Cyprodinil Fungicide Stability via Unsaturated Fatty Acid Mediator
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Solution Overview
Problem
Liquid formulations of cyprodinil, a fungicide, exhibit limited storage stability, especially in high concentration forms, which affects production, transport, and storage costs, and requires higher water content for aqueous solutions due to its water-insolubility, leading to reduced efficacy and handling issues.
Innovation Solution
Incorporating an unsaturated C18-fatty acid, such as oleic acid, linoleic acid, or linolenic acid, into cyprodinil-based fungicidal compositions enhances storage stability, allowing for higher concentration formulations with reduced water content, improving handling and application efficiency while maintaining phytopathogen control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If liquid formulations of cyprodinil are prepared with high concentrations, then production, transport and storage costs are reduced, but storage stability deteriorates
Solution Approach 1:
An unsaturated C18-fatty acid (oleic acid, linoleic acid, or linolenic acid) is introduced as an intermediary substance to mediate between cyprodinil and the aqueous phase. This fatty acid acts as a solubilizing agent that enables high concentrations of cyprodinil (up to 50% w/v) to be maintained in liquid formulations while preserving storage stability, resolving the contradiction between concentration and stability
Solution Approach 2:
The formulation creates a composite system combining cyprodinil, unsaturated C18-fatty acid, and water in specific ratios. This composite approach allows the incompatible components (high concentration cyprodinil and aqueous phase) to coexist stably, achieving both high productivity and reliability simultaneously
2Ease of operation
If aqueous concentrate formulations are used for seed treatment, then ease of application is improved, but storage stability deteriorates due to water-insolubility of cyprodinil
Solution Approach 1:
The unsaturated C18-fatty acid serves as a mediator that enables cyprodinil to be effectively distributed in aqueous formulations for seed treatment applications. It allows the formulation to maintain water-based properties for ease of application while preventing precipitation and instability that would otherwise occur due to cyprodinil's water-insolubility
3Reliability
If water-free emulsifiable concentrate formulations are used, then storage stability is improved, but handling and application efficiency deteriorate
Solution Approach 1:
The formulation changes the physical-chemical parameters of the system by introducing unsaturated C18-fatty acid, which modifies the solubility and emulsification characteristics. This allows the formulation to maintain water-based properties for improved handling and application efficiency while the fatty acid ensures storage stability is not compromised
Data Source
AI summary
A fungicidal composition in the form of a liquid concentrate, which, in addition to at least one formulation adjuvant, comprises cyprodinil and an unsaturated C18-fatty acid selected from oleic acid, linoleic acid and linolenic acid.