FI890347A - Process for making pipes of polymeric material - Google Patents
Process for making pipes of polymeric material Download PDFInfo
- 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
Links
- 239000000463 material Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 229920000642 polymer Polymers 0.000 abstract 3
- 239000000654 additive Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
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.
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)
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)
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 |
-
1988
- 1988-01-28 DE DE3802493A patent/DE3802493C1/de not_active Expired
- 1988-12-28 EP EP88121760A patent/EP0326711B2/en not_active Expired - Lifetime
- 1988-12-28 ES ES88121760T patent/ES2056891T3/en not_active Expired - Lifetime
- 1988-12-28 AT AT88121760T patent/ATE106803T1/en not_active IP Right Cessation
- 1988-12-30 DK DK734588A patent/DK165133C/en not_active IP Right Cessation
-
1989
- 1989-01-02 NO NO890007A patent/NO176589C/en unknown
- 1989-01-24 FI FI890347A patent/FI92244C/en not_active IP Right Cessation
- 1989-01-27 PT PT89555A patent/PT89555B/en not_active IP Right Cessation
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. |