Solid Pesticidal Formulation Water Dispersibility
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Solution Overview
Problem
Solid pesticidal formulations face challenges in achieving favorable dispersibility in water, which is essential for effective application as spray liquids.
Innovation Solution
A solid pesticidal composition comprising a compound represented by formula (I), an organic solvent capable of dissolving the compound, a surfactant, and a solid carrier, where the organic solvent and surfactant are specifically chosen to enhance dispersibility, with the compound dissolved in the solvent and the surfactant present in optimal amounts to ensure efficient mixing with water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If solid pesticidal formulations are used, then storage and handling are convenient, but dispersibility in water is poor
Solution Approach 1:
The patent creates a composite formulation system combining the pesticidal compound with multiple functional components: a specific organic solvent (dissolving 1g or more per 100g at 0°C), a surfactant (1g or more dissolved per 100g of solvent at 25°C), and a solid carrier. This composite structure maintains the solid state for easy handling while incorporating water-soluble and dispersible components to achieve favorable dispersibility when mixed with water.
Solution Approach 2:
The patent specifies precise parameter ranges to optimize the balance between solid state stability and water dispersibility. The organic solvent must dissolve 1g or more of the compound per 100g at 0°C, and the surfactant must dissolve 1g or more per 100g of solvent at 25°C. These parameter specifications ensure the formulation remains solid for convenient handling while achieving the required dispersibility performance.
2Stability of the object's composition
If the compound is dissolved in organic solvent, then homogeneity is improved, but water solubility is reduced
Solution Approach 1:
The patent uses a surfactant as an intermediary substance that bridges the organic solvent-containing formulation and water. The surfactant (present at 1g or more dissolved per 100g of organic solvent at 25°C) reduces surface tension and enables the organic solvent-based compound to disperse effectively in water, thus maintaining homogeneity while achieving water solubility.
Solution Approach 2:
The formulation creates a composite system where the organic solvent dissolves the compound for homogeneity, while the surfactant and solid carrier components work together to enable water dispersibility. This multi-component composite resolves the contradiction between maintaining homogeneous mixture and achieving water solubility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition achieves favorable dispersibility in water, allowing for effective preparation of spray liquids and improved herbicidal efficacy when applied.
Implementation Method 1
an organic solvent, which is a solvent capable of dissolving 1 g or more of the compound represented by formula (I) per 100 g of the organic solvent at a temperature of 0° C.
Implementation Method 2
a surfactant, wherein an amount of the surfactant dissolved in 100 g of the organic solvent at a temperature of 25° C. is 1 g or more
Data Source
AI summary
A solid pesticidal composition contains a compound represented by the following formula (I), an organic solvent, a surfactant and a solid carrier. The organic solvent is a solvent capable of dissolving 1 g or more of the compound represented by the following formula (I) per 100 g of the organic solvent at a temperature of 0° C. The amount of the surfactant dissolved in 100 g of the organic solvent at a temperature of 25° C. is 1 g or more.