SMOKING ARTICLE

• US 20100300467A1
• Filed: 01/21/2009
• Published: 12/02/2010
• Est. Priority Date: 01/22/2008
• Status: Abandoned Application

• Current Assignee: Stagemode Oy
• Original Assignee: Stagemode Oy
• Inventors: Kunnari, Vesa, Kuistila, Kaj, Hurme, Eero
• Application Number:
  US12/863,686
• Publication Number:
  US 20100300467A1
• Time in Patent Office: Days
• US Class Current: 131/328
• CPC Class Codes: A24B 15/165 comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material
• CPC Class Codes: A24F 42/10 Devices with chemical heating means
• CPC Class Codes: A24F 42/80 Manufacture

Abstract

The invention relates to a smoking article comprising tobacco, suction resistance and a chemical heat source in conjunction with the tobacco. According to the invention, the heat source comprises a heat chamber and is activated by external excitation. The invention relates further to a method for producing the smoking article.

Claims

1. A smoking article, comprising:

tobacco;

suction resistance;

chemical heat source in conjunction with the tobacco, wherein the heat source comprises a heat chamber formed by one continuous volume and that the heat source is activated by external heat and/or oxygen excitation.

2. The smoking article according to claim 1, wherein the heat chamber is closed.

3. The smoking article according to claim 1, wherein the heat chamber contains chemical compounds which are capable of producing heat.

4. The smoking article according to claim 1, wherein the chemical compounds include a metal/metals, such as Fe, Al, Mg, Li, Co, Pt, Pd, Cu, Si and/or a strong oxygen-containing oxidizer.

5. The smoking article according to claim 1, wherein the material of the heat chamber is a polymer-, paper-, natural fiber-, ceramic-, glass- and/or metal-based material.

6. The smoking article according to claim 1, wherein the heat chamber is provided with a heat insulating and/or accumulating layer.

7. The smoking article according to claim 1, wherein the chemical compounds in the heat chamber include iron and potassium permanganate, their reaction being activated by heat.

8. The smoking article according to claim 1, wherein the weight ratio between the potassium permanganate and iron ranges from 5/95 to 95/5, preferably from 25/75 to 50/50 and is more preferably 30/70.

9. The smoking article according to claim 1, wherein the chemical compounds in the heat chamber include Fe, Na₂S, C and CaO, their reaction being activated by oxygen.

10. The smoking article according to claim 1, wherein the suction resistance is a filter.

11. The smoking article according to claim 1, wherein the article further comprises a starting heat providing element.

12. The smoking article according to claim 1, wherein the starting heat providing element is a detonator, resistance wire, fuse and/or firing tape.

13. The smoking article according to claim 1, wherein the article further comprises a cooling part.

14. The smoking article according to claim 1, wherein the heat chamber is surrounded by the tobacco.

15. The smoking article according to claim 1, wherein the tobacco is surrounded by the heat chamber.

16. A method for producing the smoking article, the method comprising the steps of:

forming the heat chamber by combining the chemical compounds and enclosing them inside the heat chamber,

contacting a layer of tobacco with the heat chamber,

disposing suction resistance at one end of the smoking article, and

coating the heat chamber contacted with the layer of tobacco.

17. The method according to claim 16, wherein a heat insulating and/or accumulating layer is disposed between the heat chamber and the tobacco.

18. The method according to claim 16, wherein an insulating layer is disposed onto the tobacco or the heat chamber before coating or in conjunction with the coating.

19. The method according to claim 16, wherein a cooling part is disposed at one end of the smoking article before coating or in conjunction with the coating.

20. The method according to claim 19, wherein the cooling part is disposed between suction resistance and tobacco.

21. A method for producing the smoking article, the method comprising the steps of:

fixing the chemical compounds onto a planar structure,

rolling the structure to form a tubular structure,

disposing the tobacco inside or outside the tubular structure.

22. The method according to claim 21, wherein the planar structure includes tobacco paper, an insulating layer and/or a heat accumulating layer.

23. The method according to claim 21, wherein a protective film, insulating and/or accumulating layer is disposed onto the chemical compounds preferably by lamination.