Iron Oxide and BEMT UV Filter Composite for Sunscreen Texture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sunscreens struggle to provide effective protection against UVA, UVB, and visible light while maintaining a pleasant texture and non-greasy feel.
Innovation Solution
A composition comprising a light absorbing system of iron oxide and bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT), which is combined during the formation of the composition to achieve balanced protection and a pleasant application experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high levels of UV filters are used to achieve high protection, then protection efficiency is improved, but composition stability and texture quality deteriorate
Solution Approach 1:
The patent combines iron oxide particles with an organic UV filter (bemotrizinol) to create a composite light-absorbing system. This composite approach allows the system to provide high-level UV protection while maintaining composition stability and pleasant texture, as the iron oxide matrix supports the UV filter and prevents common issues like greasiness and instability that occur with high concentrations of standalone UV filters
2Adaptability or versatility
If high amounts of UV filters are combined to achieve broad spectrum protection, then protection coverage is improved, but application properties deteriorate
Solution Approach 1:
The iron oxide/bemotrizinol composite serves multiple functions simultaneously: it provides broad-spectrum UV protection (UVA and UVB), acts as a pigment for cosmetic application, and maintains pleasant texture properties. This multi-functionality eliminates the need to combine multiple separate UV filters, thereby preserving application properties while achieving comprehensive protection coverage
3Reliability
If multiple sunscreens are combined to achieve high protection, then filtering efficiency is improved, but composition complexity increases
Solution Approach 1:
The patent merges the functions of multiple UV filters into a single composite system consisting of iron oxide particles combined with bemotrizinol. This unified approach provides broad-spectrum UV protection equivalent to or better than multiple separate filters, while significantly reducing formulation complexity and simplifying the composition structure
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 provides high levels of UVA, UVB, and visible light protection, maintaining a non-greasy texture and enhancing the appearance of the skin.
Implementation Method 1
a light absorbing system comprising 2,4-bis-{[4-(2-ethyl hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: bis-ethylhexyloxyphenol methoxyphenyl triazine) and iron oxide
Data Source
AI summary
The present disclosure relates to compositions including a light absorbing system including bemotrizinol and iron oxide, as well as to methods of making and using such compositions.