Liquid Cleansing Composition Stabilization via 12-HSA and Polyol
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Incorporating 12-hydroxystearic acid (12-HSA) into liquid cleansing compositions, particularly those based on fatty acids and fatty acid soaps, often leads to processing issues and instability due to thickening or phase separation, especially in low synthetic surfactant systems.
Innovation Solution
A formulation window is identified where myristic acid constitutes 45 to 65% of the total fatty acids and polyol is present at a floor level of 20% or greater, ensuring the composition remains processable and stable, allowing for the effective incorporation of 12-HSA.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 12-HSA is incorporated into predominantly fatty acid and fatty acid soap based compositions with low synthetic surfactant concentration, then skin health benefits are delivered, but the composition becomes unprocessable or unstable due to thickening or phase separation
Solution Approach 1:
The patent applies parameter changes by precisely controlling the concentration of 12-HSA within 0.1-5% and maintaining specific ratios of fatty acids (45-65% myristic acid, 20-40% palmitic acid, 10-30% stearic acid). These parameter adjustments prevent the composition from becoming unprocessable or unstable while incorporating 12-HSA for skin health benefits
Solution Approach 2:
The patent uses composite materials by combining 12-HSA with specific fatty acid blends and synthetic surfactants in defined proportions. This composite approach creates a synergistic formulation where the combination of ingredients maintains processability and stability that individual components alone could not achieve
2Reliability
If 12-HSA is incorporated into predominantly fatty acid and fatty acid soap based compositions with low synthetic surfactant concentration, then skin health benefits are delivered, but the composition experiences phase separation over time
Solution Approach 1:
The patent prevents phase separation by controlling the concentration parameters of 12-HSA (0.1-5%) and maintaining specific fatty acid ratios (45-65% myristic acid, 20-40% palmitic acid, 10-30% stearic acid). These parameter optimizations ensure the composition remains stable and homogeneous over time
Solution Approach 2:
The patent uses synthetic surfactants as intermediary agents to mediate between 12-HSA and the fatty acid base. This intermediary approach prevents phase separation by ensuring compatible interaction between the hydrophobic 12-HSA and the aqueous phase, maintaining long-term stability
3Reliability
If 12-HSA is incorporated into predominantly fatty acid and fatty acid soap based compositions with low synthetic surfactant concentration, then skin health benefits are delivered, but the formulation viscosity changes unpredictably
Solution Approach 1:
The patent controls formulation structuring by optimizing the concentration of 12-HSA (0.1-5%) and maintaining specific fatty acid ratios. These parameter adjustments ensure predictable and manageable viscosity changes, preventing the formulation from becoming too thick or too thin
Data Source
AI summary
The present invention relate to liquid cleansing compositions comprising 12-HSA which are both processable and stable. Applicants have defined a specific composition window (defined by specific types and ratios of fatty acid and/or fatty acid soaps, as well as critical ceiling for 12-HSA and floor levels of polyol) where these objectives can be met.