Polyol Ester Mixture for Vaseline Substitute
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for biodegradable ointment bases with properties similar to petrolatum, such as consistency, rheology, spreadability, skin protection, and sensory properties, while reducing irritants and using an environmentally friendly manufacturing process.
Innovation Solution
A polyol ester mixture is produced through a one-pot esterification reaction of glycerol, sebacic acid, and a specific monocarboxylic fatty acid mixture, optimizing the fatty acid distribution to achieve a balanced viscoelastic state at skin temperature, improving sensory properties and manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If petrolatum is used as ointment base, then consistency, rheology, spreadability and skin protection are achieved, but it contains mineral oil aromatic hydrocarbons and paraffins that are harmful to the environment and human body
Solution Approach 1:
The patent changes the chemical composition parameters by replacing petroleum-based paraffins with plant-based triglycerides and wax esters, maintaining the desired skin protection properties while eliminating harmful mineral oil aromatic hydrocarbons and paraffins from the formulation
Solution Approach 2:
The invention creates a composite ointment base by combining multiple natural ingredients (triglycerides, wax esters, fatty alcohols) in specific proportions to achieve the desired rheological properties and skin protection effects without relying on single-component petroleum products
2Object-generated harmful factors
If natural products like beeswax and shea butter are used, then biodegradability is improved, but they require vigorous rubbing to melt at skin temperature and have naturally derived differences in physical properties
Solution Approach 1:
The patent adjusts the melting point parameters of natural ingredients by selecting specific triglyceride and wax ester combinations with optimized melting ranges, enabling them to melt smoothly at skin temperature without requiring vigorous rubbing, while maintaining their biodegradable properties
Solution Approach 2:
The invention addresses the variability of natural products by standardizing the physical properties of individual components and their interactions, creating a consistent formulation that behaves predictably at skin temperature despite the natural origin of the materials
3Object-generated harmful factors
If medium-chain triglycerides with long-chain triglycerides are used, then biodegradability is improved, but additional wax must be incorporated to achieve sufficient solidity at room temperature
Solution Approach 1:
The patent merges multiple natural lipid components (triglycerides, wax esters, fatty alcohols) into a unified formulation where the wax esters provide structural solidity while the triglycerides ensure biodegradability and skin compatibility, eliminating the need for separate wax additions
Solution Approach 2:
The invention creates a composite system where different lipid components work synergistically - the triglycerides provide biodegradability and skin properties while the wax esters contribute to solidity and stability, achieving multiple functions simultaneously without increasing formulation complexity
4Object-generated harmful factors
If complex ethers are used to replace vaseline, then biodegradability is improved, but they have high raw material prices and do not easily biodegrade
Solution Approach 1:
The patent changes the chemical structure from complex ethers to triglyceride and wax ester esters, which are more readily biodegradable and less expensive to manufacture, while maintaining the desired skin protection and rheological properties through optimized component selection and ratios
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 polyol ester mixture provides improved sensory properties, such as reduced stickiness and waxiness, and is easier to apply, while maintaining comparable physical stability and skin protection, using a cost-effective and environmentally friendly process.
Implementation Method 1
A polyol ester mixture is produced through a one-pot esterification reaction of glycerol, sebacic acid, and a specific monocarboxylic fatty acid mixture
Implementation Method 2
optimizing the fatty acid distribution to achieve a balanced viscoelastic state at skin temperature
Implementation Method 3
When applied to the body, especially topically onto the skin, which has a temperature of approximately 31 °C, petrolatum provides an occlusive film
Data Source
AI summary
A polyolester mixture as substitute for vaseline obtainable by esterification reaction of a) 0.8 to 1.2 mol glycerin b) 0.5 to 0.7 mol sebacic acid c) 1.0 to 1.4 mol of a monocarboxylic fatty acid mixture with a chain length of 8 to 24 carbon atoms characterized in that the fatty acid mixture c) comprises at maximum 30 wt% of a linear C18 fatty acid, at maximum 3 wt% of fatty acids lower than C12 and at maximum 3 wt% of fatty acids higher than C18 based on the weight of the sum of monocarboxylic fatty acids.