Liquid-type inhalation formulation for use in surface wave atomizer, and cartridge and aerosol-generating apparatus comprising same

The liquid-type inhalation formulation for surface wave atomizers, using propylene glycol, glycerin, and physiological saline, addresses inefficiencies in high-viscosity liquid atomization, ensuring stable and continuous aerosol generation without temperature rise, enhancing atomization efficiency and pulmonary delivery.

US20260182617A1Pending Publication Date: 2026-07-02KT&G CO LTD

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
KT&G CO LTD
Filing Date
2023-06-02
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Existing aerosol-generating technologies face challenges in continuously and stably atomizing liquids with high viscosity without temperature rise or failure, particularly in ultrasonic and electrical heating systems, leading to inefficiencies and health risks from high-temperature vaporization.

Method used

A liquid-type inhalation formulation for surface wave atomizers, comprising propylene glycol, glycerin, and physiological saline, with a viscosity range of 1.0 to 120 mPa·s and a glycerin content of 50 wt%, which uses surface waves to stabilize atomization and facilitate pulmonary delivery.

Benefits of technology

Stable and continuous atomization is achieved across a wide viscosity range, reducing health risks and improving atomization efficiency, allowing for the use of functional materials and flavoring agents in aerosol generation.

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Abstract

The present invention is directed to a liquid-type inhalation formulation for a surface wave atomizer, and a cartridge and an aerosol-generating apparatus comprising same, wherein the inhalation formulation has a viscosity of 1.0-120 mPa·s at 20° C. and comprises at least one selected from the group consisting of propylene glycol, glycerin, and physiological saline, the content of the glycerin being 50 wt % or more relative to the total weight of the propylene glycol, glycerin, and physiological saline.
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