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US 4,727,889 AGranted
Tobacco processing
AssigneeR. J. Reynolds Tobacco Company
InventorsBenjamin F. Niven, Jr., Charles D. Mays
Life of this patent
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Abstract
Flue-cured tobacco can be treated with burley tobacco flavor components and subjected to volume expansion conditions. Flavor components are supercritically extracted from burley tobacco and directly applied to the flue-cured tobacco while the extraction fluid is in a supercritical or subcritical state.
Claims9
A process for providing a flavored smoking material, the process comprising:
- (a) extracting tobacco components from tobacco material with a fluid under supercritical conditions thereby providing extracted tobacco components within the fluid;
- and then directly
- (b) contacting the extracted tobacco components within the fluid, while the fluid is in a supercritical or subcritical state, with a smokable material under conditions sufficient to provide smokable material in intimate contact with the extracted tobacco components.
A process for providing a flavored smoking material of increased filling capacity, the process comprising:
- (a) extracting tobacco components from tobacco material with a fluid under supercritical conditions thereby providing extracted tobacco components within the fluid;
- and then directly
- (b) contacting the extracted tobacco components, while the fluid is in a supercritical or subcritical state, with a smokable material under conditions sufficient to provide smokable material in intimate contact with the extracted tobacco components;
- and then
- (c) subjecting the smokable material to a supercritical or subcritical expansion process.
2 more elements
A process for providing a flavored smoking material of increased filling capacity, the process comprising:
- (a) subjecting smokable material to a supercritical or subcritical expansion process thereby providing an expanded smokable material;
- and then
- (b) extracting tobacco components from tobacco material with a fluid under supercritical conditions thereby providing extracted tobacco components within the fluid;
- and then directly
- (c) contacting the extracted tobacco components, while the fluid is in a supercritical or subcritical state, with the expanded smokable material under conditions sufficient to provide smokable material in intimate contact with the extracted tobacco components.
2 more elements
Dependencies are inferred from the claim text.