Water-in-Oil Emulsion Coating via Polyphenol Polysaccharide Hydrogen Bonds
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Solution Overview
Problem
Existing cosmetic compositions for keratin materials, such as skin care and makeup, lack ingredients that are environmentally friendly and compatible with various packaging types while providing long-lasting cosmetic effects resistant to mechanical friction, water, sebum, and cleansing products, and do not use silicones.
Innovation Solution
A water-in-oil emulsion composition comprising a continuous oily phase with plant oil and volatile alkane, and an aqueous phase with polyphenol, non-ionic polysaccharide, and polyglycerolated non-ionic surfactant with HLB ≤ 8, forming a coating agent via hydrogen bonds for enhanced persistence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If hydrophobic film-forming polymers (silicone resins, silicone acrylate copolymers) are used as coating agents to achieve long-lasting wear, then persistence of cosmetic effects is improved, but environmental impact and ingredient tolerance worsen
Solution Approach 1:
The patent changes the chemical composition parameters by replacing silicone-based polymers with a water-in-oil emulsion system containing polyphenols, polysaccharides, and polyglycerolated surfactants. This parameter change achieves long-lasting wear through hydrogen bonding mechanisms while using environmentally friendly, naturally-derived ingredients that are better tolerated by consumers.
Solution Approach 2:
The invention uses a composite water-in-oil emulsion system combining multiple natural ingredients (polyphenols from plant extracts, polysaccharides, polyglycerolated surfactants) to create a coating agent that provides persistence comparable to or exceeding silicone-based polymers, while avoiding their environmental and tolerability issues.
2Ease of operation
If water-in-oil emulsions are used to reduce tightness and drying effects, then sensory comfort is improved, but resistance to water and sebum may worsen
Solution Approach 1:
The patent creates a composite water-in-Oil emulsion system where the continuous oil phase provides sensory comfort and the dispersed aqueous phase containing polyphenols and polysaccharides forms a persistent film through hydrogen bonding. This composite structure achieves both sensory comfort and resistance to water and sebum simultaneously.
Solution Approach 2:
The invention applies local quality by having different phases serve different functions: the oil phase provides immediate sensory comfort upon application, while the aqueous phase with polyphenols and polysaccharides provides long-term persistence and resistance to external factors like water and sebum.
3Object-affected harmful factors
If natural ingredients with little environmental impact are used, then environmental compatibility is improved, but persistence and resistance to mechanical friction and cleansing products may worsen
Solution Approach 1:
The patent changes the molecular interaction parameters by utilizing hydrogen bonding between polyphenols and polysaccharides to create a film with exceptional persistence. This natural ingredient combination achieves resistance to mechanical friction and cleansing products comparable to or exceeding synthetic polymers, while maintaining environmental compatibility.
Solution Approach 2:
The invention combines multiple natural ingredients (polyphenols, polysaccharides, polyglycerolated surfactants) into a composite water-in-Oil emulsion that provides persistence and resistance properties previously only achievable with silicone-based polymers, thereby reconciling environmental compatibility with performance requirements.
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 composition achieves long-lasting cosmetic effects resistant to mechanical friction, water, sebum, and cleansing products, with improved sensory comfort and compatibility with diverse packaging, without using silicones.
Implementation Method 1
the formation of a coating agent resulting from the interaction via hydrogen bonds, at ambient temperature and atmospheric pressure, between the polyphenol X and the non-ionic polysaccharide
Implementation Method 2
a continuous oily phase comprising i) at least one plant oil; and ii) at least one volatile alkane
Implementation Method 3
at least one polyglycerolated non-ionic, preferably non-silicone, surfactant with an HLB of less than or equal to 8
Data Source
AI summary
The present invention relates to a composition for caring for and/or making up keratin materials, in particular the skin, in the form of a water-in-oil emulsion comprising, in particular in a physiologically acceptable medium: a) a continuous oily phase comprising: i) at least one plant oil; and ii) at least one volatile alkane; and b) at least one aqueous phase dispersed in the oil phase, comprising: i) at least one polyphenol X comprising at least two different phenol groups, and ii) at least one non-ionic polysaccharide Y, and iii) at least one polyol; c) at least one polyglycerolated non-ionic, preferably non- silicone, surfactant with an HLB of less than or equal to 8.