Use of a composition containing 1,3-propanediol as e-liquid

Abstract

A composition containing 1,3-propanediol for use as electronic cigarette liquid. A liquid composition for an electronic cigarette, including 1,3-propanediol, as well as at least one compound selected from nicotine, a nicotine substitute, and an aroma, and an electronic cigarette containing this composition.

Description

TECHNICAL FIELD[0001]The present invention relates to the use of a composition containing 1,3-propanediol as electronic cigarette liquid. It also relates to a liquid composition for an electronic cigarette including 1,3-propanediol as well as nicotine and / or at least one aroma, and to an electronic cigarette containing this composition.BACKGROUND OF THE INVENTION[0002]The electronic cigarette market is currently expanding greatly, because it allows the consumer to preserve the ritual associated with the use of the cigarette without suffering the detrimental effects of the harmful substances that it contains.[0003]The electronic cigarette or e-cigarette works with electricity without combustion. It produces a mist of fine particles, commonly referred to as vapor or artificial smoke, which visually resembles the smoke produced by the combustion of tobacco. This vapor can be flavored (tobacco, mint, fruit, chocolate aroma, etc.) and it may or may not contain nicotine. In correctly manu...

AI Technical Summary

Benefits of technology

The patent text describes the use of 1,3-propanediol in electronic cigarettes to improve the throat hit and ease of inhaling the vapor produced by the liquid. It also mentions that 1,3-propanodiol can be used in electronic cigarettes containing nicotine to enhance the bioavailability of the nicotine. Additionally, using 1,3-propanodiol in electronic cigarettes can strengthen the aromatic power and minimize or eliminate the formation of coproducts of thermolysis.

Problems solved by technology

However, this objective is achieved at the expense of the longevity of the heating resistors which very rapidly become fouled.

In addition, the quality of the smoke emitted is far from being appropriate in terms of vapor density, and the organoleptic properties of the liquids are greatly modified, because the release of the aromas is less immediate in the absence of propylene glycol.

But again, the impact of a high water content radically modifies the quality of the vapor released and leads to excessive corrosion of the materials as well as to rapid and excessive consumption of the e-liquid (faster vaporization).

Finally, another problem connected with the exclusive use of glycerol lies in the fact that this compound is clearly less vaporizable than propylene glycol, so that its vaporization requires a clearly higher heating temperature which can result in its degradation and the formation of undesirable byproducts such as acrolein.

Consequently, the use of synthetic propylene glycol in a larger quantity than the glycerol is usually preferable, which does not allow the manufacturers to claim a natural origin for their products.

In addition, propylene glycol is obtained by a process which is among the most energy-consuming methods of petrochemistry and consequently has a large environmental footprint (Eissen & al., Angew. Chem. Int. Ed.

However, said product has all the above-mentioned disadvantages connected with the use of propylene glycol and of glycerol.

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