Aqueous lubricant for metalworking
AssigneeTotalenergies Onetech
InventorsVeronique Verroul, Richard Frelechoux, Mickael Ponsardin
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Abstract
The invention relates to a lubricant composition comprising water and: from 1 to 60% by weight of poly(alkylene glycol), from 0.5 to 30% by weight of polyetheramine, relative to the total weight of the lubricating composition. The invention further relates to the use of said lubricating composition as a fluid for working metals, the metals being preferably chosen from steel and aluminum.
Claims18
A lubricating composition comprising water and:
- from 1 to 60% by weight of poly(alkylene glycol),
- from 0.5 to 30% by weight of polyetheramine,
- relative to the total weight of the lubricating composition,
- said poly(alkylene glycol) being chosen from block copolymers comprising ethylene oxide units and propylene oxide units,
- said polyetheramine being chosen from diamines comprising ethylene oxide units and/or propylene oxide units, the amines of the polyetheramine being primary amines.
A method for improving the lubricating properties during metalworking with a lubricating composition, the method comprising a step of adding from 0.5 to 30% by weight of polyetheramines in a lubricating composition comprising water and from 1 to 60% by weight of poly(alkylene glycol), relative to the total weight of the lubricating composition, said poly(alkylene glycol)(s) being selected from block copolymers comprising ethylene oxide units and propylene oxide units, said polyetheramine being chosen from diamines comprising ethylene oxide units and/or propylene oxide units, the amines of the polyetheramine being primary amines.
Dependencies are inferred from the claim text.