ES8707976A1 - Procedimiento y aparato para la polimerizacion de alfa-olefinas en fase gaseosa. - Google Patents
Procedimiento y aparato para la polimerizacion de alfa-olefinas en fase gaseosa.Info
- Publication number
- ES8707976A1 ES8707976A1 ES552180A ES552180A ES8707976A1 ES 8707976 A1 ES8707976 A1 ES 8707976A1 ES 552180 A ES552180 A ES 552180A ES 552180 A ES552180 A ES 552180A ES 8707976 A1 ES8707976 A1 ES 8707976A1
- Authority
- ES
- Spain
- Prior art keywords
- olefins
- alpha
- gas phase
- several stages
- polymerisation
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/34—Polymerisation in gaseous state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/02—Ethene
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/901—Monomer polymerized in vapor state in presence of transition metal containing catalyst
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Combustion & Propulsion (AREA)
- Engineering & Computer Science (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
Abstract
MODIFICACIONES EN UN PROCEDIMIENTO PARA POLIMERIZAR A-OLEFINAS EN FASE GASEOSA. CONSISTE EN SOMETER AL POLVO DE POLIOLEFINA CON UNA MEZCLA GASEOSA DE REACCION ANTES DE TRANSFERIRSE AL SEGUNDO REACTOR DE POLIMERIZACION A: A) UNA DESCOMPRESION PARA REBAJAR LA PRESION DE LA MEZCLA GASEOSA DE 1/50 A 1/5 DE LA PRESION EXISTENTE EN EL REACTOR DE POLIMERIZACION DEL QUE SE EXTRAE EL POLVO; B) UNA SEPARACION DEL POLVO DE POLIOLEFINA DE LA MEZCLA GASEOSA; Y C) UNA COMPRESION PARA ELEVAR LA PRESION DEL POLVO DE POLIOLEFINA Y DE LA MEZCLA GASEOSA RESIDUAL A LA PRESION DEL SIGUIENTE REACTOR DE POLIMERIZACION, ENTRE 20JC Y LA TEMPERATURA DEL REACTOR DE POLIMERIZACION. SE UTILIZA EN PROCESOS DE FABRICACION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8502345A FR2577558B1 (fr) | 1985-02-19 | 1985-02-19 | Polymerisation en plusieurs etapes d'alpha-olefines en phase gazeuse |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8707976A1 true ES8707976A1 (es) | 1987-09-01 |
ES552180A0 ES552180A0 (es) | 1987-09-01 |
Family
ID=9316406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES552180A Expired ES8707976A1 (es) | 1985-02-19 | 1986-02-19 | Procedimiento y aparato para la polimerizacion de alfa-olefinas en fase gaseosa. |
Country Status (15)
Country | Link |
---|---|
US (2) | US4703094A (es) |
EP (1) | EP0192427B1 (es) |
JP (1) | JPH0667977B2 (es) |
KR (1) | KR930012266B1 (es) |
AT (1) | ATE44157T1 (es) |
AU (1) | AU591650B2 (es) |
CA (1) | CA1248692A (es) |
DE (1) | DE3664050D1 (es) |
ES (1) | ES8707976A1 (es) |
FI (1) | FI81811C (es) |
FR (1) | FR2577558B1 (es) |
NO (1) | NO165845C (es) |
NZ (1) | NZ215189A (es) |
PT (1) | PT82040B (es) |
ZA (1) | ZA861201B (es) |
Families Citing this family (79)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5208109A (en) * | 1982-06-24 | 1993-05-04 | Bp Chemicals Limited | Process for the polymerization and copolymerization of alpha-olefins in a fluidized bed |
US5047468A (en) * | 1988-11-16 | 1991-09-10 | Union Carbide Chemicals And Plastics Technology Corporation | Process for the in situ blending of polymers |
US5149738A (en) * | 1988-11-16 | 1992-09-22 | Union Carbide Chemicals & Plastics Technology Corporation | Process for the in situ blending of polymers |
US5126398A (en) * | 1988-11-16 | 1992-06-30 | Union Carbide Chemicals & Plastics Technology Corporation | Process for the in situ blending of polymers |
DE3904079A1 (de) * | 1989-02-11 | 1990-08-23 | Basf Ag | Verfahren zur herstellung von propylen-ethylen-copolymerisaten |
US6025448A (en) | 1989-08-31 | 2000-02-15 | The Dow Chemical Company | Gas phase polymerization of olefins |
US5235009A (en) * | 1989-10-16 | 1993-08-10 | Phillips Petroleum Company | Gas phase polymerization in multi-stage fluid beds |
US5032562A (en) * | 1989-12-27 | 1991-07-16 | Mobil Oil Corporation | Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution |
DE4019053A1 (de) * | 1990-06-15 | 1991-12-19 | Basf Ag | Polymerisate des propylens mit breitem molmassenverhaeltnis q |
US5242661A (en) * | 1990-06-28 | 1993-09-07 | Liquid Carbonic, Inc. | Apparatus for direct fluorination of polymeric resins |
US6538080B1 (en) | 1990-07-03 | 2003-03-25 | Bp Chemicals Limited | Gas phase polymerization of olefins |
FR2664506B1 (fr) * | 1990-07-13 | 1993-05-07 | Bp Chemicals Snc | Procede et dispositif d'introduction d'une poudre dans un reacteur. |
TW203062B (es) * | 1990-11-15 | 1993-04-01 | Sumitomo Chemical Co | |
WO1992009638A1 (en) * | 1990-12-03 | 1992-06-11 | Okhtinskoe Nauchno-Proizvodstvennoe Obiedinenie 'plastpolimer' | Method for starting a reactor for catalytic gas-phase polymerization of olefins |
US6194520B1 (en) | 1991-03-06 | 2001-02-27 | Mobil Oil Corporation | Ethylene polymer resins for blow molding applications |
US6316546B1 (en) | 1991-03-06 | 2001-11-13 | Exxonmobil Oil Corporation | Ethylene polymer film resins |
US5688865A (en) * | 1991-03-06 | 1997-11-18 | Mobil Oil Corporation | Process and system for preventing pressure tap fouling in tandem polymerization reactors |
IT1246614B (it) | 1991-06-03 | 1994-11-24 | Himont Inc | Procedimento per la polimerizzazione in fase gas delle olefine |
US5693583A (en) * | 1991-06-10 | 1997-12-02 | Mobil Oil Corporation | High activity polyethylene catalysts which produce bimodal or trimodal product molecular weight distributions |
ES2165354T3 (es) * | 1991-07-24 | 2002-03-16 | Exxonmobil Oil Corp | Resinas de polimero de etileno mejoradas para peliculas. |
FR2680792B1 (fr) * | 1991-08-30 | 1994-09-09 | Bp Chemicals Snc | Procede de fabrication d'un polymere de l'ethylene. |
ES2114969T3 (es) * | 1992-06-18 | 1998-06-16 | Montell Technology Company Bv | Procedimiento y aparato para la polimerizacion en fase gaseosa de olefinas. |
US5284613A (en) * | 1992-09-04 | 1994-02-08 | Mobil Oil Corporation | Producing blown film and blends from bimodal high density high molecular weight film resin using magnesium oxide-supported Ziegler catalyst |
US5314746A (en) * | 1992-11-12 | 1994-05-24 | Quantum Chemical Corporation | Soft, puncture- and tear-resistant polyolefin films |
CA2102542A1 (en) * | 1992-11-12 | 1994-05-13 | Thaddeus W. Klimek | Gas-phase process for producing copolymer of propylene and ethylene and polyolefin films made therefrom |
US5587436A (en) * | 1992-11-12 | 1996-12-24 | Quantum Chemical Corporation | Process for controlling the polymerization of propylene and ethylene and copolymer products |
US5705576A (en) * | 1992-11-12 | 1998-01-06 | Quantum Chemical Corporation | Process for controlling production of in-situ thermoplastic polyolefins and products |
IT1256648B (it) * | 1992-12-11 | 1995-12-12 | Montecatini Tecnologie Srl | Componenti e catalizzatori per la polimerizzazione delle olefine |
US5332706A (en) * | 1992-12-28 | 1994-07-26 | Mobil Oil Corporation | Process and a catalyst for preventing reactor fouling |
US5602067A (en) * | 1992-12-28 | 1997-02-11 | Mobil Oil Corporation | Process and a catalyst for preventing reactor fouling |
US5420220A (en) * | 1993-03-25 | 1995-05-30 | Mobil Oil Corporation | LLDPE films |
US5558472A (en) * | 1993-10-07 | 1996-09-24 | Sumitomo Chemical Company, Limited | Method and apparatus for transporting particles |
WO1995011264A1 (en) * | 1993-10-21 | 1995-04-27 | Mobil Oil Corporation | Polyolefin blends of bimodal molecular weight distribution |
US5614456A (en) * | 1993-11-15 | 1997-03-25 | Mobil Oil Corporation | Catalyst for bimodal molecular weight distribution ethylene polymers and copolymers |
US5525678A (en) * | 1994-09-22 | 1996-06-11 | Mobil Oil Corporation | Process for controlling the MWD of a broad/bimodal resin produced in a single reactor |
ES2116188B1 (es) | 1994-12-30 | 1999-04-01 | Repsol Quimica Sa | Proceso de obtencion de poliolefinas con distribuciones de pesos moleculares anchas, bimodales o multimodales. |
BE1009308A3 (fr) * | 1995-04-28 | 1997-02-04 | Solvay | Polymere d'ethylene et procedes pour son obtention. |
DE19522283A1 (de) * | 1995-06-20 | 1997-01-02 | Basf Ag | Vorrichtung zurGasphasenpolymerisation von C¶2¶-C¶8¶-Alk-1-enen |
US5882750A (en) * | 1995-07-03 | 1999-03-16 | Mobil Oil Corporation | Single reactor bimodal HMW-HDPE film resin with improved bubble stability |
IT1275573B (it) * | 1995-07-20 | 1997-08-07 | Spherilene Spa | Processo ed apparecchiatura per la pomimerizzazione in fase gas delle alfa-olefine |
US6486089B1 (en) | 1995-11-09 | 2002-11-26 | Exxonmobil Oil Corporation | Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution |
US5665818A (en) * | 1996-03-05 | 1997-09-09 | Union Carbide Chemicals & Plastics Technology Corporation | High activity staged reactor process |
US6417130B1 (en) | 1996-03-25 | 2002-07-09 | Exxonmobil Oil Corporation | One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization |
JP2000514493A (ja) * | 1996-07-15 | 2000-10-31 | モービル・オイル・コーポレーション | 吹込成形およびフィルム用途用コモノマー前処理2金属系触媒 |
US6069212A (en) * | 1996-08-20 | 2000-05-30 | Bp Amoco Corporation | Transfer of polymer particles between vapor phase polymerization reactors containing quench-cooled subfluidized particulate beds of polymerized monomer |
DE19728141A1 (de) * | 1997-07-02 | 1999-01-07 | Basf Ag | Verfahren zur Polymerisation von C2-C8-Alk-1-enen mittels eines Ziegler-Natta-Katalysatorsystems |
US6051525A (en) * | 1997-07-14 | 2000-04-18 | Mobil Corporation | Catalyst for the manufacture of polyethylene with a broad or bimodal molecular weight distribution |
US6153551A (en) * | 1997-07-14 | 2000-11-28 | Mobil Oil Corporation | Preparation of supported catalyst using trialkylaluminum-metallocene contact products |
BE1011332A3 (fr) * | 1997-08-20 | 1999-07-06 | Solvay | Dispositif de dechargement d'un reacteur de polymerisation a lit fluidise. |
US6112777A (en) * | 1998-11-19 | 2000-09-05 | Union Carbide Chemicals & Plastics Technology Corporation | Process for bulk handling elastomeric materials via temperature control |
KR100503137B1 (ko) * | 1999-03-31 | 2005-07-25 | 미쓰이 가가쿠 가부시키가이샤 | 다단 기상 중합 방법, 다단 기상 중합 장치 및 다단 기상중합 장치에서의 중합체 분말 내의 부성분 동반량 저감 장치 |
AU6163000A (en) * | 1999-07-08 | 2001-01-30 | Borealis Technology Oy | Process for producing polypropylene |
US6403520B1 (en) | 1999-09-17 | 2002-06-11 | Saudi Basic Industries Corporation | Catalyst compositions for polymerizing olefins to multimodal molecular weight distribution polymer, processes for production and use of the catalyst |
US6294626B1 (en) | 1999-11-15 | 2001-09-25 | Equistar Chemicals, Lp | Olefin polymerization catalysts containing modified boraaryl ligands |
US6359083B1 (en) | 2000-05-02 | 2002-03-19 | Eastman Chemical Company | Olefin polymerization process |
DE10025727A1 (de) * | 2000-05-25 | 2002-01-03 | Basell Polypropylen Gmbh | Hochfließfähige Propylenblockcopolymerisate |
US6812304B2 (en) | 2000-06-14 | 2004-11-02 | Equistar Chemicals, Lp | Process for producing improved premixed supported boraaryl catalysts |
US6444765B1 (en) | 2000-06-14 | 2002-09-03 | Equistar Chemicals, Lp | Olefin polymerization process for producing broad MWD polymers |
CN1275985C (zh) | 2001-11-30 | 2006-09-20 | 埃克森美孚化学专利公司 | 用非单中心/单中心催化剂结合物制备的乙烯/α-烯烃共聚物及其制备方法和用途 |
US6914104B2 (en) * | 2002-04-19 | 2005-07-05 | Sumitomo Chemical Company, Limited | Process for polymerization of α-olefin |
EP1384751A1 (en) * | 2002-07-25 | 2004-01-28 | SOLVAY POLYOLEFINS EUROPE - BELGIUM (Société Anonyme) | Container formed from multimodal ethylene polymer |
TW200504093A (en) * | 2003-05-12 | 2005-02-01 | Dow Global Technologies Inc | Polymer composition and process to manufacture high molecular weight-high density polyethylene and film therefrom |
SG119367A1 (en) * | 2004-07-16 | 2006-02-28 | Sumitomo Chemical Co | Apparatus for continuous polymerization of olefin method for transferring a polymer powder and method for continuous polymerization of olefin |
EP1630178A1 (en) | 2004-08-10 | 2006-03-01 | Innovene Manufacturing Belgium NV | Polymerisation process |
US7662894B2 (en) * | 2006-12-19 | 2010-02-16 | Saudi Bosic Industries Corporation | Polymer supported metallocene catalyst composition for polymerizing olefins |
DE102007014621A1 (de) | 2007-03-23 | 2008-09-25 | Innogel Ag | Verfahren zur Herstellung von Molekulargewichtsverteilungen mit kurzkettigem Anteil mittels Post-Reaktor Extrusion |
RU2475501C2 (ru) * | 2007-09-19 | 2013-02-20 | Базелль Полиолефин Италия С.Р.Л. | Многостадийный способ полимеризации олефинов |
EP2428524A4 (en) * | 2010-04-30 | 2018-01-03 | Daelim Industrial Co., Ltd. | Gas-phase polymerization of alpha-olefins |
EP2602269A1 (en) | 2011-12-06 | 2013-06-12 | Basell Polyolefine GmbH | Multistage process for the polymerization of olefins |
CN103772535B (zh) * | 2012-10-18 | 2016-03-30 | 中国石油化工股份有限公司 | 烯烃聚合装置及其在聚合物转移及单体回收中的应用 |
EP2803680A1 (en) * | 2013-05-16 | 2014-11-19 | Basell Polyolefine GmbH | Multistage process for the polymerization of olefins |
US9079993B1 (en) * | 2014-05-22 | 2015-07-14 | Chevron Phillips Chemical Company Lp | High clarity low haze compositions |
KR20160077702A (ko) | 2014-12-24 | 2016-07-04 | 한화토탈 주식회사 | 연속 중합 공정에서의 폴리올레핀 이송 방법 |
KR102070309B1 (ko) * | 2015-11-13 | 2020-01-28 | 주식회사 엘지화학 | 공액디엔 제조장치 및 제조방법 |
JP6902965B2 (ja) | 2017-08-29 | 2021-07-14 | 住友化学株式会社 | ポリオレフィンの製造方法 |
US11168157B2 (en) | 2018-12-04 | 2021-11-09 | Chevron Phillips Chemical Company Lp | Melt flow index response in polyethylene reactors |
US20210332167A1 (en) * | 2018-12-18 | 2021-10-28 | Basell Polyolefine Gmbh | Gas-phase process for preparing ethylene polymers |
US11608392B2 (en) | 2020-11-17 | 2023-03-21 | Ineos Usa Llc | Polymerization process |
EP4144435A1 (en) * | 2021-09-01 | 2023-03-08 | Borealis AG | Gas phase polymerization process with improved gas recycling |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3894998A (en) * | 1973-01-11 | 1975-07-15 | Du Pont | Multiple stage reactor system |
JPS56166207A (en) * | 1980-05-27 | 1981-12-21 | Mitsui Petrochem Ind Ltd | Gas-phase polymerization of olefin |
JPS56166208A (en) * | 1980-05-27 | 1981-12-21 | Mitsui Petrochem Ind Ltd | Gas-phase polymerization of olefin |
JPS6045645B2 (ja) * | 1980-10-09 | 1985-10-11 | 三井化学株式会社 | オレフイン類の気相重合方法 |
JPS59230010A (ja) * | 1983-06-11 | 1984-12-24 | Chisso Corp | 気相多段重合方法 |
-
1985
- 1985-02-19 FR FR8502345A patent/FR2577558B1/fr not_active Expired
-
1986
- 1986-02-12 US US06/828,966 patent/US4703094A/en not_active Expired - Lifetime
- 1986-02-13 DE DE8686301009T patent/DE3664050D1/de not_active Expired
- 1986-02-13 AT AT86301009T patent/ATE44157T1/de not_active IP Right Cessation
- 1986-02-13 EP EP86301009A patent/EP0192427B1/en not_active Expired
- 1986-02-17 NZ NZ215189A patent/NZ215189A/xx unknown
- 1986-02-18 FI FI860723A patent/FI81811C/fi not_active IP Right Cessation
- 1986-02-18 NO NO860606A patent/NO165845C/no not_active IP Right Cessation
- 1986-02-18 CA CA000502118A patent/CA1248692A/en not_active Expired
- 1986-02-18 AU AU53701/86A patent/AU591650B2/en not_active Ceased
- 1986-02-18 PT PT82040A patent/PT82040B/pt not_active IP Right Cessation
- 1986-02-18 ZA ZA861201A patent/ZA861201B/xx unknown
- 1986-02-19 JP JP61034953A patent/JPH0667977B2/ja not_active Expired - Lifetime
- 1986-02-19 ES ES552180A patent/ES8707976A1/es not_active Expired
- 1986-02-19 KR KR1019860001150A patent/KR930012266B1/ko not_active IP Right Cessation
-
1987
- 1987-07-02 US US07/069,244 patent/US4902483A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU591650B2 (en) | 1989-12-14 |
US4902483A (en) | 1990-02-20 |
NZ215189A (en) | 1988-07-28 |
FR2577558A1 (fr) | 1986-08-22 |
JPS61200104A (ja) | 1986-09-04 |
AU5370186A (en) | 1986-08-28 |
KR930012266B1 (ko) | 1993-12-28 |
ATE44157T1 (de) | 1989-07-15 |
NO165845C (no) | 1991-04-17 |
FR2577558B1 (fr) | 1987-03-06 |
FI81811B (fi) | 1990-08-31 |
DE3664050D1 (en) | 1989-07-27 |
NO165845B (no) | 1991-01-07 |
PT82040B (pt) | 1988-05-27 |
PT82040A (en) | 1986-03-01 |
JPH0667977B2 (ja) | 1994-08-31 |
US4703094A (en) | 1987-10-27 |
ZA861201B (en) | 1987-10-28 |
FI860723A (fi) | 1986-08-20 |
FI860723A0 (fi) | 1986-02-18 |
EP0192427A1 (en) | 1986-08-27 |
CA1248692A (en) | 1989-01-10 |
ES552180A0 (es) | 1987-09-01 |
NO860606L (no) | 1986-08-20 |
FI81811C (fi) | 1998-01-21 |
EP0192427B1 (en) | 1989-06-21 |
KR860006492A (ko) | 1986-09-11 |
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