Emulsion polymerization of vinyl acetate

Claim 1

THE PROCESS WHICH COMPRISES DISPERSING VINYL ACETATE MONOMER IN A 2 TO 10% BY WEIGHT AQUEOUS SOLUTION OF A HYDROPHILIC DISPERSING AGENT WHICH IS A POLYHYDROXY, POLYMERIC, FILM-FORMING SUBSTANCE SUBSTANTIALLY INSOLUBLE IN WATER AT TEMPERATURES BELOW 50* C. BUT SOLUBLE IN WATER AT A TEMPERATURE NOT LOWER THAN 50* C. TO FORM A DISPERSION CONTAINING NOT MORE THAN 5% BY WEIGHT OF SAID MONOMER, SUBJECTING SAID DISPERSION TO POLYMERIZATION IN THE PRESENCE OF A PEROXYGEN TYPE CATALYST, WHILE DISPERSING THEREIN FURTHER QUANTITIES OF SAID MONOMER SO AS TO MAINTAIN A MONOMER CONCENTRATION NOT GREATER THAN 5% BY WEIGHT WHEN THE POLYMER CONCENTRATION IS NOT OVER 20% BY WEIGHT AND NOT GREATER THAN 3% BY WEIGHT WHEN THE POLYMER CONTENT HAS EXCEEDED 20% BY WEIGHT, CONTINUING AS ABOVE UNTIL THE POLYMER CONTENT HAS REACHED 20 TO 40% BY WEIGHT CONTROLLING THE PH OF THE POLYMERIZATION REACTION MIXTURE SO THAT IT IS INITIALLY NOT LESS THAN 4 AND FINALLY NOT GREATER THAN 6 AND ADDING TO THE REACTION MIXTURE BEFORE POLYMERIZATION IS 50% COMPLETE AN ALCOHOL SELECTED FROM THE GROUP CONSISTING OF THE PRIMARY ALIPHATIC SATURATED AND MONOOLEFINIC ALCOHOLS HAVING AT LEAST ONE CHAIN OF NOT LESS THAN 8 CARBON ATOMS AND A TOTAL OF 8 TO 20 CARBON ATOMS, IN AMOUNT EQUAL TO 0.1 TO 5% BY WEIGHT OF THE TOTAL VINYL ACETATE POKYMERIZED, AND A HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF (1) SATURATED ALIPHATIC HYDROCARBONS HAVING PER MOLECULE 6 TO 20 CARBON ATOMS AND AT LEAST ONE UNBRANCHED CHAIN OF AT LEAST 6 CARBON ATOMS (2) BENZENE AND (3) AROMATIC HYDROCARBONS HAVING THE FORMULA