Structuring Agents and Emulsifiers for Agricultural Oil-Based Formulations
First Claim
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1. An agricultural oil-based suspension formulation comprising an active ingredient suspended in finely divided form in an oil;
- and at least one surfactant selected from a polyalkylene glycol-fatty acid condensate or a polyalkylene glycolether fatty acid condensate formed from a reaction between a compound having Structure (1) and a compound having Structure (2);
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Abstract
An agricultural oil-based suspension formulation comprising an active ingredient suspended in finely divided form in an oil; and at least one surfactant selected from a polyalkylene glycol-fatty acid condensate or a polyalkylene glycolether fatty acid condensate formed from a reaction between a compound having Structure (1) and a compound having Structure (2):
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- wherein
- R1=H or a C1-C30 alkyl radical;
- A and B are ethylene or propylene groups in succession or random;
- n=0 or >1; and
- m=0 or >1,
- and wherein
- n+m>34;
- R2=C8-C30 alkyl or alkylene radical (branched or linear); and
- x=>1.
- wherein
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Citations
20 Claims
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1. An agricultural oil-based suspension formulation comprising an active ingredient suspended in finely divided form in an oil;
- and at least one surfactant selected from a polyalkylene glycol-fatty acid condensate or a polyalkylene glycolether fatty acid condensate formed from a reaction between a compound having Structure (1) and a compound having Structure (2);
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- and at least one surfactant selected from a polyalkylene glycol-fatty acid condensate or a polyalkylene glycolether fatty acid condensate formed from a reaction between a compound having Structure (1) and a compound having Structure (2);
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16. A method of preparing an OD formulation comprising an active ingredient comprising the steps of:
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a) preparing a surfactant solution premix by combining at least one surfactant selected from a polyalkylene glycol-fatty acid condensate or a polyalkylene glycolether fatty acid condensate of the present invention with a surfactant and an oil to give a liquid; b) dispersing the active ingredient in the surfactant solution by either stirring or high shear mixing; c) milling the active ingredient dispersion to achieve a particle size average in the range 1-12 microns; d) adding surfactant emulsifying agents; and e) optionally adjusting the final concentration of active ingredient content by adding additional oil and other required ingredients, wherein steps a) to d) are carried out in any order. - View Dependent Claims (17, 18, 19, 20)
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Specification