Coating compositions comprising aqueous dispersions of polymer salts and alkylphenolethylene oxide condensates and articles coated therewith

Claim 1

AN AQUEOUS COATING COMPOSITION COMPRISING (1) 33 TO 90 PARTS OF A SALT OF A COPOLYMER OF AT LEAST ONE ACID OF THE GROUP CONSISTING OF ACRYLIC, METHACRYLIC, AND ITACONIC ACIDS WITH AT LEAST ONE ESTER OF AN ACID OF SAID GROUP WITH AN ALCOHOL HAVING 1 TO 18 CARBON ATOMS, SAID COPOLYMER CONTAINING FROM ABOUT 3% TO ABOUT 20% BY WEIGHT OF SALT UNITS WHEN CALCULATED AS THE AMMONIUM SALT, (2) 5 TO 45 PARTS OF A SALT OF A COPOLYMER IN APPROXIMATELY 1:1 MOLE RATIO OF MALEIC ANHYDRIDE AND A BRANCHED CHAIN UNSATURATED HYDROCARBON OF 4 TO 10 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC OLEFINES AND UNSATURATED TERPENES, THE LAST-MENTIONED SALT HAVING A MOLECULAR WEIGHT OF ABOUT 500 TO 5000, EACH OF THE SALTS (1) AND (2) BEING THAT OBTAINED BY THE ADDITION TO AN AQUEOUS DISPERSION OF THE RESPECTIVE COPOLYMER OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM HYDROXIDE AND VOLATILE, WATER-SOLUBLE AMINES TO NEUTRALIZE ACID-CONTAINING UNITS IN THE COPOLYMER, AND (3) 5 TO 25 PARTS OF A WATER-INSOLUBLE ETHYLENE OXIDE CONDENSATE OF A HIGHER ALKYL PHENOL CONTAINING AN AVERAGE OF FROM 1 TO 5 OXYETHYLENE UNITS AND IN WHICH THE ALKYL GROUP HAS 8 TO 18 CARBON ATOMS.