BEMT Spray Compositions for UV Protection and Stability
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Solution Overview
Problem
Existing spray compositions containing bis-ethylhexyloxyphenol methoxyphenyl triazine face challenges in achieving high UV protection while maintaining a stable and pleasant texture suitable for spraying.
Innovation Solution
The development of spray compositions that incorporate bis-ethylhexyloxyphenol methoxyphenyl triazine, combined with other UV filters and solubilizing systems, to enhance UV protection and improve spray application properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high levels of UV filters are used to achieve high protection capabilities, then UV protection efficiency is improved, but composition stability and sprayability deteriorate
Solution Approach 1:
The patent changes the concentration parameter of UV filters to an optimized range (0.1-10% for BEMT, 0.1-5% for solid filters) rather than using high levels, and adjusts physical parameters like viscosity (50-5000 cP) and pH (3-8) to achieve both protection and stability
Solution Approach 2:
The patent uses composite UV filter systems combining multiple filters (BEMT with other organic filters, or solid filters with liquid filters) to achieve synergistic protection effects while maintaining composition stability and avoiding the drawbacks of high single-filter concentrations
2Reliability
If high levels of UV filters are used to achieve high protection capabilities, then UV protection efficiency is improved, but ease of spraying deteriorates
Solution Approach 1:
The patent optimizes viscosity parameters to 50-5000 cP and adjusts pH to 3-8, creating a formulation that flows properly through spray mechanisms while maintaining adequate UV protection at moderate filter concentrations
Solution Approach 2:
The patent creates a homogeneous composition where UV filters are evenly distributed at optimized concentrations throughout the vehicle, ensuring both adequate protection and uniform spray application without localized aggregation that would hinder sprayability
3Reliability
If solid UV filters are used to achieve UV protection, then protection capabilities are improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent specifies precise concentration ranges for solid UV filters (0.1-5%) and controls physical parameters like viscosity and pH to ensure proper dissolution and distribution during manufacturing, simplifying the formulation process
Solution Approach 2:
The patent uses solubilizing agents and vehicles as intermediaries to facilitate the incorporation of solid UV filters into the spray composition, enabling easy mixing and homogeneous distribution without complex manufacturing steps
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 resulting spray compositions provide effective protection against UV rays with good application and use properties, including stable texture and ease of spraying.
Implementation Method 1
spray compositions comprising 2,4-bis-{[4-(2-ethyl hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine (BEMT)... in an amount effective to protect keratin material against UV rays
Data Source
AI summary
The present disclosure relates to spray compositions including 2,4-bis-{[4-(2-ethyl hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine, as well as to methods of making and using such compositions.