Method of preparing vinyl chloride resin dispersions and resulting products

Claim 1

THE PROCESS OF PREPARING A RESIN COATING COMPOSITION WHICH COMPRISES MILLING TOGETHER 50 TO 80 PARTS BY WEIGHT OF PLASTICIZER MIXTURE OF SOLVENT AND NON-SOLVENT PLASTICIZERS AND 100 PARTS OF A FINELY DIVIDED VINYL CHLORIDE RESIN CONSISTING OF AT LEAST 85% BY WEIGHT OF VINYL CHLORIDE HAVING AN AVERAE PARTICLE SIZE NOT MORE THAN 10 MICRONS IN DIAMETER UNTIL PARTIAL SOLVATION IS SECURED AND UNTIL THE COMPOSITION HAS SUBSTANTIAL LENTH AND ADDING AS THE ONLY VOLATILE MATERIAL A VOLATILE ALIHATIC PETROLEUM HYDROCARBON IN AN AMOUNT NOT EXCEEDING 25 PARTS BY WEIGHT OF THE RESIN, SAID SOLVENT PLASTICIZER BEING PRESENT IN QUANTITY OF BETWEEN 1.0 AND 50 PERCENT BY WEIGHT OF THE PLASTICIZER MIXTURE, SAID SOLVENT PLASTICIZER BEING THE ONLY SOLVATING AGENT FOR THE RESIN EMPLOYED IN THE PROCESS, SAID SOLVENT PLASTICIZER BEING AN ORGANIC LIQUID HAVING AN EVAPORATION RATE LESS THAN THAT OF DIMETHYL PHTHALATE, AND WHEN MIXED WITH SAID RESIN IN THE RATIO OF NINE PARTS OF PLASTICIZER TO ONE PART OF RESIN BY WEIGHT, STIRRED AND HEATED TO 302* F., AND COOLED TO ROOM TEMPERATURE, THE RESULTING MIXTURE IS A SOL, SAID NON-SOLVENT PLASTICIZER BEING AN ORGANIC LIQUID HAVING AN EVAPORATION RATE LESS THAN THAT OF DIMETHYL PHTHALATE, AND WHEN MIXED WITH SAID RESIN IN THE RATIO OF NINE PARTS OF PLASTICIZER TO ONE PART OF RESIN BY WEIGHT, STIRRED AND HEATED TO 302* F., AND COOLED TO ROOM TEMPERATUE, THE RESULTING MIXTUE IS A GEL.