Menthol cigarette

Patent metadata

Field	Value
Publication number	US-11700877-B2
Application number	US-202016811169-A
Country	US
Kind code	B2
Filing date	Mar 6, 2020
Priority date	Sep 30, 2005
Publication date	Jul 18, 2023
Grant date	Jul 18, 2023

Abstract

Cigarettes are provided which contain a filtering system and flavorants encapsulated with polyvinyl acetate, wherein deactivation of a sorbent by the flavorant is reduced through the encapsulation of the flavorant within the polyvinyl acetate. A preferred flavorant is menthol. The encapsulated flavorants are prepared by mixing at least one flavorant with polyvinyl acetate and a solvent, such as ethanol, and forming the encapsulated flavorants. Methods of making cigarettes and smoking the articles are also provided.

First claim

What is claimed is:

1. A method of making a component of a non-traditional cigarette, comprising:
incorporating an encapsulated flavorant including a triacetin-free polyvinyl acetate matrix with menthol bound within the polyvinyl acetate matrix as a film on the component, the menthol being substantially uniformly distributed throughout the matrix.

2. The method of claim 1 , wherein the component comprises a wrapper or tobacco mat.

3. The method of claim 1 , wherein the encapsulated flavorant is formed by:
mixing alcohol and polyvinyl acetate;
reducing the alcohol content in the menthol-alcohol-polyvinyl acetate mixture; and
forming a menthol-polyvinyl acetate film from the menthol-alcohol-polyvinyl acetate mixture.

4. The method of claim 1 , wherein the encapsulated flavorant is formed by:
mixing alcohol and polyvinyl acetate;
aging the menthol-alcohol-polyvinyl acetate mixture; and
forming a menthol-polyvinyl acetate film from the menthol-alcohol-polyvinyl acetate mixture.

5. The method of claim 1 , wherein the film is formed by spraying a solution containing the encapsulated flavorant onto the component.

6. The method of claim 1 , wherein the menthol comprises at least 55% by weight of the encapsulated flavorant.

Assignees

• Philip Morris Usa Inc

Inventors

• Becker Ulrike
• Howell Tony
• Xue Lixin
• Karles Georgios D
• Fournier Jay A

Classifications

• A24D1/002 Primary

  with additives, e.g. for flavouring · CPC title

• A23L27/74

  with a synthetic polymer matrix or excipient, e.g. vinylic, acrylic polymers · CPC title

• A23L27/77

  Use of inorganic solid carriers, e.g. silica · CPC title

• A24B15/282

  by indirect addition of the chemical substances, e.g. in the wrapper, in the case · CPC title

• A24B15/283

  by encapsulation of the chemical substances · CPC title