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1. (WO2001080973) HIGH EFFICIENCY CIGARETTE FILTERS HAVING SHAPED MICRO CAVITY FIBERS IMPREGNATED WITH ADSORBENT OR ABSORBENT MATERIALS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2001/080973    International Application No.:    PCT/US2001/012939
Publication Date: 01.11.2001 International Filing Date: 20.04.2001
Chapter 2 Demand Filed:    20.09.2001    
IPC:
B01D 39/02 (2006.01)
Applicants: PHILIP MORRIS PRODUCTS, INC. [US/US]; 3601 Commerce Road, Richmond, VA 23234 (US) (For All Designated States Except US).
XUE, Lixin, Luke [CN/US]; (US) (For US Only).
KOLLER, Kent, Brian [US/US]; (US) (For US Only).
GAO, Qiong [CN/US]; (US) (For US Only)
Inventors: XUE, Lixin, Luke; (US).
KOLLER, Kent, Brian; (US).
GAO, Qiong; (US)
Agent: PEZZNER, Ashley, I.; Connolly Bove Lodge & Hutz LLP, 1220 Market Street, P.O. Box 2207, Wilmington, DE 19899 (US)
Priority Data:
60/198,628 20.04.2000 US
Title (EN) HIGH EFFICIENCY CIGARETTE FILTERS HAVING SHAPED MICRO CAVITY FIBERS IMPREGNATED WITH ADSORBENT OR ABSORBENT MATERIALS
(FR) FILTRES DE CIGARETTE HAUTEMENT EFFICACES CONTENANT DES FIBRES A MICRO CAVITE EN FORME IMPREGNEES DE MATERIAUX ADSORBANTS OU ABSORBANTS
Abstract: front page image
(EN)This invention is a highly efficient filter containing fibers (22) that contain small particle size adsorbents/absorbents (23) such as carbon and/or silica to selectively reduce targeted components in mainstream cigarette smoke. The invention relates to a novel class of highly efficient cigarette smoke filters made from much smaller fine particles (preferably 1-50 micrometers in diameter) impregnated in shaped fibers (22) that possess open or semi-opened micro-cavity. The invention further relates to a cigarette (10) having a plug/space/plug (12, 14, 16) or plug/space (12, 14) configuration and having the impregnated filters resided in the space in bonded non-woven or freely unbounded manner to allow controlled TPM delivery.
(FR)La présente invention concerne un filtre hautement efficace contenant des fibres (22), lesquelles contiennent des matériaux adsorbants/absorbant (23) de taille particulaire tel que du charbon et/ou du silice de façon à sélectivement réduire des composants ciblés dans l'émission de fumée de cigarette. Cette invention a trait à une nouvelle classe de filtres de fumée de cigarette hautement efficaces fabriqués à partir de fines particules plus petites (de 1à 50 micromètres de diamètre, de préférence) imprégnées dans des fibres en forme (22) qui possèdent une micro cavité ouverte ou semi-ouverte. Cette invention concerne aussi une cigarette (10) présentant un agencement tampon/espace/tampon (12, 14, 16) ou tampon/espace (12, 14) et dont les filtres imprégnés sont situés dans l'espace en liaison non tissée ou librement non liés de façon à commander l'apport de matières particulaires totales.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)