARBON ATOMS, AND WHICH CATALYST IS ACTIVATED AS THE RESULT OF THE INCLUSION OF PYRIDINE WITH ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THE TITANIUM HALIDE, THE ALKYL ALUMINUM COMPOUND, AND THE CATALYST FROM THE TITANIUM HALIDE AND ALKYL ALUMINUM COMPOUND, IN AN AMOUNT SUCH THAT THE MOLAR RATIO OF THE ORGANIC AMINE TO THE TATANIUM HALIDE IS 0.05:1 TO 1:1.