Glufosinate Herbicide Composition for Plant Surface Adhesion
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Solution Overview
Problem
Existing herbicide compositions using glufosinate lack optimal adhesion to plant surfaces, leading to suboptimal herbicidal performance and formulation stability.
Innovation Solution
A herbicide composition comprising glufosinate, a compound represented by the formula R1O(R2O)nSO3-M+ and an aromatic sulfonate salt with specific carbon chain lengths, optimized at a mass ratio of 0.010 to 0.18, enhancing adhesion and contact area for improved herbicidal effect and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional surfactants are used in glufosinate compositions, then formulation stability may be maintained, but adhesion to plant surfaces is insufficient leading to suboptimal herbicidal performance
Solution Approach 1:
The patent combines two different surfactant types (alkyl ether sulfate and aromatic sulfonate salt) in specific proportions to create a composite surfactant system. This composite approach allows the formulation to achieve both improved adhesion (from the aromatic sulfonate salt) and maintained formulation stability (from the alkyl ether sulfate), resolving the contradiction between herbicidal performance and formulation stability.
Solution Approach 2:
The patent optimizes the mass ratio parameters of the surfactant components, specifically setting the aromatic sulfonate salt at 0.010-0.18 mass ratio relative to alkyl ether sulfate. By precisely controlling these compositional parameters, the formulation achieves optimal balance between adhesion properties and stability, transforming the trade-off into a optimized parameter range.
2Strength
If alkyl polyglucoside is used as surfactant, then formulation may be stable, but adhesion energy and contact area with plants are insufficient
Solution Approach 1:
The patent changes the chemical parameter class of surfactants from alkyl polyglucoside to a combination of alkyl ether sulfate and aromatic sulfonate salt. This parameter change in surfactant chemistry provides significantly higher adhesion energy and contact area with plant surfaces, while the specific mass ratio range (0.010-0.18) keeps the formulation relatively simple and easy to manufacture.
3Area of stationary object
If higher concentration of surfactant is used to improve adhesion, then contact area increases, but formulation stability and productivity decrease
Solution Approach 1:
The patent uses a composite surfactant system where aromatic sulfonate salt provides strong adhesion at low concentrations (0.010-0.18 mass ratio), while alkyl ether sulfate maintains formulation stability. This composite approach achieves sufficient contact area without requiring high total surfactant concentrations, thereby maintaining high formulation productivity and ease of manufacturing.
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 composition achieves enhanced herbicidal efficacy and formulation stability by optimizing the adhesion of glufosinate droplets to plant surfaces, improving weed control and reducing environmental burden.
Implementation Method 1
optimizing the adhesion of glufosinate droplets to plant surfaces
Implementation Method 2
component (B): a compound represented by the following general formula (B-I): R1O(R2O)nSO3-M+ where M+ is an alkali metal or an ammonium; component (C) an aromatic sulfonate salt
Data Source
AI summary
The present invention is a herbicide composition containing the following components (A), (B) and (C), wherein a mass ratio between the content of component (B) and the content of component (C), (C)/(B), is 0.010 or more and 0.18 or less: component (A): a compound selected from glufosinate and a salt thereof; component (B): a compound represented by the following general formula (B-I): R1O(R2O)nSO3-M+ (B-I) wherein R1 is a hydrocarbon group with 8 or more and 24 or less carbons, R2 is an alkanediyl group with 2 or more and 4 or less carbons, n is an average number of added moles and 0 or more and 30 or less, and M+ is a counter ion; and component (C): an aromatic sulfonate salt having an aliphatic hydrocarbon group.