Catalyzed epoxide resin/epoxidized hydrocarbon drying oil gloss enamels and metal articles coated therewith

Claim 1

AN IMPROVED COATING COMPOSITION, THE VEHICLE OF WHICH CONSISTS ESSENTIALLY OF A HOMOGENEOUS ORGANIC SOLVENT SOLUTION OF A BLEND OF THE FOLLOWING FILM-FORMING MATERIALS: (A) POLYMERIC POLYETHER RESINOUS DERIVATIVES OF POLYHYDRIC PHENOLS HAVING ALTERNATING AROMATIC AND ALIPHATIC NUCLEI UNITED THROUGH ETHER OXYGEN, HAVING TERMINAL 1,2 EPOXY GROUPS AND BEING FREE OF FUNCTIONAL GROUPS OTHER THAN EPOXY AND HYDROXYL GROUPS, SAID RESINOUS DERIVATIVES HAVING AN EPOXY EQUIVALENT WEIGHT BETWEEN ABOUT 170 AND 3000 AND AN HYDROXYL EQUIVALENT WEIGHT BETWEEN ABOUT 85 AND 200; AND (B) FROM ABOUT 1% TO ABOUT 10%, BY WEIGHT ON THE TOTAL FILM-FORMING SOLIDS IN THE VEHICLE, OF EPOXIDIZED, MASS-POLYMERIZED, HYDROCARBON DRYING OIL COMPOSED ESSENTIALLY IN COMBINED FORM OF 60-100% BY WEIGHT OF CONJUGATED DIOLEFIN HAVING 4 TO 6 CARBONS PER MOLECULE, BALANCE MONOCYCLIC VINYL AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF STYRENE AND THE 1-2 CARBON RING-SUBSTITUTED ALKYLATED STYRENES, SAID DRYING OIL HAVING BEEN EPOXIDIZED SUBSEQUENT TO ITS POLYMERIZATION TO AN OXIRANE OXYGEN CONTENT BETWEEN ABOUT 2% AND 7.5% BY WEIGHT; SAID COATING COMPOSITION BEING CURABLE TO A PROTECTIVE FILM WHEN MIXED WITH FROM ABOUT 4% TO 50%, BY WEIGHT, OF POLYFUNCTONAL AMINES WHICH CONTAIN NO GROUPS OTHER THAN AMINO GROUPS REACTIVE WITH EPOXY GROUPS AND WHICH ARE SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC, CYCLOALIPHATIC AND AROMATIC POLYAMINES.