Aqueous Pest Control Liquid with Controlled Volatilization
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Solution Overview
Problem
Existing aqueous pest control liquids fail to maintain a consistent volatilization of pest control components over a long period, which affects their efficacy in pest control.
Innovation Solution
An aqueous pest control liquid formulation comprising a specific pyrethroid compound, an ester compound with controlled vapor pressure, a glycol ether, and water, with specific weight percentages, that allows for prolonged volatilization of the pest control component when heated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional aqueous pest control liquids are used, then safety for fire and environment is improved, but the volatilization of pest control components cannot be maintained consistently over long periods
Solution Approach 1:
The patent changes the chemical parameters of the formulation by introducing a specific ester compound with controlled vapor pressure and a specific glycol ether. These parameter changes enable the liquid to maintain consistent volatilization over 50 days or more while preserving fire and environmental safety, directly resolving the contradiction between safety and long-term volatilization duration.
Solution Approach 2:
The patent creates a composite aqueous formulation combining pyrethroid compound, specific ester compound, specific glycol ether, and water. This composite material approach allows the synergistic interaction between components to achieve both long-term volatilization consistency and safety requirements, transforming the conventional single-component or simple mixture approach.
2Ease of manufacture
If the pest control liquid formulation is simplified, then ease of manufacture is improved, but the ability to volatilize fixed amount for long period deteriorates
Solution Approach 1:
The patent specifies precise parameter ranges for the ester compound (vapor pressure 1×10^-10 to 1×10^-6 Pa at 25°C) and glycol ether (specific chemical structures). These controlled parameter changes enable long-term volatilization consistency while maintaining relatively simple manufacturing processes, balancing formulation complexity with manufacturability.
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 formulation enables a fixed amount of pest control component to be volatilized for 50 days or more, providing sustained pest control efficacy.
Implementation Method 1
an ester compound having a vapor pressure of 1×10^-10 to 1×10^-6 Pa at 25°C
Implementation Method 2
a fixed amount of pest control component can be volatilized for a long period of time, for example, 50 days or more
Data Source
Figure 1
AI summary
This aqueous pest control liquid including a pyrethroid compound represented by formula (1), wherein R1 and R2 are the same or different and represent a hydrogen atom, a methyl group, a trifluoromethyl group or a chlorine atom, and R3 represents a hydrogen atom, a methyl group or a methoxymethyl group, an ester compound having a vapor pressure at 25°C by Donovan method of 1 × 10-10 to 1 × 10-4 mmHg and one or more (C4-C12 alkoxy) carbonyl groups, a glycol ether and water can volatilize a fixed amount of pest control component for a long period of time, and has an excellent pest control effect.