Agrichemical Composition Using Hydroxypropyl Cellulose and High Vapor Pressure Solvent
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Solution Overview
Problem
Current agrichemical compositions do not adequately enhance the efficacy of agrichemicals, such as fungicides, insecticides, and herbicides, due to limitations in adhesion and distribution on plant surfaces.
Innovation Solution
A composition comprising hydroxypropyl cellulose, an organic solvent with a saturated vapor pressure of 50 mmHg or higher at 25°C, and water, where the organic solvent content is 0.02 to 1 wt% and the hydroxypropyl cellulose to organic solvent ratio is 0.1 to 2, facilitating faster evaporation and increased viscosity for improved adhesion of agrichemicals on plant surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional surfactants and chelating agents are used to enhance agrichemical efficacy, then the agrichemical effects are improved to a sufficient degree, but the composition complexity increases and the market demands for superior efficacy are not fully met
Solution Approach 1:
The patent changes the physical and chemical parameters of the composition by using an organic solvent with high saturated vapor pressure (50 mmHg or higher at 25°C) instead of conventional water-based formulations. This parameter change enables faster evaporation and viscosity increase, improving agrichemical adhesion and efficacy without requiring complex mixtures of multiple surfactants and chelating agents
Solution Approach 2:
The patent creates a composite formulation system combining hydroxypropyl cellulose with specific organic solvents (having saturated vapor pressure ≥50 mmHg at 25°C) in defined weight ratios (0.1 to 2). This composite approach achieves superior agrichemical efficacy through synergistic interactions between the cellulose derivative and organic solvent, eliminating the need for multiple conventional additives
2Reliability
If the organic solvent content is increased to improve evaporation rate and viscosity, then the adhesion of agrichemicals is enhanced, but the cost and potential harmful effects increase
Solution Approach 1:
The patent optimizes the organic solvent content parameter to a specific range (0.02 to 1 wt%) to achieve the desired balance between evaporation rate, viscosity increase, and adhesion enhancement while minimizing harmful effects and costs
Solution Approach 2:
Hydroxypropyl cellulose acts as an intermediary substance that works synergistically with the organic solvent to enhance adhesion. The cellulose derivative provides film-forming and adhesion-promoting properties that amplify the effect of the organic solvent at lower concentrations, reducing the need for high levels of potentially harmful solvents
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 described composition significantly enhances the adhesion and efficacy of agrichemicals, leading to improved preventive, insecticidal, miticidal, and herbicidal effects by ensuring better contact and retention on plant surfaces.
Implementation Method 1
the rate at which the solvent evaporates from the composition when the composition is applied to a plant becomes faster than the case of using water as the only solvent
Implementation Method 2
the viscosity of the composition using such a specific organic solvent increases promptly on the surface of the plant to which the composition is applied
Data Source
AI summary
An agrichemical-containing composition that exhibits excellent agrichemical efficacy is provided. The agrichemical-containing composition comprises hydroxypropyl cellulose, an agrichemical, an organic solvent having a saturated vapor pressure of 50 mmHg or higher at 25° C., and water. When the composition as a whole is taken as 100 wt %, the content of the organic solvent is 0.02 to 1 wt %, and the weight ratio of the hydroxypropyl cellulose to the organic solvent (hydroxypropyl cellulose/organic solvent) is in a range of 0.1 to 2.