Tobacco smoke filter material and process for production thereof

Details Tobacco smoke filter material and process for production thereof Tobacco smoke filter material and process for production thereof

1990-02-28

1992-08-25

Millin, V.

Tobacco

Smoke separator or treater

131344, 131345, 536 69, 536 70, 536 71, A24D 302

Patent

active

051410060

ABSTRACT:
Disclosed is a novel process of preparing tobacco smoke filter material, wherein an acidic compound such as citric acid is dissolved in a cellulose acetate spinning solution (dope) prior to spinning the filaments of the filter material.

REFERENCES:
patent: 2904050 (1955-01-01), Kiefer et al.
patent: 3077633 (1963-02-01), Raynolds et al.
patent: 3320961 (1967-05-01), Hughes et al.
patent: 3340879 (1967-09-01), Horsewell et al.
patent: 3368566 (1968-02-01), Auedikian
patent: 3424172 (1969-01-01), Neurath et al.
patent: 3424173 (1969-01-01), Touey et al.
patent: 3428056 (1969-02-01), Sublett et al.
patent: 5009239 (1991-04-01), Cohen et al.
Patent Abstracts of Japan, vol. 11, No. 167, 28 May 1987, and JP-A-61 published 26 Dec. 1986 (Daicel Chemical Industries, Ltd.).

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