4-Hydroxyacetophenone Stabilized Water-in-Oil Emulsions
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Solution Overview
Problem
Existing water-in-oil emulsions are prone to physical decomposition, leading to instability and unsatisfactory skin care performance, including increased viscosity issues and sensory drawbacks such as stickiness or greasiness, which limits their marketability and effectiveness.
Innovation Solution
Incorporating 4-hydroxyacetophenone as a silicone emulsifier in water-in-oil emulsions, along with cyclic and linear silicones, to enhance stability and skin-moisturizing effects while maintaining sensory acceptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional water-in-oil emulsions are used, then they provide basic moisturizing function, but they are prone to physical decomposition and show instability
Solution Approach 1:
The patent changes the chemical composition parameters of the emulsion by incorporating specific antioxidants (4-hydroxyacetophenone) and carefully selected emulsifier systems. This chemical parameter modification prevents physical decomposition and stabilizes the emulsion structure without altering its fundamental W/O nature.
Solution Approach 2:
The patent creates a composite emulsion system combining multiple functional components: W/O emulsifiers, antioxidants (4-hydroxyacetophenone), moisturizing agents, and optional silicone emulsifiers. This composite approach enhances overall stability while maintaining the basic moisturizing function.
2Reliability
If stabilizing agents are added to prevent decomposition, then emulsion stability improves, but viscosity fluctuations and sensory drawbacks (stickiness or greasiness) worsen
Solution Approach 1:
The patent modifies the formulation parameters by using specific concentrations of antioxidants and emulsifiers that stabilize the emulsion without excessively increasing viscosity. The sensory properties are maintained by careful selection of ingredient types and amounts.
Solution Approach 2:
The patent introduces silicone emulsifiers as intermediary substances that mediate between the aqueous and oil phases, providing steric stabilization without significant viscosity increase. These intermediaries prevent decomposition while maintaining acceptable sensory properties.
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 4-hydroxyacetophenone stabilizes water-in-oil emulsions against physical decomposition, providing improved skin care performance with reduced viscosity fluctuations and enhanced sensory properties, resulting in more effective and stable cosmetic products.
Implementation Method 1
The use of 4-hydroxyacetophenone stabilizes water-in-oil emulsions against physical decomposition
Implementation Method 2
Incorporating 4-hydroxyacetophenone as a silicone emulsifier in water-in-oil emulsions
Implementation Method 3
The water content in the outermost layer of skin is of utmost importance for its beauty and health
Data Source
AI summary
The invention relates to water-in-oil emulsions containing 4-hydroxyacetophenone.