Polymerization process

Claim 1

IN A METHOD WHEREIN AN ALPHA-OLEFIN HAVING FROM TWO TO THREE CARBON ATOMS IS POLYMERIZED IN CONTACT WITH A CATALYST COMPOSITION COMPRISING A COMPLEX ORGANOMETAL CATALYST, THE STEPS OF MAINTAINING AN ALPHA-OLEFIN HAVING FROM TWO TO THREE CARBON ATOMS IN A BODY OF GAS IN A POLYMERIZATION REACTION ZONE AND POLYMERIZING THE ALPHA-OLEFIN BY FEEDING INTO THAT BODY OF GAS AN UNCONFINED LIQUID STREAM OF AN ORGANO-ALUMINUM COMPOUND HAVING THE FORMULA RA1Y2 WHEREIN R IS AN ALKYL RADICAL HAVING FROM ONE TO EIGHT CARBON ATOMS AND Y IS A MEMBER OF THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM ONE TO EIGHT CARBON ATOMS, HYDROGEN, AND HALOGEN, ALSO ONE TO EIGHT CARBON ATOMS, HYDROGEN, AND HALOGEN, ALSO OF AN INORGANIC METAL HALIDE SELECTED FROM THE GROUP CONSISTING OF TITANIUM, VANADIUM, AND ZIROCONIUM HALIDES, THE ORGANO-ALUMINUM COMPOUND AND THE METAL HALIDE BEING OF KINDS AND IN AMOUNTS WHOSE MIXTURES ARE EFFECTIVE CATALYSTS FOR POLYMERIZING THE ALPHA-OLEFIN, AND GENERATING SUCH POLYMERIZATION CATALYST IN SITU BY IMPINGING SUCH STREAMS OF ONE ANOTHER IN THE BODY OF GAS, INTERMINGLING THE LIQUIDS AND DISPERSING THE SAME IN THE BODY OF GAS INTO FREE-FALLING DROPLETS COMPRISING THE RESULTING CATALYTIC MIXTURE OF THE ORGANO-ALUMINUM COMPOUND AND THE METAL HALIDE.