Tobacco reconstitution process
US4962774A · kind A · utility
53Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1988 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Nov 16, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24B15/24
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Reconstituted Tobacco has ammonia incorporated therein. Tobacco is extracted with water to yield an insoluble portion and an aqueous portion containing water soluble tobacco components. The aqueous portion is contacted with ammonia to yield an ammoniated extract. The extract is applied to the insoluble portion which has been formed into a sheet-like shape. The resulting tobacco composition is dried to yield a reconstituted tobacco material treated with ammonia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.