FI890347A - Process for making pipes of polymeric material - Google Patents

Process for making pipes of polymeric material Download PDF

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Publication number
FI890347A
FI890347A FI890347A FI890347A FI890347A FI 890347 A FI890347 A FI 890347A FI 890347 A FI890347 A FI 890347A FI 890347 A FI890347 A FI 890347A FI 890347 A FI890347 A FI 890347A
Authority
FI
Finland
Prior art keywords
polymeric material
pipe
polymer layers
pipes
making pipes
Prior art date
Application number
FI890347A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI92244C (en
FI92244B (en
FI890347A0 (en
Inventor
Siegfried Hopperdietzel
Original Assignee
Rehau Ag & Co
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=6346157&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI890347(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rehau Ag & Co filed Critical Rehau Ag & Co
Publication of FI890347A0 publication Critical patent/FI890347A0/en
Publication of FI890347A publication Critical patent/FI890347A/en
Application granted granted Critical
Publication of FI92244B publication Critical patent/FI92244B/en
Publication of FI92244C publication Critical patent/FI92244C/en

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
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • 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
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • 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
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Materials For Medical Uses (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

The invention relates to piping of polymeric material for holding drawn-in articles, such as cables, pipes and the like. Sliding properties are imparted to the inner circumferential surface of the pipe. The characteristic feature of the invention is that the pipe is produced in a known manner from two concentric polymer layers in a moulding process. These polymer layers are kept different in thickness. A defined amount of friction-reducing additives is added to the inner, thinner polymer layer.
FI890347A 1988-01-28 1989-01-24 A method of making a tube of polymeric material FI92244C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3802493A DE3802493C1 (en) 1988-01-28 1988-01-28
DE3802493 1988-01-28

Publications (4)

Publication Number Publication Date
FI890347A0 FI890347A0 (en) 1989-01-24
FI890347A true FI890347A (en) 1989-07-29
FI92244B FI92244B (en) 1994-06-30
FI92244C FI92244C (en) 1994-10-10

Family

ID=6346157

Family Applications (1)

Application Number Title Priority Date Filing Date
FI890347A FI92244C (en) 1988-01-28 1989-01-24 A method of making a tube of polymeric material

Country Status (8)

Country Link
EP (1) EP0326711B2 (en)
AT (1) ATE106803T1 (en)
DE (1) DE3802493C1 (en)
DK (1) DK165133C (en)
ES (1) ES2056891T3 (en)
FI (1) FI92244C (en)
NO (1) NO176589C (en)
PT (1) PT89555B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2828485B2 (en) * 1990-04-27 1998-11-25 大倉工業株式会社 Method for producing polypropylene-based multilayer stretched film
US5658613A (en) * 1995-01-27 1997-08-19 Technology Licensing Company Hot melt fluidized cladding of innerduct liner
DE19546457C2 (en) * 1995-12-13 1998-09-17 Schulman A Plastics Polymeric composition, coextruded film and process for its manufacture
FR2760814B1 (en) * 1997-03-14 1999-04-23 Novotech EXTENDED TUBULAR PRODUCT, ESPECIALLY OF THE TYPE OF INSTALLATION DUCT
DE29706513U1 (en) * 1997-04-11 1997-06-19 Rehau Ag + Co, 95111 Rehau Pipe made of polymer material
DE29713786U1 (en) * 1997-08-02 1997-09-25 Rehau Ag + Co, 95111 Rehau Thermoplastic pipe
EP0969237A3 (en) * 1998-07-03 2000-03-01 Egeplast Werner Strumann GmbH & Co. Plastic pipe
FR2857461B1 (en) * 2003-07-08 2007-10-12 Acome Soc Coop Production LOW COEFFICIENT FRICTION MATERIAL AND TUBULAR PRODUCT EXTENDING THE COMPRISING MATERIAL
DE202008015520U1 (en) * 2008-11-22 2010-04-22 Rehau Ag + Co Plastic pipe
DE202010017052U1 (en) * 2010-12-24 2012-04-03 Rehau Ag + Co. Pipe or pipe fitting
FR2978081A1 (en) * 2011-07-18 2013-01-25 Wavin Bv METHOD FOR MANUFACTURING A MICRO TUBE
DE102019112213A1 (en) * 2019-05-10 2020-11-12 Norma Germany Gmbh Fluid line for a cooling water system of electric vehicles, electric vehicle and use of a fluid line

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1629452A1 (en) * 1966-07-22 1971-04-01 Loeckmann Hans Novel plastic films
US3847728A (en) * 1972-05-31 1974-11-12 Toyo Seikan Kaisha Ltd Resinous compositions having improved gas permeation resistance and molded structures thereof
DE2752969A1 (en) * 1977-11-28 1979-05-31 Peter Traub Two-ply plastics extruded continuous pipe - comprises inner layer of pure polyethylene and outer layer of low-friction polyethylene-paraffin wax
DE3539304A1 (en) * 1985-11-06 1987-05-07 Wavin Bv PLASTIC PIPE FOR RECEIVING
DE3830942A1 (en) * 1988-09-12 1990-03-15 Wavin Bv PLASTIC PIPE FOR RECEIVING, IN PARTICULAR CABLE PROTECTION PIPE

Also Published As

Publication number Publication date
DK165133C (en) 1993-03-01
NO890007D0 (en) 1989-01-02
DK165133B (en) 1992-10-12
FI92244C (en) 1994-10-10
FI92244B (en) 1994-06-30
NO890007L (en) 1989-07-31
DK734588D0 (en) 1988-12-30
ES2056891T3 (en) 1994-10-16
PT89555A (en) 1989-10-04
NO176589C (en) 1995-04-26
NO176589B (en) 1995-01-16
DE3802493C1 (en) 1989-08-17
DK734588A (en) 1989-07-29
EP0326711B2 (en) 1997-09-10
EP0326711A3 (en) 1990-07-18
ATE106803T1 (en) 1994-06-15
FI890347A0 (en) 1989-01-24
EP0326711B1 (en) 1994-06-08
PT89555B (en) 1994-04-29
EP0326711A2 (en) 1989-08-09

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Legal Events

Date Code Title Description
BB Publication of examined application
MM Patent lapsed
MM Patent lapsed

Owner name: REHAU AG + CO.