EP0364805B1 - Artikel zur Simulation des Rauchens - Google Patents

Artikel zur Simulation des Rauchens Download PDF

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Publication number
EP0364805B1
EP0364805B1 EP89118278A EP89118278A EP0364805B1 EP 0364805 B1 EP0364805 B1 EP 0364805B1 EP 89118278 A EP89118278 A EP 89118278A EP 89118278 A EP89118278 A EP 89118278A EP 0364805 B1 EP0364805 B1 EP 0364805B1
Authority
EP
European Patent Office
Prior art keywords
carrier structure
nicotine
article according
active part
article
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.)
Expired - Lifetime
Application number
EP89118278A
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German (de)
English (en)
French (fr)
Other versions
EP0364805A1 (de
Inventor
Hermann Schwartz
Max Burger
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.)
Burger Soehne AG
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Burger Soehne AG
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 Burger Soehne AG filed Critical Burger Soehne AG
Priority to AT89118278T priority Critical patent/ATE101493T1/de
Publication of EP0364805A1 publication Critical patent/EP0364805A1/de
Application granted granted Critical
Publication of EP0364805B1 publication Critical patent/EP0364805B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00—Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/20—Devices without heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00—Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/60—Constructional details

Definitions

  • the invention relates to an article for simulating smoking by inhaling nicotine without exposure to heat, with a housing having an air inlet and an air outlet opening, which contains a support structure inside which receives a nicotine preparation which can be evaporated at room temperature.
  • the tubular housing contains, as a nicotine support structure, an absorbent mass (for example a roll of filter paper) with a central longitudinal bore which is widened towards both ends.
  • the absorbent mass is saturated with a liquid nicotine preparation.
  • nicotine liquid should evaporate on the surface of the borehole as a result of the Venturi effect and can thus be inhaled.
  • EP-A 0 202 512 in turn describes a "smoker" article of the type mentioned at the beginning, with which on the one hand one increased nicotine release per puff, but in particular an effective evaporation to avoid that nicotine in droplet form is carried away by the draft.
  • This is to be achieved by a porous plug made of polymerized material, in which material nicotine is effectively absorbed, that is to say embedded in the interior between the molecular polymer chains. The nicotine release should then take place through desorption from the material when air is drawn through.
  • the present invention is intended to overcome the disadvantages inherent in the known product proposals mentioned above.
  • the aim is to produce an article for "smokeless" nicotine inhalation which is suitable for series production and which, with acceptable amounts of the nicotine preparation to be introduced, enables suitable, metered nicotine loads with train sequences which correspond to the usual smoking processes.
  • the supporting structure essentially filling the effective cross section of the housing and receiving the nicotine preparation forms a plurality of continuous flow channels, on the free and non-absorbing surface of which the nicotine preparation is attached as a thin layer that leaves the channels open.
  • the nicotine preparation is thus exposed to the passing air as a thin film on a relatively large free surface, which practically corresponds to the surface of a "labyrinth" of channels. It is also essential that the material of the support structure is at least tight on the surface of the channels, i.e. is impermeable to the nicotine preparation and the preparation therefore only adheres to the material through adhesion (wetting), but does not penetrate the material through absorption.
  • the preparation should also in no way fill the flow channels, but leave them free for the air flow.
  • the housing can essentially correspond to the shape of a cigarette, but other designs are also conceivable, for example similar to a tobacco pipe, etc.
  • various embodiments are to be considered for the supporting structure, for example a (loose) filling of a granulate, for example of Balls, a bundle of parallel rods, an open-pore sintered body (frit), a solid, open-cell foam, etc.
  • the supporting structure glass is considered particularly suitable because of its tightness, low price, neutral taste and chemical resistance; however, other materials can also be considered, such as aluminum or other metals, glazed or dense ceramics, certain dense plastics such as polytetrafluoroethylene (Teflon) etc.
  • the introduction of the required small amounts of nicotine preparation into the supporting structure can be achieved by applying a measured volume of the preparation to the Outside surface take place, whereupon the liquid spreads relatively quickly over the channel surfaces inside the structure thanks to good wetting.
  • a suitable nicotine preparation is, for example, pure nicotine and other preparations known per se, such as are given, for example, in the publications cited above relating to the prior art and also in EP-A 0 148 749.
  • Any desired aroma substances, such as tobacco aroma, fruit aromas, mint, etc. can either be added to the nicotine preparation or added separately in the housing, for example in a filter-like element or as a "capsule", etc.
  • the nicotine preparation can either be added to the support structure already in the housing, or it can be loaded with nicotine preparation in a preparatory production step and only then inserted into the housing. Protection is therefore also claimed for the prepared supporting structure itself as a preliminary product (claims 18 to 31).
  • the article for simulating smoking according to the example according to FIG. 1 has a housing 10, for example made of plastic, on which a mouthpiece 13 is molded.
  • the air inlet opening 11 of the housing 10 and the air outlet opening formed as a channel 12 in the mouthpiece 13 can be closed if necessary, for example during the storage time of the finished article, by a cover 6 or a stopper 8, both made of soft plastic, for example.
  • a support structure Arranged in the interior of the housing 10 is a support structure, designated overall by 14, which accommodates a nicotine preparation that can evaporate at room temperature, as will be described in more detail below.
  • the support structure 14 has a cylindrical container 15 with a lid 16 and is inserted into the housing 10 from the air inlet opening 11 up to the axial support on stop ribs 19.
  • a number of holes 18 are provided for the passage of air.
  • the container 15 of the support structure 14 is essentially filled with a bed of granules - in the present example glass spheres of the same diameter as one another.
  • This granular bed - it can also be a bed of irregularly shaped grains or balls of different diameters - forms the active part of the support structure 14.
  • the support structure has a plurality of continuous flow channels (here through the interconnected spaces between forms the granules or balls) for the air sucked in during inhalation, a nicotine preparation which can evaporate at room temperature being deposited as a thin layer on the free surface of these channels, which leaves the channels open;
  • the material forming the active part of the support structure is at least dense on the surface, ie it does not absorb the nicotine preparation attached.
  • FIG. 1 An arbitrary region of the ball bed is shown enlarged and designated A (for the sake of simplicity as a regular, densest ball packing in two layers).
  • a container 15 with an inner diameter of 7.5 mm and a length (inside) of 30 mm is filled with glass balls 20 of the same size in order to form the support structure 14.
  • the number of balls that can be accommodated in the container was determined empirically for some ball radii R; it is somewhat less than with theoretically the densest ball packing.
  • This layer thickness can then be compared with the radius r of the incircle (Fig. 1, B.) for a given sphere radius R.
  • Table 1 below, the relationships for three Different sphere sizes are shown with a constant load of 6 mm3 preparation (6 mg pure nicotine): Table 1 Sphere radius R [mm] Number of balls Total spherical area [mm2] Layer thickness [ ⁇ m] Incircle radius r [ ⁇ m] 1.5 52 1470 4.1 232 1.2 98 1773 3.4 186 1 171 2149 2.8 155 0.75 434 3068 1.9 116
  • the thickness of the layer 22 is only a small fraction of the incircle radius r (approximately 1/50 or 1/60). On the one hand, this means that the cross section of the channels 21 remains wide open, and on the other hand that the capillary action on the liquid layers is low, that is to say it is limited to the vicinity of the contact points (and specifically to smaller areas than shown in FIG. 1, B. because there the layer thickness is exaggerated). These ratios do not change fundamentally if the nicotine loading quantity is halved or doubled compared to the assumed 6 mg.
  • the "labyrinth" of the flow channels 21 has a rather large, free evaporation surface which, although it does not correspond to the entire spherical surface (Table 1), does comes close. If air is sucked through the channels 21 when the article is used, part of the nicotine evaporates on this entire wetted surface, which is then inhaled with the air. During a large number of successive trains, the extent of the evaporation surface changes very little, the layer 22 is only gradually removed in thickness.
  • FIG. 2 Another embodiment of an article for simulating smoking is shown in FIG. 2 and is described below described.
  • This article has a housing 10a in the form of a tube, for example with the dimensions of a cigarette, with an air inlet opening 11 and an air outlet opening 12.
  • the support structure 24 for a nicotine preparation is designed here as a bundle of parallel longitudinal rods 30 made of non-absorbent material; preferably, as can be seen from the enlarged section C, the rods 30 have a circular cross section, the interstices between them forming a multiplicity of flow channels 31 for the air which is drawn through.
  • the rods 30 can also have a different, for example irregular, cross section, provided that they leave gaps open for the formation of flow channels.
  • an air-permeable barrier 25 for example in the form of a wire screen, can be inserted into the tube in order to prevent individual rods 30 from escaping.
  • the tube 10a can, for example, be wound from several layers of paper or made from thin cardboard; An impermeable inner coating, for example an aluminum foil, is expediently applied so that the nicotine preparation received by the support structure 24 does not diffuse into the material of the tube 10a.
  • a nicotine preparation evaporable at room temperature is deposited as a thin layer 32, which leaves the flow channels 31 open; in section C, the layer 32 is drawn too thick compared to the diameter of the rods 30, only in order to be able to represent it better.
  • a tube 10a with an inner diameter of 7.5 mm is assumed, in the cross section of which a bundle of parallel, circular rods 30 in the number and possible depending on the rod diameter with a length of 50 mm.
  • a liquid nicotine preparation with a volume of 6 mm 3 is evenly distributed over the entire surface of such a carrier structure 24.
  • Table 3 The resulting geometric relationships for various rod radii (rod diameters 2.4, 2 and 1.5 mm) are shown in Table 3; As a size comparison for the calculated layer thickness, the incircle radius between three contacting rods 30 is again given (not shown in FIG. 2, C.).
  • the incircle radius is a multiple of the calculated layer thickness, ie the cross section of the channels 31 remains wide open and the capillary effect in the "protruding corners" the channels 31 (on either side of a line of contact between two bars 30) remain small.
  • the arrangement - including all the other supporting structures described here - has nothing in common with a porous material which absorbs a liquid and is "saturated” by it. This can also be easily recognized if the total free volume formed by the flow channels 31 or not taken up by the volume of the rods 30 is calculated.
  • the choice of material for the support structure also ensures that the nicotine preparation is on the structure surface attached layer remains and is not diffused into the interior of the material or is absorbed by the material.
  • the article may be desirable for the article to contain flavorings, for example tobacco flavor, fruit flavors, mint or the like, which are to be inhaled together with the evaporated nicotine.
  • flavorings and / or other additives can be added to liquid pure nicotine, which mixture is introduced into the supporting structure as a nicotine preparation.
  • tobacco flavor oil known per se should be mentioned, which is suitable for mixing with pure nicotine.
  • aroma substances or the like in a separate carrier in addition to the supporting structure in the housing of the article.
  • a separate aroma carrier is shown schematically in FIG. 2 as an air-permeable "plug" 26, for example made of cigarette filter material or the like.
  • plug an air-permeable "plug" 26
  • Such a carrier 26 is expediently arranged in front of the support structure 24 in the housing, based on the direction of flow of the air; an arrangement behind the support structure seems less suitable, since part of the evaporated nicotine carried in the air stream could then be absorbed again in the material of the carrier 26.
  • the further exemplary embodiment of an article according to FIG. 3 has a housing 10b with a mouthpiece 13, air inlet opening 11 and air outlet opening 12 similar to that in FIG. 1.
  • Support structure 34 for a nicotine preparation has a self-supporting cylindrical body arranged in the housing 10b.
  • it is a solid, open-cell foam body with a structure as can be seen from the greatly enlarged section D.
  • the cavities or "cells" 36 distributed in the interior of the body are connected to one another at numerous points and form a multiplicity of flow channels 37 which run through the support structure 34 and are also "networked" with one another in many ways.
  • a nicotine preparation that evaporates at room temperature is also deposited on the entire surface of the cells 36 or channels 37 as a thin layer that leaves the channels open (the layer is not shown in FIG. 3).
  • the support structure 34 must also be dense, ie non-absorbent, at least on its surface (surface of the cells 36 or the channels 37); glass is again the most suitable material.
  • An open-cell foam body with an internal structure roughly according to section D can also be understood as a "positive-negative reversal" of a ball bed, i.e. the open cells or "bubbles" of the foam take the place of the balls in the ball bed.
  • the total surface area of the bubbles is probably somewhat smaller than would be achievable with a ball filling (sum of the ball surfaces), but on the other hand, there are practically no recessed corners in the foam structure and therefore no capillary action.
  • a body that can be used as a support structure 34 can also be produced as a sintered body from a bed of balls or grains of the same or different grain size.
  • the structural properties of the body can be set within wide limits as required; the same also applies to the production of open-cell foam bodies.
  • Such structural properties can be important for the introduction of the nicotine preparation and its distribution on the surface, but in particular for the flow resistance of the support structure when air is drawn through.
  • So-called open-pore sintered glass which can be produced with specifically set structural parameters and in the desired outer shape, has proven to be a very suitable material for the support structure 34.
  • An average pore size in a range between approximately 150 and 300 ⁇ m and a pore volume of approximately 50 to 80% may be mentioned merely as an example; such a product is free of binders and largely inert and has a large specific surface area which is readily wettable with the nicotine preparation.
  • a cylindrical stopper of this type 8.5 mm in diameter and 10 mm in length, loaded with 4 mg of pure nicotine, inhalable amounts of nicotine of the order of 12 to 16 ⁇ g can be achieved during the first 100 to 150 puffs.
  • FIG. 4 shows, on a somewhat larger scale than before, a further embodiment which differs from those according to FIGS. 1 to 3 especially in the outer shape of the support structure and the flow conditions resulting therefrom.
  • a support structure 44 in the form of a cylindrical tube is arranged in the interior of a cylindrical, broken housing 10c with an air inlet opening 11 and an outlet bore 12. The end of the tube adjacent to the housing opening 11 is closed by a disk 43 and centered between a plurality of support ribs 41 formed on the inside of the housing 10c and distributed over the circumference. The other end of the tube extends over a connecting piece 42 surrounding the bore 12 and is thereby also centered.
  • the tensile resistance and the available total surface of the flow channels can be set largely independently of one another. (It is only to be mentioned as an indication that the draw resistance of various cigarette brands varies within wide limits between approximately 35 and 120 mm WS).
  • the supporting structures are preferably held with a vertical axis, and a measured volume of liquid is applied from a closed container to one end face of the structure by means of a metering device known per se (in the structure 14 according to FIG. 1 with the cover 16 removed).
  • a metering device known per se (in the structure 14 according to FIG. 1 with the cover 16 removed).
  • the liquid preparation spreads quickly over the surface of the flow channels thanks to its good wettability and relatively quickly penetrates to the opposite end of the structure.
  • gentle shaking or vibrating can promote the spreading of the liquid.
  • the load-bearing structure can be loaded either before or after installation in the housing. In any case, a separate production and "assembly" of the support structure can be useful regardless of the housing in the context of a large-scale production.
  • the support structure in all embodiments that, as already mentioned several times, its material should at least be so dense on the surface that the nicotine preparation does not absorb becomes.
  • chemically resistant and dense metals or metal alloys for example aluminum, can also be used as materials. Structures made of dense and / or glazed ceramic should also be considered.
  • special plastics such as polytetrafluoroethylene (Teflon) or polybutylene terephthalate, which are known to be particularly dense or impermeable, would also be conceivable.
  • Teflon polytetrafluoroethylene
  • polybutylene terephthalate which are known to be particularly dense or impermeable, would also be conceivable.

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  • Manufacture Of Tobacco Products (AREA)
  • Fireproofing Substances (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP89118278A 1988-10-19 1989-10-03 Artikel zur Simulation des Rauchens Expired - Lifetime EP0364805B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89118278T ATE101493T1 (de) 1988-10-19 1989-10-03 Artikel zur simulation des rauchens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH389588 1988-10-19
CH3895/88 1988-10-19

Publications (2)

Publication Number Publication Date
EP0364805A1 EP0364805A1 (de) 1990-04-25
EP0364805B1 true EP0364805B1 (de) 1994-02-16

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US (1) US5101838A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0364805B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH02171174A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE101493T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1313805C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE58906983D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES2048808T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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US2425624A (en) * 1943-07-26 1947-08-12 Lardinois Omer Inhaling device
US4284089A (en) * 1978-10-02 1981-08-18 Ray Jon P Simulated smoking device
US4813437A (en) * 1984-01-09 1989-03-21 Ray J Philip Nicotine dispensing device and method for the manufacture thereof
US4800903A (en) * 1985-05-24 1989-01-31 Ray Jon P Nicotine dispenser with polymeric reservoir of nicotine
US4765348A (en) * 1986-12-12 1988-08-23 Brown & Williamson Tobacco Corporation Non-combustible simulated cigarette device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101677634B (zh) * 2007-03-16 2013-04-24 汉斯-于尔根·霍夫曼 无烟香烟及其制造方法

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ATE101493T1 (de) 1994-03-15
DE58906983D1 (de) 1994-03-24
ES2048808T3 (es) 1994-04-01
JPH02171174A (ja) 1990-07-02
EP0364805A1 (de) 1990-04-25
CA1313805C (en) 1993-02-23
US5101838A (en) 1992-04-07
JPH0579344B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-11-02

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