Emulsifiable Concentrate with Fatty Acid Amide and Aromatic Hydrocarbon
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Solution Overview
Problem
Current emulsifiable concentrates with high active concentrations tend to form unstable emulsions, limiting their effectiveness in crop protection applications.
Innovation Solution
An emulsifiable concentrate comprising a triazole fungicide, an aromatic hydrocarbon, and an amide of the formula R1—C(O)N(R2)2, where R1 is C5-C19-alkyl and R2 is C1-C4-alkyl, along with an optional emulsifier, which forms a stable oil-in-water emulsion upon mixing with water, achieving high active concentrations and stability for over 24 hours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high active concentrations are used in emulsifiable concentrates, then the effectiveness in crop protection is improved, but the emulsion stability deteriorates
Solution Approach 1:
The patent changes the chemical parameters of the solvent system by using specific fatty acid amides with defined molecular weights (C12-C20) and specific aromatic hydrocarbons, along with controlled ratios of these components. This parameter optimization allows achieving high active substance concentrations (30-70% w/w) while maintaining emulsion stability for over 24 hours, resolving the contradiction between concentration and stability
Solution Approach 2:
The patent employs a composite solvent system combining fatty acid amides (as primary solvents) with aromatic hydrocarbons (as co-solvents) and optional emulsifiers. This composite approach leverages the complementary properties of each component: fatty acid amides provide high dissolution power while aromatic hydrocarbons enhance emulsion stability, enabling both high active concentrations and stable emulsions
2Quantity of substance
If fatty acid amides are used as solvents to achieve high dissolution power, then the active concentration is improved, but the emulsion stability deteriorates
Solution Approach 1:
The patent introduces aromatic hydrocarbons as intermediary substances that mediate between the fatty acid amides and water. The aromatic hydrocarbons act as co-solvents that bridge the hydrophobic fatty acid amide molecules and the aqueous phase, enabling the system to maintain both high dissolution power for the active substance and stable emulsion formation upon water dilution
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 concentrate enables high dissolved triazole fungicide concentrations, spontaneous emulsion formation upon dilution, cold storage stability, and inclusion of adjuvants, resulting in effective and stable crop protection against phytopathogenic fungi.
Implementation Method 1
EC are typically based on hydrophobic solvents with high dissolution power
Implementation Method 2
Due to their hydrophobicity they typically result in stable emulsions when diluted with water
Data Source
AI summary
Provided herein is an emulsifiable concentrate comprising a triazole fungicide, an aromatic hydrocarbon, and an amide of the formula (I) as defined herein. Further provided herein is a process for the preparation of said concentrate; an emulsion obtainable by mixing water, a triazole fungicide, an aromatic hydrocarbon, and an amide of the formula (I); and a method for controlling phytopathogenic fungi, wherein the concentrate or the emulsion is allowed to act on the phytopathogenic fungi, their environment, on the crop plants to be protected from the phytopathogenic fungi or on the soil.