Emulsion polymerization of vinyl halides

Claim 1

THE METHOD OF CARRYING OUT THE PORTIONWISE EMULSION HOMOPOLYMERIZATION OF A MONOMERIC VINYL HALIDE IN A POLYMERIZATION CHAMBER MAINTAINED AT A POLYMERIZATION TEMPERATURE AND CONTAINING A MIXTURE OF WATER, AN EMULSIFYING AGENT AND A POLYMERIZATION CATALYST AND A VAPOR SPACE ABOVE SAID MIXTURE, WHICH METHOD COMPRISES INTRODUCING A PORTION OF THE MONOMERIC VINYL HALIDE INTO SAID POLYMERIZATION CHAMBER UNTIL A CONSTANT TOTAL PRESSURE CORRESPONDING ESSENTIALLY TO THE SATURATION PRESSURE OF THE SAID MONOMERIC VINYLL HALIDE AT SAID POLYMERIZATION TEMPERATURE IS ESTABLISHED THEREIN, DISCONTINUING THE INTRODUCION OF SAID MONOMERIC VINYL HALIDE INTO SAID CHAMBER AS SOON AS THE SAID TOTAL PRESSURE IS ESTABLISHED, EFFECTING THE POLYMERIZATION AT SAID POLY-MERIZATION TEMPERATURE AND SAID TOTAL PRESSURE AND CONTINUING SAID POLYMERIZATION WITHOUT THE ADDITION OF FURTHER MONOMERIC VINYL HALIDE UNTIL THE PRESSURE BEGINS TO DECREASE IN SAID CHAMBER, THEREUPON INTRODUCING ADDITIONAL MONOMERIC VINYL HALIDE AND DISCONTINUING THE INTRODUCTION OF SUCH ADDITIONAL MONOMERIC VINYL HALIDE AS SOON AS THE PRESSURE IN THE POLYMERIZATION CHAMBER HAS BEEN RE-ESTABLISHED TO SAID TOTAL PRESSURE, AND CONTINUING THE POLYMERIZATION IN ACCORDANCE WITH THE GENERAL PROCEDURE ABOVE RECITED.

Claim 2

THE METHOD OF CARRYING OUT THE PORTIONWISE EMULSION HOMOPOLYMERIZATION OF A MONOMERIC VINYL HALIDE IN A POLYMERIZATION CHAMBER MAINTAINED AT A POLYMERIZATION TEMPERATURE AND CONTAINING A MIXTURE OF WATER, AN EMULSIFYING AGENT AND A POLYMERIZATION CATALYST AND A VAPOR SPACE ABOVE SAID MIXTURE, WHICH METHOD COMPRISES INTRODUCING A PORTION OF THE MONOMERIC VINYL HALIDE INTO SAID POLYMERIZATION CHAMBER UNTIL A CONSTANT TOTAL PRESSURE CORRESPONDING ESSENTIALLY TO THE SATURATION PRESSURE OF THE SAID MONOMERIC VINYLL HALIDE AT SAID POLYMERIZATION TEMPERATURE IS ESTABLISHED THEREIN, DISCONTINUING THE INTRODUCION OF SAID MONOMERIC VINYL HALIDE INTO SAID CHAMBER AS SOON AS THE SAID TOTAL PRESSURE IS ESTABLISHED, EFFECTING THE POLYMERIZATION AT SAID POLY-MERIZATION TEMPERATURE AND SAID TOTAL PRESSURE AND CONTINUING SAID POLYMERIZATION WITHOUT THE ADDITION OF FURTHER MONOMERIC VINYL HALIDE UNTIL THE PRESSURE BEGINS TO DECREASE IN SAID CHAMBER, THEREUPON INTRODUCING ADDITIONAL MONOMERIC VINYL HALIDE AND DISCONTINUING THE INTRODUCTION OF SUCH ADDITIONAL MONOMERIC VINYL HALIDE AS SOON AS THE PRESSURE IN THE POLYMERIZATION CHAMBER HAS BEEN RE-ESTABLISHED TO SAID TOTAL PRESSURE, AND CONTINUING THE POLYMERIZATION IN ACCORDANCE WITH THE GENERAL PROCEDURE ABOVE RECITED.