Alkylformamide surfactants
AssigneeAir Products and Chemicals, Inc.
InventorsKevin Rodney Lassila, John Anthony Marsella
Life of this patent
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Abstract
This invention provides water-based compositions, particularly coating, ink, and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain alkylformamide compounds of the structure where R is a C5 to C11 alkyl group.
Claims21
In a method for coating a surface which comprises applying a water-based protective or decorative organic coating, ink or agricultural composition to a surface to partially or fully coat the surface, the composition containing an effective amount of a surfactant for reducing the dynamic surface tension of the composition, the improvement which comprises employing as the surfactant an alkylformamide of the structure
- where R is a C5 to C11 alkyl group, provided the organic compound is not an azole derivative fungicide.
In an aqueous protective or decorative organic coating, ink or agricultural composition 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, or a plant growth modifying agent and an effective amount of an alkylformamide for reducing the dynamic surface tension of the composition, the alkylformamide having a structure according to the formula:
- where R is a C5 to C11 alkyl group, provided the herbicide is not an azole derivative fungicide.
In an aqueous organic coating composition of 30 to 80 wt % components, which components comprise
- 0 to 50 wt % pigment dispersant, grind resin or mixtures thereof;
- 0 to 80 wt % coloring pigment, extender pigment, anti-corrosive pigment other pigment types or mixtures thereof;
- 5 to 99.9 wt % water-borne, water-dispersible or water-soluble resin or mixtures thereof;
- 0 to 30 wt % slip additive, antimicrobial agent, processing aid, defoamer or mixtures thereof;
- 0 to 50 wt % coalescing or other solvents;
- 0.01 to 10 wt % surfactant, wetting agent, flow and leveling agents or mixtures thereof;
- the improvement which comprises 0.01 to 5 wt % alkylformamide having a structure according to the formula:
- where R is a C5 to C11 alkyl group.
In an aqueous ink composition of 20 to 60 wt % components, which components comprise
- 1 to 50 wt % pigment
- 0 to 50 wt % pigment dispersant, grind resin or mixtures thereof;
- 0 to 50 wt % clay base in a resin solution vehicle;
- 5 to 99 wt % water-borne, water-dispersible or water-soluble resin or mixtures thereof;
- 0 to 30 wt % coalescing solvent;
- 0.01 to 10 wt % processing aid, defoamer, solubilizing agent or mixtures thereof;
- 0.01 to 10 wt % surfactant, wetting agent or mixtures thereof;
- the improvement which comprises 0.01 to 5 wt % alkylformamide having a structure according to the formula:
- where R is a C5 to C11 alkyl group.
In an aqueous agricultural composition of 0.1 to 80 wt % components, which components comprise
- 1 to 50 wt % a herbicide for chlorophyll-containing plants, insecticide, plant growth modifying agent or mixtures thereof;
- 0 to 5 wt % dye;
- 0 to 20 wt % thickener, stabilizer, cosurfactant, gel inhibitor, defoaming agent or mixtures thereof;
- 0 to 25 wt % antifreeze;
- 0 to 50 wt % coalescing or other solvents;
- 0.01 to 10 wt % surfactant;
- the improvement which comprises 0.1 to 50 wt % alkylformamide having a structure according to the formula:
- where R is a C5 to C11 alkyl group, provided the herbicide is not an azole derivative fungicide.
Dependencies are inferred from the claim text.