EP0995697B1 - Kügelförmiger Aerosolbehälter aus Kunststoff - Google Patents

Kügelförmiger Aerosolbehälter aus Kunststoff Download PDF

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Publication number
EP0995697B1
EP0995697B1 EP99402295A EP99402295A EP0995697B1 EP 0995697 B1 EP0995697 B1 EP 0995697B1 EP 99402295 A EP99402295 A EP 99402295A EP 99402295 A EP99402295 A EP 99402295A EP 0995697 B1 EP0995697 B1 EP 0995697B1
Authority
EP
European Patent Office
Prior art keywords
reservoir
aerosol dispenser
tank
dispenser according
neck
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
Application number
EP99402295A
Other languages
English (en)
French (fr)
Other versions
EP0995697A1 (de
Inventor
Pierre-André Lasserre
Gilles Baudin
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.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0995697A1 publication Critical patent/EP0995697A1/de
Application granted granted Critical
Publication of EP0995697B1 publication Critical patent/EP0995697B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/38—Details of the container body

Definitions

  • the invention relates to an aerosol dispenser according to the preamble of claim 1, comprising a reservoir intended for contain a liquid product to be dispensed using a propellant, the tank being equipped with a dispensing valve, actuatable by the user for ejection a dose of product.
  • a dispensing valve actuatable by the user for ejection a dose of product.
  • a distributor is also equipped, means for actuating the valve, for example a push button, connected to the valve and provided with a dispensing orifice, such as a spray nozzle.
  • the reservoir of such a distributor is of generally cylindrical shape, and its wall is made, in a conventional manner, of tinplate or aluminum mono-block.
  • a tank is provided with a neck on which is fixed a valve holder cup.
  • Metal tanks have the advantage of having good resistance at the pressure inside the tank, especially when the temperature ambient is excessively high, for example in direct sunlight.
  • metal tanks have the disadvantage that the product there content often exerts a corrosive action on its internal wall. For these reasons, it is necessary to apply an inert protective layer on the wall internal, for example a layer of varnish or a film of material thermoplastic.
  • an inert protective layer on the wall internal, for example a layer of varnish or a film of material thermoplastic.
  • tinplate tanks or tanks aluminum, their manufacture requires the installation of a tool of expensive production, their price being economically reasonable only because of the large number of units produced.
  • currently only cylindrical shapes or shapes with minor variations from to the cylindrical shape are industrially feasible.
  • the document FR-A-2 567 851 describes a plastic tank, intended to receive a load under pressure.
  • This plastic tank is in two parts, a first part forming the cylindrical side wall, and a second part formed by an attached bottom, connected to the cylindrical wall.
  • This assembly has the disadvantage that the connection area, to be waterproof, requires very precise adjustment of the two parts to be assembled, this which is difficult to achieve by current molding techniques employed.
  • such an assembly area always constitutes a place fragile, which is all the more annoying as the tank must resist pressures high internal.
  • thermoplastic material for a distributor aerosol produced by blowing a preform of thermoplastic material.
  • tank made of thermoplastic material is described, for example, in the document FR-A-2 724 588.
  • This document offers a wide variety of materials thermoplastics, in particular polyethylene terephthalate or polyethylene naphthalate.
  • thermoplastic material certainly has many advantages over metal tanks of the kind mentioned above.
  • the first problem of a technical nature, consists in ensuring sufficient strength, without showing deformations or cracks, in particular at high temperatures, for example of the order of 70 ° C. or 80 ° C. Temperatures of this order of magnitude can be encountered, for example, in a car parked in direct sunlight.
  • thermoplastic materials when exposed to such temperatures, show a significant softening, which makes them unusable for the manufacture of tanks which must withstand, in practice, internal pressures of the '' order of 1,8 ⁇ 10 5 to 10 ⁇ 10 5 Pa.
  • European patent application EP 873 946 describes an aerosol container in the form substantially cylindrical, the body of which is made of a compound having a glass transition temperature between 74 ° C and 100 ° C.
  • the invention relates to an aerosol dispenser for dispensing a produced using a propellant gas, comprising a reservoir having substantially the shape of a sphere, this reservoir being provided with an opening on which is mounted a distribution valve, said reservoir being formed of a material thermoplastic with a glass transition temperature above 80 ° C.
  • reservoir having substantially the shape of a sphere is meant a reservoir, the body of which has substantially no portion, and in particular no middle portion, having a cylindrical, frustoconical or concave.
  • a material is chosen whose glass transition temperature is greater than about 105 ° C, and more particularly equal to or greater than about 115 ° C.
  • the opening of the reservoir is delimited by the free edge of a neck, said neck comprising a crimping bead for fixing a cup supporting said dispensing valve. It is possible, however, to use a tank without neck. In this case, in the opening can be fixed a valve whose body is made of elastomer. Such a valve to be mounted on a container without a neck is described, for example, in documents FR-A-2,741,933 and FR-A-2,757,488.
  • the reservoir has, substantially opposite to the opening, a bottom, capable of allowing the stable placement of said dispenser on a substantially flat surface.
  • the bottom is formed by an annular bead.
  • the distributor tank is formed a wall (excluding neck and bottom) whose thickness is between 0.15 mm and 0.5 mm. This thickness is sufficient to be able to condition a product to the interior of the tank and a propellant gas, in particular a propellant gas liquefiable, and in particular a propellant gas such as isobutane, butane, pentane or isopentane or a mixture thereof. With such a thickness, we minimize consumption of raw material during the manufacture of the tank.
  • the reservoir has a volume of between 50 cm 3 and 280 cm 3 .
  • the reservoir is transparent or translucent. This allows you to view the degree of filling of product in the tank.
  • blow-stretch process a parison of appropriate shape.
  • a blow-stretch process is described, by example, in document FR-A-2 386 407.
  • the aerosol dispenser which has just been described can be used, in particular, for the packaging and distribution of cosmetic products in spray form or of foam.
  • a distributor designated in its together by the reference 1.
  • a tank 2 of form substantially spherical with longitudinal axis X, carrying an open neck 4 of shape cylindrical. It is understood that the sphere may have a slightly flattened or stretched along the X axis, which can be interesting for reasons aesthetics.
  • the reservoir contains a liquid product P, for example a hair conditioner, and a liquefiable gas such as a propane / butane mixture.
  • a liquid product P for example a hair conditioner
  • a liquefiable gas such as a propane / butane mixture.
  • the opening formed at free end of the neck 4 has a bead 6 on which is fixed, by crimping, a valve holder cup 8.
  • the valve holder cup 8 is made of metal.
  • an annular seal 10 made of elastomeric material is interposed between the bead 6 and the cup 8.
  • the body 16 of a dispensing valve In the center of the cup 8 is mounted, so conventional, the body 16 of a dispensing valve.
  • the lower end of this valve is connected to a dip tube 18, extending substantially to the bottom 22 tank 2.
  • a push button 24 provided for actuating the valve and provided with a spray nozzle 26 for dispensing the product under spray form of fine droplets.
  • the push button is protected by a removable protective cover 12, the lateral cylindrical wall 13 has a latching bead 14, allowing the snap-fitting of the cover on the peripheral edge of the valve holder cup 8.
  • the reservoir 2 On the side opposite the neck 4, the reservoir 2 forms a base provided with a bead annular 20 in excess thickness, allowing stable positioning of the dispenser 1 on a work surface.
  • the center of the bead 20 is closed by the bottom 22, which bottom has a curved shape towards the inside of the tank.
  • the tank 2 is transparent, allowing to visualize the degree of filling of the tank.
  • the reservoir 2 including the neck 4 and the base 20, consists of a copolymer thermoplastic, formed from polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), the molar ratio of the PET / PEN units in said copolymer being 10/90.
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • This copolymer has a temperature of glass transition of 115 ° C.
  • the tank 2 is obtained by stretch-blowing according to well techniques known to those skilled in the art.
  • a substantially spherical reservoir having a volume of 214 ml.
  • This tank is transparent and has a weight of 19 g.
  • the wall has an average thickness of around 0.45 mm.
  • an amount of about 100 ml to 135 ml of a liquid capillary conditioner is introduced into the reservoir.
  • a partial vacuum of - 0.6 ⁇ 10 5 Pa the air is removed to the tank. Then we crimp the valve on the tank.
  • the invention allows a gain of about 25% to 30% in raw material, compared to a cylindrical container.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Medicinal Preparation (AREA)

Claims (8)

  1. Aerosolspender (1) für die Abgabe eines Produkts (P) mit Hilfe von Treibgas, umfassend einen Behälter (2), der mit einer Öffnung versehen ist, auf der ein Abgabeventil (16) montiert ist, wobei dieser Behälter aus einem Thermoplast geformt ist, dessen Glasübergangstemperatur höher als 80°C ist, wobei der Behälter auf der der Öffnung entgegengesetzten Seite einen Boden (22) aufweist, der geeignet ist, das stabile Aufsetzen des Spenders auf eine im wesentlichen ebene Fläche zu gestatten, dadurch gekennzeichnet, daß der Behälter zwischen der Öffnung und dem Boden im wesentlichen die Form einer Kugel hat.
  2. Aerosolspender nach Anspruch 1, dadurch gekennzeichnet, daß die Glasübergangstemperatur des Thermoplasts höher als 105°C und vorzugsweise mindestens gleich oder höher als 115°C ist.
  3. Spender nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Thermoplast ein Copolymer aus Polyethylenterephtalat (PET) und Polyethylennaphtalat (PEN) enthält, wobei das Molverhältnis von PET/PEN in diesem Copolymer 10/90 beträgt.
  4. Aeorosolspender nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Öffnung durch den freien Rand eines Halses (4) begrenzt ist, wobei dieser freie Hals einen Verfalzungswulst (6) für die Befestigung eines das Abgabeventil tragenden Napfes aufweist.
  5. Aerosolspender nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Boden von einem ringförmigen Wulst (20) gebildet ist.
  6. Aerosolspender nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Behälter durch Streckblasen eines Vorformlings erhalten wird.
  7. Aerosolspender nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Behälter (außer Hals und Boden) von einer Wand gebildet ist, deren Dicke zwischen 0,15 mm und 0,5 mm beträgt.
  8. Aerosolspender nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er ein Volumen zwischen 50 cm3 und 280 cm3 aufweist.
EP99402295A 1998-10-06 1999-09-20 Kügelförmiger Aerosolbehälter aus Kunststoff Expired - Lifetime EP0995697B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9812494A FR2784081B1 (fr) 1998-10-06 1998-10-06 Distributeur aerosol comportant un reservoir spherique en matiere plastique
FR9812494 1998-10-06

Publications (2)

Publication Number Publication Date
EP0995697A1 EP0995697A1 (de) 2000-04-26
EP0995697B1 true EP0995697B1 (de) 2004-12-01

Family

ID=9531239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99402295A Expired - Lifetime EP0995697B1 (de) 1998-10-06 1999-09-20 Kügelförmiger Aerosolbehälter aus Kunststoff

Country Status (7)

Country Link
EP (1) EP0995697B1 (de)
JP (2) JP3667572B2 (de)
AT (1) ATE283810T1 (de)
CA (1) CA2284394C (de)
DE (1) DE69922320T2 (de)
ES (1) ES2234223T3 (de)
FR (1) FR2784081B1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2877927B1 (fr) * 2004-11-16 2007-01-26 Oreal Dispositif pressurise pour le coiffage des fibres capilaires et utilisation d'un tel dispositif pour la mise en forme et/ou le maintien de la coiffure.
FR2877926B1 (fr) * 2004-11-16 2007-01-26 Oreal Dispositif pressurise pour le coiffage des fibres capillaires et utilisation d'un tel dispositif pour la mise en forme et/ou le soin des fibres capillaires.
DE102005002444A1 (de) * 2005-01-19 2006-07-27 Wella Ag Behälter mit einem Ventil
EP2407145A1 (de) * 2010-07-13 2012-01-18 The Procter & Gamble Company Aerosolhaarsprayprodukt zum Stylen und/oder Formen von Haar
EP2407144A1 (de) * 2010-07-13 2012-01-18 The Procter & Gamble Company Aerosolhaarsprayprodukt zum Stylen und/oder Formen von Haar
EP2570190A1 (de) 2011-09-15 2013-03-20 Braun GmbH Sprühdüse zum Abgeben einer Flüssigkeit und Sprüheinrichtung, die eine solche Sprühdüse umfasst
CH706041A1 (de) * 2012-01-27 2013-07-31 Alpla Werke Druckbehälter.
EP2919746B1 (de) 2013-06-28 2019-05-29 The Procter and Gamble Company Aerosolhaarsprayprodukt mit sprühvorrichtung
CN107666898B (zh) 2015-06-01 2021-06-01 宝洁公司 包括喷洒装置的气溶胶发胶产品
US12128118B2 (en) 2021-07-29 2024-10-29 The Procter & Gamble Company Aerosol dispenser containing a hairspray composition and a nitrogen propellant

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125470A (en) 1977-04-06 1978-11-01 Du Pont Production of thermoplastic resin aerosol container made by using molded preform
FR2567851B1 (fr) 1984-07-17 1987-03-20 Oreal Recipient en matiere plastique comportant un fond rapporte muni d'un raidisseur
GB8827898D0 (en) * 1988-11-30 1989-01-05 Hoechst Celanese Plastics Ltd Aerosol container base of plastics
GB8917171D0 (en) * 1989-07-27 1989-09-13 Hoechst Celanese Plastics Ltd Aerosol container top of plastics
FR2724588B1 (fr) * 1994-09-15 1996-12-20 Cebal Distributeur aerosol en matiere plastique et a fond renforce, procede de fabrication
JPH0986528A (ja) * 1995-09-22 1997-03-31 Mitsubishi Plastics Ind Ltd 自立型ボトル
FR2741933B1 (fr) 1995-11-30 1998-01-02 Oreal Valve pour dispositif de conditionnement et de distribution d'un liquide sous pression, et dispositif ainsi equipe
JPH09194701A (ja) * 1996-01-11 1997-07-29 Nippon Ester Co Ltd ポリエステル樹脂組成物及びその製造法
EP0961731B1 (de) * 1996-07-05 2004-01-02 Wella Aktiengesellschaft Kunststoffhohlkörper mit hoher chemischer beständigkeit
FR2757488B1 (fr) 1996-12-24 1999-01-22 Oreal Valve pour dispositif de conditionnement et de distribution d'un liquide sous pression, et dispositif ainsi equipe
JP3807568B2 (ja) * 1997-04-24 2006-08-09 東洋エアゾール工業株式会社 エアゾール容器

Also Published As

Publication number Publication date
CA2284394C (fr) 2005-03-08
JP2005178910A (ja) 2005-07-07
JP3667572B2 (ja) 2005-07-06
CA2284394A1 (fr) 2000-04-06
ATE283810T1 (de) 2004-12-15
JP2000109149A (ja) 2000-04-18
FR2784081A1 (fr) 2000-04-07
FR2784081B1 (fr) 2000-12-01
EP0995697A1 (de) 2000-04-26
ES2234223T3 (es) 2005-06-16
DE69922320T2 (de) 2005-12-15
DE69922320D1 (de) 2005-01-05

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