WO2009128971A1 - Process for making fiber reinforced plastic pipe - Google Patents
Process for making fiber reinforced plastic pipe Download PDFInfo
- Publication number
- WO2009128971A1 WO2009128971A1 PCT/US2009/032594 US2009032594W WO2009128971A1 WO 2009128971 A1 WO2009128971 A1 WO 2009128971A1 US 2009032594 W US2009032594 W US 2009032594W WO 2009128971 A1 WO2009128971 A1 WO 2009128971A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- epoxy resin
- resin composition
- epoxy
- void space
- viscosity
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229920002430 Fibre-reinforced plastic Polymers 0.000 title description 4
- 239000011151 fibre-reinforced plastic Substances 0.000 title description 4
- 239000003822 epoxy resin Substances 0.000 claims abstract description 109
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 109
- 239000000203 mixture Substances 0.000 claims abstract description 94
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 239000004593 Epoxy Substances 0.000 claims abstract description 27
- 239000011800 void material Substances 0.000 claims abstract description 27
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 claims abstract description 21
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 21
- 239000004848 polyfunctional curative Substances 0.000 claims abstract description 17
- 238000005470 impregnation Methods 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 150000002118 epoxides Chemical class 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 13
- 229920003023 plastic Polymers 0.000 abstract description 13
- 239000003365 glass fiber Substances 0.000 description 33
- 239000003795 chemical substances by application Substances 0.000 description 8
- 125000003700 epoxy group Chemical group 0.000 description 7
- 238000001723 curing Methods 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical class C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004366 reverse phase liquid chromatography Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000000825 ultraviolet detection Methods 0.000 description 1
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
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
- F16L9/128—Reinforced pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
-
- 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
- B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
-
- 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.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
-
- 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.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
Definitions
- the instant invention is in the field of fiber reinforced epoxy plastic pipe. More specifically the instant invention relates to the use of modified epoxy resins in the manufacture of such pipe.
- Fiber reinforced plastic pipe is superior to pipe made of a metal, such as steel, for many applications.
- the initially decreased viscosity of the epoxy resin composition facilitates optimum impregnation of and coating of the glass fibers by the epoxy resin composition. However, if the initially decreased viscosity of the epoxy resin composition is too low, then the epoxy resin composition will drip from the glass fibers and the quality of the finished pipe will be decreased. And, if the initially decreased viscosity of the epoxy resin composition is too high, then the epoxy resin composition will not completely impregnate the glass fibers and the quality of the finished pipe will be decreased.
- the above-mentioned USP 5,106,443 disclosed an epoxy resin composition comprising a unique curing agent to optimize such a process. It would be an advance in the art if an epoxy resin composition comprising a modified liquid epoxy resin could be discovered to optimize such a process.
- the instant invention is the discovery that epoxy resin compositions comprising a sufficient amount of partially hydrolyzed epoxy resin can be used to optimize a process for making fiber reinforced epoxy plastic structures. More specifically, the instant invention is a method for making fiber reinforced epoxy structure by a process comprising the steps of: forming a structure comprising reinforcing fibers and an epoxy resin composition comprising a liquid epoxy resin and an epoxy resin hardener; and heating the structure to cure the epoxy resin composition, wherein the improvement is the epoxy resin composition comprising more than one and one half percent of mono hydrolyzed epoxy resin and an epoxy resin hardener so that the viscosity of the epoxy resin composition during the heating step is in a range that results in a degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition that is greater than ninety volume percent of the void space.
- the epoxy resin composition comprises more than two percent of mono hydrolyzed epoxy resin.
- the epoxy resin composition comprises less than five percent of mono hydrolyzed epoxy resin.
- the stochiometric ratio of reactive groups of the epoxy resin composition to reactive groups of the epoxy resin hardener by equivalents is in the range of from about 1:0.9 to about 1 : 1.3.
- the liquid epoxy resin has an epoxide equivalent weight in the range of from 175 to 500 grams per mole and a viscosity at 25 0 C of from about 9,000 to about 20,000 cps.
- the instant invention is also related to a structure made by any of the processes of the instant invention.
- the structure is selected from the group consisting of a pipe, a vessel or tank, a boat hull, a propeller and a wind turbine blade.
- Fig. 1 is a cross-sectional view of a web of glass fibers impregnated with an epoxy resin composition which becomes so thin upon heating to cure the epoxy resin composition that it drips from the web of glass fibers;
- Fig. 2 is a cross-sectional view of a web of glass fibers partially impregnated with an epoxy resin composition which does not become thin enough upon heating to completely impregnate the web of glass fibers;
- Fig. 3 is a cross-sectional view of a web of glass fibers completely impregnated with an epoxy resin composition which has a viscosity when heat cured so that the cured epoxy resin composition completely fills the void space between the glass fibers.
- the instant invention is an improved method for making fiber reinforced epoxy structure by a process comprising the steps of: forming a structure comprising reinforcing fibers and an epoxy resin composition comprising a liquid epoxy resin and an epoxy resin hardener; and heating the structure to cure the epoxy resin composition, wherein the improvement is the epoxy resin composition comprising more than one and one half percent of mono hydrolyzed epoxy resin and an epoxy resin hardener so that the viscosity of the epoxy resin composition during the heating step is in a range that results in a degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition that is greater than ninety volume percent of the void space.
- the reinforcing fiber used in the instant invention is ordinarily glass or carbon fiber but any suitable reinforcing fiber (such as KEVLAR brand fiber from DuPont) can be used.
- the structure can be of any desired shape such as, and without limitation thereto, a pipe, a vessel or tank, a boat hull, a propeller and a wind turbine blade.
- the epoxy resin compositions of the instant invention can be cured by any suitable means such as by curing in or against a mold (such as by the "scrim process" where uncured resin passes through a screen to impregnate reinforcing fibers positioned on a form or mold) or by curing on a form or mandrel.
- Partially hydrolyzed epoxy resins terminate at one end thereof with an epoxy group and at the other end thereof with a hydrolyzed epoxy group, i.e., a glycol group.
- the percent mono hydrolyzed epoxy resin is determined and defined herein as the peak area percent of mono hydrolyzed epoxy resin in an epoxy resin sample by reverse phase liquid chromatography using UV detection at 254 nanometers.
- Partially hydrolyzed epoxy resins are ordinarily mixed with an epoxy hardening agent (and optionally other ingredients such as a hardening catalyst) to form an epoxy resin composition to be cured or hardened by heating. D.E.R.
- Fig. 1 therein is shown a cross-sectional view of a web of glass fibers 10 impregnated with an epoxy resin composition 11 which becomes so thin upon heating to cure the epoxy resin composition that it drips, as droplets 11a, from the web of glass fibers 10.
- FIG. 2 therein is shown a cross-sectional view of a web of glass fibers 12 partially impregnated with an epoxy resin composition 13 which does not become thin enough upon heating to completely impregnate the web of glass fibers 12 leaving some void spaces 13a between the fibers 12.
- FIG. 3 therein is shown a cross-sectional view of a web of glass fibers 14 completely impregnated with an epoxy resin composition 15 which has a viscosity when heat cured so that the cured epoxy resin composition 15 completely fills the void space between the glass fibers 14.
- Compositions 1, 2, 3 and 4 Four epoxy resin compositions (Compositions 1, 2, 3 and 4) are prepared.
- Composition #1 consists of 100 parts by weight (pbw) of Epikote 827 brand liquid epoxy resin (Hexion Specialty Chemicals, Columbus, OH) blended with 27.4 pbw of Anchamine DL 50 brand epoxy resin hardener (Air Products and Chemicals, Inc., Allentown, OH).
- Composition #2 consists of 100 pbw of D.E.R. 331 brand liquid epoxy resin (The Dow Chemical Company, Midland, MI) blended with 27.4 pbw of Anchamine DL 50 brand epoxy resin hardener.
- Composition #3 consists of 100 pbw of D.E.R.
- Composition #4 consists of 100 pbw of D.E.R. 383 brand liquid epoxy resin blended with 27.4 pbw of Anchamine DL 50 brand epoxy resin hardener.
- Epikote 827 brand liquid epoxy resin contains about 1.3% mono hydrolyzed epoxy resin.
- D.E.R. 331 brand liquid epoxy resin contains from 4.5 to 5% mono hydrolyzed epoxy rrsin.
- D.E.R. 383 brand liquid epoxy resin contains about 0.5% mono hydrolyzed epoxy resin.
- Composition #1 is used to make a glass fiber wound epoxy plastic pipe by winding continuous glass fibers onto a mandrel with the epoxy resin composition at a temperature of 7O 0 C followed by a linear temperature gradient of from 7O 0 C to 15O 0 C over a ten minute period of time.
- the viscosity of the epoxy resin composition initially falls from 0.2 Pa-seconds at the start of the heating gradient to a minimum of 0.01 Pa-seconds after eight minutes of the heating gradient, then to a viscosity of 0.02 Pa-seconds at the end of the heating gradient and finally to an infinite viscosity after five minutes additional heating at 15O 0 C.
- the time needed to react 98 mole percent of the epoxy groups of the epoxy composition with the hardening agent is greater than 120 minutes.
- the resulting glass fiber wound epoxy plastic pipe is tested for the degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition by weighing a known volume of a representative sample cut from the pipe.
- the degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition is greater than ninety volume percent of the void space.
- Composition #2 is used to make a glass fiber wound epoxy plastic pipe by winding continuous glass fibers onto a mandrel with the epoxy resin composition at a temperature of 7O 0 C followed by a linear temperature gradient of from 7O 0 C to 15O 0 C over a ten minute period of time.
- the viscosity of the epoxy resin composition initially falls from 0.2 Pa-seconds at the start of the heating gradient to a minimum of 0.02 Pa-seconds after six minutes of the heating gradient, then to a viscosity of 0.2 Pa-seconds at the end of the heating gradient and finally to an infinite viscosity after five minutes additional heating at 15O 0 C.
- the time needed to react 99 mole percent of the epoxy groups of the epoxy composition with the hardening agent is 43 minutes.
- the resulting glass fiber wound epoxy plastic pipe is tested for the degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition by weighing a known volume of a representative sample cut from the pipe. The degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition is greater than ninety volume percent of the void space.
- Composition #2 is also used to make a glass fiber wound epoxy plastic pipe by winding continuous glass fibers onto a mandrel with the epoxy resin composition at a temperature of 6O 0 C followed by a linear temperature gradient of from 6O 0 C to 17O 0 C over a ten minute period of time.
- the viscosity of the epoxy resin composition falls to a viscosity of 0.014 Pa-seconds at the end of the heating gradient and finally to an infinite viscosity after five minutes additional heating at 17O 0 C.
- the time needed to react 98 mole percent of the epoxy groups of the epoxy composition with the hardening agent is 33 minutes.
- the resulting glass fiber wound epoxy plastic pipe is tested for the degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition by weighing a known volume of a representative sample cut from the pipe.
- the degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition is greater than ninety volume percent of the void space.
- Composition #3 is used to make a glass fiber wound epoxy plastic pipe by winding continuous glass fibers onto a mandrel with the epoxy resin composition at a temperature of 7O 0 C followed by a linear temperature gradient of from 7O 0 C to 15O 0 C over a ten minute period of time.
- the viscosity of the epoxy resin composition initially falls from 0.2 Pa-seconds at the start of the heating gradient to a minimum of 0.01 Pa-seconds after eight minutes of the heating gradient, then to a viscosity of 0.02 Pa-seconds at the end of the heating gradient and finally to an infinite viscosity after five minutes additional heating at 15O 0 C.
- the time needed to react 98 mole percent of the epoxy groups of the epoxy composition with the hardening agent is greater than 120 minutes.
- the resulting glass fiber wound epoxy plastic pipe is tested for the degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition by weighing a known volume of a representative sample cut from the pipe.
- the degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition is greater than ninety volume percent of the void space.
- Composition #4 is used to make a glass fiber wound epoxy plastic pipe by winding continuous glass fibers onto a mandrel with the epoxy resin composition at a temperature of 7O 0 C followed by a linear temperature gradient of from 7O 0 C to 15O 0 C over a ten minute period of time.
- the viscosity of the epoxy resin composition initially falls from 0.2 Pa-seconds at the start of the heating gradient to a minimum of 0.007 Pa-seconds after eight minutes of the heating gradient, then to a viscosity of 0.01 Pa-seconds at the end of the heating gradient and finally to an infinite viscosity after five minutes additional heating at 15O 0 C.
- the time needed to react 98 mole percent of the epoxy groups of the epoxy composition with the hardening agent is greater than 120 minutes.
- the resulting glass fiber wound epoxy plastic pipe is tested for the degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition by weighing a known volume of a representative sample cut from the pipe.
- the degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition is less than ninety volume percent of the void space because the epoxy resin composition dripped from the void space between the glass fibers during the heat curing of the epoxy resin composition.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0907296A BRPI0907296A2 (en) | 2008-04-14 | 2009-01-30 | process for making a fiber reinforced epoxy structure and reinforced epoxy structure |
CN2009801129163A CN101999054A (en) | 2008-04-14 | 2009-01-30 | Process for making fiber reinforced plastic pipe |
US12/935,397 US20110033646A1 (en) | 2008-04-14 | 2009-01-30 | Process for making fiber reinforced plastic pipe |
EP09732738A EP2276958A1 (en) | 2008-04-14 | 2009-01-30 | Process for making fiber reinforced plastic pipe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4457908P | 2008-04-14 | 2008-04-14 | |
US61/044,579 | 2008-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009128971A1 true WO2009128971A1 (en) | 2009-10-22 |
Family
ID=40524707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/032594 WO2009128971A1 (en) | 2008-04-14 | 2009-01-30 | Process for making fiber reinforced plastic pipe |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110033646A1 (en) |
EP (1) | EP2276958A1 (en) |
CN (1) | CN101999054A (en) |
BR (1) | BRPI0907296A2 (en) |
WO (1) | WO2009128971A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013087175A1 (en) * | 2011-12-14 | 2013-06-20 | Rehau Ag + Co | Method for producing a fibre-reinforced composite tube and fibre-reinforced composite tube |
US11486544B2 (en) | 2019-10-25 | 2022-11-01 | Toyota Jidosha Kabushiki Kaisha | High-pressure tank, vehicle including high-pressure tank, and method for manufacturing high-pressure tank |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102012789B1 (en) * | 2016-03-28 | 2019-08-21 | 주식회사 엘지화학 | Semiconductor device |
EP3599320B1 (en) * | 2018-07-27 | 2023-08-30 | Solidian GmbH | Reinforcing bar and method for its production |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1117718A (en) * | 1967-04-20 | 1968-06-19 | Warwick Grenville Michael Ship | Glass fibre-reinforced epoxy resin bodies |
US3429760A (en) | 1965-02-23 | 1969-02-25 | Smith Corp A O | Method of making glass reinforced resin articles |
US3933180A (en) | 1966-09-02 | 1976-01-20 | Ciba-Geigy Corporation | Methods and apparatus for making fiber reinforced plastic pipe |
US3956051A (en) | 1966-09-02 | 1976-05-11 | Ciba-Geigy Corporation | Apparatus for making fiber reinforced plastic pipe |
US4139025A (en) | 1976-07-02 | 1979-02-13 | Hobas Engineering Ag | Glass fiber reinforced pipe |
GB2033828A (en) * | 1978-10-27 | 1980-05-29 | Universal Optical | Rotationally moulded articles of epoxy resin |
US4208230A (en) * | 1977-07-25 | 1980-06-17 | Ameron, Inc. | Impregnating a fibrous web with liquid |
US4217158A (en) | 1977-10-03 | 1980-08-12 | Ciba-Geigy Corporation | Method of forming prestressed filament wound pipe |
US4361459A (en) | 1981-04-22 | 1982-11-30 | Bristol Composite Materials Engineering Limited | Resin impregnator for filament wound pipe |
EP0347936A2 (en) | 1988-06-24 | 1989-12-27 | Showa Denko Kabushiki Kaisha | Continuous production of laminated sheet |
EP0375992A1 (en) * | 1988-12-27 | 1990-07-04 | Witco GmbH | Process for preparing pipes from composite materials based on epoxy resins and bis[1(2'aminoethyl)-1,3-diaza-cyclopenten-2-yl-2]-heptane-1,7 |
EP0534092A1 (en) * | 1991-07-31 | 1993-03-31 | Hercules Incorporated | Cure-on-the-fly system |
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WO2007033499A1 (en) * | 2005-09-20 | 2007-03-29 | Abb Research Ltd | Mold-free resin-insulated coil windings |
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2009
- 2009-01-30 US US12/935,397 patent/US20110033646A1/en not_active Abandoned
- 2009-01-30 WO PCT/US2009/032594 patent/WO2009128971A1/en active Application Filing
- 2009-01-30 BR BRPI0907296A patent/BRPI0907296A2/en not_active IP Right Cessation
- 2009-01-30 CN CN2009801129163A patent/CN101999054A/en active Pending
- 2009-01-30 EP EP09732738A patent/EP2276958A1/en not_active Withdrawn
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013087175A1 (en) * | 2011-12-14 | 2013-06-20 | Rehau Ag + Co | Method for producing a fibre-reinforced composite tube and fibre-reinforced composite tube |
CN103987515A (en) * | 2011-12-14 | 2014-08-13 | 雷奥两合股份公司 | Method for producing fibre-reinforced composite tube and the fibre-reinforced composite tube |
CN103987515B (en) * | 2011-12-14 | 2017-04-12 | 雷奥两合股份公司 | Method for producing fibre-reinforced composite tube and the fibre-reinforced composite tube |
US11486544B2 (en) | 2019-10-25 | 2022-11-01 | Toyota Jidosha Kabushiki Kaisha | High-pressure tank, vehicle including high-pressure tank, and method for manufacturing high-pressure tank |
Also Published As
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CN101999054A (en) | 2011-03-30 |
EP2276958A1 (en) | 2011-01-26 |
BRPI0907296A2 (en) | 2019-08-27 |
US20110033646A1 (en) | 2011-02-10 |
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