Aqueous Herbicidal Composition Stabilization for Tank Mix Compatibility
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Solution Overview
Problem
Current water-insoluble herbicide aqueous suspension and emulsion formulations are not physically compatible with Roundup Powermax®, leading to precipitation, clogged spray nozzles, and uneven coverage when mixed, which reduces the effectiveness of weed control.
Innovation Solution
Aqueous herbicidal compositions comprising flumioxazin, pyroxasulfone, hydroxyethyl cellulose, and magnesium aluminum silicate, which stabilize the formulations, preventing gelling and caking, ensuring long-term stability and compatibility with Roundup Powermax®, thus maintaining spray nozzle functionality and achieving even coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple herbicide formulations are mixed to control resistant weeds, then weed control effectiveness is improved, but physical incompatibility causes precipitation and spray nozzle clogging
Solution Approach 1:
The patent introduces a compatibility agent as an intermediary substance that mediates between water-insoluble herbicide formulations and Roundup Powermax. This agent prevents direct harmful interactions between the formulations, eliminating precipitation and nozzle clogging while maintaining the effectiveness of all herbicide components in the tank mix
2Reliability
If water-insoluble herbicide formulations are used, then effectiveness against resistant weeds is improved, but compatibility with Roundup Powermax deteriorates
Solution Approach 1:
The compatibility agent serves as a mediator that stabilizes the physical composition of the tank mix containing water-insoluble herbicides and Roundup Powermax. It prevents phase separation, precipitation, and other instability issues, allowing both water-insoluble and glyphosate-based formulations to coexist stably in the same spray solution
3Productivity
If multiple herbicides are applied concurrently, then control of glyphosate-resistant weeds is improved, but formulation stability deteriorates due to incompatibility
Solution Approach 1:
The compatibility agent enables concurrent application of multiple herbicides by acting as a stabilizing intermediary in the tank mix. It maintains formulation stability throughout storage and application, preventing the precipitation and separation that would otherwise occur when combining water-insoluble herbicides with Roundup Powermax, thereby preserving both productivity and 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 compositions provide long-term stability and compatibility with Roundup Powermax®, preventing nozzle clogging and ensuring uniform application, effectively controlling weeds without the issues of precipitation and poor spray characteristics.
Implementation Method 1
hydroxyethyl cellulose, and magnesium aluminum silicate, which stabilize the formulations, preventing gelling and caking
Implementation Method 2
aqueous herbicidal compositions comprising flumioxazin, pyroxasulfone, hydroxyethyl cellulose, and magnesium aluminum silicate
Data Source
AI summary
The present invention is directed to an aqueous herbicidal composition containing flumioxazin, pyroxasulfone, hydroxyethyl cellulose, and magnesium aluminum silicate. The present invention is further directed to a method of controlling weeds by applying compositions of the present invention.