Immobilized flavorants for flavor delivery

Patent metadata

Field	Value
Publication number	US-11957153-B2
Application number	US-202016911813-A
Country	US
Kind code	B2
Filing date	Jun 25, 2020
Priority date	Oct 9, 2009
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

Disclosed is a copolymer that includes a repeat unit containing a flavorant-containing pendant and a salt-containing repeating unit. In addition, a comestible, a smoking composition, a smoking article, a smokeless tobacco composition and a heatable or combustible product are provided which incorporate one or more of the flavorant-containing copolymer.

First claim

The invention claimed is:

1. A smoking article for an electrical smoking system, the smoking article comprising:
a smokable material; and
a polymer including a flavorant-containing repeating unit and a salt-containing repeating unit, the flavorant-containing repeating unit including a flavorant linked to a backbone of the polymer with a non-carbonate linking group configured to release the flavorant when heated, the flavorant including a first flavorant and a second flavorant, wherein the first flavorant and the second flavorant are bound to the polymeric backbone through the non-carbonate linking group.

2. The smoking article of claim 1 , wherein the smokable material includes tobacco or a tobacco substitute.

3. The smoking article of claim 1 , wherein the smokable material is in a form of a rod.

4. The smoking article of claim 3 , further comprising:
a filter attached to the rod.

5. The smoking article of claim 1 , wherein the polymer is within the smokable material.

6. The smoking article of claim 1 , wherein the polymer is present in an amount of 0.001 to 10 weight percent based on a weight of the smokable material.

7. The smoking article of claim 1 , wherein the polymer has a number average molecular weight (M n ) between 2,000 to 5,000 daltons.

8. The smoking article of claim 1 , wherein the polymer includes polyester, polyimide, polyurethane, polyethylene, polypropylene, poly(meth)acrylate, poly(itaconate), or polyacrylonitrile.

9. The smoking article of claim 8 , wherein the flavorant-containing repeating unit includes a (meth)acrylate repeating unit.

10. The smoking article of claim 8 , wherein the flavorant-containing repeating unit includes an itaconate repeating unit.

11. The smoking article of claim 1 , wherein the flavorant includes a compound with at least one hydroxyl, carboxyl, aldehyde, or ketone group.

12. The smoking article of claim 11 , wherein the compound includes one or more of menthol, vanillin, linalool, guaicol, thymol, coumarin, eugenol, cinnamaldehyde, geraniol, and carvone.

13. The smoking article of claim 12 , wherein the compound includes menthol.

14. The smoking article of claim 1 , wherein the salt-containing repeating unit includes a salt including one or more of sodium, potassium, magnesium, and calcium.

15. The smoking article of claim 1 , wherein the non-carbonate linking group is an ester, ether, hemiacetal, hemiketal, acetal or ketal linking group.

16. The smoking article of claim 1 , wherein the first flavorant is different from the second flavorant.

Assignees

• Philip Morris Usa Inc

Inventors

• Liu Shengsheng
• Mishra Munmaya K
• Lipowicz Peter J
• Duan Biao

Classifications

• 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

• A23L27/201

  Compounds of unspecified constitution characterised by the chemical reaction for their preparation (A23L27/215 takes precedence) · CPC title

• A24B15/284

  the additive being bound to a host by chemical, electrical or like forces, e.g. use of precursors, inclusion complexes · CPC title

• A24B15/30

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

• A24F40/30

  Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges · CPC title