Stable emulsion of copolymerized alkyd resins and addition polymerizable monomers

Claim 1

A METHOD OF PREPARING AN OIL-IN-WATER EMULSION OF AN ADDITION POLYMER-MODIFIED, OIL-MODIFIED ALKYD RESIN, SAID ADDITION POLYMER-MODIFIED RESIN BEING AT LEAST 30% BY WEIGHT OF SAID EMULSION, WHICH COMPRISES: (A) POLYMERIZING AN ADDITION POLYMERIZABLE MONOMER CONTAINING THE GROUP CH2=C< IN THE PRESENCE OF AN OIL-MODIFIED ETHYLENICALLY UNSATURATED ALKYD RESIN AND AN OIL-SOLUBLE FREE-RADICAL CATALYST UNTIL ABOUT 40 TO 70% OF THE MONOMER HAS POLYMERIZED, WHEREIN THE WEIGHT RATIO OF SAID ALKYL RESIN TO SAID MONOMER IS IN THE RANGE OF ABOUT 3:1 TO 1:2, SAID ALKYD RESIN HAVING: (I) AN ACID NUMBER IN THE RANGE OF ABOUT 5 TO 25, (II) A GARDNER-HOLDT VISCOSITY IN THE RANGE OF A TO X, AND (III) AN OIL LENGTH OF ABOUT 40 TO 80%; (B) ADDING WATER IN AN AMOUNT OF ABOUT 25 TO 70 WEIGHT PERCENT BASED ON COMBINED WEIGHT OF ALKYD RESIN, MONOMER AND WATER; AN HYDROXYLIC BASE IN AN AMOUNT SUFFICIENT TO PROVIDE A PH OF FROM ABOUT 6 TO 8; AND A NONIONIC EMULSIFYING AGENT IN AN AMOUNT OF 1 TO 10% BY WEIGHT BASED ON WATER PRESENT TO FORM A WATER-IN-OIL EMULSION; (C) CONTINUING POLYMERIZATION UNTIL ABOUT 60 TO 85% OF SAID MONOMER HAS REACTED; (D) LOWERING THE TEMPERATURE TO FORM AN OIL-IN-WATER EMULSION; (E) CONTINUING POLYMERIZATION UNTIL THE DESIRED AMOUNT OF MONOMER HAS REACTED, TO YIELD A STABLE OIL-IN-WATER EMULSION HAVING PARTICLES OF NOT MORE THAN ABOUT 3 MICRONS IN SIZE.

Claim 2

A METHOD OF PREPARING AN OIL-IN-WATER EMULSION OF AN ADDITION POLYMER-MODIFIED, OIL-MODIFIED ALKYD RESIN, SAID ADDITION POLYMER-MODIFIED RESIN BEING AT LEAST 30% BY WEIGHT OF SAID EMULSION, WHICH COMPRISES: (A) POLYMERIZING AN ADDITION POLYMERIZABLE MONOMER CONTAINING THE GROUP CH2=C< IN THE PRESENCE OF AN OIL-MODIFIED ETHYLENICALLY UNSATURATED ALKYD RESIN AND AN OIL-SOLUBLE FREE-RADICAL CATALYST UNTIL ABOUT 40 TO 70% OF THE MONOMER HAS POLYMERIZED, WHEREIN THE WEIGHT RATIO OF SAID ALKYL RESIN TO SAID MONOMER IS IN THE RANGE OF ABOUT 3:1 TO 1:2, SAID ALKYD RESIN HAVING: (I) AN ACID NUMBER IN THE RANGE OF ABOUT 5 TO 25, (II) A GARDNER-HOLDT VISCOSITY IN THE RANGE OF A TO X, AND (III) AN OIL LENGTH OF ABOUT 40 TO 80%; (B) ADDING WATER IN AN AMOUNT OF ABOUT 25 TO 70 WEIGHT PERCENT BASED ON COMBINED WEIGHT OF ALKYD RESIN, MONOMER AND WATER; AN HYDROXYLIC BASE IN AN AMOUNT SUFFICIENT TO PROVIDE A PH OF FROM ABOUT 6 TO 8; AND A NONIONIC EMULSIFYING AGENT IN AN AMOUNT OF 1 TO 10% BY WEIGHT BASED ON WATER PRESENT TO FORM A WATER-IN-OIL EMULSION; (C) CONTINUING POLYMERIZATION UNTIL ABOUT 60 TO 85% OF SAID MONOMER HAS REACTED; (D) LOWERING THE TEMPERATURE TO FORM AN OIL-IN-WATER EMULSION; (E) CONTINUING POLYMERIZATION UNTIL THE DESIRED AMOUNT OF MONOMER HAS REACTED, TO YIELD A STABLE OIL-IN-WATER EMULSION HAVING PARTICLES OF NOT MORE THAN ABOUT 3 MICRONS IN SIZE.