UV-Visible Absorbing Compounds for Broad-Spectrum Protection
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Solution Overview
Problem
Current ultraviolet blocking agents are limited in their ability to protect biological and non-biological materials from both ultraviolet and visible radiation, as they often lack stability, compatibility, and broad-spectrum absorption.
Innovation Solution
Development of new compounds with specific chemical formulas that absorb ultraviolet radiation and visible radiation, including UVA, UVB, and UVC, and their use in compositions to protect materials from harmful radiation exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If commercially available ultraviolet blocking agents (para-aminobenzoic acid derivatives, benzotriazoles, benzophenones, methoxycinnamates, salicylates) are used, then ultraviolet absorption is achieved, but visible radiation protection is insufficient and stability/compatibility issues arise
Solution Approach 1:
The patent develops compounds that simultaneously absorb both ultraviolet radiation (290-400 nm) and visible radiation (400-750 nm), making a single agent capable of providing broad-spectrum protection. This multi-functional approach replaces the need for multiple separate UV filters with different spectral ranges, directly addressing the limitation of commercially available agents that only cover UV ranges.
Solution Approach 2:
The invention creates composite molecular structures combining features of different known UV-absorbing classes (benzotriazoles, benzophenones, cinnamates, salicylates) into novel compounds with extended absorption spectra. These composite structures integrate electron-donating and electron-withdrawing groups to achieve both UV and visible light absorption while maintaining stability and biocompatibility.
2Reliability
If existing ultraviolet absorbing agents are selected, then some level of protection is provided, but stability, permanence, and compatibility with various media are limited
Solution Approach 1:
The patent systematically varies molecular parameters including substituent types (electron-donating and electron-withdrawing groups), chain lengths, and structural configurations to optimize the balance between absorption efficacy, photostability, and chemical compatibility. By adjusting these parameters, the compounds achieve enhanced stability while maintaining broad-spectrum absorption and compatibility with diverse media such as cosmetics, pharmaceuticals, and industrial materials.
3Adaptability or versatility
If broader spectrum absorption is achieved, then visible radiation protection improves, but may increase complexity of compound structure
Solution Approach 1:
The patent divides the broad absorption spectrum requirement into distinct functional segments: UV-absorbing core structures (benzotriazole, benzophenone, cinnamate, or salicylate moieties) and visible-light-absorbing substituent groups. This segmentation allows systematic design where each segment contributes specifically to different wavelength ranges, simplifying the overall design process while achieving comprehensive spectral coverage.
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 new compounds effectively absorb a broad spectrum of radiation, providing enhanced protection against ultraviolet and visible radiation-induced damage, improving stability and compatibility in various applications.
Implementation Method 1
new compounds that absorb UV radiation and/or visible radiation and protect biological materials as well as non-biological materials from damaging exposure to UV radiation and/or visible radiations
Data Source
AI summary
The present technology relates to UV radiation-absorbing and/or visible radiation-absorbing compounds, and use of same in the preparation of compositions for protecting biological and nonbiological material against UV and/or visible radiation. Specifically, the compounds of the present technology may be used in the preparation of compositions for protecting biological or non-biological material against UV radiation, in particular UVA, UVB, UVC or visible radiation, or any combinations thereof. The biological material can be skin and the composition and/or the formulation can be a cosmetic or personal care composition, such as a sunscreen composition. The non-biological material can be an article of manufacture such as a textile or fabric.