Modified oil copolymers and process for preparing same

Claim 1

A PROCESS FOR PREPARING A COATING VEHICLE AS A COPOLYMERIC DERIVATIVE OF AN ALPHA-BETA ETHYLENIC DICARBOXYLIC ACID MODIFIED OIL COMPOUND AND A VINGYL BENZENE COMPOUND COMPRISING THE STEPS OF: PREPARING A MIXTURE OF A POLYHYDRIC ALCOHOL IN EXCESS OF AT LEAST 2% OF THE STOICHIOMETRIC EQUIVALENT OF THE TOTAL ACIDITY OF THE REACTANT COMPONENTS FORMING THE SAID MODIFIED OIL COMPOUND WITH AN UNSATURATED NON-CONJUGATED FATTY OIL BASE MATERIAL SELECTED FROM THE GROUP CONSISTING OF NONCONJUGATED DRYING AND SEMI-DRYING OILS AND ACIDS DERIVED FROM SAID OILS AND HAVING AN IODINE NUMBER BETWEEN ABOUT 100 AND ABOUT 200, ADDING A CATALYTIC AMOUNT OF A BASIC CATALYST, EFFECTING THE FORMATION OF THE PARTIAL ESTER OF THE POLYHDRIC ALCOHOL AND FATTY OIL BASE MATERIAL WITH SAID PARTIAL ESTER CONTAINING BOTH ESTER AND HYDROXYL GROUPS, NEURALIZING THE BASIC CATALYST, ADDING AN ACID ESTERIFICATION CATALYST IN A CATALYTIC AMOUNT, AN INERT SOLVENT, AND AN ALPHA-BETAF ETHYLENIC DICARBOXYLIC ACID COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALPHA-BETA ETHYLENIC DICARBOXYLIC ACIDS AND ALPHA-BETA ETHYLENIC DICARBOXYLIC ACID ANHYDRIDES IN AN AMOUNT OF AT LEAST ABOUT 2% BY WEIGHT OF THE COMBINED REACTANTS, AND EFFECTING ESTERIFICATION AT A TEMPERATURE NOT EXCEEDING ABOUT 380* F. IS A PERIOD OF ABOUT 8 TO 10 HOURS TO FORM ESSENTIALLY A FULL DI-ESTER WITH THE AVAILABLE HYDROXYL GROUPS OF THE SAID PARTIAL ESTER, ADDING ADDITIONAL INERT ORGANIC SOLVENT WITH A KAURI-BUTANOL VALUE IN EXCESS OF ABOUT 25, IN AN AMOUNT BETWEEN ABOUT 10% AND 65% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE SOLVENT AND COPOLYMERIZABLE VINYL REACTANTS, ADDING AN ORGANIC PEROXIDE CATALYST IN A CATALYTIC AMOUNT AND AT LEAST ABOUT 30% POLYMERIZABLE VINGYL BENZENE COMPOUND, HAVING A REACTIVE VINGYL GROUP, AND EFFECTING COPOLYMERIZATION WITH THE ESSENTIALLY FULLY ESTERIFIED MODIFIED OIL MATERIAL AND SAID VINGYL COMPOUND IN A PERIOD OF ABOUT 4 TO ABOUT 6 HOURS AT A REACTION TEMPERATURE BETWEEN ABOUT 250* F. AND 325* F, WITH THE PRODUCTION OF A COATING VEHICLE HAVING A SOLIDS CONTENT IN EXCESS OF ABOUT 43%, A GARDNER-HOLDT VISCOSITY ON THE ORDER OF FROM B TO O INCLUSIVE, A GARDENER COLOR NOT IN EXCESS OF ABOUT 2 AND AN ACID NUMBER IN THE RANGE OF ABOUT 1 TO ABOUT 4 ON THE NON-VOLATILE.