GB2262709A - Epoxy/polyolefin coating process - Google Patents
Epoxy/polyolefin coating processInfo
- Publication number
- GB2262709A GB2262709A GB9302474A GB9302474A GB2262709A GB 2262709 A GB2262709 A GB 2262709A GB 9302474 A GB9302474 A GB 9302474A GB 9302474 A GB9302474 A GB 9302474A GB 2262709 A GB2262709 A GB 2262709A
- Authority
- GB
- United Kingdom
- 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
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 DEG 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 |
PCT/CA1991/000293 WO1992003234A1 (en) | 1990-08-20 | 1991-08-16 | Epoxy/polyolefin coating process |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9302474D0 GB9302474D0 (en) | 1993-04-21 |
GB2262709A true GB2262709A (en) | 1993-06-30 |
GB2262709B GB2262709B (en) | 1994-03-02 |
Family
ID=10680937
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB909018236A Pending GB9018236D0 (en) | 1990-08-20 | 1990-08-20 | Epoxy/polyolefin coating process |
GB9302474A Expired - Fee Related GB2262709B (en) | 1990-08-20 | 1993-02-09 | Epoxy/polyolefin coating process |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB909018236A Pending GB9018236D0 (en) | 1990-08-20 | 1990-08-20 | 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) |
Families Citing this family (13)
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 |
DE102006057179A1 (en) | 2005-12-03 | 2007-06-21 | Skumtech As | Corrosion protection for anchors in the mountains |
CA2537348A1 (en) | 2006-02-22 | 2007-08-22 | Shawcor Ltd. | Coating method for pipe having weld bead |
CA2632802A1 (en) * | 2008-05-30 | 2009-11-30 | Shawcor Ltd. | Coating compositions and processes for making the same |
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 |
KR20170019385A (en) | 2014-06-12 | 2017-02-21 | 다우 글로벌 테크놀로지스 엘엘씨 | Powder coatings |
CA2985390C (en) | 2015-05-22 | 2022-11-29 | Solvay Specialty Polymers Italy S.P.A. | Multilayer 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 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0366168A1 (en) * | 1988-10-03 | 1990-05-02 | Dow Benelux N.V. | 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
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0366168A1 (en) * | 1988-10-03 | 1990-05-02 | Dow Benelux N.V. | Process for field coating pipe |
Also Published As
Publication number | Publication date |
---|---|
CA2089766A1 (en) | 1992-02-21 |
GB9018236D0 (en) | 1990-10-03 |
WO1992003234A1 (en) | 1992-03-05 |
BR9106771A (en) | 1993-06-29 |
GB2262709B (en) | 1994-03-02 |
GB9302474D0 (en) | 1993-04-21 |
CA2089766C (en) | 1999-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990816 |