Suspoemulsion containing pendimethalin and pyroxasulfone as well as preparation method and application thereof
By optimizing the formulation and preparation method of pendimethalin and sulfonylpyrazole suspension emulsion, the problems of environmentally unfriendly solvent use and unstable suspension emulsion in the existing technology have been solved, realizing the preparation of a highly efficient and environmentally friendly suspension emulsion.
Patent Information
- Application Number
- CN202511972485.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-25
- Publication Date
- 2026-03-31
AI Technical Summary
Existing pendimethalin emulsifiable concentrate formulations use aromatic solvents, which are detrimental to the environment. Sulfonazole has low solubility in aromatic solvents, and existing suspension emulsion preparation processes are unstable, making it difficult to meet the requirements of industrial scale-up.
A suspension emulsion formulation with a weight ratio of pendimethalin to sulfonylpyrazole of 1:15 to 15:1 was used, with the addition of auxiliary components such as emulsifiers and dispersants. The suspension emulsion was prepared by high-speed shearing and grinding with a sand mill to ensure the stability of the composition.
It improves herbicidal activity, reduces pesticide dosage, delays weed resistance, achieves stability and industrial-scale preparation of suspension emulsions, and has environmental benefits.