Material for inclusion in a smoking article

Patent metadata

Field	Value
Publication number	US-10765141-B2
Application number	US-201615542177-A
Country	US
Kind code	B2
Filing date	Jan 5, 2016
Priority date	Jan 7, 2015
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

The invention relates to a smokeable sheet material for inclusion in a smoking article (1), the sheet material comprising greater than 39.5% by weight acacia gum.

First claim

The invention claimed is:

1. A smokeable sheet material for inclusion in a smoking article, the sheet material comprising a filler and greater than 39.5% acacia gum by weight, wherein the sheet material does not comprise substantially solid or particulate matter of a size greater than 50 μm, wherein the sheet material comprises no more than 25% tobacco by weight.

2. A smokeable sheet material according to claim 1 , comprising at least 39.9, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 55, 60, 65, 70, 75, 80 or 85% acacia gum by weight.

3. A smokeable sheet material according to claim 1 , wherein the filler comprises one or more of alginate, chalk and glycerol.

4. A smokeable sheet material according to claim 1 , wherein the sheet material comprises no more than 20%, 15%, 10%, 5%, 4%, 3%, 2%, 1% or 0.5% tobacco by weight.

5. A smokeable sheet material according to claim 1 , wherein the sheet material does not comprise tobacco.

6. A method of preparing a sheet of smokeable material for inclusion in a smoking article wherein the method comprises preparing, casting and drying a solution or slurry comprising a filler and acacia gum, wherein the amount of acacia gum in the solution or slurry is at least 39.5% by weight of the solid content of the solution or slurry, wherein the solution or slurry prior to casting does not comprise solid or particulate matter of a size greater than 50 μm, where the amount of tobacco in the solution or slurry is no more than 25% by weight of the solid content of the solution or slurry.

7. A method as claimed in claim 6 , wherein the amount of acacia gum in the solution or slurry is at least 39.9, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 55, 60, 65, 70, 75, 80 or 85% by weight of the solid content of the solution or slurry.

8. A method as claimed in claim 6 , where the filler comprises one or more of alginate, chalk or glycerol.

9. A method as claimed in claim 6 , where the amount of tobacco in the solution or slurry is no more than 20%, 15%, 10%, 5%, 4%, 3%, 2%, 1% or 0.5% by weight of the solid content of the solution or slurry.

10. A smoking article comprising a smokeable sheet material according to claim 1 .

11. A smoking article as claimed in claim 10 , further comprising tobacco.

12. A smokeable sheet material configured to reduce the level of one or more of the constituents of mainstream smoke generated upon use of a smoking article, wherein the sheet material comprises a filler, and greater than 39.5% acacia gum by weight, wherein the sheet material does not comprise substantially solid or particulate matter of a size greater than 50 μm, wherein the sheet material comprises no more than 25% tobacco by weight.

13. A smokeable sheet material according to claim 2 , wherein the filler comprises one or more of alginate, chalk and glycerol.

14. A smokeable sheet material according to claim 2 , wherein the sheet material does not comprise tobacco.

15. A smoking article comprising a smokeable sheet material according to claim 2 .

16. A smoking article comprising a smokeable sheet material according to claim 3 .

17. A smoking article comprising a smokeable sheet material according to claim 4 .

18. A smoking article comprising a smokeable sheet material according to claim 5 .

Assignees

• British American Tobacco Investments Ltd

Inventors

• John Edward
• Benning Joceyln
• Coburn Steven
• Lance Alice

Classifications

• A24B15/16 Primary

  of tobacco substitutes · CPC title

• A24B15/14

  made of tobacco and a binding agent not derived from tobacco · CPC title

• A24B15/303

  Plant extracts other than tobacco · CPC title

• A24B15/12

  of reconstituted tobacco · CPC title