Gelled vinyl chloride polymer plastisols and method of making same

Claim 1

THE METHOD OF REGULATING THE FLOW PROPERTIES OF A PLASTISOL WHICH COMPRISES FORMING A UNIFORM MIXTURE OF FROM 5 TO 50% OF AN AQUEOUS PASTE CONTAINING A PENTA ALKALI-METAL PENTAALKYL TRIPOLYPHOSPHATE HAVING THE FORMULA M5R5(P3O10)2 WHERE R IS AN ALKYL RADICAL HAVING FROM 6 TO 10 CARBON ATOMS AND M IS AN ALKALI-METAL, AND FROM 95 TO 50% OF A HIGH-BOILING ORGANIC LIQUID MONOMERIC PLASTICIZER SELECTED FROM THE GROUP CONSISTING OF DI- AND TRI-ESTERS OF ALKANOLS, ALKOXYALKANOLS AND CYCLOALKANOLS, AND MIXTURES THEREOF, WITH DI- AND TRI-BASIC CARBOXYLIC ACIDS FREE FROM OLEFINIC AND ACETYLENIC UNSATURATION AND WITH PHOSPHORIC ACID, SAID PERCENTAGES BEING BY WEIGHT BASED ON THE SUM OF SAID PASTE AND SAID PLASTICIZER, HEATING SAID MIXTURE UNTIL SUBSTANTIALLY ALL OF THE WATER CONTAINED THEREIN HAS BEEN EVOLVED, CONVERTING THE RESULTING MIXTURE TO A GELLED MIXTURE BY COOLING AND INTIMATELY COMMINGLING FROM 5% TO 40% BY WEIGHT (BASED ON THE WEIGHT OF THE HEREINAFTER MENTIONED PLASTISOL) OF THE RESULTING GELLED MIXTURE WITH A PLASTISOL, THE SAID PLASTISOL COMPRISING 100 PARTS OF PARTICULATE THERMOPLASTIC VINYL CHLORIDE RESIN AND FROM 50 TO 150 PARTS OF A HIGH BOILING ORGANIC LIQUID PLASTICIZER WHICH IS SUBSTANTIALLY A NON-SOLVENT FOR THE PARTICULATE RESIN AT ORDINARY TEMPERATURES BUT IS CAPABLE OF DISSOLVING THE RESIN AT ELEVATED TEMPERATURE TO FORM A SINGLE PHASE MATERIAL WHICH UPON COOLING TO ORDINARY TEMPERATURE IS A SOLID MATERIAL.

Claim 2

THE METHOD OF REGULATING THE FLOW PROPERTIES OF A PLASTISOL WHICH COMPRISES FORMING A UNIFORM MIXTURE OF FROM 5 TO 50% OF AN AQUEOUS PASTE CONTAINING A PENTA ALKALI-METAL PENTAALKYL TRIPOLYPHOSPHATE HAVING THE FORMULA M5R5(P3O10)2 WHERE R IS AN ALKYL RADICAL HAVING FROM 6 TO 10 CARBON ATOMS AND M IS AN ALKALI-METAL, AND FROM 95 TO 50% OF A HIGH-BOILING ORGANIC LIQUID MONOMERIC PLASTICIZER SELECTED FROM THE GROUP CONSISTING OF DI- AND TRI-ESTERS OF ALKANOLS, ALKOXYALKANOLS AND CYCLOALKANOLS, AND MIXTURES THEREOF, WITH DI- AND TRI-BASIC CARBOXYLIC ACIDS FREE FROM OLEFINIC AND ACETYLENIC UNSATURATION AND WITH PHOSPHORIC ACID, SAID PERCENTAGES BEING BY WEIGHT BASED ON THE SUM OF SAID PASTE AND SAID PLASTICIZER, HEATING SAID MIXTURE UNTIL SUBSTANTIALLY ALL OF THE WATER CONTAINED THEREIN HAS BEEN EVOLVED, CONVERTING THE RESULTING MIXTURE TO A GELLED MIXTURE BY COOLING AND INTIMATELY COMMINGLING FROM 5% TO 40% BY WEIGHT (BASED ON THE WEIGHT OF THE HEREINAFTER MENTIONED PLASTISOL) OF THE RESULTING GELLED MIXTURE WITH A PLASTISOL, THE SAID PLASTISOL COMPRISING 100 PARTS OF PARTICULATE THERMOPLASTIC VINYL CHLORIDE RESIN AND FROM 50 TO 150 PARTS OF A HIGH BOILING ORGANIC LIQUID PLASTICIZER WHICH IS SUBSTANTIALLY A NON-SOLVENT FOR THE PARTICULATE RESIN AT ORDINARY TEMPERATURES BUT IS CAPABLE OF DISSOLVING THE RESIN AT ELEVATED TEMPERATURE TO FORM A SINGLE PHASE MATERIAL WHICH UPON COOLING TO ORDINARY TEMPERATURE IS A SOLID MATERIAL.