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US 11,140,900 B2Granted
Aqueous herbicidal concentrates
AssigneeMonsanto Technology LLC
InventorDavid Z. Becher
Life of this patent
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Abstract
Herbicidal concentrate compositions containing a combination of herbicides are provided. In particular, the present invention relates to aqueous herbicidal concentrate compositions containing a particulate encapsulated acetanilide herbicide and a protoporphyrinogen oxidase inhibitor (PPO inhibitor).
Claims21
An aqueous herbicidal concentrate composition comprising:
- acetochlor;
- fomesafen in the form of a water-soluble salt;
- a pseudoplastic thickener comprising a water-soluble gum selected from the group consisting of guar gum, xanthan gum, and a combination thereof in a concentration of from about 800 ppm to about 1500 ppm;
- wherein a first portion of the acetochlor is present in microcapsules comprising a core material comprising the first portion of the acetochlor and a shell wall material encapsulating the core material;
- and
- an aqueous phase comprising a second, unencapsulated portion of the acetochlor and the fomesafen;
- wherein the total acetochlor concentration in the composition on an active ingredient basis is at least 25 wt. %;
- the weight ratio of total acetochlor to fomesafen on an acid equivalence (a.e.) basis is from about 1:10 to 10:1;
- and the concentration of the second, unencapsulated portion of the acetochlor in the aqueous phase is from about 0.5% to about 10% of the total weight of acetochlor.
6 more elements
Dependencies are inferred from the claim text.