Pyrethroid Glycol Stabilizer for Granular Fertilizer
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Solution Overview
Problem
Chemical stability issues of insecticides in formulations combined with granular fertilizers lead to efficacy problems, as degradation can occur without visible signs, impacting the effectiveness of insecticidal granular fertilizers and formulations.
Innovation Solution
An insecticidal composition comprising a pyrethroid and a glycol, such as hexylene glycol, in a concentration of 40.0% to 99.0% by weight, combined with a surfactant and a granular fertilizer, which improves chemical stability and efficacy by enhancing the retention of insecticidal properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an insecticide is formulated with a granular fertilizer, then multiple benefits are conveyed (nutrients for plant growth and insect control), but chemical degradation of the insecticide occurs leading to loss of efficacy
Solution Approach 1:
A polyol compound (glycol or glycerine) is introduced as an intermediary substance between the insecticide and granular fertilizer. This mediator protects the insecticide from chemical degradation while allowing the formulation to maintain both fertilizing and insecticidal functions. The polyol stabilizes the insecticide composition during storage and application.
Solution Approach 2:
The invention creates a composite formulation consisting of four main components: insecticide (1-50 wt%), polyol compound (50-95 wt%), granular fertilizer (5-99 wt%), and optionally a surfactant (0.1-10 wt%). This composite structure integrates multiple functions (insect control, plant nutrition, and chemical stability) into a single formulation that can be applied once to achieve both benefits.
2Reliability
If traditional formulations are used, then insecticidal properties are retained, but chemical degradation occurs without visible signs until field application
Solution Approach 1:
The polyol compound is incorporated into the formulation before application to prevent chemical degradation from occurring in the first place. This preliminary protective action stabilizes the insecticide during storage and handling, eliminating the need to detect degradation issues after they have already compromised efficacy. The stability is built into the formulation structure itself.
3Productivity
If insecticide concentration is increased to improve efficacy, then insect control effectiveness increases, but chemical stability and retention of efficacy decreases
Solution Approach 1:
The invention changes the chemical environment parameters by introducing polyol compounds with specific molecular structures (glycols with 2-6 carbon atoms or glycerine). These parameter changes in the formulation chemistry allow higher insecticide concentrations (1-50 wt%) to be stabilized, preventing degradation while maintaining or enhancing insect control effectiveness.
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 demonstrates improved chemical stability and retention of insecticidal efficacy, ensuring effective control of unwanted insects and provision of nutrients to plants, even under adverse environmental conditions.
Implementation Method 1
the fertilizer may contribute to accelerated chemical degradation of the insecticide. Chemical degradation is an important problem because there may be no physical sign of the degradation and resultant loss of efficacy
Implementation Method 2
combined with a surfactant and a granular fertilizer, which improves chemical stability and efficacy by enhancing the retention of insecticidal properties
Data Source
AI summary
Insecticidal compositions suitable for use in preparation of insecticidal granular fertilizer and insecticidal formulations comprising a pyrethroid and a glycol present in a concentration of from 40.0% by weight to 99.0% by weight based upon the total weight of all components in the composition is disclosed.