Citric acid tri-alkylamide surfactants
AssigneeAir Products and Chemicals, Inc.
InventorsCaroline Sassano Slone, Kevin Rodney Lassila, Ingrid Kristine Meier
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Abstract
This invention provides water-based compositions which are essentially free of hydrocarbon solvents, particularly coating, ink, fountain solution, adhesive, agricultural and electronics cleaning compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain tri-alkylamides of citric acid of the structure where R1, R2 and R3 are independently C1 to C18 alkyl groups.
Claims10
In a method for applying a coating of a water-based composition to a surface to partially or fully coat the surface and drying the coating, the composition containing an inorganic or organic compound and an effective amount of a surfactant for reducing the dynamic surface tension of the composition, the improvement which comprises employing as the surfactant a tri-alkylamide of citric acid of the formula:
- where R1, R2 and R3 are independently C1 to C18 alkyl groups.
Dependencies are inferred from the claim text.