Polymeric Solubilizer for Insecticide Soil Mobility
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Solution Overview
Problem
Current methods for increasing the soil mobility of sparingly soluble insecticides, such as those used for controlling termites, are labor-intensive and inefficient, as they rely largely on mechanical means and existing formulation aids that only marginally improve soil penetration.
Innovation Solution
The use of polymeric solubilizers that significantly enhance the water solubility of insecticides, allowing for deeper soil penetration with reduced labor, by forming combinations where the insecticide's solubility in a 1% aqueous solution of the polymeric solubilizer is at least forty times higher than in pure water, thereby improving soil mobility and biological activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If mechanical methods (trench digging, pressure spraying) are used to transfer active ingredients into deeper soil layers, then soil mobility is improved, but labor and equipment requirements increase significantly
Solution Approach 1:
The patent introduces formulation aids (surfactants, adjuvants, polymers) as intermediary substances that modify the interaction between the insecticide and soil. These intermediaries reduce soil absorption and enhance mobility, allowing the active ingredient to penetrate deeper soil layers without requiring mechanical intervention such as trench digging or pressure spraying.
Solution Approach 2:
The patent modifies key parameters of the insecticide formulation by adjusting the soil absorption coefficient (Ko/c) through the addition of formulation aids. By changing the chemical and physical parameters of the formulation (surface activity, solubility, adhesion), the insecticide achieves enhanced soil mobility and deeper penetration without increasing labor or equipment requirements.
2Length of moving object
If existing formulation aids are used to increase soil mobility, then penetration is improved marginally, but the complexity of the formulation increases
Solution Approach 1:
The patent identifies formulation aids that perform multiple functions simultaneously: they not only enhance soil mobility and reduce absorption but also improve water solubility, maintain formulation stability, and enhance biological activity. This multi-functionality reduces the need for multiple separate additives, thereby limiting the increase in formulation complexity while achieving marginal to significant improvements in penetration depth.
3Reliability
If the soil absorption coefficient Ko/c is high, then the insecticide binds strongly to soil, but soil mobility and penetration into deeper layers is reduced
Solution Approach 1:
The patent directly addresses the soil absorption coefficient (Ko/c) as a key parameter to be modified. By incorporating formulation aids with specific surface activity and chemical properties, the patent changes the effective Ko/c value, reducing the strong binding between the insecticide and soil particles. This parameter change enables the active ingredient to remain more mobile in the soil solution and penetrate deeper layers while maintaining sufficient binding for sustained control.
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
This approach leads to a substantial increase in the soil mobility and biological effectiveness of sparingly soluble insecticides, with improved physical stability of formulations and spray liquors, enabling more efficient control of soil-dwelling pests like termites.
Implementation Method 1
the active ingredient in a 1% by weight aqueous solution of the polymeric solubilizer at 25° C. and 1.01325 bar has a solubility at least forty times higher than under the same conditions in pure water
Data Source
AI summary
What is described is use of a polymeric solubilizer for increasing the soil mobility of a sparingly soluble insecticide, said polymeric solubilizer having the property that the active insecticidal ingredient in a 1% by weight aqueous solution of the polymeric solubilizer at 25° C. and 1.01325 bar has a solubility at least forty times higher than under the same conditions in pure water, and wherein the active ingredient:solubilizer weight ratio is ≦1.