Amorphous Solid Aerosol Composition Reducing Reconstituted Tobacco
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Solution Overview
Problem
Existing non-combustible aerosol provision devices face challenges in generating an acceptable aerosol with combustible tobacco blends, as they often require high proportions of reconstituted tobacco, which can result in undesirable sensory characteristics when heated.
Innovation Solution
An aerosol-generating composition comprising an amorphous solid with a high aerosol generating agent content, combined with tobacco material, where the amorphous solid includes aerosol generating agents, gelling agents like methyl cellulose or guar gum, and fillers, configured to generate aerosol effectively without relying heavily on reconstituted tobacco.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high proportions of reconstituted tobacco are used to generate acceptable aerosol, then aerosol generation is improved, but sensory characteristics deteriorate
Solution Approach 1:
The invention changes the chemical and physical parameters of the aerosol-generating composition by incorporating an amorphous solid matrix with specific glass transition temperature characteristics and controlled water content (5-20 wt%). This allows the composition to generate acceptable aerosol while avoiding the sensory degradation associated with high reconstituted tobacco content, as the amorphous solid provides a different volatilization mechanism that produces desirable sensory characteristics.
Solution Approach 2:
The invention uses a composite material system consisting of an amorphous solid matrix combined with tobacco material. The amorphous solid comprises multiple components including aerosol-generating compounds, gelling agents, and fillers in specific ratios. This composite structure enables effective aerosol generation while maintaining favorable sensory characteristics, resolving the contradiction between aerosol reliability and sensory quality.
2Reliability
If amorphous solid with high aerosol generating agent content is used, then aerosol quality is improved, but manufacturing complexity increases
Solution Approach 1:
The invention applies preliminary action by pre-forming the amorphous solid matrix with the desired composition and structure before combining it with tobacco material. The amorphous solid is prepared in advance with controlled water content, gelling agents, and aerosol-generating compounds, which simplifies the final assembly process and reduces manufacturing complexity despite the sophisticated composition requirements.
Solution Approach 2:
The invention manages manufacturing complexity through parameter control, specifically maintaining water content within 5-20 wt% and controlling the glass transition temperature of the amorphous solid. These parameter specifications provide clear manufacturing targets that simplify the production process while ensuring high aerosol quality, transforming complex compositional requirements into manageable process parameters.
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 proposed composition allows for the generation of an acceptable aerosol with a reduced need for reconstituted tobacco, improving sensory characteristics and aerosol quality in non-combustible aerosol provision systems.
Implementation Method 1
The heating volatilizes at least one component of the material, typically forming an inhalable aerosol
Implementation Method 2
one or more gelling agents selected from methyl cellulose, guar gum, and mixtures thereof
Data Source
AI summary
An aerosol-generating composition including an amorphous solid, the amorphous solid having: (a) aerosol generating agent in an amount of from about 25 to 80 wt % of the amorphous solid; (b) one or more gelling agents selected from methyl cellulose, guar gum and mixtures thereof; and (c) filler in an amount of at least about 15 wt % of the amorphous solid; wherein the amount of gelling agent and filler taken together is from about 20 to 75 wt % of the amorphous solid.