Cooling Agent Formulation for Aerosol-Generating Smoking Articles
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Solution Overview
Problem
Menthol-containing smokable materials used in combustible products are not optimal for aerosol-generating devices, as they provide an unsatisfactory sensory profile due to a brief cooling sensation at the start of use, which diminishes over time, differing from the progressive burn experience of traditional cigarettes.
Innovation Solution
Incorporating a cooling agent, such as compounds according to formula (I) or (II), into the smokable material of aerosol-generating devices, which can be combined with menthol, to enhance and prolong the cooling sensation, providing a more consistent sensory experience akin to combustible products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If menthol-containing smokable materials are used in aerosol-generating devices, then a cooling sensation is provided at the start of use, but the cooling sensation diminishes over time providing an unsatisfactory sensory profile
Solution Approach 1:
The patent combines menthol with specific cooling agents (compounds of formula I or II) to create a synergistic cooling effect. The cooling agent is applied to the tobacco component alongside menthol, and the pack chamber is lined with paper foil containing the cooling agent, creating multiple sources of cooling action that work together to maintain consistent cooling throughout the smoking session.
Solution Approach 2:
The cooling agent is pre-applied to the tobacco component during manufacturing, and the pack chamber is pre-lined with cooling agent-containing paper foil. This preliminary application ensures that cooling is immediately available upon first use and continues throughout the smoking session without requiring additional user action.
2Duration of action of moving object
If cooling agent is applied to tobacco component, then cooling sensation is enhanced and prolonged, but manufacturing process becomes more complex
Solution Approach 1:
The cooling agent is applied to the tobacco component during the manufacturing process, before the product reaches the consumer. This preliminary action integrates the cooling function into the product creation process, eliminating the need for complex in-use application mechanisms while still achieving enhanced and prolonged cooling sensation.
Solution Approach 2:
The cooling agent serves multiple functions: it provides cooling sensation, extends the duration of cooling, and when combined with menthol, creates a synergistic effect. The same cooling agent is applied both directly to the tobacco component and to the pack chamber lining, making it a multi-functional additive that addresses multiple requirements simultaneously.
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 inclusion of these cooling agents in aerosol-generating devices extends the duration and intensity of the cooling sensation, offering a more satisfying user experience by maintaining a consistent cooling effect throughout the smoking session.
Implementation Method 1
Incorporating a cooling agent, such as compounds according to formula (I) or (II), into the smokable material of aerosol-generating devices, which can be combined with menthol, to enhance and prolong the cooling sensation
Implementation Method 2
Apparatus is known that heats smokable material to volatilize at least one component of the smokable material, typically to form an aerosol which can be inhaled, without burning or combusting the smokable material
Data Source
AI summary
In one aspect an aerosol-generating device comprising a smoking article and a heat source is described. The smoking article includes a smokable material and a cooling agent, the smokable material including a tobacco component. The heat source is disposed to heat, but not burn the smokable material in use. The cooling agent comprises a compound or a combination of compounds according to either of the following formulae, racemates, enantiomers and salts thereof (I, II).