EP0859558A1 - Cigarette filtre - Google Patents

Cigarette filtre

Info

Publication number
EP0859558A1
EP0859558A1 EP96937308A EP96937308A EP0859558A1 EP 0859558 A1 EP0859558 A1 EP 0859558A1 EP 96937308 A EP96937308 A EP 96937308A EP 96937308 A EP96937308 A EP 96937308A EP 0859558 A1 EP0859558 A1 EP 0859558A1
Authority
EP
European Patent Office
Prior art keywords
filter
additive
cigarette according
filter cigarette
acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96937308A
Other languages
German (de)
English (en)
Other versions
EP0859558B1 (fr
Inventor
Eberhard Teufel
Wolfgang Sexauer
Rolf Willmund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cerdia Produktions GmbH
Original Assignee
Rhodia Acetow GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhodia Acetow GmbH filed Critical Rhodia Acetow GmbH
Publication of EP0859558A1 publication Critical patent/EP0859558A1/fr
Application granted granted Critical
Publication of EP0859558B1 publication Critical patent/EP0859558B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives

Definitions

  • the invention relates to a filter cigarette, the filter of which contains an additive with an anti-mutagenic effect on cigarette smoke.
  • Antimutagenic active ingredients are known from food technology. There, many of the mutagens found in foodstuffs and their separation mechanisms are also examined and illustrated (see, inter alia, P. Grasso, CO 'Hare; Chemical Carcinogens ACS Monograph (Ch. E. Searle ed.), American Chemical Society, Washington (1976 ), Pp. 700 - 728). Some pyrolysis products of proteins are regarded as the most effective mutagens in food today, e.g. the connections Tr-Pl, Tr-P2, Glu-Pl, Glu-P2 or also IQ (see, among others, K. Wakabayashi,
  • Such compounds can obviously be bound in living organisms with high efficiency in the aqueous phase to constituents of mostly plant-based foods and thus effectively removed from the metabolism as water-insoluble complex compounds.
  • antimutagenic substances include chlorophylline and hemin and related derivatives (see, inter alia, R. Dashwood, D. Gno; Environmental and Molecular Mutagenesis, 22, (1993), pp. 166-171, S. Arimoto, H. Hayatsu; Mutation Research, 213, (1989), pp. 217-226, and Kato et al., Mutation Research, 246, (1991), pp. 169-178).
  • the mutagenic effect of cigarette smoke determined by the Ames test, is generally known in the art.
  • DE-PS 1 300 854 describes the use of acidic carboxylic acid alkyl esters as crosslinking or strengthening agents.
  • a number of other publications on the use of organic acids as a filter additive are based on the disclosure of this patent in order to specifically increase nicotine retention.
  • the special thing about this idea is that the additive also acts as a plasticizer and thus an industrial production of
  • DE-PS 1 300 854 does not disclose any indication of how mutagenic substances could be removed from cigarette smoke.
  • the effectiveness of the filter additives described in DE-PS 1 300 854 in a filter tow was demonstrated on one with a filament titer of more than 3 dtex.
  • DE-PS 1 300 854 nor DE-OS 43 20 384 make any statements about a possible reduction in the biological activity in the Ames test of cigarette smoke.
  • DE-OS 25 27 234, JP 50-125100 and JP 51-32799 describe the use of cyclodextrin, in particular ⁇ -cyclodextrin, for the filtration of in particular nicotine.
  • This additive can be applied directly to cellulose acetate filters or as granules in chamber filters.
  • the amounts described are extremely high, 30 to 80 mg per filter according to the two Japanese applications and "mainly or exclusively" according to the specifications of DE-OS 25 27 234. A possible reduction in the biological activity of the smoke is not reported.
  • US Pat. No. 5,409,021 describes a cigarette filter as a double or triple chamber filter, in which the chamber contains lignin as filler material.
  • the amounts of effective lignin mentioned in the examples are between 22 and 66 mg.
  • the known filter is effective against nicotine, benzpyrene, CO, metals and tobacco-specific nitrosamines.
  • the reduction in biological activity according to the Ames test (TA 98) is not addressed.
  • the amounts of additive used are around 20 to 50% of the filter fiber weight.
  • EP-A-0 493 026 describes the impregnation of a cellulose acetate filter with an N, N'-bis (3-triethoxysilyl-propyl) thiocarbamide monomer in concentrations of 6 to 15%. The measure results in an increased filter efficiency compared to polycyclic
  • Aromatics, metals and tobacco-specific nitrosamines No statements are made about the retention of the filter used. Also, no effects on the biological activity of the smoke are dealt with in the Ames test (TA 98).
  • Russian patent 2 010 546 describes a combination of the teachings according to EP-A-0 493 026 and US patent 5 409 021.
  • JP-5-23159 describes a cigarette filter with ellagic acid as an additive. Here, their antimutagenic effect is also addressed.
  • the recommended amount of additive is 1 to 10 mg per filter. Its antimutagenic effect according to the Ames test (TA 98) is not proven.
  • EP-A-0 246 330 describes the reduction of the mutagenicity in the Ames test (TA 98) by activated cellulose powder, cellulose ion exchangers or by hemin-doped celluloses in powder form.
  • the examples only describe chamber filters.
  • the amount of powder that is required to achieve a reduction in the specific mutagenicity of more than 10% is well above 15%, based on the filter fiber weight used.
  • the additive should also be able to be sprinkled between the acetate fibers of a monofilter. None more is said about the effectiveness of this measure. Tests have shown that only with an amount of additive of significantly more than 10 mg per filter does an effect in the
  • Ames test (TA 98) of more than 10% can be achieved.
  • the invention has for its object to provide a filter cigarette of the type described, in which the tobacco smoke is filtered such that, measured according to the Ames test with the TA 98 strain, mutagenic substances with a Selectivity of at least 10%, especially more than 20%, better than other smoke ingredients.
  • the invention is also intended to propose a particularly suitable method of how the additive is applied to the filter.
  • this object is achieved by a filter cigarette, the filter of which contains an additive with an antimutagenic effect on cigarette smoke, the
  • Filter a) contains fibrous filter material, b) the additive in an amount of less than 15% by mass, based on the Fiber weight of the filter, and c) has a nicotine retention RN (in%) when smoking a similar, but not containing additive, unventilated filter cigarette (determined according to CORESTA, recommended method No.9), which satisfies the following formula: R N > 100 * (1-D) where:
  • the filter design is of crucial importance. It has surprisingly been found that a minimum retention is required for the effectiveness of the measures according to the invention, which is rarely achieved with filters in cigarettes commercially available today.
  • the nicotine retention is used as a reference variable as retention.
  • the filtration performance of a cigarette filter is, in addition to the material properties of the filter material, the dimensions of the filter, such as diameter and filter length, and the pressure drop in the filter (the term is used in the cigarette industry
  • the required filtration performance of a filter and here in particular the nicotine retention can be expressed by the following empirically determined equation: R N > 100 * (1-D), (I) where nicotine retention (in percent) and D represents the permeability of the filter to nicotine.
  • the permeability of a filter with regard to nicotine results from the following equation:
  • variable A describes the dependence of the filter performance on the filter length.
  • the variable A is calculated by subtracting the actual filter length I from the length of a king-size filter I 0 .
  • variable C describes the dependence of the filter performance on diameter and draw resistance:
  • the CORESTA Monitor Cigarette No. is used for the smoke to determine the minimum retention. 2 (see Coresta Approved Monitor No. 2 (CM2) from borgwaldt technik D - 22525 Hamburg). However, since this product is only defined for one diameter, tobacco strands made of identical tobacco (flue cured), strand paper, casing and tobacco density are used for other cigarette diameters. Since nicotine retention is independent of the strand dimensions and the nicotine retention of cigarette filters when using flue cured tobacco is identical to condensate retention (G. Lipp: Contributions to Tobacco Research 3, 109 (1965)), the procedure for determining retention is not critical .
  • fibrous filter material used in the filter cigarettes according to the invention is not critical.
  • these materials can be fibers made of polypropylene, viscose, polyester and, in particular, cellulosic materials.
  • Cellulose acetate is particularly preferred.
  • the fibrous filter materials can be used in the form of a filter tow or a fleece. It is particularly advantageous if a filter tow consists of a cellulose acetate.
  • a nonwoven it preferably consists of paper, but nonwovens made of highly fibrillated cellulosic fibers or so-called meltblown nonwovens and spunbonded nonwovens can also be used become.
  • this preferably contains staple fibers and / or filaments with a titer of less than 3 dtex, in particular from 1.0 to 2.7 dtex. In this case, a particularly good filter effect is achieved.
  • the desired filter effect is also increased by the fact that the filter is ventilated.
  • a filter for further explanation of a filter, reference is made to EP-B-0 368 065. From this it is known that in ventilated cigarettes the separation of volatile, in particular steam-volatile, substances increases with an increasing degree of ventilation. In the context of the invention, a degree of ventilation of at least 15%, in particular from 20 to 70%, is advantageous.
  • the additive is present in the filter cigarette in an amount of less than 15% by mass, based on the fiber weight of the filter.
  • This low proportion is surprising and is only possible due to the special filter construction which characterizes the filter cigarette according to the invention.
  • This value can be significantly reduced if the additives are selected advantageously. It is possible and advantageous in individual cases if the additive is present in an amount of less than 10% by mass, in particular less than 7% by mass, based on the fiber weight of the filter. The minimum value is about 0.5% by mass, based on the fiber weight of the filter.
  • Various groups of compounds which have a selective filtering action against the pyrolysis products of amino acids or proteins can be used here with particular advantage. This includes the connection Tr-Pl etc.
  • an additive in the form of an acid, an acidic salt of an acid and / or an acidic carboxylic acid ester b) an additive in the form of a macromolecular, hydrophilic organic compound with internal cavities for complex integration of low-molecular substances, c) an additive in the form of phenolic compounds and / or d) an additive in the form of a complexing agent for low molecular weight substances.
  • These groups of compounds include: Group a): acidic citric acid esters (these compounds also act as plasticizers for cellulose acetate at the same time and can therefore also be used via the Plasticizer dosage, preferably in a mixture with other plasticizers, can be applied without problems), suberic acid, acidic maleic acid, fumaric acid and / or adipic acid esters, in particular in the form of the alkyl acid esters, among which the methyl and ethyl esters are preferred, b) an additive in the form of poly - And / or oligosaccharides, in particular in the form of activated celluloses and starch derivatives and / or cyclodextrin, the ß-cyclodextrin being particularly preferred, and in the form of a native protein, in particular in the form of ß-lactoglobulin, c) an additive in the form of Ellagic acid and / or lignin, and d) an additive in the form of a metal complex of porphy
  • the filter cigarettes according to the invention can be produced using conventional methods.
  • the additive to the filter made from a fibrous filter material, in particular in the form of cellulose acetate, mixed with a plasticizer, in particular in the form of glycerol triacetate, in a conventional one
  • Filtration concept allows the required effects to be achieved with a minimal amount of additive material.
  • optimization is possible when additives are out the selected defined substance groups can be selected in order to improve the filter effect.
  • This advantage is borne by the knowledge that a special target group of mutagenic substances has to be filtered selectively.
  • the effects demonstrated in the Ames test can be fully verified in cell cultures of higher organisms, such as the hamster cell test of cell culture V79. This impressively underlines the relevance of the present invention with regard to the question of smoking and health.
  • An advantage of the invention, which should not be underestimated, is that a particularly suitable method for the industrial manufacture of the filter is specified which can be implemented without substantial modification of the existing technologies.
  • SK and HK refer to the crimp index which are used exclusively by the Filtertow department of RHONE-POULENC.
  • the filters were manufactured on a KDF2 filter rod machine with an AF 2 strand part from Körber AG (Hauni-Werke), Hamburg,
  • the filter rod dimensions were 7.8 x 120 mm.
  • a paper from Julius Glatz, Toiletfabriken, Neidenfels, Federal Republic of Germany with the designation F 796-28 was used as filter wrapping paper.
  • the additive was applied in a mixture with triacetin by means of the plasticizer dosage. Diethyl citrate (CDE) (Boehringer Mannheim GmbH, Chemische Fabrik, Mannheim, Federal Republic of Germany, Art. 663502) and lignin (lignin organosolv from Aldrich-Chemie, Steinheim, Federal Republic of Germany, Art. 37,101-7).
  • CDE Diethyl citrate
  • lignin lignin organosolv from Aldrich-Chemie, Steinheim, Federal Republic of Germany, Art. 37,101-7
  • the plasticizer was determined by differential weighing of filter rods with and without plasticizer.
  • the additive layer was calculated on the basis of the plasticizer layer and the concentration of the plasticizer in the triacetin.
  • Table I contains
  • the filter rods were cut to a length of 20 mm, glued to the tobacco rod of a CORESTA monitor cigarette and according to CORESTA recommended method No. 22 and 23 smoked.
  • the nicotine determination and the determination of the nicotine retention was carried out according to the methods CORESTA recommended method No. 7 and 9.
  • the condensates were determined using the Arnes test (Maron, Dorothy M.
  • the extraction of the smoked Cambridge filter and the dilution is carried out as follows: The Cambridge filter is extracted in 50 ml ethanol pA for 60 min with shaking in an Erlenmeyer flask. An aliquot of the solution is removed and its absorbance is determined by UV spectroscopy at a wavelength of
  • the example shows that an increase in the amount of additive also leads to an increase in the antimutagenic effect (cf. in particular sample B1, 5-2), but that the amount of additive used in this case compared to the known filters with additives, is very low.
  • the values of the measured nicotine retention for the samples labeled B and C are for illustrative purposes only. In particular, for the samples denoted by B it turns out that, in accordance with the teaching of DE-PS 1 300 854, the citric acid diethyl ester significantly increases the nicotine retention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Fats And Perfumes (AREA)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)

Abstract

L'invention concerne une cigarette filtre dont le filtre a) contient un matériau de filtrage fibreux et b) un additif à effet antimutagène sur la fumée de cigarette dans une proportion inférieure à 15 % de la masse par rapport au poids en fibres du filtre et c) présente, lors de la consommation d'une cigarette similaire mais contenant aucun additif et non ventilée, une rétention de nicotine RN (en %) (déterminée conformément à CORESTA, procédé n DEG 9 recommandé) qui correspond à la formule suivante: RN >/= 100 * (1-D), sachant que D = exp (A * B + C) où A = 21 mm - longueur du filtre (mm) pour des longueurs de filtre </= 25 mm ou bien A = -4 mm pour des longueurs de filtre > 25 mm, B = 9,3 * 10<-3> (1/mm) et C = -(d<4> * DELTA p * K + L), où d = diamètre du filtre (mm), DELTA p = résistance à la traction du filtre (mmWS), K = 1,0228 * 10<-6> (1/(mm<4> * mmWs)) et L = 0,2334. Ce filtre permet de filtrer les substances à effet mutagène, mesurées selon le test Ames avec la souche TA 98, avec une sélectivité au moins 10 % supérieure par rapport aux autres constituants de la fumée. L'invention concerne également un procédé adéquat pour la fabrication de telles cigarettes filtres.
EP96937308A 1995-11-09 1996-10-31 Cigarette filtre Expired - Lifetime EP0859558B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19541873A DE19541873A1 (de) 1995-11-09 1995-11-09 Filterzigarette
DE19541873 1995-11-09
PCT/EP1996/004733 WO1997016986A1 (fr) 1995-11-09 1996-10-31 Cigarette filtre

Publications (2)

Publication Number Publication Date
EP0859558A1 true EP0859558A1 (fr) 1998-08-26
EP0859558B1 EP0859558B1 (fr) 2000-10-11

Family

ID=7777081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96937308A Expired - Lifetime EP0859558B1 (fr) 1995-11-09 1996-10-31 Cigarette filtre

Country Status (33)

Country Link
US (1) US6145511A (fr)
EP (1) EP0859558B1 (fr)
JP (1) JP3604397B2 (fr)
KR (1) KR100265506B1 (fr)
CN (1) CN1105518C (fr)
AT (1) ATE196829T1 (fr)
BG (1) BG63814B1 (fr)
BR (1) BR9611382A (fr)
CA (1) CA2234795C (fr)
CZ (1) CZ294476B6 (fr)
DE (2) DE19541873A1 (fr)
DK (1) DK0859558T3 (fr)
EE (1) EE03660B1 (fr)
ES (1) ES2154420T3 (fr)
GE (1) GEP20002134B (fr)
GR (1) GR3035218T3 (fr)
HK (1) HK1016434A1 (fr)
HU (1) HUP9903488A3 (fr)
IL (1) IL124335A (fr)
IS (1) IS1800B (fr)
LT (1) LT4447B (fr)
LV (1) LV12123B (fr)
NO (1) NO306144B1 (fr)
NZ (1) NZ321598A (fr)
PL (1) PL184287B1 (fr)
PT (1) PT859558E (fr)
RO (1) RO118922B1 (fr)
RU (1) RU2140758C1 (fr)
SI (1) SI9620124A (fr)
SK (1) SK282028B6 (fr)
TR (1) TR199800832T2 (fr)
UA (1) UA42853C2 (fr)
WO (1) WO1997016986A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006037640A2 (fr) * 2004-10-06 2006-04-13 Rhodia Acetow Gmbh Filtre ou element filtrant de fumee de tabac ayant une teneur en additifs

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO983015A (no) * 1998-06-29 1999-11-15 Mohammad Azam Mansoor Sigarettfilter som inneholder kjemiske forbindelser
DE19951062C2 (de) * 1999-10-22 2002-04-04 Rhodia Acetow Gmbh Hochleistungs-Zigarettenfilter
DK1317192T3 (da) * 2000-09-12 2007-02-26 Filligent Ltd Filter til tobaksrög
US6789548B2 (en) 2000-11-10 2004-09-14 Vector Tobacco Ltd. Method of making a smoking composition
US6789546B2 (en) * 2001-06-26 2004-09-14 Technion Research & Development Foundation Ltd. Filters for preventing or reducing tobacco smoke-associated injury in the aerodigestive tract of a subject
BRPI0407551B1 (pt) * 2003-02-18 2012-09-04 filtro de fumaça de tabaco, dispositivo fumável, método de filtração de fumaça de tabaco e método de fabricação do referido dispositivo
WO2005086915A2 (fr) 2004-03-09 2005-09-22 Arriva Pharmaceuticals, Inc. Traitement de la bronchopneumopathie chronique obstructive par inhalation a faible dose d'inhibiteur de protease
KR101556872B1 (ko) * 2004-05-24 2015-10-01 브리티쉬 아메리칸 토바코 (인베스트먼츠) 리미티드 니트로스아민 선택성인 분자 각인 중합체 및 이의 사용 방법
CN1301076C (zh) * 2004-05-26 2007-02-21 长沙卷烟厂 高分子聚合物卷烟滤嘴添加剂及应用
CN1762251B (zh) * 2004-10-18 2012-03-14 南通醋酸纤维有限公司 消除烟气中有害物质的烟用醋酸纤维丝束的生产方法
GB0517551D0 (en) * 2005-08-27 2005-10-05 Acetate Products Ltd Process for making filter tow
TW200806206A (en) * 2006-04-17 2008-02-01 Filligent Ltd Method and device for making tobacco smoke filters
KR101055909B1 (ko) 2008-07-07 2011-08-09 한현수 독성 및 유해가스 여과용 바이오세라믹 촉매 여과물질 및그 제조방법
EP2269475B1 (fr) 2009-06-30 2013-08-14 Olig AG Filtre pour une cigarette sans fumée
US9386803B2 (en) * 2010-01-06 2016-07-12 Celanese Acetate Llc Tobacco smoke filter for smoking device with porous mass of active particulate
US20120048285A1 (en) * 2010-03-26 2012-03-01 Philip Morris Usa Inc. Supramolecular complex flavor immobilization and controlled release
EA025010B1 (ru) * 2010-10-06 2016-11-30 СЕЛАНИЗ ЭСИТЕЙТ ЭлЭлСи Фильтры табачного дыма для курительных устройств с пористыми массами, имеющими наполнение частицами углерода и перепад давления в капсуле
JP5728584B2 (ja) 2010-10-15 2015-06-03 セラニーズ アセテート，エルエルシー 煙フィルタ用多孔質体を形成する装置、システム、および関連方法
CN102247010B (zh) * 2011-07-02 2013-08-21 云南瑞升烟草技术（集团）有限公司 一种线状功能型纤维材料在卷烟中的应用
US8967155B2 (en) 2011-11-03 2015-03-03 Celanese Acetate Llc Products of high denier per filament and low total denier tow bands
GB2504495A (en) * 2012-07-30 2014-02-05 British American Tobacco Co Fleece for smokeless tobacco pouch
CN103645109A (zh) * 2013-12-17 2014-03-19 中国烟草总公司郑州烟草研究院 一种卷烟滤嘴中焦油截留效率和焦油截留量的测定方法
CN103674877A (zh) * 2013-12-17 2014-03-26 中国烟草总公司郑州烟草研究院 一种卷烟滤嘴中焦油截留量的测定方法
KR102601834B1 (ko) 2014-12-29 2023-11-14 필립모리스 프로덕츠 에스.에이. 소수성 필터
CN105105336A (zh) * 2015-09-19 2015-12-02 刘明 中药川贝母粒子净化烟气过滤烟嘴
CN107746872A (zh) * 2017-09-21 2018-03-02 云南中烟工业有限责任公司 一种针对电子烟气溶胶水提物的细菌回复突变试验
US10798965B2 (en) * 2017-12-12 2020-10-13 Banana Bros, Llc Multi-stage filtration device
JP7176885B2 (ja) * 2018-08-09 2022-11-22 株式会社ダイセル セルロースアセテート組成物及び成形体
CN111184253B (zh) * 2018-11-14 2022-03-25 南通烟滤嘴有限责任公司 细支滤棒用丝束规格的选择方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1300854B (de) * 1965-05-14 1969-08-07 Reemtsma H F & Ph Filter fuer Zigaretten
JPS50125100A (fr) 1974-03-19 1975-10-01
JPS5312600B2 (fr) 1974-06-21 1978-05-02
JPS5132799A (ja) 1974-09-13 1976-03-19 Toyo Ink Mfg Co Tabakonokemuryofuirutaa
CH621051A5 (en) * 1976-12-15 1981-01-15 Cigarette Components Ltd Tobacco smoke filter and manufacturing process for this
JPS5922511B2 (ja) * 1978-04-22 1984-05-26 ダイセル化学工業株式会社 たばこ煙用フイルタ−
JPS5831981A (ja) * 1981-08-20 1983-02-24 ダイセル化学工業株式会社 たばこ煙のフイルタ−
JPS6049476B2 (ja) * 1983-04-02 1985-11-01 株式会社ラツクスオ−ド タバコ喫味調整剤
US4729390A (en) * 1985-07-31 1988-03-08 Eastman Kodak Company Tobacco smoke filtering material
WO1987002869A1 (fr) 1985-11-12 1987-05-21 Kabushiki Kaisya Advance Adsorbant pour une substance mutagene contenue dans la fumee du tabac et son utilisation
DE3820089A1 (de) * 1988-06-13 1989-12-14 Bat Cigarettenfab Gmbh Verfahren zur impraegnierung von fasern eines tabakrauchfilters mit di- oder polycarbonsaeuren bzw. anhydriden derselben
US5150721A (en) * 1990-02-28 1992-09-29 Lee Benedict M Tobacco smoke filter material and process for production thereof
JPH0523159A (ja) * 1991-07-19 1993-02-02 Kikkoman Corp タバコフイルター
US5465739A (en) * 1992-04-15 1995-11-14 R. J. Reynolds Tobacco Company Cigarette and cigarette filter element therefor
US5275859A (en) * 1992-12-21 1994-01-04 Eastman Kodak Company Tobacco smoke filter
US5746231A (en) * 1993-01-11 1998-05-05 Craig Lesser Tobacco smoke filter for removing toxic compounds
DE4320384A1 (de) 1993-06-19 1994-12-22 Mann & Hummel Filter Aktivkohlefilter zur Kraftstofftankentlüftung
DE4416101C2 (de) * 1994-04-19 1997-06-12 Reemtsma H F & Ph Tabakerzeugnisse oder Tabakerzeugnissen ähnliche Waren mit antioxidativ wirkenden Naturstoffen und Verfahren zur Herstellung derselben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9716986A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006037640A2 (fr) * 2004-10-06 2006-04-13 Rhodia Acetow Gmbh Filtre ou element filtrant de fumee de tabac ayant une teneur en additifs
WO2006037640A3 (fr) * 2004-10-06 2006-06-15 Rhodia Acetow Gmbh Filtre ou element filtrant de fumee de tabac ayant une teneur en additifs

Also Published As

Publication number Publication date
ES2154420T3 (es) 2001-04-01
PL184287B1 (pl) 2002-09-30
SI9620124A (sl) 1998-12-31
NO982079D0 (no) 1998-05-07
KR19990067457A (ko) 1999-08-16
LV12123A (lv) 1998-09-20
NO306144B1 (no) 1999-09-27
EE03660B1 (et) 2002-04-15
EE9800152A (et) 1998-12-15
WO1997016986A1 (fr) 1997-05-15
NZ321598A (en) 1999-08-30
AU701048B2 (en) 1999-01-21
CA2234795C (fr) 2002-04-30
BR9611382A (pt) 1999-12-28
IL124335A (en) 2000-10-31
SK59898A3 (en) 1998-10-07
HK1016434A1 (en) 1999-11-05
LT4447B (lt) 1999-01-25
CA2234795A1 (fr) 1997-05-15
RU2140758C1 (ru) 1999-11-10
JPH11501525A (ja) 1999-02-09
PT859558E (pt) 2001-03-30
US6145511A (en) 2000-11-14
AU7496496A (en) 1997-05-29
DE19541873A1 (de) 1997-05-15
IS1800B (is) 2002-01-16
TR199800832T2 (xx) 1998-07-21
CN1202086A (zh) 1998-12-16
RO118922B1 (ro) 2004-01-30
DE59605994D1 (de) 2000-11-16
SK282028B6 (sk) 2001-10-08
GR3035218T3 (en) 2001-04-30
UA42853C2 (uk) 2001-11-15
CZ294476B6 (cs) 2005-01-12
CZ9801420A3 (cs) 2000-10-11
IS4737A (is) 1998-05-08
LV12123B (lv) 1998-12-20
NO982079L (no) 1998-05-07
CN1105518C (zh) 2003-04-16
KR100265506B1 (ko) 2000-09-15
HUP9903488A2 (en) 2000-07-28
BG102414A (en) 1999-04-30
GEP20002134B (en) 2000-06-25
JP3604397B2 (ja) 2004-12-22
ATE196829T1 (de) 2000-10-15
LT98063A (en) 1998-10-26
EP0859558B1 (fr) 2000-10-11
IL124335A0 (en) 1999-01-26
PL326553A1 (en) 1998-09-28
DK0859558T3 (da) 2001-01-29
BG63814B1 (bg) 2003-02-28
HUP9903488A3 (en) 2001-02-28

Similar Documents

Publication Publication Date Title
EP0859558B1 (fr) Cigarette filtre
DE68923858T2 (de) Selektive Abgabe und Retention von Aldehyd und Nikotin-Nebenprodukten aus Zigarettenrauch.
EP1796488B1 (fr) Filtre ou element filtrant de fumee de tabac ayant une teneur en additifs
DE19951062C2 (de) Hochleistungs-Zigarettenfilter
EP0756461B1 (fr) Produits du tabac ou substances analogues contenant des substances naturelles a action antioxydante, et leur procede de production
EP0632970B1 (fr) Produits à base d&#39;acétate de cellulose, leur utilisation pour la fabrication de cordons filtrants pour la fabrication de filtres à fumée de tabac ainsi que les cordons filtrants et filtres à cigarettes
EP1843670B1 (fr) Cigarette filtre
EP0632969B1 (fr) Cordon filtrant et son procédé de fabrication ainsi qu&#39;une filtre pour fumée de tabac et son procédé de fabrication
DE1517265A1 (de) Zigarettenfilter
EP1389922B1 (fr) Cordon filtrant compose de filaments continus et crepes d&#39;acetate de cellulose
WO1993007771A1 (fr) Filtre de cigarette
DE2109919A1 (de) Filterstrang für Tabakrauchfilter und Verfahren zu seiner Herstellung
DE2341685C3 (de) Zigarettenfilter aus Celluloseacetatfasern und Verfahren zu seiner Herstellung
DE2559542C3 (de) Zigarerfenfilter
MXPA98003702A (en) Cigarette with fil
WO2024170274A1 (fr) Matériau fibreux destiné à être utilisé en tant que matériau de filtre et/ou matériau de remplissage pour embouts, mèche faite d&#39;un tel matériau fibreux et embouts pour produits à fumer faits d&#39;un tel matériau de mèche

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980408

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19990707

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RHODIA ACETOW GMBH

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001011

REF Corresponds to:

Ref document number: 196829

Country of ref document: AT

Date of ref document: 20001015

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20001012

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ISLER & PEDRAZZINI AG

REF Corresponds to:

Ref document number: 59605994

Country of ref document: DE

Date of ref document: 20001116

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20001211

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20001204

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2154420

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: ISLER & PEDRAZZINI AG;POSTFACH 1772;8027 ZUERICH (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20081027

Year of fee payment: 13

Ref country code: IE

Payment date: 20081028

Year of fee payment: 13

Ref country code: DK

Payment date: 20081024

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20081028

Year of fee payment: 13

Ref country code: AT

Payment date: 20081023

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20081024

Year of fee payment: 13

Ref country code: SE

Payment date: 20081027

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20081021

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20081031

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20091026

Year of fee payment: 14

Ref country code: CH

Payment date: 20091026

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20091027

Year of fee payment: 14

BERE Be: lapsed

Owner name: *RHODIA ACETOW G.M.B.H.

Effective date: 20091031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20091023

Year of fee payment: 14

Ref country code: GB

Payment date: 20091023

Year of fee payment: 14

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20100430

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100430

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091031

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100504

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091031

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20110501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091101

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20101031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110501

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101031

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20111118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101101

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20111216

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130501

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59605994

Country of ref document: DE

Effective date: 20130501