Aqueous composition comprising ammonium salt of maleamic acid/diisobutylene copolymer and linear addition polymer and article coated therewith

Claim 1

AN AQUEOUS COMPOSITION COMPRISING (1) AN AMMONIUM SALT OF AN APPROXINATELY 1:1 MOLE RATIO COPOLYER OF MALEAMIC ACID AND DIISOBUTYLENE, SAID SALT HAVING A AVERAGE MOLECULAT WEIGHT OF ABOUT 500 TO 5000, AND (2) A WATER-INSOLUBLE LINEAR ADDITION POLYMER OF POLYMERIZABLE MONOMERIC MOLECULES SELECTED FROM THE GROUPE CONSISTING OF ACRYLIC ACIS EATERS OF PROMARY AND SECONDARY ALKANOLS HAVING 1 TO 18 CARBON ATOMS, METHACRYLIC ACID ESTERS OF ALKANOLS HAVING 5 TO 18 CARBON ATOMS, MIXTURES THEREOF WITH EACH OTHER, AND MIXTURES OF AT LEAST ONE OF THESE ESTERS WITH MOLECULE OF AT LEAST ONE HEADENING COMMONOMER SELECTED FROMTHE GROUPE CONSISTING OF THE LOWER ALKYL METHACRYLATES IN WHICH THE ALKYL GROUP HAS 1 TO 4 CARBON ATOMS, STYRENE, ACRYLONITRILE, METHACRYLONITRILE VINYL ACETATE, VINYL CHLORIDE AND VINYLIDENE CHLORIDE, THE ADDITION POLYMER HAVING A MODULUS OF RIGIDITY TRANSITION TEMPERATURE VALUE IN THE RANG OF 45*C., TO 30*C. DETERMONED AT 300KG./CM2 AND THE PROPORTIONS BETWEEN (1) AND (2) BEING FROM 10 TO 35 PARTS BY WEIGHT OF THE FORMER TO 90 TO 65 PARTS OF THE LATTER.