CA2089766A1 - Epoxy/polyolefin coating process - Google Patents
Epoxy/polyolefin coating processInfo
- Publication number
- CA2089766A1 CA2089766A1 CA2089766A CA2089766A CA2089766A1 CA 2089766 A1 CA2089766 A1 CA 2089766A1 CA 2089766 A CA2089766 A CA 2089766A CA 2089766 A CA2089766 A CA 2089766A CA 2089766 A1 CA2089766 A1 CA 2089766A1
- Authority
- CA
- Canada
- Prior art keywords
- polyolefin
- coating
- pipe
- homopolymer
- microns
- 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
Links
- 238000000576 coating method Methods 0.000 title abstract 5
- 229920000098 polyolefin Polymers 0.000 title abstract 5
- 239000004593 Epoxy Substances 0.000 title 1
- 239000011248 coating agent Substances 0.000 abstract 4
- 239000004215 Carbon black (E152) Substances 0.000 abstract 3
- 229920001577 copolymer Polymers 0.000 abstract 3
- 229920001519 homopolymer Polymers 0.000 abstract 3
- 229930195733 hydrocarbon Natural products 0.000 abstract 3
- 150000002430 hydrocarbons Chemical class 0.000 abstract 3
- 239000004711 α-olefin Substances 0.000 abstract 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 2
- 239000005977 Ethylene Substances 0.000 abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 abstract 2
- 239000003822 epoxy resin Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229920000647 polyepoxide Polymers 0.000 abstract 2
- 150000008064 anhydrides Chemical class 0.000 abstract 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/148—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using epoxy-polyolefin systems in mono- or multilayers
-
- 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
A method of coating metallic pipe is disclosed.
The method comprises heating the pipe to a temperature of at least 200 °C and applying an epoxy resin composition having a thickness of at least 300 microns to the outer surface of the heated pipe. Before the epoxy resin composition has completely cured, but preferably after it has gelled, a coating of a modified polyolefin is applied in a thickness of up to 500 microns. The modified polyolefin is a homopolymer or copolymer of hydrocarbon alpha-olefins having 2-10 carbon atoms that has been modified by grafting with ethylenically unsaturated organic carboxylic acid or anhydride. An outer coating of a polyolefin is then applied in a thickness of at least 300 microns, the polyolefin being a homopolymer or copolymer of hydrocarbon alpha-olefins having 2-10 carbon atoms and preferably a homopolymer of ethylene or propylene, or a copolymer of ethylene and a C3-C10 hydrocarbon alpha-olefin. The resultant coating is resistant to impact damage and cathodic disbondment. The coated pipe may be used in buried pipelines in the petroleum industry.
The method comprises heating the pipe to a temperature of at least 200 °C and applying an epoxy resin composition having a thickness of at least 300 microns to the outer surface of the heated pipe. Before the epoxy resin composition has completely cured, but preferably after it has gelled, a coating of a modified polyolefin is applied in a thickness of up to 500 microns. The modified polyolefin is a homopolymer or copolymer of hydrocarbon alpha-olefins having 2-10 carbon atoms that has been modified by grafting with ethylenically unsaturated organic carboxylic acid or anhydride. An outer coating of a polyolefin is then applied in a thickness of at least 300 microns, the polyolefin being a homopolymer or copolymer of hydrocarbon alpha-olefins having 2-10 carbon atoms and preferably a homopolymer of ethylene or propylene, or a copolymer of ethylene and a C3-C10 hydrocarbon alpha-olefin. The resultant coating is resistant to impact damage and cathodic disbondment. The coated pipe may be used in buried pipelines in the petroleum industry.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB909018236A GB9018236D0 (en) | 1990-08-20 | 1990-08-20 | Epoxy/polyolefin coating process |
| GB90.18236 | 1990-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2089766A1 true CA2089766A1 (en) | 1992-02-21 |
| CA2089766C CA2089766C (en) | 1999-03-30 |
Family
ID=10680937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002089766A Expired - Fee Related CA2089766C (en) | 1990-08-20 | 1991-08-16 | Epoxy/polyolefin coating process |
Country Status (4)
| Country | Link |
|---|---|
| BR (1) | BR9106771A (en) |
| CA (1) | CA2089766C (en) |
| GB (2) | GB9018236D0 (en) |
| WO (1) | WO1992003234A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143602A1 (en) * | 2008-05-30 | 2009-12-03 | Shawcor Ltd. | Coating compositions and processes for making the same |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4310525A1 (en) | 1993-03-31 | 1994-10-06 | Basf Lacke & Farben | Three-layer metal pipe coating agent and method for external coating of metal pipes in three-layer process |
| FR2723006B1 (en) * | 1994-07-28 | 1996-09-13 | Gts Isopipe Sa | PROCESS FOR PRODUCING A PROTECTIVE COATING ON A TUBE AND, PARTICULARLY, ON A PIPELINE TUBE DEVICE AND INSTALLATION FOR IMPLEMENTING SAME |
| FR2743330A1 (en) * | 1996-01-10 | 1997-07-11 | Atochem Elf Sa | COATING OF METAL SURFACES |
| JP3943003B2 (en) * | 2002-10-10 | 2007-07-11 | 第一高周波工業株式会社 | Manufacturing method of multi-layer coated metal curved pipe |
| JP3979920B2 (en) * | 2002-11-05 | 2007-09-19 | 第一高周波工業株式会社 | Multi-layer coating material for forming anti-corrosion coating and method for forming anti-corrosion coating |
| WO2007062871A1 (en) | 2005-12-03 | 2007-06-07 | Skumtech As | Corrosion protection for anchors in rock |
| CA2537348A1 (en) | 2006-02-22 | 2007-08-22 | Shawcor Ltd. | Coating method for pipe having weld bead |
| IT1403637B1 (en) * | 2011-01-20 | 2013-10-31 | Saipem Spa | METHOD OF JUNCTION OF TUBE CUTTINGS TO CREATE PIPES FOR HYDROCARBONS, IN PARTICULAR SUBMARINE PIPES |
| DE102014102621A1 (en) * | 2014-02-27 | 2015-08-27 | Doege Beteiligungs Gmbh | Large-tube arrangement and method for producing such |
| WO2015191280A2 (en) | 2014-06-12 | 2015-12-17 | Dow Global Technologies Llc | Powder coatings |
| JP6644088B2 (en) | 2015-05-22 | 2020-02-12 | ソルベイ スペシャルティ ポリマーズ イタリー エス．ピー．エー． | Multi-layer assembly |
| JP7245395B2 (en) * | 2020-07-07 | 2023-03-23 | 第一高周波工業株式会社 | Method for manufacturing three-layer coated metal pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8823194D0 (en) * | 1988-10-03 | 1988-11-09 | Dow Chemical Nederland | Process for field coating pipe |
-
1990
- 1990-08-20 GB GB909018236A patent/GB9018236D0/en active Pending
-
1991
- 1991-08-16 WO PCT/CA1991/000293 patent/WO1992003234A1/en active Application Filing
- 1991-08-16 BR BR919106771A patent/BR9106771A/en not_active Application Discontinuation
- 1991-08-16 CA CA002089766A patent/CA2089766C/en not_active Expired - Fee Related
-
1993
- 1993-02-09 GB GB9302474A patent/GB2262709B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143602A1 (en) * | 2008-05-30 | 2009-12-03 | Shawcor Ltd. | Coating compositions and processes for making the same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9018236D0 (en) | 1990-10-03 |
| GB2262709B (en) | 1994-03-02 |
| CA2089766C (en) | 1999-03-30 |
| GB2262709A (en) | 1993-06-30 |
| BR9106771A (en) | 1993-06-29 |
| GB9302474D0 (en) | 1993-04-21 |
| WO1992003234A1 (en) | 1992-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2089766A1 (en) | Epoxy/polyolefin coating process | |
| US2343225A (en) | Method of applying protective coatings for metal | |
| US4606953A (en) | Polypropylene coated steel pipe | |
| WO1995033579A1 (en) | On-site pipe coating process | |
| US4118260A (en) | Heat recoverable article | |
| US3466207A (en) | Treatment of metals for promoting adhesion of polyolefins | |
| US3539411A (en) | Process for protectively covering substrate articles | |
| US3231443A (en) | Method of applying protective wrapping to metallic conduits | |
| US3610291A (en) | Protective covering and article | |
| KR970021238A (en) | Metal surface coated with polymer | |
| US6149969A (en) | On-site pipe coating process | |
| US3086904A (en) | Method for applying organic film to adhesively coated metal strip | |
| JPS5874336A (en) | Manufacture of coated steel pipe | |
| US3032459A (en) | Method of coating sheet material | |
| EP0738581B1 (en) | Lining for the inner surface of a pipe and method of applying the same | |
| EP0910482B1 (en) | Process for repairing plastic coatings of metal pipes | |
| RU93004948A (en) | EPOXYPOLIOLOLEFIN COATING METHOD | |
| EP0865325B1 (en) | Process for repairing plastic coatings of metal pipes | |
| CA2253225C (en) | On-site pipe coating process | |
| JPS5496571A (en) | Method of coating steel pipe with plastics | |
| JPS583827A (en) | Corrosion protection for metallic product | |
| US3053725A (en) | Coating of sheet material | |
| US2082174A (en) | Reenforced pipe shield | |
| US4298641A (en) | Heat recoverable article | |
| JPS6211645A (en) | Embossing finishing method of polyolefin laminate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |