EP1440020B1 - Valve seal - Google Patents
Valve seal Download PDFInfo
- Publication number
- EP1440020B1 EP1440020B1 EP02796322A EP02796322A EP1440020B1 EP 1440020 B1 EP1440020 B1 EP 1440020B1 EP 02796322 A EP02796322 A EP 02796322A EP 02796322 A EP02796322 A EP 02796322A EP 1440020 B1 EP1440020 B1 EP 1440020B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- gasket
- vulcanized
- hfc
- ethylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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 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
- B65D83/38—Details of the container body
Definitions
- the present invention relates to a valve seal for sealing a fluid dispensing device comprising a valve, in particular a metering valve, mounted on a product reservoir.
- Seals used in pressurized fluid dispensing devices must meet a number of conditions and meet certain requirements.
- these seals must provide good mechanical properties, have suitable swelling properties to the propellant, provide an adequate coefficient of friction, be waterproof to the propellant and provide good resistance to moisture.
- the CFC type thrusters have been largely replaced by propellants of the HFC-134a or HFC-227 type, with or without alcohol.
- propellants of the HFC-134a or HFC-227 type with or without alcohol.
- the use of such propellants alters the stresses on the joints, so that the conventional materials previously used in conjunction with the CFC gases no longer have the optimum characteristics.
- the properties of the seal materials can vary and therefore be more or less suitable.
- the document GB-2,323,597 discloses a joint consisting of an alloy comprising firstly a crosslinked elastomeric material, that is to say vulcanized, and secondly a thermoplastic material and / or a non-crosslinked elastomeric thermoplastic material. This type of alloy may be inappropriate in contact with the HFC propellant.
- 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 or HFC-227) with or without alcohol, which guarantees mechanical properties and / or optimum swelling properties and / or coefficient of friction and / or propellant sealing and / or moisture resistance.
- HFA type HFC-134a or HFC-227
- the present invention therefore relates to a valve seal for sealing a fluid dispensing 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 (TIR) or halobutyl (CIIR or BIIR) vulcanized with one or more material (s) selected from the group consisting of ethylene polyoctene (POE) ethylene propylene (EP), ethylene propylene diene (EPDM) and chloroprene (CR), all of these materials being vulcanized.
- EVA alloy vulcanized ethylene vinyl acetate
- TIR butyl
- CIIR or BIIR halobutyl
- said seal comprises ethylene propylene (EP) or ethylene propylene diene (EPDM).
- said seal comprises polyoctene ethylene (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 wetting agents. and / or plasticizers.
- other ingredient such as mineral fillers and / or carbon black fillers and / or vulcanizing agents and / or dyes and / or wetting agents. and / or plasticizers.
- the subject of the present invention is also 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 less a 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 made according to the present invention.
- the propellant comprises a gas of the type HFC-134a or HFC-227, with or without alcohol.
- the seal comprises as base polymer essentially a vulcanized ethylene vinyl acetate elastomer (EVA).
- EVA vulcanized ethylene vinyl acetate elastomer
- vulcanized polyoctene guarantees, in particular, low swelling properties in contact with HFC propellants.
- vulcanized ethylene propylene EP
- EPDM vulcanized ethylene propylene diene
- vulcanized polychloroprene makes it possible to obtain joints having good mechanical properties and having low swelling in HFC type propellants.
- seals comprising as vulcanized butyl base elastomer component (TIR) or halobutyl (CIIR or BIIR).
- TIR vulcanized butyl base elastomer component
- CIIR or BIIR halobutyl
- This type of seal has good moisture resistance as well as low swellings in HFC type propellants. Alloys with POE and / or EP and / or EPDM and / or vulcanized CR (s) can efficiently optimize the different properties.
- seal materials described above are vulcanized and may further include one or more other ingredient (s), generally well known in the field of joints.
- the seal formulations may include mineral fillers or black carbon fillers, vulcanizing agents, colorants, processing agents or plasticizers.
- valve seals for aerosol dispensers according to the invention can therefore be used in a large number of applications, their formulation mainly depending on the particular mechanical and sealing requirements as well as the products and thrusters to be brought into contact with said seals.
Description
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.The present invention relates to a valve seal for sealing a fluid dispensing device comprising a valve, in particular a metering valve, mounted on a product reservoir.
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.Seals used in pressurized fluid dispensing devices, such as aerosol devices, must meet a number of conditions and meet certain requirements. Thus, these seals must provide good mechanical properties, have suitable swelling properties to the propellant, provide an adequate coefficient of friction, be waterproof to the propellant and provide good resistance to moisture. These features are 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, especially ecological, the CFC type thrusters have been largely replaced by propellants of the HFC-134a or HFC-227 type, with or without alcohol. The use of such propellants alters the stresses on the joints, so that the conventional materials previously used in conjunction with the 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 can vary and therefore be more or less suitable.
Le document
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).It is an object of the present invention to provide valve gaskets that fulfill the above requirements optimally regardless of the nature of the propellant (HFC-134a or HFC-227, with or without alcohol).
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-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.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 or HFC-227) with or without alcohol, which guarantees mechanical properties and / or optimum swelling properties and / or coefficient of friction and / or propellant sealing and / or moisture resistance.
La présente invention a encore pour but de fournir des joints de valve qui soient simples et peu coûteux à fabriquer.It is another object of the present invention 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 (TIR) ou d'halobutyl (CIIR ou BIIR) vulcanisé avec un ou plusieurs matériau(x) choisi(s) dans le groupe constitué du polyoctène ethylène (POE), éthylène propylène (EP), éthylène propylène diène (EPDM) et chloroprène (CR), tous ces matériaux étant vulcanisés.The present invention therefore relates to a valve seal for sealing a fluid dispensing 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 (TIR) or halobutyl (CIIR or BIIR) vulcanized with one or more material (s) selected from the group consisting of ethylene polyoctene (POE) ethylene propylene (EP), ethylene propylene diene (EPDM) and chloroprene (CR), all of these materials being vulcanized.
Avantageusement, ledit joint comprend de l'éthylène propylène (EP) ou de l'éthylène propylène diène (EPDM).Advantageously, said seal comprises ethylene propylene (EP) or ethylene propylene diene (EPDM).
Avantageusement, ledit joint comprend du polyoctène éthylène (POE).Advantageously, said seal comprises polyoctene ethylene (POE).
Avantageusement, ledit joint comprend en outre un ou plusieurs autre(s) ingrédient(s) 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 wetting 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.The subject of the present invention is also 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 less a 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 made according to the present invention.
De préférence, le propulseur comprend un gaz du type HFC-134a ou HFC-227, avec ou sans alcool.Preferably, the propellant comprises a gas of the type HFC-134a or HFC-227, with or without alcohol.
Selon une première variante, le joint comporte en tant que polymère de base essentiellement un élastomère d'éthylène acétate de vinyle (EVA) vulcanisé.According to a first variant, the seal comprises as base polymer essentially a vulcanized ethylene vinyl acetate elastomer (EVA).
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 polyoctène ethylène (POE), le butyl (IIR), l'halobutyl (CIIR ou BIIR), l'éthylène propylène (EP) ou l'éthylène propylène 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.It turns out that in 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 thus particularly suitable for use as a dynamic seal. Of course, it can also be used as a neck seal in such an aerosol device to seal 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 (IIR), halobutyl (CIIR or BIIR), l ethylene propylene (EP) or ethylene propylene diene (EPDM) vulcanized. This makes it possible to optimize the properties of the joints, in particular as a function of the type of propellant (HFC-134a or HFC-227, with or without alcohol) and / or of the active ingredient to be dispensed.
L'ajout de polyoctène vulcanisé garantit notamment des propriétés de faible gonflement en contact avec des propulseurs du type HFC.The addition of vulcanized polyoctene guarantees, in particular, low swelling properties in contact with HFC propellants.
L'ajout d'éthylène propylène vulcanisé (EP) ou d'éthylène propylène 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 of vulcanized ethylene propylene diene (EPDM) makes it possible to obtain small swellings for the joints, in particular with HFC type propellants, 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 joints having good mechanical properties and having low swelling in HFC type propellants.
En variante, il est également envisageable de réaliser des joints comportant comme composant élastomère de base du butyl (TIR) ou de l'halobutyl (CIIR ou BIIR) 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.As a variant, it is also conceivable to produce seals comprising as vulcanized butyl base elastomer component (TIR) or halobutyl (CIIR or BIIR). This type of seal has good moisture resistance as well as low swellings in HFC type propellants. Alloys with POE and / or EP and / or EPDM and / or vulcanized CR (s) can efficiently optimize the different properties.
Tous les matériaux de joints décrits ci-dessus sont vulcanisés et peuvent en outre comprendre un ou plusieurs autre(s) ingrédient(s), 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 oeuvre ou des plastifiants.All of the seal materials described above are vulcanized and may further include one or more other ingredient (s), generally well known in the field of joints. In particular, the seal formulations may include mineral fillers or black carbon fillers, vulcanizing agents, colorants, processing agents or plasticizers.
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.The valve seals for aerosol dispensers according to the invention can therefore be used in a large number of applications, their formulation mainly depending on the particular mechanical and sealing requirements as well as the products and thrusters 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.The ease of manufacture and the moderate cost are also advantageous aspects of the seals of the present invention.
Claims (6)
- A valve gasket for sealing a fluid dispenser device comprising a valve, in particular a metering valve, mounted on a fluid reservoir, said gasket being characterized in that it comprises an alloy of vulcanized ethylene vinyl acetate (EVA) and/or of butyl (IIR) or of vulcanized halobutyl (CIIR or BIIR) with one or more materials selected from the group constituted by polyoctene ethylene (POE), ethylene propylene (EP), ethylene propylene diene monomer (EPDM) and chloroprene rubber (CR), all of these materials being vulcanized.
- A gasket according to claim 1, in which said gasket comprises ethylene propylene (EP) or ethylene propylene diene monomer (EPDM).
- A gasket according to claim 1 or claim 2, in which said gasket comprises polyoctene ethylene (POE).
- A gasket according to any preceding claim, in which said gasket comprises one or more other ingredients such as inorganic fillers and/or carbon black fillers and/or vulcanization agents and/or dyes and/or processing agents and/or plasticizers.
- A fluid dispenser device comprising a valve, in particular a metering valve, provided with a moving valve member, said valve being mounted on a reservoir containing the fluid and a propellant, the device including at least one neck gasket between the valve and the reservoir, and at least one dynamic gasket in which said valve member slides, said dispenser device being characterized in that at least one of said gaskets is made in accordance with any one of claims 1 to 4.
- A fluid dispenser according to claim 5, in which the propellant comprises an HFC-134a or HFC-227 gas, with or without alcohol.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0111237 | 2001-08-29 | ||
| FR0111237A FR2829118B1 (en) | 2001-08-29 | 2001-08-29 | VALVE SEAL |
| PCT/FR2002/002957 WO2003018432A1 (en) | 2001-08-29 | 2002-08-29 | Valve seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1440020A1 EP1440020A1 (en) | 2004-07-28 |
| EP1440020B1 true 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2872494B1 (en) * | 2004-07-01 | 2006-11-17 | Valois Sas | DISPENSER OF FLUID OR PULVERIZING PRODUCTS |
| EP2011823B1 (en) * | 2006-04-26 | 2011-08-10 | NOK Corporation | 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)
| 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 |
-
2001
- 2001-08-29 FR FR0111237A patent/FR2829118B1/en not_active Expired - Lifetime
-
2002
- 2002-08-29 CN CNB028170105A patent/CN1269700C/en not_active Expired - Lifetime
- 2002-08-29 EP EP02796322A patent/EP1440020B1/en not_active Expired - Lifetime
- 2002-08-29 WO PCT/FR2002/002957 patent/WO2003018432A1/en active IP Right Grant
- 2002-08-29 DE DE60226052T patent/DE60226052T2/en not_active Expired - Lifetime
- 2002-08-29 JP JP2003523107A patent/JP4542337B2/en not_active Expired - Fee Related
- 2002-08-29 US US10/487,927 patent/US7396019B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005501783A (en) | 2005-01-20 |
| DE60226052T2 (en) | 2009-07-02 |
| DE60226052D1 (en) | 2008-05-21 |
| EP1440020A1 (en) | 2004-07-28 |
| WO2003018432A1 (en) | 2003-03-06 |
| CN1549786A (en) | 2004-11-24 |
| US20050067796A1 (en) | 2005-03-31 |
| CN1269700C (en) | 2006-08-16 |
| FR2829118A1 (en) | 2003-03-07 |
| US7396019B2 (en) | 2008-07-08 |
| FR2829118B1 (en) | 2004-10-15 |
| JP4542337B2 (en) | 2010-09-15 |
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