NO990546L - 3-heteroatom substituted cyclopentadienyl-containing metal complexes and olefin polymerization process - Google Patents
3-heteroatom substituted cyclopentadienyl-containing metal complexes and olefin polymerization processInfo
- Publication number
- NO990546L NO990546L NO990546A NO990546A NO990546L NO 990546 L NO990546 L NO 990546L NO 990546 A NO990546 A NO 990546A NO 990546 A NO990546 A NO 990546A NO 990546 L NO990546 L NO 990546L
- Authority
- NO
- Norway
- Prior art keywords
- metal complexes
- heteroatom
- olefin polymerization
- substituted cyclopentadienyl
- polymerization process
- Prior art date
Links
- 239000002184 metal Substances 0.000 title abstract 5
- 150000001336 alkenes Chemical class 0.000 title abstract 2
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 title abstract 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 title abstract 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title abstract 2
- 238000006116 polymerization reaction Methods 0.000 title 1
- 239000003446 ligand Substances 0.000 abstract 3
- 239000003054 catalyst Substances 0.000 abstract 2
- 229920006158 high molecular weight polymer Polymers 0.000 abstract 1
- 125000003454 indenyl group Chemical class C1(C=CC2=CC=CC=C12)* 0.000 abstract 1
- 239000002685 polymerization catalyst Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F17/00—Metallocenes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/10—Compounds having one or more C—Si linkages containing nitrogen having a Si-N linkage
-
- 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
-
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- 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
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65908—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
-
- 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
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
-
- 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
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65916—Component covered by group C08F4/64 containing a transition metal-carbon bond supported on a carrier, e.g. silica, MgCl2, polymer
-
- 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
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Denne oppfinnelse angår heteroatom-substituerte cyklopentadienyl-holdige ligan- der, metallkomplekser inneholdende disse ligander, samt katalysatorsystemer fremstilt ut fra katalysatorkomponenter omfattende disse metallkomplekser. Metallkompleksene inne- holder en heteroatom-Cp-binding eller en ring-heteroatom-Cp-binding i 2-stillingen på Cp. I foretrukne metallkomplekser er liganden en 2-heteroatom-substituert indenylgruppe. Ka- talysatorsystemene for olefinpolymerisering kan anvendes ved høye temperaturer, er meget aktive og gir polymer med høy molekylvekt.This invention relates to heteroatom-substituted cyclopentadienyl-containing ligands, metal complexes containing these ligands, as well as catalyst systems prepared from catalyst components comprising these metal complexes. The metal complexes contain a heteroatom-Cp bond or a ring heteroatom-Cp bond at the 2-position of Cp. In preferred metal complexes, the ligand is a 2-heteroatom-substituted indenyl group. The olefin polymerization catalyst systems can be used at high temperatures, are very active and provide high molecular weight polymer.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2376896P | 1996-08-08 | 1996-08-08 | |
PCT/US1997/013171 WO1998006728A1 (en) | 1996-08-08 | 1997-07-28 | 2-heteroatom substituted cyclopentadienyl-containing metal complexes and olefin polymerization process |
Publications (2)
Publication Number | Publication Date |
---|---|
NO990546D0 NO990546D0 (en) | 1999-02-05 |
NO990546L true NO990546L (en) | 1999-03-29 |
Family
ID=21817090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO990546A NO990546L (en) | 1996-08-08 | 1999-02-05 | 3-heteroatom substituted cyclopentadienyl-containing metal complexes and olefin polymerization process |
Country Status (21)
Country | Link |
---|---|
EP (1) | EP1021454A1 (en) |
JP (1) | JP2000516608A (en) |
KR (1) | KR20000029853A (en) |
CN (1) | CN1231668A (en) |
AR (1) | AR009034A1 (en) |
AU (1) | AU716659B2 (en) |
BR (1) | BR9711115A (en) |
CA (1) | CA2262377A1 (en) |
CO (1) | CO4870709A1 (en) |
CZ (1) | CZ42499A3 (en) |
HU (1) | HUP9904148A3 (en) |
ID (1) | ID18005A (en) |
NO (1) | NO990546L (en) |
NZ (1) | NZ333877A (en) |
PL (1) | PL331526A1 (en) |
RU (1) | RU2196776C2 (en) |
SA (1) | SA97180735B1 (en) |
SK (1) | SK15299A3 (en) |
TR (1) | TR199900589T2 (en) |
WO (1) | WO1998006728A1 (en) |
ZA (2) | ZA976999B (en) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI971565A (en) * | 1997-04-14 | 1998-10-15 | Borealis As | Substituted metallocene compounds for catalyst systems intended for polymerization of olefins, intermediates and processes for their preparation |
DE19809159A1 (en) | 1998-03-04 | 1999-09-09 | Bayer Ag | Organometallic compounds |
US6326493B1 (en) * | 1999-01-25 | 2001-12-04 | Chisso Corporation | Metallocene compounds, processes for the preparation thereof, catalyst components for olefin polymerization, and processes for the production of olefin polymers |
US6617407B1 (en) | 1999-04-29 | 2003-09-09 | The Dow Chemical Company | Bis(n,n-dihydrocarbylamino)-substituted cyclopentadienes and metal complexes thereof |
DE60001557T2 (en) | 1999-05-13 | 2004-01-08 | Dow Global Technologies, Inc., Midland | METAL COMPLEXES WITH HETEROATOM-CONTAINING BRIDGE FOR OLEFIN POLYMERIZATION PROCESSES |
JP2002544282A (en) | 1999-05-13 | 2002-12-24 | ザ ダウ ケミカル カンパニー | Di- and tri-heteroatom-substituted indenyl metal complexes |
EP1194431B1 (en) | 1999-06-04 | 2005-06-22 | Dow Global Technologies Inc. | Boron-substituted cyclopentadienes and metal complexes thereof |
US6825295B2 (en) | 1999-12-10 | 2004-11-30 | Dow Global Technologies Inc. | Alkaryl-substituted group 4 metal complexes, catalysts and olefin polymerization process |
EP1253158A1 (en) * | 1999-12-10 | 2002-10-30 | Dow Global Technologies Inc. | Substituted group 4 metal complexes, catalysts and olefin polymerization process |
WO2001042315A1 (en) * | 1999-12-10 | 2001-06-14 | Dow Global Technologies Inc. | Substituted group 4 metal complexes, catalysts and olefin polymerization process |
KR100675053B1 (en) | 2000-01-18 | 2007-01-26 | 바셀 테크놀로지 캄파니 비이브이 | Process for producing substantially amorphous propylene-based polymers |
WO2001053362A1 (en) * | 2000-01-19 | 2001-07-26 | Borealis Technology Oy | Metallocene catalysts comprising monocyclic siloxy substituted cyclopentadienyl group(s) for the polymerisation of olefins |
GB0001232D0 (en) * | 2000-01-19 | 2000-03-08 | Borealis Polymers Oy | Polymerisation catalysts |
JP4062929B2 (en) | 2002-02-08 | 2008-03-19 | 住友化学株式会社 | Transition metal complex, ligand, catalyst for olefin polymerization, and method for producing olefin polymer |
KR20100101024A (en) * | 2002-03-14 | 2010-09-15 | 다우 글로벌 테크놀로지스 인크. | Substituted indenyl metal complexes |
US6927264B2 (en) | 2003-05-28 | 2005-08-09 | Dow Global Technologies Inc. | Metal complexes and polymerization process using same |
MY158186A (en) | 2009-07-28 | 2016-09-15 | Univation Tech Llc | Polymerization process using a supported constrained geometry catalyst |
CN103249755A (en) * | 2010-09-15 | 2013-08-14 | 株式会社日本触媒 | Composition usable as heat-atent polymerization initiator |
CN102101897B (en) * | 2010-12-24 | 2013-02-06 | 上海化工研究院 | Heterocyclic-side-chain-containing metallocene catalyst and application thereof in olefinic polymerization |
US9382361B2 (en) | 2014-03-21 | 2016-07-05 | Exxonmobil Chemical Patents Inc. | Process to produce ethylene propylene copolymers |
US10773246B2 (en) | 2015-01-06 | 2020-09-15 | Scg Chemicals Co., Ltd. | SiO2-layered double hydroxide microspheres and methods of making them |
KR102010630B1 (en) * | 2016-01-20 | 2019-08-13 | 한화토탈 주식회사 | Catalyst for olefin polymerization and olefin polymerization method thereof |
GB201608384D0 (en) | 2016-05-12 | 2016-06-29 | Scg Chemicals Co Ltd | Unsymmetrical metallocene catalysts and uses thereof |
WO2018175073A1 (en) * | 2017-03-23 | 2018-09-27 | Exxonmobil Chemical Patents Inc. | Catalyst systems and methods for preparing and using the same |
KR102643986B1 (en) | 2017-09-29 | 2024-03-07 | 사빅 에스케이 넥슬렌 컴퍼니 피티이 엘티디 | A novel indene-based transition metal complexes, catalysts composition containing the same, and methods for preparing ethylene homopolymers or copolymers of ethylene and α-olefins using the same |
KR20200105409A (en) | 2019-02-28 | 2020-09-07 | 사빅 에스케이 넥슬렌 컴퍼니 피티이 엘티디 | Novel tetraaryl borate compounds, catalysts composition containing the same, and methods for preparing ethylene homopolymers or copolymers of ethylene and α-olefins using the same |
WO2020174346A1 (en) | 2019-02-28 | 2020-09-03 | 사빅 에스케이 넥슬렌 컴퍼니 피티이 엘티디 | NOVEL TETRAARYLBORATE COMPOUND, CATALYST COMPOSITION COMPRISING SAME, AND METHOD FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND α-OLEFIN BY USING SAME |
EP3865522A4 (en) | 2019-09-27 | 2022-05-18 | LG Chem, Ltd. | Polyethylene, and chlorinated polyethylene thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5096867A (en) * | 1990-06-04 | 1992-03-17 | Exxon Chemical Patents Inc. | Monocyclopentadienyl transition metal olefin polymerization catalysts |
NZ235032A (en) * | 1989-08-31 | 1993-04-28 | Dow Chemical Co | Constrained geometry complexes of titanium, zirconium or hafnium comprising a substituted cyclopentadiene ligand; use as olefin polymerisation catalyst component |
ATE198207T1 (en) * | 1992-08-03 | 2001-01-15 | Targor Gmbh | METHOD FOR PRODUCING AN OLEFIN POLYMER USING SPECIAL METALLOCENES |
DE4406963A1 (en) * | 1994-03-03 | 1995-09-07 | Basf Ag | Metallocene complexes with heterofunctional groups on the cyclopentadienyl system |
DE4406964A1 (en) * | 1994-03-03 | 1995-09-07 | Basf Ag | Supported metal oxide complexes with heterofunctional groups on the cyclopentadienyl system as catalyst systems |
-
1997
- 1997-07-28 WO PCT/US1997/013171 patent/WO1998006728A1/en not_active Application Discontinuation
- 1997-07-28 CA CA002262377A patent/CA2262377A1/en not_active Abandoned
- 1997-07-28 NZ NZ333877A patent/NZ333877A/en unknown
- 1997-07-28 BR BR9711115A patent/BR9711115A/en not_active IP Right Cessation
- 1997-07-28 JP JP10509760A patent/JP2000516608A/en active Pending
- 1997-07-28 HU HU9904148A patent/HUP9904148A3/en unknown
- 1997-07-28 RU RU99104650/04A patent/RU2196776C2/en not_active IP Right Cessation
- 1997-07-28 CN CN97198208A patent/CN1231668A/en active Pending
- 1997-07-28 KR KR1019997001015A patent/KR20000029853A/en not_active Application Discontinuation
- 1997-07-28 AU AU39647/97A patent/AU716659B2/en not_active Ceased
- 1997-07-28 CZ CZ99424A patent/CZ42499A3/en unknown
- 1997-07-28 PL PL97331526A patent/PL331526A1/en unknown
- 1997-07-28 TR TR1999/00589T patent/TR199900589T2/en unknown
- 1997-07-28 SK SK152-99A patent/SK15299A3/en not_active Application Discontinuation
- 1997-07-28 EP EP97937033A patent/EP1021454A1/en not_active Withdrawn
- 1997-08-06 ZA ZA976999A patent/ZA976999B/en unknown
- 1997-08-06 ZA ZA976998A patent/ZA976998B/en unknown
- 1997-08-07 ID IDP972749A patent/ID18005A/en unknown
- 1997-08-08 AR ARP970103616A patent/AR009034A1/en not_active Application Discontinuation
- 1997-08-08 CO CO97045592A patent/CO4870709A1/en unknown
- 1997-12-24 SA SA97180735A patent/SA97180735B1/en unknown
-
1999
- 1999-02-05 NO NO990546A patent/NO990546L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ZA976999B (en) | 1999-02-08 |
NZ333877A (en) | 2000-08-25 |
JP2000516608A (en) | 2000-12-12 |
SA97180735B1 (en) | 2006-10-08 |
ZA976998B (en) | 1999-02-08 |
TR199900589T2 (en) | 1999-07-21 |
HUP9904148A3 (en) | 2003-03-28 |
KR20000029853A (en) | 2000-05-25 |
AR009034A1 (en) | 2000-03-08 |
CZ42499A3 (en) | 1999-07-14 |
AU3964797A (en) | 1998-03-06 |
WO1998006728A1 (en) | 1998-02-19 |
ID18005A (en) | 1998-02-19 |
EP1021454A1 (en) | 2000-07-26 |
PL331526A1 (en) | 1999-07-19 |
SK15299A3 (en) | 2000-03-13 |
CN1231668A (en) | 1999-10-13 |
RU2196776C2 (en) | 2003-01-20 |
HUP9904148A2 (en) | 2000-03-28 |
BR9711115A (en) | 1999-08-17 |
AU716659B2 (en) | 2000-03-02 |
CO4870709A1 (en) | 1999-12-27 |
CA2262377A1 (en) | 1998-02-19 |
NO990546D0 (en) | 1999-02-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO990546L (en) | 3-heteroatom substituted cyclopentadienyl-containing metal complexes and olefin polymerization process | |
MY132554A (en) | 3-heteroatom substituted cyclopentadienyl-containing metal complexes and olefin polymerization process. | |
AU589986B2 (en) | Polymerisation of olefins using a ziegler-natta catalyst and two organometallic compounds | |
NO971843L (en) | Catalyst mixture, as well as the process of polymerizing an olefin | |
ES2188000T3 (en) | CATALYST THAT HAS A CETIMIDE LINK. | |
FI951780A0 (en) | Process for the preparation of catalyst components | |
ATE353333T1 (en) | METALLOCENE | |
NO970629L (en) | Carrier Olefin Polymerization Catalyst | |
NO951025L (en) | Metallocenes and process for polymerization of olefin | |
MXPA01003978A (en) | Bridged metallocenes for olefin copolymerization. | |
AR010401A1 (en) | NEW HOMOGENEOUS COMPOSITION CATALYST OF OLEPHINE POLYMERIZATION, PROCESS FOR ITS PREPARATION, METHOD FOR POLYMERIZING OLEPHINE AND USE OF CATALYSTS IN SUCH COMPOSITION AND METHOD | |
NO991190L (en) | polymerisation | |
ATE207085T1 (en) | POLYMERIZATION CATALYST SYSTEM, PRODUCTION AND USE THEREOF | |
EP0704461A3 (en) | Olefin polymerization catalyst and process for olefin polymerization | |
ATE277092T1 (en) | CATALYST COMPONENT FOR OLEFIN POLYMERIZATION AND CATALYST SYSTEM AND POLYMERIZATION PROCESS USING SUCH A CATALYST SYSTEM | |
AU6352686A (en) | Polymerisation of olefins using modified ziegler-natta catalyst | |
DE69802529T2 (en) | olefin | |
BR9602817A (en) | Stereo-rigid metallocene compound catalyst process for preparing a polyolefin using such a compound and polyolefin | |
GB9714181D0 (en) | Polymerisation catalyst |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |