DE68912642D1 - Extruder mit Vorrichtung zum Einstellen des Knetgrades. - Google Patents
Extruder mit Vorrichtung zum Einstellen des Knetgrades.Info
- Publication number
- DE68912642D1 DE68912642D1 DE89304628T DE68912642T DE68912642D1 DE 68912642 D1 DE68912642 D1 DE 68912642D1 DE 89304628 T DE89304628 T DE 89304628T DE 68912642 T DE68912642 T DE 68912642T DE 68912642 D1 DE68912642 D1 DE 68912642D1
- Authority
- DE
- Germany
- Prior art keywords
- kneading
- extruder
- adjusting
- degree
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
- B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
- B29B7/483—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—Screws
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
-
- 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
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/801—Valves
-
- 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
- B29C2948/9258—Velocity
- B29C2948/926—Flow or feed rate
-
- 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
- B29C2948/92714—Degree of crosslinking, solidification, crystallinity or homogeneity
-
- 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
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- 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
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
-
- 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
- B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11812288 | 1988-05-17 | ||
JP63193450A JPH0248920A (ja) | 1988-05-17 | 1988-08-04 | 2軸同方向回転押出機の混練度調整装置 |
JP63243925A JPH0292516A (ja) | 1988-09-30 | 1988-09-30 | 単軸押出機の混練度調整装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68912642D1 true DE68912642D1 (de) | 1994-03-10 |
DE68912642T2 DE68912642T2 (de) | 1994-06-23 |
Family
ID=27313507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68912642T Expired - Fee Related DE68912642T2 (de) | 1988-05-17 | 1989-05-08 | Extruder mit Vorrichtung zum Einstellen des Knetgrades. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5145251A (de) |
EP (1) | EP0342839B1 (de) |
BR (1) | BR8902270A (de) |
CA (1) | CA1306838C (de) |
DE (1) | DE68912642T2 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1246782B (it) * | 1991-04-15 | 1994-11-26 | Pomini Farrel Spa | Macchina per l'estrusione di polimeri termoplastici e simili comprendente un mescolatore interno. |
US5358681A (en) * | 1993-04-28 | 1994-10-25 | Rohm And Haas Company | Backseal extruder |
US5573332A (en) * | 1993-09-02 | 1996-11-12 | Werner & Pfleiderer Gmbh | Screw element for a screw-like extrusion machine |
IT1283652B1 (it) * | 1996-08-02 | 1998-04-23 | Pomini Spa | Procedimento per la mescolazione ed estrusione in continuo di materiali polimerici con pre-mescolazione a secco del materiale e |
SI1075377T1 (en) * | 1998-05-07 | 2003-12-31 | Ato Bv | Process and apparatus for continuously manufacturing composites of polymer and cellulosic fibres |
JP2003523849A (ja) * | 2000-02-24 | 2003-08-12 | ベルシュトルフ ゲゼルシャフト ミット ベシュレンクテル ハフツング | ブリスタを有する押出機 |
DE10012532A1 (de) * | 2000-03-15 | 2001-09-27 | Remaplan Anlagenbau Gmbh | Verfahren zum Spritzpressen von Kunststoffmischungen, insbesondere Kunststoffmischungen aufweisend mindestens eine thermoplastische Plyesterkomponente und mindestens eine Modifierkomponente, insbesondere deren Recyclate sowie Vorrichtung zum Durchführen des Verfahrens |
EP1283040A4 (de) * | 2000-03-21 | 2008-05-14 | Nippon Shinyaku Co Ltd | Orale heilmittelform für dauerverabreichung |
US20030025236A1 (en) * | 2001-08-01 | 2003-02-06 | Xerox Corporation | Toner extruder feed apparatus |
DE10339352A1 (de) * | 2003-08-25 | 2005-03-24 | Bühler AG | SME-Steuerung für die Verarbeitung stärkehaltiger Produkte |
DE102005010315A1 (de) * | 2005-03-03 | 2006-09-07 | Bühler AG | Verfahren und Anlage zur Herstellung stärke-, fett- oder proteinbasierter Nahrungs- oder Futtermittel mit definiertem Schüttgewicht |
JP3854298B1 (ja) * | 2005-07-11 | 2006-12-06 | 株式会社神戸製鋼所 | 噛合型2軸押出機の混練度調整装置 |
JP4768018B2 (ja) * | 2005-07-12 | 2011-09-07 | ボレアリス テクノロジー オイ | 逆回転2軸押出機 |
US20070183254A1 (en) * | 2005-10-25 | 2007-08-09 | Desider Schobert-Csongor | Infinitely variable shear mixer apparatus |
US20070237022A1 (en) * | 2006-04-11 | 2007-10-11 | Wiltz Philip B | Extruder mid-barrel adjustable valve assembly |
US20070237850A1 (en) * | 2006-04-11 | 2007-10-11 | Wenger Manufacturing, Inc. | Extruder mid-barrel adjustable valve assembly |
US20080267003A1 (en) * | 2007-04-24 | 2008-10-30 | Shashank Gulabchand Kasliwal | Extrusion method and apparatus |
JP5005506B2 (ja) * | 2007-11-02 | 2012-08-22 | 株式会社神戸製鋼所 | 混練度調整方法 |
US7635217B2 (en) * | 2008-01-03 | 2009-12-22 | Wenger Manufacturing, Inc. | Extruder having variable mid-barrel restriction and adjacent high intensity mixing assembly |
JP5430124B2 (ja) * | 2008-10-31 | 2014-02-26 | 株式会社神戸製鋼所 | 混練度調整装置及び混練度調整方法 |
JP6063505B2 (ja) * | 2015-03-27 | 2017-01-18 | 株式会社日本製鋼所 | 多軸混練機 |
JP6465091B2 (ja) * | 2016-09-30 | 2019-02-06 | トヨタ自動車株式会社 | 二軸押出混練装置およびそれを用いた電極ペーストの製造方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE631436C (de) * | 1936-06-20 | Oskar Winicker Dipl Ing | In Teilstuecke geteilte Vorlage fuer Strangpressen, insbesondere fuer entlueftende Strangpressen | |
LU38223A1 (de) * | 1959-04-10 | 1900-01-01 | ||
US3198491A (en) * | 1962-03-21 | 1965-08-03 | Baker Perkins Inc | Continuous mixer |
CH423082A (de) * | 1963-03-29 | 1966-10-31 | Lilon Establishment | Vorrichtung, bestehend aus einer Schneckenpresse und einer nachfolgenden Zahnradspinnpumpe, zur Herstellung von Fäden oder Fadenbündeln |
US3475787A (en) * | 1968-03-06 | 1969-11-04 | Nrm Corp | Extruder |
DE2243039C3 (de) * | 1972-09-01 | 1980-08-14 | Werner & Pfleiderer, 7000 Stuttgart | Kontinuierlich arbeitender Schnekkenknetmischer |
US3823921A (en) * | 1972-11-14 | 1974-07-16 | Teledyne Inc | Continuous processor for treating material |
FR2325278A7 (fr) * | 1973-02-27 | 1977-04-15 | Werner & Pfleiderer | Element de cisaillage pour boudineuse utilisable pour la preparation des matieres plastiques |
US4103355A (en) * | 1974-04-08 | 1978-07-25 | Fried. Krupp Gesellschaft Mit Beschrankter Haftung | Mixing extruder |
CA1073170A (en) * | 1975-11-28 | 1980-03-11 | David B. Todd | Multi-barrel continuous material processing machine with a multi-positionable flow controlling saddle part |
CH632445A5 (en) * | 1978-10-18 | 1982-10-15 | Baker Perkins Inc | Machine for the continuous processing of a viscous composition |
DE3042427C2 (de) * | 1980-11-11 | 1983-04-07 | Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover | Doppelschneckenstrangpresse zum Verarbeiten von thermoplastischen Formmassen, insbesondere Kunststoffen |
DD158014A1 (de) * | 1981-04-07 | 1982-12-22 | Plast Elastverarb Ingbetrieb | Vorrichtung zum entfernen gasfoermiger bestandteile aus polymeren werkstoffen |
US4462691A (en) * | 1983-01-13 | 1984-07-31 | Uniroyal, Inc. | Mixer/extruder having selectively variable shearing action therein |
DE3407789A1 (de) * | 1983-03-18 | 1984-10-25 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Schneckenextruder |
JPS61241123A (ja) * | 1985-04-18 | 1986-10-27 | Mitsubishi Heavy Ind Ltd | 二軸押出機の流路抵抗調整装置 |
-
1989
- 1989-05-08 EP EP89304628A patent/EP0342839B1/de not_active Expired - Lifetime
- 1989-05-08 DE DE68912642T patent/DE68912642T2/de not_active Expired - Fee Related
- 1989-05-16 BR BR898902270A patent/BR8902270A/pt not_active IP Right Cessation
- 1989-05-17 CA CA000599971A patent/CA1306838C/en not_active Expired - Fee Related
-
1990
- 1990-10-31 US US07/607,799 patent/US5145251A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
BR8902270A (pt) | 1990-03-01 |
EP0342839B1 (de) | 1994-01-26 |
CA1306838C (en) | 1992-09-01 |
EP0342839A3 (de) | 1991-01-02 |
DE68912642T2 (de) | 1994-06-23 |
US5145251A (en) | 1992-09-08 |
EP0342839A2 (de) | 1989-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |