Process for polymerizing dienes

Claim 1

THE METHOD OF POLYMERIZING A MONOMERIC MATERIAL SELECTED FROM THE CLASS CONSISTING OF BUTADIENE-1,3 ISOPRENE, PIPERYLENE, 2-ETHYL-BUTADIENE-1,3, 2-PROPYL-BUTADIENE-1,3, 2-PHENYL-BUTANDIENE-1,3, AND 2-NEOPENTYL-BUTADI ENE-1,3, COMPRISING COMBINING SAID MONOMERIC MATERIAL WITH A REACTION MIXTURE CONTAINING AN INERT HYDROCARBON DILUENT AND FROM ABOUT 0.5 TO ABOUT 7% WT. BASED ON SAID MONOMERIC MATERIAL OF AN ACTIVE CATALYST PREPARED BY COMBINING (1) AN ALUMINUM ALKYL AND (2) A COMPOUND OF A HEAVY METAL SELECTED FROM THE CLASS CONSISTING OF TITANIUM, VANADIUM, COBALT AND NICKEL, THE RATIO OF SAID HEAVY METAL: ALUMINUM IN SAID CATALYST BEING, WHEN TITANIUM IS THE HEAVY METAL, FROM ABOUT 0.5:1 TO 3:1, WHEN VANADIUM, FROM ABOUT 1:1 TO ABOUT 1:20, WHEN COBALT, FROM ABOUT 25:1 TO ABOUT 1:25, AND WHEN NICKEL, FROM ABOUT 10:1 TO ABOUT 1:10, WITH (3) FROM 0.1 TO 1.1%/WT. BASED ON THE WEIGHT OF SAID MONOMERIC MATERIAL OF AN ORGANOSILICON MODIFIER SOLUBLE IN SAID MIXTURE AND SELECTED FROM THE CLASS CONSISTING OF SILICONE GREASES, METHYL SILICONE OILS, TETRAETHYL SILICATE, AND DIPHENYL SILANE DIOL, AND CARRYING OUT THE POLYMERIZATION OF SAID MONOMERIC MATERIAL IN SAID REACTION MIXTURE AT A TEMPERATURE FROM ABOUT -5* TO ABOUT 35*C.