Water active metalworking lubricant compositions
AssigneeCincinnati-Vulcan Company
InventorRobert J. Sturwold
Life of this patent
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Abstract
This invention relates to water active metalworking lubricant compositions, particularly for the cold rolling of aluminum and other sensitive non-ferrous metals and alloys. Water emulsions or solutions of the lubricant composition provide good lubricity and anti-wear properties and furthermore, prevent water staining of aluminum. The water active lubricant composition contains (a) an alkanolamine salt of a C.sub.36 dimer or C.sub.54 trimer acid, (b) an aliphatic monoalcohol or monocarboxylic acid and (c) an alkyl ester of a fatty acid.
Claims12
A water active metalworking lubricant composition containing
- (a) an alkanolamine salt of a polymeric fatty acid selected from the group consisting of a C.sub.36 dimer acid, a C.sub.54 trimer acid and mixtures thereof,
- (b) an organic compound selected from the group consisting of an aliphatic monoalcohol and an aliphatic monocarboxylic acid, and
- (c) an alkyl ester of a fatty acid.
A water active rolling composition for the prevention of water staining in metal sheets of non-ferrous metals such as aluminum or aluminum alloys containing
- (a) an alkanolamine salt of a polymeric fatty acid selected from the group consisting of a C.sub.36 dimer acid, a C.sub.54 trimer acid and mixtures thereof, wherein said alkanolamine is selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine and triisopropanolamine,
- (b) a fatty alcohol or a fatty acid containing from about 12 to about 22 carbon atoms,
- (c) a lower alkyl ester of a fatty acid containing from about 12 to about 22 carbon atoms.
A method for working a metal which comprises applying to the surface of the metal an effective amount of an aqueous lubricant composition containing water and a water active lubricant from about 1 to about 10% by weight containing
- (a) from about 30 to about 60% by weight of a polymeric fatty acid selected from the group consisting of a C.sub.36 dibasic acid, a C.sub.54 tribasic acid and mixtures thereof,
- (b) from about 20% to 40% by weight of a fatty alcohol or fatty acid having from about 12 to about 22 carbon atoms, and
- (c) from about 20% to about 40% by weight of a lower alkyl ester of a fatty acid having from about 12 to about 22 carbon atoms.
Dependencies are inferred from the claim text.