Polyglyceryl Emulsifier Foundation for Natural Material Stability

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Solution Overview

Problem

Conventional oil-in-water foundation cosmetic compositions face challenges in achieving stability, sensation of use, and color representation when excluding PEG-based and silicone-based materials, which are typically used for emulsifiers, thickeners, and pigments.

Innovation Solution

A foundation cosmetic composition is formulated using a polyglyceryl-based emulsifier, an oil-phase thickener, a water-phase thickener, and a pigment, with specific weight percentages to ensure stability and performance without synthetic materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If PEG-based and silicone-based emulsifiers are used, then emulsion stability and makeup effects are improved, but natural material requirements are not met and environmental concerns arise

Engineering Contradiction:

Improveemulsion stabilityVSAvoidsynthetic material usage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters by replacing PEG-based and silicone-based emulsifiers with polyglyceryl-based emulsifiers. This substitution maintains the emulsification function while eliminating synthetic materials, achieving both emulsion stability and natural material requirements simultaneously.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses polyglyceryl-based emulsifiers that are naturally derived and biodegradable, replacing long-lasting synthetic emulsifiers. These natural emulsifiers provide sufficient stability for the cosmetic composition while being environmentally friendly and suitable for natural material formulations.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Object-affected harmful factors

If PEG-based and silicone-based materials are excluded, then natural material requirements are met, but emulsion stability and performance are compromised

Engineering Contradiction:

Improvesynthetic material usageVSAvoidemulsion stability

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent adjusts the emulsifier composition by selecting specific polyglyceryl-based emulsifiers with appropriate molecular weights and fatty acid compositions. This parameter optimization ensures that the natural emulsifiers achieve the required emulsion stability and performance characteristics without synthetic additives.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs a composite approach by combining multiple polyglyceryl-based emulsifiers with different fatty acid chains (isostearate, ricinoleate, laurate, caprylate, pentaoleate). This composite emulsifier system provides synergistic effects that enhance emulsion stability and performance while maintaining natural material composition.

Inventive Principle:

Principle #40Composite materials

3Object-affected harmful factors

If natural thickeners are used instead of synthetic thickeners, then natural material requirements are met, but viscosity control and texture may be affected

Engineering Contradiction:

Improvesynthetic material usageVSAvoidsensation of use

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent optimizes the concentration and type of natural thickeners (hectorite, bentonite, xanthan gum, magnesium silicate) to achieve the desired viscosity range and texture. By adjusting these parameters, the composition maintains excellent sensation of use and application properties while using only natural thickening agents.

Inventive Principle:

Principle #35Parameter changes

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 stable emulsion, excellent feel, and durable color without using silicone-based or PEG-based emulsifiers, maintaining viscosity and hardness within desirable ranges.

Implementation Method 1

Conventional oil-in-water (O/W) foundation cosmetic compositions have used PEG-based or silicone-based emulsifiers to achieve excellent emulsion stability

Methodology Applied

Scientific EffectEmulsification: Emulsion

Implementation Method 2

a polyglyceryl-based emulsifier... may include one or more selected from the group consisting of polyglyceryl pentaisostearate, polyglyceryl polyricinoleate, polyglyceryl-5 laurate, polyglyceryl-2 caprylate, and polyglyceryl-6 pentaoleate

Methodology Applied

Scientific EffectSurfactant action: Surfactant

Implementation Method 3

The oil-phase thickener may include one or more selected from the group consisting of hectorite and bentonite... The water-phase thickener may include one or more selected from the group consisting of hectorite, bentonite, xanthan gum, magnesium silicate, magnesium aluminum silicate, lithium magnesium silicate, and magnesium sodium silicate

Methodology Applied

Scientific EffectThickening:

Data Source

PatentEP4574129A1Cosmetic composition comprising natural material

Publication Date: 2025.06.25 COSMAX INC

AI summary

Disclosed herein is a cosmetic composition comprising a polyglyceryl-based emulsifier, an oil-phase thickener, a water-phase thickener, and a pigment. The cosmetic composition according to the present disclosure includes natural materials and provides excellent sensation of use and color durability without issues such as stiffness, greasiness, or darkening. Additionally, the cosmetic composition offers high pigment dispersibility and emulsion stability.