A - Human Necessities – 24 – B
Patent
A - Human Necessities
24
B
131/86
A24B 3/18 (2006.01) A24B 15/28 (2006.01)
Patent
CA 1115163
NOVEL TOBACCO PRODUCT AND IMPROVED PROCESS FOR THE EXPANSION OF TOBACCO Abstract of the Disclosure A novel tobacco product comprising tobacco containing gaseous carbon dioxide in an amount of at least 1 part of gaseous carbon dioxide per 100 parts of tobacco. The product when heated rapidly is converted to expanded tobacco. An im- proved process for the expansion of tobacco is also provided, which employs carbon dioxide as the expansion agent in a sequence of steps comprising: (1) contacting tobacco with carbon dioxide gas at a pressure of at least 250 psig for a time sufficient to impregnate the tobacco with the carbon dioxide gas to form a gaseous carbon dioxide-tobacco system (2) releasing the pressure and (3) thereafter subjecting the carbon dioxide-treated tobacco to rapid heating conditions to remove the carbon dioxide and thereby expand the tobacco, The improvement in the above-described process comprising cooling the gaseous carbon dioxide and tobacco system in step (1) to a temperature close to the saturation temperature of carbon dioxide but not lower than -23°C.
323817
Aument Patrick E.
Burde Roger Z. de La
Utsch Francis V.
Gowling Lafleur Henderson Llp
Morris (philip) Incorporated
LandOfFree
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