High-Load Haloxyfop Ester Composition Low-Temperature Viscosity
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Solution Overview
Problem
High-load haloxyfop formulations exhibit high viscosity at low temperatures, making handling and application challenging, particularly with the recent 900 gae/L product exceeding 11 Pa·s at -5° C., which is significantly higher than current 520 gae/L products, leading to usability issues.
Innovation Solution
Development of high-load emulsifiable concentrate compositions containing at least 875 gae/L of haloxyfop ester, solvents, and surfactants, which maintain a viscosity of less than 11 Pa·s at -5° C. and leave less than 3.9 weight percent residue upon pouring, improving pourability and usability at low temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the concentration of haloxyfop is increased to 900 gae/L, then the active ingredient content is improved, but the viscosity increases to greater than 11 Pa·s at -5° C.
Solution Approach 1:
The patent changes the physical-chemical parameters of the formulation by incorporating specific solvents (such as dimethyl carbonate, ethyl methyl carbonate, propylene carbonate) and surfactants (such as polyoxyethylene alkyl ethers, alkylbenzene sulfonates) to modify the viscosity characteristics of the high-concentration haloxyfop formulation, enabling it to maintain acceptable viscosity at low temperatures despite the high active ingredient concentration
Solution Approach 2:
The patent creates a composite formulation system combining haloxyfop ester with carefully selected solvent mixtures and surfactant systems. This composite approach allows the formulation to achieve both high active ingredient concentration (900 gae/L) and acceptable flow properties through the synergistic interaction of multiple components
2Quantity of substance
If the concentration of haloxyfop is increased to 900 gae/L, then the active ingredient content is improved, but the pourability worsens with more than 3.9 weight percent residue at 5° C.
Solution Approach 1:
The patent modifies the formulation parameters by selecting specific solvents with appropriate freezing points and viscosities, and surfactants with suitable HLB values, to ensure the formulation maintains good pourability at low temperatures (5° C.) while achieving high active ingredient concentration
Solution Approach 2:
The patent uses surfactants as intermediary substances that reduce surface tension and improve wetting properties, allowing the high-concentration formulation to pour more easily at low temperatures by facilitating flow and reducing residue formation
Data Source
AI summary
Provided herein are high-load emulsifiable concentrate compositions containing at least 875 g/L haloxyfop ester, a solvent, and a surfactant. The concentrate compositions leave less than 3.9 weight percent residue upon pouring at 5° C.