ES2188775T3 - Metodo de control para la fabricacion de tubos de plastico orientado. - Google Patents
Metodo de control para la fabricacion de tubos de plastico orientado.Info
- Publication number
- ES2188775T3 ES2188775T3 ES96926968T ES96926968T ES2188775T3 ES 2188775 T3 ES2188775 T3 ES 2188775T3 ES 96926968 T ES96926968 T ES 96926968T ES 96926968 T ES96926968 T ES 96926968T ES 2188775 T3 ES2188775 T3 ES 2188775T3
- Authority
- ES
- Spain
- Prior art keywords
- tube
- expansion
- manufacture
- current
- control method
- 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.)
- Expired - Lifetime
Links
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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
- B29C55/24—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes radial
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
- B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
- B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92123—Diameter or circumference
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92152—Thickness
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92428—Calibration, after-treatment, or cooling zone
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92438—Conveying, transporting or storage of articles
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92619—Diameter or circumference
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92647—Thickness
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Control Of Eletrric Generators (AREA)
- Cereal-Derived Products (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
SE PRESENTA UN METODO PARA EXPANDIR UN TUBO DE MATERIAL DE PLASTICO, CARACTERIZADO POR QUE UN TUBO QUE SE MUEVE LONGITUDINALMENTE (10) ES PROGRESIVA Y DIAMETRALMENTE EXPANDIDO MEDIANTE LA PRESION DE UN FLUIDO INTERNO EN UNA ZONA DE EXPANSION (20) ENTRE UN OBTURADOR CORRIENTE ARRIBA (24) Y UN OBTURADOR EXPANDIBLE CORRIENTE ABAJO (26). LA EXPANSION DEL TUBO ES CONTROLADA EN RESPUESTA A PARAMETROS QUE INDICAN DIRECTA O INDIRECTAMENTE LA VARIACION EN LA VELOCIDAD RELATIVA A LA CUAL ES SUMINISTRADO EL MATERIAL DE LA ZONA DE EXPANSION, TALES COMO LA DETECCION DE LA VELOCIDAD DEL TUBO CORRIENTE ARRIBA (38), EL DIAMETRO INICIAL DE EXPANSION (36), LA FUERZA AXIAL (39) SOBRE UN DISPOSITIVO DE CONFORMACION (28) O EL DIAMETRO DEL TUBO (41) JUSTO ANTES DE LA ZONA DE EXPANSION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPN4850A AUPN485095A0 (en) | 1995-08-18 | 1995-08-18 | Process control |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2188775T3 true ES2188775T3 (es) | 2003-07-01 |
Family
ID=3789181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96926968T Expired - Lifetime ES2188775T3 (es) | 1995-08-18 | 1996-08-16 | Metodo de control para la fabricacion de tubos de plastico orientado. |
Country Status (14)
Country | Link |
---|---|
US (1) | US6153132A (es) |
EP (1) | EP0844927B1 (es) |
CN (1) | CN1064587C (es) |
AT (1) | ATE230338T1 (es) |
AU (2) | AUPN485095A0 (es) |
BR (1) | BR9610010A (es) |
CA (1) | CA2229752C (es) |
DE (1) | DE69625599T2 (es) |
ES (1) | ES2188775T3 (es) |
MY (1) | MY121605A (es) |
NO (1) | NO310710B1 (es) |
NZ (1) | NZ315293A (es) |
RU (1) | RU2160183C2 (es) |
WO (1) | WO1997006940A1 (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2806957B1 (fr) * | 2000-03-29 | 2003-01-10 | Alphacan Sa | Procede et ligne pour fabriquer en continu des tubes en matiere plastique avec etirage bi-axial, et tube en matiere plastique obtenu |
FR2806956B1 (fr) | 2000-03-29 | 2003-05-09 | Alphacan Sa | Procede et ligne de fabrication en continu de tubes en matiere plastique avec etirage bi-axial, et tube en matiere plastique obtenu |
US7018195B2 (en) * | 2002-12-04 | 2006-03-28 | Richard Lee Stone | Device and method for flaring tubing |
AU2003901596A0 (en) * | 2003-04-08 | 2003-05-01 | Uponor Innovation Ab | Method and apparatus for control of plastics tube orientation process |
WO2009049374A1 (en) * | 2007-10-17 | 2009-04-23 | Vinidex Pty Limited | A process for producing oriented plastic tube |
DE102008026682B3 (de) | 2008-06-04 | 2009-11-19 | Battenfeld Extrusionstechnik Gmbh | Verfahren und Vorrichtung zur Herstellung von Kunststoffprofilen |
AU2015203535A1 (en) * | 2009-10-19 | 2015-07-16 | Hoppmann International B.V. | Methods and devices for manufacturing biaxially oriented tubing |
NL2003666C2 (en) | 2009-10-19 | 2011-04-20 | Rollepaal Holding B V | Methods and devices for manufacturing biaxially oriented tubing. |
CN102211406B (zh) * | 2011-05-30 | 2013-08-14 | 长园集团股份有限公司 | 一种热缩管正压扩张机 |
US9234729B2 (en) | 2014-06-05 | 2016-01-12 | Pneu-Dart, Inc. | Injection dart |
FR3042573B1 (fr) * | 2015-10-19 | 2018-03-30 | Sotra Seperef | Dispositif d’obturation pour regler la pression ou le debit d’ecoulement dans un tube, et procede de fabrication d’un tube |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1166458B (de) * | 1959-09-18 | 1964-03-26 | Krauss Maffei Ag | Schneckenpresse mit einer Ringduese |
BE680937A (es) * | 1964-09-21 | 1966-11-14 | ||
GB1119552A (en) * | 1965-06-15 | 1968-07-10 | Gen Eng Radcliffe | Improvements in or relating to the manufacture of plastic tubular film |
US3635633A (en) * | 1969-11-26 | 1972-01-18 | Polymer Processing Res Inst | Apparatus for biaxially stretching a tubular film |
US4154563A (en) * | 1972-02-18 | 1979-05-15 | Arco Polymers, Inc. | Apparatus for making structural profiles |
DE2721609C2 (de) * | 1977-05-13 | 1986-07-10 | Reifenhäuser KG, 5210 Troisdorf | Regeleinrichtung für eine Anlage zur Herstellung von Kunststoffblasfolien |
US4140460A (en) * | 1977-09-01 | 1979-02-20 | Egan Machinery Company | Control of blown film tube diameter |
US4699580A (en) * | 1985-12-12 | 1987-10-13 | Co Yee Tiat O | Blown film tube diameter control apparatus |
JPH0753415B2 (ja) * | 1987-05-30 | 1995-06-07 | 出光石油化学株式会社 | ブテン−1重合体インフレ−ションフィルムの製造方法 |
WO1990002644A1 (en) * | 1988-09-15 | 1990-03-22 | Vinidex Tubemakers Pty. Limited | Method of pipe manufacture |
DE4003696C1 (es) * | 1990-02-07 | 1990-12-13 | Petzetakis, George Aristovoulos, Piraeus, Gr | |
DE4118122A1 (de) * | 1991-06-03 | 1992-12-10 | Windmoeller & Hoelscher | Verfahren zur bestimmung und/oder regelung des orientierungsgrades von in blasfolienanlagen hergestellten schlauchfolien |
US5310329A (en) * | 1992-02-05 | 1994-05-10 | Cree Robert E | Air shroud device for a blown film extrusion line |
GB9206766D0 (en) * | 1992-03-27 | 1992-05-13 | Bp Chem Int Ltd | Pipes and their manufacture |
AUPM307693A0 (en) * | 1993-12-21 | 1994-01-20 | Uponor N.V. | Expandable plug |
NL9400451A (nl) * | 1994-03-22 | 1995-11-01 | Wavin Bv | Werkwijze en inrichting voor het vervaardigen van biaxiaal georiënteerde buis uit thermoplastisch kunststofmateriaal. |
NL9400452A (nl) * | 1994-03-22 | 1995-11-01 | Wavin Bv | Werkwijze en inrichting voor het vervaardigen van biaxiaal georiënteerde buis uit thermoplastisch kunststofmateriaal. |
NL9400453A (nl) * | 1994-03-22 | 1995-11-01 | Wavin Bv | Werkwijze en inrichting voor het vervaardigen van biaxiaal georiënteerde buis uit thermoplastisch kunststofmateriaal. |
US5733487A (en) * | 1996-05-31 | 1998-03-31 | Raychem Corporation | Method of expanding polymeric tubing |
-
1995
- 1995-08-18 AU AUPN4850A patent/AUPN485095A0/en not_active Abandoned
-
1996
- 1996-07-16 BR BR9610010-9A patent/BR9610010A/pt not_active IP Right Cessation
- 1996-07-16 AU AU66962/96A patent/AU699095B2/en not_active Ceased
- 1996-08-16 RU RU98104416/12A patent/RU2160183C2/ru not_active IP Right Cessation
- 1996-08-16 CA CA002229752A patent/CA2229752C/en not_active Expired - Fee Related
- 1996-08-16 WO PCT/AU1996/000514 patent/WO1997006940A1/en active IP Right Grant
- 1996-08-16 CN CN96197479A patent/CN1064587C/zh not_active Expired - Fee Related
- 1996-08-16 US US09/029,048 patent/US6153132A/en not_active Expired - Lifetime
- 1996-08-16 DE DE69625599T patent/DE69625599T2/de not_active Expired - Lifetime
- 1996-08-16 ES ES96926968T patent/ES2188775T3/es not_active Expired - Lifetime
- 1996-08-16 EP EP96926968A patent/EP0844927B1/en not_active Expired - Lifetime
- 1996-08-16 NZ NZ315293A patent/NZ315293A/xx not_active IP Right Cessation
- 1996-08-16 AT AT96926968T patent/ATE230338T1/de active
- 1996-08-16 MY MYPI96003385A patent/MY121605A/en unknown
-
1998
- 1998-02-18 NO NO19980678A patent/NO310710B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
MY121605A (en) | 2006-02-28 |
US6153132A (en) | 2000-11-28 |
AUPN485095A0 (en) | 1995-09-07 |
RU2160183C2 (ru) | 2000-12-10 |
EP0844927B1 (en) | 2003-01-02 |
DE69625599D1 (de) | 2003-02-06 |
NO980678D0 (no) | 1998-02-18 |
CA2229752A1 (en) | 1997-02-27 |
AU6696296A (en) | 1997-03-12 |
WO1997006940A1 (en) | 1997-02-27 |
EP0844927A4 (en) | 2001-04-04 |
CN1199363A (zh) | 1998-11-18 |
EP0844927A1 (en) | 1998-06-03 |
BR9610010A (pt) | 1999-12-21 |
CA2229752C (en) | 2006-05-16 |
AU699095B2 (en) | 1998-11-19 |
DE69625599T2 (de) | 2003-11-13 |
NZ315293A (en) | 1998-10-28 |
NO310710B1 (no) | 2001-08-20 |
ATE230338T1 (de) | 2003-01-15 |
NO980678L (no) | 1998-02-18 |
CN1064587C (zh) | 2001-04-18 |
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