Silicone Elastomer Cosmetic Composition for Long-Wear Transfer Resistance

Solution Overview

Problem

Cosmetic compositions that provide long wear and transfer resistance often suffer from dryness, discomfort, flaking, and a tacky, glossy appearance, which are undesirable in makeup products.

Innovation Solution

A cosmetic composition combining silicone elastomer, non-volatile oil with viscosity greater than 100 cSt, silicone resin, polyorganosiloxane copolymer, and volatile solvent at specific ratios, along with optional waxes, fillers, and pigments, to achieve a non-tacky, comfortable, matte finish with long wear and transfer resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If silicone resins are used to impart long wear, then transfer resistance and long wear properties are improved, but the composition becomes very drying and causes discomfort and flaking

Engineering Contradiction:

Improvelong wearVSAvoiddryness and discomfort

Core Design Contradiction:

Duration of action of moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent combines silicone elastomer and silicone oil in a specific ratio (1:0.02 to 1:10) to create a composite material system that integrates the film-forming and long-wear properties of silicone resin with the moisturizing and comfort-providing properties of silicone oil, thereby resolving the contradiction between long wear and comfort

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent specifies precise parameter ranges for silicone oil viscosity (greater than 100 cSt) and the ratio of silicone elastomer to silicone oil (1:0.02 to 1:10) to optimize the balance between film formation for long wear and moisturizing properties for comfort, preventing both excessive dryness and excessive tackiness

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If silicone oils are used to improve comfort, then comfort and non-flaking are improved, but the composition becomes tacky and glossy

Engineering Contradiction:

ImprovecomfortVSAvoidtackiness and glossiness

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent specifies precise parameter ranges for silicone oil viscosity (greater than 100 cSt) and the ratio of silicone elastomer to silicone oil (1:0.02 to 1:10) to optimize the balance between film formation for long wear and moisturizing properties for comfort, preventing both excessive dryness and excessive tackiness

Inventive Principle:

Principle #35Parameter changes

3Reliability

If traditional long-wear ingredients are used, then transfer resistance is improved, but the composition causes flaking

Engineering Contradiction:

Improvetransfer resistanceVSAvoidflaking

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent combines silicone elastomer and silicone oil in a specific ratio (1:0.02 to 1:10) to create a composite material system that integrates the film-forming and long-wear properties of silicone resin with the moisturizing and comfort-providing properties of silicone oil, thereby resolving the contradiction between long wear and comfort

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS10688034B2Long-wearing, transfer-resistant cosmetic composition having improved tackiness

Publication Date: 2020.06.23 LOREAL SA

AI summary

The present invention relates to a cosmetic composition comprising at least one silicone elastomer and at least one non-volatile oil at ratio from about 1:0.2 to about 1:10, at least one silicone resin, at least one volatile solvent and at least one polyorganosiloxane copolymer. The composition of the present invention may optionally contain wax, fillers and/or pigments. The invention also relates to a method for making up and enhancing the appearance of a keratinous substrate, in particular lips, by applying the incentive composition to the keratinous substrate.