Volatile Alkane Cosmetic Composition as a Biodegradable Isododecane Substitute
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Solution Overview
Problem
The cosmetic industry faces challenges in meeting the demand for isododecane, a key component in long-lasting makeup products, due to limited oil resources, fluctuating oil markets, and environmental concerns, necessitating a biodegradable substitute with similar properties.
Innovation Solution
A volatile mixture of alkanes derived from fatty alcohols through a Guerbet alcohol reaction and dehydration followed by hydrogenation, offering a biodegradable alternative with similar volatility and sensory characteristics to isododecane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If isododecane is used as a key component in cosmetic formulations, then long-lasting makeup performance and water resistance are improved, but environmental sustainability and biodegradability deteriorate due to petrochemical origin
Solution Approach 1:
The patent changes the chemical composition parameters by replacing petrochemical isododecane with bio-based volatile alkane mixtures (C9-C16) derived from renewable resources. This substitution maintains the volatility and performance characteristics while improving biodegradability and environmental sustainability, directly resolving the contradiction between reliability and environmental harm
Solution Approach 2:
The invention uses volatile alkanes that evaporate completely after application, leaving no residue. This temporary presence followed by complete degradation mirrors the principle of short-living objects that fulfill their function and then disappear, eliminating persistent environmental contamination while maintaining cosmetic performance
2Duration of action of stationary object
If isododecane is used to achieve long-lasting and transfer-free makeup, then duration of action is improved, but dependency on limited oil resources and fluctuating oil markets worsens
Solution Approach 1:
The patent employs a mixture of multiple volatile alkanes (C9, C10, C11, C12, C13, C14, C15, C16) that can serve the same functional role as isododecane. This multi-component approach provides functional universality, ensuring makeup longevity while reducing dependency on any single petrochemical resource
Solution Approach 2:
The invention changes the source parameter of the alkane mixture from petrochemical to bio-based origins while maintaining the critical volatility parameter (flash point 30-60°C) that enables long-lasting performance. This parameter transformation decouples performance from finite oil resources
3Ease of operation
If a volatile mixture of alkanes with flash point ≤55°C is used, then ease of application and sensory characteristics are improved, but fire safety risk increases
Solution Approach 1:
The patent optimizes the flash point parameter to a specific range (30-60°C) that balances volatility for ease of application with acceptable safety margins. This parameter optimization maintains the sensory characteristics and application comfort of isododecane while establishing defined safety boundaries
Solution Approach 2:
The invention uses a mixture of alkanes with different carbon chain lengths (C9-C16), where shorter chains provide volatility for ease of application and longer chains contribute to higher flash points. This local differentiation within the mixture balances sensory properties with fire safety
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 volatile alkane mixture provides cosmetic formulations with excellent stability, ease of application, water resistance, and intense luminous color, while being environmentally friendly and economically viable.
Implementation Method 1
a volatile mixture of alkanes having a flash point below 55° C. measured according to ASTM D93
Implementation Method 2
A volatile mixture of alkanes derived from fatty alcohols through a Guerbet alcohol reaction and dehydration followed by hydrogenation
Data Source
AI summary
A cosmetic composition includes a volatile mixture of alkanes including: from 20 to 100% of a fraction A which includes at least one branched C≤10 alkane; from 0 to 80% of a fraction B which includes at least one linear or branched C>10 alkane; and in that the volatile mixture of alkanes has a flash point below 55° C. measured according to ASTM D93 and represents a mass percentage greater than or equal to 10% relative to the total mass of the composition. It also concerns the process for obtaining the composition.