Aerosol-Generating Material Acidification for Nicotine Salt Formation
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Solution Overview
Problem
Existing aerosol-generating materials with high nicotine content, such as lamina tobacco, often produce aerosols with excessive harshness, which can be detrimental to user experience despite their desirable flavor profiles and nicotine content.
Innovation Solution
The development of an aerosol-generating material comprising a plant-based component with a nicotine content of at least 1.5% by dry weight, combined with an aerosol-former material in the range of 10% to 30% by weight and an acid in the range of 0.1% to 5% by weight, which optimizes the nicotine delivery and reduces harshness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high nicotine content plant based materials (such as lamina tobacco) are used in aerosol-generating materials, then nicotine delivery is improved, but aerosol harshness increases excessively
Solution Approach 1:
The patent applies parameter changes by adjusting the pH of the aerosol-generating material through acidification. By lowering the pH to a specific range (3.5-6.5), the proportion of protonated nicotine increases, which reduces aerosol harshness while maintaining nicotine delivery. This chemical parameter modification resolves the contradiction between high nicotine content and excessive harshness.
Solution Approach 2:
The patent introduces acid (as a mediator) to interact with nicotine in the plant-based material. The acid protonates nicotine, forming a salt that delivers nicotine effectively while reducing the harsh sensory experience. This intermediary substance enables simultaneous achievement of high nicotine delivery and reduced harshness.
2Productivity
If the amount of aerosol-former material is increased to improve aerosol generation, then aerosol production is enhanced, but the overall composition complexity increases
Solution Approach 1:
The patent optimizes the quantity of aerosol-former material by specifying a precise weight percentage range (10-30%) of the total composition. This parameter optimization ensures sufficient aerosol generation while avoiding excessive complexity in the formulation, balancing productivity and compositional simplicity.
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
This composition achieves an optimal nicotine delivery and reduces the perceived harshness of the aerosol, providing a better user experience with an appropriate flavor profile and nicotine content.
Implementation Method 1
the aerosol-generating material comprises the acid in an amount from about 50% to about 200% relative to the moles of nicotine in the plant based component
Data Source
AI summary
Aerosol-generating materials including a plant based component, an aerosol-former material, and an acid. Also provided are methods for manufacturing the aerosol-generating materials and articles for use in an aerosol generation system, the articles including the aerosol-generating materials of the invention.