METHOD OF MAKING A NICOTINE CONTAINING SHEET

• US 20190328030A1
• Filed: 12/21/2017
• Published: 10/31/2019
• Est. Priority Date: 12/30/2016
• Status: Active Grant

• Current Assignee: Philip Morris Products SA (Philip Morris Limited)
• Original Assignee: Philip Morris Products SA (Philip Morris Limited)
• Inventors: DEFOREL, Corinne, WALLER, Judith, ZUBER, Gerard
• Granted Patent: US 11,744,276 B2
• Time in Patent Office: Days
• CPC Class Codes: A24B 15/12 of reconstituted tobacco
• CPC Class Codes: A24B 15/14 made of tobacco and a binding agent not derived from tobacco
• CPC Class Codes: A24B 3/14 Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products delustering A24C1/40
• CPC Class Codes: A24C 5/01 Making cigarettes for simulated smoking devices

Abstract

A method of making a nicotine containing sheet is provided, including steps of combining a source of nicotine salt having a cellulose content of less than about 5% by weight on a dry weight basis with a separate source of fibrous material having a nicotine salt content of less than about 5% by weight on a dry weight basis to form a mixture; and drying the mixture to form a sheet.

Claims

1-15. -15. (canceled)

16. A method of making a nicotine containing sheet, comprising:

combining a source of nicotine salt having a cellulose content of less than about 5% by weight on a dry weight basis with a separate source of fibrous material having a nicotine salt content of less than about 5% by weight on a dry weight basis to form a mixture; and

drying the mixture to form a sheet.

17. The method according to claim 16, wherein the source of nicotine salt comprises one or more nicotine salts of monoprotic carboxylic acids selected from the group consisting of acetic acid, benzoic acid, gallic acid, lactic acid, lauric acid, levulinic acid, palmitic acid, pyruvic acid, sorbic acid, and stearic acid.

18. The method according to claim 16, wherein a weight ratio of fibrous material to nicotine salt in the mixture on a dry weight basis is between about 15:

1 and about 1;

3.

19. The method according to claim 16, wherein the source of nicotine salt comprises one or more monoprotic nicotine salts.

20. The method according to claim 16, wherein the combining comprises combining cellulose powder with the source of nicotine salt and the separate source of fibrous material to form the mixture.

21. A sheet formed according to claim 20, wherein the cellulose powder has an average particle size of less than about 60 microns.

22. The method according to claim 16, wherein the combining comprises combining sugar with the source of nicotine salt and the separate source of fibrous material to form the mixture.

23. The method according to claim 22, wherein the sugar comprises mannitol, sorbitol, or a combination thereof.

24. The method according to claim 16, wherein the combining comprises combining a binder with the source of nicotine salt and the separate source of fibrous material to form the mixture.

25. The method according to claim 24, wherein the binder comprises one or more natural gum binders selected from the group consisting of guar gum, xanthan gum, and gum arabic.

26. The method according to claim 16, wherein the combining comprises combining an aerosol former with the source of nicotine salt and the separate source of fibrous material to form the mixture.

27. The method according to claim 16, wherein the drying comprises drying the mixture at a temperature of between about 100°

C. and about 170°

C. for at least about 2 minutes.

28. The method according to claim 16, further comprising:

casting the mixture onto a support surface prior to the drying.

29. The method according to claim 16, further comprising:

gathering the sheet transversely relative to a longitudinal axis thereof;

circumscribing the gathered sheet with a wrapper to form a rod; and

severing the rod into a plurality of discrete aerosol-generating rods.

30. The method according to claim 29, further comprising:

crimping the sheet prior to the gathering.