1,2-Alkanediol Adjuvants for Liquid Pesticide Formulations
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Solution Overview
Problem
Current agricultural adjuvants used in pesticide formulations often have unfavorable toxicity and ecotoxicity profiles, are non-biodegradable, and require energy-intensive melting processes, posing health and safety risks, as well as equipment damage due to their solid state at room temperature.
Innovation Solution
C5 to C12 1,2-alkanediols are used as liquid adjuvants in agricultural compositions, functioning as wetting agents, spreading agents, and penetration enhancers, offering improved efficacy at low concentrations while being biodegradable and reducing phytotoxicity, thus avoiding the need for high-energy melting and minimizing environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional adjuvants are used to enhance wetting and spreading of pesticide droplets, then the biological activity and effectiveness of the active ingredients are improved, but the toxicity and ecotoxicity profiles become unfavorable and biodegradability is reduced
Solution Approach 1:
The patent changes the chemical parameters of adjuvants by using specific C5-C12 1,2-alkanediols with defined carbon chain lengths and structures. This parameter change maintains effective wetting and spreading properties while improving biodegradability and reducing ecotoxicity compared to conventional adjuvants
Solution Approach 2:
The patent employs composite adjuvant formulations containing mixtures of different C5-C12 1,2-alkanediols (such as 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol) combined with pesticides. This composite approach synergistically enhances biological activity while maintaining favorable environmental profiles
2Reliability
If solid adjuvants are used in formulations, then adjuvancy can be provided, but energy-intensive melting processes are required and health and safety risks increase
Solution Approach 1:
The patent changes the physical state parameter of adjuvants from solid to liquid form by selecting C5-C12 1,2-alkanediols that are liquid at room temperature. This eliminates the need for energy-intensive melting processes while maintaining effective adjuvancy properties
Solution Approach 2:
The patent uses readily available liquid 1,2-alkanediols that can be directly incorporated into formulations without requiring complex processing or melting equipment, simplifying the formulation process and reducing energy consumption
3Reliability
If solid adjuvants are used in formulations, then adjuvancy can be achieved, but equipment damage occurs and handling becomes difficult due to solid state at room temperature
Solution Approach 1:
The patent changes the physical state parameter of adjuvants from solid to liquid by selecting C5-C12 1,2-alkanediols with appropriate carbon chain lengths that remain liquid at room temperature, significantly improving ease of handling and mixing into formulations
Solution Approach 2:
The use of liquid adjuvants allows for easier pumping, mixing, and application through standard agricultural spray equipment without the mechanical issues associated with solid materials, improving operational ease
4Reliability
If higher concentrations of adjuvants are used to enhance penetration, then uptake of active ingredients improves, but toxicity and phytotoxicity increase
Solution Approach 1:
The patent optimizes the concentration parameter of adjuvants by using highly effective C5-C12 1,2-alkanediols that achieve superior penetration enhancement at low concentrations (0.01-5% v/v), thereby avoiding phytotoxicity while maintaining effective uptake of active ingredients
Solution Approach 2:
The patent applies specific C5-C12 1,2-alkanediols with optimized molecular structures that provide localized penetration enhancement at the plant cuticle interface, achieving effective uptake with minimal adjuvant concentration and reduced risk of phytotoxicity
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
C5 to C12 1,2-alkanediols enhance the wetting, spreading, and penetration of agricultural active ingredients on plant foliage, improving their uptake and efficacy while maintaining low toxicity and ecotoxicity, and are easily handled in a liquid form, reducing operational costs and safety hazards.
Implementation Method 1
When sprayed on the hydrophobic leaf surface the use of adjuvants could enhance wetting and spreading of the droplets
Implementation Method 2
The use of adjuvants can increase the penetration of the biocide or active component through the plant cuticles
Data Source
AI summary
The current invention relates to a the use of a liquid composition comprising a C5 to C12 1,2-alkanediol as an adjuvant in an agricultural composition. Particularly, the invention relates to the use of C5 to C12 1,2-alkanediols as wetting agent, spreading agent and / or penetration enhancer. In a further embodiment, the present invention relates to an agricultural composition comprising : a C5 to C12 1,2-alkanediol in a concentration of at most 1.00 wt.% with respect to the total liquid composition; and an agricultural active ingredient.