EP0000801A1 - Verfahren zur Herstellung orientierter Hohlkörper - Google Patents

Verfahren zur Herstellung orientierter Hohlkörper Download PDF

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Publication number
EP0000801A1
EP0000801A1 EP19780200127 EP78200127A EP0000801A1 EP 0000801 A1 EP0000801 A1 EP 0000801A1 EP 19780200127 EP19780200127 EP 19780200127 EP 78200127 A EP78200127 A EP 78200127A EP 0000801 A1 EP0000801 A1 EP 0000801A1
Authority
EP
European Patent Office
Prior art keywords
preforms
neck
final
blowing
molded
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.)
Granted
Application number
EP19780200127
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English (en)
French (fr)
Other versions
EP0000801B1 (de
Inventor
Guy Hubert
Edmond Michel
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.)
Solvay SA
Original Assignee
Solvay 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 Solvay SA filed Critical Solvay SA
Publication of EP0000801A1 publication Critical patent/EP0000801A1/de
Application granted granted Critical
Publication of EP0000801B1 publication Critical patent/EP0000801B1/de
Expired legal-status Critical Current

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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
    • B29C49/08—Biaxial stretching during 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
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • 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
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B29C2949/0731—Preforms or parisons characterised by their configuration having variable diameter 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
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B29C2949/0732—Preforms or parisons characterised by their configuration having variable diameter 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
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B29C2949/0733—Preforms or parisons characterised by their configuration having variable diameter 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
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • 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
    • B29C2949/079—Auxiliary parts or inserts
    • B29C2949/0793—Transport means
    • 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
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0811—Wall thickness
    • B29C2949/0816—Wall thickness of the flange
    • 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
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0829—Height, length
    • B29C2949/0834—Height, length of the flange
    • 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/18—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using several blowing steps

Definitions

  • the present invention relates to a process for the production of oriented hollow bodies of thermoplastic material, such as bottles and similar articles, the neck of which has an orifice ring at its upper part allowing the application of a tight closure.
  • hollow bodies made of thermoplastic material which have substantially improved mechanical properties by using production techniques leading to an orientation, preferably biaxial, of the macromolecules constituting their wall.
  • first preforms are blown, of generally cylindrical shape, generally comprising a closed bottom and a molded neck in its final shape. These preforms are then thermally conditioned so as to bring them to an optimum temperature for orientation by stretching. Then, these conditioned preforms are blown in order to give them the shape of the desired hollow bodies.
  • the diameter of the preforms and their length are chosen so that they are strongly stretched, preferably biaxially, during the final blowing.
  • the hollow bodies produced using this technique can be fitted with a perfectly sealed closure. This is the reason why their necks are usually molded, not during the final blowing, but during the blowing of the preforms. Indeed, as the thermoplastic material is at a relatively high temperature during the blowing of the preforms, it is can mold the collar ensuring perfect fidelity of details and precise calibration of the orifice.
  • the neck cannot be molded satisfactorily during the final blowing, which is necessarily done at a relatively low temperature, without having to use extremely complex techniques such as that described in French patent application 69.09515 filed on March 28 1969 on behalf of HERCULES INCORPORATED. This is why, it is currently preferred to permanently mold the neck when blowing the preforms.
  • the final molding of the neck during the blowing of the preforms has serious drawbacks.
  • the neck area does not exhibit symmetry of revolution, for example because it is threaded, special precautions must be taken to transfer the preforms without damaging the neck and to position them correctly in the final blow mold.
  • the thermoplastic material is poorly used at the neck since the wall necessarily has a thickness almost equal to that of the starting tubular parison and has unattractive properties since it is not oriented.
  • the present invention therefore relates to a process for the production of oriented hollow bodies of thermoplastic material, the neck of which has an orifice ring at its upper part and a molded lower part, in which preforms are blow molded from a hot tubular parison of thermoplastic material, the preforms are thermally conditioned at a temperature capable of inducing the orientation of the thermoplastic material during its stretching, and the preforms are blown into final blow molds and in which the ring is molded orifice in its final form during the blow molding of the preforms and the part is molded lower neck during final blowing.
  • the shape and dimensions of the orifice ring are not critical and are chosen, in general, according to the closure which it is desired to use on the hollow bodies produced.
  • the ring can have a rounded profile at its upper part and at right angles to its lower part when it is desired to close the hollow bodies with metal capsules.
  • the ring may have a circular or rectangular section for example.
  • the height of the ring is between 1 and 10 mm and its thickness between 0.5 and 5 mm.
  • the orifice ring can be molded with very great precision since the thermoplastic material can be brought to its ideal temperature to ensure the fidelity of the details and the precision of the calibration during the production of the preforms. Furthermore, the transfer of the preforms no longer poses a problem and their positioning in the final blow mold is greatly simplified since the orifice ring can have a symmetry of revolution without disadvantage. Therefore, the problem of angular positioning of the preforms is eliminated and it suffices to ensure the positioning in height which can be very simple since it can even be done by gravity. Finally, the method according to the present invention gives the possibility of stretching the lower part of the neck during its molding during the final blowing.
  • the preforms which can be used to carry out the process according to the invention can be in any form, provided that they include, in the upper part of their neck, in the region near the opening of the hollow body, a molded orifice ring in its final form.
  • the preforms are provided with a false neck located above the orifice ring.
  • This false neck is eliminated either before or after the final blowing.
  • the thermoplastic material which constitutes it is recycled by grinding.
  • This false neck can be advantageously exploited for blowing the preform by means of a needle, or the transfer and positioning of the preforms.
  • the false neck can be closed or opened, according to the blowing technique used for molding the preforms, and it can be provided with ribs, grooves and pins depending on the operation that one wishes to make.
  • the preforms used have a closed hemispherical bottom and a body of generally cylindrical shape.
  • the maximum diameter of the preforms is preferably between 20 and 80 X of the maximum diameter of the oriented hollow bodies produced from these preforms.
  • Their height can be equal to that of the desired hollow bodies but, in general, it is preferred that the height of the preforms is between 20 and 80% of the height of the oriented hollow bodies produced from these preforms.
  • the preforms are molded from a hot tubular parison of thermoplastic material, the production of which presents no particular difficulty and can be ensured by a conventional extruder.
  • the technique used for the blow molding of the preforms can be arbitrary as long as it allows the production of an orifice ring molded with precision in its final form.
  • the false neck which is preferably housed on the preforms, is kept during the final blowing operation and extends, at least in its upper part, from the final blowing mold .
  • the false neck can be exploited to ensure the introduction of the preform into the final blow mold as well as the positive extraction of the product oriented hollow body. by means of a gripping member acting at the level of the false neck.
  • the false neck can, in this case, be removed later by a bar turning operation.
  • the molding of the preforms is used to condition the preforms produced by cooling them, or at least to initiate the thermal conditioning.
  • This result can in particular be achieved by equipping the preform molds with suitable means such as refrigerant pipes.
  • the thermal conditioning can be carried out or continued by the usual means, and for example in one or more thermostatted enclosures in which the preforms remain after they are removed from the mold and before their introduction into the blow molds.
  • Thermal conditioning can consist of cooling the preforms so as to bring them into the desired temperature range, or of cooling them more strongly and then heating them up to bring them into this same range.
  • the temperature is obviously chosen according to the nature of the thermoplastic material.
  • the preforms can be brought to a uniform temperature over their entire useful height or over their entire thickness. It is also possible to carry out thermal programming along preforms. Thus, it may be advantageous to bring the region of the preforms located just below the orifice ring to a temperature slightly higher than the rest of the preforms so as to promote the stretching and therefore the thinning of this region. during the final blowing.
  • the preforms are introduced into the final blow molds where they are given the final shape of the desired oriented hollow bodies and where one proceeds in particular to the molding of the lower part of the neck, below the orifice ring .
  • the final blowing is carried out by means of a blowing nozzle which is inserted into the preforms and which is designed so as to participate in the axial stretching of the preforms before or during their blowing. It is particularly advantageous to use, for this purpose, the blowing technique which is described in Belgian patent 838 910 of 25.2.1976 in the name of the Applicant.
  • the seal between the blowing nozzles and the preforms during the final blowing can be ensured by pressing the nozzle directly on the orifice ring.
  • the nozzle can also rest on the false neck of the preforms and more particularly on its lower part.
  • the nozzles of blowing can, in these two cases, be used simultaneously to ensure the internal calibration of the necks.
  • the shape imparted to the lower part of the neck of the final blowing may be arbitrary.
  • the molding may in particular consist of a thread.
  • the method according to the invention can be used to produce oriented hollow bodies from any thermoplastic material which can be molecularly oriented by drawing.
  • thermoplastic material which can be molecularly oriented by drawing.
  • examples of the latter include resins with a predominant vinyl chloride content, polyolefins, acrylic copolymers with a high content of acrylic nitrile, thermoplastic polyesters such as polyethylene glycol terephthalate, and polycarbonafes.
  • the method according to the invention can be easily carried out by means of a simple apparatus comprising molds for molding the preforms, the imprint of which ensures the molding of the orifice ring in. its final shape, and final blow molds whose imprint ensures precise accommodation of the orifice ring and the molding of the lower part of the neck.
  • the apparatus comprises a machine for blowing preforms which is fed by a continuous tubular parison of thermoplastic material and whose molds aligned end to end in a contiguous manner on a first rotary support have suitable imprints allowing the production of a false neck, a thermal conditioning device bringing the preforms to the orientation temperature, a final blowing machine comprising a plurality of molds mounted on a second rotary support and also having suitable imprints and a transfer device, constituted by an endless chain equipped with supports, ensuring the transfer of the preforms from the blowing machine of the preforms to the final blowing machine by passing them through the thermal conditioning device.
  • This device can however be mounted directly in the molds for blowing the preforms and be constituted by movable blades which are actuated after the blowing of the preforms and cutting transversely the false molded necks at a certain distance from the orifice rings provided on the preforms.
  • the supports equipping the preform transfer chain are preferably adapted to grip these preforms at their false neck during transfers. It is however possible to provide supports adapted to support the preforms below their orifice ring as described in the aforementioned Belgian patent 837 324.
  • the final blowing machine can be similar to that described in Belgian patent 837 324. It is preferable that the blowing nozzles fitted to this machine are of the same type as that described in Belgian patent 838 910 already mentioned above.
  • This final blowing machine can very advantageously be equipped with extendable radial arms provided at their end with a clamp adapted so as to come to grip the false neck of the preforms, the upper part of which at least projects beyond the final blowing mold.
  • the radial arm can be used to positively remove the hollow body from the mold, move it away from the final blow machine and transfer it, for example, to a conveyor which evacuates the hollow bodies to a free-cutting installation where their fake bottleneck is eliminated.
  • the preform mold 1 which can be mounted with other identical on a rotary blow molding device not shown, has an imprint 2 whose relief allows the blow molding to from a portion of hot tubular parison of thermoplastic material, from a preform comprising a closed hemispherical bottom 3, a body of generally cylindrical shape 4, an orifice ring 5 molded in its final shape and a closed false neck 6 overcoming this ring.
  • the preform is molded by blowing using a retractable hollow needle 7 which pierces the parison in the region intended to form the false neck and which is connected, in a manner known per se, to a source of pressurized fluid not shown.
  • the walls of the mold 1 are equipped with refrigeration channels, not shown, the function of which is to cool the molded preform in order to allow it to be removed from the mold and possibly to ensure total or partial thermal conditioning of the preform.
  • the length of the molded preform is substantially less than the height of the hollow body oriented to produce and its diameter is significantly less than the maximum diameter of the same hollow body.
  • the preform is extracted from the mold 1 and is transferred, passing through a thermal conditioning device, to the final blow mold. During this transfer, the upper part of its false neck 6 is cut in order to open the upper part of the preform.
  • the means used for the transfer grip the preform at its false neck 6 and cooperate with the groove which is formed therein so that the upper part of the false neck 6 is released in order to allow the cutting of this part.
  • the thermally conditioned preform is introduced into a final blow mold 8 which is shown in fig.2 and is mounted on a rotary support, not shown.
  • the mold 8 has an imprint 9 whose relief has a recess 10 allowing the precise housing of the orifice ring 5 molded in its final shape on the preform.
  • the introduction of the preform into the mold 8 is carried out in such a way that, when the mold is closed, the orifice ring 5 comes to be housed precisely in the recess. This introduction can in particular be ensured, for example by means of the device for transferring the preforms, via the false neck 6.
  • the imprint 9 of the mold 8 reproduces in hollow the shape of the oriented hollow body 11 and includes in particular a relief 12 allowing rmation during the final blowing, of the lower part of the neck 13 of the hollow body.
  • the false neck 6 open of the preform overflows from the mold 8 during the final blowing operation. It is used to ensure airtightness during blowing.
  • the blowing nozzle 14 has a shoulder 17 which comes to bear on the internal lower part of the false neck 6 and firmly applies the latter against the edge of the opening 18 of the mold 8.
  • the blowing nozzle 14 comprises a calibration sleeve 19 which precisely controls the opening diameter of the neck of the hollow body 11, and ensures the sealing and the retention of the preform during the final blowing.
  • the rotary final blowing device is provided with a series of extendable radial arms 20 which each collaborate with a final blowing mold 8.
  • the ends of these arms 20 are equipped with removable clamps 21 adapted so as to be closed on the false necks 6 of the preforms, the upper part of which extends beyond the final blow molds 8.
  • the molded oriented hollow body is held by a clamp 21 which thus unmolds the impression 9 of the mold 8.
  • the arm 20 can be extended to radially take out the molded oriented hollow body II from the final blowing machine and bring it onto an evacuation conveyor 22 where it is abandoned by opening of the clamp 21.
  • the control of the radial arms can be ensured by mechanical means such as cams or by electrical, pneumatic or hydraulic means.
  • the radial extension movement of the arms 20 can be amplified by known devices such as rack and pinion devices.
  • the radial arms 20 fitted with clamps 22 can also be exploited by a reverse movement to ensure the introduction of the conditioned preforms into the final blow molds 8.
  • thermoplastic material on which it is easy to apply subsequently closures, such as capsules, very tightly and which, therefore, are particularly suitable for the packaging of carbonated drinks such as beer and lemonades.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
EP19780200127 1977-08-08 1978-08-03 Verfahren zur Herstellung orientierter Hohlkörper Expired EP0000801B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7724579A FR2399977A1 (fr) 1977-08-08 1977-08-08 Procede pour la production de corps creux orientes
FR7724579 1977-08-08

Publications (2)

Publication Number Publication Date
EP0000801A1 true EP0000801A1 (de) 1979-02-21
EP0000801B1 EP0000801B1 (de) 1981-01-28

Family

ID=9194424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780200127 Expired EP0000801B1 (de) 1977-08-08 1978-08-03 Verfahren zur Herstellung orientierter Hohlkörper

Country Status (7)

Country Link
US (1) US4317793A (de)
EP (1) EP0000801B1 (de)
AT (1) AT381671B (de)
BR (1) BR7805053A (de)
DE (1) DE2860374D1 (de)
FR (1) FR2399977A1 (de)
IT (1) IT1097570B (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566871A (en) * 1981-01-16 1986-01-28 Krupp Corpoplast Maschinenbau Gmbh Apparatus for making a parison for blowmolding of a hollow article
DE3101284C2 (de) * 1981-01-16 1985-08-01 Krupp Corpoplast Maschinenbau GmbH, 2000 Hamburg Verfahren zum Formen des offenen Endabschnittes eines einen geschlossenen Boden aufweisenden Vorformlings für das Blasformen eines Hohlkörpers aus thermoplastischem Kunststoff, insbesondere einer Flasche, und Vorrichtung zum Durchführen des Verfahrens
US4515836A (en) * 1982-07-16 1985-05-07 Nordson Corporation Process for coating substrates with aqueous polymer dispersions
US4573429A (en) * 1983-06-03 1986-03-04 Nordson Corporation Process for coating substrates with aqueous polymer dispersions
US4709803A (en) * 1986-02-12 1987-12-01 B & G Machinery Company Preform transfer mechanism
US4767311A (en) * 1986-06-02 1988-08-30 Cincinnati Milacron Inc. Blow molding apparatus with resilient skirted spindle nose
EP0527969A1 (de) * 1990-05-11 1993-02-24 SAAB, Mark, A. Hochfeste, dünnwandige, einstückige katheter
CA2159169C (en) * 1994-09-27 2006-05-16 Tony Salemi Modified plastic bottle injection blow-molding apparatus and process
IT1311703B1 (it) * 1999-07-23 2002-03-19 Sipa Spa Impianto ad alta efficienza di soffiaggio di preforme
US7214341B2 (en) * 2004-01-30 2007-05-08 Owens-Illinois Prescription Products Inc. Method of injection molding a preform including a radially extending element
GB0804266D0 (en) * 2008-03-07 2008-04-16 Univ Belfast Thermoplastic preform method and apparatus
DE102008021526A1 (de) * 2008-04-30 2009-11-05 Krones Ag Vorrichtung zum Expandieren von Kunststoffbehältnissen
ES2390753T3 (es) * 2009-09-10 2012-11-16 Gea Procomac S.P.A. Molde para modelar un contenedor a obtener a partir de una preforma de material plástico y su correspondiente método

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2005138A1 (de) * 1968-03-29 1969-12-05 Hercules Inc
FR2013855A1 (de) * 1968-07-27 1970-04-10 Bosch
FR2021521A1 (de) * 1968-10-25 1970-07-24 Bosch
FR2062304A5 (de) * 1969-09-19 1971-06-25 Bosch
FR2098332A1 (de) * 1970-07-10 1972-03-10 Showa Denko Kk
US3833332A (en) * 1972-11-17 1974-09-03 Owens Illinois Inc Apparatus for forming containers of thermoplastic material
FR2236634A1 (de) * 1972-07-03 1975-02-07 Illinois Tool Works
FR2261117A1 (de) * 1974-02-14 1975-09-12 Solvay
FR2263874A1 (de) * 1974-03-15 1975-10-10 Solvay
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FR2345280A1 (fr) * 1976-03-22 1977-10-21 Solvay Appareillage pour la production en continu de corps creux orientes en matiere thermoplastique

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IT1097570B (it) 1985-08-31
DE2860374D1 (en) 1981-03-19
IT7826381A0 (it) 1978-08-01
AT381671B (de) 1986-11-10
FR2399977A1 (fr) 1979-03-09
EP0000801B1 (de) 1981-01-28
ATA571678A (de) 1986-04-15
US4317793A (en) 1982-03-02
BR7805053A (pt) 1979-03-13

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