Modified alkyd resin and process of preparing same

Claim 1

A PROCESS FOR THE PREPARATION OF A MODIFIED ALKYD RESIN WHICH COMPRISES HEATING REACTANTS CONSISTING OF (1) A POLYCARBOXYLIC ACID CONSISTING ESSENTIALLY OF A POLYCARBOXYLIC ACID FREE FROM NON-BENZENOID UNSATURATION, (2) A POLYHYDRIC ALCOHOL AND (3) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF NATURAL DRYING OILS, SEMI-DRYING OILS, THEIR ACIDS, AND MONOGLYCERIDES, UNTIL AN ACID NUMBER OF LESS THAN 30 IS REACHED, ADDING THERETO A MIXTURE OF MONOMERS CONSISTING OF (4) A MONOMERIC STYRENE SELECTED FROM THE GROUP CONSISTING OF ALPHA METHYLSTYRENE, ALPHA CHLOROSTYRENE, ORTHO METHYLSTYRENE, PARA METHYLSTYRENE META METHYLSTYRENE, 2,4-DIMETHYL STYRENE, 2,4,5-TRIMETHYL STYRENE, PARA ETHYLSTYRENE, ORTHO BROMOSTYRENE, PARA ISOPROPYLSTYRENE, PARA CHLOROSTYRENE, 2,4-DICHLOROSTYRENE, AND STYRENE AND (5) A MONOMERIC ACRYLONITRILE SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE, ETHACRYLONITRILE, ALPHA ETHACRYLONITRILE, ALPHA CHLOROACRYLONITRILE, AND HEAT REACTING THE MIXTURE IN THE PRESENCE OF A PEROXIDE CATALYST AND A MUTUALLY INERT SOLVENT UNTIL A 60% SOLIDS SOLUTION OF THE MODIFIED RESIN IN A HYDROCARBON SOLVENT HAS A VISCOSITY OF F-Z5 ON THE GARDNER-HOLDT SCALE AT 25* C., WHEREIN THE COMBINED WEIGHT OF THE MONOMERS VARIES BETWEEN 15 AND 60% OF THE TOTAL COMBINED WEIGHT OF THE ALKYD AND MONOMERS; THE WEIGHT RATIOS OF SAID MONOMERIC STYRENE TO SIAD MONOMERIC ACRYLONITRILE IS WITHIN THE RANGE OF 19:1 AND 1:1 RESPECTTIVELY.