Tartaric acid diesters as biodegradable surfactants
AssigneeAir Products and Chemicals, Inc.
InventorsCaroline Sassano Slone, Kevin Rodney Lassila
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Abstract
This invention provides water-based compositions which are essentially free of hydrocarbon solvents, particularly coating, ink, fountain solution, adhesive and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain tartrate diester compounds of the structure: where R1 and R2 are C4 to C6 alkyl groups.
Claims24
An aqueous composition which is essentially free of hydrocarbon solvent comprising in water an inorganic compound which is a mineral ore or a pigment or an organic compound which is a pigment, a polymerizable monomer, an oligomeric resin, a polymeric resin, a detergent, a herbicide, an insecticide, a fungicide, or a plant growth modifying agent and an effective amount of a tartrate diester for reducing the dynamic surface tension of the composition, the tartrate diester having the structure:
- where R1 and R2 are a C5 to C6 alkyl group.
In an aqueous composition which is essentially free of hydrocarbon solvent and is selected from the group consisting of aqueous organic protective or decorative coating, ink, adhesive, fountain solution and agricultural compositions and contains an effective amount of a tartrate diester for reducing the dynamic surface tension of the composition, the tartrate diester having the structure:
- where R1 and R2 are a C5 to C6 alkyl group.
In an aqueous composition which is essentially free of hydrocarbon solvent and is selected from the group consisting of aqueous adhesive, fountain solution and agricultural compositions and contains an effective amount of a tartrate diester for reducing the dynamic surface tension of the composition, the tartrate diester having the structure:
- where R1 and R2 are a C4 alkyl group.
In an aqueous organic protective or decorative coating composition which comprises an aqueous medium which is at least 90 wt % water and is essentially free of hydrocarbon solvent and contains an effective amount of a tartrate diester for reducing the dynamic surface tension of the composition, the tartrate diester having the structure:
- where R1 and R2 are a C4 alkyl group.
Dependencies are inferred from the claim text.