Polymerization of butadiene with stabilized catalyst system

Abstract

Abstract 1. THE PROCESS FOR THE POLYMERIZATION OF BUTADIENE AND BUTADIENE IN MIXTURE WITH OTHER DIOLEFINS TO FORM POLYMERS CONTAINING A HIGH PROPORTION OF THE BUTADIENE IN THE CIS-1,4 CONFIGURATION COMPRISING CONTACTING AT LEAST ONE MONOMER FROM THE GROUP OF BUTADIENE AND BUTADIENE IN MISTURE WITH OTHER DIOLEFINS UNDER POLYMERIZATION CONDITIONS, WITH A CATALYST COMPRISING (1) AT LEAST ONE ORGANOALUMINUM COMPOUND, (2) AT LEAST ONE ORGANONICKEL COMPOUND SELECTED FROM THE GROUP CONSISTING OF NICKEL SALTS OF CARBOXYLIC ACIDS, ORGANIC COMPLEX COMPOUNDS OF NICKEL, N-ALLYL TYPE COMPLEXES OF NICKEL, AND NICKEL TETRACARBONYL, AND (3) AT LEAST ONE FLUORINE COMPOUND SELECTED FROM THE GROUP OF HYDROGEN FLUORIDE, BORON TRIFLUORIDE, COMPLEXES OF HYDROGEN FLUORIDE AND COMPLEXED OF BORON TRIFLUORIDE, SAID COMPLEXED PREPARED BY COMPLEXING HYDROGEN FLUORIDE AND/OR BORON TRIFLUORIDE WITH A MEMBER OF THE CLASS CONSISTING OF KETONES, ETHERS, ESTERS, ALCOHOLS, NITRILES AND WATER, SAID CATALYST BEING PERFORMED BY MIXING THE CATALYST COMPONENTS IN THE PRESENCE OF A POLYMERIC CATALYST STABILIZER SELECTED FROM THE GROUP OF POLYMERS DERIVED FROM THE HOMOPOLYMERIZATION OF HYDROCARBON CONJUGATED DIOLEFINS, THE COPOLYMERIZATION OF HYDROGEN CONJUGATED DIOLEFINS AND THE COPOLYMERIZATION OF HYDROCARBON CONJUGATED DIOLEFINS WITH STYRENE OR METHYL SUBSTITUTED STYRENE, PRIOR TO CONTACTING THE MAJOR PORTION OF BUTADIENE OR BUTADIENE IN COMBINATION WITH OTHER DIOLEFINS TO BE POLYMERIZED, SAID CATALYST BEING PREPARED OR PREFORMED IN SUCH A MANNER THAT SAID POLYMERIC CATALYST STAVILIZER IS ADDED TO THE MIXTURE BEFORE THE REACTION BETWEEN THE ORGANOALUMINUM COMPOUND AND THE ORGANONICKEL COMPOUND.

Inventors

• 👤 M Throckmorton
• 👤 P Sandstrom

Bibliographic Details