EP2381804A1 - Filtre pour produits à base de tabac - Google Patents

Filtre pour produits à base de tabac

Info

Publication number
EP2381804A1
EP2381804A1 EP10702410A EP10702410A EP2381804A1 EP 2381804 A1 EP2381804 A1 EP 2381804A1 EP 10702410 A EP10702410 A EP 10702410A EP 10702410 A EP10702410 A EP 10702410A EP 2381804 A1 EP2381804 A1 EP 2381804A1
Authority
EP
European Patent Office
Prior art keywords
tobacco product
product filter
filter according
tobacco
methyl
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.)
Withdrawn
Application number
EP10702410A
Other languages
German (de)
English (en)
Inventor
Roland Kalb
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.)
VTU Holding GmbH
Original Assignee
VTU Holding 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 VTU Holding GmbH filed Critical VTU Holding GmbH
Publication of EP2381804A1 publication Critical patent/EP2381804A1/fr
Withdrawn legal-status Critical Current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
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/70—Fixation, conservation, or encapsulation of flavouring agents
    • A23L27/77—Use of inorganic solid carriers, e.g. silica
    • 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
    • A24D3/12—Use of materials for tobacco smoke filters of ion exchange 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
    • A24D3/16—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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon
    • 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
    • A24D3/166—Silicic acid or silicates

Definitions

  • the invention relates to a tobacco product filter, in particular a
  • Tobacco product filter which has ionic liquids. Furthermore, the invention relates to a method for the reduction of pollutants in tobacco smoke.
  • a cigarette filter is intended to reduce the amount of harmful substances such as condensate, the so-called tar and gases in the smoke of the cigarette.
  • the filter makes the smoke a bit milder, which is why some smokers remove or shorten it for a more intense taste.
  • the filter is wrapped in a cork-colored mouthpiece to prevent the filter's brown color from becoming visible.
  • most manufactured cigarettes are provided with a filter. You can buy home-makers in the tobacco trade.
  • Cigarette filters are mostly cellulose, which is obtained from wood. The cellulose is converted into cellulose acetate in a complex chemical process. Subsequently, the acetate flakes are dissolved in acetone and spun out of a spinning solution to long threads. The diameter of the fibers is 30 to 50 microns. Very many threads are merged into an endless band. To form the filter, the fibers are selectively glued, for example by means of triacetin, to obtain the gas permeability. Such a filter can retain particles up to a diameter of about 0.2 microns. About 40% to 70% of the particles and up to 80% of the phenols of the tobacco smoke are retained. Additional activated carbon filters retain up to 85% of the gas phase components. Brief description of the invention
  • a tobacco article filter comprising a substrate having an immobilized ionic liquid.
  • tobacco product filter may in particular be understood to mean all types of filters which are suitable for removing all or part of harmful substances, particles, gases or the like from tobacco smoke.
  • the tobacco product filter may be suitable for forming cigarette, cigarillos and pipe filters.
  • tobacco is to be interpreted broadly and includes all smokable substances.
  • a method of removing pollutants from tobacco smoke comprising providing a tobacco product filter according to an exemplary aspect of the invention and passing tobacco product smoke through the tobacco product filter.
  • the pollutants may be physically removed from the tobacco smoke by means of the ionic liquid or be extracted.
  • Such physical extraction may in particular be distinguished from a chemical extraction in which the pollutants are chemically bound to, for example, the cation of an ionic liquid or a crystal structure, for example a zeolite.
  • a filter comprising a carrier material with an immobilized ionic liquid to remove contaminants from tobacco product smoke is provided.
  • immobilizing may in this case be understood in particular to be an attachment to a carrier structure or a carrier material. Such an addition may in particular be distinguished from incorporation in the construction of a crystal structure. Such solid incorporation, e.g. as a cation of a zeolite is usually carried out by means of ionic bonds, while an addition by other forces, e.g. van der Waals ties, is possible. Overall, therefore, immobilization in the sense of the application may not be understood to be a solid incorporation into a crystal structure.
  • Ionic liquids are - in the sense of recognized literature (eg Wasserscheid, Peter, Welton, Tom (Eds.), "Ionic Liquids in Synthesis", published by Wiley-VCH 2003, ISBN 3-527-30515-7, Rogers, Robin D. ; Seddon, Kenneth R. (Eds.); “Ionic Liquids - Industrial Applications to Green Chemistry", ACS Symposium Series 818, 2002; ISBN 0841237891 ”) - liquid organic salts or salt mixtures consisting of organic cations and organic or inorganic anions Melting points of below 100 0 C. In these salts may be additionally dissolved inorganic salts and further molecular Excipients.
  • Ionic liquids have very interesting properties, such as a very low to almost non-measurable vapor pressure, a very large liquidus range, good electrical conductivity and unusual solvation properties. These properties predestine them for use in various areas of technical applications. For example, they can be used as solvents (in organic and inorganic synthesis in general, in transition metal catalysis, biocatalysis, phase transfer catalysis, in multiphase reactions, in the
  • ionic liquids have excellent properties as solvents or extraction agents for polymers, biopolymers (eg cellulose, chitin), biomass (eg wood, ie cellulose + lignin, ie a polyphenol, proteins), metals in eg aqueous solution, gases such as CO 2 , NO x , polar organic compounds such as alcohols, carboxylic acids, ethers, esters, ketones and amines, aromatic hydrocarbons, etc. show.
  • biopolymers eg cellulose, chitin
  • biomass eg wood, ie cellulose + lignin, ie a polyphenol, proteins
  • metals in eg aqueous solution
  • gases such as CO 2 , NO x
  • gases such as CO 2 , NO x
  • polar organic compounds such as alcohols, carboxylic acids, ethers, esters, ketones and amines, aromatic hydrocarbons, etc. show.
  • ionic liquids for the respective application within wide limits by a variation of the structure of anion and cation or a variation of their combination done what the ionic liquids.
  • designer solvent see, for example, Freemantle, M Chem. Eng. News, 78, 2000, 37.
  • a filter for tobacco products which is effective for effectively removing or at least reducing harmful, often carcinogenic, tobacco smoke ingredients.
  • such a filter may be suitable for removing or at least reducing one or a plurality of the ingredients listed below from the tobacco smoke.
  • o Nicotine include in particular: o Nicotine; tar and tarry condensates; o carbon monoxide, hydrocyanic acid, nitrogen oxides, ammonia; o hydrazine, coumarin, nitropropane, urethane, vinyl chloride; o aldehydes such as formaldehyde, acetaldehyde, acrolein,
  • crotonaldehyde crotonaldehyde
  • o acids such as e.g. Acetic acid, formic acid
  • o anhydrides e.g. Maleic anhydride, 2,3-
  • PHA polycyclic aromatic compounds
  • N-nitrosodimethylamine N-nitrosomethylethylamine, N-nitrosodiethylamine, N-nitrosodipropylamine, N-nitrosodibutylamine, N'-nitroso-nortnicotin, N-nitrosodiethanolamine, 1-nitrosopyrrolidine and 1-nitrosopiperidine, N-nitrosonornicotin, 4- (methylnitrosamino ) -l- (3-pyridyl) -1-butanone, N'-nitrosoanatabine, N'-nitrosoanabasine; o metals, in particular heavy metals, in whatever form (eg as steam, ionic, particles, organically bound), such as, for example, Cr, Mn, Co, Ni, Cu, Ag, Cd, Hg, Pb, As, Sb, Bi, Se, Te, Ra, Th, Po; o Mechanically acting particles such as carbon black, fibers (eg from conventional cellulose a
  • Embodiments of the tobacco product filter will be described below. However, the features of the embodiments also apply to the method of removing pollutants from tobacco smoke and the use of filters.
  • the carrier material has a large inner surface.
  • Inner surface may be understood in particular that the inner surface is very large compared to the outer surface.
  • the inner surface may be larger than the outer surface by a factor of more than 1000.
  • Such a large inner surface may in particular assist or improve the filter effect of the tobacco product filter.
  • Under an inner surface in particular the totality of all surfaces contained in, for example, porous or granular solids, including those which are between the individual grains or by the
  • the specific surface may be considered.
  • a suitable inner surface or suitable specific surface may be defined by the fact that a sufficient filtering effect, which may be defined by means of a predetermined criterion, is achievable.
  • Such a definable criterion may be, for example, that at least 30%, 40%, 50%, 60%, 70%, 80%, 90% or more of the pollutants to be filtered out are filtered out.
  • the specific surface area of the support material may range from about 1 m 2 / g to about 2000 m 2 / g.
  • the carrier material has a structure selected from the group consisting of porous structures, spongy structures, fibrous structures, powdery structures, granular structures, membrane-like structures, and sheet-like structures.
  • the fibrous structures may be in the form of a fabric, which may be woven, spun, felted or knitted, for example.
  • the powdery structures may or may be sintered. In particular, like the membranous and / or the sheet-like structures are folded.
  • the carrier material may have a structure which corresponds to a mixture of a plurality of said structures.
  • a granular structure may be incorporated in a fibrous structure or membrane-like structure.
  • all structures may be suitable which have a sufficient permeability for tobacco smoke in the case of a large inner surface.
  • a foil-like and / or membrane-like structure may be formed as a support structure or external structure into which a granulated and / or fibrous structure is then introduced.
  • the carrier material comprises at least one material selected from the group consisting of activated carbon, charcoal, stone, in particular limestone, coral break or pumice, zeolite, silica gel, ceramics, silica gel, diatomaceous earth, alumina, plastic, in particular polyethylene, glass fibers, mineral wool, paper, cellulose, cellulose acetate and meerschaum.
  • the support material may comprise a mixture of a plurality of said materials.
  • these materials may be materials which are suitable for a carrier material and which can immobilize an ionic liquid.
  • these materials may also be suitable for forming a support structure that provides a large interior surface.
  • the ionic liquid has a melting point of less than 200 ° C.
  • the ionic liquid may have a melting point of below 100 ° C.
  • the ionic liquid corresponds to the general formula ([A] + ) a [B] a ", but here the salts may be tetramethylammonium bromide, tetraethylammonium bromide, tetrapropylammonium bromide and
  • Tetrabuthylammoniumbromid be excluded as ionic liquids. Also, anionic sulfites may be excluded.
  • [A] + represents a toxicologically acceptable cation which is selected, in particular, from the group consisting of the following cations: cations with short alkyl side chains, cations with polar functional groups in the side chains, and natural cations ,
  • short alkyl side chain cations may be those having one to eight carbon atoms (C 1 to C 8 ) and preferably one to four carbon atoms (C 1 to C 4 ).
  • Examples of polar, functional groups in the side chains may be alcohol, ether, ester, ketone or cyano groups.
  • Examples of cations which occur in nature are, for example, cholinium HOCH 2 CH 2 N + (CH 3 ) 3 , acetylcholinium H 3 C-CO-CH 2 CH 2 N + (CH 3 ) B,
  • a toxicologically acceptable anion may be selected from the group consisting of anions derived from fruit acids, sugar acids, amino acids, Fatty acids, volatile acids and resin acids derived or which are conjugated to these acids.
  • fruit acids may be, in particular, oxalic acids, benzoic acids, salicylic acids, citric acids, tartaric acids, ascorbic acids, lactic acids and malic acids or the protonated anions of oxalate, benzoate, salicylate, citrate, tartrate, ascorbate, lactate, malate and the like.
  • sugar acids are in particular uronic acids and onic acids, for example linear or else cyclic tetronic acids, tetruronic acids, pentonic acids, penturonic acids, hexonic acids, hexuronic acids, in particular gluconic acids, glucuronic acids or protonated anions of gluconate, glucuronate, mannonate, mannuronate, galatonate, galacturonate, fructonate, Fructuronate, xylonate and the like.
  • uronic acids and onic acids for example linear or else cyclic tetronic acids, tetruronic acids, pentonic acids, penturonic acids, hexonic acids, hexuronic acids, in particular gluconic acids, glucuronic acids or protonated anions of gluconate, glucuronate, mannonate, mannuronate, galatonate, galacturonate, fructonate, Fructuronate, xylonate and the
  • amino acids or natural amino acids may in particular be alanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine and VaNn.
  • the fatty acids may be monocarboxylic acids having from four to 26 carbon atoms (C4 to C26), which fatty acids may be unsaturated, saturated or mixtures of saturated and unsaturated fatty acids.
  • fatty acids include alkyl acids, alkenoic acids, alkanoic acids, alkenyl acids, alkadienoic acids, in particular the protonated anions of caprinate, laurinate, myristate, palmitate, margarinate, arachinate, behenate, myristoleinate, palmitolate, petroselinate, oleate, elaidinate, vaccenate, icosenate, cetoleinate, linolenate , Linolat and the like.
  • volatile acids may be in particular the protonated anions of acetate, formate, butyrate and the like.
  • the term "toxicologically harmless” may in particular be understood to mean that the toxicity of the corresponding substance is below a predetermined, for example prescribed by law, value or that no toxicological effect of the substance is present or at least known. In particular, such substances may not have harmful effects.
  • the terms "natural cations” or “natural anions” may in particular be understood to mean those which are naturally present in nature and thus in contrast to cations or anions produced or produced by man, which are also known as anthropogenic or synthetic cations or Anions can be designated.
  • [A] + is a quaternary ammonium cation [R 1 R 1 R 2 R 3 N] + , a phosphonium cation [R 1 R 1 R 2 R 3 P] + , a sulfonium Cation [R 11 R 1 R 2 S] + or a heteroaromatic cation.
  • R 1 ' , R 1 , R 2 and R 3 may be radicals, for example independently of one another, hydrogen, unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl or heteroaryl radicals; or two of R 1 , R 1 ' , R 2 , R 3 together with the heteroatom to which they are attached form a ring, which is saturated or unsaturated, unsubstituted or substituted, and this chain is represented by one or more heteroatoms selected from the group O, S, NH or N-Ci-C 4 -alkyl may be interrupted. In particular, however, may be excluded the case that all radicals are formed by hydrogen or a proton. Also, organic sulfites may be excluded as a cation.
  • heteroaromatic of the formula is usually a 5- or 6-membered heteroaromatic, which has at least one nitrogen atom and optionally an oxygen or sulfur atom, and which is unsubstituted or substituted and / or anneliert, preferably the heteroaromatic of the formula IIb is selected from Group:
  • R is hydrogen, Ci-C 30 alkyl, C 3 -C 2 -cycloalkyl, C 2 -C 30 - alkenyl, C 3 -C 2 -cycloalkenyl, C 2 -C 30 alkynyl, aryl or heteroaryl, wherein the 7 the latter radicals may carry one or more halogen radicals and / or 1 to 3 radicals selected from the group dC 6 alkyl, aryl, heteroaryl, C 3 -C 7 cycloalkyl, halogen, OR C , SR C , NR c R d , COR C , COOR C , CO-NR c R d , wherein R c and R d is hydrogen, Ci-C 6 alkyl, Ci-C 6 haloalkyl, cyclopentyl, cyclohexyl, phenyl, ToIyI or benzyl;
  • R 1 , R 1 ' , R 2 , R 3 independently of one another represent hydrogen, optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl or heteroaryl; or two of R 1 , R 1 ' , R 2 , R 3 together with the heteroatom to which they are attached form a ring, which is saturated or unsaturated, unsubstituted or substituted, and this chain is represented by one or more heteroatoms selected from the group O, S, NH or N-Ci-C 4 alkyl may be interrupted;
  • R 4 , R 5 , R 6 , R 7 , R 8 independently of one another are hydrogen, halogen, nitro, cyano, OR C , SR C , NR c R d , COR C , COOR C , CO-NR c R d , dC 30 -alkyl, C 3 - Ci 2 cycloalkyl, C 2 -C 30 -alkenyl, C 3 -C 2 selected cycloalkenyl, aryl or heteroaryl, wherein the 6 latter residues can carry one or more halogen residues and / or 1 to 3 residues from the group dC 6 -alkyl, aryl, heteroaryl, C 3 -C 7 -cycloalkyl, halogen, OR C , SR C , NR c R d , COR C , COOR C , CO-NR c R d , wherein R c and R d independently of each other Are hydrogen, Ci-
  • R e, R f, R 9, R h are each independently hydrogen, Ci-C 6 - alkyl, aryl, heteroaryl, C 3 -C 7 -cycloalkyl, halogen, OR C, SR C, NR c R d, COOR C , CO-NR c R d or COR C is substituted, wherein R c , R d independently of one another are hydrogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, cyclopentyl, cyclohexyl, phenyl, ToIyI or benzyl, however preferably represents hydrogen, halogen or C 1 -C 6 -alkyl, in particular hydrogen or C 1 -C 6 -alkyl.
  • the charge "a-" of the anion [B] a ⁇ is "1-", "2-" or "3-".
  • Examples of doubly negatively charged anions include sulfate, hydrogen phosphate and carbonate.
  • An example of a triply negatively charged anion is called phosphate.
  • radicals R 'to R 1 in tetrasubstituted borate (Va), the radical R m in the organic sulfonate (Vb) and Sulfate (Vc), the radical R n in the carboxylate (Vd) and the radicals R 0 to R u in the imides (Vf), (Vg) and (Vh) are independently of each other preferably
  • Cyclohexylpropyl, methoxy, ethoxy, formyl, acetyl or C n F 2 (na) + (ib) H 2a + b with n ⁇ 30, 0 ⁇ a ⁇ n and b 0 or 1 (for example CF 3 , C 2 F 5 , CH 2 CH 2 -C (n-2) F 2 (n-2) + i / C ⁇ Fi 3, CsFi 7 , CioF 2 i, Ci 2 F 25 );
  • R 1 to R 1 are identical, being preferably fluorine , Trifluoromethyl, pentafluoroethyl, phenyl, 3,5-bis (trifluoromethyl) phenyl.
  • Particularly preferred tetrasubstituted borates (Va) are tetrafluoroborate, tetraphenylborate and tetra [3,5-bis (trifluoromethyl) phenyl] borate.
  • the radical R m is preferably methyl, trifluoromethyl Pentafluoroethyl, p-tolyl or C 9 Fi 9
  • Particularly preferred organic sulfonates (Vb) are trifluoromethanesulfonate (triflate), methanesulfonate, nonadecafluorononanesulfonate (nonaflate) and p-toluenesulfonate, particularly preferred organic sulfates (Vc) are methylsulfate, ethylsulfate, n- Propyl sulfate, i-propyl sulfate, butyl sulfate, pentyl sulfate, hexyl sulf
  • R n preferably represents hydrogen, trifluoromethyl, Pentafluorethyl, phenyl, hydroxy-phenyl-methyl, trichloromethyl, dichloromethyl, chloromethyl, trifluoromethyl, difluoromethyl, fluoromethyl or unbranched or branched ci to d 2 alkyl, such as methyl, ethyl, 1-propyl, 2-propyl, 1-butyl , 2-butyl, 2-methyl-1-propyl (isobutyl), 2-methyl-2-propyl (tert-butyl), 1-pentyl, 2-pentyl, 3-pentyl, 2-methyl-1-butyl, 3-methyl-1-butyl, 2-methyl-2-butyl, 3-methyl-2-butyl, 2,2-dimethyl-1-propyl, 1-hexyl, 2-hexyl, 2-hexyl, 2-hexyl, 2-hexyl, 2-hexyl, 2-hexyl, 2-
  • Particularly preferred carboxylates (Vc) are formate, acetate, propionate, butyrate, valerate, benzoate, mandelate, trichloroacetate, dichloroacetate, chloroacetate, trifluoroacetate, difluoroacetate, fluoroacetate.
  • the radicals R 0 to R u are independently of one another preferably hydrogen, trifluoromethyl, pentafluoroethyl, phenyl, trichloromethyl, dichloromethyl, chloromethyl, trifluoromethyl, difluoromethyl , Fluoromethyl or straight or branched C 1 -C 12 -alkyl, such as, for example, methyl, ethyl, 1-propyl, 2-propyl, 1-butyl, 2-butyl, 2-methyl-1-propyl (isobutyl), 2-methyl 2-propyl (tert-butyl), 1-pentyl, 2-pentyl, 3-pent
  • Particularly preferred imides (Vf), (Vg) and (Vh) are [F 3 C-SO 2 -N-SO 2 -CF 3] "[F 3 C-SO 2 -N-CO-CF 3]", [F 3 C-CO-N-CO-CF 3 ] " and those in which the radicals R 0 to R u independently of one another represent hydrogen, methyl, ethyl, propyl, butyl, phenyl, trichloromethyl, dichloromethyl, chloromethyl, trifluoromethyl, Difluoromethyl or fluoromethyl stand.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)

Abstract

La présente invention concerne un filtre pour produits à base de tabac qui présente une matière de support comprenant un liquide ionique immobilisé. Par "filtre pour produits à base de tabac", on entend notamment tout type de filtre capable d'éliminer de la fumée du tabac les substances nocives, les particules, les gaz ou analogues. Le filtre de l'invention peut se présenter en particulier sous la forme d'un filtre à cigarettes, d'un filtre à cigares et d'un filtre pour pipes.
EP10702410A 2009-01-12 2010-01-08 Filtre pour produits à base de tabac Withdrawn EP2381804A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14395009P 2009-01-12 2009-01-12
PCT/EP2010/000063 WO2010079141A1 (fr) 2009-01-12 2010-01-08 Filtre pour produits à base de tabac

Publications (1)

Publication Number Publication Date
EP2381804A1 true EP2381804A1 (fr) 2011-11-02

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EP10702410A Withdrawn EP2381804A1 (fr) 2009-01-12 2010-01-08 Filtre pour produits à base de tabac

Country Status (8)

Country Link
US (1) US20120037174A1 (fr)
EP (1) EP2381804A1 (fr)
JP (1) JP2012514974A (fr)
KR (1) KR20110105386A (fr)
CN (1) CN102333462A (fr)
BR (1) BRPI1006118A2 (fr)
RU (1) RU2011133754A (fr)
WO (1) WO2010079141A1 (fr)

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CN111317172B (zh) * 2018-12-14 2022-11-11 湖南中烟工业有限责任公司 一种具有降低卷烟主流烟气中氨释放量的卷烟滤棒添加剂及其制备方法和应用

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WO2010079141A1 (fr) 2010-07-15
CN102333462A (zh) 2012-01-25
US20120037174A1 (en) 2012-02-16
RU2011133754A (ru) 2013-02-20
JP2012514974A (ja) 2012-07-05
KR20110105386A (ko) 2011-09-26

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