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US 6,615,842 B1Granted
Methods for removing nucleophilic toxins from tobacco smoke
AssigneeCerami Consulting Corp.
InventorsAnthony Cerami, Carla Cerami, Peter Ulrich
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AssigneeCerami Consulting Corp.
InventorsAnthony Cerami, Carla Cerami, Peter Ulrich
Estimating the term…
This invention provides methods, devices and agents for the removal of nucleophilic toxins present in tobacco and tobacco smoke. The filter element of a tobacco smoking device or an air filtration device used in conjunction with a tobacco smoking device may comprise chemical moieties reactive with nucleophilic compounds, or agents that trap nucleophilic compounds may be incorporated into the filter element of tobacco smoking device such as a cigarette, cigar, pipe, or in a separate filter through which tobacco smoke passes before entering the mouth. The agents may also be incorporated into air filters for removing tobacco combustion product toxins from room air. The agents may also be incorporated into smoking or smokeless tobacco to remove toxins.
A method for reducing the level of nucleophilic toxins present in mainstream tobacco smoke by passing said mainstream tobacco smoke through a filter element capable of removing nucleophilic toxins present in said smoke, said filter element comprising an agent selected from the group consisting of adenosine dialdehyde, inosine dialdehyde, o-phthaldialdehyde, ethylenedioxybis(3-benzaldehyde), and combinations thereof.
A method for reducing the level of nucleophilic toxins present in mainstream tobacco smoke by passing said mainstream tobacco smoke through a filter element capable of removing nucleophilic toxins present in said air, said filter element comprises an activated ketone toxin-removing agent selected from the group consisting of α-dicarbonyl compounds, β-dicarbonyl compounds, γ-dicarbonyl compounds, and α,β-unsaturated ketones.
A method for reducing the level of nucleophilic toxins present in mainstream tobacco smoke by passing said mainstream tobacco smoke through a filter element capable of removing nucleophilic toxins present in said air, said filter element comprises active ester toxin-removing agent selected from the group consisting of bicyclo(2,2,2)oct-7-ene-2,3,5,6-hydroxysuccinimide ester, N-α-t-butoxycarbonyl-L-alanine-N-hydroxysuccinimide ester, N-α-t-butoxycarbonyl-L-glutamic-α-benzyl ester-γ-N-hydroxysuccinimide ester, ε-t-butoxycarbonyl-aminocaproic acid N-hydroxysuccinimide ester, N-hydroxysuccinimidyl-activated agarose, 6-aminohexyl N-hydroxysuccinimide ester-activated agarose, and combinations thereof.
A method for reducing the level of nucleophilic toxins present in mainstream tobacco smoke by passing said mainstream tobacco smoke through a filter element capable of removing nucleophilic toxins present in said smoke, said filter element comprising a polymer derivatized with aldehydic groups, wherein said polymer is selected from the group consisting of periodate-oxidized cellulose, periodate-oxidized starch, periodate-oxidized agarose, periodate-oxidized partially acetylated cellulose, and combinations thereof.
A method for reducing the level of nucleophilic toxins present in mainstream tobacco smoke by passing said mainstream tobacco smoke through a filter element capable of removing nucleophilic toxins present in said smoke, said filter element comprising a polymer derivatized with aldehydic groups, wherein said polymer derivatized with aldehydic groups is selected from the group consisting of dialdehyde starch, dialdehyde cellulose, and the combination thereof.
A method for reducing the level of nucleophilic toxins present in mainstream tobacco smoke by passing said mainstream tobacco smoke through a filter element capable of removing nucleophilic toxins present in said smoke, wherein said toxin-removing filter element is a dialdehyde starch.
Dependencies are inferred from the claim text.