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EP0569590B1 - Verfahren zum erzeugen eines überdrucks von sorbiertem gas in einer aerosol-verpackung - Google Patents

Verfahren zum erzeugen eines überdrucks von sorbiertem gas in einer aerosol-verpackung Download PDF

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Publication number
EP0569590B1
EP0569590B1 EP92915519A EP92915519A EP0569590B1 EP 0569590 B1 EP0569590 B1 EP 0569590B1 EP 92915519 A EP92915519 A EP 92915519A EP 92915519 A EP92915519 A EP 92915519A EP 0569590 B1 EP0569590 B1 EP 0569590B1
Authority
EP
European Patent Office
Prior art keywords
sorbent
gas
package
substance
atomized
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
EP92915519A
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English (en)
French (fr)
Other versions
EP0569590A1 (de
EP0569590A4 (en
Inventor
Anatoly Yakovlevich Stolyarevski
Aleksandr Sergeevich Doronin
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.)
INTERNATIONAL CENTER OF SCIENTIFIC CULTURE WORLD
Original Assignee
INTERNATIONAL CENTER OF SCIENTIFIC CULTURE WORLD
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Publication of EP0569590A1 publication Critical patent/EP0569590A1/de
Publication of EP0569590A4 publication Critical patent/EP0569590A4/en
Application granted granted Critical
Publication of EP0569590B1 publication Critical patent/EP0569590B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D83/62—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 invention relates to packaging techniques and can be used, for instance, in aerosol packages, purposed for applying paint and varnish coatings, in medicine, mainly for breast diseases prophylaxis and treatment and local anaesthesia, in perfumery, and also in housekeeping for spraying different household chemical substances etc.
  • European Patent Application EP - A - 385773 discloses a gas storage and dispensing system for the substantially reversible storage of a gas.
  • Said gas storage and dispensing system comprising a polymeric material having molecular microvoids occupiable by the gas to cause the polymeric material to form a two-phase gas/solid reversible sorption gas storage system which will tend to sorb increasing quantities of gas in increasing ambient gas pressure, and tend to desorb previously sorbed gas with decreases in ambient gas pressure.
  • Gas which comprises carbon dioxide, can be used as propellant.
  • a dispenser can comprise a semi-permeable barrier enclosing the gas storage and dispensing system, the semi-permeable barrier being permeable to propellant gas but substantially impermeable to the non-gaseous component or components of gas storage and dispensing system whereby the semi-permeable barrier passes the propellant gas to pressurise the product by direct contact while maintaining the non-gaseous component or components of the gas storage and dispensing system out of direct contact with the product.
  • the opportunity of use of absorption capacity of the atomized liquid to provide decrease of the range of the change of initial and ultimate pressure in the sealed package is not provided. Decrease of this range provides in its turn the efficiency of quality of spraying in the proposed method.
  • an hydrophobic membrane 460 (p. 15, line 13-25) is used. This membrane does not prevent penetration of vapors of the atomized liquid through it in to the sorption system 30. Penetration of vapors of the atomized liquid through the membrane, particularly aromatie substances from the atomized deodorant liquid, will cause to rapid decrease of their quantity in the composition of the atomized liquid. This result to worsen consumer capacity (quality) of deodorant.
  • acetone is one of the elements in the composition of the sorption system 30. Vapors of acetone can penetrate through a hydrophobic membrane 460 so that to change the composition of the atomized subtance, worsening consumer capacity of the package.
  • French application No. 2331485 discloses an aerosol package in which an atomized product is located in a first chamber of the aerosol package, a second chamber contains solid sorbent and propellant, the second chamber being provided with a changing valve and means for passing propellant to the first chamber.
  • FR-A-2596139 discloses a method for charging an aerosol package with a propellant, carbone dioxide. This technical solution, fails to provide a separation of a sorbent from the atomized liquid. Lack of such separation results in negative effects described above. Besides, in such package a valve can be blocked with sorbent particles which leads to failure of the package as a whole.
  • GB-A-1322 942 discloses a variant of an aerosol package structure comprising separated liquid propellant and an atomized liquid, in which spraying is accomplished by injection. This method of spraying is less economical, because it requires extensive accommodation of propellant during usage of the package. Furthermore, the structure does not exclude interaction of the atomized substance with the ambient air inside the package, which is inadmissible in the aerosol packages used for varnishes and paints, medicines and cosmetics.
  • the aforementioned application discloses an aerosol package structure comprising separated propellant source and atomized liquid.
  • the propellant is hydrogen in a form of a hydride of an appropriate element, particularly, metal hydrides.
  • metal hydrides are chemical compounds in which hydrogen molecules form a chemical compound with metal. Heat of metal hydride synthesis reactions is comparable with heat of chemical reactions (10 - 100 kilocalories per mole). Heat of physical adsorption is 1 - 5 kilocalories per mole for simple molecules.
  • the aforementioned systems attain equilibrium at entirely different pressure and temperature values.
  • the method comprises the desorption of CO2, which is dissolved in sorbent, i.e. the liquid to be atomized.
  • the said method is based on creation of big quantity of working gas above the level of liquid to be atomized and due to this in order to increase the fullness of the package (i.e. amount of liquid to be atomized) it is necessary to produce a package with bigger volume and thicker walls. In other words, to increase its materials consumption.
  • the working gas for increasing the package fullness and decreasing nonuniformal flow rate of the substance to be atomized, the working gas must be dissolved in the said substance. i.e. the atomized substance must possess an absorption capacity for the working gas, that limits the range of substances which can be atomized by means of this method.
  • the main objective of the invention is to increase the efficiency of spraying due to usage of volumetric dispersion effect, that is production of drops of smaller dimension and maintaining of this increased degree of dispersion in the process of the aerosol package usage, increased degree of the package charging with spraying product due to decrease volume of the gas cushion of the propellant, extension of the product and propellant range, which can be dispersed by this method.
  • the said objective is achieved according to claim 1 by the method of creation of positive pressure in an aerosol package for spraying a gas-saturated product, including placing a product containing a sorbent to be sprayed and gas sorbed in the sorbent in the aerosol package, and by further providing inside the aerosol package a sealed casing containing a nonspraying sorbent and gas sorbed therein and comprising means for allowing gas desorbed from the nonspraying sorbent to release from the sealed casing into the aerosol package when pressure inside the sealed casing exceeds pressure outside the sealed casing at value of designated pressure differential, the nonspraying sorbent being activated charcoal and/or zeolite having a higher absorption capacity for gas than the sorbent to be sprayed, and preventing the sprayed sorbent and/or its vapors from entering the sealed casing and the nonspraying sorbent from escaping the sealed casing, thereby creating a positive pressure inside the aerosol package for dispensing the gas-saturated
  • the means for allowing desorbed gas out of the sealed casing is a spring valve.
  • the said method of creation a positive pressure in an aerosol package decreases an adverse effect on environment of the use of aerosol packages. Besides, fluctuations of the positive pressure of desorpted gas in the gas cavity during the process of spraying are relatively small due to the high sorption capacity of the working gas in the unchangeable quantity of sorbent, that makes it possible to provide evenness of the spraying substance, that is expecially important in varnish-dye covering.
  • Package loading with sorbent gas, for example, with CO2 just in a solid phase makes package loading operation easier.
  • the given method can be realised in package for different substance dispersion ( spraying ).
  • the construction of the aerosol unit is a sealed capacity 1, made as a cylindrical case 2 ( referring Fig. 1 and Fig. 2 ) with a bottom 3 and a cover 4, which is hermetically connected with a dispersion head 5 and a valve 6.
  • a dispersion head 5 and a valve 6 As it is shown in Figure 1 inside of the outer case 2 there is an inner casing 7 with a working volume 8, filled with dispersed substance 9 ( liquid ).
  • an activated charcoal it can be zeolite
  • a sorbent 11 At the top part of the inner casing 7 there are some holes 12 ( windows, etc. ) by the help of which the working volume 8 is communicated with the cavity 10.
  • a tube 13 In the working volume 8 from its bottom up to the top there is a tube 13 for delivery of the dispersed liquid 9 to the inlet of the dispersion head 5.
  • sorbent gas As sorbent gas there can be used carbon dioxide ( CO2 ) highly used in aerosol packages that answers ecological demands, put to sorbent gases of package, as well as - hydrocarbons, ethers and etc.
  • FIG. 2 there is shown another possible positioning of the sorbent 11 inside the inner casing 7 of the package and/or at the top part of the working volume 8 above the dispersed ( spraying ) liquid level 9. It is also possible to position the sorbent 11 out of the outer case 2 of the package, but in this case it must be put in a separate sealed cavity, communicating by means of a supply main of the desorption gas with a gas cavity of the working volume ( it is not shown in the drawing ). In the top part of the case 2 there is set a charging valve 15 for a dispersed substance. Charging valves 14 and 15 can be set at any convenient place on the outer case 2. The movement schemes of the desorption gas and dispersed substance are shown by arrows in the drawing.
  • dispersed substance supply 9 is provided by means of creating a pseudo-liquated layer by bringing desorption gas, desorpted from the sorbent 11, at the moment of pressure lavering in the working volume 8 when opening the valve 6 of the dispersion head 5.
  • the desorption gas can be brought to the working volume 8 as from the communicated with the working volume cavity 10 where there is a sorbent 11, by the way, this cavity can be got by a ring space between the inner casing 7, containing the dispersed substance 9, and the outer case 2 of the package ( see Fig. 1 ), and - from the sorbent 11, situated just in the working volume 8 ( see Fig. 2 ).
  • Package filling is carried out by the dispersed substance 9 and sorbent 11 and then, for example, by CO2, brought inside the cavity 10 with the sorbent either at a gas state ( at a lower temperature and heat exhaust from the package ) or as liquid (also at a low temperature, for example, about-73 C), or as a solid phase - in a state of "dry ice".
  • Package filling is made taking into account, for example such quantity of CO2 supply into the sorbent cavity which is possible to be absorpted in sorbent in given loading conditions .
  • Sorbent volume in CO2 is determined in this case as by a sorbent type and by a demanded pressure ( P ) of CO2 in the working volume at a given operation temperature ( for example, 17 C ).
  • P a demanded pressure
  • the volume ( a ) of such sorbent as activated charcoal ( type A ⁇ ) is about 33 g of CO2 for 100 g of coal at a temperature ( t ) of 17 C.
  • the initial rate of sorbent filling by CO2 is larger, i.e. it consists of 50 g of CO2 for 100 g of sorbent.
  • working gas supply from the cavity 10 with the sorbent 11 to the working volume 8 is fulfilled only when some given differential pressure between these spaces is obtained, that can be fulfilled by means of the work of the spring valve ( as the work of the valve 6 of the dispersion head 5 ), which opens the inlet of the working gas from volume 8 only at a lower pressure in the working volume (for example, on the state of sraying ) and/or at an increased pressure in the cavity 10 of sorbent (for example, at temperature increasing in this cavity ).
  • activated charcoal characterised by a rather high absorption capability as for as CO2 is concerned and relatively low price, as well as zeolite, the characteristics of which can provide higher pressure P at a given working temperature.
  • liquid sorbents for convenient loading of the package there can be used liquid sorbents as well as in combination with solid ones in the state of which there can be used some organic combinations, in particular, dimethylethertetraethylenealcohol or halogenides.

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  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Medicinal Preparation (AREA)
  • Colloid Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Vacuum Packaging (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Claims (5)

  1. Verfahren zur Erzeugung eines Überdrucks in einer Aerosol-Verpackung (1), um ein mit Gas gesättigtes Produkt zu versprühen, wobei das Verfahren das Anordnen eines Produkts, das ein Sorptionsmittel (9), das versprüht werden soll, sowie ein Gas enthält, das im Sorptionsmittel in der Aerosol-Verpackung sorbiert ist, dadurch gekennzeichnet, dass das Verfahren weiters in der Aerosol-Verpackung einen abgedichteten Behälter (10) vorsieht, der ein nicht zu versprühendes Sorptionsmittel (11) sowie ein darin sorbiertes Gas enthält und eine Einrichtung (12) besitzt, damit das vom nicht zu versprühenden Sorptionsmittel (11) desorbierte Gas vom abgedichteten Behälter in die Aerosol-Verpackung (1) freigegeben werden kann, wenn der Druck im abgedichteten Behälter (10) den Druck außerhalb des abgedichteten Behälters (10) um den Wert eines festgelegten Druckgefälles überschreitet, wobei das nicht zu versprühende Sorptionsmittel (11) Aktivkohle und/oder Zeolith ist, die ein höheres Absorptionsvermögen für Gas als das zu versprühende Sorptionsmittel (9) besitzen, wobei verhindert wird, dass das versprühte Sorptionsmittel und/oder dessen Dämpfe in den abgedichteten Behälter (10) eindringen und das nicht zu versprühende Sorptionsmittel (11) aus dem abgedichteten Behälter (10) austritt, wodurch in der Aerosol-Verpackung (1) ein Überdruck erzeugt wird, um das mit Gas gesättigte Produkt abzugeben.
  2. Verfahren gemäß Anspruch 1, wobei als nicht zu versprühendes Sorptionsmittel (11) sowohl Aktivkohle als auch Zeolith verwendet werden.
  3. Verfahren gemäß Anspruch 1, wobei eine feste Phase eines sorbierten Gases verwendet wird, um das nicht zu versprühende Sorptionsmittel (11) aufzuladen.
  4. Verfahren gemäß Anspruch 1, wobei eine flüssige Phase eines sorbierten Gases verwendet wird, um das nicht zu versprühende Sorptionsmittel (11) aufzuladen.
  5. Verfahren gemäß Anspruch 1, wobei die Einrichtung, durch die das desorbierte Gas aus dem abgedichteten Behälter (10) austreten kann, ein federbelastetes Rückschlagventil ist.
EP92915519A 1991-06-29 1992-06-26 Verfahren zum erzeugen eines überdrucks von sorbiertem gas in einer aerosol-verpackung Expired - Lifetime EP0569590B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SU914950869A RU2016820C1 (ru) 1991-06-29 1991-06-29 Способ создания избыточного давления газообразного диоксида углерода внутри рабочего объема упаковки для распыления вещества
SU4950869 1991-06-29
PCT/RU1992/000129 WO1993000277A1 (en) 1991-06-29 1992-06-26 Method for creation of positive pressure of sorbed gas in working cavity of aerosol package

Publications (3)

Publication Number Publication Date
EP0569590A1 EP0569590A1 (de) 1993-11-18
EP0569590A4 EP0569590A4 (en) 1996-04-10
EP0569590B1 true EP0569590B1 (de) 2000-03-01

Family

ID=21582117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92915519A Expired - Lifetime EP0569590B1 (de) 1991-06-29 1992-06-26 Verfahren zum erzeugen eines überdrucks von sorbiertem gas in einer aerosol-verpackung

Country Status (5)

Country Link
EP (1) EP0569590B1 (de)
AT (1) ATE190031T1 (de)
DE (1) DE69230723T2 (de)
RU (1) RU2016820C1 (de)
WO (1) WO1993000277A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6006955A (en) * 1998-05-13 1999-12-28 Color Access, Inc. Pump package
FR2802515B1 (fr) 1999-12-15 2002-03-01 Oreal Ensemble pour le conditionnement et la distribution sous pression d'un produit, utilisant un propulseur conditionne separement du produit a distribuer
WO2005054742A1 (en) * 2003-12-03 2005-06-16 Chemviron Carbon Limited Storage of gases and their use in dispensing fluids
US8746503B2 (en) 2004-06-12 2014-06-10 Walter K. Lim System and method for providing a reserve supply of gas in a pressurized container
DE502007003514D1 (de) * 2006-05-04 2010-06-02 Aerosol Service Ag Druckbehälter mit polyethylenglykolen und kohlendioxid als treibmittel
GB0621881D0 (en) * 2006-11-02 2006-12-13 Kbig Ltd Product dispensing sytems
WO2008053215A1 (en) 2006-11-02 2008-05-08 Kbig Limited Product dispensing systems
TW200900128A (en) * 2007-02-16 2009-01-01 Advanced Tech Materials Delivery of gases from internally regulated cylinders
EP2165968A1 (de) 2008-09-19 2010-03-24 InBev S.A. Behälterbeutel mit einem Raum unter Vordruck zwischen Innenbeutel und Außenbehälter

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1322942A (en) * 1970-08-07 1973-07-11 Ciba Geigy Ag Devices for producing a flow of gas
US3869070A (en) * 1973-04-10 1975-03-04 Mdt Chemical Corp Aerosol dispensing container for separately stored fluids
US4049158A (en) * 1975-11-13 1977-09-20 S. C. Johnson & Son, Inc. Pressurized container-dispensers and filling method
US4646946A (en) * 1982-09-02 1987-03-03 Reyner Ellis M Pressure generating apparatus and method
US4679706A (en) * 1984-10-29 1987-07-14 Enviro-Spray Systems, Inc. Dispensing system with inflatable bag propelling mechanism and separate product gas phase
DD246746A1 (de) * 1986-03-20 1987-06-17 Bitterfeld Chemie Verfahren zur herstellung mikrobieller uratoxidase
DE3625561A1 (de) * 1986-07-29 1988-02-04 Technica Entwicklung Druckverpackung, insb. aerosoldose fuer fluessige medien
DE3708396A1 (de) * 1987-03-14 1987-10-08 Robert Dipl Ing Weigl Spruehdose mit athmosphaerischer luft als druck- bzw. treibmittel
FI901024A0 (fi) * 1989-03-02 1990-02-28 Rocep Lusol Holdings Lagrings och foerdelningssystem av gas.
DE3937562A1 (de) * 1989-11-11 1991-05-16 Battelle Institut E V Austreibungsvorrichtung fuer zerstaeubbare substanzen aus druckbehaeltern

Also Published As

Publication number Publication date
ATE190031T1 (de) 2000-03-15
DE69230723D1 (de) 2000-04-06
DE69230723T2 (de) 2000-12-28
WO1993000277A1 (en) 1993-01-07
EP0569590A1 (de) 1993-11-18
EP0569590A4 (en) 1996-04-10
RU2016820C1 (ru) 1994-07-30

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