Choline Chloride Hydration Inhibitor for Polysaccharide Adjuvants
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Solution Overview
Problem
Concentrated aqueous polysaccharide polymer solutions are highly viscous and difficult to handle, and ammonium-containing compounds used for hydration control are incompatible with certain herbicides like dicamba, necessitating a solution for improved handling and compatibility in agricultural applications.
Innovation Solution
A concentrated adjuvant composition comprising an incompletely hydrated water-soluble polymer, choline chloride as a hydration inhibitor, and a suspending agent to impart shear thinning properties, allowing for easier handling and compatibility with dicamba-based herbicides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If concentrated aqueous polysaccharide polymer solutions are used to achieve high polymer content, then the polymer concentration is improved, but the viscosity increases making the composition difficult to handle
Solution Approach 1:
The patent changes the hydration state of the polysaccharide polymer from fully hydrated to incompletely hydrated, transforming it from a high viscosity solution to a free-flowing suspension. This parameter change in the physical state of the polymer allows high polymer content (greater than 1.8 parts by weight per 100 parts composition) to be achieved while maintaining low viscosity and ease of handling.
2Stability of the object's composition
If ammonium containing compounds are used to control polysaccharide hydration, then the hydration control is improved, but compatibility with certain herbicides like dicamba deteriorates
Solution Approach 1:
The patent changes the chemical composition parameter by replacing ammonium-containing compounds with choline chloride as the hydration inhibitor. This substitution maintains effective hydration control of the polysaccharide polymer while eliminating the incompatibility issues with dicamba and other sensitive herbicides, thereby improving herbicide compatibility.
Solution Approach 2:
Choline chloride serves as an intermediary substance that performs the function of hydration control without causing the harmful interactions that ammonium compounds have with certain herbicides. It acts as a compatible alternative that mediates between the need for hydration control and the requirement for herbicide compatibility.
3Stability of the object's composition
If fully hydrated polysaccharide solutions are used to achieve desired polymer functionality, then the polymer solubility is improved, but the viscosity increases making storage and application difficult
Solution Approach 1:
Instead of allowing complete hydration of the polysaccharide polymer, the patent applies partial hydration by using choline chloride to inhibit full hydration. This partial action achieves sufficient polymer functionality and stability while preventing the excessive viscosity that would result from complete hydration, enabling easier storage and application.
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 exhibits improved handling properties and storage stability, with reduced viscosity under high shear rates, enabling effective use in agricultural applications without the incompatibility issues associated with ammonium-containing compounds.
Implementation Method 1
a hydration inhibitor component comprising choline chloride
Implementation Method 2
a suspending agent in an amount effective to impart shear thinning properties to the composition
Data Source
AI summary
A concentrated adjuvant composition comprises an incompletely hydrated water-soluble polymer suspended in a liquid medium, a suspension agent and a hydration inhibitor component.