Eye Shadow Texture via Polypropylsilsesquioxane and Boron Nitride
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional eye shadow compositions have a hard and brittle texture, leading to uneven application, discomfort, and poor color impact due to their long-wear film-formers, which are difficult to pick up and lay down.
Innovation Solution
A cosmetic composition incorporating polypropylsilsesquioxane, a volatile solvent, boron nitride, and silica, which provides a soft creamy texture, excellent comfort, and high color impact while maintaining long-wear properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If conventional long-wear film-formers are used in eye shadow compositions, then wear resistance is improved, but texture becomes hard and brittle leading to poor application
Solution Approach 1:
The patent uses a composite material system combining polypropylsilsesquioxane (a silicone polymer) with specific fillers (boron nitride and silica) and volatile solvents. This composite approach allows the formulation to achieve both long-wear properties from the film-forming silicone and soft, creamy texture from the filler-solvent system, resolving the contradiction between durability and applicability.
Solution Approach 2:
The patent modifies the physical and chemical parameters of the eye shadow composition by controlling particle size distribution of fillers, ratios of volatile to non-volatile components, and molecular structure of the silsesquioxane. These parameter adjustments enable the composition to maintain softness for easy application while forming durable films for long wear.
2Duration of action of stationary object
If conventional film-formers are used to achieve long wear, then duration of action is improved, but texture becomes dry and hard causing discomfort
Solution Approach 1:
The patent adjusts critical parameters including the volatility rate of solvents, particle size and surface area of fillers, and crosslinking density of the silicone network. These changes create a balanced system that provides prolonged wear while maintaining skin-friendly comfort by preventing excessive dryness and hardness.
Solution Approach 2:
The volatile solvents and filler particles act as intermediaries between the polypropylsilsesquioxane film-former and the skin. The solvents provide initial creaminess and facilitate application, while the fillers modulate the film's physical properties, collectively mediating between long-wear requirements and comfort needs.
3Duration of action of stationary object
If hard texture is used for long-wear eye shadow, then wear resistance is improved, but color impact and evenness of coverage deteriorate
Solution Approach 1:
The patent optimizes parameters such as filler particle size distribution, refractive index matching through solvent selection, and film-forming polymer architecture. These changes enable the composition to form uniform, smooth films with excellent color payoff while maintaining long-wear durability.
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 offers a comfortable, even application with high color impact and long-wear properties, balancing creaminess and dryness for improved user experience and cosmetic performance.
Implementation Method 1
a volatile solvent
Implementation Method 2
polypropylsilsesquioxane...produce long wear
Implementation Method 3
boron nitride, and silica
Data Source
AI summary
Disclosed are cosmetic compositions containing a polypropylsilsesquioxane, a volatile solvent, boron nitride, and silica. Also disclosed are methods for making the cosmetic compositions and applying them to keratinous tissue such as skin in order to enhance its appearance.