Waterborne lubricant for the cold plastic working of metals
AssigneeHenkel Corporation
InventorsKazuhiro Ishikura, Kazutomo Miyafuji, Kenji Karube
Life of this patent
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Abstract
A waterborne lubricant for the cold plastic working of metals that contains alkali metal salts of dimer(s) and/or trimer(s) of unsaturated fatty acids with from 10 to 24 carbon atoms per molecule has a lubrication performance at least as good as that of prior lubricants, even at generally lower lubricating film weights, has a long bath life, and generates little dust during cold plastic working operations. Even as little as 5% of these salts of dimer(s) and/or trimer(s) of unsaturated fatty acids, when mixed with conventional alkali metal salts of saturated fatty acids with from 10-24 carbon atoms per molecule, can provide these benefits.
Claims24
A waterborne lubricant for cold plastic working of metals, said waterborne lubricant comprising water and:
- (A) an amount of a component selected from the group consisting of an alkali metal salt of (1) at least one organic acid the molecules of which both (1.1) contain at least two carboxyl groups and (1.2) are vinylic addition dimers of carboxylic acids the molecules of which have from 10 to 24 carbon atoms and at least one double bond and (2) at least one organic acid the molecules of which both (2.1) contain at least three carboxyl groups and (2.2) are vinylic addition trimers of carboxylic acids the molecules of which have from 10 to 24 carbon atoms each and at least one double bond each.
Dependencies are inferred from the claim text.