CA2017190A1 - Process for the preparation of ethylene polymers - Google Patents

Process for the preparation of ethylene polymers

Info

Publication number
CA2017190A1
CA2017190A1 CA2017190A CA2017190A CA2017190A1 CA 2017190 A1 CA2017190 A1 CA 2017190A1 CA 2017190 A CA2017190 A CA 2017190A CA 2017190 A CA2017190 A CA 2017190A CA 2017190 A1 CA2017190 A1 CA 2017190A1
Authority
CA
Canada
Prior art keywords
preparation
grain
products
ethylene polymers
metallocene
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.)
Granted
Application number
CA2017190A
Other languages
French (fr)
Other versions
CA2017190C (en
Inventor
Walter Spaleck
Martin Antberg
Ludwig Bohm
Jurgen Rohrmann
Hartmut Luker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Basell Polyolefine GmbH
Original Assignee
Hoechst AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6381117&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2017190(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of CA2017190A1 publication Critical patent/CA2017190A1/en
Application granted granted Critical
Publication of CA2017190C publication Critical patent/CA2017190C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02Ethene
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F17/00Metallocenes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02Ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; 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
    • C08F4/60Metals; 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
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/639Component covered by group C08F4/62 containing a transition metal-carbon bond
    • C08F4/63912Component covered by group C08F4/62 containing a transition metal-carbon bond in combination with an organoaluminium compound
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; 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
    • C08F4/60Metals; 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
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/639Component covered by group C08F4/62 containing a transition metal-carbon bond
    • C08F4/6392Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
    • C08F4/63922Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
    • C08F4/63927Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually bridged
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

Process for the preparation of ethylene polymers The preparation of polyethylene and ethylene-1-olefin copolymers in the suspension or gas phase process with the aid of metallocene/aluminoxane catalysts whose metallocene component is a bridged biscyclopentadienyl complex offers particular advantages.
Depending on the structure of the complex, the use of these complexes gives, with high activity, products in a very broad molecular-weight range and permits the production of very varied grain morphologies of the products, such as high and low bulk density, extremely small and extremely large mean grain diameters and various grain shapes. The variety of grain morphologies which can be achieved opens up various possibilities for the use of such polyethylene powders in sintering processes.
CA002017190A 1989-05-20 1990-05-18 Process for the preparation of ethylene polymers Expired - Lifetime CA2017190C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3916555A DE3916555A1 (en) 1989-05-20 1989-05-20 PROCESS FOR THE PRODUCTION OF ETHYLENE POLYMERS
DEP3916555.8 1989-05-20

Publications (2)

Publication Number Publication Date
CA2017190A1 true CA2017190A1 (en) 1990-11-20
CA2017190C CA2017190C (en) 2001-01-30

Family

ID=6381117

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002017190A Expired - Lifetime CA2017190C (en) 1989-05-20 1990-05-18 Process for the preparation of ethylene polymers

Country Status (7)

Country Link
EP (2) EP0399348B1 (en)
JP (1) JP2904301B2 (en)
AU (1) AU630451B2 (en)
CA (1) CA2017190C (en)
DE (3) DE3916555A1 (en)
ES (2) ES2116263T3 (en)
ZA (1) ZA903831B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5350817A (en) * 1991-05-27 1994-09-27 Hoechst Ag Process for the preparation of polyolefins having a broad molecular weight distribution
US5360921A (en) * 1993-03-22 1994-11-01 Mitsui Petrochemical Industries, Ltd. Process for preparing cyclopentadienyl group-containing silicon compound or cyclopentadienyl group-containing germanium compound
US5504232A (en) * 1992-08-03 1996-04-02 Hoechst Aktiengesellschaft Process for the preparation of an olefin polymer using specific metallocenes
US5696045A (en) * 1993-09-29 1997-12-09 Winter; Andreas Process for the preparation of polyolefins
US5710224A (en) * 1991-07-23 1998-01-20 Phillips Petroleum Company Method for producing polymer of ethylene
US5852143A (en) * 1995-05-16 1998-12-22 Union Carbide Chemicals & Plastics Technology Corporation Production of polyethylene using stereoisomeric metallocenes
WO1999002569A1 (en) * 1997-07-14 1999-01-21 The Board Of Trustees Of The Leland Stanford, Jr. University CATALYSTS AND PROCESSES FOR THE SYNTHESIS OF ALTERNATING ETHYLENE/α-OLEFIN COPOLYMERS, AND ISOTACTIC COPOLYMERS THEREOF
US5962359A (en) * 1994-12-28 1999-10-05 Targor Gmbh Metallocene compound and its use as catalyst component
WO1999055748A1 (en) * 1998-04-27 1999-11-04 Fina Research S.A. Polyolefin production
US6218488B1 (en) 1998-03-04 2001-04-17 Exxon Mobil Chemical Patents Inc. Polymerization process for olefin copolymers using bridged hafnocene compounds
US6818585B2 (en) 1998-12-30 2004-11-16 Univation Technologies, Llc Catalyst compounds, catalyst systems thereof and their use in a polymerization process
US8822611B2 (en) 2004-11-19 2014-09-02 Total Research & Technology Feluy Solid state properties of polyethylene prepared with tetrahydroindenyl-based catalyst system

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032266A1 (en) * 1990-10-11 1992-04-16 Hoechst Ag METHOD FOR PRODUCING A POLYOLEFIN
US5466766A (en) * 1991-05-09 1995-11-14 Phillips Petroleum Company Metallocenes and processes therefor and therewith
DE4121368A1 (en) * 1991-06-28 1993-01-07 Hoechst Ag CATALYST AND METHOD FOR THE PRODUCTION OF HIGH-MOLECULAR POLYOLEFINES
TW300901B (en) * 1991-08-26 1997-03-21 Hoechst Ag
DE4130352A1 (en) * 1991-09-12 1993-03-18 Basf Ag DISABLED AND REACTIVATED METALLOCENE CATALYST SYSTEMS
DE4139261A1 (en) * 1991-11-29 1993-06-03 Basf Ag LOW DENSITY ETHYLENE COPOLYMERISATE
GB9125934D0 (en) 1991-12-05 1992-02-05 Exxon Chemical Patents Inc Process for polymerising olefinic feeds under pressure
US5302733A (en) * 1992-03-30 1994-04-12 Ethyl Corporation Preparation of metallocenes
JP2007146183A (en) * 1992-12-07 2007-06-14 Mitsubishi Chemicals Corp Resin composition for extrusion-molded article
IT1270253B (en) 1994-06-20 1997-04-29 Spherilene Srl ETHYLENE COPOLYMERS AND PROCEDURE FOR THE PREPARATION OF ETHYLENE POLYMERS
DE4436113A1 (en) 1994-10-10 1996-04-11 Hoechst Ag Metallocene compound
CN1111173C (en) * 1994-12-20 2003-06-11 三井化学株式会社 Process for the preparation of ethylene polymer and ethylene polymer
UA47394C2 (en) * 1995-05-16 2002-07-15 Юнівейшн Текнолоджіз, Ллс Ethylene polymer with improved processability and an article containing the ethylene polymer
DE19637669A1 (en) * 1996-09-16 1998-03-19 Hoechst Ag Process for the preparation of a methylene-bridged biscyclopentadienyl compound
GB9718073D0 (en) * 1997-08-28 1997-10-29 Zeneca Ltd Organometallic compounds,their preparation and use
CA2294239A1 (en) 1998-04-21 1999-10-28 Montell Technology Company B.V. Process for the preparation of copolymers of ethylene with alpha-olefins
CA2317485A1 (en) 1998-11-20 2000-06-02 Montell Technology Company B.V. Bridged metallocenes, preparation, use in catalytic systems
US6339134B1 (en) 1999-05-06 2002-01-15 Univation Technologies, Llc Polymerization process for producing easier processing polymers
EP1059332A1 (en) 1999-06-10 2000-12-13 Fina Research S.A. Polypropylene with high melt strength and drawability
CA2392949A1 (en) * 1999-12-01 2001-06-07 Univation Technologies Llc Catalyst compounds, catalyst systems thereof and their use in a polymerization process
JP2003518530A (en) 1999-12-28 2003-06-10 バセル テクノロジー カンパニー ビー.ブイ. Method for producing ethylene polymers
CA2398529A1 (en) 2000-02-08 2001-08-16 Exxonmobil Chemical Patents Inc. Method of preparing group 14 bridged biscyclopentadienyl ligands
AU2003302033A1 (en) 2002-10-15 2004-06-15 Exxonmobil Chemical Patents Inc. Multiple catalyst system for olefin polymerization and polymers produced therefrom
US7700707B2 (en) 2002-10-15 2010-04-20 Exxonmobil Chemical Patents Inc. Polyolefin adhesive compositions and articles made therefrom
US8129489B2 (en) 2004-08-16 2012-03-06 Mitsui Chemicals, Inc. Ethylene polymer and use thereof
US7795194B2 (en) 2004-11-26 2010-09-14 Mitsui Chemicals, Inc. Synthetic lubricating oil and lubricating oil composition
ATE423797T1 (en) * 2004-12-03 2009-03-15 Repsol Quimica Sa CATALYST COMPOSITIONS FOR THE POLYMERIZATION AND COPOLYMERIZATION OF ALPHA-OLEFINS
EP2215129A2 (en) * 2007-08-27 2010-08-11 Borealis Technology OY Catalysts
US8445609B2 (en) 2009-04-21 2013-05-21 Mitsui Chemicals, Inc. Method for producing olefin polymer
US20120135903A1 (en) 2010-05-11 2012-05-31 Mitsui Chemicals, Inc. Lubricating oil composition
US8796409B2 (en) 2011-10-04 2014-08-05 Exxonmobil Chemical Patents Inc. Use of temperature and ethylene partial pressure to introduce long chain branching in high density polyethylene
CN104968668B (en) 2013-02-08 2017-11-17 三井化学株式会社 Solid-like poly-aluminium silicone compositions, catalyst for olefines polymerizing, the manufacture method of the manufacture method of olefin polymer and solid-like poly-aluminium silicone compositions
WO2016159168A1 (en) 2015-03-31 2016-10-06 日本ポリエチレン株式会社 Polyethylene for pipe and coupling joint, and molded article of same
JP6651938B2 (en) 2016-03-28 2020-02-19 日本ポリエチレン株式会社 Polyethylene and its molded body

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127133A1 (en) 1981-07-09 1983-01-27 Hoechst Ag, 6000 Frankfurt METHOD FOR PRODUCING POLYOLEFINS AND THEIR COPOLYMERISATS
DE3424697C2 (en) 1984-07-05 1999-07-08 Targor Gmbh Process for the polymerization of ethylene or of mixtures of ethylene with other 1-olefins
DE3443087A1 (en) * 1984-11-27 1986-05-28 Hoechst Ag, 6230 Frankfurt METHOD FOR PRODUCING POLYOLEFINES
CA1268754A (en) 1985-06-21 1990-05-08 Howard Curtis Welborn, Jr. Supported polymerization catalyst
EP0260999A1 (en) * 1986-09-19 1988-03-23 Exxon Chemical Patents Inc. High pressure, high temperature polymerization of ethylene
DE3640924A1 (en) * 1986-11-29 1988-06-01 Hoechst Ag 1-OLEFIN STEREOBLOCK POLYMER AND METHOD FOR THE PRODUCTION THEREOF
JP2538588B2 (en) 1987-04-03 1996-09-25 三井石油化学工業株式会社 Method for producing solid catalyst for olefin polymerization
JP2538595B2 (en) 1987-05-13 1996-09-25 三井石油化学工業株式会社 Solid catalyst for olefin polymerization
DE3726067A1 (en) * 1987-08-06 1989-02-16 Hoechst Ag METHOD FOR PRODUCING 1-OLEFIN POLYMERS
IT1221653B (en) * 1987-11-27 1990-07-12 Ausimonti Spa PROPYLENE CRYSTALLINE COPOLYMERS
DE3743321A1 (en) * 1987-12-21 1989-06-29 Hoechst Ag 1-OLEFIN POLYMER WAX AND METHOD FOR THE PRODUCTION THEREOF
US4871705A (en) * 1988-06-16 1989-10-03 Exxon Chemical Patents Inc. Process for production of a high molecular weight ethylene a-olefin elastomer with a metallocene alumoxane catalyst
DE3825814A1 (en) * 1988-07-29 1990-02-01 Hoechst Ag METHOD FOR PRODUCING L-OLEFIN POLYMERS
DE3826075A1 (en) * 1988-07-30 1990-02-01 Hoechst Ag 1-OLEFIN ISO BLOCK POLYMER AND METHOD FOR THE PRODUCTION THEREOF
KR100204435B1 (en) * 1989-10-30 1999-06-15 에.드케젤, 지.세.드뜨레 Process for producing syndiotactic copolymers of propylene and olefin

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5350817A (en) * 1991-05-27 1994-09-27 Hoechst Ag Process for the preparation of polyolefins having a broad molecular weight distribution
US5714427A (en) * 1991-05-27 1998-02-03 Hoechst Aktiengesellschaft Catalyst system comprising two zirconocenes and aluminoxane
US5710224A (en) * 1991-07-23 1998-01-20 Phillips Petroleum Company Method for producing polymer of ethylene
US5504232A (en) * 1992-08-03 1996-04-02 Hoechst Aktiengesellschaft Process for the preparation of an olefin polymer using specific metallocenes
US5763542A (en) * 1992-08-03 1998-06-09 Targor Gmbh Process for the preparation of an olefin polymer using specific metallocenes
US6087292A (en) * 1992-08-03 2000-07-11 Tangor Gmbh Metallocene catalysts comprising indenyl ligands substituted with electronegative groups
US5360921A (en) * 1993-03-22 1994-11-01 Mitsui Petrochemical Industries, Ltd. Process for preparing cyclopentadienyl group-containing silicon compound or cyclopentadienyl group-containing germanium compound
US5696045A (en) * 1993-09-29 1997-12-09 Winter; Andreas Process for the preparation of polyolefins
US5700886A (en) * 1993-09-29 1997-12-23 Hoechst Aktiengesellschaft Process for the preparation of polyolefins
US6150481A (en) * 1993-09-29 2000-11-21 Targor Gmbh Process for the preparation of polyolefins
US5962359A (en) * 1994-12-28 1999-10-05 Targor Gmbh Metallocene compound and its use as catalyst component
US6114556A (en) * 1994-12-28 2000-09-05 Targor Gmbh Metallocene compound and its use as catalyst component
US5852143A (en) * 1995-05-16 1998-12-22 Union Carbide Chemicals & Plastics Technology Corporation Production of polyethylene using stereoisomeric metallocenes
WO1999002569A1 (en) * 1997-07-14 1999-01-21 The Board Of Trustees Of The Leland Stanford, Jr. University CATALYSTS AND PROCESSES FOR THE SYNTHESIS OF ALTERNATING ETHYLENE/α-OLEFIN COPOLYMERS, AND ISOTACTIC COPOLYMERS THEREOF
US6218488B1 (en) 1998-03-04 2001-04-17 Exxon Mobil Chemical Patents Inc. Polymerization process for olefin copolymers using bridged hafnocene compounds
US6262202B1 (en) 1998-03-04 2001-07-17 Univation Technologies, Llc Noncoordinating anions for olefin polymerization
US6291609B1 (en) 1998-03-04 2001-09-18 Exxonmobil Chemical Patents Inc. High temperature olefin polymerization process
WO1999055748A1 (en) * 1998-04-27 1999-11-04 Fina Research S.A. Polyolefin production
US6818585B2 (en) 1998-12-30 2004-11-16 Univation Technologies, Llc Catalyst compounds, catalyst systems thereof and their use in a polymerization process
US7446073B2 (en) 1998-12-30 2008-11-04 Exxonmobil Chemical Patents Inc. Catalyst compounds, catalyst systems thereof and their use in a polymerization process
US8822611B2 (en) 2004-11-19 2014-09-02 Total Research & Technology Feluy Solid state properties of polyethylene prepared with tetrahydroindenyl-based catalyst system

Also Published As

Publication number Publication date
ES2116263T3 (en) 1998-07-16
DE3916555A1 (en) 1990-11-22
JP2904301B2 (en) 1999-06-14
AU5577190A (en) 1991-01-10
AU630451B2 (en) 1992-10-29
EP0700937A2 (en) 1996-03-13
EP0399348B1 (en) 1998-05-20
EP0399348A2 (en) 1990-11-28
ES2144089T3 (en) 2000-06-01
DE59010898D1 (en) 2000-03-23
EP0399348A3 (en) 1992-08-12
CA2017190C (en) 2001-01-30
EP0700937A3 (en) 1997-02-19
JPH0321607A (en) 1991-01-30
ZA903831B (en) 1991-02-27
DE59010821D1 (en) 1998-06-25
EP0700937B1 (en) 2000-02-16

Similar Documents

Publication Publication Date Title
CA2017190A1 (en) Process for the preparation of ethylene polymers
EP0746574B1 (en) Polymerization catalyst systems, their production and use
AU685870B2 (en) Supported olefin polymerization catalyst, its preparation and use
CA2176623A1 (en) Production of Polyethylene Using Stereoisomeric Metallocenes
CA2197848A1 (en) Supported metallocene-alumoxane catalysts for the preparation of polyethylene having a broad monomodal molecular weight distribution
CA2146208A1 (en) Polymerisation process
CA2163467A1 (en) Process for Preparing an in Situ Polyethylene Blend
CA2138723A1 (en) Metallocenes, and their use as catalysts
CA2036141A1 (en) Olefin polymerization solid catalysts and process for the polymerization of olefins
EP0374695A3 (en) Ethylene-propylene copolymer
CA2193410A1 (en) Polymerization catalyst systems, their production and use
CA2069995A1 (en) Olefin polymerization solid catalyst, olefin polymerization catalyst and olefin polymerization
CA2173515A1 (en) Catalysts
WO2003000755A3 (en) Olefin polymerisation catalyst and methods for preparing the same
EP0516019A3 (en) Process for preparing syndiotactic polyolefins with large molecular weight distribution
AU648847B2 (en) Metallocenes having bicyclic cyclopentadiene derivatives as ligands, processes for their preparation and their use as catalysts
CA2143587A1 (en) High Activity Ethylene Selective Metallocenes
CA2039627A1 (en) Gas phase olefin polymerization process
CA2229608A1 (en) Substituted indenyl containing metal complexes and olefin polymerization process
FR2688421B1 (en) PROCESS FOR THE MANUFACTURE OF LOW DISPERSITY MICROSPHEROUIDAL POWDER, LOW DISPERSITY MICROSPHEROUIDAL POWDER THUS OBTAINED, CATALYSTS FOR THE POLYMERIZATION OF ALPHA-OLEFINS AND POLYMERIZATION PROCESS OF ALPHA-OLEFINS.
CA2163681A1 (en) Supported monocyclopentadienyl zirconium catalyst
CA2067525A1 (en) Organometallic fluorenyl compounds, preparation and use
CA2095173A1 (en) Ethylene Copolymerization Process
Takahashi Process for producing ethylene copolymers
Hirakawa Process for Polymerizing Olefins

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry