EP0854785A1 - Recipients en polyolefine munis d'une couche protectrice exterieure de polyethylene - Google Patents

Recipients en polyolefine munis d'une couche protectrice exterieure de polyethylene

Info

Publication number
EP0854785A1
EP0854785A1 EP96935679A EP96935679A EP0854785A1 EP 0854785 A1 EP0854785 A1 EP 0854785A1 EP 96935679 A EP96935679 A EP 96935679A EP 96935679 A EP96935679 A EP 96935679A EP 0854785 A1 EP0854785 A1 EP 0854785A1
Authority
EP
European Patent Office
Prior art keywords
container
polyethylene
bottle
outside
coating
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.)
Withdrawn
Application number
EP96935679A
Other languages
German (de)
English (en)
Inventor
James Johansson
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance 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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP0854785A1 publication Critical patent/EP0854785A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/065—HDPE, i.e. high density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/043—HDPE, i.e. high density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/60—Bottles

Definitions

  • the present invention relates to a container of filled polyolefin and a method of producing the container.
  • Containers of the type described in the preamble to appended Claim 1 are commercially available and are employed for such purposes as packing and transporting foods.
  • the Tetra Box® container which is of substantially trapezoidal cross section, comprises a container bottom portion with an integral bottom and side walls and a substantially planar container upper portion (or lid) with a peripheral, downwardly directed lip or edge which, with tight fit, encloses the upper edges of the side walls, thus closing the container.
  • the material in both the upper portion of the container and its lower portion includes a propylene based polymer and a filler, preferably particulate calcium carbonate, which is admixed to the basic polymer compound for the purposes of imparting rigidification.
  • the upper and lower portions of the container are produced separately by heating and thermof orming of extruded, planar webs of the polymer/ filler mixture. From the thermoformed container portions, ready- filled consumer containers are thereafter produced in that the open container lower portions are filled with the pertinent product, for example butter, and are then sealed with the aid of the synchronously advanced and applied container upper portions (or lids).
  • the two mould halves are laterally displaced, with the severed hose section retained inside the mould cavity, and a nozzle is inserted through an aperture in the upper portion of the hose section, this nozzle being in communication with a compressed air source for blow moulding of the enclosed hose section using compressed air which is blown through the nozzle.
  • the mould halves are then separated and the blow moulded bottles are removed and transported with their associated cap closure arrangements to a filling station where the bottles are filled in a per se known manner with the relevant product, for example cooking oil, and are then sealed.
  • One object of the present invention is therefore to obviate the above- outlined problem in connection with the prior art containers.
  • a further object of the present invention is to realise an improved container of filled polyolefin plastic which may be transported using conventional, galvanised roller trolleys without the risk of being rendered useless or destroyed as a result of discoloration.
  • discoloration may occur because of a chemical reaction or inter-reaction between reactive or inter-reactive components in the material of the container proper and in the galvanised material in the roller trolleys, respectively.
  • the propylene based polymer in the container material includes at least one component, a stabiliser, of an "acidic” (low) pH
  • the galvanised material in the conventional roller trolleys includes at least one pH sensitive component, zinc oxide, which could therefore be dissolved by the "acidic" container component (the stabiliser) and cause a discoloration on the outside of the container when these components come into contact with one another, as is the case when chafing and rubbing between the containers and the trolley takes place.
  • Tests in accordance with the present invention have confirmed the presence of zinc oxide in the discoloration on the outsides of the container walls, even though the above-established working hypothesis need not necessarily be correct and /or complete for this reason alone in order to explain the entire mechanism operating behind the unwanted problem of discoloration.
  • the thickness - and thereby the weight - of the polyethylene coating may be very slight, but should not be less than approximately 5 per cent of the total thickness (or length, respectively) of the container, which has proved to be a practical lower limit.
  • a corresponding practical upper limit for the coating thickness and coating weight, respectively may be, according to the present invention, approximately 30 per cent calculated on the total wall thickness and weight, respectively, of the container.
  • the protective coating against discoloration should, as has already been mentioned, consist of polyethylene, and to this end one particularly preferred polyethylene coating according to the present invention is a coating of high density polyethylene (HDPE) which, even at very slight coating thicknesses, is of sufficient mechanical strength and stability to be able to withstand powerful external stresses at the same time as being sufficiently chemically inert so as not to react or inter-react with soluble discolorants such as zinc oxide which occur in conventional, galvanised roller trolleys.
  • the polyethylene coating should be applied on the outside of the container such that it covers and protects at least those parts of the container where the risk of chafing and rubbing during transport and handling is greatest.
  • the polyethylene coating is preferably applied according to the present invention in such a manner that it covers the entire outside of the container without interruption.
  • the container is in the form of a bottle.
  • the bottle according to this preferred embodiment of the present invention may have an integrated handle so as to facilitate handling of the bottle when in use.
  • Fig. 1 is a schematic cross section through a container according to one preferred embodiment of the present invention.
  • Figs. 2A - 2D schematically illustrate different sequences in the method of producing a container according to the invention.
  • Fig. 1 thus shows a schematic cross section of a container according to the present invention in the form of a bottle.
  • the bottle which has been given the generic reference numeral 10, is shown without cap closure means, or any suitable top closure, which does not form any germane part of the present invention and, for which reason, has been omitted from the body of this description for purposes of clarity.
  • Other parts and components which may normally occur in such bottles (such as handles, labels or other decorative artwork on the outside of the bottle) have been omitted for the same reason.
  • the wall and bottom material in the bottle 10 has a two-ply structure comprising, on the one hand, a relatively thicker layer 11 of filled polyolefin and, on the other hand, a relatively thinner coating 12 of polyethylene which is applied on the outside of the layer 11.
  • the relatively thicker layer 11 which constitutes the actual body of the bottle 10 here forms the inside of the bottle, while the relatively thinner coating 12 (which constitutes only a fraction of the total material thickness of the two- ply structure) forms the outside of the bottle 10.
  • the relationship between the thicknesses of the two material layers of the bottle, i.e. the layer 11 of filled polyolefin and the coating 12 of polyethylene, may vary within a broad range. However, the relationship is preferably chosen such that the thickness of the relatively thinner polyethylene coating constitutes between approximately 5 per cent and approximately 30 per cent of the total material thickness of the bottle 10 which, in itself, may be freely selected within broad outer limits. Examples of practical thicknesses for each respective material thickness may be approximately 30 ⁇ m for the polyethylene coating 12 and approximately 300 ⁇ m for the filled polyolefin layer 11, with total bottle thicknesses varying between approximately 200 ⁇ m and approximately 700 ⁇ m.
  • the outer polyethylene coating 12 should be applied in such a manner as to cover at least those parts of the outside of the bottle 10 which are most exposed to external stresses such as chafing and rubbing in connection with transport and similar handling.
  • the polyethylene coating 12 should therefore be applied on at least the lower, wider portion of the bottle 10 and up to the beginning of the upper portion tapering towards the neck of the bottle.
  • the preferably unbroken, continuous polyethylene coating 12 is ideally applied so as to cover the entire outside of the bottle 10, including the bottom of the bottle, as shown in Fig. 1.
  • the material in the body layer 11 of the bottle 10 should be a filled polyolefin, as in the previously described prior art bottles, and may, for example, be polyethylene or polypropylene.
  • the preferred polyolefin material is a propylene based polymer with an admixture of particulate filler, for example calcium carbonate (chalk).
  • the propylene based polymer may be a homopolymer or a copolymer and the expression employed "propylene based polymer" hence encompasses both homopolymers and copolymers of propylene.
  • the filled propylene based polymer includes the rigidifying particulate filler in a quantity which may vary between approximately 30 and approximately 60 per cent of the total weight of the filled propylene based polymer.
  • filler may vary and practically applicable fillers (apart from the above mentioned calcium carbonate or chalk) may be the conventionally accepted inorganic fillers such as clay, mica, talc etc.
  • the currently most preferred filler according to the present invention is, however, calcium carbonate which, apart from being readily available in abundance in nature, is also an economical starting material for the container according to the present invention.
  • the outer protective coating 12 should according to the invention, consist of polyethylene which is compatible with polyolefin in the body layer 11 of the bottle and effectively prevents dissolution of soluble discolorants of the type which occurs in conventional galvanised roller trolleys, for example zinc oxide.
  • One particularly preferred polyethylene for the protective coating 12 is high density polyethylene (HDPE) which, even at very slight coating thicknesses, has proved capable of withstanding outer mechanical stresses at the same time as the high density polyethylene in itself is sufficiently inert or chemically neutral so as not to be influenced by such discolorants.
  • HDPE high density polyethylene
  • Fig. 1 The bottle 10 shown by way of example in Fig. 1 is produced according to the invention in the manner schematically illustrated in Fig. 2.
  • Fig. 2 For purposes of clarity and in order to facihtate a comparison between Figs. 1 and 2, the same reference numerals as in Fig. 1 have been employed for corresponding or identical parts in Fig.2.
  • Fig. 2A schematically illustrates a first sequence in the production of a container or bottle 10 in the manner according to one preferred embodiment of the invention.
  • a first tubular film is co-extruded from a mixture of molten polyolefin and filler, together with a second tubular film from molten polyethylene for the formation of a hose or tube 14 of two-ply structure, with the film of filled polyolefin 11 (Fig. 1) on the inside of the tube or hose 14 and the film 12 (Fig. 1) of polyethylene on the outside of the hose.
  • the material in the mixture of molten polyolefin and filler may be a molten polyethylene or molten propylene based polymer with admixed particulate filler of conventional type, but is preferably a molten polypropylene in which particulate calcium carbonate is admixed as the filler in a quantity of between 30 and 60 per cent of the total weight of the mixture.
  • the material in the outer layer of molten polyethylene preferably consists of a high density polyethylene (HDPE).
  • HDPE high density polyethylene
  • the two mould halves 15, 15 which, in the illustrated sequence in Fig. 2A, are laterally spaced apart from one another, are laterally movable in relation to and together with one another and define between them, in the closed position (Fig. 2B), a bottle-shaped mould cavity 16 for receiving the hose 14.
  • a nozzle 17 in communication with a compressed air source P is inserted into the open upper end of the hose section 10' for the aspiration of air under pressure into the enclosed hose section.
  • compressed air is blown into the hose section 10' through the nozzle 17 sealingly abutting against the mould halves, the hose section 10' is expanded so that it fills out the whole of the bottle-shaped space or cavity 16 between the mould halves 15, 15.
  • bottles according to the invention may be employed for packing and transporting liquid foods using conventional distribution equipment, including galvanised so-called roller trolleys, with good protection afforded for the packed food and without the risk of being discoloured as a result of chafing or rubbing, as is the case in the conventional bottles consisting of filled polyolefin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Packages (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Wrappers (AREA)
  • Stackable Containers (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention porte sur des récipients en polyoléfine chargée et leur procédé de fabrication. Pour éviter la décoloration et la dégradation de la paroi extérieure des récipients due au frottement et à l'abrasion, pendant le transport, lorsqu'ils s'entrechoquent ou heurtent les chariots élévateurs à l'aide desquels ils sont empilés, lesdits récipients (10) sont revêtus d'une couche protectrice (12) de préférence sur la totalité de leur surface extérieure. Dans l'une des modes de réalisation préférées, les récipients (10) sont faits de polypropylène chargé et leur revêtement extérieur, de préférence, de polyéthylène haute densité (HDPE). L'épaisseur de la couche protectrice (12) extérieure peut varier et sera de préférence choisie pour que le poids de ladite couche (12) représente environ de 5 à 30 % du poids total du récipient (10).
EP96935679A 1995-10-11 1996-10-08 Recipients en polyolefine munis d'une couche protectrice exterieure de polyethylene Withdrawn EP0854785A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9503537A SE505366C2 (sv) 1995-10-11 1995-10-11 Formblåst flaska av polyolefin försedd med skyddsskikt av polyeten samt framställning därav
SE9503537 1995-10-11
PCT/SE1996/001270 WO1997013637A1 (fr) 1995-10-11 1996-10-08 Recipients en polyolefine munis d'une couche protectrice exterieure de polyethylene

Publications (1)

Publication Number Publication Date
EP0854785A1 true EP0854785A1 (fr) 1998-07-29

Family

ID=20399782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96935679A Withdrawn EP0854785A1 (fr) 1995-10-11 1996-10-08 Recipients en polyolefine munis d'une couche protectrice exterieure de polyethylene

Country Status (4)

Country Link
EP (1) EP0854785A1 (fr)
AU (1) AU7350396A (fr)
SE (1) SE505366C2 (fr)
WO (1) WO1997013637A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE518351C2 (sv) * 1998-05-22 2002-09-24 Tetra Laval Holdings & Finance Förpackningsmaterial och av materialet framställda förpackningar för ljuskänsliga produkter
SE0000160L (sv) * 2000-01-18 2001-07-19 Ecolean Ab Återanvändbar behållare för vätskeformiga produkter samt metod för framställning därav
SE519445C2 (sv) 2000-08-28 2003-02-25 Tetra Laval Holdings & Finance Förpackningslaminat innefattande stomskikt av papper eller kartong och ett mineralfyllt polyolefinskikt, samt därav framställd förpackningsbehållare
FR2814436B1 (fr) * 2000-09-25 2003-10-31 Oreal Article de conditionnement a rigidite axiale et resistance a la case ameliorees
FR2814435B1 (fr) * 2000-09-25 2002-12-20 Oreal Article de conditionnement a rigidite axiale et resistance a la casse ameliorees

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE643123A (fr) * 1963-01-31 1900-01-01
US3323889A (en) * 1963-04-16 1967-06-06 Owens Illinois Inc Method for increasing scratch resistance of a glass surface with a pyrolyzing treatment and a coating of an olefin polymer
WO1989007077A1 (fr) * 1983-03-18 1989-08-10 Sun Joseph Zu Film thermoretractable
US5071686A (en) * 1985-11-29 1991-12-10 Genske Roger P Films of polypropylene blends and polyethylene blends and articles made therewith
DE3744639A1 (de) * 1987-12-31 1989-07-13 Henkel Kgaa Hohlkoerper aus kunststoff mit einer glaenzenden aussenflaeche
US4880675A (en) * 1988-04-25 1989-11-14 Air Products And Chemicals, Inc. Hot-fillable plastic containers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9713637A1 *

Also Published As

Publication number Publication date
WO1997013637A1 (fr) 1997-04-17
AU7350396A (en) 1997-04-30
SE9503537L (sv) 1997-04-12
SE505366C2 (sv) 1997-08-18
SE9503537D0 (sv) 1995-10-11

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