Process for post-bodying styrenated oilmodified alkyd resins

Claim 1

A PROCESS FOR INCREASING THE VISCOSITY OF A STYRENATED GLYCERIDE OIL MODIFIED ALKYD RESIN COMPRISING INTRODUCING A SMALL BUT EFFECTIVE AMOUNT OF AN ORGANIC PEROCIDE CATALYST INTO AN INERT ORGANIC SOLVENT SOLUTION OF A PREFORMED STYRENATED OIL MODIFIED ALKYD RESIN CONTAINING MINOR AMOUNTS OF RESIDUAL STYRENE MONOMER, WHICH CANNOT BE MADE SIGNIFICANTLY MORE VISCOUS BY HEATING ALONE AT CONVENTIONAL POLYMERIZATION TEMPERATURES, AND HEATING, AT A TEMPERATURE BETWEEN ABOUT 90*C. AND THE REFLUX TEMPERATURE, IN THE PRESENCE OF SAID CATALYST WITH CONSTANT AGITATION TO EFFECT THE VISCOSITY INCREASE DESIRED WHEREIN SAID PREFORMED ALKYD RESIN IS THE REACTION PRODUCT OF AN ALIPHATIC POLYHYDRIC ALCOHOL, A POLYCARBOXYLIC ACID FREE OF NON-BENZENOID UNSATURATION AND A GLYCERIDE OIL, REACTED WITH A POLYMERIZABLE STYRENE SELECTED FROM THE GROUP CONSISTING OF STYRENE, RING-SUBSTITUTED HALOSTYRENES AND RING-SUBSTITUTED ALKYL STYRENES AND WHEREIN SAID POLYCARBOXYLIC ACID IS PRESENT IN AN AMOUNT APPROXIMATING AT LEAST 90% BY WEIGHT BASED ON THE TOTAL AMOUNT OF POLYCARBOXYLIC ACID USED.