Cigarette wrapper with printed catalyst
US9119421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2004 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Mar 11, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/24
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A wrapper for a smoking article includes a web; and a patterned deposit on at least a portion of one surface of the wrapper, wherein the patterned deposit comprises catalyst particles. The patterned deposit can include a nanoparticle catalyst that is capable of catalyzing the conversion of a constituent gas component in the mainstream and/or sidestream smoke of the smoking article. The constituent gas component can be carbon monoxide and/or nitric oxide and the catalyst particles can be iron oxide. Also provided is a smoking article comprising a tobacco rod having a wrapper formed around the tobacco rod, the wrapper including a patterned deposit on at least a portion of one surface of the wrapper. A method of making the wrapper and a method of making a smoking article utilizing the wrapper are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.