Preparation of mixed metal oxide catalysts from nanoscale particles
US7640936B2 · kind B2 · utility
6Cited by
54References
7Claims
0Family size
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Key dates
| Filing date | Oct 25, 2004 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | May 17, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Mixed metal oxide catalysts are prepared by combining first nanoscale particles and second nanoscale particles to form a mixture of nanoscale particles and then the mixture is heated to form a mixed metal oxide catalyst. The mixed metal oxide catalysts, which are capable of reducing the concentration of carbon monoxide in the mainstream smoke of a cigarette during smoking, are incorporated into a smoking article component such as tobacco cut filler, cigarette paper and/or cigarette filter material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.