Fatty Acid Ester Crystallization Inhibition via Alkane Solvent
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Solution Overview
Problem
Existing technologies fail to effectively inhibit the crystallization of fatty acid esters at low temperatures, leading to product freezing issues in the cosmetics industry.
Innovation Solution
A method involving the addition of a solvent system comprising at least one alkane of the formula CnH2n+2, where n≤11, to a composition of fatty acid esters, resulting in a mixture with a pour point of less than or equal to 5°C, thereby inhibiting crystallization at low temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fatty acid ester composition is used in cosmetic formulations, then the composition provides desirable cosmetic properties, but the composition crystallizes at low temperatures (below 5°C) causing product freezing and handling difficulties
Solution Approach 1:
The patent introduces a solvent system comprising cycloalkane and/or aromatic hydrocarbon as an intermediary substance that mediates between the fatty acid ester composition and low-temperature conditions. This solvent system acts as a crystallization inhibitor, preventing the fatty acid ester molecules from forming crystal lattices at temperatures below 5°C, thereby maintaining product fluidity without altering the essential cosmetic properties of the ester composition
Solution Approach 2:
The patent changes the physical-chemical parameters of the fatty acid ester composition by adding a solvent system with specific properties (cycloalkane and/or aromatic hydrocarbon). This modification alters the phase behavior and crystallization temperature of the composition, shifting the pour point to below 5°C while maintaining the desired cosmetic characteristics. The solvent system modifies the molecular interactions and packing efficiency of the ester molecules
2Temperature
If a solvent system is added to inhibit crystallization, then the pour point is lowered to below 5°C, but the formulation complexity increases
Solution Approach 1:
The patent achieves pour point depression by modifying the chemical composition parameters of the formulation. By selecting specific solvent systems (cycloalkane and/or aromatic hydrocarbon) with appropriate molecular structures and intermolecular forces, the composition achieves low-temperature fluidity through controlled changes in molecular packing and interaction energies, rather than through complex mechanical or physical processes
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 method successfully lowers the pour point of fatty acid esters, preventing crystallization at temperatures of 5°C or less, and produces a cosmetic formulation that is clear, non-greasy, and suitable for various cosmetic applications.
Implementation Method 1
a method for inhibiting the crystallization of a composition comprising at least one fatty acid ester
Implementation Method 2
adding to said composition a solvent system comprising at least one alkane of the formula CnH2n+2, where n≤11
Data Source
AI summary
A method for inhibiting the crystallization of a composition includes at least the following steps: readying a composition whose pour point, as measured according to standard NF T60-105, is less than or equal to 25° C.; adding to the composition a solvent system having at least one alkane of the formula CnH2n+2, where n≤11; obtaining an ester/alkane mixture whose pour point, as measured according to standard NF T60-105, is less than or equal to 5° C. The invention also relates to an ester/alkane mixture including: a composition having at least one fatty acid ester whose pour point, as measured according to standard NF T60-105, is less than or equal to 25° C.; a solvent system comprising at least one alkane of the formula CnH2n+2, where n≤11; wherein the pour point thereof, as measured according to standard NF T60-105, is less than or equal to 5° C.