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WO1998058790A1 - Procede de fabrication de contenants multicouches thermodurcis - Google Patents

Procede de fabrication de contenants multicouches thermodurcis Download PDF

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Publication number
WO1998058790A1
WO1998058790A1 PCT/EP1997/003255 EP9703255W WO9858790A1 WO 1998058790 A1 WO1998058790 A1 WO 1998058790A1 EP 9703255 W EP9703255 W EP 9703255W WO 9858790 A1 WO9858790 A1 WO 9858790A1
Authority
WO
WIPO (PCT)
Prior art keywords
preform
container
mould
nylon
stretch
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/EP1997/003255
Other languages
English (en)
Inventor
Jean-Pierre D'houndt
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.)
Schmalbach Lubeca PET Centre Technique et de Recherche SAS
Original Assignee
Schmalbach Lubeca PET Centre Technique et de Recherche SAS
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 Schmalbach Lubeca PET Centre Technique et de Recherche SAS filed Critical Schmalbach Lubeca PET Centre Technique et de Recherche SAS
Priority to PCT/EP1997/003255 priority Critical patent/WO1998058790A1/fr
Publication of WO1998058790A1 publication Critical patent/WO1998058790A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B29C49/22—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
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6418—Heating of preforms
    • B29C49/642—Heating of preforms and shrinking of the preform
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6472—Heating or cooling preforms, parisons or blown articles in several stages
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/786—Temperature
    • B29C2049/7864—Temperature of the mould
    • B29C2049/78645—Temperature of the mould characterised by temperature values or ranges
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3008—Preforms or parisons made of several components at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3012—Preforms or parisons made of several components at flange portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3016—Preforms or parisons made of several components at body portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/302—Preforms or parisons made of several components at bottom portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
    • B29C2949/3028—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
    • B29C2949/3028—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components
    • B29C2949/303—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components having more than three components
    • 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
    • B29C49/06—Injection blow-moulding
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02—Temperature
    • 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
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate

Definitions

  • Both documents concern multilayer containers which originate from a stretch-blowing process in a mould, in which process a preform of smaller size is expanded by pressure in a mould to achieve a bottle shaped container.
  • Figure 5 and Figure 4 of DE 32 01 986 gives an impression of possible shapes of a preform and a container.
  • a multilayer preform is also shown in a sectional view in Figure 2 of DE 37 37 291 (Owens Illinois) , the blown container from this preform is in full scale shown in Figure 1 of said document.
  • the multilayer structure of Figure 2 of said document comprises a central layer 13 of EVAL, having two tie-layers (Klebe lamb) , one on each side, which strengthens the cohesion and reduces delamination trend, which is inherent, if combining a EVAL-layer 13 of this prior art directly to a PET outer layer (items 11 and 12 on each side of the central layer 13 in said document) .
  • the process for manufacturing said multilayer container comprises the providing of a preform, which is stretch-blown.
  • the preform comprises a substantially Nylon containing layer as an inner layer and substantially polyester (PET) layers as outer layers; "inner and outer” being regarded with respect to a wall segment of the preform.
  • PET substantially polyester
  • claim 1 is to be understood as having at least one inner layer comprising said Nylon and at least one layer on each side (outer layers) of said inner Nylon layer.
  • the claim comprises a three-layer or a five-layer structure.
  • a three layer one layer being Nylon and two outer layers substantially comprising PET, in which understanding the two outer layers are the outside layer and the inside layer of the preform, later to define the outside surface and the inside surface of the blown bottle.
  • the amount of Nylon is kept below 10% of weight of the preform and the stretch-blowing according to the invention is provided by leaving the stretch-blown preform after the stretch-blow process at a hot inner surface of the mould to thereby heat set said multilayer container, which is after a cooling step taken out of the mould.
  • the amount of Nylon, which is a main factor in cost, but also a main factor in providing good gas barrier property and reduced permeability of gases (e. g. oxygen or C0 2 ) is kept at a low percentage, preferably between 4% and 6% of weight of the preform (claim 7) .
  • the heat setting occurs at a temperature of above 100°C, preferably between 130°C and 170°C (claim 8) for a stay time, which is sufficient to achieve increased barrier property and improved cohesion of the layer structure, which is no detrimental delamination trend. Visual crystallizing is substantially avoided, to keep the bottle clear. All this without increasing the cost due to a minimum amount of Nylon in the PET multilayer preform.
  • the stay time can be below lsec or above l,5sec, but depends on the machine speed for manufacturing the bottles (claim 6) and the temperature for the heat setting period.
  • the inventive concept of manuf cturing a bottle with low permeability rate avoids an increased percentage of Nylon, which would yield a reduction of permeability, but also would increase the delamination trend of the different layers.
  • the heat setting of the PET multilayer container with a Nylon inside layer as barrier layer reduces the permeability factor between about 30% to 40% as compared to a PET multilayer bottle containing the same Nylon layer in the same weight percentage, but having no heat setting phase during manufacture.
  • the percentage of used Nylon is reduced, achieving the same barrier effect, or if using the same percentage as in prior art, the barrier effect can according to the invention be increased without any detrimental consequences on the bottle cohesion and on the delamination trend.
  • the process can be a one-step blowing process (claim 1) or a two-step blowing process (claim 5) .
  • a first blowing is performed to shape an intermediate container and this intermediate container receives a heat treatment to shrink and is then blown in a second blowing process to arrive at the finally shaped container, which receives heat setting in the second mould.
  • the second mould of the second process is to be understood as the first and single mould of the one-step process of claim 1.
  • Heat setting in the two-step process is further improved by the intermediate heat treating to shrink the intermediate container from its intermediate size and thus in the process the heat setting following the second blow step can be shortened.
  • a thermally stable multilayer container which has an improved cohesion of layers (less delamination trend between layers) and an increased barrier property (less permeability for e.g. oxygen or CO2) .
  • the container is made according to the process of claim 1. It has a mouth portion which generally has a thread for attaching a cap. It has a body portion and a base portion on which the bottle is standing. Between the body portion and the mouth portion, there is an intermediate portion which generally is slanted to the inside to connect the broader body to the narrow mouth portion.
  • the heat treated (heat set) multilayer structure provides a good barrier property with low permeability for gases, although small amount of barrier material and small layer thickness of the barrier layer is used, still having good layer cohesion.
  • the process according to an example will have in a one step blow process the method steps of providing a preform of mainly PET outside and an inner Nylon layer for barrier purposes.
  • This preform is introduced into a mould, which cavity has the shape of the final bottle.
  • Pressure is introduced into the preform, to expand it and bring it into contact with the inside surface of the mould, which is heated to a temperature of 130°C.
  • the stretch blown preform will remain for a certain amount of time, called "stay time" at the mould wall to provide heat-setting of the multi layer structure, mainly in the wall portion of the bottle.
  • stay time After heat-setting, the bottle is quickly cooled down by an air stream to avoid deformation. After cooling down it is taken out of the mould, by opening the mould and the process achieves a finished mulilayer bottle with heat set characteristic.
  • a two-step blow process is used.
  • the preform with the multilayer structure and the Nylon barrier layer is introduced into a first mould and stretch blown to yield an intermediate container, which is larger than the final container.
  • the wall of the first preform is cold, in the example it has about 20°C.
  • a heat process effects shrinkage of the intermediate container, preferably in a recovery oven at 200 °C, which is substantially above the temperature which is used for the heat setting in the before mentioned one-step blow process. After bottle shrinkage in said recovery oven at 200°C the shrunk intermediate container is again blown in a second blow step in a second mould.
  • the final container is obtained and heat setting is provided at the inner surface of the second mould, by heating it to about 130°C before the PET is stretchblown against the wall. Since the bottle shrinkage in the recovery oven has already obtained some heat setting to the intermediate container, the time at the inside surface of the bottle can be reduced with respect to the one- step process, it can be one or two seconds, depending on the speed of the machine, which manufactures the bottles. After heat-setting in the second preform, the bottle is quickly cooled down by an air stream to avoid deformation and then taken out of the mould.
  • the temperature given above as an example can be extended to a full range of temperatres, depending on the structure of multilayer and depending on the speed of the machine. It should be at such temperature, which avoids substantial visual crystalizing and such it should be below 170 °C, preferably below 140°C. Although crystalizing at a small scale in the PET can not be avoided at all, visual crystalizing, which results in a whitening can be avoided during heat setting. The speed of the machine and the temperature of the mould for heat setting are adjusted to avoid such visual crystalizing in the container.
  • the amount of Nylon is in a range between 4% and about 6%. Between the Nylon barrier layer and the PET outer layers there is no intermediate tie-layer, which provides adhesion or cohesion of the different material layers. In other words the Nylon-layer and the PET- layer are directly attached to each other and still provide good cohesion.
  • a five layer preform according a standard process of prior art was stretch-blown.
  • the standard preform had three layers of PET (two outside and one in the middle) and had two layers of Nylon MXD6 between the PET layers.
  • Such preform was biaxially stretch-blown in a cold mould (20°C inner surface temperature) to produce a multilayer bottle.
  • the speed of the machine was adjusted to 1200 bottles per hour and the examples were taken in a range of Nylon between 4% and 6% of weight of the preform.
  • the measurement results of this bottle, manufactured according to prior art will be given after explaining the two inventive examples with heat setting after stretch-blowing.
  • Inventive example 2 has a five layer preform according to example 1 and was blown in a one-step stretch-blowing process.
  • the mould (the only mould) was set to a temperature of 160 °C at the inside surface.
  • the cycle time (speed) of the machine was reduced, it was operated at a speed of 500 bottles per hour, as compared to the aforementioned speed of the machine, to significantly increase the residual time in the (only) mould.
  • the bottles were quickly cooled down, as mentioned before.
  • Example 3 is the second inventive example. It is similar to the aforementioned example 2, with the exception that a two step stretch-blowing process was used. In a first stretch-blowing step the intermediate container was created and stretch-blown onto the inside of a first mould, which had a temperature of about 20 °C. Bottle shrinkage was obtained in a recovery oven with a temperature of about 200°C. The final blow in a second blow mould took place according to example 2 as given above, but with a temperature of only 130°C at the inside surface of the second mould. Cooling was performed after heat setting time with the "stay time" of about 60% less than in the second example, since the speed of the machine was increased to 800 bottles per hour, with respect to said 500 bottles per hour in example 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé d'amélioration de la propriété 'barrière aux gaz' de contenants polymères, ainsi qu'un contenant fabriqué à l'aide d'un tel procédé. En introduisant une étape de thermodurcissage ou un temps de pose pour la préforme multicouche soufflée étirée, dans le moule, dans un procédé à une étape, ou dans le second moule, dans un procédé à deux étapes, on a pu réduire considérablement la perte de CO2 après 30 jours, ce qui indique une bonne propriété barrière, à savoir respectivement la réduction de la perméabilité aux gaz vers l'intérieur et vers l'extérieur du contenant.
PCT/EP1997/003255 1997-06-20 1997-06-20 Procede de fabrication de contenants multicouches thermodurcis Ceased WO1998058790A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP1997/003255 WO1998058790A1 (fr) 1997-06-20 1997-06-20 Procede de fabrication de contenants multicouches thermodurcis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1997/003255 WO1998058790A1 (fr) 1997-06-20 1997-06-20 Procede de fabrication de contenants multicouches thermodurcis

Publications (1)

Publication Number Publication Date
WO1998058790A1 true WO1998058790A1 (fr) 1998-12-30

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PCT/EP1997/003255 Ceased WO1998058790A1 (fr) 1997-06-20 1997-06-20 Procede de fabrication de contenants multicouches thermodurcis

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027924A1 (de) * 2000-06-06 2001-12-13 Krupp Corpoplast Maschb Gmbh Verfahren zur Herstellung eines Behälters sowie Behälter mit Barriereeigenschaften
EP1424187A4 (fr) * 2001-07-31 2007-11-14 Yoshino Kogyosho Co Ltd Procede de fabrication d'une bouteille faite principalement de resine de poly(ethylene terephtalate)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818575A (en) * 1986-02-28 1989-04-04 Toyo Seikan Kaisha, Ltd. Biaxially drawn polyester vessel having resistance to heat distortion and gas barrier properties and process for preparation thereof
US4891178A (en) * 1987-03-02 1990-01-02 Owens-Illinois Plastic Products Inc. Method of making partially crystalline biaxially oriented hollow plastic free standing containers
US5068136A (en) * 1987-12-22 1991-11-26 Mitsubishi Gas Chemical Company, Inc. Five-layered container
US5352402A (en) * 1989-10-23 1994-10-04 Nissei Asb Machine Co., Ltd. Method and apparatus for manufacturing biaxially oriented, thermally stable, blown containers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818575A (en) * 1986-02-28 1989-04-04 Toyo Seikan Kaisha, Ltd. Biaxially drawn polyester vessel having resistance to heat distortion and gas barrier properties and process for preparation thereof
US4891178A (en) * 1987-03-02 1990-01-02 Owens-Illinois Plastic Products Inc. Method of making partially crystalline biaxially oriented hollow plastic free standing containers
US5068136A (en) * 1987-12-22 1991-11-26 Mitsubishi Gas Chemical Company, Inc. Five-layered container
US5352402A (en) * 1989-10-23 1994-10-04 Nissei Asb Machine Co., Ltd. Method and apparatus for manufacturing biaxially oriented, thermally stable, blown containers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027924A1 (de) * 2000-06-06 2001-12-13 Krupp Corpoplast Maschb Gmbh Verfahren zur Herstellung eines Behälters sowie Behälter mit Barriereeigenschaften
EP1424187A4 (fr) * 2001-07-31 2007-11-14 Yoshino Kogyosho Co Ltd Procede de fabrication d'une bouteille faite principalement de resine de poly(ethylene terephtalate)
US7485251B2 (en) 2001-07-31 2009-02-03 Yoshino Kogyosho Co., Ltd. Method for producing bottle-shaped container mainly made of polyethylene terephthalate resin
KR100884866B1 (ko) * 2001-07-31 2009-02-23 가부시키가이샤 요시노 고교쇼 폴리에틸렌 테레프탈레이트 수지를 주재료로 한 병의제조방법

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