Method for preparing fuel element for smoking article
US8469035B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2008 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | May 26, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24F40/44
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention provides a method for making a fuel element for a smoking article comprising forming a combustible carbonaceous material into a fuel element adapted for use in a smoking article; incorporating a metal-containing catalyst precursor into the fuel element or onto the surface thereof to form a treated fuel element, the incorporating step occurring before, during, or after said forming step; and optionally heating or irradiating the treated fuel element at a temperature and for a time sufficient to convert the catalyst precursor to a catalytic metal compound. Examples of metal-containing catalyst precursors include iron nitrate, copper nitrate, cerium nitrate, cerium ammonium nitrate, manganese nitrate, magnesium nitrate, and zinc nitrate. Fuel elements treated according to the invention, and smoking articles including such fuel elements, are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.