Alkoxylated phosphate esters for lubricant compositions
AssigneeRhodia Operations
InventorsClaude-Emmanuel Hedoire, Ramona Gironda
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Abstract
The present invention concerns a composition suitable for working and shaping metals, in particular providing a lubricating effect, including polymers of the following formula: [R—O(—CH(CH3)—CH2O—)n(CH2—CH2O—)p—]1+xP(═O)(OH)2-x in which: R is a linear or branched, preferably linear, saturated or unsaturated hydrocarbon group, comprising between 8 and 12 carbon atoms; n is a number, which may or may not be an integer, between 6 and 20; p is a number, which may or may not be an integer, between 4 and 25; and x is a number between 0 and 1, and in particular between 0.1 and 0.9.
Claims16
A lubricating formulation, comprising an emulsion and a polymer composition comprising polymers of formula (I) below:
- [R—O(—CH(CH3)—CH2O—)n(CH2—CH2O—)p—]1+xP(═O)(OH)2-x (I)
- wherein:
- R is a linear or branched, saturated or unsaturated hydrocarbon-based group comprising from 8 to 12 carbon atoms
- n is a number, integer or not, between 6.5 and 20
- p is a number, integer or not, between 4 and 25
- x is a number between 0 and 1
- wherein the emulsion has an emulsion stability index greater than 95.
Dependencies are inferred from the claim text.