WO2002035137A1 - Utilisation d'une composition d'isolation thermique pour l'isolation de canalisations contenues dans une conduite de transfert de produits petroliers - Google Patents
Utilisation d'une composition d'isolation thermique pour l'isolation de canalisations contenues dans une conduite de transfert de produits petroliers Download PDFInfo
- Publication number
- WO2002035137A1 WO2002035137A1 PCT/FR2001/003285 FR0103285W WO0235137A1 WO 2002035137 A1 WO2002035137 A1 WO 2002035137A1 FR 0103285 W FR0103285 W FR 0103285W WO 0235137 A1 WO0235137 A1 WO 0235137A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- use according
- composition
- polyisocyanate
- inert liquid
- insulating
- Prior art date
Links
Classifications
-
- 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
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/143—Pre-insulated pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/69—Polymers of conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/794—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aromatic isocyanates or isothiocyanates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
- Y10T428/1338—Elemental metal containing
Definitions
- the present invention relates to the use of a thermal insulation composition for the insulation of pipes contained in a pipe for transferring petroleum products. More particularly, the present invention relates to the use of such a composition for the insulation of pipes contained in an underwater pipe for transferring petroleum products, in particular that installed in the vicinity of very deep bottoms, of several hundred meters or more.
- subsea wells most often produce multiphase mixtures comprising liquid and gaseous hydrocarbons as well as water leaving at temperatures ranging from 30 ° C to 150 ° C, or even higher.
- the cold prevailing at such depths is liable to cause crystallization of paraffins, or even gas hydrates (methane hydrates) capable of clogging the pipes in which they circulate.
- hydrocarbons flow in a pipeline called a production column, from the bottom of the well to the surface.
- the pressure and the temperature are relatively high, for example 100 ° C. and 300 bars.
- these pressure and temperature decrease with, as a result that the temperature leaving the well is for example of the order of 30 ° C.
- This drop in temperature of the hydrocarbons in the production column has the effect of increasing the viscosity and density of these hydrocarbons, which can cause a slowdown in their flow. But also the drop in temperature can sometimes cause, as previously mentioned, the deposition on the column wall of crystallized paraffins. If it accumulates in the column, this deposit can cause serious operating problems such as slowing down of hydrocarbons, or even total obstruction of the column. Generally, if he wants to avoid these risks, the operator is obliged to treat this deposit phenomenon, either by prevention by injecting a chemical inhibiting the deposit, or by curative by scraping or scraping the column with - special equipment - or -heating it again by any means available. In all cases, these operations constitute a significant expenditure of money. This type of problem also occurs in the pipes that connect a wellhead to a remote treatment center. Blockages may also occur during technical stops in the transfer of said petroleum products.
- the high mechanical resistance of the coating required at great depths is accompanied by a significant increase in the density of the material used, this increase in density having a negative effect on its thermal insulation properties. It is then necessary to further increase the thickness of the coating in order to obtain the required thermal insulation, which makes this solution excessively expensive at great depths.
- the abrasion resistance of such a coating is insufficient for one to consider laying by towing pipes sheathed on the seabed.
- the technique is also known according to which they pass through a conventional protective tubular casing capable of withstanding hydrostatic pressure.
- This envelope allows the deposit of pipes thus protected by towing.
- the tubular envelope can contain several pipes, each one being coated with a thin and not very dense thermal insulation coating (polyurethane foam, polyethylene foam, glass wool, rock wool, etc.).
- a thin and not very dense thermal insulation coating polyurethane foam, polyethylene foam, glass wool, rock wool, etc.
- the steel casing cannot withstand hydrostatic pressure, unless the thickness is excessively increased, this ⁇ which increases the weight per linear meter at the expense of its buoyancy, which is necessary for its installation by towing.
- the internal space of the envelope is pressurized, lying between the coated pipe (s) and the envelope itself, with an inert gas such as nitrogen for example. It is then necessary to maintain the nitrogen pressure in the envelope during the entire operating life of the pipes which can last 20 years or more.
- the filling consists of a composite product from the family of so-called "syntactic" products. Such products differ from the materials mentioned above by their composition, their price and their low density.
- these products consist of microspheres, and possibly macrospheres, embedded in a matrix consisting of an epoxy resin, polyurethane or polypropylene.
- This filling material is characterized by the fact that it provides a thermal insulation function for the pipe (s) passing through the envelope, it resists a certain external hydrostatic pressure and it provides the assembly with driving the buoyancy required during its installation.
- the water used to put the underwater pipe under pressure with the underwater environment during its installation can be water from the underwater environment considered possibly containing a corrosion inhibitor.
- a corrosion inhibitor e.g., water from the underwater environment considered possibly containing a corrosion inhibitor.
- Water is a poor thermal insulator: its thermal conductivity is high and, moreover, it promotes convection cooling, its viscosity being very low.
- syntactic foams are likely to crack on installation and over time, thus causing thermal bridges and water passages, which deteriorates the insulating function of the foam.
- the Applicant proposes to use a thermal insulation composition for the insulation of pipes contained in a transfer pipe for petroleum products, and having in particular the required properties of mechanical resistance (bursting strength), thermal insulation and chemical resistance (currently resistance to corrosion and hydrolysis) and also having the conditions necessary for easy implementation.
- thermo insulation composition mechanically resistant to hydrostatic pressure for the insulation of pipes contained in an underwater oil product transfer pipe, designed in particular to be installed on or in the vicinity of a deep seabed.
- the present invention therefore relates to the use of a thermal insulation composition, preferably resistant to hydrostatic pressure, for the insulation of pipes contained in a petroleum product transfer pipe, preferably for the insulation of pipes contained in an underwater petroleum product transfer pipe installed on or near a seabed , great depth, said composition being characterized in that it consists of a crosslinkable and injectable insulating composition.
- the crosslinkable and injectable insulating composition according to the present invention comprises at least one diene polyol, at least one polyisocyanate of functionality> 2, optionally a crosslinking catalyst and a sufficient quantity of at least one inert liquid filler to have a viscosity of less than 500 mPa.s at the processing temperature of said composition.
- processing temperature designates the temperature at which said composition according to the invention is introduced into said pipe (underwater) in order to achieve its thermal insulation.
- This processing temperature is at least 4 ° C, and can reach 45 ° C or more.
- its viscosity can change but must advantageously remain less than about 500 mPa.s.
- the composition according to the present invention is in the form of a homogeneous rubbery solid having no exudation. According to the present invention, use will be made of a weight amount of chemically inert liquid filler greater than 80% and, preferably, an amount between 90% and 96% of the crosslinkable insulating composition.
- the chemically inert liquid filler 5 is an insulating liquid, capable of completely dissolving the polydiene polyols and the polyisocyanates, chosen from among the aklylbenzenes such as the decylbenzenes, the dodecylbenzenes; esters which are, for example, reaction products of polyvalent alcohols such as pentaerythritol with monovalent carboxylic acids such as n-heptanoic acid; alkyl phthalates such as dibutyl diethyl phthalate; aikylpolyaromatic compounds such as the mixture of isomers of dibenzyltoluene (DBT), monoisopropylbiphenyl
- DBT dibenzyltoluene
- MIPB phenyl-xylylethanes
- PXE phenyl-xylylethanes
- MIPB phenyl-xylylethanes
- PXE phenyl-xylylethanes
- MIPB phenyl-xylylethanes
- PXE phenyl-xylylethanes
- mixtures of benzyltoluenes and dibenzyltoluenes such as those described in particular in European patent No. 136230-B1
- (methylbenzyl) xylenes such as those described in European patent application No. 0500345; mixtures of benzyltoluene and - diphenylethane; mineral-naphthenic oils; vegetable oils such as rapeseed oil and corn oil, as well as the combination of at least two of the previously mentioned insulating liquids.
- DBT mixtures of benzyltoluenes and dibenzyltoluenes comprising from 50% to 90% by weight of benzyltoluenes (mixture of the o, m and p isomers) and from 50% to 10% by weight
- benzyltoluenes mixture of the o, m and p isomers
- dibenzyltoluenes or mixtures of isomers of mono- and bis (methylbenzyl) xylenes mixtures of isomers of mono- and bis (methylbenzyl) xylenes.
- the chemically inert liquid charge has a viscosity at 20 ° C at most equal to 200 mPa.s, and preferably between 4 and 100 mPa.s measured according to standard ASTM D 445.
- the polysiocyanate used can be chosen from aromatic, aliphatic, cycloaliphatic polyisocyanates and those which contain in their molecule an isocyanurate ring, having at least two isocyanate functions in their molecule, capable of reacting with hydroxyl functions of a polyol to form a three-dimensional polyurethane network causing the crosslinking of the composition.
- aromatic polyisocyanates which can be used according to the present invention, mention will be made of 4,4'-diphenylmethane diisocyanate (MDI), polymeric MDIs, triphenylmethane triisocyanate.
- IPDI isophorone diisocyanate
- CHDI cyclohexyldiisocyanate
- 4,4'-dicyclohexylmethane diisocyanate isophorone diisocyanate
- IPDI isophorone diisocyanate
- CHDI cyclohexyldiisocyanate
- 4,4'-dicyclohexylmethane diisocyanate 4,4'-dicyclohexylmethane diisocyanate.
- trimers of hexamethylene diisocyanate marketed by the company RHODIA UNDER the name TOLONATE HDT / let tris [1 - (rsôcyanotométhyD-1, 3,3- triméthylc ⁇ clôhe- xane] isocyanurate sold by the company HULS under the name VESTANAT T 1890/100.
- the amount of polyisocyanate according to the present invention is chosen in such a way that the NCO / OH molar ratio is close to 1 and preferably ranging from 0.85 to 1.20.
- the polydienic polyol is an oligomer of hydroxytelechelic conjugated dienes which can be obtained by various methods such as the radical polymerization of conjugated dienes having 4 to 20 carbon atoms in the presence of a polymerization initiator such as peroxide of hydrogen or an azo compound such as azobis-2,2 [methyl-2, N- (hydroxy-2ethyl! propionamide] or the anionic polymerization of conjugated dienes having 4 to 20 carbon atoms in the presence of a catalyst such as naphthalene dilithium.
- the conjugated diene of the polydiene polyol is chosen from the group comprising butadiene, isoprene, chloroprene, 1, 3-pentadiene and c ⁇ clopentadiene.
- the polydiene polyols can have molar masses in number at most equal to 7000 and preferably between 1000 and 3000. They have functionalities ranging from 1 to 5 and preferably ranging from 1, 8 to 3 and a dynamic viscosity measured at 30 ° C at least equal to 600 mPa.s.
- the composition may comprise, in addition to the polydiene polyol, one or more polyols of low molecular weight.
- low molecular weight polyol means polyols having molecular weights ranging from 50 to 800.
- polyols By way of illustration of such polyols, mention may be made of ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, polyether polyols, butane diol-1, 4, hexane diol-1, 6, 2-ethyl hexane - diol-1, 3, N, N bis (2-hydroxypropyDaniline, 3-methyl pentanediol- 1, 5, trimethylol propane, pentaerythritol, propoxylated bisphenol A sold by the company AKZO under the name DIANOL 320 and the mixture of at least two aforementioned polyols.
- the NCO / OH molar ratio must be calculated taking into account the hydrox ⁇ l functions provided by said low molecular weight polyol.
- a crosslinking catalyst it can be chosen from the group comprising tertiary amines, imidazoles and organometallic compounds.
- tertiary amines By way of illustration of tertiary amines, mention may be made of diaza-1, 4bicyclo [2.2.2] octane (DABCO), N, N, N ', N ", N" -pentamethyldiethylene triamine.
- DABCO diaza-1, 4bicyclo [2.2.2] octane
- organometallic compounds By way of illustration of organometallic compounds, mention may be made of tin dibutyldilaurate, tin dibutylacetate, organic derivatives of bismuth.
- the crosslinkable composition of the present invention can be produced by mixing, at room temperature (approximately 20 ° C.) the various constituents by any means of agitation sufficient to ensure good dispersion of the constituents.
- the composition may contain one or more additives such as antioxidants, corrosion inhibitors.
- the crosslinkable composition of the invention has the advantage of ensuring a thermal insulation function of the pipe or pipes passing through the pipe because it has a low thermal conductivity and that it prevents any convection. .
- the composition of the present invention is used very particularly for the thermal insulation of pipelines contained in an underwater petroleum product transfer pipe installed on or in the vicinity of a deep seabed.
- the crosslinkable composition of the invention has a density close to that of seawater from the seabed, which allows the underwater pipe containing it to have improved resistance to the hydrostatic pressure of the submarine site where said pipeline is installed.
- the crosslinkable composition of the invention liquid during its implementation, has a very low shrinkage during its crosslinking, which makes it possible to ensure perfect "wetting" of the pipes to be coated. Withdrawal is less than 1% in volume, or even less than 0.5% .
- • - Figure 1 is a schematic cross-sectional view of an underwater petroleum product transfer pipe containing the composition of the invention.
- the pipe shown comprises an envelope (1) which is generally made of steel and can be coated on the outside with an anti-corrosion coating (not shown in the figure); pipes (2), (3) and (4), the pipes (2) and (3) conveying petroleum products, the pipe (4) being a so-called service pipe; these pipes (2), (3) and (4) can also be coated externally with an anti-corrosion coating (not shown in the figure); (5) represents the space filled with the filling material which is constituted by a crosslinkable insulating composition. .
- the pipes (2), (3) and (4) can be arranged randomly but preferably as close as possible to the center of the pipe in which they can be held by shims not shown in the figure.
- Underwater petroleum product transfer pipes can be made in sections several meters long which are generally assembled by appropriate means on a shore near the petroleum site. Assembled, these pipes can be brought in different ways. They can be brought to the surface, between two waters, or pulled to the bottom of the sea. In all cases, it is necessary to adjust the buoyancy of the underwater pipe to allow its transport, immersion and positioning final.
- crosslinkable insulation composition of the present invention can be implemented by any suitable means.
- the composition has a viscosity of less than 200 mPa.s at the processing temperature which is at most equal to 45 ° C. Then, said composition is allowed to crosslink.
- the setting time which is the time necessary for the composition according to the present invention to be completely crosslinked, can vary to a large extent. However, this setting time must be adjusted in such a way that the composition according to the present invention can completely fill the (underwater) pipe and can perfectly wet the pipe (s) inside said pipe. conduct to insulate them.
- crosslinkable composition of the invention has the advantage of being able to adapt to the different cases mentioned above.
- composition of the present invention can also be used to perfect the thermal insulation of pipes already having a primary insulation coating.
- compositions were prepared using the following constituents: - PolyBd® R 45 HT (hereinafter referred to as PolyBd): hydroxylated polybutadiene with Mn equal to 2800 (determined by steric exclusion chromatography), having a hydroxyl index IQH expressed in milliequivalents per gram (meq / g) equal to 0.83, a viscosity equal to 5000 mPa.s at 30 ° C and a density equal to 0.90, - JARYTERM BT06 sold by the company ATOFINA (hereinafter designated by BT06): chemically inert liquid charge consisting of 75% by weight of benzyltoluenes and 25% by weight of dibenzyltoluenes having a viscosity at 20 ° C of 6.5 mPa.s measured according to standard ASTM D 445, - JARYTHERM AX320, marketed by ATOFINA
- XX chemically inert liquid charge comprising a mixture of mono and bis (methylbenzyl) xylenes having a viscosity at 20 ° C of 21.6 mPa.s measured according to standard ASTM D 445,
- DBT chemically inert liquid feed comprising a mixture of dibenzyltoluene isomers having a viscosity at 20 ° C. of 55 mPa.s measured according to standard ASTM D 445,
- Tolonate tris (6-isocyanatohexyl) isocyanurate, having an NCO content equal to 22%, a functionality of approximately 3.4 and a viscosity at 25 ° C equal to 2400 (+ / - 400) mPa.s,
- Voranol CP 455 sold by the company DOW CHEMICAL (hereinafter referred to as Voranol): polyether polyol with molecular weight equal to 450 having an IQH equal to 6.77 meq / g and a viscosity at 25 ° C equal to 330 mPa.s
- - Isonate M 143 sold by the company DOW CHEMICAL: polymeric MDI having an NCO content equal to 30%, a functionality equal to 2.2 and a viscosity at 20 ° C equal to 130 mPa .s,
- compositions can be obtained according to the following protocol which consists in separately preparing a first mixture A containing at least one inert liquid filler and at least one di- or polyisocyanate and a second part B containing at least one dienic polyol and, optionally a polycondensation accelerator, hereinafter designated catalyst, so that an NCO / OH molar ratio ranging from 0.85 to 1.20 is obtained.
- a and B are mixed in a device ensuring good mixing of the 2 parts (such as a static mixer), then the compositions are left at room temperature (20 ° C.) and the viscosity is recorded as a function of time.
- Another method of preparing the compositions of the invention consists in simultaneously mixing the various constituents using a device ensuring good mixing of the constituents and the compositions are abandoned as before at room temperature and the viscosity is recorded as a function of the time.
- Tp time taken in days or hours is noted, which corresponds to the moment when the composition is completely crosslinked. Viscosity measurements as a function of time and measurements of the setting time Tp were also carried out at temperatures above ambient temperature.
- Table 1 indicates the constituents - nature and percentage (expressed by weight) - of the compositions, the setting time Tp at a given temperature as well as the reference to the graphs indicating the viscosity (in mPa.s) as a function of time at a temperature data T in ° C.
- ** T (° c) indicates the temperature in ° C at which the viscosity as a function of time was measured.
- the invention is not limited to the thermal protection of pipes such as those referenced (2), (3) and (4) of Figure 1.
- pipes containing any number of pipes and service lines which may further include power supply lines, various fluids such as water, gas, and control lines for well heads installed on the seabed.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002426816A CA2426816A1 (fr) | 2000-10-27 | 2001-10-23 | Utilisation d'une composition d'isolation thermique pour l'isolation de canalisations contenues dans une conduite de transfert de produits petroliers |
AU2002214088A AU2002214088A1 (en) | 2000-10-27 | 2001-10-23 | Use of a thermally insulating composition for insulating pipes contained in a duct transferring petroleum products |
US10/415,276 US20040048015A1 (en) | 2000-10-27 | 2001-10-23 | Use of a thermally insulating composition for insulating pipes contained in a duct transferring petroleum products |
MXPA03003654A MXPA03003654A (es) | 2000-10-27 | 2001-10-23 | Utilizacion de una composicion termicamente aislante para el aislamiento de canalizaciones contenidas en un conducto de transferencia de productos petroliferos. |
EP01982532A EP1328751A1 (fr) | 2000-10-27 | 2001-10-23 | Utilisation d'une composition d'isolation thermique pour l'isolation de canalisations contenues dans une conduite de transfert de produits petroliers |
NO20031874A NO20031874L (no) | 2000-10-27 | 2003-04-25 | Anvendelse av en termisk isolerende blanding for isolasjon av rör i en kanal for overföring av oljeprodukter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0013808A FR2816030B1 (fr) | 2000-10-27 | 2000-10-27 | Utilisation d'une composition d'isolation thermique pour l'isolation de canalisations contenues dans une conduite de transfert de produits petroliers |
FR00/13808 | 2000-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002035137A1 true WO2002035137A1 (fr) | 2002-05-02 |
Family
ID=8855811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/003285 WO2002035137A1 (fr) | 2000-10-27 | 2001-10-23 | Utilisation d'une composition d'isolation thermique pour l'isolation de canalisations contenues dans une conduite de transfert de produits petroliers |
Country Status (9)
Country | Link |
---|---|
US (1) | US20040048015A1 (fr) |
EP (1) | EP1328751A1 (fr) |
AU (1) | AU2002214088A1 (fr) |
CA (1) | CA2426816A1 (fr) |
FR (1) | FR2816030B1 (fr) |
MX (1) | MXPA03003654A (fr) |
NO (1) | NO20031874L (fr) |
OA (1) | OA12432A (fr) |
WO (1) | WO2002035137A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO321068B1 (no) * | 2004-05-28 | 2006-03-13 | Nexans | Umbilical-kabel |
DE102005053101A1 (de) * | 2005-11-04 | 2007-05-10 | Basf Ag | Gedämmte Rohre |
EP1918248A3 (fr) * | 2006-10-29 | 2010-06-09 | Silicon Fire AG | Préparation d'H2O2 à partir d'acide sulfurique, obtenu par combustion de matières combustibles fossiles contenant de résidus de soufre, et utilisation de H2O2 en tant que source d'énergie |
KR101492284B1 (ko) * | 2007-04-02 | 2015-02-11 | 바스프 에스이 | 절연 파이프 |
WO2015081080A1 (fr) * | 2013-11-26 | 2015-06-04 | Basf Se | Agent de soutènement |
BR112016011646B1 (pt) | 2013-11-26 | 2021-09-14 | Basf Se | Composição elastomérica de poliuretano flexível, estrutura submarina, e, método de formação de uma composição elastomérica de poliuretano |
CN114057951B (zh) * | 2021-11-22 | 2024-03-12 | 浙江深孚新材料科技有限公司 | 一种聚氨酯复合柔性浮力材料 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5587117A (en) * | 1994-02-17 | 1996-12-24 | Bayer Aktiengesellschaft | Process for insulating pipes using polyurethane rigid foams by the rotational casting process |
FR2769682A1 (fr) * | 1997-10-10 | 1999-04-16 | Doris Engineering | Conduite sous-marine de transfert de produits petroliers |
EP0960723A2 (fr) * | 1998-05-27 | 1999-12-01 | Basf Aktiengesellschaft | Eléments composites comprenant des produits de polyaddition de polyisocyanate |
WO2000039497A1 (fr) * | 1998-12-28 | 2000-07-06 | Shell Internationale Research Maatschappij B.V. | Conduites preisolees et leur procede de production |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3326821A (en) * | 1963-05-27 | 1967-06-20 | Air Prod & Chem | Cellular polyurethanes from organic isocyanates, high molecular weight polyether polyols and lower molecular weight hydroxy containing oxo bottoms |
FR2734392B1 (fr) * | 1995-05-19 | 1997-06-20 | Atochem Elf Sa | Composition dieletrique reticulable |
-
2000
- 2000-10-27 FR FR0013808A patent/FR2816030B1/fr not_active Expired - Fee Related
-
2001
- 2001-10-23 MX MXPA03003654A patent/MXPA03003654A/es not_active Application Discontinuation
- 2001-10-23 US US10/415,276 patent/US20040048015A1/en not_active Abandoned
- 2001-10-23 OA OA1200300125A patent/OA12432A/fr unknown
- 2001-10-23 EP EP01982532A patent/EP1328751A1/fr not_active Withdrawn
- 2001-10-23 AU AU2002214088A patent/AU2002214088A1/en not_active Abandoned
- 2001-10-23 WO PCT/FR2001/003285 patent/WO2002035137A1/fr not_active Application Discontinuation
- 2001-10-23 CA CA002426816A patent/CA2426816A1/fr not_active Abandoned
-
2003
- 2003-04-25 NO NO20031874A patent/NO20031874L/no not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5587117A (en) * | 1994-02-17 | 1996-12-24 | Bayer Aktiengesellschaft | Process for insulating pipes using polyurethane rigid foams by the rotational casting process |
FR2769682A1 (fr) * | 1997-10-10 | 1999-04-16 | Doris Engineering | Conduite sous-marine de transfert de produits petroliers |
EP0960723A2 (fr) * | 1998-05-27 | 1999-12-01 | Basf Aktiengesellschaft | Eléments composites comprenant des produits de polyaddition de polyisocyanate |
WO2000039497A1 (fr) * | 1998-12-28 | 2000-07-06 | Shell Internationale Research Maatschappij B.V. | Conduites preisolees et leur procede de production |
Also Published As
Publication number | Publication date |
---|---|
NO20031874L (no) | 2003-05-19 |
MXPA03003654A (es) | 2004-05-04 |
FR2816030B1 (fr) | 2003-05-16 |
FR2816030A1 (fr) | 2002-05-03 |
AU2002214088A1 (en) | 2002-05-06 |
CA2426816A1 (fr) | 2002-05-02 |
NO20031874D0 (no) | 2003-04-25 |
US20040048015A1 (en) | 2004-03-11 |
EP1328751A1 (fr) | 2003-07-23 |
OA12432A (en) | 2006-05-22 |
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