Polyglycerol Ester Composition for Low-Irritation Stable Cleansing Oils
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Solution Overview
Problem
Existing oily cleansing cosmetics require multiple types of polyglycerol fatty acid esters and may cause ocular irritability and separation issues.
Innovation Solution
A compound formed by esterifying polyglycerol, fatty acid, and dicarboxylic acid, with specific ratios and compositions to minimize ocular irritability and enhance stability, including a mass ratio of polyglycerol to fatty acid (1:0.7 to 1.5) and a molar ratio of dicarboxylic acid to polyglycerol (0.01 to 0.30), using unsaturated and branched fatty acids with 18 to 22 carbon atoms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple types of polyglycerol fatty acid esters are formulated to achieve high cleansing effect and ease of washing out, then cleansing performance is improved, but formulation complexity and risk of ocular irritability increase
Solution Approach 1:
The patent combines polyglycerol, fatty acid, and dicarboxylic acid into a single esterified compound that integrates the functional benefits of multiple polyglycerol fatty acid esters. This merging approach maintains high cleansing effect while reducing formulation complexity by using one compound instead of multiple separate esters
Solution Approach 2:
The invention creates a composite esterified compound containing polyglycerol, fatty acid, and dicarboxylic acid components in specific ratios. This composite structure provides both the cleansing properties of polyglycerol fatty acid esters and the stability of dicarboxylic acid esters, while reducing ocular irritability through the dicarboxylic acid component
2Productivity
If multiple types of polyglycerol fatty acid esters are formulated to achieve high cleansing effect, then cleansing performance is improved, but ocular irritability increases
Solution Approach 1:
The patent creates a composite esterified compound where the dicarboxylic acid component (present at 1-30 mass%) acts as a stabilizing and soothing agent that reduces ocular irritability while maintaining the cleansing efficacy provided by the polyglycerol fatty acid ester backbone
Solution Approach 2:
The invention changes the chemical composition parameters by introducing dicarboxylic acid into the esterified compound structure. This parameter change modifies the compound's properties to reduce ocular irritability while preserving cleansing performance through controlled ratios of components
3Productivity
If conventional esterified polyglycerol fatty acid esters are used to achieve high cleansing effect, then cleansing performance is improved, but stability and separation resistance are insufficient
Solution Approach 1:
The patent develops a composite esterified compound that integrates polyglycerol fatty acid ester (for cleansing) with dicarboxylic acid ester (for stability). The specific ratio range (dicarboxylic acid at 1-30 mass% of total esterified compound) optimizes both cleansing effect and formulation stability, preventing separation issues
Solution Approach 2:
The invention applies local quality by having different components serve different functions within the same compound structure: the polyglycerol fatty acid ester portion provides cleansing effect while the dicarboxylic acid portion provides stability and separation resistance, with each component optimized for its specific role
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 compound achieves reduced ocular irritability and improved stability without separation, suitable for use in cosmetics and other applications, including skin care, skin cleansing, and hair care products.
Implementation Method 1
a compound which is an ester of a polyglycerol, a fatty acid and a dicarboxylic acid
Data Source
AI summary
A compound which is an ester of a polyglycerol, a fatty acid and a dicarboxylic acid, wherein the compound satisfies the following (A) to (D):(A) an average degree of polymerization of the polyglycerol is from 2 to 20;(B) among the total fatty acid, a total proportion of an unsaturated fatty acid and a branched fatty acid having 18 to 22 carbon atoms is 70% by mass or more;(C) a mass ratio of the polyglycerol to the fatty acid (polyglycerol:fatty acid) is from 1:0.7 to 1:1.5; and(D) the number of carbon atoms of the dicarboxylic acid is from 4 to 12, and a molar ratio to the polyglycerol (dicarboxylic acid/polyglycerol) is from 0.01 to 0.30.According to the present invention, a novel compound having less ocular irritability and having excellent stability without separation upon formulation to ester oil can be provided.