FR2714140A1 - Flexible sheath in PVF3 and its application to metallic hoses. - Google Patents

Flexible sheath in PVF3 and its application to metallic hoses. Download PDF

Info

Publication number
FR2714140A1
FR2714140A1 FR9315235A FR9315235A FR2714140A1 FR 2714140 A1 FR2714140 A1 FR 2714140A1 FR 9315235 A FR9315235 A FR 9315235A FR 9315235 A FR9315235 A FR 9315235A FR 2714140 A1 FR2714140 A1 FR 2714140A1
Authority
FR
France
Prior art keywords
sheath
flexible
pvf3
application
hoses
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
Application number
FR9315235A
Other languages
French (fr)
Other versions
FR2714140B1 (en
Inventor
Strassel Albert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arkema France SA
Original Assignee
Elf Atochem SA
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
Application filed by Elf Atochem SA filed Critical Elf Atochem SA
Priority to FR9315235A priority Critical patent/FR2714140B1/en
Priority to SE9404251A priority patent/SE9404251L/en
Priority to GB9425010A priority patent/GB2284819B/en
Priority to ITMI942500A priority patent/IT1271733B/en
Priority to NO944863A priority patent/NO944863L/en
Priority to BR9405112A priority patent/BR9405112A/en
Priority to JP6313351A priority patent/JP2803584B2/en
Priority to KR1019940034679A priority patent/KR950018074A/en
Priority to CA002138355A priority patent/CA2138355A1/en
Priority to AU81501/94A priority patent/AU688413B2/en
Priority to BE9401137A priority patent/BE1009248A3/en
Priority to DE4445083A priority patent/DE4445083A1/en
Priority to FI945931A priority patent/FI945931A/en
Priority to DK143794A priority patent/DK143794A/en
Priority to CN94119528A priority patent/CN1114932A/en
Publication of FR2714140A1 publication Critical patent/FR2714140A1/en
Application granted granted Critical
Publication of FR2714140B1 publication Critical patent/FR2714140B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Insulated Conductors (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

L'invention concerne des gaines souples à base de polytrifluoroéthylène. Ces gaines peuvent être disposées autour d'un tube métallique flexible et être utilisées comme flexibles en mer.The invention relates to flexible sleeves based on polytrifluoroethylene. These sheaths can be arranged around a flexible metal tube and be used as flexible at sea.

Description

- 1 - 2714140- 1 - 2714140

GAINE SOUPLE EN PVF3 ET SON APPLICATION  FLEXIBLE SHEATH IN PVF3 AND ITS APPLICATION

AUX FLEXIBLES METALLIQUESWITH METAL FLEXIBLES

La présente invention concerne une gaine souple en PVF3 et son  The present invention relates to a flexible PVF3 sheath and its

application aux flexibles métalliques.  application to metal hoses.

Il est courant d'utiliser des flexibles pour l'exploitation de pétrole et de gaz en mer. Ces flexibles sont constitués d'un tube flexible interne en acier, d'une gaine en matière plastique dont la fonction est d'assurer l'étanchéité aux pétroles et aux gaz et d'armatures métalliques. De tels flexibles sont par exemple écrits dans le  It is common to use hoses for the exploitation of oil and gas at sea. These hoses consist of an internal flexible steel tube, a plastic sheath whose function is to ensure sealing to oils and gases and metal reinforcements. Such hoses are for example written in the

brevet européen EP 166 385.European patent EP 166 385.

Comme gaine thermoplastique d'étanchéité, on utilise des polyamides qui conviennent lorsque la température d'exploitation des fluides ne dépasse pas 80 à  As thermoplastic sealing sheath, polyamides are used which are suitable when the operating temperature of the fluids does not exceed 80 to

1000 C.1000 C.

A plus haute température, par exemple, jusqu'à 130 ou 140 C, on utilise le polyfluorure de vinylidène. Mais ce polymère étant semi-cristallin et sa rigidité élevée, son utilisation n'est pas possible telle quelle dans une structure destinée à être enroulée et déroulée parfois à très basse température sans avoir recours à une  At higher temperature, for example, up to 130 or 140 ° C., polyvinylidene fluoride is used. But this polymer being semi-crystalline and its high rigidity, its use is not possible as such in a structure intended to be wound and unwound sometimes at very low temperature without having to use a

plastification interne ou externe.internal or external plasticization.

Un exemple de plastification interne est donné dans le brevet EP 166 385 cité précédemment: on copolymérise le fluorure de vinylidène avec un monomère fluroré. On augmente ainsi la souplesse de la gaine mais on diminue généralement sa température d'utilisation, on augmente sa perméabilité aux gaz et constate une sensibilité accrue (par rapport à l'homopolymère) à l'éclatement en décompression brutale rendant son utilisation dangereuse pour certaines températures et pressions  An example of internal plasticization is given in the patent EP 166 385 cited above: the vinylidene fluoride is copolymerized with a fluorinated monomer. This increases the flexibility of the sheath but generally decreases its temperature of use, increases its permeability to gases and notes an increased sensitivity (compared to the homopolymer) to bursting in sudden decompression making its use dangerous for some temperatures and pressures

de service élevées.high service.

L'utilisation de plastifiants externes est citée dans les brevets français 2 560 884, 2 592 655 et 2 618 791. Certains plastifiants rendent possible l'utilisation  The use of external plasticizers is cited in French patents 2,560,884, 2,592,655 and 2,618,791. Certain plasticizers make it possible to use

du PVDF homopolymère lors de la manutention des flexibles en l'assouplissant.  PVDF homopolymer when handling the hoses by softening it.

Mais en service, il est constaté que la gaine retrouve peu à peu sa rigidité d'origine par départ du plastifiant généralement très compatible avec le PVDF. Non seulement la rigidité augmente, mais également une fragilisation apparaît du fait de  But in service, it is found that the sheath gradually regains its original rigidity by leaving the plasticizer generally very compatible with PVDF. Not only does the rigidity increase, but also a weakening appears due to

- 2 - 2714140- 2 - 2714140

la création de tensions internes dues au départ du plastifiant et la tendance au  the creation of internal tensions due to the departure of the plasticizer and the tendency to

retrait empêché de la gaine.prevented removal of the sheath.

On a trouvé que tous ces inconvénients dûs à la nécessaire plastification interne ou externe du PVDF étaient supprimés pour l'utilisation d'un polymère comprenant des motifs trifluoroéthylène. La demanderesse a découvert qu'on pouvait faire des gaines (ou des tuyaux) particulièrement souples, en utilisant un  It has been found that all of these drawbacks due to the necessary internal or external plasticization of PVDF were eliminated for the use of a polymer comprising trifluoroethylene units. The Applicant has discovered that particularly flexible sheaths (or pipes) can be made, using a

polymère comprenant des motifs trifluoroéthylène.  polymer comprising trifluoroethylene units.

On obtient ainsi des gaines ayant une température d'utilisation très  Sheaths are thus obtained having a very high operating temperature.

supérieure à celles réalisées en PVDF. De plus, la gaine est beaucoup plus souple.  higher than those produced in PVDF. In addition, the sheath is much more flexible.

Outre le trifluoroéthylène (VF3), le polymère des gaines de l'invention peut comprendre aussi les restes des motifs chlorotrifluoroéthylène, tetrafluoroéthylène,  In addition to trifluoroethylene (VF3), the polymer of the sheaths of the invention can also comprise the residues of the chlorotrifluoroethylene, tetrafluoroethylene units,

hexafluoropropène, fluorure de vinylidène, ou éthylène.  hexafluoropropene, vinylidene fluoride, or ethylene.

On ne sortirait pas du cadre de l'invention en y ajoutant des charges, des  We would not go beyond the scope of the invention by adding charges,

pigments ou même un peu de plastifiants du type ester ou sulfonamide.  pigments or even a few plasticizers of the ester or sulfonamide type.

L'invention concerne aussi un tube métallique flexible recouvert d'une gaine  The invention also relates to a flexible metal tube covered with a sheath

selon la présente invention.according to the present invention.

Le flexible obtenu est particulièrement utile pour le transport d'hydrocarbures liquides ou gazeux à température élevée. Ce flexible peut alors être recouvert de couches de protection telles que des caoutchoucs, des toiles  The hose obtained is particularly useful for transporting liquid or gaseous hydrocarbons at high temperature. This hose can then be covered with protective layers such as rubbers, fabrics

métalliques ou textiles....metallic or textile ...

Pour le transport du gaz, on préfère que le polymère de la gaine soit  For the transport of the gas, it is preferred that the polymer of the sheath is

essentiellement l'homopolymère du trifluoroéthylène.  essentially the homopolymer of trifluoroethylene.

L'invention concerne aussi des câbles recouverts de la gaine de l'invention.  The invention also relates to cables covered with the sheath of the invention.

Que ce soit les câbles ou les tubes flexibles, on peut recouvrir cette gaine  Whether cables or flexible tubes, we can cover this sheath

par un procédé d'extrusion.by an extrusion process.

Le câble peut être un fil métallique ou un toron ou plusieurs torons formant  The cable can be a metal wire or a strand or several strands forming

un câble métallique.a wire rope.

- 3 - 2714140- 3 - 2714140

ExemplesExamples

Autour d'un tube flexible d'acier de 32 mm de diamètre constitué de spires entre lesquelles se trouvent des creux et interstices permettant son articulation, on extrude une gaine thermoplastique de 5 mm d'épaisseur. Pour comparer l'aptitude à l'enroulement de différents matériaux constituant la gaine, on dispose du mode opératoire suivant: O10 Le tube gainé est placé sur deux supports fixes. Au moyen d'un galet de  A 5 mm thick thermoplastic sheath is extruded around a 32 mm diameter flexible steel tube made up of turns between which there are hollows and interstices allowing its articulation. To compare the suitability for winding of different materials constituting the sheath, the following operating mode is available: O10 The sheathed tube is placed on two fixed supports. By means of a roller

cintrage de 75 mm de rayon, on appuie à équidistance des points d'appui du tube.  bending with a radius of 75 mm, the support points of the tube are pressed equidistantly.

On applique sur le galet la pression nécessaire pour déformer le tube gainé et lui donner le rayon de courbure du galet. La hauteur d'enfoncement du galet indique l'aptitude à la déformation du flexible. La hauteur maximum est de 170 mm: elle correspond à l'enroulement parfait du tube gainé sur le galet. Si avant enroulement parfait du tube gainé il y a rupture, on note la hauteur. Plus elle est élevée, plus le  The pressure necessary to deform the sheathed tube and give it the radius of curvature of the roller is applied to the roller. The drive-in height of the roller indicates the ability of the hose to deform. The maximum height is 170 mm: it corresponds to the perfect winding of the sheathed tube on the roller. If before perfect winding of the sheathed tube there is a break, note the height. The higher it is, the higher the

flexible est apte à la flexion.flexible is suitable for bending.

On effectue, de plus, le test à différentes températures.  In addition, the test is carried out at different temperatures.

- 4 - 2714140- 4 - 2714140

Exemple IExample I

Hauteur d'enfoncement du galet avant rupture (en mm - 170 mm correspond au maximum) Echantillon i Il III IV  Drive-in height of the roller before failure (in mm - 170 mm corresponds to the maximum) Sample i Il III IV

C 120 170 170 170  C 120 170 170 170

-30 C 80 150 100 160-30 C 80 150 100 160

Gaine 1: homopolymère de VF2 - Foraflon 1 000 de ELF ATOCHEM.  Sheath 1: homopolymer of VF2 - Foraflon 1000 from ELF ATOCHEM.

Gaine Il: homopolymère de VF2 + 7,5 % en poids de N-butylbenzène  Sheath II: homopolymer of VF2 + 7.5% by weight of N-butylbenzene

o10 sulfonamide.o10 sulfonamide.

Gaine III: copolymère de VF2 et d'hexafluoropropène dans le rapport  Sheath III: copolymer of VF2 and hexafluoropropene in the ratio

molaire 95/5.molar 95/5.

Gaine IV: I'homopolymère de VF3.Sheath IV: the homopolymer of VF3.

- 5 - 2714140- 5 - 2714140

Exemple 2Example 2

On soumet les 4 tubes flexibles gainés à un vieillissement thermique  The 4 sheathed flexible tubes are subjected to thermal aging

pendant 3 mois à 150 C. On effectue ensuite les tests comme décrit précédemment.  for 3 months at 150 C. The tests are then carried out as described above.

Hauteur d'enfoncement du galet avant rupture (en mm - 170 mm correspond au maximum) Echantillon I il III IV C 100 90 Gaine fondue 170 inutilisable - 30 C 40 40 Gaine fondue 140 inutilisable  Insertion height of the roller before rupture (in mm - 170 mm corresponds to the maximum) Sample I il III IV C 100 90 Melted sheath 170 unusable - 30 C 40 40 Melted sheath 140 unusable

-6- 2714140-6- 2714140

Exemple 3Example 3

Les 4 flexibles sont soumis à un vieillissement thermique pendant 3 mois à  The 4 hoses are subjected to thermal aging for 3 months at

C. On effectue ensuite les tests comme décrits précédemment.    C. The tests are then carried out as described above.

Hauteur d'enfoncement du galet avant rupture (en mmrn - 170 mm correspond au maximum) Echantillon I Il III IV C Gaines Gaines Gaines 160 inutilisables inutilisables inutilisables - 30 C fondues - fondues fondues - 110 déformées déformées déformées  Drive-in height of the roller before failure (in mmrn - 170 mm corresponds to the maximum) Sample I Il III IV C Sheaths Sheaths Sheaths 160 unusable unusable unusable - 30 C melted - melted melted - 110 deformed deformed deformed

- 7 - 2714140- 7 - 2714140

Claims (4)

RevendicationsClaims 1) Gaine souple à base d'un polymère comprenant des motifs trifluoroéthylène.  1) Flexible sheath based on a polymer comprising trifluoroethylene units. 2) Produit selon la revendication 1 caractérisé en ce que le polymère comprend aussi les restes des motifs chlorotrifluoroéthylène, tetrafluoroéthylène, hexafluoropropène, fluorure de vinylidène, ou2) Product according to claim 1 characterized in that the polymer also comprises the remains of the chlorotrifluoroethylene, tetrafluoroethylene, hexafluoropropene, vinylidene fluoride units, or o10 éthylène.o10 ethylene. 3) Tube métallique flexible recouvert d'une gaine selon les revendications  3) flexible metal tube covered with a sheath according to the claims I ou2.I or 2. 4) Câble recouvert d'une gaine selon les revendications 1 ou 2.  4) Cable covered with a sheath according to claims 1 or 2. ) Produit selon les revendications 3 ou 4 dans lequel la gaine contient  ) Product according to claims 3 or 4 in which the sheath contains aussi des charges, des pigments ou des plastifiants.  also fillers, pigments or plasticizers.
FR9315235A 1993-12-17 1993-12-17 Flexible sheath in PVF3 and its application to metallic hoses. Expired - Fee Related FR2714140B1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
FR9315235A FR2714140B1 (en) 1993-12-17 1993-12-17 Flexible sheath in PVF3 and its application to metallic hoses.
SE9404251A SE9404251L (en) 1993-12-17 1994-12-07 Flexible sheath of PVF3 and its use on metal hoses
GB9425010A GB2284819B (en) 1993-12-17 1994-12-12 Flexible sheath and its application to flexible metal pipes and cables
ITMI942500A IT1271733B (en) 1993-12-17 1994-12-13 PVF3 FLEXIBLE SHEATH AND ITS APPLICATION TO METAL FLEXIBLES
BR9405112A BR9405112A (en) 1993-12-17 1994-12-15 Flexible polymer-based sheath, flexible metal tube, and cable covered with a sheath
NO944863A NO944863L (en) 1993-12-17 1994-12-15 Flexible sheath based on polyfluoroethylene and its use
DK143794A DK143794A (en) 1993-12-17 1994-12-16 Flexible sheath of PVF3 and use of such sheath for flexible metallic wires
CA002138355A CA2138355A1 (en) 1993-12-17 1994-12-16 Flexible polytrifluoroethylene jacket and its application to metal hoses
JP6313351A JP2803584B2 (en) 1993-12-17 1994-12-16 Flexible sheath made of PVF3 and its application to flexible metal tubes
BE9401137A BE1009248A3 (en) 1993-12-17 1994-12-16 Duct flexible pvf3 and its application to metal flexible.
DE4445083A DE4445083A1 (en) 1993-12-17 1994-12-16 Elastic sheaths made of poly (trifluoroethene), their manufacture and their use, especially for corrugated metal hoses
FI945931A FI945931A (en) 1993-12-17 1994-12-16 Flexible, PVF3-based protective shell and its use in metal hoses
KR1019940034679A KR950018074A (en) 1993-12-17 1994-12-16 Its use as soft exterior and soft metal tube made of PVF₃
AU81501/94A AU688413B2 (en) 1993-12-17 1994-12-16 Flexible sheath and its application to flexible metal pipes and cables
CN94119528A CN1114932A (en) 1993-12-17 1994-12-17 Flexible sheath made of PVF3 and its application to flexible metal pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9315235A FR2714140B1 (en) 1993-12-17 1993-12-17 Flexible sheath in PVF3 and its application to metallic hoses.

Publications (2)

Publication Number Publication Date
FR2714140A1 true FR2714140A1 (en) 1995-06-23
FR2714140B1 FR2714140B1 (en) 1996-01-19

Family

ID=9454071

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9315235A Expired - Fee Related FR2714140B1 (en) 1993-12-17 1993-12-17 Flexible sheath in PVF3 and its application to metallic hoses.

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) SE9404251L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9611668D0 (en) * 1996-06-05 1996-08-07 Balmoral Group Pipe coating
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
WO2010110129A1 (en) 2009-03-23 2010-09-30 ダイキン工業株式会社 Fluororesin and riser pipe
JP6766958B2 (en) 2017-05-10 2020-10-14 ダイキン工業株式会社 Sheets, laminates, pipes, riser tubes and flow lines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502288A1 (en) * 1981-02-18 1982-09-24 Kendall & Co PROCESS FOR REVEATING A TUBE AND TUBE OBTAINED
FR2560884A1 (en) * 1984-03-06 1985-09-13 Inst Francais Du Petrole VINYLIDENE POLYFLUORIDE COMPOSITIONS WITH IMPROVED FLEXIBILITY AND USE THEREOF, IN PARTICULAR IN THE MANUFACTURE OF FLEXIBLE TUBES
FR2592655A1 (en) * 1986-01-07 1987-07-10 Atochem COMPOSITE BASED ON VINYLIDENE POLYFLUORIDE WITH IMPROVED HOLD IN CONTACT WITH HYDROCARBONS - APPLICATION TO THE MANUFACTURE OF TUBE FOR THE OIL INDUSTRY.
FR2618791A1 (en) * 1987-07-31 1989-02-03 Inst Francais Du Petrole POLYMER COMPOSITIONS COMPRISING VINYLIDENE POLYFLUORIDE AND AN ELASTOMER, THEIR PREPARATION AND USES THEREOF
DE3928269A1 (en) * 1988-08-26 1990-03-08 Usui Kokusai Sangyo Kk COATED METAL PIPE AND METHOD FOR THE PRODUCTION THEREOF

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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
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
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
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
BE1006615A3 (en) * 1993-01-25 1994-11-03 Solvay Polymer compositions intended for the cables manufacturing and pipes flexible and articles made therefrom.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502288A1 (en) * 1981-02-18 1982-09-24 Kendall & Co PROCESS FOR REVEATING A TUBE AND TUBE OBTAINED
FR2560884A1 (en) * 1984-03-06 1985-09-13 Inst Francais Du Petrole VINYLIDENE POLYFLUORIDE COMPOSITIONS WITH IMPROVED FLEXIBILITY AND USE THEREOF, IN PARTICULAR IN THE MANUFACTURE OF FLEXIBLE TUBES
FR2592655A1 (en) * 1986-01-07 1987-07-10 Atochem COMPOSITE BASED ON VINYLIDENE POLYFLUORIDE WITH IMPROVED HOLD IN CONTACT WITH HYDROCARBONS - APPLICATION TO THE MANUFACTURE OF TUBE FOR THE OIL INDUSTRY.
FR2618791A1 (en) * 1987-07-31 1989-02-03 Inst Francais Du Petrole POLYMER COMPOSITIONS COMPRISING VINYLIDENE POLYFLUORIDE AND AN ELASTOMER, THEIR PREPARATION AND USES THEREOF
DE3928269A1 (en) * 1988-08-26 1990-03-08 Usui Kokusai Sangyo Kk COATED METAL PIPE AND METHOD FOR THE PRODUCTION THEREOF

Also Published As

Publication number Publication date
JPH07276523A (en) 1995-10-24
SE9404251A0 (en) 1995-06-18
FR2714140B1 (en) 1996-01-19
GB9425010D0 (en) 1995-02-08
NO944863L (en) 1995-06-19
FI945931A (en) 1995-06-18
DE4445083A1 (en) 1995-06-22
AU688413B2 (en) 1998-03-12
SE9404251D0 (en) 1994-12-07
ITMI942500A1 (en) 1996-06-13
GB2284819B (en) 1997-11-19
DK143794A (en) 1995-06-18
ITMI942500A0 (en) 1994-12-13
CN1114932A (en) 1996-01-17
BR9405112A (en) 1995-08-08
KR950018074A (en) 1995-07-22
AU8150194A (en) 1995-06-22
CA2138355A1 (en) 1995-06-18
SE9404251L (en) 1995-06-18
NO944863D0 (en) 1994-12-15
JP2803584B2 (en) 1998-09-24
FI945931A0 (en) 1994-12-16
IT1271733B (en) 1997-06-04
BE1009248A3 (en) 1997-01-07
GB2284819A (en) 1995-06-21

Similar Documents

Publication Publication Date Title
EP0817935B1 (en) Flexible tubular pipe with an internal impervious polymeric sheath
EP1678437B1 (en) Flexible tubular line which is suitable, for example, for oil exploitation, comprising a ptfe coil
OA12796A (en) Dispositif pour limiter le flambage latéral des nappes d'armures d'une conduite flexible.
EP1242765B1 (en) Flexible long-length submarine pipeline with an expandable structure
FR2512165A1 (en) FLEXIBLE PIPE RESISTANT TO HIGH PRESSURES FOR TRANSPORTING GAS AND LIQUIDS CONTAINING GAS
FR2821144A1 (en) FLEXIBLE DUCT WITH ANTI-THRUST FILM
FR2899665A1 (en) "FLEXIBLE DRIVE WITH INTEGRATED END CAPS"
EP1492975B1 (en) Flexible tubular pipe comprising an elastomeric thermoplastic polymer sheath
WO2006030012A1 (en) Sealing device for sealing a well or a pipeline
FR2768487A1 (en) FLEXIBLE DRIVING STRUCTURE HAVING A CONTINUOUS METAL INTERIOR TUBE
FR2772108A1 (en) FLEXIBLE PIPE COMPRISING A DUAL-LAYER POLYMER SHEATH
BE1009248A3 (en) Duct flexible pvf3 and its application to metal flexible.
FR2935706A1 (en) Fluorinated polymer composition, used e.g. in pipe for conveying fluid pressure, comprises optionally plasticizer with fluoropolymer, shock modifying particles of core-shell type, and homopolymer or copolymer of vinylidene fluoride
EP0267818B1 (en) Flexible composite pipe for fluids under pressure
EP3439870A1 (en) Submarine pipe comprising a sheath comprising a polypropylene block copolymer
EP1154184B2 (en) Flexible pipe with rolled wire or band for the support of the reinforcement
FR2590646A1 (en) Flexible pipe especially making it possible to limit the intrusion of the internal sheath in the armouring
EP3899339B1 (en) Flexible pipe for conveying a fluid in a submarine environment, and associated method
EP1027550B1 (en) Improved flexible flowline for conveying fluids
FR2964173A1 (en) Flexible tubular structure for transporting fluids e.g. crude oil and petrol for offshore and onshore oil exploitations, comprises reinforcing layers, a layer of fluorinated polymeric compound, and a metallic frame
FR3104667A1 (en) Flexible underwater pipe comprising a layer comprising polymethylpentene
FR2520667A1 (en) FLEXIBLE WALL AND FLEXIBLE TUBE FOR HIGH PRESSURE FLUID

Legal Events

Date Code Title Description
ST Notification of lapse