EP3609809B1 - Dosierventil für einen fluidproduktspender - Google Patents

Dosierventil für einen fluidproduktspender Download PDF

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Publication number
EP3609809B1
EP3609809B1 EP18724939.6A EP18724939A EP3609809B1 EP 3609809 B1 EP3609809 B1 EP 3609809B1 EP 18724939 A EP18724939 A EP 18724939A EP 3609809 B1 EP3609809 B1 EP 3609809B1
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EP
European Patent Office
Prior art keywords
valve
pbt
coefficient
metering
glass microspheres
Prior art date
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Active
Application number
EP18724939.6A
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English (en)
French (fr)
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EP3609809A1 (de
Inventor
Patrice LÉONÉ
Michael BAZIRE
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
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Aptar France SAS
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Publication of EP3609809A1 publication Critical patent/EP3609809A1/de
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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
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/52—Valves specially adapted therefor; Regulating devices for metering
    • B65D83/54—Metering valves ; Metering valve assemblies

Definitions

  • the present invention relates to a metering valve for a fluid dispenser.
  • valve The preferred field of application of such a valve is pharmaceuticals, but this type of valve can also be used in other fields, for example cosmetics or perfumery.
  • the metering valves of the prior art comprise a valve body defining a metering chamber in which a valve slides between rest and actuation positions.
  • the valve body and the valve are mostly made by molding plastic materials of the polymer type, such as polyethylene (PE), polypropylene (PP), polyacetal (POM) or polybutylene terephthalate (PBT).
  • PE polyethylene
  • PP polypropylene
  • POM polyacetal
  • PBT polybutylene terephthalate
  • metering valves must meet requirements of reduced tolerances and be of great dimensional stability for their very small components which constitute them. There is also a requirement of perfect cylindricity for these metering valve components, necessary to maintain the valve sealing points, despite the 5 bar pressure found in the reservoir.
  • the injection-molding process is widely used for the production of parts intended for applications such as packaging, electricity, automobiles, cosmetics or consumer goods. This process is also used in high-tech industries such as medical, pharmaceutical, aeronautics or nuclear.
  • the appearance of the injected parts is a very important criterion, especially for medical applications for which a high level of quality is essential to guarantee patient safety.
  • certain appearance defects can be generated during the manufacture of parts and their control in large-scale production can prove to be delicate.
  • the presence of faults, in particular on safety parts can cause malfunctions or fragility of devices such as metering valves.
  • defects can be remedied in several ways, for example by modifying the parameters of the injection-molding process, by modifying the design of the part to be molded, or by adding additives to the polymers to improve their molding performance.
  • Nucleating agents are the most widely used additives, in particular for removing surface defects. These nucleating agents act by modifying the crystallization kinetics. These nucleating agents can be based on talc or organic products. Other products, such as blowing agents, can also be used. They break down during the molding process to give a foamed structure. They can be based on sodium bicarbonate and sodium citrate.
  • the object of the present invention is to overcome the aforementioned problems.
  • Another object of the present invention is to provide such a metering valve allowing reliable, regular and reproducible distribution of product on each actuation of the dispenser.
  • Another object of the present invention is to provide a metering valve that is simple and inexpensive to manufacture and to assemble.
  • the present invention therefore relates to a metering valve for a fluid product dispenser, comprising a valve body defining a metering chamber in which a valve slides between positions. rest and actuation, said valve body and / or said valve being produced by injection molding of a material comprising a polybutylene terephthalate (PBT) matrix and glass microspheres dispersed in said PBT matrix.
  • PBT polybutylene terephthalate
  • said glass microspheres have a diameter of between 1 and 2000 ⁇ m, advantageously between 1 and 100 ⁇ m.
  • said glass microspheres are added to the PBT matrix at a rate of between 1 and 20% by weight, advantageously between 1 and 15% by weight.
  • a subject of the present invention is also a fluid product dispenser, comprising a reservoir containing the fluid product to be dispensed, and a metering valve as described above.
  • said distributor comprises an HFA gas as propellant gas.
  • top refers to the upright position shown in the figure. figure 1
  • bottom refers to the upright position shown in the figure. figure 1
  • axial refers to the longitudinal axis of the valve shown in figure 1 .
  • the metering valve shown on figure 1 is of the retention type. It is understood, however, that this is only an example, and that the present invention applies to all types of metering valves.
  • the valve has a valve body 10 extending along a longitudinal axis. Inside said valve body 10, a valve 30 slides between a rest position, which is that shown in figure. figure 1 , and a dispensing position, in which the valve 30 is pressed inside the valve body 10.
  • This valve is intended to be assembled on a reservoir 1, preferably by means of a fixing element 5, which may be a crimp, screw or snap cap, and advantageously with the interposition of a neck gasket 6.
  • a ring 4 can be assembled around the valve body, in particular to reduce the dead volume in the inverted position and to limit the contact of the fluid product with the neck seal.
  • This ring can be of any shape, and the example of the figure 1 is not limiting.
  • the valve 30 is biased towards its rest position by a spring 8, which is arranged in the valve body 10 and which cooperates on the one hand with this valve body 10, and on the other hand with the valve 30, preferably with a radial flange 320 of the valve 30.
  • a metering chamber 20 is defined inside the valve body 10, said valve 30 sliding inside said metering chamber to allow distribution of the contents thereof. when the valve is actuated.
  • the metering chamber is preferably defined between two annular seals, a valve seal 21 and a chamber seal 22, in a well known manner.
  • the figure 1 shows the valve in the upright storage position, that is to say the position in which the metering chamber 20 is placed above the reservoir 1.
  • the valve 30 has an outlet port 301 connected to an inlet port 302, which is disposed in the metering chamber 20 when the valve 30 is in the dispensing position.
  • the valve 30 can be made in two parts, namely an upper part 31 (also called the top of the valve) and a lower part 32 (also called the bottom of the valve).
  • the lower part 32 is in this embodiment assembled inside the upper part 31.
  • An internal channel 33 is provided in the valve 30 which makes it possible to connect the metering chamber 20 to the reservoir 1, to fill said metering chamber 20 when, after each actuation of the valve, the valve 30 returns to its position. rest under the effect of the spring 8. This filling takes place when the device is still in the inverted position of use, with the valve positioned below the reservoir.
  • said valve body and / or said valve is (are) produced by injection molding of a material comprising a polybutylene terephthalate (PBT) matrix and glass microspheres dispersed in said PBT matrix.
  • PBT polybutylene terephthalate
  • the solid glass microspheres are made from glass, advantageously recycled, and have the advantage of not containing free silica or heavy metals. They come in powder form. They have a basic pH, which is favorable when we want to limit interactions with active ingredients. They can be the subject of a surface treatment with a coupling agent, selected according to the nature of the matrix, and which allows better adhesion between the microsphere and the matrix as well as better dispersion.
  • Glass microspheres typically have a diameter of between 1 and 2000 ⁇ m. In the various tests carried out and described below, glass microspheres with a diameter of between 3 and 100 ⁇ m were used, with a median diameter of between 10 and 30 ⁇ m. These microspheres can be added to the PBT matrix at a rate of between 1 and 20% by weight, advantageously between 1 and 15% by weight.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Valve Housings (AREA)
  • Nozzles (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Claims (5)

  1. Dosierventil für Fluidproduktverteiler, das einen Ventilkörper (10) aufweist, der eine Dosierkammer (20) definiert, in der ein Schieber (30) zwischen einer Ruheposition und einer Betätigungsposition gleitet, dadurch gekennzeichnet, dass der Ventilkörper (10) und/oder der Schieber (30) durch Spritzgießen eines Materials hergestellt sind, das einen Polybutylen-Terephtalat-Grundkörper (PBT-Grundkörper) und Glas-Mikrokugeln, die in dem PBT-Grundstoff dispergiert sind, enthält.
  2. Ventil nach Anspruch 1, wobei die Glas-Mikrokugeln einen Durchmesser von 1 bis 2000 µm, vorteilhaft von 1 bis 100 µm, besitzen.
  3. Ventil nach Anspruch 1 oder 2, wobei die Glas-Mikrokugeln zu dem PBT-Grundkörper in einem Anteil von 1 bis 20 Gewichtsprozent, vorteilhaft von 1 bis 15 Gewichtsprozent, hinzugefügt sind.
  4. Fluidproduktverteiler, der einen Vorratsbehälter (1) aufweist, der ein zu verteilendes Fluidprodukt enthält, dadurch gekennzeichnet, dass der Verteiler ein Dosierventil nach einem der vorhergehenden Ansprüche umfasst.
  5. Verteiler nach Anspruch 4, der als Treibgas ein HFA-Gas enthält.
EP18724939.6A 2017-04-13 2018-04-09 Dosierventil für einen fluidproduktspender Active EP3609809B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1753244A FR3065176B1 (fr) 2017-04-13 2017-04-13 Valve doseuse pour distributeur de produit fluide
PCT/FR2018/050884 WO2018189469A1 (fr) 2017-04-13 2018-04-09 Valve doseuse pour distributeur de produit fluide

Publications (2)

Publication Number Publication Date
EP3609809A1 EP3609809A1 (de) 2020-02-19
EP3609809B1 true EP3609809B1 (de) 2021-06-09

Family

ID=58993121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18724939.6A Active EP3609809B1 (de) 2017-04-13 2018-04-09 Dosierventil für einen fluidproduktspender

Country Status (6)

Country Link
US (1) US20200047981A1 (de)
EP (1) EP3609809B1 (de)
JP (1) JP2020520859A (de)
CN (1) CN110650899A (de)
FR (1) FR3065176B1 (de)
WO (1) WO2018189469A1 (de)

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111893A (en) * 1977-05-20 1978-09-05 Gaf Corporation Polybutylene terephthalate molding resin
US4157325A (en) * 1977-07-11 1979-06-05 Gaf Corporation PBT molding compositions
DE2734950A1 (de) * 1977-08-03 1979-02-15 Agrotop Graef & Habich Gmbh Kunststoffduese
JP3131949B2 (ja) * 1991-10-11 2001-02-05 大日本インキ化学工業株式会社 ポリエステル樹脂組成物
FR2670139B1 (fr) * 1992-01-15 1993-12-24 Valois Valve doseuse utilisable en position inversee.
GB9626960D0 (en) * 1996-12-27 1997-02-12 Glaxo Group Ltd Valve for aerosol container
DE19835273A1 (de) * 1997-09-03 1999-03-04 Bespak Plc Dosierventil für einen Druck-Abgabe-Behälter
JPH11166117A (ja) * 1997-12-02 1999-06-22 Polyplastics Co ポリブチレンテレフタレート樹脂組成物およびその成形品
DE19924098A1 (de) * 1999-05-26 2000-12-07 Boehringer Ingelheim Pharma Edelstahlkanister für treibgasbetriebene Dosieraerosole
GB0315791D0 (en) * 2003-07-07 2003-08-13 3M Innovative Properties Co Two component molded valve stems
FR2852301B1 (fr) * 2003-03-13 2006-02-10 Valois Sas Dispositif de distribution de produit fluide
GB0315801D0 (en) * 2003-07-07 2003-08-13 3M Innovative Properties Co Multi-component valve stems
JP2005179631A (ja) * 2003-11-28 2005-07-07 Aisin Seiki Co Ltd 複合材料及びその製造方法
US7503469B2 (en) * 2005-03-09 2009-03-17 Rexam Closure Systems Inc. Integrally molded dispensing valve and method of manufacture
ES2439249T3 (es) * 2008-02-08 2014-01-22 Greif International Holding B.V. Válvula para recipientes para líquidos
US8881944B2 (en) * 2008-06-30 2014-11-11 S.C. Johnson & Son, Inc. Overcap for and a method of actuating a volatile material dispenser
CH703028B1 (de) * 2010-04-28 2014-05-30 Coca Cola Co Druckknopf-Dispenser für Flaschen mit karbonisierten Getränken.
FR2968283B1 (fr) * 2010-12-03 2013-01-04 Valois Sas Valve de distribution de produit fluide.
FR2971772B1 (fr) * 2011-02-17 2013-03-22 Valois Sas Dispositif de distribution de produit fluide.
HUE031396T2 (en) * 2013-06-28 2017-07-28 Altachem Nv valve Tag
CN103756298B (zh) * 2013-12-03 2017-01-04 惠州市昌亿科技股份有限公司 一种热塑性聚合物基导热复合材料及其制备方法和应用
FR3035382B1 (fr) * 2015-04-24 2019-10-18 Nemera La Verpilliere Valve doseuse perfectionnee de distribution d'un aerosol comprenant une tige de valve
KR102672919B1 (ko) * 2015-08-04 2024-06-05 코스터 테크날러지 스페셜리 에스.피.에이. 유체 매체 분사 시스템에서 사용하기 위한 밸브 컵 및 용기
CH712902A1 (de) * 2016-09-12 2018-03-15 Alpla Werke Alwin Lehner Gmbh & Co Kg Innendruckbeständiger Kunststoffbehälter, insbesondere Kunststoff-Aerosolbehälter.
US20180169549A1 (en) * 2016-12-16 2018-06-21 Clarcor Engine Mobile Solutions, Llc Filter assembly with primer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3065176A1 (fr) 2018-10-19
WO2018189469A1 (fr) 2018-10-18
FR3065176B1 (fr) 2019-06-07
CN110650899A (zh) 2020-01-03
US20200047981A1 (en) 2020-02-13
JP2020520859A (ja) 2020-07-16
EP3609809A1 (de) 2020-02-19

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