Solid Powder Cosmetic Formulation with Boron Nitride and Elastic Resin
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional solid powder cosmetics face challenges in achieving both high impact resistance and usability when boron nitride and spherical elastic resin particles are blended in large amounts, as this combination typically compromises moldability and impact resistance.
Innovation Solution
A solid powder cosmetic formulation comprising 12-30 mass % of synthetic fluorphlogopite iron, 5-15 mass % of boron nitride, and 5-15 mass % of phenyl-modified silicone spherical elastic powder, with optional additions of dextrin fatty acid-treated low-temperature-calcined zinc oxide and carboxy silicone soap-treated powders, produced using a wet preparation method with water as the main dispersion medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If boron nitride is blended in a large amount to improve adhesion and hiding power, then usability is improved, but moldability becomes poor and impact resistance decreases
Solution Approach 1:
The patent combines boron nitride particles with spherical elastic resin particles to create a composite powder system. The spherical elastic resin particles act as a matrix that binds the boron nitride particles, allowing high boron nitride content (5-15 mass%) to be incorporated while maintaining moldability and impact resistance through the elastic polymer network.
Solution Approach 2:
The patent specifies precise blending ratios of boron nitride (5-15 mass%) and spherical elastic resin particles (5-15 mass%) to optimize the balance between usability and mechanical properties. By controlling these parameters within specific ranges, the formulation achieves both high boron nitride content for usability and sufficient elastic resin for structural integrity.
2Ease of operation
If spherical elastic resin particles are increased to improve adhesion and spreadability, then usability is improved, but moldability becomes poor and impact resistance decreases
Solution Approach 1:
The patent optimizes the concentration of spherical elastic resin particles within a specific range (5-15 mass%) to achieve the desired balance. This controlled parameter adjustment ensures sufficient adhesion and spreadability while preventing excessive elasticity that would compromise moldability and impact resistance.
Solution Approach 2:
The spherical elastic resin particles are combined with inorganic pigments and extenders to form a composite powder system where the inorganic components provide structural support and the elastic resin provides adhesion, creating a balanced formulation.
3Ease of operation
If both boron nitride and spherical elastic resin particle are blended in large amounts to improve usability, then adhesion and spreadability are improved, but impact resistance is impaired
Solution Approach 1:
The patent creates a multi-component composite powder system combining boron nitride particles, spherical elastic resin particles, inorganic pigments, and extenders. This composite structure allows both components to be present in high amounts (5-15 mass% each) while the synergistic interaction between components maintains overall structural integrity and impact resistance.
Solution Approach 2:
The patent specifies precise blending ratios for multiple components including boron nitride (5-15 mass%), spherical elastic resin particles (5-15 mass%), and other inorganic components, optimizing the overall formulation to achieve high usability while preventing impact resistance impairment through balanced composition.
Data Source
AI summary
An objective of the present invention is to provide a solid powder cosmetic excellent in impact resistance and usability despite that boron nitride and spherical resin particle are blended in a large amount. The present invention provides a solid powder cosmetic comprising: 12-30 mass % of synthetic fluorphlogopite iron; 5-15 mass % of boron nitride; and 5-15 mass % of phenyl-modified silicone spherical elastic powder.