Smokeless oral tobacco product and preparation thereof

Patent metadata

Field	Value
Publication number	US-10874134-B2
Application number	US-201314648392-A
Country	US
Kind code	B2
Filing date	Dec 18, 2013
Priority date	Dec 20, 2012
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A smokeless oral tobacco product is provided comprising an insoluble foamed material. The insoluble foamed material is formed by combining a foaming agent, an agent capable of forming chemical cross-linkages and a cross-linking agent. A method of producing a smokeless oral tobacco product comprising an insoluble foamed material is also provided.

First claim

The invention claimed is:

1. An oral tobacco product, comprising:
tobacco; and an insoluble foamed material, the insoluble foamed material being a combination of a foaming agent, a chemically cross-linkable agent capable of forming chemical cross-linkages, and a cross-linking agent,
wherein the insoluble foamed material is insoluble in the mouth of a user,
wherein the insoluble foamed material has a density of 0.3 g/cc to 0.7 g/cc such that saliva diffuses into the oral tobacco product and that substances diffuse from the oral tobacco product into the mouth of the user;
wherein the insoluble foamed material has a moisture content of at least 35%, and
wherein the oral tobacco product is smokeless, and wherein the oral tobacco product is configured to be placed in the oral cavity of a user providing contact between the user's saliva and the oral tobacco product;
wherein the oral tobacco product comprises a pouch surrounding the insoluble foamed material.

2. The oral tobacco product according to claim 1 , wherein the chemically cross-linkable agent capable of forming chemical cross-linkages comprises at least one of an alginate and/or a pectin.

3. The oral tobacco product according to claim 1 , wherein the cross-linking agent is a source of polyvalent cations.

4. The oral tobacco product according to claim 3 , wherein the cross-linking agent is tobacco and/or calcium carbonate.

5. The oral tobacco product according to claim 1 , wherein the foaming agent comprises a substituted cellulose.

6. The oral tobacco product according to claim 1 , wherein the tobacco comprises particulate tobacco.

7. The oral tobacco product according to claim 1 , wherein the tobacco comprises moist snuff.

8. The oral tobacco product according to claim 6 , wherein the particulate tobacco has a particle size of between about 0.1 mm and 1.0 mm.

9. The oral tobacco product according to claim 1 , wherein the moisture content of the tobacco is less than about 55%.

10. A consumer package comprising the oral tobacco product of claim 1 .

11. The oral tobacco product according to claim 2 , wherein the alginate is sodium alginate.

12. The oral tobacco product according to claim 3 , wherein the cross-linking agent is a Ca 2+ ion source.

13. The oral tobacco product according to claim 7 , wherein the tobacco comprises Swedish-style snuff.

14. The oral tobacco product according to claim 1 , wherein the oral tobacco product is in the form of a sphere, tablet, or disk.

15. The oral tobacco product according to claim 1 , wherein the cross-linking agent is in the form of particles having a particle diameter of from 1 μm to 250 μm.

Assignees

• British American Tobacco Investments Ltd

Inventors

• Sutton Joseph Peter

Classifications

• A24B15/42

  by organic and inorganic substances {(A24B15/281 takes precedence)} · CPC title

• A24B15/302

  by natural substances obtained from animals or plants · CPC title

• A24B15/14

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

• A24B13/00 Primary

  Tobacco for pipes, for cigars, e.g. cigar inserts, or for cigarettes; Chewing tobacco; Snuff (reconstituted tobacco products A24B3/14) · CPC title

• A24B15/28

  by chemical substances · CPC title