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EP1440020A1 - Valve seal - Google Patents

Valve seal

Info

Publication number
EP1440020A1
EP1440020A1 EP02796322A EP02796322A EP1440020A1 EP 1440020 A1 EP1440020 A1 EP 1440020A1 EP 02796322 A EP02796322 A EP 02796322A EP 02796322 A EP02796322 A EP 02796322A EP 1440020 A1 EP1440020 A1 EP 1440020A1
Authority
EP
European Patent Office
Prior art keywords
valve
seal
vulcanized
ethylene
ethylene propylene
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
Application number
EP02796322A
Other languages
German (de)
French (fr)
Other versions
EP1440020B1 (en
Inventor
Sandrine Barranco
Patrice Leone
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.)
Aptar France SAS
Original Assignee
Valois SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valois SAS filed Critical Valois SAS
Publication of EP1440020A1 publication Critical patent/EP1440020A1/en
Application granted granted Critical
Publication of EP1440020B1 publication Critical patent/EP1440020B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • B65D83/38—Details of the container body

Definitions

  • the present invention relates to a valve seal for sealing a fluid dispenser device comprising a valve, in particular a metering valve, mounted on a product reservoir.
  • the seals used in the context of devices for dispensing fluid under pressure, such as aerosol devices must satisfy a certain number of conditions and fulfill certain requirements. Thus, these seals must provide good mechanical properties, have suitable swelling properties for the propellant, provide an adequate coefficient of friction, be impermeable to the propellant and ensure good resistance to humidity. These characteristics are in particular particularly important for the dynamic seals which form the seal between the movable valve of the valve and the valve chamber which contains the dose to be expelled.
  • propellants of the CFC type have to a large extent been replaced by propellants of the HFC-134a or HFC-227 type, with or without alcohol.
  • the use of such propellants modifies the stresses on the seals, so that the conventional materials previously used in conjunction with CFC gases no longer have the optimum characteristics.
  • the properties of the seal materials may vary and therefore be more or less suitable.
  • Document GB-2 323 597 describes a seal made of an alloy comprising on the one hand a crosslinked elastomeric material, that is to say vulcanized, and on the other hand a thermoplastic material and / or a noncrosslinked elastomeric thermoplastic material. This type of alloy may prove to be inappropriate in contact with propellants of the HFC type.
  • the object of the present invention is to provide valve seals which fulfill the abovementioned requirements optimally whatever the nature of the propellant (HFC-134a or HFC-227, with or without alcohol).
  • the present invention also aims to provide a valve seal intended to come into contact with a fluid product and a propellant of the HFA type (HFC-
  • the present invention also aims to provide valve seals which are simple and inexpensive to manufacture.
  • the present invention therefore relates to a valve seal for sealing a fluid dispenser device comprising a valve, in particular a metering valve, mounted on a product reservoir, characterized in that said seal comprises an alloy vulcanized ethylene vinyl acetate (EVA) and / or butyl (LTR) or halobutyl (CHR or BILR) vulcanized with one or more material (s) chosen from the group consisting of polyethylene polyethylene (POE) , ethylene propylene (EP), ethylene propylene diene (EPDM) and chloroprene (CR), all of these materials being vulcanized.
  • EVA alloy vulcanized ethylene vinyl acetate
  • LTR butyl
  • CHR or BILR halobutyl
  • said seal comprises ethylene propylene (EP) or ethylene propylene diene (EPDM).
  • said seal comprises polyethylene polyethylene (POE).
  • said seal further comprises one or more other ingredient (s) such as mineral fillers and / or carbon black fillers and / or vulcanizing agents and / or dyes and / or processing agents and / or plasticizers.
  • other ingredient such as mineral fillers and / or carbon black fillers and / or vulcanizing agents and / or dyes and / or processing agents and / or plasticizers.
  • the present invention also relates to a device for dispensing a fluid product, comprising a valve, in particular a metering valve, provided with a movable valve, said valve being mounted on a reservoir containing the fluid product and a propellant, the device comprising at at least one neck seal between the valve and the reservoir and at least one dynamic seal in which said valve slides, at least one of said seals being produced according to the present invention.
  • the propellant comprises a gas of the HFC-134a type or
  • the seal comprises as base polymer essentially an elastomer of ethylene vinyl acetate (ENA) vulcanized.
  • vulcanized ethylene propylene EP
  • EPDM vulcanized ethylene propylene diene
  • vulcanized polychloroprene makes it possible to obtain seals with good mechanical properties and having low swellings in HFC type propellants.
  • seals comprising as base elastomeric component butyl (LIR) or halobutyl (CILR or BUR) vulcanized.
  • LIR base elastomeric component butyl
  • CILR or BUR halobutyl
  • Alloys with POE and / or EP and / or EPDM and / or vulcanized CR (s) allow the various properties to be optimized effectively.
  • All joint materials described above are vulcanized and may further include one or more other ingredients), generally well known in the field of seals.
  • the joint formulations may include mineral fillers or carbon black fillers, vulcanizing agents, dyes, processing agents or plasticizers.
  • the valve seals for aerosol dispensers according to the invention can therefore be used in a large number of applications, their formulation depending mainly on the specific mechanical and sealing requirements as well as on the products and propellants to be brought into contact with said seals.

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)
  • Nozzles (AREA)
  • Sealing Material Composition (AREA)
  • Lift Valve (AREA)
  • Gasket Seals (AREA)

Abstract

The invention concerns a valve seal for sealing a fluid product dispensing device comprising a valve, in particular a metering valve, mounted on a product reservoir. The invention is characterised in that said seal comprises a vulcanized ethylene-vinyl acetate (EVA) and/or vulcanized butyl-acetate (IIR) or halobutyl-acetate (CIIR or BIIR) alloy with one or several material(s) selected in the group consisting of polyoctene ethylene (POE), ethylene propylene (EP), ethylene propylene diene (EPDM) and chloropene (CR), all these materials being vulcanized.

Description

Joint de valve Valve seal
La présente invention concerne un joint de valve pour réaliser l'étanchéité d'un dispositif de distribution de produit fluide comportant une valve, notamment une valve doseuse, montée sur un réservoir de produit. Les joints utilisés dans le cadre de dispositifs de distribution de produit fluide sous pression, tels que des dispositifs aérosols, doivent satisfaire un certain nombre de conditions et remplir certaines exigences. Ainsi, ces joints doivent fournir de bonnes propriétés mécaniques, présenter des propriétés de gonflement appropriés au propulseur, fournir un coefficient de frottement adéquat, être étanche au propulseur et assurer une bonne résistance à l'humidité. Ces caractéristiques sont notamment particulièrement importantes pour les joints dynamiques qui forment l'étanchéité entre la soupape mobile de la valve et la chambre de valve qui contient la dose à expulser.The present invention relates to a valve seal for sealing a fluid dispenser device comprising a valve, in particular a metering valve, mounted on a product reservoir. The seals used in the context of devices for dispensing fluid under pressure, such as aerosol devices, must satisfy a certain number of conditions and fulfill certain requirements. Thus, these seals must provide good mechanical properties, have suitable swelling properties for the propellant, provide an adequate coefficient of friction, be impermeable to the propellant and ensure good resistance to humidity. These characteristics are in particular particularly important for the dynamic seals which form the seal between the movable valve of the valve and the valve chamber which contains the dose to be expelled.
Pour des raisons diverses, notamment écologiques, les propulseurs de type CFC ont été dans une grande mesure remplacés par des propulseurs du type HFC-134a ou HFC-227, avec ou sans alcool. L'utilisation de tels propulseurs modifie les contraintes sur les joints, de sorte que les matériaux classiques utilisés précédemment en conjonction avec les gaz CFC ne présentent plus les caractéristiques optimales. De plus, selon le type de propulseur envisagé (HFC- 134a ou HFC-227, avec ou sans alcool), les propriétés des matériaux de joints peuvent varier et donc être plus ou moins adaptées.For various reasons, in particular ecological ones, propellants of the CFC type have to a large extent been replaced by propellants of the HFC-134a or HFC-227 type, with or without alcohol. The use of such propellants modifies the stresses on the seals, so that the conventional materials previously used in conjunction with CFC gases no longer have the optimum characteristics. In addition, depending on the type of propellant envisaged (HFC-134a or HFC-227, with or without alcohol), the properties of the seal materials may vary and therefore be more or less suitable.
Le document GB-2 323 597 décrit un joint constitué d'un alliage comportant d'une part un matériau élastomère réticulé, c'est à dire vulcanisé, et d'autre part un matériau thermoplastique et/ou un matériau thermoplastique élastomère non réticulé. Ce type d'alliage peut s'avérer inapproprié au contact de propulseur du type HFC.Document GB-2 323 597 describes a seal made of an alloy comprising on the one hand a crosslinked elastomeric material, that is to say vulcanized, and on the other hand a thermoplastic material and / or a noncrosslinked elastomeric thermoplastic material. This type of alloy may prove to be inappropriate in contact with propellants of the HFC type.
La présente invention a pour but de fournir des joints de valve qui remplissent les exigences susmentionnées de manière optimale quelle que soit la nature du propulseur (HFC-134a ou HFC-227, avec ou sans alcool). La présente invention a aussi pour but de fournir un joint de valve destiné à venir en contact avec un produit fluide et un propulseur du type HFA (HFC-The object of the present invention is to provide valve seals which fulfill the abovementioned requirements optimally whatever the nature of the propellant (HFC-134a or HFC-227, with or without alcohol). The present invention also aims to provide a valve seal intended to come into contact with a fluid product and a propellant of the HFA type (HFC-
134a ou HFC-227) avec ou sans alcool, qui garantisse des propriétés mécaniques et/ou des propriétés de gonflement et/ou un coefficient de frottement et/ou une étanchéité au propulseur et/ou une résistance à l'humidité qui soient optimales.134a or HFC-227) with or without alcohol, which guarantees mechanical properties and / or swelling properties and / or a coefficient of friction and / or tightness to the propellant and / or resistance to humidity which are optimal.
La présente invention a encore pour but de fournir des joints de valve qui soient simples et peu coûteux à fabriquer.The present invention also aims to provide valve seals which are simple and inexpensive to manufacture.
La présente invention a donc pour objet un joint de valve pour réaliser l'étanchéité d'un dispositif de distribution de produit fluide comportant une valve, notamment une valve doseuse, montée sur un réservoir de produit, caractérisé en ce que ledit joint comprend un alliage d'éthylène acétate de vinyle (EVA) vulcanisé et/ou de butyl (LTR) ou d'halobutyl (CHR ou BILR) vulcanisé avec un ou plusieurs matériau(x) choisi(s) dans le groupe constitué du polyoctene éthylène (POE), éthylène propylene (EP), éthylène propylene diène (EPDM) et chloroprène (CR), tous ces matériaux étant vulcanisés.The present invention therefore relates to a valve seal for sealing a fluid dispenser device comprising a valve, in particular a metering valve, mounted on a product reservoir, characterized in that said seal comprises an alloy vulcanized ethylene vinyl acetate (EVA) and / or butyl (LTR) or halobutyl (CHR or BILR) vulcanized with one or more material (s) chosen from the group consisting of polyethylene polyethylene (POE) , ethylene propylene (EP), ethylene propylene diene (EPDM) and chloroprene (CR), all of these materials being vulcanized.
Avantageusement, ledit joint comprend de l'éthylène propylene (EP) ou de l'éthylène propylene diène (EPDM).Advantageously, said seal comprises ethylene propylene (EP) or ethylene propylene diene (EPDM).
Avantageusement, ledit joint comprend du polyoctene éthylène (POE).Advantageously, said seal comprises polyethylene polyethylene (POE).
Avantageusement, ledit joint comprend en outre un ou plusieurs autre(s) ingrédients) tels que des charges minérales et/ou des charges noir de carbone et/ou des agents de vulcanisation et/ou des colorants et/ou des agents de mise en oeuvre et/ou des plastifiants.Advantageously, said seal further comprises one or more other ingredient (s) such as mineral fillers and / or carbon black fillers and / or vulcanizing agents and / or dyes and / or processing agents and / or plasticizers.
La présente invention a également pour objet un dispositif de distribution de produit fluide, comprenant une valve, notamment une valve doseuse, pourvue d'une soupape mobile, ladite valve étant montée sur un réservoir contenant le produit fluide et un propulseur, le dispositif comportant au moins un joint de col entre la valve et le réservoir et au moins un joint dynamique dans lequel coulisse ladite soupape, au moins un desdits joints étant réalisé selon la présente invention. De préférence, le propulseur comprend un gaz du type HFC-134a ouThe present invention also relates to a device for dispensing a fluid product, comprising a valve, in particular a metering valve, provided with a movable valve, said valve being mounted on a reservoir containing the fluid product and a propellant, the device comprising at at least one neck seal between the valve and the reservoir and at least one dynamic seal in which said valve slides, at least one of said seals being produced according to the present invention. Preferably, the propellant comprises a gas of the HFC-134a type or
HFC-227, avec ou sans alcool. Selon une première variante, le joint comporte en tant que polymère de base essentiellement un élastomère d'éthylène acétate de vinyle (ENA) vulcanisé.HFC-227, with or without alcohol. According to a first variant, the seal comprises as base polymer essentially an elastomer of ethylene vinyl acetate (ENA) vulcanized.
Il s'avère qu'au contact d'un propulseur du type HFC-134a ou HFC-227, avec ou sans alcool (par exemple de l'éthanol), il présente de bonnes propriétés mécaniques et de faibles gonflements. Il est ainsi particulièrement adapté à être utilisé en tant que joint dynamique. Bien entendu, il est également utilisable en tant que joint de col dans un tel dispositif aérosol pour réaliser l'étanchéité entre la valve et le réservoir contenant le produit et le propulseur. Il présente également l'avantage de s'allier facilement avec d'autres matériaux élastomères vulcanisés, tels que le polychloroprène (CR), le polyoctene ethylene (POE), le butyl (LLR), l'halobutyl (CIIR ou BIIR), l'éthylène propylene (EP) ou l'éthylène propylene diène (EPDM) vulcanisé(s). Ceci permet d'optimiser les propriétés des joints, notamment en fonction du type de propulseur (HFC-134a ou HFC-227, avec ou sans alcool) et/ou du principe actif à distribuer. L'ajout de polyoctene vulcanisé garantit notamment des propriétés de faible gonflement en contact avec des propulseurs du type HFC.It turns out that on contact with a propellant of the HFC-134a or HFC-227 type, with or without alcohol (for example ethanol), it has good mechanical properties and low swelling. It is therefore particularly suitable for use as a dynamic joint. Of course, it can also be used as a neck seal in such an aerosol device for sealing between the valve and the reservoir containing the product and the propellant. It also has the advantage of easily combining with other vulcanized elastomeric materials, such as polychloroprene (CR), polyoctene ethylene (POE), butyl (LLR), halobutyl (CIIR or BIIR), l ethylene propylene (EP) or vulcanized ethylene propylene diene (EPDM). This makes it possible to optimize the properties of the seals, in particular as a function of the type of propellant (HFC-134a or HFC-227, with or without alcohol) and / or of the active principle to be dispensed. The addition of vulcanized polyoctene notably guarantees properties of low swelling in contact with propellants of the HFC type.
L'ajout d'éthylène propylene vulcanisé (EP) ou d'éthylène propylene diène (EPDM) vulcanisé permet d'obtenir pour les joints de faibles gonflements, notamment avec des propulseurs du type HFC, tout en maintenant un bon niveau de propriétés mécaniques, à un coût de fabrication raisonnable.The addition of vulcanized ethylene propylene (EP) or vulcanized ethylene propylene diene (EPDM) makes it possible to obtain low swellings for the joints, in particular with propellants of the HFC type, while maintaining a good level of mechanical properties, at a reasonable manufacturing cost.
L'ajout de polychloroprène (CR) vulcanisé permet d'obtenir des joints ayant de bonnes propriétés mécaniques et présentant de faibles gonflements dans des propulseurs de type HFC.The addition of vulcanized polychloroprene (CR) makes it possible to obtain seals with good mechanical properties and having low swellings in HFC type propellants.
En variante, il est également envisageable de réaliser des joints comportant comme composant élastomère de base du butyl (LIR) ou de l'halobutyl (CILR ou BUR) vulcanisé. Ce type de joint présente une bonne résistance à l'humidité ainsi que de faibles gonflements dans des propulseurs du type HFC. Des alliages avec le POE et/ou l'EP et/ou l'EPDM et/ou le CR vulcanisé(s) permettent d'optimiser efficacement les différentes propriétés. Tous les matériaux de joints décrits ci-dessus sont vulcanisés et peuvent en outre comprendre un ou plusieurs autre(s) ingrédients), généralement bien connu(s) dans le domaine des joints. En particulier, les formulations des joints peuvent comprendre des charges minérales ou des charges noir de carbone, des agents de vulcanisation, des colorants, des agents de mise en œuvre ou des plastifiants. Les joints de valve pour distributeurs aérosols selon l'invention peuvent donc être utilisés dans un grand nombre d'applications, leur formulation dépendant principalement des exigences mécaniques et d'étanchéité particulières ainsi que des produits et des propulseurs à mettre en contact avec lesdits joints.As a variant, it is also possible to produce seals comprising as base elastomeric component butyl (LIR) or halobutyl (CILR or BUR) vulcanized. This type of seal has good resistance to humidity and low swelling in HFC type thrusters. Alloys with POE and / or EP and / or EPDM and / or vulcanized CR (s) allow the various properties to be optimized effectively. All joint materials described above are vulcanized and may further include one or more other ingredients), generally well known in the field of seals. In particular, the joint formulations may include mineral fillers or carbon black fillers, vulcanizing agents, dyes, processing agents or plasticizers. The valve seals for aerosol dispensers according to the invention can therefore be used in a large number of applications, their formulation depending mainly on the specific mechanical and sealing requirements as well as on the products and propellants to be brought into contact with said seals.
La facilité de fabrication et le coût modéré sont également des aspects avantageux des joints de la présente invention. Ease of manufacture and moderate cost are also advantageous aspects of the seals of the present invention.

Claims

Revendications claims
1.- Joint de valve pour réaliser l'étanchéité d'un dispositif de distribution de produit fluide comportant une valve, notamment une valve doseuse, montée sur un réservoir de produit, caractérisé en ce que ledit joint comprend un alliage d'éthylène acétate de vinyle (ENA) vulcanisé et/ou de butyl (HR) ou d'halobutyl (C TR ou BILR) vulcanisé avec un ou plusieurs matériau(x) choisi(s) dans le groupe constitué du polyoctene ethylene (POE), éthylène propylene (EP), éthylène propylene diène (EPDM) et chloroprène (CR), tous ces matériaux étant vulcanisés. 1.- valve seal for sealing a fluid dispenser device comprising a valve, in particular a metering valve, mounted on a product tank, characterized in that said seal comprises an alloy of ethylene acetate vulcanized vinyl (ENA) and / or butyl (HR) or halobutyl (C TR or BILR) vulcanized with one or more material (s) chosen from the group consisting of polyoctene ethylene (POE), ethylene propylene ( EP), ethylene propylene diene (EPDM) and chloroprene (CR), all of these materials being vulcanized.
2.- Joint selon la revendication 1, dans lequel ledit joint comprend de l'éthylène propylene (EP) ou de l'éthylène propylene diène (EPDM).2. A seal according to claim 1, wherein said seal comprises ethylene propylene (EP) or ethylene propylene diene (EPDM).
3.- Joint selon la revendication 1 ou 2, dans lequel ledit joint comprend du polyoctene éthylène (POE).3. A seal according to claim 1 or 2, wherein said seal comprises polyoctene ethylene (POE).
4.- Joint selon l'une quelconque des revendications précédentes, dans lequel ledit joint comprend un ou plusieurs autres ingrédients tels que les charges minérales et/ou des charges noires de carbone et/ou des agents de vulcanisation et/ ou des colorants et/ou des agents de mise en œuvre et/ou des plastifiants.4. Joint according to any one of the preceding claims, in which said joint comprises one or more other ingredients such as mineral fillers and / or black carbon fillers and / or vulcanizing agents and / or dyes and / or processing agents and / or plasticizers.
5.- Dispositif de distribution de produit fluide, comprenant une valve, notamment une valve doseuse, pourvue d'une soupape mobile, ladite valve étant montée sur un réservoir contenant le produit fluide et un propulseur, le dispositif comportant au moins un joint de col entre la valve et le réservoir et au moins un joint dynamique dans lequel coulisse ladite soupape, caractérisé en ce qu'au moins un desdits joints est réalisé selon l'une quelconque des revendications 1 à 4. 5.- Device for dispensing a fluid product, comprising a valve, in particular a metering valve, provided with a movable valve, said valve being mounted on a reservoir containing the fluid product and a propellant, the device comprising at least one neck seal between the valve and the reservoir and at least one dynamic seal in which said valve slides, characterized in that at least one of said seals is produced according to any one of claims 1 to 4.
6.- Dispositif de distribution de produit fluide selon la revendication 5, dans lequel le propulseur comprend un gaz HFC-134a ou HFC-227, avec ou sans alcool.6. A fluid dispenser device according to claim 5, wherein the propellant comprises an HFC-134a or HFC-227 gas, with or without alcohol.
**** ****
EP02796322A 2001-08-29 2002-08-29 Valve seal Expired - Lifetime EP1440020B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0111237A FR2829118B1 (en) 2001-08-29 2001-08-29 VALVE SEAL
FR0111237 2001-08-29
PCT/FR2002/002957 WO2003018432A1 (en) 2001-08-29 2002-08-29 Valve seal

Publications (2)

Publication Number Publication Date
EP1440020A1 true EP1440020A1 (en) 2004-07-28
EP1440020B1 EP1440020B1 (en) 2008-04-09

Family

ID=8866819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02796322A Expired - Lifetime EP1440020B1 (en) 2001-08-29 2002-08-29 Valve seal

Country Status (7)

Country Link
US (1) US7396019B2 (en)
EP (1) EP1440020B1 (en)
JP (1) JP4542337B2 (en)
CN (1) CN1269700C (en)
DE (1) DE60226052T2 (en)
FR (1) FR2829118B1 (en)
WO (1) WO2003018432A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2872494B1 (en) * 2004-07-01 2006-11-17 Valois Sas DISPENSER OF FLUID OR PULVERIZING PRODUCTS
CN101426849B (en) * 2006-04-26 2011-05-18 Nok株式会社 Epdm composition
GB201221063D0 (en) 2012-11-23 2013-01-09 3M Innovative Properties Co Metered dose dispensing valve
US11242191B2 (en) * 2015-01-27 2022-02-08 Airopack Technology Group B.V. Pressure control system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858764A (en) 1971-11-08 1975-01-07 Wilkinson Sword Ltd Pressurized dispensers
IN191688B (en) * 1995-08-08 2003-12-13 Abplanalp Robert H
GB2323597A (en) * 1997-03-26 1998-09-30 Bespak Plc Sealing material for use in a valve for an aerosol inhaler
GB2324121A (en) * 1997-04-07 1998-10-14 Bespak Plc Seal arrangements for pressurised dispensing containers
FR2787424B1 (en) * 1998-12-18 2001-03-02 Valois Sa VALVE OR PUMP SEAL

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03018432A1 *

Also Published As

Publication number Publication date
US7396019B2 (en) 2008-07-08
CN1269700C (en) 2006-08-16
JP2005501783A (en) 2005-01-20
DE60226052T2 (en) 2009-07-02
CN1549786A (en) 2004-11-24
US20050067796A1 (en) 2005-03-31
DE60226052D1 (en) 2008-05-21
WO2003018432A1 (en) 2003-03-06
FR2829118B1 (en) 2004-10-15
FR2829118A1 (en) 2003-03-07
JP4542337B2 (en) 2010-09-15
EP1440020B1 (en) 2008-04-09

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