Alkyd resin manufacture with isophthalic acid

Claim 1

THE METHOD FOR PREPARING AN OIL-MODIFIED ALKYD RESIN FROM ISOPHTHALIC ACID, WHICH COMPRISES: (1) REACTING TOGETHER A VEGETABLE OIL AND ISOPHTHALIC ACID AT A TEMPERATURE FROM ABOUT 450* F. TO ABOUT 575* F.; (2) COOLING THE REACTION MIXTURE OF (1) FROM A TEMPERATURE FROM ABOUT 450* F. TO ABOUT 575* F., TO A SUBSTANTIALLY LOWER TEMPERATURE WITHIN THE TEMPERATURE RANGE OF FROM ABOUT 400* F. TO ABOUT 475* F., AND (3) REACTING A SATURATED ALIPHATIC POLYHYDRIC ALCOHOL WITH THE COOLED REACTION MIXTURE (2) AT A TEMPERATURE BETWEEN ABOUT 400* F. AND ABOUT 500* F., WHEREUPON SAID OIL-MODIFIED ALKYD RESIN IS FORMED; THE PROPORTION OF VEGETABLE OIL BEING FROM ABOUT THIRTY-FIVE TO ABOUT NINETY PERCENT BY WEIGHT OF THE TOTAL REACTANTS, OF POLYHYDRIC ALCOHOL BEING AT LEAST SUFFICIENT FOR COMPLETE ESTERIFICATION OF ALL CARBOXYLIC ACIDS PRESENT IN THE REACTION MIXTURE (2), AND OF ISOPHTHALIC ACID BEING FROM ABOUT TEN TO ABOUT FORTY PERCENT BY WEIGHT OF SAID TOTAL.

Claim 2

THE METHOD FOR PREPARING AN OIL-MODIFIED ALKYD RESIN FROM ISOPHTHALIC ACID, WHICH COMPRISES: (1) REACTING TOGETHER A VEGETABLE OIL AND ISOPHTHALIC ACID AT A TEMPERATURE FROM ABOUT 450* F. TO ABOUT 575* F.; (2) COOLING THE REACTION MIXTURE OF (1) FROM A TEMPERATURE FROM ABOUT 450* F. TO ABOUT 575* F., TO A SUBSTANTIALLY LOWER TEMPERATURE WITHIN THE TEMPERATURE RANGE OF FROM ABOUT 400* F. TO ABOUT 475* F., AND (3) REACTING A SATURATED ALIPHATIC POLYHYDRIC ALCOHOL WITH THE COOLED REACTION MIXTURE (2) AT A TEMPERATURE BETWEEN ABOUT 400* F. AND ABOUT 500* F., WHEREUPON SAID OIL-MODIFIED ALKYD RESIN IS FORMED; THE PROPORTION OF VEGETABLE OIL BEING FROM ABOUT THIRTY-FIVE TO ABOUT NINETY PERCENT BY WEIGHT OF THE TOTAL REACTANTS, OF POLYHYDRIC ALCOHOL BEING AT LEAST SUFFICIENT FOR COMPLETE ESTERIFICATION OF ALL CARBOXYLIC ACIDS PRESENT IN THE REACTION MIXTURE (2), AND OF ISOPHTHALIC ACID BEING FROM ABOUT TEN TO ABOUT FORTY PERCENT BY WEIGHT OF SAID TOTAL.