Cigarette and filter

Details Cigarette and filter Cigarette and filter

1977-12-19

1979-04-17

Michell, Robert W.

Tobacco

Tobacco users' appliance

Supports

131 10R, 55103, 55523, 55527, A24B 1500

Patent

active

041495497

ABSTRACT:
A filter for tobacco smoke employs synthetic, inorganic, water-insoluble, anhydrous fibers having a positive zeta potential at the pH of tobacco smoke.
To increase the effectiveness of the filter, the tobacco associated with the filter has mixed therewith and deposited thereon particles of a water-insoluble, hydrophobic, moisture-laden, negative charge-imparting substance.

REFERENCES:
patent: 3087500 (1963-04-01), Jacobson
patent: 3127901 (1964-04-01), Whitfield et al.
patent: 3251365 (1966-05-01), Keith et al.

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