Nicotine Matrix Controlled Release via Thermal Adsorption
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Solution Overview
Problem
Smokeless cigarettes face challenges in controlled release of nicotine and flavorings, with existing solutions often resulting in unintended release during storage and variable nicotine concentration, and flavoring delivery that does not meet regulatory limits.
Innovation Solution
A nicotine and/or flavor matrix using powdered activated carbon and glycol as adsorbent and desorption agents, with a defined temperature range (preferably between 45°C and 60°C) to ensure controlled release during active use while minimizing release during storage, using a self-sufficient heat unit and separate matrices for nicotine and flavorings to prevent cross-influence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nicotine and flavorings are stored in a reservoir without thermal control, then they can be readily available for release, but they release unintentionally during storage and have variable concentration
Solution Approach 1:
The patent applies parameter changes by controlling the temperature parameter to regulate nicotine release. The system transitions from uncontrolled ambient temperature storage to controlled thermal environments, where nicotine is released only when heated to specific temperatures during active use, preventing unintended release during storage and maintaining concentration stability.
Solution Approach 2:
The patent utilizes phase transitions of nicotine between adsorbed state (at lower temperatures during storage) and desorbed/gas phase (when heated during active use). This phase change mechanism allows the nicotine to be held stable in the adsorbed state during storage and released controllably when thermal energy induces desorption, resolving the contradiction between availability and stability.
2Quantity of substance
If nicotine is released continuously to maintain concentration, then availability is improved, but storage stability decreases due to unintended release
Solution Approach 1:
The patent implements periodic action by releasing nicotine only during active use phases when heating is applied, rather than continuously. The system alternates between storage mode (no release) and active use mode (controlled release via heating), ensuring nicotine is available when needed while preventing loss during storage periods.
Solution Approach 2:
The patent introduces a thermal intermediary mechanism (heating element and temperature control system) that mediates between the nicotine reservoir and the release process. This intermediary allows selective activation of nicotine release only when thermal energy is supplied during active use, preventing spontaneous release during storage and maintaining substance quantity.
3Device complexity
If flavorings and nicotine are mixed in one matrix, then device complexity is reduced, but cross-influence occurs affecting delivery control
Solution Approach 1:
The patent applies segmentation by separating nicotine and flavorings into distinct matrices or reservoir compartments. This physical separation prevents cross-influence between the two substances, allowing independent control and optimization of each component's release characteristics without interference, thereby maintaining reliable delivery control.
Solution Approach 2:
The patent implements local quality by assigning different properties to different parts of the delivery system - nicotine matrix with specific thermal characteristics and flavoring matrix with different properties. Each local region is optimized for its specific substance, allowing precise control of nicotine delivery while preventing unwanted interactions, even though this increases overall device complexity.
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
Ensures stable storage and controlled release of nicotine and flavorings, meeting regulatory limits by preventing desorption during storage and ensuring uniform delivery during active use, maintaining the composition and haptic properties of conventional cigarettes.
Implementation Method 1
A nicotine and/or flavor matrix, in particular with an adsorbent and/or desorption agent such as powdered activated carbon and/or glycol
Implementation Method 2
The matrices are designed in such a way that they release thermally induced nicotine, one or more nicotine-containing compounds or flavorings, for example by desorption
Data Source
AI summary
The present invention relates to a nicotine and flavor matrix for a smokeless cigarette, wherein the release of nicotine and/or flavorings begins above 45°C. The invention also relates to a nicotine and flavor matrix for a smokeless cigarette, wherein adsorbent powders and glycols are used as matrix materials. The invention further relates to a smokeless cigarette comprising at least one nicotine and/or flavor matrix according to the invention.