Styrenated oil-modified alkyd resins modified with divinyl benzene and the process of preparing same

Claim 1

A PROCESS COMPRISING HEAT-REACTING A GLYCERIDE OILMODIFIED ALKYD RESIN WITH A MIXTURE IF (U) A MEMBER SELECTED FROM THE FROUP CONSISTING OF STYRENE, RING-SUBSTITUTED ALKYL STYRENES AND RING-SUBSTITUTED CHLOROSTYRENES AND (2) DIVINYL BENZENE IN AN INERT ORGANIC SOLVENT AND IN THE PRESENCE OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF TERTIARY ALKYL-SUBSTITUTED DIPEROXIDES AND TERTIARY ALKYL-SUBSTITUTED HYDROPEROXIDES, AT ABOUT REFLUX TEMPERATURE, WHEREIN SAID DIVINYL BENZENE COMPRISES ABOUT 0.3%-1.0% BY WEIGHT BASED ON THE TOTAL WEIGHT OF SAID ALKYD RESIN AND SAID STYRENE, WHEREIN THE PEROXIDE GROUP OF SAID CATALYST IS DIRECTLY ATTACHED TO THE TERTIARY GROUP, WHEREIN THE POLYCARBOXYLIC ACID USED IN THE PREPARATION OF THE ALKYD RESIN IS COMPRISED OF AT LEAST 90% BY WEIGHT OF A POLYCARBOXYLIC ACID WHICH IS FREE OF NON-BENZENOID UNSATURATION AND SAID POLYCARBOXYLIC XID WHICH IS FREE OF NON-BENZENOID UNSATURATION IS PRESENT IN AN AMOUNT VARYING BETWEEN ABOUT 20% AND 36% BY WEIGHT BASED ON THE TOTAL WEIGHT OF OIL-MODIFIED ALKYD RESIN SOLIDS, WHEREIN THE AMOUNT OF POLYHYDRIC ALCOHOL USED TO PREPARE SAID OIL-MODIFIED ALKYD RESIN IS BETWEEN ABOUT 10% AND 30% IN EXCESS OF THAT AMOUNT STOICHIOMETRICALLY REQUIRED TO SESTERIFY THE POLYCARBOXYLIC ACID AND WHEREIN THE STYRENE COMPOUND USED TO REACT WITH SAID OIL-MODIFIED ALKYL RESIN IS PRESENT IN MINOR AMOUNTS COMPARED WITH THE AMOUNT OF OIL-MODIFIED ALKYD RESIN SOLIDS.