CN1114932A - Flexible sheath made of PVF3 and its application to flexible metal pipes - Google Patents
Flexible sheath made of PVF3 and its application to flexible metal pipes Download PDFInfo
- Publication number
- CN1114932A CN1114932A CN94119528A CN94119528A CN1114932A CN 1114932 A CN1114932 A CN 1114932A CN 94119528 A CN94119528 A CN 94119528A CN 94119528 A CN94119528 A CN 94119528A CN 1114932 A CN1114932 A CN 1114932A
- Authority
- CN
- China
- Prior art keywords
- sheath
- flexible
- pvf3
- application
- metal pipes
- 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
Links
- 239000002184 metal Substances 0.000 title claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims description 7
- 239000004014 plasticizer Substances 0.000 claims description 6
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 claims description 5
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical group FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Chemical group 0.000 claims description 2
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- -1 polytrifluoroethylene Polymers 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 5
- 239000002033 PVDF binder Substances 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- 150000003456 sulfonamides Chemical class 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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
-
- 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
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/14—PVF, i.e. polyvinyl fluoride
Abstract
The invention relates to flexible sheaths based on polytrifluoroethylene can be arranged around flexible metal pipes or cables and can be used as offshore flexible pipes.
Description
The present invention relates to by PVF
3The soft sheath of making and its are applied to flexible metal conduit.
In the gentle exploitation of marine oil, generally use flexible pipe.These flexible pipes are made up of flexible metallic hose, plastic sheath and metal casing, and the effect of plastic sheath is the leakage that prevents that oil is gentle.For example European patent EP 166385 has been described this class flexible pipe.
When liquid utilize temperature to be no more than 80～100 ℃ the time, it is suitable that polyamide is used as leakproof thermoplastic cover.
At high temperature, for example up to 130 ℃ or 140 ℃ the time, use poly-(1, the 2-difluoroethylene).Yet because this polymer is hemicrystalline, the rigidity that has is big, can not be used for a kind of like this structure, and this structure need coil and launch, and temperature is very low sometimes, does not have inside or outside plasticising.
Above-mentioned EP166385 has provided the example of inner plasticising: with the monomer copolymerizable vinylidene fluoride of fluoridizing.Increased the pliability of sheath thus, but reduced its serviceability temperature usually, strengthened the permeability to gas, and observe the sensitivity (for homopolymers) that explosion is strengthened under step-down rapidly, it is dangerous making it use under the high temperature and high pressure operation.
FR2560884,2592655 and 2618791 mentions the use external plasticizer.When the processing flexible pipe made it softness, some plasticizer can use the PVDF of homopolymerization.But this sheath that exhausts of observing in operation along with the plasticizer extremely compatible with PVDF has recovered its original rigidity lentamente.Not only increased rigidity but also become fragile, the result is because exhausting of plasticizer produced internal stress, and the trend of jacket shrinkage is stoped.
It is found that the polymer that comprises the trifluoro-ethylene unit by use has overcome because all these shortcomings that external plasticization brings in the PVDF of needs.The applicant has found that the polymer that comprises the trifluoro-ethylene unit by use makes manufacturing soft (flexible) sheath (or pipe) become possibility.
The serviceability temperature of thus obtained sheath is high more a lot of than the sheath of being produced by PVDF.In addition, this sheath has more flexibility.
Sheath polymer of the present invention is except trifluoro-ethylene (VF
3) outside also can comprise remaining CTFE, tetrafluoroethene, hexafluoropropene, vinylidene fluoride or ethylene unit.
In the present invention, add filler, pigment or even a spot of ester or sulfonamide plasticizer do not depart from the scope of the present invention.
The invention still further relates to the flexible metal conduit that is coated with sheath of the present invention.
The flexible pipe that is obtained is specially adapted to delivering liquid or gaseous hydrocarbon under the high temperature.This flexible pipe can be again with coatings such as protective layer such as rubber, metal or weaving cloth.
For carrying gas, the polymer of preferred sheath mainly is the trifluoro-ethylene homopolymers.
The invention still further relates to the cable that is coated with sheath of the present invention.
No matter be cable or soft tube, can put this sheath by extrusion molding.
Cable can be perhaps metallic cable of forming of multiply of wire or one.
Embodiment
Have one to extrude the flexible pipe that is wrapping with thick for the thermoplastic sheath of 5mm, the diameter of this steel pipe is 32mm, is made up of a plurality of rings, and porose and slit makes that pipe can be movable between ring.
The curling ability of the sheath that constitutes for different materials relatively, can carry out following processes:
The pipe that will add sheath places on two fixing supporting masses.Adopt radius be 75mm bend wheel with two supports body equidistant points on exert pressure.The required pressure that makes casing deformation and obtain this radius of curvature of taking turns acts on this and takes turns.The depth of cup of wheel shows the deformability of flexible pipe.Depth capacity is 170mm: it is equivalent to sleeve pipe and reels fully on wheel.If sleeve pipe breaks before reeling fully, not registered depth.The degree of depth is big more, and flexible pipe more can be crooked.
In addition, test is to carry out under different temperature.
Embodiment 1
The break depth of cup of front-wheel
(being equivalent to maximum) by mm-170mm
Sample I II III IV
20℃ 120 170 170 170
-30℃ 80 150 100 160
Sheath I:VF
2Homopolymers-the derive from Foraflon 1000 of Elf Atochem.
Sheath II:VF
2Homopolymers+7.5% (weight) N-butylbenzene sulfonamide.
Sheath III:VF
2With the copolymer of hexafluoropropene by 95/5 mol ratio.
Sheath IV:VF
3Homopolymers.
Embodiment 2
4 flexible pipes that add sheath are carried out heat ageing reach 3 months under 150 ℃.Carry out above-mentioned experiment then.
The break depth of cup of front-wheel
(being equivalent to maximum) by mm-170mm
Sample I II III IV
20 ℃ 100 90 out of use 170
The fusion sheath
-30 ℃ 40 40 out of use 140
The fusion sheath
Embodiment 3
4 flexible pipes are carried out heat ageing reach 3 months under 180 ℃.Carry out above-mentioned test then.
The break depth of cup of front-wheel
(being equivalent to maximum) by mm-170mm
Sample I II III IV
20 ℃ of sheath fusion sheath fusion sheaths fusion 160
-30 ℃ of distortion indeformable not 110
Can use and to use and to use
Claims (5)
1, soft pillar is based on the polymer that comprises the trifluoro-ethylene unit.
2, according to the product of claim 1, it is characterized in that: this polymer also comprises remaining CTFE, tetrafluoroethene, hexafluoropropene, vinylidene fluoride or ethylene unit.
3, use the flexible metal conduit of the sheath coating of claim 1 and 2.
4, the cable that puts with the sheath of claim 1 and 2.
5, according to the product of claim 3 and 4, wherein sheath also comprises filler, pigment or plasticizer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9315235 | 1993-12-17 | ||
| FR9315235A FR2714140B1 (en) | 1993-12-17 | 1993-12-17 | Flexible sheath in PVF3 and its application to metallic hoses. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1114932A true CN1114932A (en) | 1996-01-17 |
Family
ID=9454071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94119528A Pending CN1114932A (en) | 1993-12-17 | 1994-12-17 | Flexible sheath made of PVF3 and its application to flexible metal pipes |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JP2803584B2 (en) |
| KR (1) | KR950018074A (en) |
| CN (1) | CN1114932A (en) |
| AU (1) | AU688413B2 (en) |
| BE (1) | BE1009248A3 (en) |
| BR (1) | BR9405112A (en) |
| CA (1) | CA2138355A1 (en) |
| DE (1) | DE4445083A1 (en) |
| DK (1) | DK143794A (en) |
| FI (1) | FI945931A (en) |
| FR (1) | FR2714140B1 (en) |
| GB (1) | GB2284819B (en) |
| IT (1) | IT1271733B (en) |
| NO (1) | NO944863L (en) |
| SE (1) | SE9404251A0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100081C (en) * | 2000-08-01 | 2003-01-29 | 上海天臣新技术有限公司 | Antiforge pressure-sensitive marker of high-molecular porous compound film and its preparing process |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9611668D0 (en) * | 1996-06-05 | 1996-08-07 | Balmoral Group | Pipe coating |
| EP2412735B1 (en) | 2009-03-23 | 2014-04-30 | Daikin Industries, Ltd. | Fluororesin and riser pipe |
| DK3594274T3 (en) | 2017-05-10 | 2023-12-11 | Daikin Ind Ltd | SHEET, LAMINATE, PIPE, RISE PIPE AND FLOW PIPE |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2739246A1 (en) * | 1977-08-31 | 1979-03-15 | Siemens Ag | Wires with balloon insulation of polyester or fluorocarbon! - giving low dielectric constant and good stability |
| JPS5951421B2 (en) * | 1978-01-24 | 1984-12-13 | 旭硝子株式会社 | Piping materials suitable for moist heat fluids |
| DE3105971A1 (en) * | 1981-02-18 | 1982-08-19 | The Kendall Co., 02101 Boston, Mass. | METHOD FOR COATING TUBES |
| JPS59177199A (en) * | 1983-03-26 | 1984-10-06 | Kurita Water Ind Ltd | Suppression of propagation of bacteria in piping |
| JPS59200202A (en) * | 1983-04-27 | 1984-11-13 | Sumitomo Chem Co Ltd | Optical transmission fiber |
| FR2560884B1 (en) * | 1984-03-06 | 1986-10-03 | Inst Francais Du Petrole | VINYLIDENE POLYFLUORIDE COMPOSITIONS WITH IMPROVED FLEXIBILITY AND THEIR USE, IN PARTICULAR IN THE MANUFACTURE OF FLEXIBLE TUBES |
| NO165612C (en) * | 1984-06-20 | 1991-03-06 | Furukawa Electric Co Ltd | FLEXIBLE COMPOSITION ROOM FOR TRANSPORTING A HIGH-TEMPERATURE FLUID. |
| US4692381A (en) * | 1984-07-16 | 1987-09-08 | Pennwalt Corporation | Foamable polyvinylidene fluoride and methods |
| FR2592655B1 (en) * | 1986-01-07 | 1988-07-29 | Atochem | COMPOSITE BASED ON VINYLIDENE POLYFLUORIDE WITH IMPROVED HOLD IN CONTACT WITH HYDROCARBONS - APPLICATION TO THE MANUFACTURE OF TUBE FOR THE OIL INDUSTRY. |
| JPS6374010A (en) * | 1986-09-18 | 1988-04-04 | Toray Ind Inc | Plastic optical fiber having good heat resistance |
| JPH0640164B2 (en) * | 1987-04-22 | 1994-05-25 | セントラル硝子株式会社 | Heat resistant optical transmission fiber |
| FR2618791B1 (en) * | 1987-07-31 | 1989-12-29 | Inst Francais Du Petrole | POLYMER COMPOSITIONS COMPRISING VINYLIDENE POLYFLUORIDE AND AN ELASTOMER, THEIR PREPARATION AND THEIR USES |
| GB2223188B (en) * | 1988-08-26 | 1992-04-15 | Usui Kokusai Sangyo Kk | Coated metal pipe and method for manufacturing the same |
| BE1006615A3 (en) * | 1993-01-25 | 1994-11-03 | Solvay | Polymer compositions intended for the cables manufacturing and pipes flexible and articles made therefrom. |
-
1993
- 1993-12-17 FR FR9315235A patent/FR2714140B1/en not_active Expired - Fee Related
-
1994
- 1994-12-07 SE SE9404251A patent/SE9404251A0/en not_active Application Discontinuation
- 1994-12-12 GB GB9425010A patent/GB2284819B/en not_active Expired - Fee Related
- 1994-12-13 IT ITMI942500A patent/IT1271733B/en active IP Right Grant
- 1994-12-15 BR BR9405112A patent/BR9405112A/en active Search and Examination
- 1994-12-15 NO NO944863A patent/NO944863L/en unknown
- 1994-12-16 KR KR1019940034679A patent/KR950018074A/en not_active Application Discontinuation
- 1994-12-16 CA CA002138355A patent/CA2138355A1/en not_active Abandoned
- 1994-12-16 BE BE9401137A patent/BE1009248A3/en not_active IP Right Cessation
- 1994-12-16 FI FI945931A patent/FI945931A/en not_active Application Discontinuation
- 1994-12-16 DK DK143794A patent/DK143794A/en not_active Application Discontinuation
- 1994-12-16 AU AU81501/94A patent/AU688413B2/en not_active Ceased
- 1994-12-16 JP JP6313351A patent/JP2803584B2/en not_active Expired - Lifetime
- 1994-12-16 DE DE4445083A patent/DE4445083A1/en not_active Withdrawn
- 1994-12-17 CN CN94119528A patent/CN1114932A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100081C (en) * | 2000-08-01 | 2003-01-29 | 上海天臣新技术有限公司 | Antiforge pressure-sensitive marker of high-molecular porous compound film and its preparing process |
Also Published As
| Publication number | Publication date |
|---|---|
| NO944863L (en) | 1995-06-19 |
| DE4445083A1 (en) | 1995-06-22 |
| JPH07276523A (en) | 1995-10-24 |
| JP2803584B2 (en) | 1998-09-24 |
| IT1271733B (en) | 1997-06-04 |
| KR950018074A (en) | 1995-07-22 |
| GB2284819A (en) | 1995-06-21 |
| SE9404251D0 (en) | 1994-12-07 |
| CA2138355A1 (en) | 1995-06-18 |
| SE9404251L (en) | 1995-06-18 |
| AU688413B2 (en) | 1998-03-12 |
| FR2714140A1 (en) | 1995-06-23 |
| SE9404251A0 (en) | 1995-06-18 |
| DK143794A (en) | 1995-06-18 |
| AU8150194A (en) | 1995-06-22 |
| NO944863D0 (en) | 1994-12-15 |
| GB2284819B (en) | 1997-11-19 |
| BE1009248A3 (en) | 1997-01-07 |
| GB9425010D0 (en) | 1995-02-08 |
| FI945931A0 (en) | 1994-12-16 |
| ITMI942500A0 (en) | 1994-12-13 |
| FI945931A (en) | 1995-06-18 |
| ITMI942500A1 (en) | 1996-06-13 |
| BR9405112A (en) | 1995-08-08 |
| FR2714140B1 (en) | 1996-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |