EP3717377A1 - Zweikomponenten-druckdose - Google Patents
Zweikomponenten-druckdoseInfo
- Publication number
- EP3717377A1 EP3717377A1 EP18811775.8A EP18811775A EP3717377A1 EP 3717377 A1 EP3717377 A1 EP 3717377A1 EP 18811775 A EP18811775 A EP 18811775A EP 3717377 A1 EP3717377 A1 EP 3717377A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure cell
- piston
- opening
- cell according
- component
- 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.)
- Granted
Links
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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
- B65D81/3216—Rigid containers disposed one within the other
- B65D81/3222—Rigid containers disposed one within the other with additional means facilitating admixture
-
- 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
- B65D83/66—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated initially separated and subsequently mixed, e.g. in a dispensing head
- B65D83/666—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated initially separated and subsequently mixed, e.g. in a dispensing head with contents and the propellant being fully mixed on, or prior to, first use, e.g. by breaking an ampoule containing one of those components
-
- 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
- B65D83/68—Dispensing two or more contents
- B65D83/682—Dispensing two or more contents initially separated and subsequently mixed
- B65D83/687—Dispensing two or more contents initially separated and subsequently mixed with contents and the propellant being fully mixed on, or prior to, first use, e.g. by breaking an ampoule containing one of those components
Definitions
- the invention relates to a two-component pressure cell, with a frame, a dome, a valve arranged in the dome, a vaulted bottom, an upper and a lower chamber for a first and a second component, which are separated by a separating element, and one in Floor arranged and operable from the outside
- Opening device which passes through a passage in the bottom and, when actuated, cancels the separation between the chambers for the first and second components.
- the pressure cell is particularly suitable and determined for the storage and application of two-component systems, such as mounting foams with a hardener and / or filler component.
- the invention relates to the formation of pressure cans, which in addition to the substances of the main component take a second component, with the main component to the finished product, a
- Multicomponent system responds.
- Such systems are used in particular in the assembly and insulation technology, for example, when foaming door and window frames, the expansion of wall openings and gaps, in the sound and heat insulation, as well as in the production of foams by mineral additives fire retardant properties to get.
- two-component systems can be used for the production of two-component and two-component adhesives.
- the substances contained in the pressure vessel of the main component are liquid and comprise, in the case of a mounting foam, for example, a polyurethane prepolymer having terminal reactive isocyanate groups. Other common substances are usually present.
- the main component contains a liquid gas component which serves to expel and foam the contents of the can.
- the liquefied gas component also serves as a solvent.
- the second component contains, among other components, a crosslinker capable of reacting with the reactive isocyanate groups of the main component.
- a crosslinker capable of reacting with the reactive isocyanate groups of the main component.
- This is usually a substance with reactive hydrogen atoms, for example water or a polyol.
- the second component of a two-component pressure cell is kept in a separate sleeve, which is arranged at the bottom of the pressure cell and can be activated by a triggering mechanism through the ground.
- a triggering mechanism through the ground.
- the contents of the inner sleeve can be mixed with the contents of the can by shaking and the then already abreagierende product mixture are applied.
- WO 85/00157 A reference is made to WO 85/00157 A.
- the inner sleeves have proven to be very good, but have the disadvantage that the inner sleeve provides too little space for a voluminous second component.
- a second component for example, a fire-retardant contained in a carrier liquid to be mixed.
- fire retardants mostly mineral in nature, such as graphite or hydrated alumina, have been found to be incompatible with the prepolymer so that they can be added to the main component just prior to draining the siphon.
- the second component additionally contains a crosslinker and other customary additives. We are therefore looking for a two-component pressure cell that allows even larger amounts of a second component so accommodate that during storage time, the two components are strictly separated, but before the emptying of the pressure can be associated with each other and thoroughly mixed.
- separating element between the chambers is a piston displaceably mounted in the pressure cell, which has at least one opening closed with a closing element, and the opening device has an opening element that is suitable, to separate the closure element from the at least one opening of the piston.
- the two-component pressure cell according to the invention is intended primarily for the application of mounting foams with a hardener and / or filler component, wherein the filler component may be a fire retardant, such as graphite, but also a mineral additive to influence the foam properties.
- the filler component may be 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 which are stored in a pressure can and applied from a pressure cell under reaction.
- the distribution of the two components on the two chambers is arbitrary and can be made according to the requirements.
- the invention makes it possible to tailor the volumes of the upper and lower chambers to the needs of the particular application.
- almost any mixing ratios of the first to the second component of 10:90 to 90:10, by volume readily possible.
- the required adjustment of the pressure cell requires no major technical effort; only the length of the opening element has to be varied for this purpose.
- the pressure can has in a conventional manner a dome with an inserted valve, a frame and a fitted and vaulted in the frame bottom. In the bottom is centrally located an opening for the externally operable via a shutter opening device. Unlike conventional two-component Pressure cans, however, a vertically movable piston is arranged in the frame, which divides the pressure can space into a lower and an upper chamber.
- the piston which is movably fitted to divide the interior of the can into the frame, is sealingly adapted in its edge region to the frame wall.
- it has expediently on the wall side at least one flexible sealing lip.
- a preferred embodiment provides two dovetail-shaped sealing lips, which are guided in an expanded form on the frame wall.
- the upper and lower chambers delimiting sealing lips may be formed symmetrically or asymmetrically;
- the length of the lower chamber bounding sealing lip is particularly dimensioned so that it strikes the can bottom with completely empty aerosol can.
- the piston can also be made of metal, such as tinplate or aluminum.
- the seal to the inner wall of the can can be done here for example via a sealing ring or the sealing lip system described above.
- the sealant is adhered to, for example, the outer bulb wall.
- pressure cans that have a weld to provide inside a paint layer that compensates for unevenness caused by the weld and thus causes a better sealing with the piston.
- the piston of the pressure cell can be guided with its wall on the inner Zargenwand, wherein for the production of the tightness
- one or more O-rings are provided. These O-rings are expediently arranged in recesses which run in a ring around the outer wall of the piston.
- the piston serves as a separating element between the chambers for the first and the second component.
- it has at least one opening closed with a closure element, expediently arranged centrally in the center of the piston or, in the case of several openings, around the center of the piston.
- the closure element for the opening can be opened via the externally operable opening device before use of the can, wherein the opening device separates the closure element from the piston and thus releases the passage between the two chambers.
- the mixing of the two components in the chambers can in principle be brought about by shaking the can, which is usually about 75% full.
- an opening device which is suitable not only to separate the closure element from the piston, but at the same time can also move the piston to the bottom of the can and thus brings about a forced mixing of the chamber contents.
- the opening device is arranged at the bottom of the pressure cell and can be actuated from the outside through the bottom.
- the closure element is expediently a membrane, a lid or a stopper, preferably a stopper, which is fitted into the at least one opening from the underside of the piston.
- the closure element is a plug, which is from below, ie from the lower chamber ago, in the at least one opening is fitted and can be pulled out.
- the opening element of the opening device may be, for example, a pull rod, a drawstring, a pull rope or a pull wire.
- a pull wire which is guided through the bottom of the can and can be actuated from the outside.
- the puller wire and tie rod both serve to separate the closure member from the piston and to move the piston downwardly toward the can bottom.
- the opening mechanism needs two stages. In a first stage, the closure element is released from the piston and thus released the passage between the chambers. In the second stage, the piston is pulled down by means of the orifice member, toward the can bottom, causing the contents of the lower chamber to flow into the upper chamber and mix there with the contents of the upper chamber.
- the opening element protrudes through the bottom of the pressure box to the outside and can be operated from the outside.
- the opening element is a pull wire, which is equipped in the terminal area with two drivers.
- the puller wire passes through the bottom into the lower chamber and through the closure element into the upper chamber.
- the first driver is located in the upper chamber in the end region of the puller wire, the second driver spaced to below the piston roof, but above the arranged under the piston stopper.
- the plug is first pulled out of the openings via the lower driver so that the connection to the upper chamber is released and then the piston is pulled downwards, towards the bottom, which unites the contents of the two chambers.
- a pull rod can be designed accordingly.
- the opening device is located in the bottom region of the pressure cell and comprises, in addition to the opening element, in particular a sleeve for the Opening element which is anchored in a bottom plate in the vaulted bottom of the pressure cell and has the necessary sealing elements for the passage of the opening element through the bottom.
- the opening element expediently has a handle outside of the pressure box, which activates the pressure box on train. The handle can be readily arranged in the vaulted bottom of the pressure cell.
- the piston arranged in the pressure cell preferably has a cup shape which is adapted to the dimension of the opening device arranged on the bottom of the can. In this way, the contents of the pressure cell located in the lower chamber can be almost completely mixed with the contents of the upper chamber. At the same time, damage to the bottom of the can arranged opening mechanism is excluded in the critical activation phase.
- Figure 1 shows the lower part of a pressure cell according to the invention prior to activation.
- Fig. 1 shows a longitudinal section of the lower part of a pressure cell according to the invention with the piston and the opening device.
- the upper part not shown, has a conventional construction and largely corresponds to the upper part of the pressure box described in WO 85/00175 A.
- the pressure cell according to the invention differs in that the second component is not housed in an inner sleeve on the bottom of the can, but in a second chamber below the piston movably arranged.
- the inventive two-component pressure cell 1 consists of a frame 2, a dome, not shown, a valve arranged in the dome, also not shown, a vaulted bottom 3 and an externally operable by the bottom opening device 4.
- the opening device 4 consists of a pull wire. 5 , a crimped in a bottom plate 6 Passage element 7, a handle 8, which is arranged below the bottom 3 and is located outside the pressure cell 1, and two drivers 9 and 10, which are in the upper region (valve-side region) of the puller wire 5. These drivers 9 and 10 are firmly connected to the pull wire 5.
- the piston 11 Inside the pressure cell 1 is the piston 11, which divides the interior of the pressure cell 1 into a lower chamber 12 and an upper chamber 13.
- the outer edge of the piston 11 is formed by 2 sealing elements 14a and 14b, which bear tightly against the inside of the can body 2.
- the sealing lips 14a and 14b are spread like dovetails and are sealingly supported on the inner wall of the can body 2 from.
- the piston 11 itself consists in its central part of a cup-shaped structure 15 with a roof 16 and laterally extending edge or collar 17, which ends in the sealing lips 14a and 14b. Within the roof 16 openings or apertures 18 are arranged, two of which are shown. Others may extend concentrically around the center of the piston.
- the openings 18 are closed by a stop 19 projecting from below into the piston 11 and having a plurality of pins 20.
- a pin 20 is provided for each opening 18, a pin 20 is provided. These pins 20 are sealingly fitted into the openings 18, so that a passage of the first component contained in the upper chamber 13 is excluded in the lower chamber 12 and the second component contained in the lower chamber 12 into the upper chamber 13.
- the puller wire 5 is guided on the one hand by the lid 19 and on the other by the roof 16 of the piston 11. In each case, the passage through the roof 16 is designed to be sealed, so that an exchange of components contained in the two chambers does not take place here can. As far as the components contained in the chambers are reactive with each other, a seal is brought about by contact of the components in the field of implementation through the roof 16 anyway.
- the puller wire 5 has the drivers 9 and 10 at a distance from each other, wherein the upper driver 9 is in the upper chamber 13 and the lower driver 10 in the lower chamber 12, but above the plug 19 in a recess.
- the distance between the dogs 9 and 10 is such that upon release of the pressure box on the pull wire, the cover 19 is first withdrawn from the openings 18, so that the path between the two chambers 12 and 13 is free. Only in a second stage, with the pull wire 5 further pulled out, the piston 11 is moved in the direction of the bottom of the can 3. This reduces the volume of the lower chamber 12 in favor of the upper chamber 13, which forces the contents of the lower chamber 12 into the upper chamber 13.
- the plurality of openings 18 causes a good distribution and mixing of the second component contained in the lower chamber 12 in the upper chamber thirteenth
- the cup-shaped design of the piston 11 carries the shape of the arranged in the bottom of the can 3 passage 7 of the opening device 4 bill. This ensures a substantial emptying of the lower component into the upper chamber 13.
- the passage 7 of the opening device 4 is crimped into a base plate 6, which in turn is crimped to the bottom 3 of the pressure cell 1. It is understood that the passage includes at least one sealing element 21, which prevents the escape of liquid from the lower chamber 12 to the outside.
- This sealing element can be in the form of a rubber stopper 21, for example, which has a central bore and closely surrounds the puller wire 5.
- Valve side, the passage 7 on a spring element 22 which is to catch the pulled down lid / piston spring after release of the pressure cell.
- the frame 2 of the box 1 may be made of aluminum and in this case has no seam. In that case there is no sealing problem between the piston and the frame. In the case of welded cans, however, unevenness may occur in the region of the weld seam, which is why, in this case, an internally known interior painting of the can can be useful.
- the pressure cell according to the invention can be stored in the non-activated state for a long time, because the two components in the chambers 12 and 13 are hermetically enclosed therein. Only by triggering the pressure cell is activated. For this purpose, the pull wire 5 is pulled down by means of the handle 8, which in a first stage releases the plug 19 and in a second stage moves the piston 11 via the catch 9 to the bottom 3 of the can 1.
- Fig. 2 shows the pressure cell 1 according to FIG. 1 after the triggering.
- the piston 11 has been pulled by means of the guide wire 5 and the driver 9 in the direction of the bottom of the can 3 and is in its lowest bottom position.
- the driver 9 is located directly on the piston roof 16.
- the lower chamber 12 is reduced to a residual volume in the region of the piston cup 15, the contents of the lower chamber 12 flows (arrows) in the upper chamber 13.
- the lid 19 is separated from the piston roof 16 and has the openings 18 released.
- the sealing lips 14a and 14b are also in their lowest bottom-side position; However, they have no function at this time.
- the lower sealing lip 14b with its stop at the lower end of the frame 2 on the bottom of the can 3 ensures that the piston cup 15 does not affect the opening device.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
- Package Specialized In Special Use (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017127911 | 2017-11-27 | ||
| PCT/EP2018/082638 WO2019102025A1 (de) | 2017-11-27 | 2018-11-27 | Zweikomponenten-druckdose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3717377A1 true EP3717377A1 (de) | 2020-10-07 |
| EP3717377B1 EP3717377B1 (de) | 2022-02-23 |
Family
ID=64564860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18811775.8A Active EP3717377B1 (de) | 2017-11-27 | 2018-11-27 | Zweikomponenten-druckdose |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11161674B2 (de) |
| EP (1) | EP3717377B1 (de) |
| JP (1) | JP7290641B2 (de) |
| KR (1) | KR102747851B1 (de) |
| AU (1) | AU2018373926B2 (de) |
| WO (1) | WO2019102025A1 (de) |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3195778A (en) * | 1963-09-17 | 1965-07-20 | Alta Engineering Company | Storage and mixing cartridge |
| US3437242A (en) * | 1966-11-21 | 1969-04-08 | Edward J Poitras | Fluid storing,mixing and dispensing apparatus |
| US3727797A (en) * | 1971-09-07 | 1973-04-17 | P Cronan | Dual compartment spray container |
| AU536267B2 (en) * | 1978-03-01 | 1984-05-03 | Henri-Hean-Joseph Schumacker | Aerosol dispenser |
| DE3322811C2 (de) * | 1983-06-24 | 1996-12-12 | Miczka Silvia | Behälter, insbesondere Druckdose zum Ausbringen von ein- oder mehrkomponentigen Substanzen |
| JPS60501660A (ja) | 1983-06-27 | 1985-10-03 | ホステツトラ−,フリツツ | プレポリマ−と流動調整剤との低温貯蔵安定性混合物 |
| DE3526804A1 (de) * | 1985-07-26 | 1987-01-29 | Bramlage Gmbh | Spender fuer pastoese massen |
| EP0370084B1 (de) * | 1988-05-03 | 1992-08-26 | Alusuisse-Lonza Services AG | Behälter zum mischen und entnehmen von zwei darin enthaltenen komponenten |
| 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. |
| DE19882505D2 (de) * | 1998-06-03 | 2001-06-21 | Ebb Ingenieurgmbh | Wiederholt Nachfüllbare Spraydose, Einrichtung zum Befüllen derartiger Dosen und Verfahren zum Herstellen derartiger Dosen |
| US7455195B2 (en) * | 2002-06-26 | 2008-11-25 | Daizo Co., Ltd. | Container for discharging plural contents, a dispenser using the container, and a process for producing the dispenser |
| DE102004024777A1 (de) * | 2004-05-17 | 2005-12-15 | Fazekas, Gàbor | Druckdose mit Innenhülse |
| DE202007004662U1 (de) * | 2007-03-28 | 2008-08-07 | Geiberger, Christoph | Mehrkammerbehälter |
| JP2009184731A (ja) * | 2008-01-11 | 2009-08-20 | Pentel Corp | 液収容容器 |
| US8025168B2 (en) * | 2008-06-05 | 2011-09-27 | Brian L. Bullard | Apparatus and method for the separate storage and mixing of substances |
| KR101386707B1 (ko) * | 2012-11-26 | 2014-04-18 | 쓰리애플즈코스메틱스 주식회사 | 혼합형 화장품 용기 |
| WO2017064621A1 (en) * | 2015-10-13 | 2017-04-20 | Airopack Technology Group Ag | Fluid dispenser |
-
2018
- 2018-11-27 US US16/767,281 patent/US11161674B2/en active Active
- 2018-11-27 EP EP18811775.8A patent/EP3717377B1/de active Active
- 2018-11-27 WO PCT/EP2018/082638 patent/WO2019102025A1/de not_active Ceased
- 2018-11-27 JP JP2020528891A patent/JP7290641B2/ja active Active
- 2018-11-27 AU AU2018373926A patent/AU2018373926B2/en active Active
- 2018-11-27 KR KR1020207014370A patent/KR102747851B1/ko active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021504256A (ja) | 2021-02-15 |
| EP3717377B1 (de) | 2022-02-23 |
| US20210114792A1 (en) | 2021-04-22 |
| KR102747851B1 (ko) | 2024-12-27 |
| US11161674B2 (en) | 2021-11-02 |
| AU2018373926B2 (en) | 2024-03-14 |
| WO2019102025A1 (de) | 2019-05-31 |
| JP7290641B2 (ja) | 2023-06-13 |
| AU2018373926A1 (en) | 2020-05-21 |
| KR20200088334A (ko) | 2020-07-22 |
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