Quaternary Ammonium Polyhydroxyl Compounds for Personal Care
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Solution Overview
Problem
There is a need for novel polyhydroxyl compounds with unique properties to enhance performance or provide synergistic effects in personal care compositions, as existing compounds do not adequately differentiate in areas of interest, particularly in personal care applications.
Innovation Solution
Development of monocationic polyhydroxyl compounds, specifically salts of Formula (I), derived from reactions between 3-chloro-1,2-propanediol and various amines, which are cosmetically acceptable and can be used in hair and skin care compositions, offering humectancy and other benefits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional polyhydroxyl compounds and quaternary ammonium compounds are used separately, then their individual functions are achieved, but synergistic effects and differentiated performance in personal care compositions are not obtained
Solution Approach 1:
The patent combines polyhydroxyl compounds and quaternary ammonium compounds into a single hybrid molecule (Formula I), merging the humectant properties of polyols with the surfactant and conditioning properties of quaternary ammonium compounds. This eliminates the need for separate ingredients while providing synergistic effects in hair and skin care compositions.
Solution Approach 2:
The quaternary ammonium polyhydroxyl compound performs multiple functions simultaneously: it acts as a humectant (attracting and retaining moisture), a surfactant (reducing surface tension), and a conditioner (improving combability and feel). This multi-functionality replaces what would traditionally require multiple separate ingredients.
2Ease of operation
If existing quaternary ammonium polyhydroxy compounds are used, then some functional properties are achieved, but cosmetically acceptable performance and user preference are not optimized
Solution Approach 1:
The patent optimizes specific structural parameters of the quaternary ammonium polyhydroxyl compound, including the alkyl chain lengths (R1a, R1b, R2a, R2b), the polyhydroxyl group configuration (R3a-R3b), and the counterion selection. These parameter optimizations enhance cosmetic performance, solubility, and user preference while maintaining functional reliability.
Data Source
AI summary
Described are novel monocationic polyhydroxyl compounds and their uses in personal care compositions.