Acrylic Film Former and Tackifier Composition for Long-Wear Cosmetics
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Solution Overview
Problem
Cosmetic compositions, such as foundations and lipsticks, often fail to balance long-wear and transfer-resistance properties with good application properties like feel and texture.
Innovation Solution
Compositions comprising esters of polyols and fatty diacid dimers, acrylic film forming agents, and tackifiers, which are anhydrous and in the form of sticks, enhance shine, wear, and texture while maintaining transfer-resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If silicon resins such as MQ resins are used to achieve long wear and transfer-resistance, then wear resistance is improved, but application properties and feel upon application deteriorate
Solution Approach 1:
The patent uses a composite film-forming system combining acrylic polymers with silicones (specifically amodified silicones or silicone copolymers). This composite approach allows the acrylic component to provide good application properties and the silicone component to contribute to wear resistance and transfer-resistance, thereby resolving the contradiction between wear resistance and application properties.
Solution Approach 2:
The patent modifies the silicone structure by introducing amodified groups or copolymerizing with other monomers to change the physical and chemical parameters of the silicone. This allows optimization of both wear resistance and application properties by adjusting parameters such as molecular weight, crosslinking density, and functional group composition.
2Duration of action of moving object
If compositions are formulated for long-wear and transfer-resistance, then duration of action is improved, but texture and feel upon application deteriorate
Solution Approach 1:
The patent employs a composite system of acrylic film formers and modified silicones where the acrylic provides durability and long-wear properties while the modified silicone maintains softness and pleasant texture upon application. This composite material strategy allows simultaneous achievement of long-wear duration and good texture.
Solution Approach 2:
The patent creates different functional zones within the composition: the acrylic polymer provides the structural framework for long-wear and transfer-resistance, while the modified silicone components provide the sensory properties of softness and texture. This local differentiation of material functions resolves the contradiction between duration and texture.
Data Source
AI summary
The invention relates to a composition, especially a cosmetic composition, comprising at least one ester of polyol(s) and of fatty diacid dimer or an ester thereof, at least one acrylic film forming agent and at least one tackifier, as well as to methods of using such compositions.