Tobacco – Tobacco treatment – With fluid or fluent material
Reexamination Certificate
2007-05-18
2010-10-26
Lopez, Carlos (Department: 1791)
Tobacco
Tobacco treatment
With fluid or fluent material
C131S334000
Reexamination Certificate
active
07819123
ABSTRACT:
An apparatus and method for the process of applying palladium salts to tobacco cut filler and other smokable products so that polycyclic aromatic hydrocarbons (PAHs) can be reduced in both mainstream (MS) and sidestream (SS) cigarette smoke. The reduction in PAHs is observed in the total particulate matter (TPM) of the mainstream (MS) and sidestream (SS) smoke. Additionally, substantial reductions in heavy metals and Ames biological activity can be achieved when the palladium salt solution is applied and processed in accordance with the present invention. The present invention provides these improvements by using a preferred ratio of palladium (Pd) salt to Chloride (Cl) that is specifically designed to allow for high palladium solubility. Further, the present invention provides an apparatus and method for applying the palladium salt solution while minimizing the number of processing steps required.
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Gross et al, Thermal Decomposition of Palladium Acetate, Journal of Thermal Analysis, vol. 31, 1986, pp. 1231-1241.
Baggett, Jr. James D.
Zimmermann Stephen G.
Connolly Bove & Lodge & Hutz LLP
Lopez Carlos
Philip Morris USA Inc.
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