Drier systems and surface-coating compositions containing same
AssigneeTenneco Chemicals, Inc.
InventorsMartin L. Feldman, Marvin Landau
Life of this patent
Estimating the term…
Abstract
Drier systems for surface-coating compositions that contain oxidizable, organic, film-forming resinous vehicles and that air dry in 24 hours or less at temperatures not higher than 50.degree. F. and at relative humidities above 50% comprise metal salt solutions in an inert solvent that contain an active drier metal, such as cobalt, and an auxiliary drier metal that comprises bismuth.
Claims16
A drier system for surface-coating compositions that contain oxidizable, organic, film-forming resinous vehicles and that air dry in 24 hours or less at temperatures not higher than 50.degree. F. and relative humidities above 50% that comprises a metal salt component containing
- (a) a minor amount of cobalt and
- (b) a major amount of auxiliary drier metal that contains 10% to 100% by weight of bismuth and 0 to 90% by weight of a metal selected from the group consisting of calcium, barium, zinc, zirconium, lead, and mixtures thereof, said cobalt and auxiliary drier metal being present as salts of acids selected from the group consisting of aliphatic monocarboxylic acids having 6 to 22 carbon atoms, cycloaliphatic monocarboxylic acids having 6 to 10 carbon atoms, and mixtures thereof;
- and
- an inert, non-polar organic solvent.
A surface-coating composition that air dries in 24 hours or less at temperatures not higher than 50.degree. F. and relative humidities above 50% that comprises an oxidizable, organic, film-forming resinous vehicle;
- 0.02% to 0.2%, based on the weight of vehicle solids, of cobalt;
- and 0.05% to 0.50%, based on the weight of vehicle solids, of auxiliary drier metal that contains 10% to 100% by weight of bismuth and 0 to 90% by weight of a metal selected from the group consisting of calcium, barium, zinc, zirconium, lead, and mixtures thereof, said cobalt and auxiliary drier metal being present in the surface-coating composition as salts of acids selected from the group consisting of aliphatic monocarboxylic acids having 6 to 22 carbon atoms, cycloaliphatic monocarboxylic acids having 6 to 10 carbon atoms, and mixtures thereof, and said composition containing a larger percentage by weight of said auxiliary drier metal than of cobalt.
A surface-coating composition that air dried in 24 hours or less at temperatures not higher than 50.degree. F. and relative humidities above 50% that comprises an oxidizable, organic, film-forming resinous vehicle and 0.02% to 5%, based on the weight of said vehicle, of a drier system that contains 1% to 16% by weight of cobalt and 6% to 36% by weight of auxiliary drier metal that contains 10% to 100% by weight of bismuth and 0 to 90% by weight of a metal selected from the group consisting of calcium, barium, zinc, zirconium, lead, and mixtures thereof, said cobalt and auxiliary drier metal being present in the drier system as salts of acids selected from the group consisting of aliphatic monocarboxylic acids having 6 to 22 carbon atoms, cycloaliphatic monocarboxylic acids having 6 to 10 carbon atoms, and mixtures thereof, and said drier system containing a larger percentage by weight of said auxiliary drier metal than of cobalt.
An auxiliary drier metal composition for use in drier systems that is a solution of a metal salt component in an inert, non-polar organic solvent, said metal salt component containing at least one bismuth salt and at least one calcium salt of acids selected from the group consisting of aliphatic monocarboxylic acids having 6 to 22 carbon atoms, cycloaliphatic monocarboxylic acids having 6 to 10 carbon atoms, and mixtures thereof, said composition containing 10% to 18% by weight of bismuth and 1% to 8% by weight of calcium.
Dependencies are inferred from the claim text.