AEROSOL GENERATING MATERIAL AND DEVICES INCLUDING THE SAME

• US 20160295922A1
• Filed: 11/14/2014
• Published: 10/13/2016
• Est. Priority Date: 11/15/2013
• Status: Active Grant

• Current Assignee: Nicoventures Trading Ltd. (British American Tobacco PLC)
• Original Assignee: British American Tobacco Limited (British American Tobacco PLC)
• Inventors: John, Edward, Symonds, Jason, Aoun, Walid Abi
• Granted Patent: US 10,271,578 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A24B 15/16 of tobacco substitutes
• CPC Class Codes: A24F 40/20 Devices using solid inhalable precursors
• CPC Class Codes: A24F 40/46 Shape or structure of electric heating means
• CPC Class Codes: B05D 7/24 for applying particular liquids or other fluent materials
• CPC Class Codes: H05B 2203/017 Manufacturing methods or apparatus for heaters
• CPC Class Codes: H05B 3/10 Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor

Abstract

There is provided a device for generating an inhalable aerosol and/or gas, the device comprising an aerosol generating material (3) having an integrated electrical resistance heating element (2), so that the aerosol generating material may be heated in direct contact with the electrical resistance heating element, wherein the aerosol generating material is provided as a unitary structure and/or coating which may be heated to generate multiple deliveries of an inhalable aerosol and/or gas. There is also provided a method for fabricating the device. There is also provided the use of the device and the use of the aerosol generating material, to generate an inhalable aerosol and/or gas.

Claims

1. A device for generating at least one of an inhalable aerosol or a gas, the device comprising:

an aerosol generating material having an integrated electrical resistance heating element, so that the aerosol generating material may be heated in direct contact with the electrical resistance heating element, wherein the aerosol generating material is provided as at least one of a unitary structure or a coating which may be heated to generate multiple deliveries of at least one of an inhalable aerosol or a gas;

wherein the aerosol generating material comprises nicotine; and

wherein at least part of the electrical resistance heating element is in the form of a mesh or a coil.

5. A device according to claim 1, wherein the aerosol generating material may be repeatedly heated by the heating element to generate deliveries of inhalable aerosol or gas.

6. A device according to claim 1, wherein the aerosol generating material comprises an aerosol generating agent.

7. A device according to claim 1, wherein the aerosol generating material comprises tobacco material.

8. A device according to claim 1, wherein the aerosol generating material comprises an inorganic filler material.

9. A device according to claim 1, wherein the aerosol generating material comprises a binder.

11. A device according to claim 1, wherein at least part of the aerosol generating material is at least partially surrounded by the electrical resistance heating element.

12. A device according to claim 1, wherein a first portion of the aerosol generating material may be heated independently from a second portion of the aerosol generating material by the electrical resistance heating element.

13. A device according to claim 12, wherein the first portion and the second portion have different chemical compositions.

14. A device according to claim 1, wherein at least one portion of the aerosol generating material must be moved from a first position to a second position in order to be heated by the electrical resistance heating element.

15. A device according to claim 1, wherein the heating of the aerosol generating material by the electrical resistance heating element is to be initiated or controlled by the user of the device.

16. A device according to claim 1, wherein the device is a heat-not-burn device.

17. A method for fabricating a device for generating at least one of an inhalable aerosol or a gas according to claim 1, wherein the method comprises applying a slurry of aerosol generating material to an electrical resistance heating element.

18. A method according to claim 17, wherein the slurry is applied by casting the slurry onto the electrical resistance heating element.

19. A method according to claim 17, wherein the slurry is applied by dipping the electrical resistance heating element into the slurry.

20. A method according to claim 17, wherein the slurry is extruded with or onto the electrical resistance heating element.

21. Use of a device according to claim 1 for the generation of at least one of an aerosol or a gas comprising nicotine.

22. Use of an aerosol generating material as defined in claim 116 for the generation of at least one of an aerosol or a gas comprising nicotine by heating the material in direct contact with an electrical resistance heating element.

2. A device for generating at least one of an inhalable aerosol or a gas, the device comprising:

an aerosol generating material having an integrated electrical resistance heating element, so that the aerosol generating material may be heated in direct contact with the electrical resistance heating element, wherein the aerosol generating material is provided as at least one of a unitary structure or a coating which may be heated to generate multiple deliveries of at least one of an inhalable aerosol or a gas;

wherein the aerosol generating material is a cast or extruded material.

3. A device according to claim 2, wherein the aerosol generating material comprises nicotine.

4. A device according to claim 2, wherein at least part of the electrical resistance heating element is in the form of a mesh or a coil.

10. A device according to claim 2, wherein at least part of the electrical resistance heating element is at least partially embedded in, or coated by, the aerosol generating material.

23. A composite structure comprising:

an electrical resistance heating element, which is at least partially embedded in, or coated by, an aerosol generating material, wherein the material is in direct contact with the electrical resistance heating element and may be heated to generate multiple deliveries of at least one of an inhalable aerosol or a gas.

24. A composite structure as claimed in claim 23, wherein the electrical resistance heating element is a mesh.

25. A composite structure as claimed in claim 23, wherein the structure may be moved to heat different portions of the structure.

26. A composite structure as claimed in claim 23, wherein different portions of the structure may be heated independently by separate power sources or by switching the supply of power from one portion to another.

27. A composite structure as claimed in claim 23, wherein the composite structure is in the form of an elongate ribbon or band.

28. A composite structure as claimed in claim 23, wherein the aerosol generating material is provided as a unitary structure or a coating and comprises nicotine.

29. An article comprising a composite structure as claimed in claim 23, and a means for moving the composite structure to allow different portions thereof to be heated.

30. An article as claimed in claim 29, wherein the composite structure is in the form of an elongate ribbon or band and the means for moving the composite structure is a spool.