Method for the single-step production of vinyl polymers and the reactor for performing the method

Abstract From the Canadian patent

Method for a single-step production of vinyl polymers by a heterogeneous polymerization in bulk under the effect of organometallic catalysts up to a high degree of conversion. According to this method a vinyl monomer is charged into a vertical reactor provided with planetary stirrers placed outside the reactor axis then a solution of, an organometalic catalyst is introduced under stirring in partial doses of size 10-5 to 10-3 mole up to the final amount of 5x10-4 to 5x10-2 mole of catalyst per mole of the monomer. The batch is stirred, the formed compact mass is cut and disintegrated with the planetary stirrers and, at the same time, wiped out from the surface of reactor with wiping blades …