Cosmetic Preparations with Modified Menthol Derivatives for UV Protection
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Solution Overview
Problem
Existing cosmetic and dermatological preparations fail to provide effective UV protection while also moisturizing and cooling the skin without causing skin drying or having an unpleasant menthol smell.
Innovation Solution
Combining 2-isopropyl-5-methyl-cyclohexanecarbonyl-D-alanine methyl ester with one or more light protection filter substances, such as dibenzoylmethane derivatives, phenylene-1,4-bis-(2-benzimidazyl)-3,3'-5,5'-tetrasulfonic acid, and broadband filters like bis-resorcinyltriazine derivatives, to create preparations that offer excellent UV protection, cooling, and moisturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If menthol derivatives are used to provide cooling effect, then cooling sensation is achieved, but unpleasant smell and skin irritation occur
Solution Approach 1:
The patent changes the chemical structure parameter by using menthol derivatives with specific modifications (particularly at positions 1 and 3 of the cyclohexane ring) to alter the properties. This structural modification maintains the cooling effect while eliminating or reducing the unpleasant smell and skin irritation associated with conventional menthol derivatives.
Solution Approach 2:
The invention combines modified menthol derivatives with light protection filter substances to create a composite cosmetic preparation that simultaneously provides cooling effect and UV protection, while the modified structure reduces harmful side effects.
2Temperature
If conventional cooling substances are used, then cooling effect is provided, but skin drying occurs
Solution Approach 1:
The patent modifies the chemical parameters of cooling substances by using specific menthol derivatives with altered structures that have reduced drying effects. The modifications at positions 1 and 3 of the cyclohexane ring specifically address the skin-drying problem while preserving the cooling sensation.
3Object-affected harmful factors
If UV protection is provided using conventional filter substances, then UV protection is achieved, but skin drying and irritation occur
Solution Approach 1:
The patent creates a composite preparation combining light protection filter substances with modified menthol derivatives. This combination provides effective UV protection while the modified cooling component counteracts skin drying and irritation, achieving both protection and comfort.
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 preparations provide comprehensive UV protection across the UVA and UVB ranges, cool, and moisturize the skin effectively without the irritant effects or odor associated with menthol derivatives, thus addressing the limitations of prior art.
Implementation Method 1
They provide excellent protection against UVA and UVB radiation
Implementation Method 2
2-isopropyl-5-methyl-cyclohexanecarbonyl-D-alanine methyl ester... cool and moisturize the skin
Data Source
AI summary
The invention relates to cosmetic or dermatological preparations with combinations of 2-isopropyl-5- methyl-cyclohexanecarbonyl- D-alanine methyl ester and one or more light protective filter substances.