Emulsion polymerization of vinyl chloride using a fatty acid soap and a sulfur-containing emulsifying agent

Claim 1

AN AQUEOUS LATEX COMPRISING: (A) A CONTINUOUS AQUEOUS PHASE; (B) AS A DISPERSED PHASE, AT LEAST 40 PERCENT BY WEIGHT BASED ON TOTAL LATEX OF A VINYL CHLORIDE RESIN SELECTED FROM THE GROUP CONSISTING OF A HOMOPOLYMER OF VINYL CHLORIDE AND COPOLYMER THEREOF WITH UP TO 20 PERCENT OF ETHYLENICALLY UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH, AND (C) FROM ABOUT 0.5 TO ABOUT 2.0 PERCENT BY WEIGHT OF A SIRFACTAMT CONSISTING ESSENTIALLY OF A MIXTURE OF (1) AN EFFECTIVE AMOUNT UP TO 0.5 PERCENT BY WEIGHT OF A SALT SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL, AMMONIUM, AND WATER-SOLUBLE AMINE SALTS OF ALKYL SULFATES, ALKYL ARYL SULFONATES AND MIXTURES THEREOF, THE ALKYL GROUPS OF SAID SALTS CONTAINING FROM 8 TO 18 CARBON ATOMS, AND (2) AN EFFECTIVE AMOUNT OF A SALT SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL, AMMONIUM, AND WATER-SOLUBLE AMINE SALTS OF FATTY ACIDS CONTAINING FROM 8 TO 18 CARBON ATOMS, THE AMOUNT OF SAID FATTY ACID SALT EXCEEDING THE AMOUNT OF SALT (1) WHEN THE TOTAL SURFACTANT IS LESS THAN ABOUT 0.75 PERCENT BY WEIGHT, THE QUANTITIES OF SAID SURFACTANT AND THE COMPONENTS THEREOF BEING BASED ON THE WEIGHT OF RESIN (B) WITH THE AMOUNT OF SALT (2) CALCULATED AS THE WEIGHT OF FATTY ACID FROM WHICH SALT (2) IS DERIVED.