EP3363544B2 - System for dispensing a fluid product - Google Patents

System for dispensing a fluid product Download PDF

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Publication number
EP3363544B2
EP3363544B2 EP18158045.7A EP18158045A EP3363544B2 EP 3363544 B2 EP3363544 B2 EP 3363544B2 EP 18158045 A EP18158045 A EP 18158045A EP 3363544 B2 EP3363544 B2 EP 3363544B2
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EP
European Patent Office
Prior art keywords
rod
dispensing
polyolefin
coc
loaded
Prior art date
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Application number
EP18158045.7A
Other languages
German (de)
French (fr)
Other versions
EP3363544B1 (en
EP3363544A1 (en
Inventor
Mohamed Elmeguenni
Jacky Lasnier
Bernard Clerget
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.)
Silgan Dispensing Systems Le Treport SAS
Original Assignee
Albea Le Treport SAS
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Application filed by Albea Le Treport SAS filed Critical Albea Le Treport SAS
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Publication of EP3363544B1 publication Critical patent/EP3363544B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/105—Sealing arrangements around pump actuating stem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1025—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem a spring urging the outlet valve in its closed position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container

Definitions

  • the invention relates to a system for dispensing a product under pressure, as well as a bottle containing a product to be dispensed under pressure by means of such a dispensing system.
  • the product is used in cosmetics, in perfumery or for pharmaceutical treatments, for example by being in the form of a liquid, a lotion, a gel or a cream.
  • Dispensing systems comprising a body provided in particular with means for withdrawing a packaged product from a bottle in order to supply an internal chamber of said body.
  • the dispensing system can be in the form of a manually actuated pump or a valve making it possible to release a product packaged in a bottle under pressure.
  • Such a dispensing system conventionally comprises a rod on which is mounted a push button to be actuated reversibly in translation.
  • the stem is equipped with a valve which is arranged in the internal chamber between a stable state of closure of a dispensing path formed through said stem and the push button as far as a dispensing orifice, and a state constrained by actuation of the rod in which said delivery path is in communication with the internal chamber for the outlet under pressure of the product.
  • the push button has a housing in which is mounted a nozzle provided with the dispensing orifice.
  • the rod is subjected to high mechanical stresses which require the use of a material whose rigidity must be sufficient to prevent the operation of the distribution system from being altered by deformation of said rod.
  • deformations can lead to a breakage of the rod as well as to a loss of tightness of the assembly on the said rod of the valve and/or of the push button, these members being generally made of a more flexible material than that of the stem.
  • the nozzle is subjected to forces exerted by the pressure of the product in the dispensing path, these forces requiring the use of a material whose rigidity must be sufficient to prevent it from being expelled from the housing during of distribution.
  • the stem and/or the nozzle of a dispensing system can be made from a polymer from the polyacetal family, in particular polyoxymethylene (POM), also known as acetal. Indeed, the use of this type of material is satisfactory in particular in terms of its mechanical and chemical properties, sliding, dimensional stability, low moisture uptake.
  • POM polyoxymethylene
  • POM is now recognized as potentially presenting toxicological risks, mainly due to the release of formaldehyde during its hot injection into manufacturing molds, as well as during the destruction of end-of-life distribution systems.
  • various directives aim to regulate, control and limit the presence of substances potentially dangerous to human health in products, in particular cosmetics, which pushes cosmeticians to limit or even eliminate from their formulas preservatives which are often the cause of allergies. or intolerances.
  • Cosmetic products therefore become increasingly fragile, being easily contaminated by bacteria and fungi and having difficulty withstanding in particular contact with air which can cause, for example, drying out or oxidation of the product.
  • the POM has a porosity which proves to be too high to be able to contribute to the good preservation of the product before its distribution.
  • the air can diffuse through the POM in sufficient quantity to be able to contaminate and/or oxidize the product contained in the rod and in the nozzle between two distributions, said product also being able to dry out by evaporation through said rod and nozzle in Pom.
  • the pharmaceutical and cosmetics industries may need to sterilize their distribution systems to avoid any contamination of the product prior to its first distribution.
  • the fastest and most effective way to sterilize a system for dispensing a product is to expose it to gamma or beta radiation, in that it allows in particular the sterilization of closed volumes.
  • irradiation tends to modify the properties of the POM, in particular by weakening it mechanically and causing it to change its appearance.
  • the dispensing systems whose stem and/or nozzle is made from POM must be sterilized under gas, in particular under ethylene oxide, this process proving to be less effective and more complex to implement industrially than irradiation under gamma or beta rays.
  • the invention aims to improve the prior art by proposing in particular a dispensing system whose nozzle contributes to good preservation of the product to be dispensed, while having toxicological, mechanical and chemical properties which optimize its use.
  • a dispensing system according to the invention with a bottle, optionally sterilized, containing a product is particularly advantageous, in particular in relation to a product whose preservative content is limited or even zero.
  • the invention proposes a system for dispensing a pressurized product comprising a body equipped with means allowing the supply of an internal chamber of said body with product coming from a source, said system also comprising a rod on which is mounted a push button to be actuated reversibly in translation in said body, said rod being equipped with a valve which is arranged in the internal chamber while presenting a stable state of closure of a dispensing path formed through the rod and the push button to a dispensing orifice, and a constrained state by actuation of the rod in which said dispensing path is in communication with the internal chamber, said push button having a housing in which is mounted a nozzle provided with the dispensing orifice, said nozzle being made from a material comprising at least one polyolefin which is filled with at least one COC cyclic olefin copolymer, the stem being made from a material comprising at least one polyolefin which is loaded with at least one
  • the invention proposes a bottle comprising a neck on which the body of such a dispensing system is associated so as to allow the internal chamber to be supplied with product.
  • a manually actuated dispensing system is described below to allow the dispensing of a pressurized product, for example in the form of an aerosol, a hazelnut or a continuous stream depending on the nature of said product.
  • the product is in the form of a liquid, a lotion, a gel or a cream, for cosmetic use, perfumery or for pharmaceutical treatments.
  • the dispensing system comprises a body 1 in which is formed an internal chamber 2 which is supplied with product coming from a source, said body being equipped with means allowing the supply of said internal chamber.
  • the body 1 has a supply orifice 3, for example equipped with a dip tube 4, which is intended to be in communication with the interior of a bottle for packaging the product with a view to its sampling.
  • the body 1 can be equipped with a peripheral hoop 5 allowing said body to be sealed in the neck of a bottle by placing the supply orifice 3 in communication with the product packaged in said bottle.
  • hoop 5 is deformable, for example by being made of aluminum, to ensure its tight crimping around the neck.
  • the invention is not limited to a particular embodiment of the mounting of the dispensing system on the bottle, which can in particular be achieved by screwing, welding or tight snap-fastening.
  • the dispensing system comprises a rod 6 for supplying the pressurized product which is arranged in the body 1 and can be actuated reversibly in translation over a stroke respectively for dispensing and sucking said product by means of a push button 7 which is mounted on said rod.
  • Stem 6 is fitted with an exhaust valve 8 which is placed in internal chamber 2 while presenting a stable state of closure of a dispensing path formed through stem 6 and push button 7 up to a dispensing orifice 9, and a constrained state by actuation of said rod in which said dispensing path is in communication with said internal chamber.
  • the distribution of the product is carried out by finger pressing the push button 7 to move it axially by actuating the translation of the rod 6 in order to convey the product from the internal chamber 2 towards the distribution orifice 9 through which said product spell.
  • the rod 6 is made from a material whose rigidity is sufficient to prevent, by deformation of the said rod, the operation of the distribution system not be altered.
  • the material of the rod 6 must have satisfactory sliding properties and resistance to wear and creep.
  • the material of the upper 6 comprises at least one polyolefin which is filled with at least one cyclic olefin copolymer COC.
  • the polyolefins have overall insufficient mechanical characteristics to produce the rod 6, their reinforcement with COC makes them particularly suitable for this use.
  • a polyolefin loaded with COCs also makes it possible to contribute to good preservation of the product to be dispensed. Indeed, the porosity of this material proves to be low enough to prevent air and water from diffusing through the rod 6, thus limiting contamination, drying out and/or oxidation of the product contained in said rod between two distributions. Moreover, a polyolefin loaded with COC retains its properties, in particular mechanical and appearance properties, under irradiation by gamma or beta rays, which makes it possible to envisage rapid and effective sterilization of the dispensing system.
  • a bottle according to the invention is particularly advantageous for dispensing a product whose preservative content is limited or even zero and/or which needs to be sterilized.
  • a polyolefin loaded with COC makes it possible to limit the toxicological risks, in particular in that it is not likely to release any toxic component during its heating or its destruction at the end of its life.
  • a polyolefin rod 6 loaded with COC can be produced by molding, using tools and injection steps conventionally used for the components of a distribution system.
  • an optimal compromise between the conservation of the product to be dispensed and the toxicological, mechanical and chemical properties of the rod 6 is obtained by loading a polyolefin with a percentage by weight of COC which is between 10 and 50%.
  • the polyolefin used can have good intrinsic mechanical properties, in particular by being based on polypropylene.
  • the polypropylene is a homopolymer with a COC content of the order of 30%, the COC possibly being of the type marketed under the name TOPAS by the company TOPAS ADVANCED POLYMERS.
  • a dispensing pump arranged to deliver a liquid product in aerosol form is described below.
  • the invention is not limited to a particular type of distribution system, nor to a particular form of distribution.
  • the distribution path passes through an internal channel 10 formed in stem 6, said channel being in communication with two radial upstream orifices 11 and opening into the upper end of said stem.
  • the push button 7 has a well 12 which is mounted around the upper end of the rod 6 in order to pass the dispensing path through the internal channel 10 and said well.
  • the push button 7 has a housing 13 into which the dispensing path opens, a nozzle 14 provided with the dispensing orifice 9 being mounted in said housing.
  • the nozzle 14 is in communication with the mounting well 12 via a channel 15 provided in the push button 7, the dispensing path passing through said channel.
  • the distribution path opens into a swirl chamber 16 which is formed between the nozzle 14 and a bearing surface 17 of the housing 13, said swirl chamber being provided with the dispensing orifice 9.
  • This embodiment makes it possible to very quickly turn the liquid product in the swirl chamber 16 to restore said product in the form of an aerosol through the dispensing orifice 9.
  • the nozzle 14 can be under the shape of an extension tube.
  • the assemblies are made by fitting, the nozzle 14 also being equipped with a radial projection 18 forming a harpooning means in the housing 13.
  • said nozzle is made from a material comprising at least one polyolefin which is loaded with at least one COC.
  • the housing 13 can be made of polyolefin not loaded with COC to have a flexibility that promotes good harpooning of the rigid projection 18.
  • At least the well 12 can be made of polyolefin not filled with COC to have a lower rigidity than that of the rod 6 in order to promote the mechanical strength and the tightness of the assembly between the push button 7 and said rod.
  • the push button 7 is made in a single piece based on a polyolefin material, in particular based on polyethylene, not loaded with COC to allow, in addition to the mechanical strength and sealing at the level of the mounting areas with the nozzle 14 and the rod 6, a more qualitative feel when pressing said push button.
  • the valve 8 of the rod 6 comprises a piston 19 which is coaxially mounted around said rod by presenting an outer sealing surface 20 which is in leaktight support in the internal chamber 2 to form between said piston and the feed orifice 3 a product metering chamber.
  • the piston 19 also has an inner sealing surface 21 which is operable by movement relative to at least one upstream orifice 11 of the dispensing path.
  • the piston 19 has a sleeve 22 for mounting slidably around the rod 6, said mounting being arranged to allow the reversible movement of the inner sealing surface 21 between a stable closed state and a forced open state of the communication of the distribution path with the internal chamber 2.
  • the actuation of the internal sealing surface 21 between its two states can be achieved by deformation of the piston 19.
  • the piston 19 can be made of a more flexible material than that of the rod 6 and of the body 1, for example of polyolefin in particular based on polyethylene not loaded with COC, in order to ensure the tightness of the internal chamber 2 at the level outer 20 and inner 21 sealing surfaces, while being able to benefit from a low coefficient of friction between said rod and said piston.
  • the pump comprises a spring 23 which is arranged in the internal chamber 2, between the rod 6 and the body 1, to return said rod to a stable state after its actuation on its dispensing stroke.
  • the rod 6 is equipped with an attached lower stop 24 on which the spring 23 bears.
  • a pre-compression spring 25 which is mounted in abutment between the sleeve 22 and a radial projection 26 of the rod 6, said pre-compression spring exerting a pressing force on the internal sealing surface 21 against the lower stop 24 in order to ensure the leaktight closure of the upstream orifices 11 between two distributions.
  • the bottom abutment 24 can be made of a material similar to that of the rod 6, that is to say based on a material comprising at least one polyolefin which is loaded with at least a COC.
  • the supply orifice 3 is surmounted by a seat 27 with respect to which an inlet valve in the form of a ball 28 is reversibly movable between an open state of said seat to allow the supply of the internal chamber 2 and a closed state of said seat.
  • the inlet valve and the seat 27 can be made of materials having different rigidities.
  • the seat 27 can be more flexible than the inlet valve, said seat and said valve possibly being made of polyolefin respectively unloaded and loaded with COC.
  • the seat 27 and the inlet valve can be made of polyolefin filled and unfilled with COC respectively.
  • the seat 27 is made in one piece with the body 1 from a polyolefin material, for example based on polypropylene, which is not loaded with COC.

Description

L'invention concerne un système de distribution d'un produit sous pression, ainsi qu'un flacon contenant un produit à distribuer sous pression au moyen d'un tel système de distribution.The invention relates to a system for dispensing a product under pressure, as well as a bottle containing a product to be dispensed under pressure by means of such a dispensing system.

Dans une application particulière, le produit est utilisé en cosmétique, en parfumerie ou pour des traitements pharmaceutiques, par exemple en étant sous la forme d'un liquide, d'une lotion, d'un gel ou d'une crème.In a particular application, the product is used in cosmetics, in perfumery or for pharmaceutical treatments, for example by being in the form of a liquid, a lotion, a gel or a cream.

On connaît des systèmes de distribution comprenant un corps pourvu notamment de moyens de prélèvement d'un produit conditionné dans un flacon pour alimenter une chambre interne dudit corps. En particulier, le système de distribution peut être sous la forme une pompe à actionnement manuel ou d'une valve permettant de restituer sous pression un produit conditionné dans un flacon.Dispensing systems are known comprising a body provided in particular with means for withdrawing a packaged product from a bottle in order to supply an internal chamber of said body. In particular, the dispensing system can be in the form of a manually actuated pump or a valve making it possible to release a product packaged in a bottle under pressure.

Un tel système de distribution comprend classiquement une tige sur laquelle est monté un bouton poussoir pour être actionnée réversiblement en translation. La tige est équipée d'un clapet qui est disposé dans la chambre interne entre un état stable de fermeture d'un chemin de distribution formé au travers de ladite tige et du bouton poussoir jusqu'à un orifice de distribution, et un état contraint par actionnement de la tige dans lequel ledit chemin de distribution est en communication avec la chambre interne pour la sortie sous pression du produit. Le bouton poussoir présente un logement dans lequel est montée une buse pourvue de l'orifice de distribution.Such a dispensing system conventionally comprises a rod on which is mounted a push button to be actuated reversibly in translation. The stem is equipped with a valve which is arranged in the internal chamber between a stable state of closure of a dispensing path formed through said stem and the push button as far as a dispensing orifice, and a state constrained by actuation of the rod in which said delivery path is in communication with the internal chamber for the outlet under pressure of the product. The push button has a housing in which is mounted a nozzle provided with the dispensing orifice.

Lors de son actionnement, la tige est soumise à des contraintes mécaniques importantes qui nécessitent l'utilisation d'un matériau dont la rigidité doit être suffisante pour éviter que, par déformation de ladite tige, le fonctionnement du système de distribution ne soit altéré. En particulier, de telles déformations peuvent conduire à une rupture de la tige ainsi qu'à une perte d'étanchéité du montage sur ladite tige du clapet et/ou du bouton poussoir, ces organes étant généralement réalisés dans un matériau plus souple que celui de la tige.During its actuation, the rod is subjected to high mechanical stresses which require the use of a material whose rigidity must be sufficient to prevent the operation of the distribution system from being altered by deformation of said rod. In particular, such deformations can lead to a breakage of the rod as well as to a loss of tightness of the assembly on the said rod of the valve and/or of the push button, these members being generally made of a more flexible material than that of the stem.

De la même manière, la buse est soumise à des efforts exercés par la pression du produit dans le chemin de distribution, ces efforts nécessitant l'utilisation d'un matériau dont la rigidité doit être suffisante pour éviter qu'elle soit expulsée du logement lors de la distribution.In the same way, the nozzle is subjected to forces exerted by the pressure of the product in the dispensing path, these forces requiring the use of a material whose rigidity must be sufficient to prevent it from being expelled from the housing during of distribution.

La tige et/ou la buse d'un système de distribution peut être réalisée à partir d'un polymère de la famille des polyacétals, notamment en polyoxyméthylène (POM), également connu sous le nom d'acétal. En effet, l'utilisation de ce type de matériau est satisfaisante notamment au niveau de ses propriétés mécaniques et chimiques, de glissement, de stabilité dimensionnelle, de faible reprise d'humidité.The stem and/or the nozzle of a dispensing system can be made from a polymer from the polyacetal family, in particular polyoxymethylene (POM), also known as acetal. Indeed, the use of this type of material is satisfactory in particular in terms of its mechanical and chemical properties, sliding, dimensional stability, low moisture uptake.

Toutefois, le POM est désormais reconnu comme pouvant présenter des risques toxicologiques, principalement en raison des dégagements de formaldéhyde lors de son injection à chaud dans les moules de fabrication, ainsi que lors de la destruction des systèmes de distribution en fin de vie.However, POM is now recognized as potentially presenting toxicological risks, mainly due to the release of formaldehyde during its hot injection into manufacturing molds, as well as during the destruction of end-of-life distribution systems.

Par ailleurs, diverses directives visent à réglementer, maîtriser et limiter la présence de substances potentiellement dangereuses pour la santé humaine dans les produits notamment cosmétiques, ce qui pousse les cosméticiens à limiter, voire supprimer de leurs formules les conservateurs qui sont souvent cause d'allergies ou d'intolérances.In addition, various directives aim to regulate, control and limit the presence of substances potentially dangerous to human health in products, in particular cosmetics, which pushes cosmeticians to limit or even eliminate from their formulas preservatives which are often the cause of allergies. or intolerances.

Les produits cosmétiques deviennent donc de plus en plus fragiles, étant facilement contaminables par les bactéries et les champignons et supportant difficilement notamment le contact de l'air qui peut provoquer par exemple un dessèchement ou une oxydation du produit.Cosmetic products therefore become increasingly fragile, being easily contaminated by bacteria and fungi and having difficulty withstanding in particular contact with air which can cause, for example, drying out or oxidation of the product.

Or, le POM présente une porosité qui s'avère trop importante pour pouvoir contribuer à la bonne conservation du produit avant sa distribution. En effet, l'air peut diffuser au travers du POM en quantité suffisante pour pouvoir contaminer et/ou oxyder le produit contenu dans la tige et dans la buse entre deux distributions, ledit produit pouvant également se dessécher par évaporation au travers desdites tige et buse en POM.However, the POM has a porosity which proves to be too high to be able to contribute to the good preservation of the product before its distribution. Indeed, the air can diffuse through the POM in sufficient quantity to be able to contaminate and/or oxidize the product contained in the rod and in the nozzle between two distributions, said product also being able to dry out by evaporation through said rod and nozzle in Pom.

En outre, en relation avec les évolutions réglementaires et de formulation des produits à distribuer, les industries pharmaceutique et cosmétique peuvent être amenées à stériliser leurs systèmes de distribution pour éviter toute contamination du produit préalablement à sa première distribution. En particulier, le moyen le plus rapide et le plus efficace pour stériliser un système de distribution d'un produit est de l'exposer à un rayonnement gamma ou beta, en ce qu'il permet notamment la stérilisation de volumes fermés.In addition, in relation to regulatory changes and changes in the formulation of the products to be distributed, the pharmaceutical and cosmetics industries may need to sterilize their distribution systems to avoid any contamination of the product prior to its first distribution. In particular, the fastest and most effective way to sterilize a system for dispensing a product is to expose it to gamma or beta radiation, in that it allows in particular the sterilization of closed volumes.

Toutefois, l'irradiation tend à modifier les propriétés du POM, notamment en le fragilisant mécaniquement et en le faisant changer d'apparence. Ainsi, les systèmes de distribution dont la tige et/ou la buse est réalisée à base de POM doivent être stérilisés sous gaz, en particulier sous oxyde d'éthylène, ce procédé s'avérant moins efficace et plus complexe à mettre en oeuvre industriellement que l'irradiation sous rayon gamma ou beta.However, irradiation tends to modify the properties of the POM, in particular by weakening it mechanically and causing it to change its appearance. Thus, the dispensing systems whose stem and/or nozzle is made from POM must be sterilized under gas, in particular under ethylene oxide, this process proving to be less effective and more complex to implement industrially than irradiation under gamma or beta rays.

L'invention vise à perfectionner l'art antérieur en proposant notamment un système de distribution dont la buse contribue à une bonne conservation du produit à distribuer, tout en présentant des propriétés toxicologiques, mécaniques et chimiques qui optimisent son utilisation.The invention aims to improve the prior art by proposing in particular a dispensing system whose nozzle contributes to good preservation of the product to be dispensed, while having toxicological, mechanical and chemical properties which optimize its use.

Par conséquent, l'utilisation combinée d'un système de distribution selon l'invention avec un flacon, éventuellement stérilisé, contentant un produit est particulièrement avantageuse, notamment en relation avec un produit dont la teneur en conservateurs est limitée voire nulle.Consequently, the combined use of a dispensing system according to the invention with a bottle, optionally sterilized, containing a product is particularly advantageous, in particular in relation to a product whose preservative content is limited or even zero.

A cet effet, selon un premier aspect, l'invention propose un système de distribution d'un produit sous pression comprenant un corps équipé de moyens permettant l'alimentation d'une chambre interne dudit corps en produit provenant d'une source, ledit système comprenant également une tige sur laquelle est monté un bouton poussoir pour être actionnée réversiblement en translation dans ledit corps, ladite tige étant équipée d'un clapet qui est disposé dans la chambre interne en présentant un état stable de fermeture d'un chemin de distribution formé au travers de la tige et du bouton poussoir jusqu'à un orifice de distribution, et un état contraint par actionnement de la tige dans lequel ledit chemin de distribution est en communication avec la chambre interne, ledit bouton poussoir présentant un logement dans lequel est montée une buse pourvue de l'orifice de distribution, ladite buse étant réalisée à base d'un matériau comprenant au moins une polyoléfine qui est chargée avec au moins un copolymère d'oléfine cyclique COC, la tige étant réalisée à base d'un matériau comprenant au moins une polyoléfine qui est chargée avec au moins un COC.To this end, according to a first aspect, the invention proposes a system for dispensing a pressurized product comprising a body equipped with means allowing the supply of an internal chamber of said body with product coming from a source, said system also comprising a rod on which is mounted a push button to be actuated reversibly in translation in said body, said rod being equipped with a valve which is arranged in the internal chamber while presenting a stable state of closure of a dispensing path formed through the rod and the push button to a dispensing orifice, and a constrained state by actuation of the rod in which said dispensing path is in communication with the internal chamber, said push button having a housing in which is mounted a nozzle provided with the dispensing orifice, said nozzle being made from a material comprising at least one polyolefin which is filled with at least one COC cyclic olefin copolymer, the stem being made from a material comprising at least one polyolefin which is loaded with at least one COC.

Selon un deuxième aspect, l'invention propose un flacon comprenant un col sur lequel le corps d'un tel système de distribution est associé de sorte à permettre l'alimentation de la chambre interne en produit.According to a second aspect, the invention proposes a bottle comprising a neck on which the body of such a dispensing system is associated so as to allow the internal chamber to be supplied with product.

D'autres objets et avantages de l'invention apparaîtront dans la description qui suit, faite en référence à la figure annexée représentant en coupe longitudinale partielle un système de distribution selon un mode de réalisation de l'invention.Other objects and advantages of the invention will appear in the description which follows, made with reference to the appended figure representing in partial longitudinal section a distribution system according to one embodiment of the invention.

Dans la description, les termes de positionnement dans l'espace sont pris en référence à la position du système de distribution représenté sur la figure.In the description, the terms of positioning in space are taken with reference to the position of the distribution system represented in the figure.

On décrit ci-dessous un système de distribution à actionnement manuel pour permettre la distribution d'un produit sous pression, par exemple sous la forme d'un aérosol, d'une noisette ou d'un flot continu selon la nature dudit produit. Dans un exemple d'application, le produit est sous la forme d'un liquide, d'une lotion, d'un gel ou d'une crème, pour un usage cosmétique, de parfumerie ou pour des traitements pharmaceutiques.A manually actuated dispensing system is described below to allow the dispensing of a pressurized product, for example in the form of an aerosol, a hazelnut or a continuous stream depending on the nature of said product. In one application example, the product is in the form of a liquid, a lotion, a gel or a cream, for cosmetic use, perfumery or for pharmaceutical treatments.

Le système de distribution comprend un corps 1 dans lequel est formée une chambre interne 2 qui est alimentée en produit provenant d'une source, ledit corps étant équipé de moyens permettant l'alimentation de ladite chambre interne. Pour ce faire, le corps 1 présente un orifice d'alimentation 3, par exemple équipé d'un tube plongeur 4, qui est destiné à être en communication avec l'intérieur d'un flacon de conditionnement du produit en vue de son prélèvement.The dispensing system comprises a body 1 in which is formed an internal chamber 2 which is supplied with product coming from a source, said body being equipped with means allowing the supply of said internal chamber. To do this, the body 1 has a supply orifice 3, for example equipped with a dip tube 4, which is intended to be in communication with the interior of a bottle for packaging the product with a view to its sampling.

Le corps 1 peut être équipé d'une frette périphérique 5 permettant le montage étanche dudit corps dans le col d'un flacon en mettant l'orifice d'alimentation 3 en communication avec le produit conditionné dans ledit flacon. Selon le mode de réalisation représenté, la frette 5 est déformable, par exemple en étant réalisée en aluminium, pour assurer son sertissage étanche autour du col. Toutefois, l'invention n'est pas limitée à un mode de réalisation particulier du montage du système de distribution sur le flacon, pouvant être notamment réalisé par vissage, soudage ou encliquetage étanche.The body 1 can be equipped with a peripheral hoop 5 allowing said body to be sealed in the neck of a bottle by placing the supply orifice 3 in communication with the product packaged in said bottle. According to the embodiment shown, hoop 5 is deformable, for example by being made of aluminum, to ensure its tight crimping around the neck. However, the invention is not limited to a particular embodiment of the mounting of the dispensing system on the bottle, which can in particular be achieved by screwing, welding or tight snap-fastening.

Le système de distribution comprend une tige 6 d'amenée du produit sous pression qui est disposée dans le corps 1 en étant actionnable réversiblement en translation sur une course respectivement de distribution et d'aspiration dudit produit par l'intermédiaire d'un bouton poussoir 7 qui est monté sur ladite tige.The dispensing system comprises a rod 6 for supplying the pressurized product which is arranged in the body 1 and can be actuated reversibly in translation over a stroke respectively for dispensing and sucking said product by means of a push button 7 which is mounted on said rod.

La tige 6 est équipée d'un clapet d'échappement 8 qui est disposé dans la chambre interne 2 en présentant un état stable de fermeture d'un chemin de distribution formé au travers de la tige 6 et du bouton poussoir 7 jusqu'à un orifice de distribution 9, et un état contraint par actionnement de ladite tige dans lequel ledit chemin de distribution est en communication avec ladite chambre interne.Stem 6 is fitted with an exhaust valve 8 which is placed in internal chamber 2 while presenting a stable state of closure of a dispensing path formed through stem 6 and push button 7 up to a dispensing orifice 9, and a constrained state by actuation of said rod in which said dispensing path is in communication with said internal chamber.

Ainsi, la distribution du produit est réalisée par appui digital sur le bouton poussoir 7 pour le déplacer axialement en actionnant la translation de la tige 6 afin d'acheminer le produit de la chambre interne 2 vers l'orifice de distribution 9 par lequel ledit produit sort.Thus, the distribution of the product is carried out by finger pressing the push button 7 to move it axially by actuating the translation of the rod 6 in order to convey the product from the internal chamber 2 towards the distribution orifice 9 through which said product spell.

Compte tenu des différentes contraintes qu'elle a à subir dans le cadre de son utilisation, la tige 6 est réalisée à base d'un matériau dont la rigidité est suffisante pour éviter que, par déformation de ladite tige, le fonctionnement du système de distribution ne soit altéré. En outre, le matériau de la tige 6 doit présenter des propriétés de glissement et de résistance à l'usure et au fluage satisfaisantes.Given the various constraints that it has to undergo in the context of its use, the rod 6 is made from a material whose rigidity is sufficient to prevent, by deformation of the said rod, the operation of the distribution system not be altered. In addition, the material of the rod 6 must have satisfactory sliding properties and resistance to wear and creep.

Pour ce faire, le matériau de la tige 6 comprend au moins une polyoléfine qui est chargée avec au moins un copolymère d'oléfine cyclique COC. En effet, bien que les polyoléfines présentent des caractéristiques mécaniques globalement insuffisantes pour réaliser la tige 6, leur renforcement avec du COC les rendent particulièrement adaptées à cette utilisation.To do this, the material of the upper 6 comprises at least one polyolefin which is filled with at least one cyclic olefin copolymer COC. Indeed, although the polyolefins have overall insufficient mechanical characteristics to produce the rod 6, their reinforcement with COC makes them particularly suitable for this use.

L'utilisation d'une polyoléfine chargée en COC permet également de contribuer à une bonne conservation du produit à distribuer. En effet, la porosité de ce matériau s'avère suffisamment faible pour empêcher l'air et l'eau de diffuser au travers de la tige 6, limitant ainsi la contamination, le dessèchement et/ou l'oxydation du produit contenu dans ladite tige entre deux distributions. Par ailleurs, une polyoléfine chargée en COC conserve ses propriétés, notamment mécaniques et d'apparence, sous irradiation par rayon gamma ou beta, ce qui permet d'envisager une stérilisation rapide et efficace du système de distribution.The use of a polyolefin loaded with COCs also makes it possible to contribute to good preservation of the product to be dispensed. Indeed, the porosity of this material proves to be low enough to prevent air and water from diffusing through the rod 6, thus limiting contamination, drying out and/or oxidation of the product contained in said rod between two distributions. Moreover, a polyolefin loaded with COC retains its properties, in particular mechanical and appearance properties, under irradiation by gamma or beta rays, which makes it possible to envisage rapid and effective sterilization of the dispensing system.

Par conséquent, un flacon selon l'invention est particulièrement avantageux pour distribuer un produit dont la teneur en conservateurs est limitée voire nulle et/ou devant être stérilisé.Consequently, a bottle according to the invention is particularly advantageous for dispensing a product whose preservative content is limited or even zero and/or which needs to be sterilized.

En outre, l'utilisation d'une polyoléfine chargée en COC permet de limiter les risques toxicologiques, notamment en ce qu'elle n'est pas susceptible de dégager de composant toxique lors de son chauffage ou de sa destruction en fin de vie. Par ailleurs, une tige 6 en polyoléfine chargée en COC peut être réalisée par moulage, à partir d'outillages et d'étapes d'injection classiquement utilisés pour les organes d'un système de distribution.In addition, the use of a polyolefin loaded with COC makes it possible to limit the toxicological risks, in particular in that it is not likely to release any toxic component during its heating or its destruction at the end of its life. Furthermore, a polyolefin rod 6 loaded with COC can be produced by molding, using tools and injection steps conventionally used for the components of a distribution system.

Selon une réalisation, un compromis optimal entre la conservation du produit à distribuer et les propriétés toxicologiques, mécaniques et chimiques de la tige 6 est obtenu en chargeant une polyoléfine avec un pourcentage en poids de COC qui est compris entre 10 et 50%. De façon avantageuse, la polyoléfine utilisée peut présenter de bonnes propriétés mécaniques intrinsèques, notamment en étant à base de polypropylène. Dans un exemple de réalisation, le polypropylène est un homopolymère avec un taux de COC de l'ordre de 30%, le COC pouvant être du type de ceux commercialisés sous la dénomination TOPAS par la société TOPAS ADVANCED POLYMERS.According to one embodiment, an optimal compromise between the conservation of the product to be dispensed and the toxicological, mechanical and chemical properties of the rod 6 is obtained by loading a polyolefin with a percentage by weight of COC which is between 10 and 50%. Advantageously, the polyolefin used can have good intrinsic mechanical properties, in particular by being based on polypropylene. In one embodiment, the polypropylene is a homopolymer with a COC content of the order of 30%, the COC possibly being of the type marketed under the name TOPAS by the company TOPAS ADVANCED POLYMERS.

En relation avec la figure jointe, on décrit ci-dessous un mode de réalisation d'une pompe de distribution agencée pour restituer un produit liquide sous forme d'aérosol. Toutefois, l'invention n'est pas limitée à un type de système de distribution particulier, ni à une forme de distribution particulière.In relation to the attached figure, an embodiment of a dispensing pump arranged to deliver a liquid product in aerosol form is described below. However, the invention is not limited to a particular type of distribution system, nor to a particular form of distribution.

Le chemin de distribution passe par un canal interne 10 formé dans la tige 6, ledit canal étant en communication avec deux orifices amont radiaux 11 et débouchant dans l'extrémité supérieure de ladite tige. Le bouton poussoir 7 présente un puits 12 qui est monté autour de l'extrémité supérieure de la tige 6 afin de faire passer le chemin de distribution par le canal interne 10 et ledit puits.The distribution path passes through an internal channel 10 formed in stem 6, said channel being in communication with two radial upstream orifices 11 and opening into the upper end of said stem. The push button 7 has a well 12 which is mounted around the upper end of the rod 6 in order to pass the dispensing path through the internal channel 10 and said well.

Le bouton poussoir 7 présente un logement 13 dans lequel débouche le chemin de distribution, une buse 14 pourvue de l'orifice de distribution 9 étant montée dans ledit logement. La buse 14 est en communication avec le puits de montage 12 par l'intermédiaire d'un canal 15 prévu dans le bouton poussoir 7, le chemin de distribution passant par ledit canal.The push button 7 has a housing 13 into which the dispensing path opens, a nozzle 14 provided with the dispensing orifice 9 being mounted in said housing. The nozzle 14 is in communication with the mounting well 12 via a channel 15 provided in the push button 7, the dispensing path passing through said channel.

Selon le mode de réalisation représenté, le chemin de distribution débouche dans une chambre tourbillonnaire 16 qui est formée entre la buse 14 et une portée 17 du logement 13, ladite chambre tourbillonnaire étant pourvue de l'orifice de distribution 9. Cette réalisation permet de faire tourner très rapidement le produit liquide dans la chambre tourbillonnaire 16 pour restituer ledit produit sous forme d'aérosol au travers de l'orifice de distribution 9. En variante, notamment dans le cas d'un produit plus visqueux, la buse 14 peut être sous la forme d'un tube de prolongement.According to the embodiment shown, the distribution path opens into a swirl chamber 16 which is formed between the nozzle 14 and a bearing surface 17 of the housing 13, said swirl chamber being provided with the dispensing orifice 9. This embodiment makes it possible to very quickly turn the liquid product in the swirl chamber 16 to restore said product in the form of an aerosol through the dispensing orifice 9. As a variant, in particular in the case of a more viscous product, the nozzle 14 can be under the shape of an extension tube.

Compte tenu des efforts exercés par la pression du produit dans le chemin de distribution, notamment de l'ordre de 5 à 7 bars, il est nécessaire d'assurer la tenue mécanique du montage de la buse 14 et de la tige 6 dans le bouton poussoir 7. Pour ce faire, les montages sont réalisés par emmanchement, la buse 14 étant en outre équipée d'une saillie radiale 18 formant moyen d'harponnage dans le logement 13.Given the forces exerted by the pressure of the product in the distribution path, in particular of the order of 5 to 7 bars, it is necessary to ensure the mechanical strength of the assembly of the nozzle 14 and of the rod 6 in the button pusher 7. To do this, the assemblies are made by fitting, the nozzle 14 also being equipped with a radial projection 18 forming a harpooning means in the housing 13.

Pour éviter le risque d'expulsion de la buse 14 lors de la distribution, ladite buse est réalisée à base d'un matériau comprenant au moins une polyoléfine qui est chargée avec au moins un COC. En outre, le logement 13 peut être réalisé en polyoléfine non chargée en COC pour présenter une souplesse favorisant un bon harponnage de la saillie rigide 18.To avoid the risk of the nozzle 14 being expelled during dispensing, said nozzle is made from a material comprising at least one polyolefin which is loaded with at least one COC. In addition, the housing 13 can be made of polyolefin not loaded with COC to have a flexibility that promotes good harpooning of the rigid projection 18.

Par ailleurs, au moins le puits 12 peut être réalisé en polyoléfine non chargée en COC pour présenter une rigidité inférieure à celle de la tige 6 afin de favoriser la tenue mécanique et l'étanchéité du montage entre le bouton poussoir 7 et ladite tige.Furthermore, at least the well 12 can be made of polyolefin not filled with COC to have a lower rigidity than that of the rod 6 in order to promote the mechanical strength and the tightness of the assembly between the push button 7 and said rod.

De manière avantageuse, le bouton poussoir 7 est réalisé en une seule pièce à base d'un matériau en polyoléfine, notamment à base de polyéthylène, non chargée en COC pour permettre, outre la tenue mécanique et l'étanchéité au niveau des zones de montage avec la buse 14 et la tige 6, un toucher plus qualitatif lors de l'appui sur ledit bouton poussoir.Advantageously, the push button 7 is made in a single piece based on a polyolefin material, in particular based on polyethylene, not loaded with COC to allow, in addition to the mechanical strength and sealing at the level of the mounting areas with the nozzle 14 and the rod 6, a more qualitative feel when pressing said push button.

Dans le mode de réalisation représenté, le clapet 8 de la tige 6 comprend un piston 19 qui est monté coaxialement autour de ladite tige en présentant une portée d'étanchéité extérieure 20 qui est en appui étanche dans la chambre interne 2 pour former entre ledit piston et l'orifice d'alimentation 3 une chambre de dosage du produit. Le piston 19 présente également une portée d'étanchéité intérieure 21 qui est actionnable en déplacement par rapport à au moins un orifice amont 11 du chemin de distribution.In the embodiment shown, the valve 8 of the rod 6 comprises a piston 19 which is coaxially mounted around said rod by presenting an outer sealing surface 20 which is in leaktight support in the internal chamber 2 to form between said piston and the feed orifice 3 a product metering chamber. The piston 19 also has an inner sealing surface 21 which is operable by movement relative to at least one upstream orifice 11 of the dispensing path.

Le piston 19 présente un manchon 22 de montage en coulissement autour de la tige 6, ledit montage étant agencé pour permettre le déplacement réversible de la portée d'étanchéité intérieure 21 entre un état stable de fermeture et un état contraint d'ouverture de la communication du chemin de distribution avec la chambre interne 2. En variante non représentée, l'actionnement de la portée d'étanchéité intérieure 21 entre ses deux états peut être réalisé par déformation du piston 19.The piston 19 has a sleeve 22 for mounting slidably around the rod 6, said mounting being arranged to allow the reversible movement of the inner sealing surface 21 between a stable closed state and a forced open state of the communication of the distribution path with the internal chamber 2. In a variant not shown, the actuation of the internal sealing surface 21 between its two states can be achieved by deformation of the piston 19.

Le piston 19 peut être réalisé dans un matériau plus souple que celui de la tige 6 et du corps 1, par exemple en polyoléfine notamment à base de polyéthylène non chargée en COC, afin d'assurer l'étanchéité de la chambre interne 2 au niveau des portées d'étanchéité extérieure 20 et intérieure 21, tout en pouvant bénéficier d'un faible coefficient de frottement entre ladite tige et ledit piston.The piston 19 can be made of a more flexible material than that of the rod 6 and of the body 1, for example of polyolefin in particular based on polyethylene not loaded with COC, in order to ensure the tightness of the internal chamber 2 at the level outer 20 and inner 21 sealing surfaces, while being able to benefit from a low coefficient of friction between said rod and said piston.

La pompe comprend un ressort 23 qui est disposé dans la chambre interne 2, entre la tige 6 et le corps 1, pour rappeler ladite tige en état stable après son actionnement sur sa course de distribution. En particulier, la tige 6 est équipée d'une butée basse 24 rapportée sur laquelle le ressort 23 est en appui.The pump comprises a spring 23 which is arranged in the internal chamber 2, between the rod 6 and the body 1, to return said rod to a stable state after its actuation on its dispensing stroke. In particular, the rod 6 is equipped with an attached lower stop 24 on which the spring 23 bears.

En outre, le coulissement du piston 19 est contraint par un ressort de pré-compression 25 qui est monté en appui entre le manchon 22 et une saillie radiale 26 de la tige 6, ledit ressort de pré-compression exerçant un effort de plaquage de la portée d'étanchéité intérieure 21 contre la butée basse 24 afin d'assurer la fermeture étanche des orifices amont 11 entre deux distributions.In addition, the sliding of the piston 19 is constrained by a pre-compression spring 25 which is mounted in abutment between the sleeve 22 and a radial projection 26 of the rod 6, said pre-compression spring exerting a pressing force on the internal sealing surface 21 against the lower stop 24 in order to ensure the leaktight closure of the upstream orifices 11 between two distributions.

Pour présenter une résistance au fluage et aux contraintes mécaniques suffisantes, la butée basse 24 peut être réalisée dans un matériau analogue à celui de la tige 6, c'est-à-dire à base d'un matériau comprenant au moins une polyoléfine qui est chargée avec au moins un COC.To present resistance to creep and to sufficient mechanical stresses, the bottom abutment 24 can be made of a material similar to that of the rod 6, that is to say based on a material comprising at least one polyolefin which is loaded with at least a COC.

Par ailleurs, l'orifice d'alimentation 3 est surmonté d'un siège 27 par rapport auquel un clapet d'admission sous la forme d'une bille 28 est déplaçable réversiblement entre un état d'ouverture dudit siège pour permettre l'alimentation de la chambre interne 2 et un état de fermeture dudit siège.Furthermore, the supply orifice 3 is surmounted by a seat 27 with respect to which an inlet valve in the form of a ball 28 is reversibly movable between an open state of said seat to allow the supply of the internal chamber 2 and a closed state of said seat.

Pour permettre une étanchéité optimale en état de fermeture, le clapet d'admission et le siège 27 peuvent être réalisés dans des matériaux présentant des rigidités différentes. Par exemple, le siège 27 peut être plus souple que le clapet d'admission, ledit siège et ledit clapet pouvant être réalisés en polyoléfine respectivement non chargée et chargée en COC. En variante, le siège 27 et le clapet d'admission peuvent être réalisés en polyoléfine respectivement chargée et non chargée en COCTo allow optimum sealing in the closed state, the inlet valve and the seat 27 can be made of materials having different rigidities. For example, the seat 27 can be more flexible than the inlet valve, said seat and said valve possibly being made of polyolefin respectively unloaded and loaded with COC. As a variant, the seat 27 and the inlet valve can be made of polyolefin filled and unfilled with COC respectively.

Selon une réalisation avantageuse, le siège 27 est réalisé en une seule pièce avec le corps 1 à partir d'un matériau en polyoléfine, par exemple à base de polypropylène, qui est non chargée en COC.According to an advantageous embodiment, the seat 27 is made in one piece with the body 1 from a polyolefin material, for example based on polypropylene, which is not loaded with COC.

Claims (8)

  1. System for dispensing a pressurised product comprising a body (1) equipped with means making it possible to supply an inner chamber (2) of said body with product coming from a source, said system also comprising a rod (6) on which is mounted a pushbutton (7) to be actuated reversibly in translation in said body, said rod being equipped with a valve (8) which is arranged in the inner chamber (2) having a stable state for closing a dispensing path formed through the rod (6) and the pushbutton (7) up to a dispensing orifice (9), and a state constrained by actuation of the rod (6) wherein said dispensing path is in communication with the inner chamber (2), said pushbutton (7) having a housing (13) in which is mounted a nozzle (14) provided with the dispensing orifice (9), said system being characterised in that the nozzle (14) is made of a material comprising at least one polyolefin which is loaded with at least one cyclic olefin copolymer COC, the rod (6) being made of a material comprising at least one polyolefin which is loaded with at least one COC.
  2. Dispensing system according to the preceding claim, characterised in that the rod (6) has an inner channel (10) which opens into an upper end of said rod, the pushbutton (7) having a well (12) which is mounted around said upper end to form the dispensing path passing through said inner channel and said well, at least said well being made of non- COC loaded polyolefin.
  3. Dispensing system according to any one of claims 1 to 2, characterised in that the valve (8) comprises a piston (19) which is mounted around the rod (6), said piston having an outer sealing surface (20) which is born in the inner chamber (2) and an inner sealing surface (21) which can be actuated between a stable closing state and a constrained opening state of the communication of said dispensing path with the inner chamber (2), said piston being made of non-loaded COC polyolefin.
  4. Dispensing system according to claim 3, characterised in that the piston (19) has a sleeve (22) for mounting around the rod (6), said mounting being arranged to make it possible for the reversible movement of the inner sealing surface (21) between the closing and opening states thereof.
  5. Dispensing system according to any one of claims 1 to 4, characterised in that a spring (23) is arranged between the rod (6) and the body (1) to return said rod into the stable state after the actuation thereof over a dispensing course, said rod being equipped with a low abutment (24) returned on which said spring is born, said abutment being made based on a material comprising at least one polyolefin which is loaded with at least one cyclic olefin copolymer COC.
  6. Dispensing system according to any one of claims 1 to 5, characterised in that the body (1) has an orifice (3) for supplying the inner chamber (2), said orifice being equipped with a valve (28) which can be reversibly moved between an opening state and a closing state of a seat (27) of said orifice, one of said valve and at least said seat being made of a material comprising at least one polyolefin which is loaded with at least one cyclic olefin copolymer COC, the other being made of non- COC loaded polyolefin.
  7. Dispensing system according to any one of claims 1 to 6, characterised in that said housing (13) of the pushbutton (7) is made of a non-loaded COC polyolefin.
  8. Vial containing a product to be dispensed under pressure, said vial comprising a neck on which the body (1) of a dispensing system according to any one of claims 1 to 7 is associated so as to make it possible to supply the inner chamber (2) with product.
EP18158045.7A 2013-10-15 2014-10-03 System for dispensing a fluid product Active EP3363544B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1360024A FR3011830B1 (en) 2013-10-15 2013-10-15 SYSTEM FOR DISTRIBUTING A PRESSED PRODUCT
EP14787240.2A EP3057715B2 (en) 2013-10-15 2014-10-03 System for dispensing a pressurized product
PCT/FR2014/052516 WO2015055915A1 (en) 2013-10-15 2014-10-03 System for dispensing a pressurized product

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EP14787240.2A Division-Into EP3057715B2 (en) 2013-10-15 2014-10-03 System for dispensing a pressurized product

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EP3363544A1 EP3363544A1 (en) 2018-08-22
EP3363544B1 EP3363544B1 (en) 2020-04-01
EP3363544B2 true EP3363544B2 (en) 2023-08-09

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WO2022052463A1 (en) * 2020-09-08 2022-03-17 余姚市绿亚工具有限公司 Anti-pollution container and anti-pollution liquid pump thereof

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FR2521151A1 (en) † 1982-02-08 1983-08-12 Sandoz Sa CHARGED POLYOLEFIN CONTAINING STERILELY IMPROVED PHENOL AND PHOSPHORUS DERIVATIVE, AND PREPARATION THEREOF
US20020158150A1 (en) † 2000-06-12 2002-10-31 Hideo Matsugi Powder medicine multiple dose administration device
FR2848196A1 (en) † 2002-12-10 2004-06-11 Valois Sas Container/dispenser for fluid product, e.g. medication, has reservoir made from synthetic or plastic material

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FR2931136A1 (en) * 2008-05-14 2009-11-20 Rexam Dispensing Systems Sas PUSH BUTTON WITH CONVERGENT DISTRIBUTION CHANNELS
FR2971772B1 (en) * 2011-02-17 2013-03-22 Valois Sas DEVICE FOR DISPENSING FLUID PRODUCT.
FR2973786B1 (en) * 2011-04-06 2014-07-04 Valois Sas RING FOR DEVICE FOR DISPENSING FLUID.

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FR2521151A1 (en) † 1982-02-08 1983-08-12 Sandoz Sa CHARGED POLYOLEFIN CONTAINING STERILELY IMPROVED PHENOL AND PHOSPHORUS DERIVATIVE, AND PREPARATION THEREOF
US20020158150A1 (en) † 2000-06-12 2002-10-31 Hideo Matsugi Powder medicine multiple dose administration device
FR2848196A1 (en) † 2002-12-10 2004-06-11 Valois Sas Container/dispenser for fluid product, e.g. medication, has reservoir made from synthetic or plastic material

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EP3363544B1 (en) 2020-04-01
FR3011830B1 (en) 2015-10-23
EP3057715B1 (en) 2018-06-27
EP3057715B2 (en) 2023-01-11
EP3363544A1 (en) 2018-08-22
WO2015055915A1 (en) 2015-04-23
ES2682682T5 (en) 2023-05-26
FR3011830A1 (en) 2015-04-17
ES2682682T3 (en) 2018-09-21
EP3057715A1 (en) 2016-08-24

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