Coating oil compositions
AssigneeCincinnati-Vulcan Company
InventorRobert J. Sturwold
Life of this patent
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Abstract
Useful oil compositions for coating ferrous and non-ferrous metals are provided. The coating oils are blends of a petroleum sulfonate, polymeric fatty acid and hydrocarbon oil.
Claims15
A coating oil composition consisting of (a) 1 to 15% polymeric fatty acid obtained from the polymerization of unsaturated C.sub.16-20 monocarboxylic acids and and containing at least 60% C.sub.36 dimer acid, (b) 1 to 15% oil-soluble Group IA alkali metal petroleum sulfonate and (c) 70 to 98% inert and substantially wax-free naphthenic or paraffinic hydrocarbon oil having a 100.degree. F. kinematic viscosity from 0.5 to 6 centistokes.
A method of protecting a metal surface which comprises treating a metal with a coating oil having a 100.degree. F. kinematic viscosity of less than 8 centistokes and consisting of (a) 1 to 15% polymeric fatty acid obtained from the polymerization of unsaturated C.sub.16-20 monocarboxylic acids and containing at least 60% C.sub.36 dimer acid, (b) 1 to 15% oil-soluble Group IA alkali metal petroleum sulfonate and (c) 70 to 98% inert and substantially wax-free naphthenic or paraffinic hydrocarbon oil having a 100.degree. F. kinematic viscosity of 0.5 to 6 centistokes so as to obtain a continuous protective coating on the exposed metal surfaces.
A metal article having applied to its surface a coating oil consisting of (a) 1 to 15% polymeric fatty acid obtained from the polymerization of unsaturated C.sub.16-20 monocarboxylic acids and containing at least 60% C.sub.36 dimer acid, (b) 1 to 15% oil-soluble Group IA alkali metal petroleum sulfonate and (c) 70 to 98% inert and substantially wax-free naphthenic or paraffinic hydrocarbon oil having a 100.degree. F. kinematic viscosity from 0.5 to 6 centistokes.
Dependencies are inferred from the claim text.