High-Concentration Water-Soluble Granules for Tetramic Acid Derivatives
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Solution Overview
Problem
Existing solid formulations of tetramic acid derivatives, such as water-soluble granules, suffer from low active ingredient concentration, leading to large volumes for transport and storage, and risk of oversaturation and precipitation, which affects storage stability and causes blockages in spray equipment and irrigation systems.
Innovation Solution
Development of rapidly soluble, highly concentrated water-soluble granules (SG) formulations comprising tetramic acid derivatives, inorganic bases, dispersants, wetting agents, and water-soluble fillers, which are designed to be residue-free and reduce soil salt burden, while acting as fertilizers or nutrients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If highly concentrated solutions are used to reduce transport and storage volumes, then the concentration of active ingredient is improved, but precipitation and oversaturation occur leading to storage instability
Solution Approach 1:
The patent changes the physical-chemical parameters of the formulation by incorporating specific solubilizing agents and surfactants that allow the active ingredient to remain in solution at high concentrations without precipitating. The formulation adjusts pH, ionic strength, and molecular interactions to maintain stability despite high active ingredient content.
Solution Approach 2:
The patent creates a composite formulation system combining the tetramic acid derivative active ingredient with multiple auxiliary substances including solubilizing agents, surfactants, and stabilizers. This composite system allows the active ingredient to be highly concentrated while the other components prevent precipitation and maintain storage stability.
2Quantity of substance
If water-insoluble substances are used in formulations, then the active ingredient concentration can be increased, but blockage of hoses and nozzles occurs in spray equipment and irrigation systems
Solution Approach 1:
The patent changes the solubility parameters of the formulation by using solubilizing agents and surfactants that keep the active ingredient in true solution rather than suspension. This ensures the formulation flows freely through low-diameter hoses and nozzles without blockages while maintaining high active ingredient concentration.
Solution Approach 2:
The patent introduces solubilizing agents and surfactants as intermediary substances that mediate between the water-soluble requirement for equipment compatibility and the water-insoluble nature of many high-concentration active ingredients. These intermediaries form molecular complexes that remain soluble and flowable.
3Quantity of substance
If large volumes are used to achieve adequate active ingredient delivery, then the active ingredient concentration in application is improved, but transport and storage volumes increase
Solution Approach 1:
The patent changes the concentration parameter of the formulation to exceed 50% active ingredient content, which is more than double the typical concentration of conventional formulations. This allows the same amount of active ingredient to be delivered in less than half the volume, significantly reducing transport and storage requirements.
Solution Approach 2:
The patent develops a stable composite formulation system that can accommodate ultra-high concentrations of active ingredient ( >50%) without precipitation or instability. The composite nature of the formulation with multiple compatible components enables this extreme concentration while maintaining physical and chemical stability.
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 new formulations achieve high active ingredient content (>50%), ensuring efficient use and reducing storage and transport volumes, while maintaining stability and preventing blockages, thus enhancing application efficacy and reducing environmental impact.
Implementation Method 1
c. at least one dispersant, preferably selected from the group of the lignosulfonates and salts thereof
Implementation Method 2
d. optionally at least one wetting agent
Data Source
AI summary
The invention relates to solid formulations (especially water-soluble granules (SG)) of insecticide active tetramic acid derivatives, to a process for production thereof and to the use thereof for application of the active ingredients present, especially for drip & drench applications.