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EP2013114B1 - Récipients sous pression comprenant des polyéthylène glycols et du dioxyde de carbone en tant qu'agent propulseur - Google Patents

Récipients sous pression comprenant des polyéthylène glycols et du dioxyde de carbone en tant qu'agent propulseur Download PDF

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Publication number
EP2013114B1
EP2013114B1 EP07720118A EP07720118A EP2013114B1 EP 2013114 B1 EP2013114 B1 EP 2013114B1 EP 07720118 A EP07720118 A EP 07720118A EP 07720118 A EP07720118 A EP 07720118A EP 2013114 B1 EP2013114 B1 EP 2013114B1
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EP
European Patent Office
Prior art keywords
propellant
polyethylene glycol
pressure vessel
carbon dioxide
pressure
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.)
Active
Application number
EP07720118A
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German (de)
English (en)
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EP2013114A1 (fr
Inventor
Jörg GEIGER
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.)
Aerosol Service AG
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Aerosol Service AG
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Publication of EP2013114A1 publication Critical patent/EP2013114A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
    • B65D83/64—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by pistons
    • B65D83/643—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by pistons the propellant being generated by a chemical or electrochemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/141—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant specially adapted for specific contents or propellants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
    • B65D83/62—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like
    • B65D83/625—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like the propellant being generated by a chemical or electrochemical reaction

Definitions

  • the present invention relates to pressure vessels, in particular aerosol cans, in which the propellant and the pressurized material are present in separate chambers.
  • the above-mentioned pressure chambers with separate chambers have the advantage over ordinary, single-chamber pressure or aerosol containers in that they are capable of dispensing the product in any spatial orientation, without first having to shake the container.
  • Another advantage of these two-chambered containers is that no consideration has to be given to any chemical incompatibilities between the propellant and the product.
  • Examples of such containers are, on the one hand, the spray containers, which contain a flexible bag with the material to be sprayed inside, and wherein the blowing agent fills the gap between this bag and the actual container. With increasing emptying of the container of material to be sprayed, the bag is compressed by the action of the propellant and thus ensures that the remaining portion of the material to be sprayed is still under pressure.
  • the term "bag in a can" is often used in the art.
  • the two-chamber containers of this first type available on the market in the present application are the containers marketed by the assignee of the present application under the trade names LamiPACK, COMPACK, MicroCOMPACK, and AluCOMPACK.
  • ⁇ -in-a-can Another category of such containers are those known in the art by the term "can-in-a-can".
  • a second, inner box is provided which gradually folds up under the action of the propellant and with increasing emptying.
  • Another category of dual chamber containers are those in which the propellant presses from below onto a movable piston located in the container.
  • This piston is typically first mounted near the container bottom; the propellant is located in the cavity between the container bottom and piston.
  • the material to be sprayed is located above the piston in the remaining cavity of the container. With increasing emptying of the container from the material to be sprayed, the piston slides upward through the action of the propellant within the container and thus ensures that the remaining portion of the product to be sprayed is still under pressure.
  • piston-containing pressure vessels are sold for example by the United States Can Company.
  • blowing agents used in the two-chamber containers described above are typically gaseous carbon dioxide, air, nitrogen, liquid gases such as propane and butane, fluorine-chlorine hydrocarbons or fluorocarbons.
  • Object of the present invention is to provide an improved pressure vessel of the type mentioned.
  • the pressure vessels according to the invention comprise a propellant with a liquid phase which comprises a polyethylene glycol and / or a (C 1 -C 4 ) monoether and / or a C 1 -C 4 ) diether of a polyethylene glycol.
  • the polyethylene glycols or their ethers may be present as pure substances; As a rule, however, the polyethylene glycols or their ethers, as a result of their preparation, are mixtures of compounds having different, approximately normally distributed molecular weights.
  • i is an index running across all molecular types of the polyethylene glycol and / or polyethylene glycol monoether and / or polyethylene glycol diether
  • N i and M i, respectively, are the number of molecules in the ith molecular species and the molecular weight of the ith molecular species.
  • This average molecular weight M w can, as is customary in the art, be diluted by means of laser light scattering measurements based on the principle of "Multi Angle Light Scattering" (MALS) Solutions of the polyethylene glycol or polyethylene glycol are determined. The required measuring devices are known and commercially available. The determination of the M w from the obtained scattering measurements can be made using the Zimm equation and the associated Zimm diagram.
  • MALS Multi Angle Light Scattering
  • the M w of the polyethylene glycol and / or the ether thereof can be selected depending on the ambient temperatures at which the pressure vessel according to the invention is to be used: At higher ambient temperatures, a higher molecular weight polyethylene glycol and / or a higher molecular weight polyethylene glycol ether can be used; wherein the polyethylene glycol should be liquid at the desired ambient temperature.
  • the M w of the polyethylene glycol and / or polyethylene glycol monoether and / or polyethylene glycol diether may preferably be in the range from 200 to 600 daltons, more preferably in the range of about 250 to about 390 daltons; most preferably it is about 300 daltons.
  • polyethylene glycol monoethers and polyethylene glycol diethers are, for example, the compounds listed in the aforementioned reference of "Canadian Journal of Chemical Engineering” in Table 1.
  • diethers are used.
  • the liquid phase of the propellant may contain a cosolvent.
  • cosolvents may be antifreeze such as dipropylene glycol or ethylene glycol; it may also be viscosity modifying additives such as water; it may also be foam inhibitors such as N-octanol.
  • cosolvents if they are to be present, are preferably added in amounts of from 0.1 to 5 percent by weight, based on the liquid, still carbon dioxide-free phase.
  • the liquid phase contains only just one polyethylene glycol having M w in the ranges indicated above, if desired in combination with one of the cosolvents mentioned above.
  • the liquid phase contains only just a polyethylene glycol diether with M w in the ranges indicated above, if desired in combination with one of the cosolvents mentioned above.
  • the polyethylene glycol diether is particularly preferably a polyethylene glycol 1,4-dibutyl ether, such as "Polyglycol BB 300" marketed by Clariant.
  • the summed content of polyethylene glycol and polyethylene glycol mono- and -diethern and dissolved therein carbon dioxide is in the liquid phase of the propellant preferably at least 90 weight percent, based on the liquid phase, more preferably at least 95 weight percent.
  • the ratio of the partial pressure of the carbon dioxide to the total pressure is preferably at least 0.9, more preferably at least 0.95 and particularly preferably at least 0.98.
  • the blowing agent is preferably prepared before, before filling in the inventive pressure vessel.
  • a liquid phase comprising a selected from the polyethylene glycols and their (C 1 -C 4 ) monoethers their (C 1 -C 4 ) diethers selected compound, be subjected to carbon dioxide (if desired, the pressure reactor before Be charged with carbon dioxide evacuated to remove air debris).
  • the propellant is allowed to equilibrate, which can be checked by adjusting the pressure constancy.
  • the function (1a) can be determined experimentally by means of a simple measuring apparatus for each pressure vessel and propellant according to the invention (see below in the description of FIGS. 7 and 8th ).
  • the value pairs P, ⁇ V thus obtained can be plotted as P (y-axis) against ⁇ V (x-axis), giving a curve according to formula (1b); they can also be plotted as ⁇ V (y-axis) versus P (x-axis), giving a curve according to formula (1a).
  • the temperature dependence of the pressure in the propellant chamber of the pressure vessel according to the invention is surprisingly relatively low. This is attributed to the fact that the pressure in the gas phase, which increases with increasing temperature, is partially compensated for by the likewise increasing temperature absorption of the carbon dioxide in the liquid phase, which leads to a reduction in the amount of carbon dioxide in the gas phase.
  • FIGS. 4 to 6 show this as an example for PEG 300 ( 4 and 5 ) and PEG dibutyl ether ( Fig. 6 ).
  • T ⁇ 25 ° C there is a pressure change of ⁇ 2bar. Below and above this temperature jump, the pressure is relatively constant as a function of temperature. The jump in pressure at T ⁇ 25 ° C takes place independently of the amount of dissolved carbon dioxide and, consequently, independent of the absolute value of the pressure at T ⁇ 25 ° C.
  • the pressure vessels according to the invention have a separating part which is capable of variably subdividing the interior of the pressure vessel into a propellant chamber and a storage chamber.
  • separating member are all means that are used in prior art pressure vessels with divided interior, such as in pressure vessels of the type mentioned "bag-in- ⁇ -can", "can-in- ⁇ -can” or the type with movable piston .
  • the materials for the separator are not critical, as far as they do not dissolve in the respective polyethylene glycol and / or mono- or diethers of polyethylene glycol.
  • Materials for membrane-type parting agents are, for example, flexible plastics which have been rendered insoluble by crosslinking, for example vulcanized rubbers or latex, or crosslinked polyesters or polyetherpolyesters.
  • the separator should, because of the use of the liquid phase in the propellant, be capable of liquid-tight partitioning between the reservoir and the propellant chamber.
  • the separating part also forms a gas-tight barrier between the storage chamber and the propellant chamber.
  • the separating part is preferably designed as a movable piston or as an expandable and / or foldable inner bag.
  • the pressure vessel according to the invention can also have a valve and a spray head, so that the material can be released into the environment in a controlled manner by actuating the spray head and the valve.
  • the pressure vessel according to the invention is then preferably an aerosol container or a spray can.
  • it may also be a cartridge which does not yet have an outlet valve and in which only by clamping in a removal device, a hole in the container wall pricked and this is closed at the same time with a sampling valve.
  • the term "at least a portion of the length of the central axis” as used in the claims preferably means at least 50% by length, based on the total length of the central axis of the interior.
  • the term "center axis” is understood to mean the longest straight line which can be laid inside the interior and which is defined by the two geometric penetration points of this line through the inside of the wall of the interior; in rotationally symmetric internal spaces, the central axis is the axis of rotation.
  • the total length of the central axis is defined in all cases by the two geometric fürstossfrac the central axis through the inside of the wall of the interior.
  • the term "at least a portion of the interior” as used in the claims preferably means at least 70 percent by volume based on the total volume of the interior.
  • the interior has in all embodiments of the pressure vessel according to the invention preferably over at least part of the length of the central axis of the interior of rotationally symmetrical, in particular cylindrical shape.
  • the good that can be filled in the inventive pressure vessel is a at the temperature at which the inventive pressure vessel is used, gaseous, liquid material or a finely divided dry or suspended in a liquid Good, as in the prior art pressure vessels, in particular previously known aerosol containers, is used.
  • finely divided is in the frame understood the present application that the finely divided material can be sprayed through a conventional spray nozzle.
  • the term "finely divided” is preferably understood as meaning a particle size which is from about 0.1 ⁇ m to about 100 ⁇ m particle diameter (measured as "mass median aerodynamic diameter" MMAD). In a particularly preferred embodiment, "finely divided” also means a particle size in an inhalable size range of about 1 to about 6 ⁇ m.
  • the pressure vessels according to the invention can be produced and filled in analogy to previously known pressure vessels.
  • the embodiments for valves and spray heads, which are used for the inventive pressure vessel analogous to the prior art pressure vessels, such as the type mentioned "bag-in-a-can" be.
  • the blank can be made of a pressure-resistant thermoplastic, such as acrylonitrile / butadiene / styrene copolymer, polycarbonate or a polyester such as polyethylene terephthalate, or preferably a metal sheet such as stainless steel sheet or aluminum sheet.
  • the blank preferably has the shape of a cylinder, which can be tapered in the direction of its upper cover surface with rounding.
  • the production of this blank can be done in a conventional manner by injection molding (plastic containers) or by cold or optionally hot extrusion (in metal containers).
  • blowing agents which can be used in the pressure vessels according to the invention are themselves new and are therefore also the subject of the present invention. These are blowing agents consisting of: a) a gas phase comprising carbon dioxide, and b) a liquid phase comprising more than 90% by weight, based on the liquid phase, of a polyethylene glycol and dissolved carbon dioxide, with the proviso that the compound is not polyethylene glycol 400.
  • FIGS. 7 and 8th show the measured dependence of the pressure P in the propellant chamber of inventive aerosol containers (spray cans) as a function of sprayed Volume ⁇ V.
  • the respective still carbon dioxide-free liquid phase was in a mixing cylinder, which withstands a maximum pressure of 10 bar, presented and sealed.
  • the liquid phase was treated with CO 2 via a plug valve with integrated tap.
  • CO 2 was admitted until a pressure of 10 bar was in the mixing cylinder.
  • the valve was closed and the measuring cylinder shaken vigorously until the pressure remained constant even with shaking. Subsequently, CO 2 was admitted again. This process was repeated until the desired pressure in the mixing cylinder was not exceeded even after shaking.
  • the previously prepared blowing agent containing about 5 weight percent carbon dioxide was pumped without gas phase with a pump in the filling machine ("Pamasol" product filler) and filled into commercial cans with inner bag.
  • the nominal volume of the cans was 118 ml each, the volume of their inner bag was 60 ml and the filled amount of propellant was 12 g per can.
  • water was filled into the inner bag with the product filler. The final initial pressure in the cans is in the FIGS. 7 and 8th visible as y-intercept.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Medicinal Preparation (AREA)
  • Cosmetics (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Carbon And Carbon Compounds (AREA)

Claims (19)

  1. Récipient à pression pour la réception d'un produit pressurisé (7, 9) sous forme gazeuse, liquide ou particulaire fine, comprenant une paroi (1) dotée d'un côté de paroi intérieur qui définit un espace intérieur du récipient à pression; une pièce de séparation (2, 12) se trouvant dans l'espace intérieur qui divise l'espace intérieur en une chambre de stockage (3) et en une chambre d'agent propulseur (4), la chambre de stockage comprenant le produit (7, 9) et la chambre d'agent propulseur (4) comprenant un agent propulseur, la pièce de séparation (2, 12) étant capable de divisier de façon étanche aux fluides en chambre de stockage (3) et en chambre d'agent propulseur (4), et étant capable de varier, sous l'effet de l'agent propulseur, le rapport volumique entre chambre de stockage (3) et chambre d'agent propulseur (4) en faveur de la chambre d'agent propulseur (4),
    le récipient à pression étant caractérisé en ce que l'agent propulseur consiste en
    a) une phase gazeuse (5) qui comprend du gaz carbonique, et
    b) une phase liquide (6) qui comprend un composé choisi parmi les polyéthylènes glycols et leurs mono-éthers en C1 à C4 et leurs diéthers en C1 à C4, et du gaz carbonique dissous dans celui-ci.
  2. Récipient à pression selon la revendication 1, dans lequel la pièce de séparation est une poche interne (2) pouvant être étirée et/ou plissée, qui est capable de varier, par contraction et/ou repliement, le rapport volumique entre chambre de stockage (3) et chambre d'agent propulseur (4).
  3. Récipient à pression selon la revendication 1, dans lequel l'espace interne présente un axe médian et, sur au moins une partie de la longueur de cet axe médian, ladite partie étant continue, une section perpendiculaire à l'axe médian qui est constante pour ce qui est de la forme et de la surface, et la pièce de séparation est un piston mobile (12) qui se situe de façon à s'ajuster exactement du côté de paroi intérieur et qui est capable de varier, par un mouvement le long de ladite partie de l'axe médian, le rapport volumique entre chambre de stockage (3) et chambre d'agent propulseur (4).
  4. Récipient à pression selon l'une des revendications précédentes, dans lequel au moins une partie de l'espace intérieur présente une forme cylindrique.
  5. Récipient à pression selon l'une des revendications 1 à 4, caractérisé en ce que dans la phase liquide (6) la proportion totale de polyéthylène glycol et de mono-éther de polyéthylène glycol et de diéther de polyéthylène glycol et de gaz carbonique dissous est supérieure à 90 % en poids, de manière davantage préférée est d'au moins 95 % en poids, et de manière particulièrement préférée est d'au moins 98 % en poids par rapport à la phase liquide (6).
  6. Récipient à pression selon l'une des revendications 1 à 5, caractérisé en ce que le polyéthylène glycol ou le mono-éther de polyéthylène glycol ou le diéther de polyéthylène glycol présente un Mw dans la gamme de 200 à 600, de manière davantage préférée de 200 à 390 et de manière particulièrement préférée d'environ 300.
  7. Récipient à pression selon l'une des revendications 1 à 6, caractérisé en ce que la phase liquide comprend un polyéthylène glycol ou un polyéthylène glycol-1,4-dibutyléther.
  8. Récipient à pression selon l'une des revendications 1 à 7, caractérisé en ce que dans la phase gazeuse (5) de l'agent propulseur le rapport de pression partielle du gaz carbonique à la pression totale est d'au moins 0,90, de manière davantage préférée d'au moins 0,95, et de manière particulièrement préférée d'au moins 0,98.
  9. Récipient à pression selon l'une des revendications 1 à 8, caractérisé en ce qu'il est capable, à l'aide d'une soupape, à la distribution contrôlée du produit de la chambre de stockage (3).
  10. Récipient à pression selon la revendication 9, caractérisé en ce qu'il est capable, à l'aide d'une tête de vaporisation (8), de vaporiser le produit.
  11. Récipient à pression selon la revendication 10, caractérisé en ce qu'il est un récipient d'aérosol.
  12. Récipient à pression selon l'une des revendications 1 à 8, caractérisé en ce qu'il est une cartouche.
  13. Agent propulseur, consistant de
    a) une phase gazeuse (5) qui comprend du gaz carbonique, et
    b) une phase liquide (6) qui comprend plus de 90 % en poids, de manière davantage préférée au moins 95 % en poids et de manière particulièrement préférée au moins 98 % en poids, par rapport à la phase liquide (6), d'un polyéthylène glycol et du gaz carbonique dissous dans celui-ci ;
    sous réserve que le polyéthylène glycol ne soit pas du polyéthylène glycol 400.
  14. Agent propulseur selon la revendication 13, dans lequel le polyéthylène glycol est un polyéthylène glycol avec un Mw dans la gamme de 200 à 600, de manière davantage préférée de 200 à 390, et de manière particulièrement préférée de 300.
  15. Agent propulseur selon la revendication 13 ou 14, dans lequel dans la phase liquide (6) la proportion de polyéthylène glycol et de gaz carbonique dissous est supérieur à 90 % en poids, de manière davantage préférée d'au moins 95 % en poids, et de manière particulièrement préférée d'au moins 98 % en poids par rapport à la phase liquide (6).
  16. Agent propulseur selon l'une des revendications 13 à 15, dans lequel le polyéthylène glycol est un polyéthylène glycol avec Mw dans la gamme de 200 à 600, de manière davantage préférée de 200 à 390, et de manière particulièrement préférée d'environ 300.
  17. Agent propulseur selon l'une des revendications 13 à 16, dans lequel dans la phase gazeuse (5) le rapport de pression partielle du gaz carbonique à la pression totale est d'au moins 0,90, de manière davantage préférée d'au moins 0,95, et de manière particulièrement préférée d'au moins 0,98.
  18. Procédé de distribution contrôlée d'un produit sous forme gazeuse, liquide ou particulaire fine, caractérisé en ce que le produit est mis à disposition dans la chambre de stockage (3) d'un récipient à pression selon l'une des revendications 1 à 10, et que le produit est distribué d'une manière contrôlée au moyen d'une soupape de la chambre de stockage (3) du récipient sous pression.
  19. Procédé selon la revendication 18, dans lequel le produit est vaporisé au moyen d'une tête de vaporisation.
EP07720118A 2006-05-04 2007-05-03 Récipients sous pression comprenant des polyéthylène glycols et du dioxyde de carbone en tant qu'agent propulseur Active EP2013114B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7242006 2006-05-04
PCT/CH2007/000221 WO2007128157A1 (fr) 2006-05-04 2007-05-03 Récipients sous pression comprenant des polyéthylène glycols et du dioxyde de carbone en tant qu'agent propulseur

Publications (2)

Publication Number Publication Date
EP2013114A1 EP2013114A1 (fr) 2009-01-14
EP2013114B1 true EP2013114B1 (fr) 2010-04-21

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US (1) US8240509B2 (fr)
EP (1) EP2013114B1 (fr)
AT (1) ATE465101T1 (fr)
CA (1) CA2651096C (fr)
DE (1) DE502007003514D1 (fr)
DK (1) DK2013114T3 (fr)
ES (1) ES2345009T3 (fr)
RU (1) RU2430003C2 (fr)
WO (1) WO2007128157A1 (fr)

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CN105541523B (zh) * 2015-12-15 2017-11-10 湖北航天化学技术研究所 一种热塑性碳氢推进剂组合物
PL3655346T3 (pl) 2017-07-17 2022-05-02 Rocep Lusol Holdings Limited Urządzenie dozujące
US12037996B2 (en) 2020-09-29 2024-07-16 Ut-Battelle, Llc Fuel driven near isothermal compressor

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US5167347A (en) * 1991-04-22 1992-12-01 Clairol Incorporated Multi-fluid mixing and automatic metering dispenser
RU2016820C1 (ru) * 1991-06-29 1994-07-30 Анатолий Яковлевич Столяревский Способ создания избыточного давления газообразного диоксида углерода внутри рабочего объема упаковки для распыления вещества
EP0776834A1 (fr) * 1995-11-29 1997-06-04 Viorica Dipl.-Ing. Muntean Récipient pour la distribution d'aérosols ou de mousses
JP4666716B2 (ja) * 2000-05-26 2011-04-06 株式会社ダイゾー エアゾール製品
GB0106046D0 (en) * 2001-03-12 2001-05-02 Glaxo Group Ltd Canister
FR2824539B1 (fr) * 2001-05-09 2003-12-19 Oreal Dispositif pour le conditionnement separe de deux produits, et leur distribution sous pression, de maniere separee ou en melange

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US20090184131A1 (en) 2009-07-23
ES2345009T3 (es) 2010-09-13
DE502007003514D1 (de) 2010-06-02
CA2651096A1 (fr) 2007-11-15
RU2430003C2 (ru) 2011-09-27
DK2013114T3 (da) 2010-08-16
WO2007128157A1 (fr) 2007-11-15
RU2008148122A (ru) 2010-06-10
US8240509B2 (en) 2012-08-14
EP2013114A1 (fr) 2009-01-14
ATE465101T1 (de) 2010-05-15
CA2651096C (fr) 2014-07-08

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