Aerosol Precursor Preparation via Room-Temperature Mixing
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Solution Overview
Problem
Existing aerosol delivery devices, such as electronic cigarettes, face challenges in preparing aerosol precursor compositions that maintain component stability and achieve targeted ingredient concentrations, often resulting in undesired interactions and side products that affect the quality and shelf life of the aerosol produced.
Innovation Solution
A method involving the preparation of an aqueous solution with organic acids and nicotine, followed by combination with vapor formers like polyols, conducted at room temperature without added heat, to create an aerosol precursor composition that retains desired acid levels and minimizes side reactions, ensuring stability and controlled composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional heating methods are used to prepare aerosol precursor compositions, then vaporization and aerosol generation are achieved, but component degradation and side product formation occur
Solution Approach 1:
The patent changes the temperature parameter from high-temperature heating to room temperature preparation, preventing thermal degradation of components while still achieving aerosol generation through the heating element in the delivery device
Solution Approach 2:
The patent performs preliminary mixing of aerosol precursor components at room temperature before use, ensuring component stability during preparation while the actual vaporization occurs later in the device
2Object-affected harmful factors
If high concentrations of organic acids are added to achieve desired pH, then throat harshness is reduced, but unwanted side reactions and precipitation increase
Solution Approach 1:
The patent optimizes the concentration parameter of organic acids to a specific range (0.1-5% w/v) that balances throat sensation improvement with prevention of side reactions and precipitation
Solution Approach 2:
The patent uses organic acids that replicate the beneficial pH-modulating effect of traditional formulations without reproducing the harmful side reactions, achieving similar sensory outcomes with improved stability
3Object-affected harmful factors
If multiple components are mixed in aerosol precursor to enhance sensory characteristics, then flavor and throat sensation are improved, but component interactions and instability increase
Solution Approach 1:
The patent assigns specific functional roles to different components in the aerosol precursor, with organic acids specifically tasked with pH modulation and throat sensation, allowing other components to maintain their primary functions without excessive interactions
Solution Approach 2:
The patent creates a composite aerosol precursor formulation that combines multiple components (organic acids, nicotine, flavorings, carrier solvents) with optimized ratios that enhance sensory characteristics while maintaining overall formulation stability
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 method provides aerosol precursor compositions with high stability and controlled acid content, reducing throat harshness and side products, while maintaining targeted concentrations, thus enhancing the sensory characteristics and shelf life of the aerosol.
Implementation Method 1
preparing an aqueous solution comprising one or more organic acids and nicotine in water
Implementation Method 2
utilize electrical energy to vaporize or heat a volatile material
Data Source
AI summary
A method for preparing an aerosol precursor composition is provided, which includes the steps of preparing an aqueous solution containing one or more organic acids and nicotine in water; and combining the aqueous solution with one or more vapor formers. The disclosed method can lead to enhanced control over the composition and characteristics of the produced aerosol precursor composition.