Tobacco smoke filtering compositions

Details Tobacco smoke filtering compositions Tobacco smoke filtering compositions

1978-04-10

1981-05-12

Millin, V.

Tobacco

Smoke separator or treater

Plural diverse elements

131342, 55387, B01D 5314, B01D 5928, A24D 314, A24D 316

Patent

active

042665612

ABSTRACT:
The disclosure is of compositions useful for chemisorption of undesirable chemical compounds found in tobacco smoke. The compositions comprise a base of alumina (aluminum oxide) impregnated with various proportions of zinc acetate, acetic acid and polyethyleneimine. The compositions are usefully employed as chemical filter components and are particularly advantageous in that they have a capacity to remove large quantities of hydrogen cyanide and hydrogen sulfide from tobacco smoke while simultaneously removing acetaldehyde. Unexpectedly the smoking quality of cigarettes, to which the compositions may be associated, is not adversely affected. To the contrary, smoking quality of such cigarettes is improved.

REFERENCES:
patent: 2792841 (1957-05-01), Larson
patent: 3251365 (1966-05-01), Keith et al.
patent: 3417759 (1968-12-01), Touey et al.
patent: 3460543 (1969-08-01), Keith et al.
patent: 3550600 (1970-12-01), Horsewell et al.

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