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WO2011088092A1 - Récipient en plastique pour aérosol doté de pieds de base - Google Patents

Récipient en plastique pour aérosol doté de pieds de base Download PDF

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Publication number
WO2011088092A1
WO2011088092A1 PCT/US2011/020953 US2011020953W WO2011088092A1 WO 2011088092 A1 WO2011088092 A1 WO 2011088092A1 US 2011020953 W US2011020953 W US 2011020953W WO 2011088092 A1 WO2011088092 A1 WO 2011088092A1
Authority
WO
WIPO (PCT)
Prior art keywords
main body
aerosol container
body portion
plastic
base portion
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.)
Ceased
Application number
PCT/US2011/020953
Other languages
English (en)
Inventor
Tapan Y. Patel
Stephen R. Guerin
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.)
Graham Packaging Co LP
Original Assignee
Graham Packaging Co LP
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 Graham Packaging Co LP filed Critical Graham Packaging Co LP
Publication of WO2011088092A1 publication Critical patent/WO2011088092A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0261—Bottom construction
    • B65D1/0284—Bottom construction having a discontinuous contact surface, e.g. discrete feet
    • 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

  • This invention relates broadly to the field of containers that are adapted to hold highly pressurized contents, such as aerosol mixtures, and more particularly to a plastic aerosol container having a footed base portion that is adapted to offer maximum resistance to deformation at high internal pressures.
  • Aerosol containers have conventionally been fabricated from metal, and are conventionally formed as a cylindrical tube having upper and lower end closures.
  • the bottom end closure is typically shaped as a concave dome, and the upper end closure typically includes a manually actuatable valve for dispensing the pressurized aerosol contents of the container.
  • Metallic containers have certain inherent disadvantages, such as a tendency to rust over time and to scratch surfaces with which they may come into contact.
  • Aerosol containers commonly require internal pressures of the magnitude of 50-300 psi, which is significantly greater than pressures that are typically encountered in other packaging applications for which plastic material has been used, such as the packaging of carbonated beverages. Accordingly, design considerations for plastic aerosol containers are quite different than they are for lower pressure packaging applications such as plastic beverage containers.
  • a plastic aerosol container ideally should be constructed to minimize expansion of the side wall when it is fully pressurized. If the side wall is permitted to expand a significant amount, the container is difficult to convey during the manufacturing process, difficult to package in bulk quantities and is space inefficient in a retail facility. If significant deformation occurs in the base portion of the container, it may be unable to effectively support the container on a horizontal surface, both in the retail facility and in the household.
  • a plastic aerosol container includes a main body portion that is fabricated from a plastic material, and a base portion that is unitary with the main body portion and fabricated from the plastic material.
  • the base portion has a plurality of feet that are adapted to support the container on a horizontal surface, and at least a first rib that is positioned between adjacent feet.
  • the first rib has a substantially constant radius of curvature.
  • a plastic aerosol container includes a main body portion that is fabricated from a plastic material.
  • the main body portion has a longitudinal axis and a maximum transverse diameter.
  • the container further includes a base portion that is unitary with the main body portion and fabricated from the plastic material.
  • the base portion has a plurality of feet that are adapted to support the container on a horizontal surface, and at least a first rib that is positioned between adjacent feet.
  • the first rib has a radius of curvature, the radius of curvature having a ratio with respect to the maximum transverse diameter that is substantially within a range of about 0.20 to about 1.0.
  • a plastic aerosol container includes a main body portion that is fabricated from a plastic material, the main body portion having a longitudinal axis and a maximum transverse diameter and a base portion that is unitary with the main body portion and fabricated from the plastic material.
  • the base portion has a plurality of feet that are adapted to support the container on a horizontal surface, and at least a first rib that is positioned between adjacent feet.
  • the first rib has a substantially constant radius of curvature, the substantially constant radius of curvature having a ratio with respect to the maximum transverse diameter that is substantially within a range of about 0.20 to about 1.0.
  • the main body portion and the base portion define an interior space that is pressurized with an aerosol mixture at a pressure that is substantially within a range of about 50 psi to about 300 psi.
  • FIGURE 1 is a side elevational view of a plastic aerosol container that is constructed according to a preferred embodiment of the invention
  • FIGURE 2 is a bottom plan view of the plastic aerosol container that is shown in FIGURE 1 ;
  • FIGURE 3 is a cross-sectional view taken along lines 3-3 in FIGURE 2;
  • FIGURE 4 is a cross-sectional view taken along lines 4-4 in FIGURE 2;
  • FIGURE 5 is a fragmentary cross-sectional view of an aerosol valve assembly for the plastic aerosol container that is depicted in FIGURE 1.
  • a plastic aerosol container 10 that is constructed according to a preferred embodiment of the invention is preferably fabricated from a plastic material such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyamide (Nylon), or a blend containing some combination of the same from a plastic preform using a conventional blow molding process, such as the reheat stretch blow molding process.
  • a plastic material such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyamide (Nylon), or a blend containing some combination of the same from a plastic preform using a conventional blow molding process, such as the reheat stretch blow molding process.
  • plastic aerosol container 10 includes a main body portion 12 having a side wall 14 and a finish portion 16 having at least one thread 17 defined thereon.
  • Plastic aerosol container 10 further includes a bottom base portion 18 that is unitary with the main body portion 12, and that together with the main body portion 12 and the finish portion 16 defines an internal space 28.
  • Internal space 28 is preferably filled with a pressurized aerosol mixture 29 that is substantially within a range of about 50 psi to about 300 psi at room temperature, and more preferably within a range of about 100 psi to about 300 psi at room temperature.
  • Room temperature for purposes of this document is defined as a range that is substantially between about 63 degrees F to about 77 degrees F.
  • the container 10 further includes an aerosol valve assembly 40, shown in FIGURE 4, which is mounted in a pressure-sealed manner to the finish portion 16.
  • the aerosol mixture 29 preferably includes a propellant, which could be a liquefied gas propellant or a compressed or soluble gas propellant.
  • Liquefied gas propellants that could be used include hydrocarbon propellants such as propane, isobutene, normal butane, isopentane, normal pentane and dimethyl ether, and hydrofluorocarbon propellants such as difluoroethane (HFC- 152a) and tetrafluoroethane (HFC- 134a).
  • Compressed and soluble gas propellants that could be used include carbon dioxide (C02), nitrous oxide (N20), nitrogen (N2) and compressed air.
  • the plastic aerosol container 10 and its base portion 18 is accordingly constructed and arranged so that is capable of withstanding an internal pressure of the order of about 50 psi to about 300 psi at room temperature without undergoing significant deformation.
  • the plastic aerosol container 10 and the main body portion 12 preferably define a longitudinal axis 30, as is shown in FIGURE 1.
  • the main body portion 12 is preferably shaped so that it is substantially symmetrical about the longitudinal axis 30.
  • Base portion 18 preferably includes a plurality of support feet 20 that are adapted to support the plastic aerosol container 10 on a horizontal surface.
  • Base portion 18 also preferably includes at least a first rib 22 that is positioned between adjacent feet 20, as is shown in FIGURES 1 and 2.
  • each of the support feet 20 are substantially the same size and shape, and each of the ribs 22 are also substantially of the same size and shape.
  • Each of the support feet 20 are preferably substantially symmetrical with respect to an opposing support foot 20, and each of the ribs 22 are preferably substantially symmetrical with respect to an opposing rib 22.
  • the base portion 18 further preferably includes a central push-up portion 24 that is generally shaped as a concave dome having a radius of curvature R2.
  • Each of the ribs 22 are preferably shaped so as to have a substantially constant radius of curvature Ri, as is shown in FIGURE 3.
  • the plastic aerosol container 10 has a maximum transverse diameter DMAX- A ratio of the radius of curvature Ri with respect to the maximum transverse diameter DMAX is preferably substantially within a range of about 0.20 to about 1.0, more preferably substantially within a range of about 0.4 to about 0.7, and most preferably substantially within a range of about 0.45 to about 0.55.
  • each of the support feet 20 preferably includes a bottom surface 26 that is substantially flat and that is upwardly and inwardly inclined with respect to a horizontal plane at an angle ai when the plastic aerosol container 10 is in an unpressurized condition.
  • angle ai is preferably within a range of about 3° to about 15° and more preferably within a range of about 5° to about 10°.
  • bottom base portion is constructed so as to have a height Hp measured longitudinally from bottom surface 26 to the top of the central push-up portion 24.
  • the bottom surface 26 of each of the feet 20 is connected to an outer surface of the respective foot by a curved portion having a radius of curvature R 4 , and to the central push-up portion 24 by another curved portion having a radius of curvature R5.
  • Each of the ribs 22 is preferably shaped so that its uppermost portion forms a smooth transition or tangent with respect to the outer surface of the side wall 14 of the main body portion 12.
  • both the ribs 22 and the support feet 20 are constructed to have a side wall thickness that is substantially greater than the typical side wall thickness that is used, for example, in plastic containers for packaging carbonated beverages.
  • the ribs 22 are constructed so as to have an average thickness that is substantially within a range of about 0.025 inch to about 0.120 inch, that more preferably is substantially within a range of about 0.030 inch to about 0.100 inch and that most preferably is substantially within a range of about 0.035 inch to about 0.095 inch.
  • the orientation of the plastic material can be measured by the stretch ratio, i.e. the thickness reduction between the plastic preform that is used during the blow molding process and the final product with respect to any one portion of the container 10.
  • the stretch ratio of the ribs 22 is preferably within a range of about 1.0 to about 10.0, more preferably within a range of about 1.2 to about 7.5 and most preferably within a range of about 1.3 to about 6.4.
  • the ribs 22 are constructed so that the thickness on a lower portion of the rib 22 is greater than the thickness on an upper portion of the rib 22, and so that the stretch ratio on the upper portion of the rib 22 is greater than it is at the lower portion of the rib 22.
  • the average thickness of the support feet 20 is preferably substantially within a range of about 0.150 inch to about 0.050 inch, more preferably substantially within a range of about 0.120 inch to about 0.040 inch, and most preferably substantially within a range of about 0.100 inch to about 0.030 inch.
  • the stretch ratio of each support foot 20 is preferably substantially within a range of about 1.0 to about 10.0, more preferably substantially within a range of about 1.1 to about 9.0, and most preferably substantially within a range of about 1.3 to about 7.6.
  • the aerosol valve assembly 40 is mounted to the finish portion 16 in a
  • Aerosol valve assembly 40 includes a dip tube 42 that is positioned within the internal space 28 of the container 10, and a main body portion 44.
  • a valve stem 46 is biased towards a closed position with respect to the main body portion 44 by means of a spring 48.
  • an orifice 50 is sealed by a gasket 52 so that no product from the internal space 28 is expelled under pressure through the internal passage 56 that is defined within the valve stem 46.
  • An additional conventional dispensing and directing cap may be mounted on the valve stem 46. When the valve stem 46 is depressed, the orifice 50 is opened and product from the internal space 28 is expelled under pressure through the internal passage 56 and through the dispensing and directing cap as an aerosol spray.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne un récipient en plastique pour aérosol comportant une partie corps principal et une partie base, les deux parties étant fabriquées à partir d'une matière plastique, telle qu'un poly(téréphtalate d'éthylène). La partie corps principal possède un axe longitudinal et un diamètre transversal maximal. La partie base est d'un seul tenant avec la partie corps principal et possède plusieurs pieds capables de supporter le récipient sur une surface horizontale. Une première nervure positionnée entre des pieds adjacents possède de préférence un rayon de courbure sensiblement constant qui présente un rapport, par rapport au diamètre transversal maximal, qui est essentiellement compris dans une plage entre environ 0,20 et environ 1,0. La partie corps principal et la partie base définissent un espace intérieur qui est mis sous pression avec un mélange d'aérosol à une pression qui est essentiellement comprise dans une plage entre environ 50 psi et environ 300 psi.
PCT/US2011/020953 2010-01-18 2011-01-12 Récipient en plastique pour aérosol doté de pieds de base Ceased WO2011088092A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/688,987 2010-01-18
US12/688,987 US20110174827A1 (en) 2010-01-18 2010-01-18 Plastic Aerosol Container With Footed Base

Publications (1)

Publication Number Publication Date
WO2011088092A1 true WO2011088092A1 (fr) 2011-07-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/020953 Ceased WO2011088092A1 (fr) 2010-01-18 2011-01-12 Récipient en plastique pour aérosol doté de pieds de base

Country Status (2)

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US (1) US20110174827A1 (fr)
WO (1) WO2011088092A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013110791A1 (fr) 2012-01-27 2013-08-01 Alpla Werke Alwin Lehner Gmbh & Co. Kg Récipient sous pression

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100303971A1 (en) * 2009-06-02 2010-12-02 Whitewave Services, Inc. Producing foam and dispersing creamer and flavor through packaging
US8935904B2 (en) 2011-02-22 2015-01-20 Graham Packaging Company, L.P. Method of stabilizing a plastic aerosol container
US9221596B2 (en) 2011-02-22 2015-12-29 Graham Packaging Company, L.P. Plastic aerosol container
MX351150B (es) * 2011-08-01 2017-10-04 Graham Packaging Co Recipiente plástico de aerosol y método de fabricación.
USD760590S1 (en) 2013-01-25 2016-07-05 S.C. Johnson & Son, Inc. Bottle
GB2523202B (en) * 2014-02-18 2017-09-06 Petainer Large Container Ip Ltd Plastic Aerosol Container
CH712902A1 (de) * 2016-09-12 2018-03-15 Alpla Werke Alwin Lehner Gmbh & Co Kg Innendruckbeständiger Kunststoffbehälter, insbesondere Kunststoff-Aerosolbehälter.
EP3403948B1 (fr) * 2017-05-16 2022-11-30 The Procter & Gamble Company Châssis pour distributeur aérosol, distributeur aérosol ayant un châssis et préforme de châssis pour un distributeur d'aérosol

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727783A (en) * 1971-06-15 1973-04-17 Du Pont Noneverting bottom for thermoplastic bottles
WO1993021073A1 (fr) * 1992-04-09 1993-10-28 Continental Pet Technologies, Inc. Recipient en plastique stable pour fluides sous pression
WO1997032708A1 (fr) * 1996-03-07 1997-09-12 Continental Pet Technologies, Inc. Recipient multicouche resistant aux temperatures et aux pressions elevees et son procede de production

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US3327907A (en) * 1965-06-09 1967-06-27 Meyers Frederick Charles Reinforced plastic containers for pressurized products
US3720339A (en) * 1970-09-24 1973-03-13 Monsanto Co Plastic container for pressurized materials-a
US3837527A (en) * 1973-03-16 1974-09-24 L Kutik Reinforced aerosol container
US6390326B1 (en) * 2000-09-29 2002-05-21 Peter Pei-Su Hung Pressure vessel and method manufacturing the same
MY151140A (en) * 2004-09-23 2014-04-30 Petapak Aerosol Internat Corp Plastic aerosol container and method of manufacturing same
US7448517B2 (en) * 2006-05-31 2008-11-11 The Clorox Company Compressed gas propellants in plastic aerosols
US20080003387A1 (en) * 2006-06-16 2008-01-03 Gene Michael Altonen Plastic pressurized dispenser

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727783A (en) * 1971-06-15 1973-04-17 Du Pont Noneverting bottom for thermoplastic bottles
WO1993021073A1 (fr) * 1992-04-09 1993-10-28 Continental Pet Technologies, Inc. Recipient en plastique stable pour fluides sous pression
WO1997032708A1 (fr) * 1996-03-07 1997-09-12 Continental Pet Technologies, Inc. Recipient multicouche resistant aux temperatures et aux pressions elevees et son procede de production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013110791A1 (fr) 2012-01-27 2013-08-01 Alpla Werke Alwin Lehner Gmbh & Co. Kg Récipient sous pression

Also Published As

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US20110174827A1 (en) 2011-07-21

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