Process for altering the particle size distribution of alpha mono-olefin polymers

Claim 1

A METHOD OF INCORPORATING POLYMER IMPROVING ADDITIVES INTO PARTICLES OF ALPHA OLEFIN POLYMER POWDERS OBTAINED BY POLYMERIZATION OF C2 TO C8 ALPHA OLEFINS IN THE PRESENCE OF AN INERT ORGANIC POLYMERIZATION LIQUID AND A COORDINATION CATALYST COMPLEX WHICH COMPRISES ADDING TO A WET CAKE OF FINELY DIVIDED SOLID POLYOLEFIN POLYMER CONTAINING 20 TO 80 PERCENT BY WEIGHT OF THE INERT POLYMERIZATION LIQUID SELECTED FROM THE GROUP CONSISTING OF C5 TO C7 LIQUID SATURATED HYDROCARBONS FROM ABOUT 1 TO 10 VOLUMES OF WATER AND A POLYMER-IMPROVING ADDITIVE, HEATING SAID SLURRY IN A CLOSED AUTOCLAVE WITHIN THE RANGE OF 100 TO 300*F., AND MAINTAINING AUTOGENOUS PRESSURE WITHIN SAID AUTOCLAVE, AGITATING SAID SLURRY FOR A PERIOD OF TIME NECESSARY TO CONDITION SAID POLYMER TO AGGLOMERATE A PART THEREOF AND FORM A VARIED DISTRIBUTION OF PARTICLE SIZES BY FLASHING OFF THE POLYMERIZATION LIQUID, WHEREBY A POLYMER POWDER HAVING A DIFFERENT PARTICLE SIZE DISTRIBUTION IN THE RANGE OF 70 TO 250 MICRONS IS RECOVERED.