Slurry polymerization process

Claim 1

A POLYMERIZATION PROCESS COMPRISING THE STEPS IN COMBINATION OF PREPARING A COLD MIXTURE OF A MAJOR PROPORTION OF ISOBUTYLENE WITH A MINOR PROPORTION OF AN UNSATURATED HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF A MULTI-UNSATURATE HAVING FROM 4 TO 14, INCLUSIVE, CARBON ATOMS PER MOLECULE AND HAVING AT LEAST TWO ALIPHATIC UNSATURATED LINKAGES AND STYRENE, AT A TEMPERATURE WITHIN THE RANGE BETWEEN -40* C. AND -110* C.; DILUTING THE MIXTURE WITH FROM 1 TO 20 VOLUMES OF INERT DILUENT WHICH IS A NONSOLVENT FOR THE POLYMER; CIRCULATING THE COLD OLEFINIC-DILUENT MIXTURE AT A FLOW VELOCITY WITHIN THE RANGE BETWEEN 8 FEET AND 25 FEET PER SECOND, SIMULTANEOUSLY PRODUCING THEREIN A REYNOLDS'' TURBULENCE NUMBER WITHIN THE RANGE BETWEEN 2,500,000 AND 4,500,000, AND POLYMERIZING THE MIXTURE BY THE ADDITION THERETO OF A LIQUID CATALYST, THEREBY CAUSING THE POLYMERIZATION TO OCCUR UNDER SUCH CONDITIONS OF FLOW RATE AND TURBULENCE AS TO YIELD A FINE-GRAINED SLURRY OF SOLID POLYMER IN DILUENT WITH A MINIMUM AMOUNT OF POLYMER REMOVED FROM THE SLURRY BY ADHESION TO CONTAINER WALLS.