Glycol Ether Insecticide Suspensions for Stable Penetration
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Solution Overview
Problem
Existing insecticidal formulations with suspended active ingredients face challenges in achieving good bioavailability, penetration, and storage stability across a wide temperature range, particularly in suspension concentrates.
Innovation Solution
Formulations comprising an active ingredient, an ammonium salt, an alkyl propoxylate ethoxylate dispersant, and a glycol ether solvent, optionally with additional surfactants and fillers, to enhance stability and penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If active ingredients are formulated as suspension concentrates (SC) or oil-based suspension concentrates (OD) with solid particulate form, then storage stability is improved, but bioavailability and penetration are reduced
Solution Approach 1:
The patent introduces penetration enhancers (adjuvants) as intermediary substances that facilitate the uptake of solid particulate active ingredients into plants. These penetrants act as mediators between the suspended active ingredient particles and the plant tissue, enabling effective delivery without requiring the active ingredient to be in dissolved form.
Solution Approach 2:
The formulation creates a composite system combining solid particulate active ingredients with penetration enhancers and surfactants. This composite approach allows the suspension concentrate to maintain physical stability while the penetrant components enable biological activity enhancement through their synergistic interaction with the solid particles.
2Ease of manufacture
If active ingredients with low melting point are used, then ease of manufacture is improved, but storage stability deteriorates at high temperatures
Solution Approach 1:
The patent changes the physical state parameter of the active ingredient from dissolved to suspended particulate form. This parameter change allows low melting point active ingredients to be formulated as stable suspensions that resist softening or melting during production and storage, as the solid particulate form maintains structural integrity at elevated temperatures.
Solution Approach 2:
The formulation uses readily available penetration enhancers and surfactants that can be easily incorporated into the suspension concentrate. These adjuvant components are selected for their availability and effectiveness, allowing simple formulation processes even for temperature-sensitive active ingredients.
3Reliability
If active ingredients are dissolved in aqueous solution or concentrate (EC or SL formulation), then penetration and bioavailability are improved, but storage stability across wide temperature range deteriorates
Solution Approach 1:
The patent utilizes phase transition by maintaining the active ingredient in solid particulate suspension form rather than dissolved liquid form. This phase state allows the formulation to remain stable across wide temperature ranges (0 to 54°C) while penetration enhancers facilitate the transition of particles into plant tissue for effective bioavailability.
4Reliability
If adjuvants/penetrants are added to increase biological activity of suspended active ingredients, then penetration is improved, but formulation complexity increases
Solution Approach 1:
The patent employs surfactants and penetration enhancers that perform multiple functions simultaneously: they act as dispersants for the solid particulate active ingredients, as penetration facilitators for plant uptake, and as stability agents for the suspension concentrate. This multi-functionality reduces the need for separate additives and simplifies the overall formulation.
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 formulations provide high stability and effective penetration of suspended active ingredients at both high and low temperatures, ensuring consistent biological activity.
Implementation Method 1
Formulations comprising an active ingredient, an ammonium salt, an alkyl propoxylate ethoxylate dispersant, and a glycol ether solvent
Implementation Method 2
an alkyl propoxylate ethoxylate dispersant
Data Source
AI summary
The invention relates to insecticidal active ingredient formulations comprising at least one active ingredient or a combination of active ingredients in solid form having good storage stability at high and low temperatures and high active ingredient penetration, to a process for production thereof and to the use thereof for application of the active ingredients present.