DK520789A - System til fremstilling af pultruderede profiler - Google Patents
System til fremstilling af pultruderede profilerInfo
- Publication number
- DK520789A DK520789A DK520789A DK520789A DK520789A DK 520789 A DK520789 A DK 520789A DK 520789 A DK520789 A DK 520789A DK 520789 A DK520789 A DK 520789A DK 520789 A DK520789 A DK 520789A
- Authority
- DK
- Denmark
- Prior art keywords
- filler
- channel
- expandable
- resin
- substance
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000011347 resin Substances 0.000 abstract 4
- 229920005989 resin Polymers 0.000 abstract 4
- 239000000945 filler Substances 0.000 abstract 3
- 239000000126 substance Substances 0.000 abstract 2
- 239000000835 fiber Substances 0.000 abstract 1
- 239000011152 fibreglass Substances 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
Classifications
-
- 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
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
-
- 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
- B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
- B29C70/021—Combinations of fibrous reinforcement and non-fibrous material
- B29C70/025—Combinations of fibrous reinforcement and non-fibrous material with particular filler
-
- 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
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
-
- 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
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/06—Unsaturated polyesters
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0809—Fabrics
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/001—Profiled members, e.g. beams, sections
- B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Moulding By Coating Moulds (AREA)
- Ropes Or Cables (AREA)
- Metal Rolling (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Casting Devices For Molds (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Radar Systems Or Details Thereof (AREA)
- Revetment (AREA)
- Metal Extraction Processes (AREA)
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8709455 | 1987-04-22 | ||
GB08709455A GB2203982A (en) | 1987-04-22 | 1987-04-22 | A granular filled and woven fibre or mat sheathed pultrusion |
PCT/GB1988/000305 WO1988008367A1 (en) | 1987-04-22 | 1988-04-21 | In-line core-filled pultruded profiles |
GB8800305 | 1988-04-21 |
Publications (4)
Publication Number | Publication Date |
---|---|
DK520789A true DK520789A (da) | 1989-10-20 |
DK520789D0 DK520789D0 (da) | 1989-10-20 |
DK163219B DK163219B (da) | 1992-02-10 |
DK163219C DK163219C (da) | 1992-07-06 |
Family
ID=10616123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK520789A DK163219C (da) | 1987-04-22 | 1989-10-20 | Anlaeg til brug ved fremstilling af pultruderede profiler |
Country Status (16)
Country | Link |
---|---|
US (1) | US5120380A (da) |
EP (1) | EP0356449B1 (da) |
JP (1) | JP2555437B2 (da) |
KR (1) | KR920009945B1 (da) |
CN (1) | CN1026568C (da) |
AT (1) | ATE77584T1 (da) |
AU (1) | AU608322B2 (da) |
CA (1) | CA1325504C (da) |
DE (1) | DE3872390T2 (da) |
DK (1) | DK163219C (da) |
FI (1) | FI97870C (da) |
GB (1) | GB2203982A (da) |
NO (1) | NO177130C (da) |
RU (1) | RU2067538C1 (da) |
WO (1) | WO1988008367A1 (da) |
ZA (1) | ZA882829B (da) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3929146A1 (de) * | 1989-09-02 | 1991-03-07 | Martin Rudolph | Verfahren und vorrichtung zur herstellung faserverstaerkter formteile |
GB9008655D0 (en) * | 1990-04-18 | 1990-06-13 | Caledonia Composites | Vertical pultruder |
CA2089507C (en) * | 1990-08-16 | 1996-11-26 | Lawrence W. Davies | Pultrusion method including transverse fibers |
DK211090D0 (da) * | 1990-09-03 | 1990-09-03 | Oeyvind Ellegaard | Fremgangsmaade og anlaeg til fremstilling af bloklegemer ud fra loest materiale, f.eks. sphagnum |
GB9117964D0 (en) * | 1991-08-20 | 1991-10-09 | Caledonia Composites | Pultrude profile surface finishing method |
US5286320A (en) * | 1991-11-18 | 1994-02-15 | Owens-Corning Fiberglas Technology Inc. | Method for making a pultruded panel |
US5492583A (en) * | 1992-11-16 | 1996-02-20 | Geotek, Inc. | Apparatus and method for in-line coating of pultrusion profiles |
US5393536A (en) * | 1993-04-05 | 1995-02-28 | Crane Plastics Company | Coextrusion apparatus |
US5763042A (en) * | 1994-06-28 | 1998-06-09 | Reichhold Chemicals, Inc. | Reinforcing structural rebar and method of making the same |
US5609806A (en) * | 1994-06-28 | 1997-03-11 | Reichhold Chemicals, Inc. | Method of making prepreg |
JPH10506584A (ja) * | 1994-06-28 | 1998-06-30 | マーシャル・インダストリーズ・コンポジッツ | 建築構造強化棒材の成形装置 |
WO1996018494A1 (en) * | 1994-12-13 | 1996-06-20 | Dow-United Technologies Composite Products, Inc. | Shaped unidirectional fiber filler |
US5747075A (en) * | 1995-06-07 | 1998-05-05 | Owens-Corning Fiberglas Technology Inc. | Apparatus for resin ipregnated pultrusion |
US5585155A (en) * | 1995-06-07 | 1996-12-17 | Andersen Corporation | Fiber reinforced thermoplastic structural member |
DE19523490C2 (de) * | 1995-06-28 | 1997-04-10 | Werner & Pfleiderer | Vorrichtung und Verfahren zur Imprägnierung von Fasersträngen mit Kunststoffmaterial |
US5876641A (en) * | 1995-07-31 | 1999-03-02 | Andersen Corporation | In-line process for injection of foam material into a composite profile |
BR9712494A (pt) | 1996-10-07 | 1999-10-19 | Marshall Ind Composites | Produto compósito reforçado e aparelho e método para sua produção |
US5866051A (en) * | 1997-04-23 | 1999-02-02 | Industrial Technology Research Institute | Method of making continuous glass fiber-reinforced thermoplastic foam sandwich composites |
DE19925918B4 (de) * | 1999-02-06 | 2005-06-09 | Fagerdala Benelux S.A. | Verfahren zur Armierung von Kunststoffsträngen |
US6280001B1 (en) | 1999-03-05 | 2001-08-28 | Cascade Engineering, Inc. | Waste container and wheel assembly with pultruded axle |
US6395210B1 (en) | 1999-05-12 | 2002-05-28 | A&P Technology, Inc. | Pultrusion method and device for forming composites using pre-consolidated braids |
AU2088401A (en) * | 1999-12-29 | 2001-07-16 | Owens Corning | Process and apparatus for producing reinforced composite systems |
WO2007009214A1 (en) * | 2005-07-15 | 2007-01-25 | Mastercore System Ltd. | Multistage method and apparatus for continuously forming a composite article |
US8597016B2 (en) | 2005-11-23 | 2013-12-03 | Milgard Manufacturing Incorporated | System for producing pultruded components |
US8101107B2 (en) | 2005-11-23 | 2012-01-24 | Milgard Manufacturing Incorporated | Method for producing pultruded components |
US7901762B2 (en) | 2005-11-23 | 2011-03-08 | Milgard Manufacturing Incorporated | Pultruded component |
US7875675B2 (en) | 2005-11-23 | 2011-01-25 | Milgard Manufacturing Incorporated | Resin for composite structures |
US7597771B2 (en) * | 2006-02-07 | 2009-10-06 | Comfort Line Ltd. | Pultrusion method and related article |
CN101528955B (zh) * | 2006-10-23 | 2011-03-09 | 三菱麻铁里亚尔株式会社 | 多孔体制造装置及多孔体的制造方法 |
DE102008013467A1 (de) * | 2007-03-23 | 2008-11-13 | Thomas Gmbh + Co. Technik + Innovation Kg | Verfahren und Vorrichtung zur Herstellung eines Kunststoffprofils |
CN102947079A (zh) | 2010-06-11 | 2013-02-27 | 提克纳有限责任公司 | 由实心线性型材形成的结构件 |
RU2013102598A (ru) | 2010-06-22 | 2014-07-27 | ТИКОНА ЭлЭлСи | Армированные полые профили |
MX349378B (es) | 2010-06-22 | 2017-07-25 | Ticona Llc | Metodo para formar perfiles de extruido o estirado reforzados. |
CA2801081A1 (en) | 2010-06-22 | 2011-12-29 | Ticona Llc | Thermoplastic prepreg containing continuous and long fibers |
US9017501B2 (en) | 2011-02-17 | 2015-04-28 | Baker Hughes Incorporated | Polymeric component and method of making |
US8684075B2 (en) | 2011-02-17 | 2014-04-01 | Baker Hughes Incorporated | Sand screen, expandable screen and method of making |
US8664318B2 (en) | 2011-02-17 | 2014-03-04 | Baker Hughes Incorporated | Conformable screen, shape memory structure and method of making the same |
US9044914B2 (en) | 2011-06-28 | 2015-06-02 | Baker Hughes Incorporated | Permeable material compacting method and apparatus |
US8720590B2 (en) * | 2011-08-05 | 2014-05-13 | Baker Hughes Incorporated | Permeable material compacting method and apparatus |
US8721958B2 (en) | 2011-08-05 | 2014-05-13 | Baker Hughes Incorporated | Permeable material compacting method and apparatus |
CN103827622B (zh) * | 2011-08-22 | 2016-11-16 | 瑞莱昂保护系统有限公司 | 防弹多层结构 |
EP3047061B8 (en) * | 2013-09-19 | 2021-04-14 | Raytheon Technologies Corporation | Filament winding apparatus and method for ceramic matrix composites |
US9415577B1 (en) | 2013-10-03 | 2016-08-16 | The Boeing Company | Automated fabrication of composite fillers |
US9855702B1 (en) | 2013-10-03 | 2018-01-02 | The Boeing Company | Method and apparatus for making composite fillers |
DE102015214909A1 (de) * | 2015-08-05 | 2017-02-09 | Bayerische Motoren Werke Aktiengesellschaft | Flechtpultrusionsvorrichtung zur Herstellung eines faserverstärkten Kunststoffhohlprofils |
US10232551B2 (en) * | 2016-04-15 | 2019-03-19 | Cc3D Llc | Head and system for continuously manufacturing composite hollow structure |
DE102017009839A1 (de) * | 2017-07-12 | 2019-01-17 | Oke Kunststofftechnik Gmbh & Co. Kg | Verfahren zur Herstellung eines Verbundprofils und Verbundprofil |
CN108058369B (zh) * | 2017-12-21 | 2019-09-17 | 重庆馨康阁科技有限公司 | 救护车贴膜方法 |
CN111605230B (zh) * | 2020-06-03 | 2022-06-28 | 全球能源互联网研究院有限公司 | 绝缘杆及其制造方法和制造装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1016009B (de) * | 1954-07-15 | 1957-09-19 | Anton Reifenhaeuser Fa | Verfahren zum Strangpressen von Hohlkoerpern aus thermoplastischem Kunststoff |
US3406231A (en) * | 1964-01-20 | 1968-10-15 | Owens Corning Fiberglass Corp | Method for production of tubular fibrous bodies |
US3726755A (en) * | 1966-09-29 | 1973-04-10 | Owens Corning Fiberglass Corp | High-strength foam material |
GB1206946A (en) * | 1966-10-11 | 1970-09-30 | English Electric Co Ltd | Improvements in or relating to the continuous production of a fibre-reinforced plastics material |
US3914080A (en) * | 1970-07-02 | 1975-10-21 | Union Carbide Corp | Apparatus for the high speed production of non-woven fabrics |
GB1338536A (en) * | 1972-05-30 | 1973-11-28 | Shell Int Research | Method of producing an article of thermosetting resin |
ES416007A1 (es) * | 1972-08-01 | 1976-02-16 | Siempelkamp Gmbh & Co | Instalacion para la fabricacion de placas de virutas, pla- cas de fibras y productos similares. |
GB1373782A (en) * | 1972-10-05 | 1974-11-13 | English Electric Co Ltd | Manufacture of reinforced plastics |
US4115498A (en) * | 1976-02-27 | 1978-09-19 | Owens-Corning Fiberglas Corporation | Method and apparatus for molding articles from fibrous material |
GB1584774A (en) * | 1976-08-02 | 1981-02-18 | Wiggins Teape Ltd | Fibrous material moulding apparatus |
JPS5738137A (en) * | 1980-08-21 | 1982-03-02 | Mitsubishi Petrochemical Co | Manufacture of composite member |
JPS6021853B2 (ja) * | 1981-08-03 | 1985-05-29 | 日東電工株式会社 | 連続成形方法 |
GB2143768B (en) * | 1983-07-05 | 1987-04-15 | Michael John Hewitt | The manufacture of structural profile |
JPS6021853A (ja) * | 1983-07-18 | 1985-02-04 | 日本特殊陶業株式会社 | リン酸ジルコニウム低膨張磁器 |
DE3413601A1 (de) * | 1984-04-11 | 1985-10-24 | Grillo-Werke AG, 4223 Voerde | Verfahren und vorrichtung zur herstellung von verbundprofilen |
EP0179838B1 (en) * | 1984-05-09 | 1989-12-27 | HEWITT, Michael John | Method of manufacturing lightweight structural profile |
JPS61144611A (ja) * | 1984-12-19 | 1986-07-02 | Ube Nitto Kasei Kk | 強化光フアイバ及びその製造方法 |
GB8630552D0 (en) * | 1986-12-22 | 1987-02-04 | Raychem Ltd | Consolidating tubular composites |
-
1987
- 1987-04-22 GB GB08709455A patent/GB2203982A/en not_active Withdrawn
-
1988
- 1988-04-21 KR KR1019880701707A patent/KR920009945B1/ko not_active IP Right Cessation
- 1988-04-21 AU AU16249/88A patent/AU608322B2/en not_active Ceased
- 1988-04-21 AT AT88903318T patent/ATE77584T1/de not_active IP Right Cessation
- 1988-04-21 EP EP88903318A patent/EP0356449B1/en not_active Expired - Lifetime
- 1988-04-21 RU SU4742432/26A patent/RU2067538C1/ru not_active IP Right Cessation
- 1988-04-21 ZA ZA882829A patent/ZA882829B/xx unknown
- 1988-04-21 WO PCT/GB1988/000305 patent/WO1988008367A1/en active IP Right Grant
- 1988-04-21 US US07/424,229 patent/US5120380A/en not_active Expired - Fee Related
- 1988-04-21 DE DE8888903318T patent/DE3872390T2/de not_active Expired - Fee Related
- 1988-04-21 JP JP63503506A patent/JP2555437B2/ja not_active Expired - Fee Related
- 1988-04-22 CN CN88103211A patent/CN1026568C/zh not_active Expired - Fee Related
- 1988-04-22 CA CA000564946A patent/CA1325504C/en not_active Expired - Fee Related
- 1988-12-21 NO NO885695A patent/NO177130C/no not_active IP Right Cessation
-
1989
- 1989-10-20 DK DK520789A patent/DK163219C/da not_active IP Right Cessation
- 1989-10-20 FI FI895003A patent/FI97870C/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK163219C (da) | 1992-07-06 |
FI895003A0 (fi) | 1989-10-20 |
FI97870C (fi) | 1997-03-10 |
GB8709455D0 (en) | 1987-05-28 |
WO1988008367A1 (en) | 1988-11-03 |
NO177130C (no) | 1995-08-09 |
GB2203982A (en) | 1988-11-02 |
JP2555437B2 (ja) | 1996-11-20 |
DE3872390D1 (de) | 1992-07-30 |
NO885695D0 (no) | 1988-12-21 |
JPH02503772A (ja) | 1990-11-08 |
NO885695L (no) | 1988-12-21 |
DK520789D0 (da) | 1989-10-20 |
US5120380A (en) | 1992-06-09 |
DK163219B (da) | 1992-02-10 |
EP0356449B1 (en) | 1992-06-24 |
KR920009945B1 (ko) | 1992-11-06 |
EP0356449A1 (en) | 1990-03-07 |
CA1325504C (en) | 1993-12-28 |
FI97870B (fi) | 1996-11-29 |
KR890700463A (ko) | 1989-04-25 |
ZA882829B (en) | 1989-01-25 |
DE3872390T2 (de) | 1993-04-08 |
CN1030204A (zh) | 1989-01-11 |
RU2067538C1 (ru) | 1996-10-10 |
AU608322B2 (en) | 1991-03-28 |
ATE77584T1 (de) | 1992-07-15 |
AU1624988A (en) | 1988-12-02 |
NO177130B (no) | 1995-04-18 |
CN1026568C (zh) | 1994-11-16 |
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