Process for polymerizing vinyl ester in aqueous emulsion containing watersoluble colloidal emulsifying agent and water-immiscible non-ionic surface active agents

Claim 1

PROCESS FOR THE PRODUCTION OF A LATEX OF A POLYMER OF A VINYL ESTER, COMPRISING POLYMERIZING A VINYL ESTER OF A FATTY ACID IN AN AQUEOUS EMULSION CONTAINING ABOUT 0.1 TO 1% BY WEIGHT OF SAID EMUSION OF WATER-SOLUBLE HYDROXYETHYL CELLULOSE, ABOUT 0.05 TO 0.5% BY WEIGHT OF SAID EMULSION OF AN ANIONIC SURFACE-ACTIVE AGENT COMPRISING AN ORGANIC SULFONATE, ABOUT 0.1 TO 1% BY WEIGHT OF SAID EMULSION OF A WATER-MISCIBLE NONIONIC SURFACEACTIVE AGENT CONTAINING POLYMERIZED ETHYLENE OXIDE UNITS, AND ABOUT 0.5 TO 3% BY WEIGHT OF SAID EMULSION OF A WATER-IMMISCIBLE NONIONIC SURFACE-ACTIVE AGENT CONTAINING A POLYALKYLENE OXIDE CHAIN, SAID VINYL ESTER COMPRISING AT LEAST 70% BY WEIGHT OF THE TOTAL MONOMER REACTANT IN THE PROCESS.