Non-Heating Aerosol Composition for Stable WS-3 Menthol Transfer
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Solution Overview
Problem
Existing non-heating-type aerosol generating systems face limitations in menthol transfer, leading to reduced refreshing sensation and satisfaction due to solubility issues with cooling agents and humectants, particularly with WS-3, which has low solubility and limited content addition.
Innovation Solution
A composition comprising propylene glycol (PG), vegetable glycerin (VG), WS-3, and menthol, optionally with WS-23, is used to enhance menthol transfer, balancing solubility and content to provide a refreshing sensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the amount of cooling agent (WS-3) is increased to enhance menthol transfer, then menthol transfer amount increases, but solubility with humectant deteriorates due to low solubility of WS-3
Solution Approach 1:
The patent introduces WS-23 as an intermediary cooling agent that bridges the gap between menthol transfer enhancement and solubility maintenance. WS-23 has higher solubility than WS-3 while still providing cooling sensation, allowing it to serve as a mediator that enables increased menthol transfer without causing precipitation issues associated with high concentrations of WS-3
Solution Approach 2:
The patent creates a composite cooling system by combining WS-3 and WS-23 in specific ratios (e.g., WS-3: 0.1-5 wt%, WS-23: 0.1-5 wt%). This composite approach leverages the complementary properties of both substances - WS-3 provides strong cooling sensation while WS-23 enhances solubility and stability, achieving both high menthol transfer and compositional stability
2Reliability
If the content of cooling agent is increased to improve refreshing sensation, then menthol transfer increases, but precipitation occurs due to solubility limitations
Solution Approach 1:
The patent changes the chemical composition parameters of the cooling agent system by introducing WS-23 alongside WS-3. This parameter change (adding a second cooling agent component) modifies the solubility characteristics of the mixture, allowing higher overall cooling agent content without precipitation. The specific ratio ranges (0.1-5 wt% for each component) are optimized to maintain solution stability while maximizing refreshing sensation
3Quantity of substance
If cooling agent is added to non-heating-type aerosol system, then menthol transfer improves, but solubility with humectant becomes problematic
Solution Approach 1:
WS-23 serves as a solubility mediator that enables better integration of cooling agents with humectants (PG and VG). Its molecular structure provides improved compatibility with common aerosol formulation components, reducing precipitation issues and simplifying the manufacturing process compared to using WS-3 alone at high concentrations
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 composition significantly increases menthol transfer, providing enhanced refreshing sensation and satisfaction by synergistic effects of WS-3 and WS-23, overcoming solubility limitations and precipitation concerns.
Implementation Method 1
The composition significantly increases menthol transfer, providing enhanced refreshing sensation and satisfaction by synergistic effects of WS-3 and WS-23
Implementation Method 2
balancing solubility and content to provide a refreshing sensation, overcoming solubility limitations and precipitation concerns
Data Source
AI summary
Provided are a composition for an aerosol generating system, the composition including a humectant including propylene glycol (PG) and vegetable glycerin (VG), WS-3, and menthol, and a cartridge and an aerosol generating system including the same.