Oxidant/catalyst nanoparticles to reduce tobacco smoke...

Details Oxidant/catalyst nanoparticles to reduce tobacco smoke... Oxidant/catalyst nanoparticles to reduce tobacco smoke...

2006-03-28

2006-03-28

Walls, Dionne A. (Department: 1731)

Tobacco

Smoke separator or treater

By chemical reaction, e.g., ion-exchange, chelating,...

C131S364000

Reexamination Certificate

active

07017585

ABSTRACT:
Cut filler compositions, cigarettes, methods for making cigarettes and methods for smoking cigarettes are provided, which involve the use of nanoparticle additives capable of reducing at least one constituent from mainstream and/or sidestream tobacco smoke, the at least one constituent being selected from the group consisting of aldehyde, carbon monoxide, 1,3-butadiene, isoprene, acrolein, acrylonitrile, hydrogen cyanide, o-toluidine, 2-naphtylamine, nitrogen oxide, benzene, N-nitrosonornicotine, phenol, catechol, benz(a)anthracene, benzo(a)pyrene, and mixtures thereof. Preferably, the nanoparticle additives are effective as an oxidant for the conversion of carbon monoxide to carbon dioxide and/or as a catalyst for the conversion of carbon monoxide to carbon dioxide and/or catalyst for conversion of aldehydes such as acetaldehyde and acrolein, hydrocarbons such as isoprene and/or phenolic compounds such as catechol to carbon dioxide and water vapor. Methods for making a cigarette are provided, which involve (i) adding a nanoparticle additive to a cut filler; (ii) providing the cut filler comprising the additive to a cigarette making machine to form a tobacco rod; and (iii) placing a paper wrapper around the tobacco rod to form the cigarette. Further, methods of smoking the cigarette described above are described, which involve lighting the cigarette to form smoke and drawing the smoke through the cigarette, wherein during the smoking of the cigarette, the additive is capable of reducing at least one constituent from mainstream and/or sidestream tobacco smoke.

REFERENCES:
patent: 3472237 (1969-10-01), Stephens
patent: 3621851 (1971-11-01), Heskett et al.
patent: 3720214 (1973-03-01), Norman et al.
patent: 3796793 (1974-03-01), Metzer
patent: 3807416 (1974-04-01), Hedge et al.
patent: 3931824 (1976-01-01), Miano et al.
patent: 4109663 (1978-08-01), Maeda et al.
patent: 4119104 (1978-10-01), Roth
patent: 4193412 (1980-03-01), Heim et al.
patent: 4195645 (1980-04-01), Bradley, Jr. et al.
patent: 4197861 (1980-04-01), Keith
patent: 4317460 (1982-03-01), Dale et al.
patent: 4397321 (1983-08-01), Stuetz
patent: 4574821 (1986-03-01), Fischer et al.
patent: 4956330 (1990-09-01), Elliott et al.
patent: 5050621 (1991-09-01), Creighton et al.
patent: 5101839 (1992-04-01), Jakob et al.
patent: 5105836 (1992-04-01), Gentry et al.
patent: 5129408 (1992-07-01), Jakob et al.
patent: 5258330 (1993-11-01), Khandros et al.
patent: 5258340 (1993-11-01), Augustine et al.
patent: 5322075 (1994-06-01), Deevi et al.
patent: 5443560 (1995-08-01), Deevi et al.
patent: 5446003 (1995-08-01), Augustine et al.
patent: 5591368 (1997-01-01), Fleischhauer et al.
patent: 5598868 (1997-02-01), Jakob et al.
patent: 5934289 (1999-08-01), Watkins et al.
patent: 6053176 (2000-04-01), Adams et al.
patent: 6095152 (2000-08-01), Beven et al.
patent: 609217 (1979-02-01), None
patent: 0031700 (1981-07-01), None
patent: 685822 (1953-01-01), None
patent: 863287 (1961-03-01), None
patent: 973854 (1964-10-01), None
patent: 1104993 (1968-03-01), None
patent: 1315374 (1973-05-01), None
patent: 87/06104 (1987-10-01), None
patent: 00/40104 (2000-07-01), None
James E. Brady et al, “Fundamentals of Chemistry, 2ndEd.”, John Wiley & Sons, 1961, pp. 409-411.
Written Opinion for PCT/US02/27407 dated Sep. 3, 2003.
Notification of Transmittal of the International Search Report dated Oct. 29, 2002 for PCT/US02/27407.
Notification of Transmittal of International Preliminary Examination Report for PCT/US03/34879 dated Feb. 17, 2005.
Written Opinion for PCT/US03/34879 dated Aug. 9, 2004.
Notification of Transmittal of International Preliminary Examination Report for PCT/US02/27407 dated Aug. 2, 2004.

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