Tobacco catalyst and methods for reducing the amount of undesirable small molecules in tobacco smoke
US7856992B2 · kind B2 · utility
14Cited by
89References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2005 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Feb 27, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Tobacco products and articles are disclosed that include a nanoparticle catalyst. The nanoparticles are capable of degrading undesirable small molecules in tobacco smoke. The nanoparticle catalyst includes a dispersing agent that inhibits the deactivation of the nanoparticle catalyst. One embodiment disclosed has a dispersing agent that anchors the nanoparticles to a support material thereby preventing agglomeration of the nanoparticles. The dispersed nanoparticles exhibit higher activity and reduce the required loading in the tobacco material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.