Isosorbide Diester Pearlizing Agent for Cosmetics
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Solution Overview
Problem
Current pearlizing agents in cosmetic compositions are not satisfactory, particularly lacking in performance regarding pearlescence, whiteness, and compatibility with sensitive ingredients, and often require complex preparation and energy-intensive processes, with a need for ethylene oxide and propylene oxide-free alternatives that are also ecologically sustainable and biodegradable.
Innovation Solution
A composition comprising isosorbide diesters of saturated C12-C24 fatty acids combined with non-ionic surfactants, which acts as a pearlizing wax, providing improved pearlescence and compatibility while being free-flowing and easily incorporated into cosmetic formulations without extensive heating, and can be formulated as a concentrate to reduce costs and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pearlizing agents are used, then pearlescence and whiteness can be achieved, but compatibility with sensitive ingredients like silicones is impaired and stability is reduced
Solution Approach 1:
The patent uses composite materials by combining isosorbide diester (a biodegradable ester) with non-ionic surfactants to create a pearlizing agent that maintains stability while being compatible with sensitive ingredients like silicones. This composite approach allows the formulation to achieve both durability and versatility without compromising performance.
2Adaptability or versatility
If ethylene oxide and propylene oxide units are included in pearlizing waxes, then compatibility with surfactants is improved, but ecological sustainability and biodegradability are compromised
Solution Approach 1:
The patent changes the chemical parameters by replacing ethylene oxide and propylene oxide units with isosorbide diester, which is derived from renewable resources and is biodegradable. This parameter change maintains the necessary compatibility with surfactants while eliminating harmful factors and improving ecological sustainability.
3Stability of the object's composition
If pearlizing waxes require heating for incorporation, then thorough mixing is achieved, but energy expenditure and process complexity increase
Solution Approach 1:
The patent changes the physical parameters of the pearlizing wax formulation to allow incorporation at room temperature without heating. The isosorbide diester-based composition achieves thorough mixing and homogeneity through simple stirring, eliminating the need for energy-intensive heating processes while maintaining composition stability.
4Quantity of substance
If pearlizing agents are formulated as concentrates, then transport and storage costs are reduced, but free-flowing properties and ease of preparation are compromised
Solution Approach 1:
The patent optimizes the formulation parameters to achieve a balance between concentration and free-flowing properties. The isosorbide diester combined with non-ionic surfactants creates a concentrate that maintains free-flowing characteristics, ensuring easy preparation and handling while reducing transport and storage costs through higher concentration.
Data Source
AI summary
A description is given of a composition comprising at least one isosorbide diester as constituent I and at least one non-ionic surfactant as constituent II and also of a method for the preparation thereof. In addition, the present invention relates to the use of this composition as pearlizing agent in cosmetic compositions.