Herbicidal compositions comprising specific surfactants
The composition of a water-soluble herbicide, a water-insoluble herbicide, and a specific surfactant mixture addresses the stability and viscosity challenges in pesticide emulsions, achieving effective stability and application characteristics.
Patent Information
- Application Number
- PCT/EP2024/076016
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-21
- Filing Date
- 2024-09-18
- Publication Date
- 2025-03-27
AI Technical Summary
Existing pesticide emulsions face challenges in maintaining stability and viscosity, especially when high ionic strength ingredients like glufosinate ammonium salt are present, leading to physical instability issues such as creaming, oil layer separation, and sedimentation.
A composition comprising a water-soluble herbicide, a water-insoluble herbicide, and a specific surfactant mixture consisting of non-ionic surfactants like oxyalkylenated fatty alcohols, polycondensates of ethylene oxide and propylene oxide, and phosphate ester surfactants, which stabilizes the oil-in-water emulsion without the need for additional rheological agents.
The composition achieves good stability on storage at various temperatures, maintains suitable emulsion characteristics upon dilution, and exhibits an adequate viscosity profile, ensuring effective application and biological efficacy.