Process for improving the drying qualities of hydrocarbon copolymer drying oils

Claim 1

A PROCESS FOR IMPROVING THE AIR-DRYING PROPERTIES OF A LIQUID CO-POLYMER RESULTING FROM THE CO-POLYMERIZATION OF AN ALIPHATIC MONO-ISOOLEFIN HYDROCARBON AND A CONJUGATED DIOLEFIN HYDROCARBON, EACH CONTAINING NOT MORE THAN ABOUT 8 CARBON ATOMS PER MOLECULE, IN THE PRESENCE OF HYDROGEN FLUORIDE CATALYST AT A TEMPERATURE OF FROM ABOUT -100* TO ABOUT 0* C., WHEREBY THE COPOLYMER CONTAINS ORGANIC FLUORIDES, SAID PROCESS COMPRISING SEPARATING SAID LIQUID CO-POLYMER FROM THE HYDROGEN FLUORIDE CATALYST AND THEREAFTER COMMINGLING THEREWITH A POLYHYDRIC ALCOHOL IN THE RATIO OF FROM ABOUT 1 TO 1 TO ABOUT 100 TO 1 WEIGHT PROPORTIONS OF CO-POLYMER TO POLYHYDRIC ALCOHOL, AND SUBJECTING THE RESULTANT MIXTURE TO REACTION AT A TEMPERATURE OF FROM ABOUT 50* TO ABOUT 250* C. TO EFFECT SUBSTANTIAL CONDENSATION OF THE HYDROXYL GROUPS OF SAID ALCOHOL WITH THE ORGANIC FLUORIDES IN THE CO-POLYMER.