Pesticide formulations with substituted biopolymers and organic polymers for improving residual activity, droplet size, adherence and rainfastness on leaves and reduction in soil leaching
First Claim
1. A pesticidal formulation, comprising a mixture of:
- a single polymer or a mixture of polymers; and
an active pesticidal ingredient.
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Abstract
Functionalized polymers are mixed with pesticides to form semi-stable complexes with desirable field properties: reduced leaching in soil, improved leaf retention (rainfastness), selective unloading to roots and convenient packaging and application. Pesticides that may be so complexed include herbicides, insecticides (including compounds controlling non-insect arthropods and nematodes), bacteriocides, rodenticides, and fungicides. Polymers with which they may be complexed include derivatives of carbohydrates, amides, imines, alkanes, vinyls, styrenes or glycols. The polymers may be functionalized with chemical groups that exhibit ionic (amines, carboxyls), hydrophobic, complexing (e.g. metal chelating) and ligand binding interactions. The variously functionalized polymers may be mixed, grafted, or fused to obtain optimal properties. The polymer/pesticide formulations may be applied as granules, as suspensions or solutions in sprays, as foams, or as coats for seeds and fertilizers. The formulations may be applied to foliage, soil, irrigation water, construction materials (plastics, wood), seeding materials, grains, and buildings.
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Citations
27 Claims
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1. A pesticidal formulation, comprising a mixture of:
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a single polymer or a mixture of polymers; and
an active pesticidal ingredient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A pesticidal formulation, comprising a mixture of:
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a mixture comprising two polymers; and
an active pesticidal ingredient. - View Dependent Claims (26)
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27. A pesticidal formulation, comprising a mixture of
a polymer; - and
an active pesticidal ingredient, wherein the weight ratio of said polymer to said active pesticide is not greater than 4;
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Specification