Hyperbranched Copolymer UV Filter Composition Reducing Transfer

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Solution Overview

Problem

Cosmetic compositions often transfer undesirably from the skin to other surfaces when contact is made, leading to contamination and staining of fabrics, displays, and other surfaces, which is aesthetically and functionally detrimental.

Innovation Solution

The use of a cosmetic composition that combines a hyperbranched copolymer made from dodecenyl succinic acid anhydride, diisopropanol amine, and bis-dimethylaminopropyl amine, with terminal groups of a specific formula, and at least one liquid or solid organic UV filter, significantly reduces material transfer to contacted surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cosmetic composition is applied to skin for protection and treatment, then skin care function is improved, but material transfer to contacted surfaces occurs causing contamination and staining

Engineering Contradiction:

Improveskin protection functionVSAvoidmaterial transfer and contamination

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the chemical parameters of the cosmetic composition by incorporating a specific hyperbranched copolymer with terminal groups having particular chemical properties. This copolymer modifies the surface characteristics and adhesion properties of the formulation, reducing its tendency to transfer to contacted surfaces while maintaining its skin protection function.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite cosmetic formulation by combining the hyperbranched copolymer with UV filters and other cosmetic ingredients. This composite structure leverages the unique properties of the copolymer to reduce material transfer while preserving the functional benefits of the UV filters and other components for skin protection.

Inventive Principle:

Principle #40Composite materials

2Quantity of substance

If cosmetic material is transferred to contacted surfaces, then coverage and application is achieved, but contamination of fabrics and surfaces occurs

Engineering Contradiction:

Improvematerial coverageVSAvoidstaining and contamination

Core Design Contradiction:

Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The patent modifies the physical and chemical parameters of the cosmetic material through the incorporation of the hyperbranched copolymer. This changes the material's interaction with surfaces, reducing its ability to stain and contaminate fabrics and other surfaces while maintaining adequate coverage for effective application.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If cosmetic composition is formulated with active ingredients, then treatment efficacy is improved, but transfer to surfaces increases causing functional degradation

Engineering Contradiction:

Improvetreatment efficacyVSAvoidfunctional degradation of surfaces

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the formulation parameters by incorporating the hyperbranched copolymer, which modifies the overall behavior of the cosmetic composition. This reduces the transfer of active ingredients to contacted surfaces, preventing functional degradation of surfaces while maintaining the treatment efficacy on the skin.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The hyperbranched copolymer acts as an intermediary substance within the cosmetic formulation. It mediates between the active ingredients and contacted surfaces, preventing direct interaction that would cause contamination and functional degradation, while allowing the active ingredients to maintain their skin treatment functions.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12220477B2Cosmetic composition comprising specific hyperbranched copolymers and organic UV filters

Publication Date: 2025.02.11 DSM IP ASSETS BV

AI summary

The present invention relates to cosmetic compositions which comprise a hyperbranched copolymer of the monomers dodecenyl succinic acid anhydride, diisopropanol amine and bis-dimethylaminopropyl amine having quaternary terminal groups and a liquid and/or solid organic UV-filter. The copolymer is used in a cosmetic composition comprising the UV-filter for reducing the material transfer to a contacted surface. Preferably the copolymer is polyquatemium-110.