A - Human Necessities – 24 – B
Patent
A - Human Necessities
24
B
31/1.1
A24B 15/16 (2006.01) A24F 47/00 (2006.01)
Patent
CA 1294122
METHOD FOR MODIFYING A SUBSTRATE MATERIAL FOR USE WITH SMOKING ARTICLES AND PRODUCT PRODUCED THEREBY ABSTRACT OF THE DISCLOSURE The present invention relates to a substrate material having a decreased retentive capacity for use as a carrier for aerosol forming materials in smoking articles which smoking articles are capable of producing substantial quantities of aerosol, both initially and over the useful life of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products or sidestream aerosol. Thus, the substrate material of the present invention when used with preferred smoking articles is able to provide the user with the sensations and benefits of cigarette smoking without burning tobacco. In addition, the article may be made virtually ashless to that the user does not have to remove any ash during use. Preferred smoking articles which employ the substrate material of the present invention have a short combustible carbonaceous fuel element, alumina of carbon substrate modified in accordance with the present invention bearing an aerosol forming substance, an efficient insulating means, and a relatively long mouth end piece. The fuel element is provided with a plurality of longitudinally extending passageways which act to control the heat transferred from the burning fuel element to the aerosol generating means, thus preventing the thermal degradation of the aerosol former.
543041
Banerjee Chandra K.
Kay Deborah C.
Lehman Richard L.
Banerjee Chandra K.
Bereskin & Parr
Kay Deborah C.
Lehman Richard L.
Reynolds (r.j.) Tobacco Company
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