Temperature sensitive powder for enhanced flavor delivery in smoking articles
US8286642B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2009 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Feb 23, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D1/20
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Improved delivery of additive materials to mainstream smoke produced by smoking articles is provided through the use of a temperature sensitive powder containing an additive material, such as a flavor component, in a smoking article such as a cigarette. The temperature sensitive powder is subjected to heat which causes the temperature sensitive powder to release at least a portion of the additive material into mainstream smoke. The temperature sensitive powder encapsulates the additive materials and other portions of the smoking articles, such as sorbents or filter materials, in order to reduce additive material migration during storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.