ES2341398T3 - PRESSURE PACKAGING BAG. - Google Patents

PRESSURE PACKAGING BAG. Download PDF

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Publication number
ES2341398T3
ES2341398T3 ES08717045T ES08717045T ES2341398T3 ES 2341398 T3 ES2341398 T3 ES 2341398T3 ES 08717045 T ES08717045 T ES 08717045T ES 08717045 T ES08717045 T ES 08717045T ES 2341398 T3 ES2341398 T3 ES 2341398T3
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Prior art keywords
bag
wall
tubular wall
weld
welding
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ES08717045T
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Spanish (es)
Inventor
Herve Bodet
Hans Peter Lilienthal
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Lindal France SAS
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Lindal France SAS
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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
    • B65D83/60—Contents and propellant separated
    • B65D83/62—Contents and propellant separated by membrane, bag, or the like

Landscapes

  • 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)
  • Tubes (AREA)
  • Manipulator (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Packages (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Formation And Processing Of Food Products (AREA)

Abstract

The liner (1) has a tubular wall (2) comprising an upper end (22) closed by a weld, and a valve (4) integrated in the upper end. The tubular wall is obtained by overlapping and welding two lateral edges of a band. An upper part of a lateral weld is located at one of ends of the upper end of the wall. A round base wall (3) is fixed on an internal surface of the tubular wall and closes a lower end (21) of the wall.

Description

Bolsa para envase a presión.Bag for pressure packaging.

La invención se refiere a una bolsa para envase a presión según el preámbulo de la reivindicación principal.The invention relates to a container bag under pressure according to the preamble of the main claim.

Este tipo de bolsas se utilizan habitualmente en pulverizadores cosméticos, alimentarios y productos técnicos. Permiten separar el producto que va a aplicarse del gas propulsor contenido en el envase.These types of bags are commonly used in cosmetic sprayers, food and technical products. They allow to separate the product to be applied from the propellant gas Container content

Están constituidas generalmente por dos paredes soldadas entre sí mediante cuatro soldaduras, estando una válvula integrada en la soldadura superior para permitir la extracción del contenido de la bolsa.They are generally made up of two walls welded together by four welds, a valve being integrated in the upper weld to allow the extraction of bag contents.

Una vez llenas, estas bolsas presentan por tanto un corte transversal oval o elíptico. Las dos soldaduras laterales forman, cada una, un borde sobresaliente que exige aumentar el tamaño del envase para dejarles sitio. Asimismo, el fondo de la bolsa también está aplanado y se aleja sensiblemente de la pared del envase. En otras palabras, el espacio muerto en el interior del envase debido a la geometría de la bolsa es importante.Once filled, these bags present therefore an oval or elliptical cross section. The two side welds they form, each one, an outstanding edge that demands to increase the container size to leave room. Also, the bottom of the The bag is also flattened and moves significantly away from the wall of the container. In other words, the dead space inside the Packaging due to the geometry of the bag is important.

Se conoce por el documento FR 2 853 633 A1 una bolsa para envase no a presión cuya parte central cilíndrica se forma enrollando una película estratificada rectangular y pegando entre sí los lados opuestos. Esta bolsa está cerrada en la parte inferior mediante una placa gruesa a la que está unida mediante soldadura. La parte superior de las bolsas está soldada a un collar circular en el que puede encajarse un dispositivo de bombeo. Durante la extracción del producto, se forma una presión negativa en la bolsa, que se contrae. No obstante, la placa de fondo impide una contracción completa de la bolsa debido a su rigidez. Además, no es posible, también debido a esta placa de fondo gruesa, aunque también al collar superior, enrollar la bolsa sobre sí misma a lo largo de su eje longitudinal, por ejemplo para facilitar su introducción en un envase que presenta un cuello de introducción más pequeño o para reducir el volumen de almacenamiento antes del montaje.It is known from document FR 2 853 633 A1 a non-pressure container bag whose cylindrical central part is shape by rolling a rectangular stratified film and pasting each other opposite sides. This bag is closed in the part bottom by a thick plate to which it is attached by welding. The top of the bags is welded to a collar circular in which a pumping device can be fitted. During product extraction, a negative pressure is formed in the bag, which contracts. However, the bottom plate prevents a complete contraction of the bag due to its rigidity. In addition, it is not possible, also due to this thick bottom plate, although also to the top collar, roll the bag over itself along its longitudinal axis, for example to facilitate its introduction in a container that has an introduction collar smaller or to reduce storage volume before mounting.

El objetivo de la invención es, por tanto, por una parte, reducir el número de soldaduras necesarias para la fabricación de la bolsa y, por otra parte, reducir el espacio muerto en el interior del envase para aumentar el coeficiente de llenado al tiempo que se mantiene una bolsa suficientemente flexible para poder enrollarse sobre sí misma para facilitar su introducción en un envase.The object of the invention is therefore by one part, reduce the number of welds necessary for the bag manufacturing and, on the other hand, reduce dead space inside the container to increase the filling coefficient while maintaining a sufficiently flexible bag to be able to roll on itself to facilitate its introduction into a container.

Este objetivo se consigue según la invención debido a que la pared tubular se obtiene solapando y soldando los dos bordes laterales de una banda. Así, la pared tubular de la bolsa tendrá una sección transversal casi circular en una gran parte de su altura. Por otro lado, se evitan los bordes sobresalientes de las bolsas del estado de la técnica. Además, sólo hay una soldadura longitudinal, cuando hacían falta dos con las bolsas conocidas de la técnica anterior.This objective is achieved according to the invention. because the tubular wall is obtained by overlapping and welding the Two side edges of a band. Thus, the tubular wall of the bag it will have an almost circular cross section in a large part of His height. On the other hand, the protruding edges of the state of the art bags. In addition, there is only one weld longitudinal, when two were needed with the known bags of prior art

Es preferible que la parte superior de la soldadura lateral esté situada en uno de los extremos de la soldadura superior de la pared tubular.It is preferable that the top of the side welding is located at one end of the upper weld of the tubular wall.

En un primer modo de realización de la invención, la pared tubular está cerrada en su parte inferior mediante soldadura en plano del borde inferior de la pared, preferiblemente en el mismo plano que la soldadura superior que integra la válvula. Este primer modo de realización es particularmente sencillo de realizar. La sección transversal de la bolsa es casi circular a mitad de altura de la bolsa, tendiendo esta sección a volverse elíptica a medida que se aproxima a los extremos superior e inferior en los que es totalmente plana. La bolsa ocupa al menos en su parte central una gran parte del espacio del envase, reduciendo considerablemente el espacio muerto en esta parte.In a first embodiment of the invention, the tubular wall is closed at its bottom by flat welding of the bottom edge of the wall, preferably in the same plane as the upper weld that Integrate the valve. This first embodiment is particularly easy to perform. The cross section of the bag is almost circular halfway up the bag, tending this section to become elliptical as you approach the extremes upper and lower in which it is completely flat. The bag occupies at least in its central part a large part of the container space, considerably reducing the dead space in this part.

En un segundo modo de realización, la pared tubular está cerrada en su parte inferior mediante una pared de fondo esencialmente redonda. Así, la sección transversal circular se extiende hasta la parte inferior de la bolsa, tendiendo a volverse elíptica a medida que se aproxima al extremo superior en el que es totalmente plana. La bolsa ocupa, al menos en una gran parte inferior, prácticamente todo el espacio del envase, reduciendo considerablemente el espacio muerto en esta parte.In a second embodiment, the wall tubular is closed at its bottom by a wall of essentially round bottom. Thus, the circular cross section is extends to the bottom of the bag, tending to turn elliptical as it approaches the upper end where it is totally flat The stock market occupies, at least in a large part bottom, virtually all container space, reducing considerably dead space in this part.

Con el fin de permitir un enrollado de la bolsa sobre sí misma a lo largo del eje longitudinal de la pared tubular, es preferible realizar la pared de fondo de un material flexible, preferiblemente del mismo material que el utilizado para la pared tubular. Al elegir el mismo material, se facilita la gestión de la fabricación y se evitan problemas de incompatibilidad de soldadura. De este modo es posible reducir el volumen de almacenamiento de las bolsas antes de su introducción en los envases a presión y facilitar su introducción en estos envases cuando el cuello de los envases es relativamente estrecho.In order to allow a roll of the bag on itself along the longitudinal axis of the tubular wall, it is preferable to make the bottom wall of a flexible material, preferably of the same material as that used for the wall tubular. By choosing the same material, the management of the manufacturing and welding incompatibility problems are avoided. In this way it is possible to reduce the storage volume of the bags before introduction into the pressure packaging and facilitate its introduction in these containers when the neck of the containers is relatively narrow.

Es preferible en este caso que la pared de fondo sea esencialmente plana y perpendicular al eje longitudinal de la bolsa. Ésta es la solución más sencilla de realizar. La pared de fondo está fijada preferiblemente a la cara interna de la pared tubular, concretamente con ayuda de un borde doblado.It is preferable in this case that the back wall is essentially flat and perpendicular to the longitudinal axis of the bag. This is the easiest solution to perform. The wall of bottom is preferably fixed to the inner face of the wall tubular, specifically with the help of a folded edge.

Según la invención, es preferible que la pared tubular esté constituida por una película metaloplástica, preferiblemente de aluminio asociado con polipropileno, polietileno de alta o baja densidad, EVOH (alcohol etilenvinílico) y/u Orgaloy® (mezcla de poliamida y polipropileno).According to the invention, it is preferable that the wall Tubular is constituted by a metalloplastic film, preferably of aluminum associated with polypropylene, polyethylene high or low density, EVOH (ethylene vinyl alcohol) and / or Orgaloy® (mixture of polyamide and polypropylene).

La invención se describe más detalladamente a continuación con ayuda de las figuras, que muestran:The invention is described in more detail at then with the help of the figures, which show:

la figura 1: una vista en perspectiva de un primer ejemplo de realización de una bolsa según la invención;Figure 1: a perspective view of a first embodiment of a bag according to the invention;

la figura 2: una vista frontal de la bolsa de la figura 1;Figure 2: a front view of the bag of the Figure 1;

la figura 3: una vista en corte según la línea A-A de la figura 2;Figure 3: a sectional view according to the line A-A of Figure 2;

la figura 4: una vista lateral de la bolsa de la figura 1;Figure 4: a side view of the bag of the Figure 1;

la figura 5: una vista en perspectiva de un segundo ejemplo de realización de una bolsa según la invención;Figure 5: A perspective view of a second embodiment of a bag according to the invention;

la figura 6: una vista frontal de la bolsa de la figura 5;Figure 6: a front view of the bag of the figure 5;

la figura 7: una vista en corte según la línea A-A de la figura 6;Figure 7: a sectional view according to the line A-A of Figure 6;

la figura 8: una vista lateral de la bolsa de la figura 5;Figure 8: a side view of the bag of the figure 5;

la figura 9: un corte parcial del fondo de la bolsa de la figura 5.Figure 9: a partial section of the bottom of the bag of figure 5. 

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En los dos modos de realización, la bolsa (1, 101) de la invención está constituida por una pared (2, 102) tubular. Esta pared tubular se obtiene soldando los dos bordes laterales de una banda, solapándose ambos bordes. La soldadura (23, 123) longitudinal se realiza por tanto aplicando la cara interior de uno de los bordes sobre la cara exterior del otro borde de la banda. Esta soldadura está por tanto en la prolongación de la pared tubular sin sobresalir como es el caso en el estado de la técnica en el que los dos bordes se sueldan disponiendo enfrentadas las caras interiores de los bordes de la banda.In both embodiments, the bag (1, 101) of the invention is constituted by a wall (2, 102) tubular. This tubular wall is obtained by welding the two edges sides of a band, overlapping both edges. Welding (23, 123) longitudinal is therefore performed by applying the inner face of one of the edges on the outer face of the other edge of the band. This welding is therefore in the extension of the wall tubular without protruding as is the case in the state of the art in that the two edges are welded, facing each other's faces inside the edges of the band.

La pared (2, 102) tubular está constituida por una banda cerrada sobre sí misma, por ejemplo mediante una soldadura, de manera que se obtiene una sección transversal circular sin borde sobresaliente.The tubular wall (2, 102) is constituted by a closed band on itself, for example by a welding, so that a circular cross section is obtained No protruding edge.

El extremo (22, 122) superior se cierra aplanando la pared tubular para soldarla sobre sí misma. Una válvula (4, 104) de aerosol, conocida en sí misma, se sitúa en el centro de esta soldadura (22, 122) para permitir la extracción del producto contenido en la bolsa (1, 101).The upper end (22, 122) closes flattening the tubular wall to weld on itself. One valve  (4, 104) aerosol, known in itself, is located in the center of this welding (22, 122) to allow the extraction of the product contained in the bag (1, 101).

Se elegirá, por ejemplo, como material una película metaloplástica tal como de aluminio asociado con polipropileno, polietileno de alta o baja densidad, EVOH (alcohol etilenvinílico), Orgaloy® (mezcla de poliamida y polipropileno).For example, a material will be chosen as metalloplastic film such as aluminum associated with polypropylene, high or low density polyethylene, EVOH (alcohol ethylene vinyl), Orgaloy® (mixture of polyamide and polypropylene).

Esta bolsa está destinada a introducirse en un envase distribuidor. La válvula sirve para extraer el contenido de la bolsa. Un gas u otro propulsor contenido en el recipiente, en el exterior de la bolsa, sirve para propulsar este contenido a través de la válvula cuando ésta se acciona.This bag is intended to be introduced in a distributor container The valve serves to extract the contents of the bag. A gas or other propellant contained in the container, in the outside of the bag, it serves to propel this content through of the valve when it is operated.

En el primer modo de realización de la invención, la pared (102) tubular se cierra en su extremo (121) inferior soldando en plano el borde (121) inferior de la pared. La soldadura (122) superior y la soldadura (121) inferior están preferiblemente en el mismo plano, aunque esto no es obligatorio. La soldadura (123) longitudinal está situada, preferiblemente, en uno de los extremos de las soldaduras (121) inferior y (122) superior.In the first embodiment of the invention, the tubular wall (102) closes at its end (121) bottom by flat welding the bottom edge (121) of the wall. The upper weld (122) and lower weld (121) are preferably on the same plane, although this is not mandatory. The longitudinal welding (123) is preferably located in one of the weld ends (121) lower and (122) higher.

En el segundo modo de realización, la pared (2) tubular está cerrada en su extremo (21) inferior mediante una pared (3) de fondo sensiblemente redonda realizada de un material flexible, preferiblemente el mismo material que el utilizado para la pared tubular.In the second embodiment, the wall (2) tubular is closed at its lower end (21) by a wall (3) substantially round bottom made of a material flexible, preferably the same material as used for the tubular wall

La pared (3) de fondo está fijada, por ejemplo mediante soldadura, al extremo (21) inferior de la bolsa (2). Esta pared (3) de fondo es esencialmente plana y se extiende en el plano perpendicular al eje longitudinal de la bolsa (1). Podrá soldarse, por ejemplo, doblando hacia abajo el contorno de la pared (3) de fondo de modo que se forma un borde (31) sobresaliente paralelo al eje longitudinal de la bolsa, tal como se muestra en la figura 9.The bottom wall (3) is fixed, for example by welding, to the lower end (21) of the bag (2). This bottom wall (3) is essentially flat and extends in the plane perpendicular to the longitudinal axis of the bag (1). It can be welded, for example, by bending down the contour of the wall (3) of bottom so that a protruding edge (31) is formed parallel to the longitudinal axis of the bag, as shown in the figure 9.

El interés de esta bolsa, ya sea en el primer modo de realización o en el segundo, es que sólo necesita tres soldaduras en lugar de cuatro en las bolsas del estado de la técnica. Además, la forma de la bolsa es esencialmente cilíndrica en una parte importante de su altura y no oval o elíptica como en el estado de la técnica. Además, la ausencia de soldaduras longitudinales en plano por toda la altura de la bolsa permite reducir eficazmente el espacio muerto en el envase. Esto permite un mejor coeficiente de llenado. En efecto, la pared tubular es en gran parte cilíndrica y por tanto se alinea mejor con la pared del recipiente en el que debe introducirse.The interest of this bag, either in the first mode of realization or in the second, is that you only need three welds instead of four in the state bags of the technique. In addition, the shape of the bag is essentially cylindrical in an important part of its height and not oval or elliptical as in the state of the art In addition, the absence of welds Longitudinal flat by the entire height of the bag allows effectively reduce dead space in the container. This allows a Better filling coefficient. In effect, the tubular wall is in large cylindrical part and therefore aligns better with the wall of the container in which it should be introduced. 

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Lista de referenciasReference List

101101
BolsaBag

102102
Pared tubularTubular wall

121121
Extremo inferiorLower end

122122
Extremo superiorUpper end

123123
Soldadura lateralLateral welding

104104
VálvulaValve 

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1one
BolsaBag

22
Pared tubularTubular wall

21twenty-one
Extremo inferiorLower end

2222
Extremo superiorUpper end

232. 3
Soldadura lateralLateral welding

33
Pared de fondoBackground wall

3131
Borde dobladoFolded edge

44
VálvulaValve

Claims (10)

1. Bolsa (1, 101) para envase a presión compuesta por una pared (2, 102) tubular flexible cerrada en su parte (22, 122) superior aplanando la pared tubular para soldarla sobre sí misma, estando integrada una válvula (4, 104) de aerosol en la soldadura, caracterizada porque la pared (2, 102) tubular se obtiene solapando y soldando (23, 123) los dos bordes laterales de una banda.1. Bag (1, 101) for pressurized container composed of a flexible tubular wall (2, 102) closed in its upper part (22, 122) by flattening the tubular wall to weld on itself, a valve (4, 104) of welding spray, characterized in that the tubular wall (2, 102) is obtained by overlapping and welding (23, 123) the two lateral edges of a band. 2. Bolsa (1, 101) según la reivindicación 1, caracterizada porque la parte superior de la soldadura (23, 123) lateral se sitúa en uno de los extremos de la soldadura (22, 122) superior de la pared tubular.2. Bag (1, 101) according to claim 1, characterized in that the upper part of the side weld (23, 123) is located at one of the ends of the upper weld (22, 122) of the tubular wall. 3. Bolsa (101) según la reivindicación 1 ó 2, caracterizada porque la pared (102) tubular está cerrada en su parte (121) inferior mediante soldadura en plano de su borde inferior.3. Bag (101) according to claim 1 or 2, characterized in that the tubular wall (102) is closed in its lower part (121) by plane welding of its lower edge. 4. Bolsa (101) según la reivindicación 3, caracterizada porque la soldadura (121) inferior y la soldadura (122) superior están sensiblemente en un mismo plano.4. Bag (101) according to claim 3, characterized in that the lower weld (121) and the upper weld (122) are substantially in the same plane. 5. Bolsa (1) según la reivindicación 1 ó 2, caracterizada porque la pared (2) tubular está cerrada en su parte (21) inferior mediante una pared (3) de fondo esencialmente redonda.5. Bag (1) according to claim 1 or 2, characterized in that the tubular wall (2) is closed in its lower part (21) by means of an essentially round bottom wall (3). 6. Bolsa (1) según la reivindicación 5, caracterizada porque la pared (3) de fondo está realizada de un material flexible, preferiblemente del mismo material que el utilizado para la pared (2) tubular.6. Bag (1) according to claim 5, characterized in that the bottom wall (3) is made of a flexible material, preferably of the same material as that used for the tubular wall (2). 7. Bolsa (1) según la reivindicación 5 ó 6, caracterizada porque la pared (3) de fondo es esencialmente plana y perpendicular al eje longitudinal de la bolsa (1).7. Bag (1) according to claim 5 or 6, characterized in that the bottom wall (3) is essentially flat and perpendicular to the longitudinal axis of the bag (1). 8. Bolsa (1) según una de las reivindicaciones 5, 6 ó 7, caracterizada porque la pared (3) de fondo está fijada a la cara interna de la pared (2) tubular.8. Bag (1) according to one of claims 5, 6 or 7, characterized in that the bottom wall (3) is fixed to the inner face of the tubular wall (2). 9. Bolsa (1) según la reivindicación anterior, caracterizada porque la pared (3) de fondo está fijada a la pared tubular mediante un borde (31) doblado.9. Bag (1) according to the preceding claim, characterized in that the bottom wall (3) is fixed to the tubular wall by a folded edge (31). 10. Bolsa (1) según una de las reivindicaciones anteriores, caracterizada porque la pared (2) tubular está constituida por una película metaloplástica, preferiblemente de aluminio asociado con polipropileno, polietileno de alta o baja densidad, EVOH (alcohol etilenvinílico) y/u Orgaloy® (mezcla de poliamida y polipropileno).10. Bag (1) according to one of the preceding claims, characterized in that the tubular wall (2) is constituted by a metalloplastic film, preferably of aluminum associated with polypropylene, high or low density polyethylene, EVOH (ethylene vinyl alcohol) and / or Orgaloy® (mixture of polyamide and polypropylene).
ES08717045T 2007-02-23 2008-02-22 PRESSURE PACKAGING BAG. Active ES2341398T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0701298A FR2912999B1 (en) 2007-02-23 2007-02-23 POCKET FOR PRESSURIZED BOTTLE
FR0701298 2007-02-23

Publications (1)

Publication Number Publication Date
ES2341398T3 true ES2341398T3 (en) 2010-06-18

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ES08717045T Active ES2341398T3 (en) 2007-02-23 2008-02-22 PRESSURE PACKAGING BAG.

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US (1) US20100176153A1 (en)
EP (1) EP2125569B1 (en)
JP (1) JP2010519144A (en)
CN (1) CN101600632B (en)
AT (1) ATE463444T1 (en)
AU (1) AU2008223993A1 (en)
BR (1) BRPI0807503A2 (en)
CA (1) CA2678629A1 (en)
DE (1) DE602008000982D1 (en)
DK (1) DK2125569T3 (en)
ES (1) ES2341398T3 (en)
FR (1) FR2912999B1 (en)
HK (1) HK1137709A1 (en)
IL (1) IL199669A0 (en)
MX (1) MX2009007553A (en)
PL (1) PL2125569T3 (en)
PT (1) PT2125569E (en)
RU (1) RU2009135387A (en)
WO (1) WO2008107319A1 (en)
ZA (1) ZA200904733B (en)

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WO2014063146A1 (en) * 2012-10-19 2014-04-24 Rust-Oleum Corporation Propellantless aerosol system

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WO2008107319A1 (en) 2008-09-12
EP2125569A1 (en) 2009-12-02
RU2009135387A (en) 2011-03-27
US20100176153A1 (en) 2010-07-15
HK1137709A1 (en) 2010-08-06
MX2009007553A (en) 2009-08-13
FR2912999B1 (en) 2009-04-17
PT2125569E (en) 2010-05-31
PL2125569T3 (en) 2010-09-30
CN101600632B (en) 2011-06-08
BRPI0807503A2 (en) 2014-05-27
CN101600632A (en) 2009-12-09
ATE463444T1 (en) 2010-04-15
FR2912999A1 (en) 2008-08-29
DE602008000982D1 (en) 2010-05-20
EP2125569B1 (en) 2010-04-07
IL199669A0 (en) 2010-04-15
CA2678629A1 (en) 2008-09-12
JP2010519144A (en) 2010-06-03
AU2008223993A1 (en) 2008-09-12
ZA200904733B (en) 2010-04-28
DK2125569T3 (en) 2010-07-19

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