Siloxysilicate Cosmetic Resin Composite for Transfer Resistance and Comfort

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Solution Overview

Problem

Cosmetic compositions that provide high gloss, transfer resistance, and long wear often suffer from brittleness, flakiness, and an uncomfortable, tacky feel due to the use of traditional film-forming resins, which require plasticizers to improve flexibility but result in unsatisfactory performance.

Innovation Solution

An anhydrous cosmetic composition combining siloxysilicate resin, polyorganosiloxane-containing polymer, volatile solvent, and non-volatile solvent with multiple phenyl groups, where the ratio of polyorganosiloxane-containing polymer to siloxysilicate resin is greater than or equal to 1, providing superior transfer resistance, comfort, and non-tacky feel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional film forming resins are used to improve transfer resistance and wear, then transfer resistance and wear are improved, but the resin becomes brittle and flakes off

Engineering Contradiction:

Improvetransfer resistanceVSAvoidflexibility

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent uses a composite resin system combining siloxysilicate resin with polyorganosiloxane-containing polymer. This composite approach allows the siloxysilicate resin to provide film formation and transfer resistance while the polyorganosiloxane-containing polymer acts as an intrinsic plasticizer to provide flexibility and prevent flaking, eliminating the need for separate plasticizer additives.

Inventive Principle:

Principle #40Composite materials

2Strength

If plasticizer is added to improve flexibility and reduce flake off, then flexibility is improved, but the film becomes tacky and uncomfortable on skin

Engineering Contradiction:

ImproveflexibilityVSAvoidtacky feel

Core Design Contradiction:

StrengthVSObject-generated harmful factors

Solution Approach 1:

The patent changes the chemical parameters of the plasticizing component by using polyorganosiloxane-containing polymer instead of traditional plasticizers. This parameter change maintains the flexibility function while eliminating the tacky feel, as the polyorganosiloxane-containing polymer provides flexibility without the unwanted tactile properties of conventional plasticizers.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If silicone film forming resins are used to improve transfer resistance, then transfer resistance is improved, but the films are not glossy and have poor comfort

Engineering Contradiction:

Improvetransfer resistanceVSAvoidgloss

Core Design Contradiction:

ReliabilityVSIllumination intensity

Solution Approach 1:

The patent creates a composite system where siloxysilicate resin provides the film formation and transfer resistance, while polyorganosiloxane-containing polymer contributes to gloss and comfort. This composite approach allows simultaneous achievement of transfer resistance and cosmetic appeal that neither component could achieve alone.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS8945525B2Comfortable, long-wearing, transfer-resistant colored cosmetic compositions having high gloss and a non-tacky feel

Publication Date: 2015.02.03 LOREAL SA

AI summary

The present invention is directed to an anhydrous glossy composition which is long wearing and transfer resistant, while at the same time providing superior comfort, non-tacky feel and cushioning, the composition containing (a) at least one siloxysilicate resin; (b) at least one polyorganosiloxane-containing polymer; (c) at least one volatile solvent; (d) at least one non-volatile solvent having more than one phenyl group; and (e) optionally, at least one colorant; and wherein the ratio by weight of (b) to (a) is greater than or equal to 1.