EP1523524A1 - Compositions pour nouveaux revetements pour conduites hautes temperatures - Google Patents
Compositions pour nouveaux revetements pour conduites hautes temperaturesInfo
- Publication number
- EP1523524A1 EP1523524A1 EP03763916A EP03763916A EP1523524A1 EP 1523524 A1 EP1523524 A1 EP 1523524A1 EP 03763916 A EP03763916 A EP 03763916A EP 03763916 A EP03763916 A EP 03763916A EP 1523524 A1 EP1523524 A1 EP 1523524A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- composition according
- coating
- particles
- filler
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08L71/12—Polyphenylene oxides
- C08L71/123—Polyphenylene oxides not modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
Definitions
- the present invention relates to polymer compositions and their use in particular for coating pipes, preferably for coating hydrocarbon transport tubes used for the offshore exploitation of oil fields.
- the main role of the coating deposited outside the pipe on the metal is to protect the latter against corrosion induced by seawater, but the coating must also provide a role of protection against mechanical damage to the tube during installation or in contact with the seabed.
- Current developments in offshore petroleum, in particular the exploitation of high temperature fields where the temperature of the transported effluent exceeds 130 ° C, on the other hand impose on tube coating systems even more demanding specifications.
- the external anticorrosion coatings for transport tubes must be deposited on the steel by a conventional process, but limited in temperature to 250 ° C so as not to modify the microstructure of the steel.
- environmental constraints require the use of non-polluting materials and processing methods.
- the coating must have excellent stability, adhesion to steel and compatibility with cathodic protection systems at the temperature of use in seawater.
- most of the coatings conventionally used for example certain powders based on epoxy resin sprayed on hot pipe, or polyolefins deposited in strip by extrusion, or polyurethanes cast on rotating pipe, do not withstand a temperature of use higher than 130 ° C continuously. Such a temperature generally results in deformation of the polymer and a loss of adhesion thereof with respect to the metal used in the composition of the pipe. Consequently, it is necessary to meet the needs of the market to push the current technological limits in terms of coating to a resistance at temperatures at least greater than or equal to 140 ° C.
- US Patent 6,239,232 describes for example a composition used for coating pipes allowing not only a high temperature of use (generally up to 180 ° C) but also, thanks to the introduction of a modified resin, to lower the processing temperature of the composition on the metal pipe between 180 ° C and 250 ° C approximately.
- the present invention relates to a composition suitable for application as a coating for a high temperature petroleum line, comprising at least one thermoplastic polymer chosen from the group formed by polyphenylen ether and polysulfones, alone or as a mixture, with at least one epoxy resin modified with at least one aromatic polyamine, said resin being formed from at least one polyepoxide containing in its molecule at least 2 epoxy groups and the aromatic polyamine containing in its molecule at least 2 primary amino groups, the ratio molar of the polyamine to the epoxide being such that, for each amino group, it corresponds from 1.6 to 2.6 epoxide groups, and at least one filler, preferably mineral, a filler in the form of particles having an anisometric morphology , preferably chosen from the group consisting of silicates in general, such as certain magnesium or alumina silicates, in particular kaolin, and micaceous iron oxides.
- at least one thermoplastic polymer chosen from the group formed by polyphenylen ether and
- anisometric (or non-isometric) morphology it is understood within the meaning of the present invention that said particles have a morphology preferably extending in one or two directions in space.
- the fillers which can be used according to the present invention can for example be in the form of fibrous, lamellar particles, or preferably in the form of sheets.
- the average size of said particles can be between 1 and 250 ⁇ m, preferably between 1 and 100 ⁇ m, and very preferably between 1 and 50 ⁇ m.
- the kaolin particles will advantageously have, depending on their longest length, sizes between 1 and 30 ⁇ m, preferably between 3 and 10 ⁇ m.
- said micaceous iron oxide particles will advantageously have, depending on their longest length, sizes of between 1 and 60 ⁇ m. In general, the particles advantageously have a great length greater than about 10 ⁇ m.
- Said particles may have a form factor, defined by the ratio between their greatest length and their shortest length, of between approximately 5 and 500, limits included, preferably between approximately 5 and 100, limits included, and most often between approximately 10 and 50, limits included, for example, between approximately 10 and 20, or between 20 and 40, limits included.
- a form factor defined by the ratio between their greatest length and their shortest length, of between approximately 5 and 500, limits included, preferably between approximately 5 and 100, limits included, and most often between approximately 10 and 50, limits included, for example, between approximately 10 and 20, or between 20 and 40, limits included.
- the present invention is not limited to the values of the form factor as previously described and these can in particular vary depending on the chemical composition of the filler used. Said values may in this case be adjusted according to any known technique, in particular by comparative tests relating to particles of known dimensions.
- the volume concentration of said particles in the matrix can be between 1% and 50%, preferably between 5 and 40 and most often between 10% and 30%.
- One or more types of particles according to the invention which differ in their chemical nature and / or their average size and / or their form factor can be incorporated into the same composition in order to improve the properties described above.
- the mixture of several types of particles having mean sizes and / or different form factors can allow optimization of the composition according to the invention.
- the weight ratio between on the one hand the thermoplastic polymer and on the other hand the epoxy resin and the aromatic polyamine or the precursors thereof may advantageously be between 70/30 and 30/70, and preferably between 60/40 and 40/60.
- the invention further relates to a coating obtained by applying to a generally metallic support a composition according to one of the compositions as previously described. Alternatively, the coating is applied to the exterior surface of a pipe.
- compositions or coatings can be used in the field of petroleum exploitation, transport of hydrocarbons or refining.
- the epoxy resin which is used in the context of the present invention is most often chosen from the group formed by the following commercial resins: the diglycidyl ether resin of bis-phenol-A or bis-phenol-F, the resin of bis-phenol formaldehyde, phenol-novolak resin, cycloaliphatic resins, tri- or tetrafunctional resins, resins formed from triglycidylether-isocyanurate and / or triglycidylether-cyanurate and / or triglycidyl-cyanurate and / or triglycidyl- isocyanurate or mixtures of at least two of these resins.
- the epoxy resins obtained from epoxy compounds cited in US Pat. No. 4,921,047 can also be used in the context of the present invention.
- aromatic polyamines used in the context of the present invention to modify epoxy resins one can consider a first series of aromatic amines comprising a single aromatic nucleus such as, for example, 3,5-diethyl-2,4-diaminotoluene, 3,5-diethyl-2,6-diaminotoluene and mixtures of these two isomers. Most often, a mixture of these two isomers is used, which is generally called DETDA.
- DETDA a mixture of these two isomers
- amines comprising at least two aromatic rings, these two aromatic rings being generally connected to each other by a bivalent, linear hydrocarbon residue or branched, having from 1 to 18 carbon atoms. These two aromatic rings are either linked by a bivalent alkyl group, or linked to each other by a linear or branched bivalent hydrocarbon residue having from 6 to 18 carbon atoms and comprising an aromatic ring.
- the aromatic polyamine can also contain at least one substituent chosen from the group formed by fluorine, iodine, bromine and chlorine. It preferably comprises at least two alkyl substituents, each being on either side of an amino group.
- this residue will preferably be an unsubstituted methylidene group, or substituted by at least one radical chosen from alkyl radicals and haloalkyl radicals having from 1 to 3 carbon atoms.
- this alkylene residue will be chosen from the group formed by the methylidene group, the isopropylidene group, the haloisopropylidene groups and the hexafluoroisopropylidene group.
- the amine is preferably chosen from the group formed by:
- the amine has two aromatic rings which are connected to each other by a bivalent hydrocarbon residue substituted or not substituted having from 6 to 18 carbon atoms and comprising an aromatic ring, it will preferably be chosen from the group formed by:
- compositions according to the present invention may also contain catalysts active in the reaction between the epoxy resins and the hindered aromatic polyamines.
- the most often used active catalysts are imidazoles, tertiary amines and complexes based on trifluorinated boron.
- additives chosen most often from the group formed by antioxidants, pigments, adhesion promoters, stabilizers for heat, radiation and more particularly to ultraviolet radiation, flame retardants, release agents, dispersing agents, lubricants, dyes, plasticizers, flame retardants, bridging agents, surfactants, surfactants, reinforcing agents, mineral or organic reinforcing fibers, such as for example glass, carbon or boron fibers.
- EXAMPLE 1 In this example, a polymer composition comprising a polyphenylene ether and a modified epoxy resin was prepared.
- the modified epoxy resin comprises 8.016 kg of diglycidyl ether of bis-phenol-A (DGEBA), sold under the reference LY556 by the company CIBA-GEIGY and 3.984 kg of 4,4'-methylene-bis (3-chloro-2,6 - diethylaniline) (MCDEA), sold by the company LONZA.
- DGEBA diglycidyl ether of bis-phenol-A
- MCDEA 4,4'-methylene-bis (3-chloro-2,6 - diethylaniline)
- this mixture produced in stoichiometry is heated to 80 ° C. with stirring.
- the reaction progress of this mixture was measured by size exclusion chromatography.
- the reactivity is very low: 5 hours at 60 ° C. lead to a reaction advancement of 1%.
- the polyphenylene ether or PPE used is sold by the company GENERAL ELECTRIC under the reference Blendex HPP820, its number average molecular mass is 12,000 g / mol.
- the modified epoxy resin is introduced into the extruder by a piston pump at a constant flow rate of 1.30 kg / h.
- the polyphenylene ether is introduced by means of a weight metering device at a flow rate of 2.00 kg / h, to obtain a composition containing 40% by mass of modified epoxy resin, this percentage of modified epoxy resin being calculated relative to the composition total.
- the temperature for processing the mixture is approximately 180 ° C.
- the reference composition noted PPE60
- the reference composition was deposited on steel at a temperature of 220 ° C. and then brought to annealing at 220 ° C. for 2 hours.
- the composition was pressed into a mold under a pressure of 5 MPa to form a plate with a thickness of 2.10 m and a surface of 120.10 "3 mx 120.10 " 3 m, then brought to annealing at 220 ° C for 2 hours. , so as to subsequently cut from the plate test pieces in order to determine the thermomechanical properties of the composition, as well as coupons in order to determine the resistance to seawater.
- the adhesion properties of the composition according to the example were determined by the tensile-shear breaking method (ASTM D1002). To determine the adhesion, three steel test pieces, previously stripped with a stainless steel brush rotating at high speed, are glued. The bonding surface is 25,4.10 "3 mx 12,7.10 -3 m and the thickness of the adhesive joint formed by the said composition is 125 micrometres. The bonding is carried out by simple contact at 220 ° C which corresponds to a easy processing temperature, then the different test pieces are annealed for 2 hours at 220 ° C.
- Examples 1.1 to 1.3 of Table 1a relate to the three test pieces tested in tension-shear for the reference composition PPE60, and Example 1.4 is the average of the previous results. For each test piece, the maximum load applicable before failure was determined. By relating this value to the bonding surface, the tensile-shear breaking stress is deduced. TABLE 1a
- thermomechanical properties of the polymer composition according to the example were determined by a DMTA analysis (Dynamic Mechanical Thermal Analysis), in simple embedding. The measurement was carried out on a 2.10 "3 m thick test piece molded and annealed as above. The values of the elastic modulus are measured as a function of the temperature at a frequency of 1 Hz using a DMTA device of the Polymer Laboratories.
- the elastic moduli E 'at 25 ° C, 150 ° C, 180 ° C and 220 ° C were measured on the reference composition PPE60 according to the example. These values are recorded in Table 1b.
- the elasticity modules reflect the rigidity of the materials. According to these results, the reference composition has up to approximately 180 ° C. sufficient rigidity for application as a coating, but not beyond.
- a seawater resistance test was also carried out.
- the 2.10 "3 m thick molded plate of the composition according to the example and annealed was cut in the form of surface coupons 50.10 " 3 mx 50.10 "3 m.
- Two samples were immersed in synthetic sea water contained in a sealed reactor, heated to 160 ° C, at an absolute pressure of 0.62 MPa.
- Measures of water absorption (or water uptake), expressed by the mass of water absorbed (expressed as a percentage mass) per hundred grams of coating, were carried out by determining the variation in mass of the samples after 2 months and 4 months of immersion The average results are given in Table 1c.
- test pieces according to the reference composition undergo no obvious deformation after 4 months of immersion at 160 ° C and have an almost completely unaltered appearance.
- the water uptake of the reference composition PPE60 is unchanged between 2 months and 4 months of immersion, signifying that the saturation equilibrium has been reached.
- Example 2 is in accordance with the invention.
- a composition was prepared based on the reference composition PPE60 described in Example 1 and kaolin, having an anisometric morphology.
- the kaolin (calcined alumina silicate) used is sold by the company OMYA under the reference kaolin 2211. Its specific density is 2.63 g / cm 3 .
- the average particle size is 1.4 micrometers.
- the mixture between the PPE60 and the kaolin was carried out in an extruder brought to the temperature of 180 ° C.
- Granules of PPE60 obtained after a first passage in an extruder according to the protocol described in Example 1 were introduced by a piston pump at a constant flow rate of 2.00 kg / h.
- Kaolin is introduced by means of a weight metering device at a flow rate of 1.20 kg / h to obtain a composition containing 20% by volume of kaolin relative to the total composition.
- Example 2 After extrusion, the composition of Example 2 according to the invention was used and annealed according to the same protocols as those described in Example 1 in order to measure its adhesion to steel, its thermomechanical behavior, its resistance to sea water, and its aging behavior.
- the form factor of most of said particles, measured from scanning electron microscopy images on said composition after said annealing is between 10 and 20.
- composition according to the present invention exhibits a very good average tensile stress at shear, suitable for use as a coating for oil pipes, since the values relating to the three test pieces are all at least equal to 15 MPa.
- thermomechanical properties of the composition of example 2 in accordance with the invention were determined by a DMTA analysis in simple embedding according to the same process as in example 1.
- Example 2 The elasticity modules reflect the rigidity of the materials. According to these results, the composition of Example 2 according to the invention has at least up to 220 ° C. a rigidity sufficient for a coating application.
- Example 2 A series of tests measuring the resistance to seawater was carried out on the composition according to the invention of Example 2 from measurements gravimetric according to the same process as in Example 1. The water absorption measurements carried out by determining the variation in mass of the samples after 2 and 4 months of immersion are reported in Table 2c.
- test pieces of Example 2 according to the invention undergo no obvious deformation after 4 months of immersion at 160 ° C. and have a completely unaltered appearance.
- the water uptake of the composition of Example 2 according to the invention is stable between 2 months and 4 months of immersion, signifying that the saturation equilibrium is reached.
- the water uptake of the composition of Example 2 according to the invention is particularly low.
- Example 3 is also in accordance with a variant of the invention.
- a composition was prepared based on the reference composition PPE60 described in Example 1 and a micaceous iron oxide of anisometric morphology.
- the micaceous iron oxide used is sold by the company Kartner under the reference MIOX SF. Its specific gravity is 4.80 g / cm3. 15% of the particles have an average size of less than 44 micrometers and 30% of the particles have an average size of less than 32 micrometers, all of the particles having an average size of less than 74 micrometers.
- the mixture between PPE60 and micaceous iron oxide was carried out in the extruder brought to the temperature of 180 ° C.
- the granules of PPE60 obtained after a first passage through the extruder according to the protocol described in Example 1 were introduced by a piston pump at a constant flow rate of 2 kg / h.
- Micaceous iron oxide is introduced by means of a weight metering device at a flow rate of 2.20 kg / h to obtain a composition containing 20% by volume of micaceous iron oxide relative to the total composition.
- the composition according to the example was implemented and annealed according to the protocols described in Example 1 in order to measure its adhesion to steel, its thermomechanical behavior, its resistance to sea water, and its behavior in aging.
- the form factor of most of said particles, measured from scanning electron microscopy images on said composition after said annealing, is between 20 and 40.
- composition according to the present invention exhibits a very good average tensile stress at shear, suitable for use as a coating for oil pipes, the values relating to the three test pieces being all at least equal. at 20 MPa.
- thermomechanical properties of the composition of Example 3 according to the invention were determined by a DMTA analysis in simple embedding according to the same process as in Example 1.
- Example 3 The elasticity modules reflect the rigidity of the materials. According to these results, the composition of Example 3 according to the invention has sufficient rigidity for a coating application at least up to 220 ° C.
- Example 3 A series of tests of resistance to seawater was also carried out on the composition according to the invention of Example 3 from gravimetric measurements according to the same process as in Example 1.
- the absorption measurements of the water produced by determining the variation in mass of the samples after 2 and 4 months of immersion are shown in Table 3c.
- test pieces of Example 3 according to the invention undergo no obvious deformation after 4 months of immersion at 160 ° C and have a completely unaltered appearance.
- the water uptake of the composition of Example 3 according to the invention is stable between 2 months and 4 months of immersion, signifying that the equilibrium of saturation is reached.
- the water uptake of the composition of Example 3 according to the invention is particularly low.
- Example 4 is in accordance with another variant of the invention.
- a composition was prepared based on the reference composition PPE60 described in example 1 and a mixture of kaolin and micaceous iron oxide, described respectively in examples 2 and 3.
- the mixture between PPE60, micaceous iron oxide and kaolin was carried out in the extruder brought to the temperature of 180 ° C.
- the granules of PPE60 obtained after a first passage through the extruder according to the protocol described in Example 1 were introduced by a piston pump at a constant flow rate of 2.00 kg / h.
- the micaceous iron oxide and the kaolin previously mixed in a 15/85 ratio by volume are introduced using a weight metering device at a flow rate of 1.30 kg / h to obtain a composition containing 20% by volume of particles with morphology. anisometric with respect to the total composition.
- Example 4 After extrusion, the composition according to Example 4 was used and annealed according to the protocols described in Example 1 in order to 19
- Example 4 exhibits a very good average tensile stress at shear, suitable for use as a coating for oil pipes, the values relating to the three test pieces being all at least equal to 20 MPa.
- thermomechanical properties of the composition of Example 4 in accordance with the invention were determined by a DMTA analysis in simple embedding according to the same process as in Example 1.
- Example 4 The elasticity modules reflect the rigidity of the materials. According to these results, the composition of Example 4 according to the invention has at least up to 220 ° C. a rigidity sufficient for a coating application.
- Example 4 A series of tests of resistance to sea water was also carried out on the composition of Example 4 in accordance with the invention from gravimetric measurements according to the same process as in Example 1. The measurements of water absorption carried out by determining the variation in mass of the samples after 2 and 4 months of immersion are reported in Table 4c.
- Example 4 according to the invention undergo no obvious deformation after 4 months of immersion and have a completely unaltered appearance.
- the water uptake of the composition of Example 4 according to the invention is stable between 2 months and 4 months of immersion, signifying that the equilibrium of saturation is reached. Note that the water uptake of the composition of Example 4 according to the invention is particularly low.
- Example 5 is not in accordance with the invention.
- a composition was prepared based on the reference composition PPE60 described in Example 1 and particles of Zinc Phosphate, a filler with a substantially isometric morphology.
- the Zinc Phosphate used is sold by SNCZ under the reference Phosphinal PZ04. Its specific gravity is 3.30 g / cm 3 .
- the zinc phosphate is in the form of a solid powder with an average particle size of the order of a micron and a form factor close to 1.
- the mixture between PPE60 and zinc phosphate was carried out in the extruder brought to the temperature of 180 ° C.
- the granules of PPE60 obtained after a first passage through the extruder according to the protocol described in Example 1 were introduced by a piston pump at a constant flow rate of 2 kg / h.
- Zinc phosphate was introduced using a weight metering device at a flow rate of 1.50 kg / h to obtain a composition containing 20% by volume relative to the total composition of zinc phosphate particles with a substantially isometric morphology.
- Example 5 After extrusion, the composition according to Example 5 was used and annealed according to the protocols described in Example 1 in order to measure its adhesion to steel, its thermomechanical behavior, its resistance to seawater, and its aging behavior.
- Comparative Example 5 has a very good average tensile stress at break-shear, since the values relating to the three test pieces are all at least equal to 15 MPa.
- thermomechanical properties of the composition of Comparative Example 5 were determined by a DMTA analysis in simple embedding according to the same process as in Example 1.
- the elasticity modules reflect the rigidity of the materials. According to these results, the composition of Comparative Example 5 has sufficient rigidity for a coating application at least up to 220 ° C.
- the test pieces of Comparative Example 5 undergo a manifest deformation after 2 and 4 months of immersion at 160 ° C and have a substantially altered appearance (blistering and cracking).
- the water uptake of the composition of Comparative Example 5 increases between 2 months and 4 months of immersion, signifying that the saturation equilibrium is not reached.
- Examples 1 to 5 demonstrate the possibility of producing compositions from the thermoplastic Polyphenylene ether and modified resins while respecting a temperature at which the deposition of these compositions on the steel is carried out below 250 ° C. and which lead to good adhesion to steel - in these examples the tensile-shear breaking stress is at least 15 MPa.
- examples 2 to 4 demonstrate that the introduction of an anisometric filler into the polymer composition considerably improves the rigidity of the coating over the whole temperature range (gain in higher modulus or equal to 100% between 25 ° C and 180 ° C), and also makes it possible to envisage applying the coating at higher temperatures, between 180 ° C and 220 ° C (gain in modulus greater than or equal to 200% at 200 ° C), which is not possible for the reference composition.
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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)
- Paints Or Removers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0208713 | 2002-07-11 | ||
FR0208713A FR2842206B1 (fr) | 2002-07-11 | 2002-07-11 | Compositions pour nouveaux revetements pour conduites hautes temperatures |
PCT/FR2003/001719 WO2004007612A1 (fr) | 2002-07-11 | 2003-07-02 | Compositions pour nouveaux revetements pour conduites hautes temperatures |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1523524A1 true EP1523524A1 (fr) | 2005-04-20 |
Family
ID=29763731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03763916A Withdrawn EP1523524A1 (fr) | 2002-07-11 | 2003-07-02 | Compositions pour nouveaux revetements pour conduites hautes temperatures |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060167188A1 (fr) |
EP (1) | EP1523524A1 (fr) |
FR (1) | FR2842206B1 (fr) |
NO (1) | NO20045495L (fr) |
WO (1) | WO2004007612A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060189752A1 (en) * | 2005-02-18 | 2006-08-24 | Krueger David C | Composition and method for forming an article having improved properties |
RU2471822C1 (ru) * | 2011-07-05 | 2013-01-10 | Государственное образовательное учреждение высшего профессионального образования Саратовский государственный технический университет "СГТУ" | Способ получения полимерного пресс-материала |
ES2565307T3 (es) * | 2011-12-20 | 2016-04-01 | Dow Global Technologies Llc | Una composición de rotomoldeo |
CN107688718B (zh) * | 2017-09-15 | 2022-11-18 | 中国核电工程有限公司 | 一种避免使用阻尼器的高温管道抗动力载荷的设计方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1329662C (fr) * | 1986-09-30 | 1994-05-17 | Taichi Nishio | Composition de resine thermoplastique |
JPH04351626A (ja) * | 1991-05-29 | 1992-12-07 | Kanegafuchi Chem Ind Co Ltd | 硬化性樹脂組成物 |
US5703178A (en) * | 1995-11-30 | 1997-12-30 | Ameron International Corporation | Heat ablative coating composition |
FR2753978B1 (fr) * | 1996-09-30 | 1999-05-14 | Inst Francais Du Petrole | Composition thermodurcissable, ses utilisations et preforme souple depliable comprenant cette composition |
FR2773809B1 (fr) * | 1998-01-22 | 2000-03-17 | Inst Francais Du Petrole | Compositions de polymeres, leurs preparations et leurs utilisations |
US6349747B1 (en) * | 1998-01-22 | 2002-02-26 | Institut Francais Du Petrole | Use of polymer compositions for coating surfaces, and surface coating comprising such compositions |
FR2839975B1 (fr) * | 2002-05-23 | 2005-09-02 | Inst Francais Du Petrole | Composition thermodurcissable comprenant une resine epoxyde modifiee par une polyamine aromatique et au moins un agent de porosite |
-
2002
- 2002-07-11 FR FR0208713A patent/FR2842206B1/fr not_active Expired - Fee Related
-
2003
- 2003-07-02 US US10/520,678 patent/US20060167188A1/en not_active Abandoned
- 2003-07-02 WO PCT/FR2003/001719 patent/WO2004007612A1/fr active Application Filing
- 2003-07-02 EP EP03763916A patent/EP1523524A1/fr not_active Withdrawn
-
2004
- 2004-12-16 NO NO20045495A patent/NO20045495L/no not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2004007612A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20060167188A1 (en) | 2006-07-27 |
WO2004007612A1 (fr) | 2004-01-22 |
FR2842206B1 (fr) | 2007-03-23 |
NO20045495L (no) | 2005-02-11 |
FR2842206A1 (fr) | 2004-01-16 |
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