Diolefin polymerization catalyst composition
Abstract
Abstract THERE IS DISCLOSED A PROCESS WHICH COMPRISES THE POLYMERIZATION OF AT LEAST ONE CONJUGATED DIOLEFIN BY CONTACTING SAID CONJUGATED DIOLEFIN, UNDER SOLUTION POLYMERIZATION CONDITIONS, WITH A CATALYST SYSTEM COMPRISING (1) A COMPOUND SELECTED FROM THE GROUPS CONSISTING OF ORGANOALUMINUM COMPOUNDS CONTAINING AT LEAST ONE CARBON TO ALUMINUM BOND, (2) AN ORGANOMETALLIC COMPOUND, THE METAL OF WHICH IS SELECTED FROM THE CLASS COMPRISING METALS OF GROUP III-B OF THE PERIODIC TABLE HAVING ATOMIC NUMBERS OF 21, 39 AND 57 THROUGH 71 INCLUSIVE AND (3) AT LEAST ONE COMPOUND CONTAINING ONE OR MORE HALIDE IONS, THE IMPROVEMENT COMPRISING PREFORMING AND AGING THE CATALYST SYSTEM WITH AT LEAST ONE CONJUGATED DIOLEFIN IN AN AMOUNT WHICH GIVES A MOLE RATIO OF DIOLEFIN TO GROUP IIIB METAL COMPOUND RANGING FROM 0.2 1 TO ABOUT 3000 1.
Inventors
- 👤 M Throckmorton
- 👤 R Mournighan
Bibliographic Details
Claims Analysis
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