Coated Aerosol-Generating Material for Flavor and Nicotine Stability

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Solution Overview

Problem

Conventional aerosol-generating materials, particularly those containing tobacco extracts, suffer from volatility issues leading to decreased flavor and nicotine content over time, requiring high energy input and short shelf life due to moisture absorption.

Innovation Solution

A composition comprising a dried aerosol-generating material coated with a moisture-impermeable coating that decomposes at specific temperatures to release volatile components, maintaining flavor and nicotine concentration and extending shelf life.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional aerosol-generating materials are used, then volatile components are released, but flavor and nicotine content decrease over time due to volatility and moisture absorption

Engineering Contradiction:

Improvestability of flavor and nicotine contentVSAvoidshelf life

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent applies a moisture-impermeable coating in the form of a thin film surrounding the aerosol-generating material. This coating acts as a protective barrier that prevents moisture absorption from the environment, thereby maintaining the stability of flavor and nicotine content throughout the shelf life of the product.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The patent changes the physical-chemical parameters of the aerosol-generating material by drying the precursor material to reduce moisture content to below 5%, and by applying a moisture-impermeable coating. These parameter changes enhance stability and extend shelf life while preventing degradation of volatile components.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If high energy input is used to generate aerosol, then volatile components are released, but energy consumption increases

Engineering Contradiction:

Improveaerosol generation efficiencyVSAvoidenergy input for aerosol generation

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent optimizes the composition parameters of the aerosol-generating material, specifically the concentration of volatile active components (1-50% w/w) and aerosol-former material (50-95% w/w), to achieve efficient aerosol generation at lower energy inputs. The dried precursor material with reduced moisture content also contributes to lower energy requirements.

Inventive Principle:

Principle #35Parameter changes

3Quantity of substance

If the aerosol-generating material is dried to high concentration, then flavor and nicotine content are maintained, but the material becomes hygroscopic and absorbs moisture

Engineering Contradiction:

Improveconcentration of volatile active componentsVSAvoidmoisture absorption from environment

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent applies a moisture-impermeable coating as a protective thin film that prevents the dried, hygroscopic aerosol-generating material from absorbing moisture from the environment. This coating barrier maintains the high concentration of volatile active components by preventing degradation from moisture exposure during storage.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The moisture-impermeable coating acts as an intermediary barrier between the dried aerosol-generating material and the external environment. This intermediate layer prevents direct contact with atmospheric moisture, thereby protecting the hygroscopic material from moisture absorption while maintaining its high concentration of active components.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 solution provides a stable, high-concentration aerosol-generating material with extended shelf life and reduced energy requirements for aerosol generation, while preventing moisture absorption and maintaining flavor integrity.

Implementation Method 1

a moisture impermeable coating surrounding the aerosol-generating material... the moisture impermeable coating prevents or retards absorption of moisture by the aerosol-generating material from the surrounding environment

Methodology Applied

Scientific EffectMoisture impermeability: Permeation

Implementation Method 2

the moisture impermeable coating decomposes upon heating to allow volatile components generated by heating the aerosol-generating material to be released... the moisture impermeable coating decomposes at a temperature at or above about 100° C.

Methodology Applied

Scientific EffectThermal decomposition: Pyrolysis

Data Source

PatentUS20250212935A1A composition comprising a coated aerosol-generating material and uses thereof

Publication Date: 2025.07.03 NICOVENTURES TRADING LTD

AI summary

The invention relates to a composition comprising an aerosol-generating material comprising a dried precursor material comprising an extract from a flavour- and/or active-containing plant material and optionally an aerosol-former material, and a moisture impermeable coating surrounding the aerosol-generating material. The compositions may be used to generate an aerosol. For example, the compositions may be used in combustible or non-combustible aerosol-provision systems. The invention also relates to aerosol-provision systems comprising the compositions, and methods of providing a composition.