DE804699T1 - Kunststoffrohr - Google Patents

Kunststoffrohr

Info

Publication number
DE804699T1
DE804699T1 DE0804699T DE96901307T DE804699T1 DE 804699 T1 DE804699 T1 DE 804699T1 DE 0804699 T DE0804699 T DE 0804699T DE 96901307 T DE96901307 T DE 96901307T DE 804699 T1 DE804699 T1 DE 804699T1
Authority
DE
Germany
Prior art keywords
protective layer
outer protective
inner core
plastic pipe
pipe
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.)
Pending
Application number
DE0804699T
Other languages
English (en)
Inventor
Mikael Andersson
David Charles Harget
Eino Matias Holso
Jyri Jaakko Jarvenkyla
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.)
Uponor Ltd UK
Original Assignee
Uponor Ltd UK
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10768146&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE804699(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Uponor Ltd UK filed Critical Uponor Ltd UK
Publication of DE804699T1 publication Critical patent/DE804699T1/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0222—Mechanical pre-treatments, e.g. reshaping without removal of material, e.g. cleaning by air blowing or using brushes
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02245—Abrading, e.g. grinding, sanding, sandblasting or scraping
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29L2009/00—Layered products
    • 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
    • B29L2009/00—Layered products
    • B29L2009/001—Layered products the layers being loose
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
    • Y10T428/1393—Multilayer [continuous layer]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Flexible Shafts (AREA)

Claims (22)

Patentansprüche
1. Kunststoffrohr mit einem inneren Kern und einer äußeren Schutzschicht, bei dem
die Abmessungen des Rohres und der Schutzschicht so sind, dass das Verhältnis von äußerem Durchmesser des Rohres zu Dicke der Schutzschicht mindestens 70, vorzugsweise mindestens 10 0 beträgt, und
die Kohäsionsfestigkeit der äußeren Schutzschicht, ausgenommen irgendwelcher Schwächungslinien, zumindest an den Enden des Rohres größer ist als die Festigkeit der Klebeverbindung zwischen der äußeren Schutzschicht und dem inneren Kern.
2. Kunststoffrohr mit einem inneren Kern und einer äußeren Schutzschicht, bei dem
die Haftung zwischen dem inneren Kern und der äußeren Schutzschicht bei 0 0C so ist, dass bei einem B50 Schlagtest gemäß CEN TC155W1 081(291) Druckschriftenhinweis 155N696E beim Brechen der äußeren Schutzschicht und Bilden eines Risses dieser an der Grenzschicht von äußerer Schicht und innerem Kern aufgehalten wird.
3. Kunststoffrohr mit einem inneren Kern und einer äußeren Schutzschicht, bei dem
das Kunststoffrohr eine Schlagfestigkeit von mehr als 150 Nm bei einem B50 Schlagtest gemäß CEN TC155W1 081(291), Druckschriftenhinweis 155N696E, gemessen bei 0 0C hat und wobei die Kohäsionsfestigkeit der äußeren Schutzschicht, ausschließlich irgendwelcher Schwächungslinien, zumindest an den Enden des Rohres größer ist als die Stärke der Klebeverbindung zwischen der äußeren Schutzschicht und dem inneren Kern.
.::.&udigr;·&ugr;&tgr;·&Pgr;·:
DE /EP O 804 699 T1
4. Kunststoffrohr nach einem der vorhergehenden Ansprüche, bei dem die Haftung zwischen der äußeren Schutzschicht und dem inneren Kern im Bereich von 0,2 bis 0,5 N/mm liegt, gemessen mit einem Schältest wie vorstehend beschrieben.
5. Kunststoffrohr nach einem der vorhergehenden Ansprüche, bei dem der innere Kern Polyethylen enthält.
6. Kunststoffrohr nach einem der vorhergehenden Ansprüche, bei dem die äußere Schutzschicht ein Propylenhomo- oder -copolymer enthält.
7. Kunststoffrohr nach einem der vorhergehenden Ansprüche, bei dem der innere Kern im Wesentlichen frei von Antioxidationsmitteln und/oder UV-Stabilisatoren ist.
8. Kunststoffrohr nach einem der vorhergehenden Ansprüche, bei dem die äußere Schutzschicht einen Titandioxidfüllstoff enthält.
9. Kunststoffrohr nach einem der vorhergehenden Ansprüche, bei dem die äußere Schutzschicht eine Dicke im Bereich von 0,3 bis 0,5 mm hat.
10. Kunststoffrohr nach einem der vorhergehenden Ansprüche, bei dem das Verhältnis von äußerem Durchmesser des Rohres zur Dicke der Schutzschicht im Bereich von 150 bis 400 liegt.
11. Kunststoffrohr nach einem der vorhergehenden Ansprüche, bei dem die Kohäsionsfestigkeit der äußeren Schutzschicht im Bereich von 15 MPa bis 25 MPa liegt.
12. Kunststoffrohr nach einem der vorhergehenden Ansprüche, bei dem die äußere Schutzschicht eine Zugfestigkeit von 5 MPa bis 10 MPa hat.
DE /EP O 804 6SSTt
13. Kunststoffrohr nach einem der vorhergehenden Ansprüche, wie im Wesentlichen in dem Beispiel beschrieben.
14. Kunststoffrohr wie im Wesentlichen beschrieben.
15. Verfahren zur Herstellung eines Kunststoffrohres, das einen inneren Kern und eine äußere Schutzschicht aufweist, durch Koextrudieren von geschmolzenen Kunststoffmaterialien, die den inneren Kern und die äußere Schutzschicht bilden, aus einer Extruderdüse, Zusammenbringen des geschmolzenen Plastikmaterials während dieses noch erwärmt ist, gestatten einer Abkühlung, so dass beim Abkühlen die äußere Schutzschicht zumindest an den Enden des Rohres vom inneren Kern abgeschält werden kann, um die Oberfläche des inneren Kerns für das Elektroschmelzschweißen freizulegen.
16. Verfahren nach Anspruch 15, bei dem der innere Kern Polyethylen und die äußere Schutzschicht ein Propylenhomo- oder -copolymer enthält.
17. Verfahren nach Anspruch 15 oder 16, bei dem die Kunststoffmaterialien im Druckbereich einer Extruderdüse in Berührung miteinander gebracht werden.
18. Verfahren nach einem der Ansprüche 15 bis 17, bei dem der innere Kern und die äußere Schutzschicht bei einer Temperatur von 150 0C bis 220 0C zusammengeführt werden.
19. Verfahren nach einem der Ansprüche 15 bis 18 wie im Wesentlichen im Beispiel beschrieben.
20. Verfahren nach einem der Ansprüche 15 bis 19 wie im Wesentlichen beschrieben.
21. Verfahren zur Herstellung einer Verbindung in einem Kunststoffrohr gemäß einem der Ansprüche 1 bis 14 oder Verbindung von zwei Kunststoffrohren gemäß einem der Ansprüche 1 bis
DE/EP O 804 6S9T1
14, bei dem die äußere Schutzschicht vom zu verbindenden Bereich oder zu verbindenden Bereichen des Rohres abgeschält wird, ein Elektroschmelzkoppler über den freigelegten Bereich oder die freigelegten Bereiche des Rohres oder der Rohre gebracht wird und der Elektroschmelzkoppler zum Verschweißen des Bereichs oder der Bereiche des Rohres oder der Rohre aktiviert wird.
22. Elektroschmelzverbindung hergestellt nach dem Verfahren gemäß Anspruch 21.
DE0804699T 1995-01-18 1996-01-17 Kunststoffrohr Pending DE804699T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9500885A GB2297137B (en) 1995-01-18 1995-01-18 Plastics pipe
PCT/EP1996/000211 WO1996022485A1 (en) 1995-01-18 1996-01-17 Plastics pipe

Publications (1)

Publication Number Publication Date
DE804699T1 true DE804699T1 (de) 2001-10-25

Family

ID=10768146

Family Applications (4)

Application Number Title Priority Date Filing Date
DE69634787T Expired - Lifetime DE69634787T3 (de) 1995-01-18 1996-01-17 Kunststoffrohre
DE0804699T Pending DE804699T1 (de) 1995-01-18 1996-01-17 Kunststoffrohr
DE69629013T Expired - Lifetime DE69629013T3 (de) 1995-01-18 1996-01-17 Kunststoffrohr
DE69637037T Expired - Lifetime DE69637037T2 (de) 1995-01-18 1996-01-17 Kunststoffrohre

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69634787T Expired - Lifetime DE69634787T3 (de) 1995-01-18 1996-01-17 Kunststoffrohre

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE69629013T Expired - Lifetime DE69629013T3 (de) 1995-01-18 1996-01-17 Kunststoffrohr
DE69637037T Expired - Lifetime DE69637037T2 (de) 1995-01-18 1996-01-17 Kunststoffrohre

Country Status (18)

Country Link
US (1) US6016849A (de)
EP (4) EP1321703B2 (de)
JP (1) JPH10512656A (de)
AT (3) ATE360169T1 (de)
AU (1) AU705621B2 (de)
CZ (1) CZ293247B6 (de)
DE (4) DE69634787T3 (de)
DK (3) DK1321703T4 (de)
ES (3) ES2284104T3 (de)
FI (1) FI119447B (de)
GB (3) GB2297137B (de)
HU (1) HUP9702402A3 (de)
NO (1) NO329119B1 (de)
PL (1) PL178860B1 (de)
PT (2) PT1593896E (de)
RU (1) RU2165047C2 (de)
TR (1) TR199700661T1 (de)
WO (1) WO1996022485A1 (de)

Families Citing this family (29)

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GB9814966D0 (en) 1998-09-09
CZ226897A3 (cs) 1998-09-16
NO973309L (no) 1997-09-16
DE69629013D1 (de) 2003-08-14
US6016849A (en) 2000-01-25
DE69637037D1 (de) 2007-05-31
EP1321703A3 (de) 2003-07-16
HUP9702402A3 (en) 2000-12-28
GB2323556B (en) 1999-02-03
GB2323556A (en) 1998-09-30
GB9600985D0 (en) 1996-03-20
CZ293247B6 (cs) 2004-03-17
DE69634787D1 (de) 2005-06-30
EP0804699B2 (de) 2008-12-03
EP1593896A1 (de) 2005-11-09
DK0804699T4 (da) 2009-03-09
PL321369A1 (en) 1997-12-08
RU2165047C2 (ru) 2001-04-10
EP0804699A1 (de) 1997-11-05
EP1818586A1 (de) 2007-08-15
GB9500885D0 (en) 1995-03-08
DE69634787T2 (de) 2006-02-02
DK1321703T4 (da) 2010-07-05
DE69634787T3 (de) 2010-09-23
FI973028A (fi) 1997-09-08
AU705621B2 (en) 1999-05-27
PT804699E (pt) 2003-11-28
JPH10512656A (ja) 1998-12-02
EP0804699B1 (de) 2003-07-09
DK1321703T3 (da) 2005-08-29
ES2202426T3 (es) 2004-04-01
DE69629013T2 (de) 2004-10-21
HUP9702402A2 (hu) 1998-03-30
PL178860B1 (pl) 2000-06-30
ATE244844T1 (de) 2003-07-15
ATE360169T1 (de) 2007-05-15
DK0804699T3 (da) 2003-10-27
ES2242922T3 (es) 2005-11-16
AU4537896A (en) 1996-08-07
DE69637037T2 (de) 2007-12-27
FI119447B (fi) 2008-11-14
GB2297137B (en) 1999-02-03
TR199700661T1 (xx) 1998-01-21
EP1321703B2 (de) 2010-03-03
ES2202426T5 (es) 2009-05-01
EP1321703B1 (de) 2005-05-25
GB2297137A (en) 1996-07-24
PT1593896E (pt) 2007-05-31
EP1321703A2 (de) 2003-06-25
ATE296419T1 (de) 2005-06-15
FI973028A0 (fi) 1997-07-17
GB2297138A (en) 1996-07-24
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ES2242922T5 (es) 2010-06-28
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WO1996022485A1 (en) 1996-07-25
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