EP3717378B1 - Récipient sous pression à deux composants - Google Patents

Récipient sous pression à deux composants Download PDF

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Publication number
EP3717378B1
EP3717378B1 EP18811776.6A EP18811776A EP3717378B1 EP 3717378 B1 EP3717378 B1 EP 3717378B1 EP 18811776 A EP18811776 A EP 18811776A EP 3717378 B1 EP3717378 B1 EP 3717378B1
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EP
European Patent Office
Prior art keywords
pressurized
closure element
separating disk
central opening
opening
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
EP18811776.6A
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German (de)
English (en)
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EP3717378A1 (fr
Inventor
Jochen BÜRKLE
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.)
Sika Technology AG
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Sika Technology AG
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Publication date
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Publication of EP3717378A1 publication Critical patent/EP3717378A1/fr
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Publication of EP3717378B1 publication Critical patent/EP3717378B1/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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/68—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them
    • B65D83/682—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head
    • B65D83/687—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head the products being totally mixed on, or prior to, first use, e.g. by breaking an ampoule containing one of the products
    • 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60—Contents and propellant separated
    • B65D83/66—Contents and propellant separated first separated, but finally mixed, e.g. in a dispensing head
    • B65D83/666—Contents and propellant separated first separated, but finally mixed, e.g. in a dispensing head product and propellant being totally mixed on, or prior to, first use, e.g. by braking an ampoule containing one of those components

Definitions

  • the invention relates to a two-component pressure can with a frame, a dome, a valve arranged in the dome, a concave base and an opening device arranged in the base and actuatable from the outside through the base.
  • the pressure can is intended in particular for the storage and dispensing of two-component systems, for example assembly foams with a hardener and/or filler component.
  • the invention relates to the construction of pressurized cans which, in addition to the substances of the main component, accommodate a second component which reacts with the main component to form the finished product, a multi-component system.
  • Such systems are used in particular in assembly and insulation technology, for example when foaming door and window frames, when foaming wall openings and gaps, in sound and heat insulation, as well as in the production of foams that have fire-retardant properties through mineral additives receive.
  • two-component systems can be used for the production of two-component paints and two-component adhesives.
  • the main component substances contained in the pressure vessel are liquid and, in the case of an assembly foam, comprise, for example, a polyurethane prepolymer with terminal reactive isocyanate groups. Other common substances are usually present.
  • the main component also contains a liquid gas component, which serves to expel and foam the contents of the can.
  • the liquid gas component also serves as a solvent.
  • the second component in the case of an assembly foam, contains, among other components, a crosslinker capable of reacting with the reactive To react isocyanate groups of the main component.
  • a crosslinker capable of reacting with the reactive To react isocyanate groups of the main component.
  • This is usually a substance with reactive hydrogen atoms, such as water or a polyol.
  • the reaction with the main component takes place immediately after the components are combined, so that the application of the mixture must start immediately after the two components have been mixed.
  • the reaction and the foaming with the help of the propellant lead to the formation of the more or less rigid assembly foam at the point of use.
  • the second component of a two-component pressure can is held in a separate sleeve which is arranged at the base of the pressure can and can be activated through the base by a triggering mechanism.
  • a triggering mechanism This is done, for example, by a ram that protrudes into the inner sleeve from the outside and is pushed against the cover of the inner sleeve and blasts off this cover.
  • the contents of the inner sleeve can then be mixed with the contents of the can by shaking and the product mixture, which has then already reacted, can be discharged.
  • An example is on the WO 85/00157 A referred.
  • these inner sleeves have proven themselves, but they have the disadvantage that the inner sleeve does not offer enough space for a voluminous second component.
  • a second component for example a fire retardant contained in a carrier liquid.
  • flame retardants such as graphite or hydrated aluminum oxide, have proven to be incompatible with the prepolymer, meaning that they can only be mixed into the main component immediately before the pressure can is emptied.
  • the second component also contains a crosslinker.
  • a solution is now being sought that will allow larger quantities of a second component to be accommodated in a two-component pressure can in such a way that the two components are strictly separated from one another during the storage period, but are brought into contact with one another and thoroughly before the pressure can is emptied can be mixed.
  • a two-component pressure can of the type described above in which the can body has a peripheral necking on which a separating disk dividing the can into a lower and an upper chamber is fixed, the separating disk having a central opening with a Closure element is closed, and wherein the opening device can be moved via a trigger against the closure element to detach the closure element from the cutting disc.
  • the two-component pressure cans according to the invention are primarily intended for the application of assembly foams with a hardener and/or filler component, with the filler component being a fire retardant such as graphite, but also a mineral additive to influence the foam properties.
  • the filler component being a fire retardant such as graphite, but also a mineral additive to influence the foam properties.
  • such two-component pressure cans are also suitable for two-component paints, two-component adhesives and other two-component systems that are stored in a pressure can and discharged from a pressure can.
  • the distribution of the two components to the two chambers is arbitrary or follows the respective requirements.
  • the invention allows the volumes of the upper and lower spaces to be tailored to the needs of the particular application. For example, mixing ratios of the first to the second component of 10:90 to 90:10 by volume are easily possible.
  • the adjustment of the pressure cell required for this does not require any major technical effort.
  • the pressure can according to the invention has, in a conventional manner, a dome with an inserted valve, a frame and a base fitted and arched into the frame.
  • An opening for the opening device which can be actuated from the outside via a trigger, is arranged centrally in the floor.
  • the frame has a neck that runs all around at the same height, which serves as support and abutment for a separating disc fitted on the inside, which divides the interior of the can into an upper and a lower chamber.
  • the necking can be arranged at almost any height of the can and thus divide the interior of the can in a ratio in the range of 10:90 to 90:10 by volume.
  • the separating disc which is arranged to divide the interior of the can at the level of the necking, has a central opening which is closed with a closure element.
  • This closure element can be opened with the help of the opening device, wherein the opening device can be actuated through the bottom of the can with a trigger.
  • the opening device can be moved vertically by the trigger, so that the closure element can be opened or blown off from the lower chamber into the upper chamber. With the release of the opening, the contents of the two can chambers can be mixed and react with one another. It is therefore expedient to keep the central opening in the cutting disc relatively large, for example with a diameter of 1/3 to 1/6 of the can diameter.
  • the curvature of the cut-off wheel in the upper chamber is particularly important when the prepolymer component contained in the upper chamber is present there together with the propellant gas under pressure and the second component is filled in the lower chamber without pressure.
  • the curvature stabilizes the cut-off wheel against the pressure, which is also diverted against the outer wall into the neck.
  • the separating disc expediently also has a peripheral edge or collar, which on the one hand brings about stabilization in this area and on the other hand serves, for example, to accommodate a plug and to give it additional support via the wall surface.
  • the cutting disk In order to fix the cutting disk to the neck, it has a peripheral groove, into which the neck engages and which interacts with the neck.
  • a sealing element for example an O-ring or a sealing strip, can be arranged in the area of this groove.
  • the system is self-sealing, since the component penetrating the groove reacts from below and from above to form a polymer and reliably closes any passages.
  • the cutting disc If there are pressure differences between the upper and lower chambers, it is advisable to make the cutting disc from a pressure-resistant plastic in order to avoid deformation.
  • a pressure-resistant Plastic is, for example, polyoxymethylene.
  • the cutting disc can also be made of metal.
  • the cut-off wheel can be installed by means of snapping or snapping the bead of the neck into the groove of the cut-off wheel by pressure, but also by forming the neck in the area of the groove with a cut-off wheel previously inserted.
  • the cutting disc can also be placed after the lower chamber has been filled.
  • the constriction can have any shape suitable for fixing the cutting disk, for example circular or oval, rounded or also stepped.
  • the closure element of the cutting disk can be designed in various ways.
  • a membrane which, for example, is formed integrally with the closure element.
  • a membrane can also be glued or welded on, for example by ultrasonic welding.
  • the membrane must be sufficiently pressure-resistant. At the same time, however, it must either tear open or flake off under the pressure of the opening device.
  • a closure element formed integrally with the separating disk it can therefore be useful to provide predetermined breaking points which tear open under the pressure of the opening device and release the passage opening.
  • a predetermined breaking point has, for example, a circular course along the edge of the membrane.
  • a cap or a cover can be arranged in the central opening of the cutting disk, which is secured in the area of the upper side of the cutting disk, for example by a rim that extends around the collar of the cutting disk and has a circumferential seal on the inside.
  • cap or lid which are usually designed sturdier are as a membrane, glued to the top of the cut-off wheel or the top edge of the collar.
  • the pressure can of the invention has an opening device which is based on conventional principles, such as those in WO 85/00157 A , WO 2004/056660 A , WO 2008/092670 A or WO 2005/05180 A is described. Although the opening devices shown there are intended for opening inner sleeves, they can be applied equally to the pressure can divided according to the invention.
  • the opening device correspondingly has a ram which acts against the closure element and tears open or bursts off the closure element.
  • a release pin which is resiliently mounted in a spring cage centrally located in the floor, can be actuated from the outside with a release and can move the plunger vertically against the closure element. Release pin, plunger and spring cage together with the necessary seals form the opening device.
  • the spring basket is fixed in a plate which is crimped to the floor in the area of the central opening of the floor.
  • release pin protrudes outwards through the bottom of the pressure cell and interacts there with a release which is suitable, for example, for pressing in the release pin. This can be done, for example, by pressing or hitting the bottom of the pressure can forcefully on a smooth surface, which moves the release pin against the plunger and the plunger against the closure element.
  • release pin may be useful to protect the release pin together with the spring cage with a glued-on membrane or overcoat that fits snugly against the device and must be pierced by the release pin when it is actuated.
  • a membrane prevents the penetration of material into the spring basket and the blocking of the spring mechanism by this material.
  • the spring cage as well as the release pin have sealing elements which prevent liquid from escaping from the lower space through the base opening of the can base.
  • this is expediently an O-ring, which acts against the spring cage, and in the case of the spring cage, a sealing disc which is inserted into the base plate and against which the spring cage is braced.
  • the latter has a projection in a known manner, which acts on the bottom side against the base plate and prevents the release pin from being pushed out of the socket and on the valve side acts on the helical spring arranged above it, where it forms the abutment for the helical spring.
  • a screw rod can also be used to open the closure element.
  • a screw rod also interacts with a trigger, which is arranged below the bottom of the can and protrudes through the bottom of the can directly to the closure element or indirectly via a trigger pin.
  • the screw rod is screwed into a threaded block either on the base side or on the valve side, with the threaded block on the base being fixed to the base plate of the opening device and the threaded block on the valve side being fixed to a plug or cover.
  • the threaded rod is screwed out of the threaded block and the closure element is thereby pressed out of its anchorage.
  • a locking device on the closure plate adjacent to the inner edge for example in the form of a pin or mandrel, which is equipped with a corresponding Notch in the lid or stopper rim interacts and blocks rotation.
  • a threaded block arranged on the bottom side which is anchored in the bottom plate, there is no need for blocking; the threaded block is adequately secured by being fixed in the base plate Protected against twisting.
  • measures are required to establish the tightness to the outside, for example by arranging one or more O-rings directly above the passage of the threaded rod through the bottom plate.
  • the thread block is designed in such a way that the thread does not reach the bottom plate but ends above it;
  • the threaded rod and threaded block have a smooth wall above the passage through the base plate, so that sealing with one or more O-rings, which are guided in grooves, for example, is easily possible.
  • the trigger is expediently a toggle or ring guided through a transverse bore located in the end region of the threaded rod outside the can.
  • the pressurized can according to the invention can be manufactured in a simple manner by inserting the prefabricated cutting disk into the cylindrical blank during manufacture of the aerosol can. Fastening takes place by means of the necking or beading, the tightness being established via a seal already arranged in the groove.
  • the lower chamber can be filled, possibly also with gas, through the bottom opening before it is closed with the bottom plate. As a rule, the lower chamber is not completely filled and is depressurized.
  • the upper chamber is filled through the valve opening, which is pressurized with gas through the previously inserted valve. Over time, however, propellant gas also gets from the upper to the lower chamber. However, this is irrelevant for the function.
  • the separating disk When the can is actuated by actuating the plunger or the screw rod, the separating disk is opened, with the result that part of the pressurized contents of the upper chamber are forced into the lower chamber under the action of the propellant gas. There is a mixing and also an exchange of the contents of the two can chambers, which is further promoted by mixing aids in the form of metal balls or metal rods while shaking.
  • the pressure cell is ready for use for dispensing the foam a short time after it has been triggered.
  • FIG. 1 shows a pressure cell according to WO 85/00157 A with a frame 2, which is closed at the top with a dome 3.
  • the dome 3 has a beaded edge that connects the dome and the frame to one another and at the same time creates a tight connection between the parts.
  • the dome 3 is made from a round plate, a shaped part cut out of sheet metal, which has been given the curved shape shown in the drawing by forming.
  • the inner edge of the dome 3 is in turn beaded and accommodates a valve disk with a valve 4 .
  • the base 5 is also connected to the frame 2 via a beaded edge and has a base plate 6 in its center, above which the inner sleeve 7 is located.
  • the inner sleeve 7 has a cover 8 that can be snapped off.
  • the plunger has limiting elements on both sides of the sealing element 10 , both of which act against the sealing element 10 and limit the free path length of the plunger 9 within the inner container 7 .
  • the plunger 9 is pressed against a solid surface by hitting the bottom of the can and caused to move upwards.
  • the rubber-elastic sealing element 10 catches this upward movement and, after the cover 8 has been blown off, returns the plunger 9 to its starting position.
  • the functional principle of the in figure 1 The pressure can shown also applies to the pressure can according to the invention, with the rubber-elastic sealing element 10 being replaced by a spring basket and the inner sleeve being replaced by the separated space below the cutting disk.
  • the use of a plunger 9 together with a rubber-elastic sealing element 10 is also possible according to the invention.
  • FIG. 2 shows the lower part of a pressure can according to the invention in a longitudinal section with the frame 2, the base 5 and the base plate 6.
  • the frame 2 has a peripheral necking 15, which serves to hold the cutting disk 14.
  • the cutting disc 14 separates the interior of the can into a lower chamber 11 and an upper chamber 12 .
  • the cutting disk 14 is arched into the upper chamber 12 . Since the upper chamber 12 generally has a higher pressure than the lower chamber 11, the arching serves to increase the pressure resistance.
  • the cutting disk 14 In its edge region 41, the cutting disk 14 has a thickened portion into which a groove 42 is embedded. This groove 42 is used to accommodate the constriction 15, in order to increase the tightness between the upper chamber 12 and the lower chamber 11, a flat seal or an O-ring can be inserted (not shown).
  • the cut-off wheel 14 has a central opening which is generally circular. Along the opening there is a collar 43 which runs all the way around and is used on the one hand for reinforcement and stiffening in the area of the opening and on the other hand increases the contact surface for the plug 8 .
  • the plug 8 is fitted into the central opening and has a circumferential O-ring 81 which acts against the inner edge of the cutting disk 14 for sealing purposes.
  • the plug 8 itself has a central bore or receptacle 82 into which the end of the tappet 9 on the valve side protrudes.
  • the plunger 9 itself is with the Release pin 91 in contact, which is arranged substantially within the spring cage 16 and protrudes with its bottom end 92 from the ground.
  • a trigger 93 grips the bottom end 92 of the trigger pin 91 in such a way that when the can hits the bottom hard, the pin is pressed inwards, the force is transmitted to the plunger 9, which pushes the stopper 8 out of its holder in the opening of the cutting disc 14 solves.
  • the trigger 93 is designed as a button whose receptacle for the end 92 of the trigger pin 91 is dimensioned such that it limits the depression of the trigger pin 91 to a defined length.
  • the spring cage 16 itself is anchored in the base plate 6 , the base plate 6 being crimped to the can base 5 and the can base 5 being crimped to the frame 2 .
  • the spring basket 16 itself is in a possible variant in 3 shown.
  • FIG. 3 shows the bottom plate 6 together with the crimped-in spring cage 16, the spring element 17 arranged therein and the release pin 91 in detail.
  • the base plate 6 has a circumferential crimping projection 6a and, in the center, a formation 19 which is aligned with the outside of the can and within which the spring basket 16 is crimped.
  • the spring cage 16 has at its end on the valve side a membrane 24 and the inner circumferential projection 21 against which the helical spring 17 acts.
  • the membrane 24 is glued to the spring cage 16 .
  • an overcoat can also be stretched over the end of the spring cage 16 on the valve side.
  • the release pin 91 is arranged inside the spring cage 16 and the helical spring 17 , the valve-side end 29 of which is arranged directly below the membrane 24 .
  • the helical spring 17 is supported at its valve-side end on the projection 21 of the spring cage 16 and at its bottom end on the projection 22 of the release pin 91. Inside this projection is the seal 26, an O-ring which presses against the inner wall of the spring cage 16 works.
  • With the circumferential projection 23 of the release pin 91 acts against the bottom seal 20, which in turn to a inwardly projecting part of the bottom plate 6 is supported.
  • the bottom end 14 of the release pin 91 protrudes through the central opening of the base plate 6 and can be actuated from the outside, for example by the release 93.
  • Fig.4 shows the lower part of the pressure can according to the invention 2 after the closure element 8 has been blown off.
  • the plunger 9 and cover 8 are omitted from the illustration, the arrows denote the exit direction of the second component contained in the lower chamber 11 .
  • the lower chamber 11 is expediently filled with the second component to about 60 to 100% without pressure.
  • gas contained in the lower chamber 11 - usually air - rises into the upper chamber 12 and liquid flows from the upper chamber 12 into the lower chamber 11, also driven by the higher pressure prevailing there.
  • the mixing-promoting elements can be present, for example metal balls or rods.
  • the lid 8 released from its anchoring as well as the plunger 9, both not shown here, can move freely in the can space and contribute to the mixing of the two components when the can is shaken.
  • the release pin 91 in its release position (piston 9 not shown), ie it is out of the spring cage 16 - in comparison to the representation in 2 - pushed out. Accordingly, the release button 93 is pushed into the base of the can and abuts the upper edge of its receptacle 94 against the base plate 6. The base plate 6 limits the insertion of the release 93 into the base area of the pressure can.
  • FIG 5 shows a second variant of an opening device according to the invention in the area of the cutting disc 4.
  • the opening device has a threaded rod 9 which is guided through the floor into the lower chamber 11 and is completely screwed with its threaded part 95 into the receptacle 82 of the cover 8 .
  • the receptacle 82 is correspondingly provided with an internal thread.
  • the threaded rod 9 is within a recording of the spring cage 16 of 2 corresponds, rotatably mounted, but fixed in position. Sealing elements are provided to ensure tightness to the outside.
  • the separating disk 4 has a lug 44 in the area of the edge 43, which interacts with a corresponding notch in the cover 8 in the edge area. This prevents the cover 8 from rotating when the threaded rod 9 is turned, so that the rotary movement of the threaded rod 9 is converted into an upward movement of the cover 8, which is released from its anchorage in the cutting disc 4 and opens the opening into the upper chamber 12 .
  • closure element e.g. in the form of a membrane stretched over the opening of the separating disk 4, which is secured in its position by a retaining ring, one clamped in the opening Separating disc, which is pushed out of its anchorage by the pressure of the ram, a thin plastic plate molded integrally with the separating disc 4 in the region of the opening, which is blasted off by the ram or is torn along an annular weakened zone.
  • the spring basket 16 can be replaced by a rubber stopper, such as that described in US Pat WO 85/00157 A is described.
  • FIG. 6 shows a variant of the cutting disc 4 according to the invention with the collar 43 for fixing the plug (not shown).
  • the edge area of the blade 4 is designed asymmetrically, with a smaller upper branch 41 and a larger, reinforced lower branch 45, the load transfer improved.
  • the two branches 41 and 45 flank the circumferential groove 42 into which the neck 15 of the can body 2 engages.
  • the constriction 15 is stepped in such a way that it forms a support pointing in the direction of the upper chamber. In this area, the necking runs essentially perpendicularly to the can axis.
  • the underside of the upper branch 41 of the edge area of the cut-off wheel 4 is adapted to the stepped profile of the neck 15, as does the lower branch 45 with its contact side to the neck 15. This improves the seat of the cut-off wheel, which is particularly useful in the case of larger pressure differences between the chambers can be.
  • a ring inserted into the neck can be made of rubber, plastic or metal.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)

Claims (17)

  1. Récipient sous pression à deux composants comportant un corps (2), un dôme (3), une soupape (4) disposée dans le dôme (3), un fond (5) bombé vers l'intérieur et un dispositif d'ouverture disposé dans le fond (5) et pouvant être actionné depuis l'extérieur,
    caractérisé en ce que
    le corps de récipient (2) comprend un étranglement périphérique (15) auquel est fixée une plaque de séparation (14) divisant le récipient en une chambre inférieure (11) et une chambre supérieure (12), la plaque de séparation (14) comprenant une ouverture centrale qui est fermée à l'aide d'un élément de fermeture (8), et le dispositif d'ouverture pouvant être déplacé contre l'élément de fermeture (8) par le biais d'un déclencheur (93), afin de détacher l'élément de fermeture (8) de la plaque de séparation (14).
  2. Récipient sous pression selon la revendication 1, caractérisé en ce que la plaque de séparation (14) est bombée vers l'intérieur dans la chambre supérieure (12).
  3. Récipient sous pression selon la revendication 1 ou 2, caractérisé en ce que la plaque de séparation (14) comprend un rebord (43) limitant l'ouverture centrale.
  4. Récipient sous pression selon l'une des revendications précédentes, caractérisé en ce que l'ouverture centrale est réalisée de manière circulaire.
  5. Récipient sous pression selon l'une des revendications précédentes, caractérisé en ce que la plaque de séparation (14) comprend une rainure périphérique (42) qui coopère avec l'étranglement (15).
  6. Récipient sous pression selon l'une des revendications précédentes, caractérisé en ce que la plaque de séparation (14) est constituée d'une matière synthétique résistant à la pression, de préférence de polyoxyméthylène.
  7. Récipient sous pression selon l'une des revendications précédentes, caractérisé en ce que l'élément de fermeture (8) est réalisé sous forme de membrane, de bouchon ou de couvercle et est appliqué sur l'ouverture centrale dans la chambre supérieure (12).
  8. Récipient sous pression selon la revendication 7, caractérisé en ce que la membrane (8) est collée ou soudée sur la plaque de séparation (14) ou encore est formée d'un seul tenant avec la plaque de séparation (14).
  9. Récipient sous pression selon la revendication 8, caractérisé en ce que la membrane (8) est formée d'un seul tenant avec la plaque de séparation (14) et comprend des points destinés à la rupture.
  10. Récipient sous pression selon la revendication 7, caractérisé en ce que le bouchon (8) est emboîté de manière étanche dans l'ouverture centrale.
  11. Récipient sous pression selon la revendication 10, caractérisé en ce que le bouchon (8) comprend un joint torique (81) périphérique pour réaliser l'étanchéité.
  12. Récipient sous pression selon l'une des revendications précédentes, caractérisé en ce que le dispositif d'ouverture comprend un poinçon (9) qui agit contre l'élément de fermeture (8) lors du déclenchement du dispositif d'ouverture.
  13. Récipient sous pression selon la revendication 12, caractérisé en ce que le dispositif d'ouverture comprend une goupille de déclenchement (91) qui est montée sur ressort dans une cage ressort (16) disposée centralement dans le fond (5), peut être actionnée à l'aide du déclencheur (93) et est appropriée pour déplacer le poinçon (9) verticalement contre l'élément de fermeture (8) .
  14. Récipient sous pression selon l'une des revendications 1 à 11, caractérisé en ce que le dispositif d'ouverture comprend une tige filetée (9) qui est montée dans un filetage et passe à travers le fond (5) bombé vers l'intérieur.
  15. Récipient sous pression selon la revendication 14, caractérisé en ce qu'un bloc fileté est disposé dans le fond (5) du récipient sous pression.
  16. Récipient sous pression selon la revendication 14, caractérisé en ce que l'élément de fermeture (8) comprend un bloc fileté dans lequel la tige filetée (9) est vissée, de telle sorte que, lors de l'actionnement de la tige filetée (9), l'élément de fermeture (8) soit séparé de l'ouverture centrale de la plaque de séparation (14).
  17. Récipient sous pression selon la revendication 16, caractérisé en ce que l'élément de fermeture est un bouchon (8) qui est empêché de tourner dans l'ouverture centrale par un dispositif de verrouillage.
EP18811776.6A 2017-11-27 2018-11-27 Récipient sous pression à deux composants Active EP3717378B1 (fr)

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DE102017127915 2017-11-27
PCT/EP2018/082639 WO2019102026A1 (fr) 2017-11-27 2018-11-27 Récipient sous pression à deux composants

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EP3717378A1 EP3717378A1 (fr) 2020-10-07
EP3717378B1 true EP3717378B1 (fr) 2022-03-02

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EP (1) EP3717378B1 (fr)
JP (1) JP7295855B2 (fr)
KR (1) KR20200088333A (fr)
AU (1) AU2018373927B2 (fr)
WO (1) WO2019102026A1 (fr)

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US12006131B2 (en) * 2017-11-27 2024-06-11 Sika Technology Ag Two-component aerosol can

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DE3322811C2 (de) * 1983-06-24 1996-12-12 Miczka Silvia Behälter, insbesondere Druckdose zum Ausbringen von ein- oder mehrkomponentigen Substanzen
DE3526804A1 (de) * 1985-07-26 1987-01-29 Bramlage Gmbh Spender fuer pastoese massen
US5082146A (en) * 1988-05-03 1992-01-21 Swiss Aluminium Ltd. Container for mixing and ejection of two components contained therewithin
CH683515A5 (de) * 1990-10-26 1994-03-31 Ehrensperger C Ag Vorrichtung zum Ausbringen einer aus mindestens zwei Komponenten bestehenden Mischung.
DE59307082D1 (de) * 1993-11-25 1997-09-11 Rathor Ag Druckdose
BE1010074A6 (nl) * 1996-04-02 1997-12-02 Belgium Spray Accessory Factor Werkwijze en inrichting voor het genereren van druk in een spuitbus en dergelijke, en spuitbus die met zulke inrichting is uitgerust.
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DE10260117A1 (de) 2002-12-19 2004-07-01 Peter Kwasny Gmbh Druckdose zum Mischen und Ausbringen zweikomponentiger Werkstoffe
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JP2021504255A (ja) 2021-02-15
AU2018373927B2 (en) 2024-01-18
WO2019102026A1 (fr) 2019-05-31
EP3717378A1 (fr) 2020-10-07
AU2018373927A1 (en) 2020-05-21
KR20200088333A (ko) 2020-07-22
US11148872B2 (en) 2021-10-19
JP7295855B2 (ja) 2023-06-21
US20210002063A1 (en) 2021-01-07

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