Aprotic Solvent Stabilization of Hydrolytically Unstable Benefit Agents
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Solution Overview
Problem
Benefit agents in compositions are susceptible to hydrolysis during storage, leading to breakdown and instability, which affects consumer experience by providing unpredictable performance.
Innovation Solution
Incorporating an aprotic solvent with a molecular weight between 70 and 250, specifically propylene glycol carbonate, to stabilize benefit agents with hydrolytically or nucleophilically unstable bonds in detergent compositions, along with detergent adjunct ingredients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If benefit agents are used in compositions, then consumer desired benefits are provided, but the benefit agents are susceptible to hydrolysis during storage
Solution Approach 1:
An aprotic solvent is introduced as an intermediary substance between the benefit agent and water to prevent direct contact and hydrolysis. The aprotic solvent forms a protective environment that mediates the interaction between the benefit agent and the aqueous phase, thereby preventing hydrolytic degradation while maintaining product functionality.
Solution Approach 2:
The chemical environment parameters are changed by selecting solvents with specific properties (aprotic character, molecular weight between 70-250). This parameter change transforms the solvent environment from hydrolytically active to hydrolytically inert, thereby stabilizing the benefit agent against degradation.
2Adaptability or versatility
If benefit agents with hydrolytically unstable bonds are used, then desired consumer benefits are achieved, but breakdown occurs during storage
Solution Approach 1:
The aprotic solvent acts as a mediator that allows the benefit agent to maintain its functional properties while preventing hydrolytic breakdown. The intermediary creates a stable chemical environment that preserves both the functionality and compositional integrity of the benefit agent throughout storage.
3Reliability
If benefit agents are used in product, then consumer desired performance is provided, but performance becomes unpredictable during product lifetime
Solution Approach 1:
The aprotic solvent is incorporated into the formulation in advance to prevent hydrolysis before it can occur during storage. This preliminary protective action ensures that the benefit agent remains stable throughout the entire product lifetime, maintaining consistent performance from manufacture through use.
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 use of aprotic solvents significantly improves the stability of benefit agents, ensuring consistent performance across the product's lifetime by preventing hydrolysis, thereby enhancing consumer satisfaction.
Implementation Method 1
an aprotic solvent, preferably wherein the aprotic solvent has a molecular weight of between 70 and 250
Implementation Method 2
the benefit agent comprises at least one hydrolytically unstable bond
Data Source
AI summary
Composition comprising a benefit agent and an aprotic solvent, wherein the benefit agent comprises at least one hydrolytically unstable bond, or at least one nucleophilically unstable bond, or a mixture thereof. Methods of making such compositions.