Cosmetic Tensioning Composition Film-Forming Polymer System
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Solution Overview
Problem
Current cosmetic products that aim to temporarily eliminate or reduce the appearance of skin texture imperfections, such as pores, fine lines, and wrinkles, often cause discomfort, irritation, and are incompatible with other cosmetic products, and the inclusion of pigments degrades the skin-tightening effect.
Innovation Solution
A cosmetic composition featuring a film-forming tensioning polymer system with non-crosslinking polyamide/polyacrylate copolymers and hydrophilic or hydrophobically treated particulate agents, like precipitated silica particles, that maintains skin-tightening properties even when pigments are added, providing a natural-looking and feeling skin smoothing effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If adhesive, contractile film formers are used to temporarily eliminate skin texture imperfections, then skin smoothing effect is improved, but discomfort and irritation of the skin worsen
Solution Approach 1:
The patent modifies the chemical composition parameters of the film-forming system by using specific polymers (polyvinyl caprolactam-polyvinylidene chloride crosspolymer, polyacrylonitrile) and controlling their concentrations, along with using specific particle types (precipitated silica with 5-20 micrometer size) to achieve skin smoothing without excessive contraction that causes discomfort and irritation
Solution Approach 2:
The patent creates a composite system combining film-forming polymers with specific particulate agents (precipitated silica particles). This composite approach allows the polymers to provide the contractile skin-tightening effect while the particles provide structural support and optical scattering to reduce the appearance of imperfections, thereby achieving smoothing without the harmful effects of strong adhesion
2Manufacturing precision
If pigment particles are added to cosmetic products to enable visual appearance of natural skin, then coverage of skin flaws is improved, but the skin-tightening effectiveness degrades
Solution Approach 1:
The patent applies different functional components to different aspects of the cosmetic product: pigment particles (iron oxides, titanium dioxide) are used locally for coverage and color correction, while the film-forming polymer system is used locally for skin-tightening. The specific particle size range (5-20 micrometers for silica, smaller for pigments) ensures that each component performs its function without interfering with the other, maintaining both coverage and tightening effectiveness
3Manufacturing precision
If existing film formers are used to provide skin tightening, then skin smoothing effect is improved, but visibility of the film worsens
Solution Approach 1:
The patent incorporates pigmented cosmetic components (iron oxide pigments, titanium dioxide) that provide color matching to natural skin tones. These pigments mask the whitish appearance of the film-forming polymers while simultaneously providing coverage for skin imperfections, making the film invisible and the effect more natural-looking
4Manufacturing precision
If adhesive, contractile film formers are used to pull skin to the surface, then appearance of wrinkles is improved, but cracking of the film worsens
Solution Approach 1:
The patent creates a composite structure where film-forming polymers provide the contractile force for skin tightening while inorganic particulate agents (precipitated silica) provide structural reinforcement. This composite system prevents film cracking by distributing mechanical stresses across the particle network, allowing the film to maintain integrity during muscle movements while still providing wrinkle reduction
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 effectively reduces the appearance of skin imperfections while maintaining the skin-tightening benefits and compatibility with other cosmetic products, offering a natural appearance and feel.
Implementation Method 1
Film formers are chemical compositions mat when applied to skin, leave a pliable, cohesive and continuous covering. A select group of film formers are also adhesive to skin
Implementation Method 2
A select group of film formers are also adhesive to skin and even contractile. When an adhesive, contractile film former is applied, the skin at the bottom of the valley or crevice may be pulled to the surface
Data Source
AI summary
A cosmetic composition having a film-forming tensioning polymer system and at least one hydrophilic non-colloidal particulate agent comprising precipitated silica particles is disclosed. The film forming composition comprises a first non-crosslinking polyamide/polyacrylate copolymer comprising at least one amide monomer; (meth)acrylate monomers; monomers having at least one carboxylic functional group; and monomers having at least one amine functional group. The film forming composition also comprises a second non-crosslinking polyamide copolymer comprising at least one amide; at least one quaternary ammonium containing monomer; and monomers having at least one amine functional group.