Cigarette wrapper with nanoparticle spinel ferrite catalyst and methods of making same
US7934510B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2004 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Jan 8, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y30/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A wrapper for a smoking article includes nanoparticle spinel ferrite catalyst and a web including cellulosic fibers and an optional web-filler. The web-filler can be a modified web-filler which incorporates the spinel ferrite catalyst. The nanoparticle spinel ferrite catalyst can be a nanoparticle manganese-copper-iron oxide catalyst incorporated in the wrapper and/or a tobacco cut filler. Also provided is a smoking article including a cigarette tobacco rod having a wrapper including a web, a web-filler, and a nanoparticle spinel ferrite catalyst, the web-filler optionally supporting the nanoparticle catalyst. 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.