ZA200006010B - Process for producing a homogeneous polyethylene material in the presence of catalyst. - Google Patents
Process for producing a homogeneous polyethylene material in the presence of catalyst.Info
- Publication number
- ZA200006010B ZA200006010B ZA200006010A ZA200006010A ZA200006010B ZA 200006010 B ZA200006010 B ZA 200006010B ZA 200006010 A ZA200006010 A ZA 200006010A ZA 200006010 A ZA200006010 A ZA 200006010A ZA 200006010 B ZA200006010 B ZA 200006010B
- Authority
- ZA
- South Africa
- Prior art keywords
- molecular weight
- producing
- polyethylene
- weight portion
- catalyst
- Prior art date
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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/2435—Loop-type reactors
-
- 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
-
- 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
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/65—Pretreating the metal or compound covered by group C08F4/64 before the final contacting with the metal or compound covered by group C08F4/44
- C08F4/652—Pretreating with metals or metal-containing compounds
- C08F4/654—Pretreating with metals or metal-containing compounds with magnesium or compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
-
- 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
- Y10S526/905—Polymerization in presence of transition metal containing catalyst in presence of hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI981034A FI981034A (fi) | 1998-05-08 | 1998-05-08 | HD-polyeteenikoostumukset ja menetelmä niiden valmistamiseksi |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200006010B true ZA200006010B (en) | 2001-04-24 |
Family
ID=8551689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200006010A ZA200006010B (en) | 1998-05-08 | 2000-10-25 | Process for producing a homogeneous polyethylene material in the presence of catalyst. |
Country Status (14)
Country | Link |
---|---|
US (2) | US6455642B1 (zh) |
EP (2) | EP1086155A1 (zh) |
JP (1) | JP2002514665A (zh) |
KR (1) | KR100537935B1 (zh) |
CN (2) | CN1130387C (zh) |
AT (1) | ATE255606T1 (zh) |
AU (2) | AU741875B2 (zh) |
BR (1) | BR9910294B1 (zh) |
CA (1) | CA2331628C (zh) |
DE (1) | DE69913346T2 (zh) |
ES (1) | ES2211091T3 (zh) |
FI (1) | FI981034A (zh) |
WO (2) | WO1999058584A1 (zh) |
ZA (1) | ZA200006010B (zh) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI111954B (fi) * | 2000-02-21 | 2003-10-15 | Borealis Tech Oy | Menetelmä polyeteenipäällysteen valmistamiseksi substraatille |
EP1146077B1 (en) * | 2000-04-13 | 2006-06-07 | Borealis Technology Oy | HDPE polymer composition |
US6486270B1 (en) * | 2000-08-25 | 2002-11-26 | Equistar Chemicals, Lp | High molecular weight, medium density polyethylene |
SE0103425D0 (sv) * | 2001-10-16 | 2001-10-16 | Borealis Tech Oy | Pipe for hot fluids |
ES2236371T5 (es) † | 2002-02-04 | 2011-08-01 | Borealis Technology Oy | Material laminar con elevada resistencia al impacto. |
DE60203707T2 (de) * | 2002-06-24 | 2006-03-02 | Borealis Technology Oy | Verfahren zur Herstellung einer Lldpe Zusammensetzung |
EP1572760B1 (en) * | 2002-12-18 | 2016-12-07 | Borealis Technology Oy | Method for the preparation of olefin polymerisation catalyst support and an olefin polymerisation catalyst |
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 |
BRPI0413229B1 (pt) * | 2003-08-20 | 2015-05-05 | Basell Poliolefine Srl | Processo para preparar um polietileno de larga distribuição de pesos moleculares |
SA04250276B1 (ar) | 2003-09-24 | 2009-02-07 | باسيل بوليوليفين جي ام بي اتش | عملية بلمرة لوسط معلق مع تركيزات عالية للمواد الصلبة خلال مفاعل حلقي |
EP1555292B1 (en) * | 2004-01-13 | 2015-12-23 | Borealis Technology Oy | Extrusion coating polyethylene |
DE102004020524A1 (de) | 2004-04-26 | 2005-11-10 | Basell Polyolefine Gmbh | Polyethylen und Katalysatorzusammensetzung zu dessen Herstellung |
GB0418581D0 (en) * | 2004-08-20 | 2004-09-22 | Solvay | Polymer composition |
DE602005020040D1 (de) | 2004-10-14 | 2010-04-29 | Basell Poliolefine Srl | Verfahren zur gasphasenpolymerisation von olefinen |
PT1655335E (pt) * | 2004-11-03 | 2007-02-28 | Borealis Tech Oy | Composição polimérica para moldagem por injecção |
ES2298666T3 (es) * | 2004-11-03 | 2008-05-16 | Borealis Technology Oy | Compuesto de polietileno multimodal con homogeneidad mejorada. |
EP1655339A1 (en) * | 2004-11-03 | 2006-05-10 | Borealis Technology Oy | Multimodal polyethylene composition obtainable with high activity catalyst |
ES2309445T3 (es) | 2004-12-17 | 2008-12-16 | Borealis Technology Oy | Proceso para la polimerizacion de olefinas en presencia de un catalizador de polimerizacion de las mismas. |
EP1674504A1 (en) * | 2004-12-22 | 2006-06-28 | Total Petrochemicals Research Feluy | Geo-membrane applications |
DE102005009896A1 (de) | 2005-03-01 | 2006-09-07 | Basell Polyolefine Gmbh | Polyethylen Formmasse zum Herstellen von Blasfolien mit verbesserten mechanischen Eigenschaften |
DE102005030941A1 (de) * | 2005-06-30 | 2007-01-11 | Basell Polyolefine Gmbh | Polyethylen Formmasse zur Herstellung von spritzgegossenen Fertigteilen |
DE102005040390A1 (de) * | 2005-08-25 | 2007-03-01 | Basell Polyolefine Gmbh | Multimodale Polyethylen Formmasse zur Herstellung von Rohren mit verbesserten mechanischen Eigenschaften |
CN1923861B (zh) * | 2005-09-02 | 2012-01-18 | 北方技术股份有限公司 | 在烯烃聚合催化剂存在下的烯烃聚合方法 |
US7786203B2 (en) * | 2005-09-16 | 2010-08-31 | Milliken & Company | Polymer compositions comprising nucleating or clarifying agents and articles made using such compositions |
EP1767556B1 (en) * | 2005-09-22 | 2009-08-26 | Borealis Technology Oy | Polyethylene composition having a broad molecular weight distribution |
CN101273445B (zh) * | 2005-09-28 | 2012-07-25 | 大见忠弘 | 可控气氛的接合装置、接合方法及电子装置 |
EP1780225A1 (en) * | 2005-11-01 | 2007-05-02 | Borealis Technology Oy | Ziegler-Natta catalyst and its use to prepare multimodal polyolefin |
WO2008077530A2 (en) * | 2006-12-22 | 2008-07-03 | Basell Polyolefine Gmbh | Multimodal polyethylene composition, mixed catalyst and process for preparing the composition |
EP1950241A1 (en) | 2007-01-25 | 2008-07-30 | Borealis Technology Oy | Multimodal medium density polyethylene polymer composition |
DE102007017903A1 (de) | 2007-04-13 | 2008-10-16 | Basell Polyolefine Gmbh | Polyethylen und Katalysatorzusammensetzung und Verfahren zu dessen Herstellung |
ES2407121T3 (es) * | 2007-12-18 | 2013-06-11 | Univation Technologies, Llc | Método para controlar la actividad de un catalizador bimodal durante una polimerización |
WO2010009242A2 (en) * | 2008-07-16 | 2010-01-21 | Zimmer, Inc. | Thermally treated ceramic coating for implants |
ES2381849T3 (es) * | 2008-11-17 | 2012-06-01 | Borealis Ag | Procedimiento multietapa para producir polietileno con formación de gel reducida |
KR101822805B1 (ko) * | 2010-06-22 | 2018-01-29 | 바셀 폴리올레핀 이탈리아 에스.알.엘 | 올레핀의 기체상 중합 방법 |
WO2012143421A1 (en) | 2011-04-19 | 2012-10-26 | Basell Polyolefine Gmbh | Novel polymer composition for use in blow moulding |
EP2607385B1 (en) | 2011-12-19 | 2014-03-19 | Borealis AG | Loop reactor providing an advanced production split control |
WO2014060231A1 (en) * | 2012-10-16 | 2014-04-24 | Ineos Europe Ag | Process for the production of a polymer in a gas phase fluidised bed reactor |
EP2909264B1 (en) * | 2012-10-22 | 2020-11-25 | Basell Polyolefine GmbH | Polyethylene composition having high swell ratio |
US10266625B2 (en) | 2014-12-09 | 2019-04-23 | China Petroleum & Chemical Corporation | Olefin polymerization apparatus and olefin polymerization process |
WO2017207221A1 (en) | 2016-06-03 | 2017-12-07 | Borealis Ag | Multilayer structure |
CN109863183B (zh) * | 2016-11-04 | 2021-09-07 | 巴塞尔聚烯烃意大利有限公司 | 烯烃聚合的工艺 |
MY192386A (en) * | 2016-12-22 | 2022-08-18 | Basell Polyolefine Gmbh | Process for start-up of a multizone circulating reactor |
CN111902467B (zh) | 2018-02-05 | 2022-11-11 | 埃克森美孚化学专利公司 | 通过添加超高分子量高密度聚乙烯增强的lldpe的加工性 |
WO2020025757A1 (en) | 2018-08-02 | 2020-02-06 | Borealis Ag | Process for polymerizing ethylene in a multi-stage polymerization process |
MY194659A (en) | 2018-10-26 | 2022-12-12 | Borealis Ag | Multi-layered article with improved adhesion |
CN113993977A (zh) | 2019-05-24 | 2022-01-28 | 伊士曼化工公司 | 进入气体裂化器中加工的液体流中混入少量热解油 |
US11945998B2 (en) | 2019-10-31 | 2024-04-02 | Eastman Chemical Company | Processes and systems for making recycle content hydrocarbons |
WO2021092306A1 (en) | 2019-11-07 | 2021-05-14 | Eastman Chemical Company | Recycle content alpha olefins and fatty alcohols |
CN112300312B (zh) * | 2020-11-05 | 2023-03-14 | 杭州双安科技有限公司 | 一种聚乙烯的合成方法 |
WO2022111966A1 (en) | 2020-11-27 | 2022-06-02 | Borealis Ag | Catalyst feed system |
US20230416428A1 (en) | 2020-11-27 | 2023-12-28 | Borealis Ag | Process |
US11845814B2 (en) | 2022-02-01 | 2023-12-19 | Chevron Phillips Chemical Company Lp | Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3723526A1 (de) | 1987-07-16 | 1989-01-26 | Hoechst Ag | Verfahren zur herstellung eines polyolefins mit einer breiten molmassenverteilung |
FI86867C (fi) | 1990-12-28 | 1992-10-26 | Neste Oy | Flerstegsprocess foer framstaellning av polyeten |
FI98819C (fi) | 1993-03-26 | 1997-08-25 | Borealis Polymers Oy | Prosessi olefiinipolymeerien valmistamiseksi ja prosessilla valmistetut tuotteet |
FI942949A0 (fi) * | 1994-06-20 | 1994-06-20 | Borealis Polymers Oy | Prokatalysator foer producering av etenpolymerer och foerfarande foer framstaellning daerav |
US5405901A (en) | 1994-07-06 | 1995-04-11 | Union Carbide Chemicals & Plastics Technology Corporation | Process of producing ethylene polymer blends in gas phase |
FI96216C (fi) * | 1994-12-16 | 1996-05-27 | Borealis Polymers Oy | Prosessi polyeteenin valmistamiseksi |
FI101546B (fi) * | 1994-12-16 | 1998-07-15 | Borealis Polymers Oy | Polyeteenikompositio |
FI104827B (fi) * | 1995-04-12 | 2000-04-14 | Borealis Polymers Oy | Menetelmä likaantumisen ja kerrostumisen estämiseksi kaasufaasireaktoreissa |
SE504455C2 (sv) * | 1995-07-10 | 1997-02-17 | Borealis Polymers Oy | Kabelmantlingskomposition, dess användning samt sätt för dess framställning |
US5677375A (en) | 1995-07-21 | 1997-10-14 | Union Carbide Chemicals & Plastics Technology Corporation | Process for producing an in situ polyethylene blend |
ID16442A (id) | 1996-01-22 | 1997-10-02 | Dow Chemical Co | Polimer etilena berat molekul ultra rendah |
-
1998
- 1998-05-08 FI FI981034A patent/FI981034A/fi unknown
-
1999
- 1999-05-10 CA CA002331628A patent/CA2331628C/en not_active Expired - Fee Related
- 1999-05-10 CN CN99808337A patent/CN1130387C/zh not_active Expired - Lifetime
- 1999-05-10 JP JP2000548386A patent/JP2002514665A/ja active Pending
- 1999-05-10 ES ES99923624T patent/ES2211091T3/es not_active Expired - Lifetime
- 1999-05-10 EP EP99923623A patent/EP1086155A1/en not_active Withdrawn
- 1999-05-10 CN CN99808404A patent/CN1125091C/zh not_active Expired - Fee Related
- 1999-05-10 KR KR10-2000-7012482A patent/KR100537935B1/ko not_active IP Right Cessation
- 1999-05-10 EP EP99923624A patent/EP1090048B1/en not_active Expired - Lifetime
- 1999-05-10 US US09/674,854 patent/US6455642B1/en not_active Expired - Lifetime
- 1999-05-10 BR BRPI9910294-3A patent/BR9910294B1/pt not_active IP Right Cessation
- 1999-05-10 AT AT99923624T patent/ATE255606T1/de not_active IP Right Cessation
- 1999-05-10 AU AU40428/99A patent/AU741875B2/en not_active Ceased
- 1999-05-10 US US09/674,912 patent/US6642323B1/en not_active Expired - Fee Related
- 1999-05-10 WO PCT/FI1999/000392 patent/WO1999058584A1/en active IP Right Grant
- 1999-05-10 AU AU40427/99A patent/AU4042799A/en not_active Abandoned
- 1999-05-10 DE DE69913346T patent/DE69913346T2/de not_active Expired - Lifetime
- 1999-05-10 WO PCT/FI1999/000391 patent/WO1999058583A1/en not_active Application Discontinuation
-
2000
- 2000-10-25 ZA ZA200006010A patent/ZA200006010B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
KR20010071223A (ko) | 2001-07-28 |
FI981034A0 (fi) | 1998-05-08 |
CN1125091C (zh) | 2003-10-22 |
EP1090048B1 (en) | 2003-12-03 |
ES2211091T3 (es) | 2004-07-01 |
CN1311801A (zh) | 2001-09-05 |
WO1999058584A1 (en) | 1999-11-18 |
DE69913346T2 (de) | 2004-10-14 |
JP2002514665A (ja) | 2002-05-21 |
AU4042899A (en) | 1999-11-29 |
ATE255606T1 (de) | 2003-12-15 |
KR100537935B1 (ko) | 2005-12-21 |
AU741875B2 (en) | 2001-12-13 |
AU4042799A (en) | 1999-11-29 |
CA2331628C (en) | 2009-01-27 |
EP1086155A1 (en) | 2001-03-28 |
BR9910294A (pt) | 2001-01-16 |
EP1090048A1 (en) | 2001-04-11 |
CN1130387C (zh) | 2003-12-10 |
BR9910294B1 (pt) | 2009-05-05 |
CN1308644A (zh) | 2001-08-15 |
US6642323B1 (en) | 2003-11-04 |
US6455642B1 (en) | 2002-09-24 |
CA2331628A1 (en) | 1999-11-18 |
FI981034A (fi) | 1999-11-09 |
DE69913346D1 (de) | 2004-01-15 |
WO1999058583A1 (en) | 1999-11-18 |
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Zandona | Process for preparing a catalytic system, olefin(co) polymerisation process and(co) polymers of at least one olefin | |
JPS5634713A (en) | Preparation of polyethylene by continuous multistage polymerization | |
JPS5634712A (en) | Preparation of polyethylene by continuous multistage polymerization |