Granted Patent B2

US 12,628,862 · App. 17/615,686 · Granted May 19, 2026

Inventors: Matteo Biasioli (Neuchatel, CH); Marie Farine (Neuchatel, CH); Felix Frauendorfer (Neuchatel, CH); Jagoda Kuc (Neuchatel, CH); Sebastien Lanaspeze (Neuchatel, CH); Stefan Lauenstein (Neuchatel, CH); Benoit Mivelaz (Neuchatel, CH); Christel Raphoz (Neuchatel, CH); Patrick Charles Silvestrini (Neuchatel, CH); Steve Tzimoulis (Neuchatel, CH)

Assignee: Philip Morris Products S.A.

A24B15/243A24B15/167

Abstract

Claims (45)

1 . A liquid tobacco extract, comprising:

tobacco volatiles removed from a natural tobacco material with heating in an inert gas stream and collected from the inert gas stream away from the natural tobacco material; and

a non-aqueous solvent,

wherein

the natural tobacco material is not subjected to any treatment adapted to alter the pH of the natural tobacco,

the liquid tobacco extract is a homogeneous liquid,

the tobacco volatiles collected from the inert gas stream comprises β-ionone, β-damascenone and phenol,

a content of nicotine collected from the tobacco volatiles is at least 0.2 percent by weight of the liquid tobacco extract, and

a ratio by weight of the collected volatiles (β-ionone+β-damascenone) to collected volatile phenol in the liquid tobacco extract is greater than 0.25.

2 . The liquid tobacco extract according to claim 1 ,

further comprising water,

wherein the liquid tobacco extract comprises greater than 20 percent by weight of water based on the weight of the liquid tobacco extract.

3 . The liquid tobacco extract according to claim 2 , wherein the liquid tobacco extract comprises at least about 40 percent by weight of water based on the weight of the liquid tobacco extract.

4 . The liquid tobacco extract according to claim 2 , wherein the liquid tobacco extract comprises between 40 percent by weight and 70 percent by weight water based on the weight of the liquid tobacco extract.

5 . The liquid tobacco extract according to claim 1 ,

further comprising water,

wherein the liquid tobacco extract is a concentrated tobacco extract comprising less than or equal to about 20 percent by weight of water based on the weight of the concentrated tobacco extract.

6 . The liquid tobacco extract according to claim 1 ,

further comprising water,

wherein the liquid tobacco extract is a concentrated tobacco extract comprising between 8 percent and 15 percent by weight water based on the weight of the concentrated tobacco extract.

7 . The liquid tobacco extract according to claim 1 , wherein the ratio by weight of collected volatiles (β-ionone+β-damascenone) to collected volatile phenol is greater than 0.5.

8 . The liquid tobacco extract according to claim 1 , wherein the ratio by weight of collected volatiles (β-ionone+β-damascenone) to collected volatile phenol is greater than 1.

9 . The liquid tobacco extract according to claim 1 , wherein the ratio by weight of collected volatiles (β-ionone+β-damascenone) to collected volatile phenol is greater than 2.

10 . The liquid tobacco extract according to claim 1 , wherein the liquid tobacco extract comprises between 0.4 percent by weight and 3.6 percent by weight nicotine based on the weight of the liquid tobacco extract.

11 . The liquid tobacco extract according to claim 1 , wherein

the tobacco volatiles collected from the inert gas stream further comprises 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone, (R,S)-N-nitrosoanatabine, (R,S)-N-nitrosoanabasine, N-nitrosonornicotine, and 2-furanemethanol), and

a ratio by weight of collected volatiles (β-ionone+β-damascenone) to collected volatiles (4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone+(R,S)-N-nitrosoanatabine+(R,S)-N-nitrosoanabasine+N-nitrosonornicotine+((2-furanemethanol)/600)) is greater than 1.5.

12 . The liquid tobacco extract according to claim 1 , wherein the natural tobacco material comprises Burley tobacco and Bright tobacco.

13 . The liquid tobacco extract according to claim 12 , wherein the Bright tobacco is one or more of Oriental tobacco and flue-cured tobacco.

14 . The liquid tobacco extract according to claim 1 , wherein the non-aqueous solvent is glycerine, propylene glycol, triacetin, 1,3-propanediol, or a mixture thereof.

15 . The liquid tobacco extract according to claim 1 , wherein the tobacco volatiles collected from the inert gas stream further comprises one or more collected volatile selected from the group consisting of furaneol, 2,3-diethyl-5-methylpyrazine, acetic acid, vanillin, 2-ethyl-3,5-dimethylpyrazine, 2-methylbutanoic acid, 3-methylbutanoic acid, 3-methyl-2,4-nonanedione, 2-methoxyphenol, 2-phenylethanol, eugenol, and sotolone.

16 . The liquid tobacco extract according to claim 15 , wherein the liquid tobacco extract comprises at least 300 micrograms of acetic acid per gram of the liquid tobacco extract.

17 . A cartridge, comprising:

a nicotine composition,

wherein the nicotine composition comprises the liquid tobacco extract of claim 1 .

18 . A liquid tobacco extract, comprising a non-aqueous solvent, nicotine, and tobacco volatiles removed from a tobacco material with heating in an inert gas stream and collected from the inert gas stream away from the tobacco material, wherein

a ratio by weight of (β-ionone+β-damascenone) in the collected tobacco volatiles to phenol in the collected tobacco volatiles is greater than 0.25, prepared by a method comprising:

heating a tobacco starting material at an extraction temperature of between 100 degrees Celsius and 160 degrees Celsius for at least 90 minutes in an inert gas stream;

collecting volatile compounds released from the tobacco starting material in the inert gas stream during the heating of the tobacco starting material; and

obtaining the liquid tobacco extract comprising the collected volatile compounds as a homogeneous liquid.

19 . The liquid tobacco extract of claim 18 ,

wherein the liquid tobacco extract further comprises water, and

the method further comprises desiccating the liquid tobacco extract to obtain a concentrated tobacco extract.

20 . The liquid tobacco extract of claim 18 , wherein the extraction temperature is between 125 degrees Celsius and 160 degrees Celsius.

21 . The liquid tobacco extract of claim 18 , wherein the extraction temperature is between 125 degrees Celsius and 140 degrees Celsius.

Assignments (2)

Priority Claims (1)

Continuity (1)

References Cited (40)