Method and apparatus for the selective removal of specific components from smoke condensates
US6119699A · kind A · utility
Inventor
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/166
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A smoking article capable of delivering a regulated smoke composition to a smoker, includes: a) a combustible filler wrapped in a combustible sheath; and b) at least one affinity chromatographic filter unit designed to preferentially remove specific targeted components from the smoke disposed within the sheath adjacent the combustible filler. The filter unit includes a mass of silica or resin particles having chemically bonded to their surfaces functional groups which exhibit preferential affinity for the targeted components and which reversibly bind the targeted components to elute components having a lower affinity than a previously bound component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.