Filter for removing nitrogen oxides from tobacco smoke

Details Filter for removing nitrogen oxides from tobacco smoke Filter for removing nitrogen oxides from tobacco smoke

1994-12-20

1996-11-19

Bahr, Jennifer

Tobacco

Smoke separator or treater

Including a cellulose ester or ether

131332, 131342, A24D 306, A24D 310

Patent

active

055753027

ABSTRACT:
A filter for removing nitrogen oxides (NO.sub.x) from tobacco smoke comprises A) a poly(arylene thioether), B) if appropriate a conventional filter material and C) if appropriate at least one surface-active solid. By means of use of this filter, in particular, nitrogen dioxide is virtually completely removed from the smoke.

REFERENCES:
patent: 3434479 (1969-03-01), Till et al.
patent: 4661299 (1987-04-01), Thorsrud
patent: 4749598 (1988-06-01), Miles
patent: 4763674 (1988-08-01), Lelah
patent: 4767799 (1988-08-01), Thorsrud
patent: 4790965 (1988-12-01), Thorsrud
patent: 4810590 (1989-03-01), Rich
patent: 4968726 (1990-11-01), Thorsrud
patent: 5083579 (1992-01-01), Vanin et al.
Rompp Chemie Lexikon, 9, Aufl,., Bd. 6 (1992) 4435.
Rompp Chemie Lexikon, 9, Aufl., Bd. 5 4316.

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