IN2012DN06460A - - Google Patents

Info

Publication number
IN2012DN06460A
IN2012DN06460A IN6460DEN2012A IN2012DN06460A IN 2012DN06460 A IN2012DN06460 A IN 2012DN06460A IN 6460DEN2012 A IN6460DEN2012 A IN 6460DEN2012A IN 2012DN06460 A IN2012DN06460 A IN 2012DN06460A
Authority
IN
India
Prior art keywords
catalyst
formula
group
activating compound
polymer
Prior art date
Application number
Other languages
English (en)
Inventor
Peter Jozef Hubert Windmuller
Gerardus Henricus Josephus Van Doremaele
Original Assignee
Dsm Ip Assets Bv
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
Application filed by Dsm Ip Assets Bv filed Critical Dsm Ip Assets Bv
Publication of IN2012DN06460A publication Critical patent/IN2012DN06460A/en

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
    • 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
    • C08F210/18—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT 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
    • 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
    • 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
    • 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
    • C08F2420/00—Metallocene catalysts
    • C08F2420/02—Cp or analog bridged to a non-Cp X anionic donor
    • 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
    • C08F2420/00—Metallocene catalysts
    • C08F2420/04—Cp or analog not bridged to a non-Cp X ancillary anionic donor
    • 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
    • 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
    • Y10S526/943—Polymerization with metallocene catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
IN6460DEN2012 2003-07-09 2004-06-29 IN2012DN06460A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NLPCT/NL03/00503 2003-07-09
PCT/NL2004/000458 WO2005005496A2 (en) 2003-07-09 2004-06-29 Process for the production of a polymer comprising monomeric units of ethylene, an a-olefin and a vinyl norbornene

Publications (1)

Publication Number Publication Date
IN2012DN06460A true IN2012DN06460A (enrdf_load_stackoverflow) 2015-10-09

Family

ID=34056976

Family Applications (1)

Application Number Title Priority Date Filing Date
IN6460DEN2012 IN2012DN06460A (enrdf_load_stackoverflow) 2003-07-09 2004-06-29

Country Status (7)

Country Link
US (2) US7829645B2 (enrdf_load_stackoverflow)
EP (3) EP3112385B1 (enrdf_load_stackoverflow)
JP (2) JP5086637B2 (enrdf_load_stackoverflow)
KR (1) KR20060054293A (enrdf_load_stackoverflow)
CN (1) CN100528915C (enrdf_load_stackoverflow)
IN (1) IN2012DN06460A (enrdf_load_stackoverflow)
WO (1) WO2005005496A2 (enrdf_load_stackoverflow)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5086637B2 (ja) * 2003-07-09 2012-11-28 ランクセス エラストマーズ ビー．ブイ． エチレン、α−オレフィン、およびビニルノルボルネンのモノマー単位を含むポリマーの製造方法
JP2007063409A (ja) * 2005-08-31 2007-03-15 Asahi Kasei Chemicals Corp 環状オレフィン系共重合体の製造方法
GB0610667D0 (en) * 2006-05-30 2006-07-05 Nova Chem Int Sa Supported polymerization catalysts
JP5397816B2 (ja) * 2007-02-08 2014-01-22 ランクセス エラストマーズ ビー．ブイ． エラストマー組成物の調製方法
WO2008148499A1 (en) * 2007-06-06 2008-12-11 Dsm Ip Assets B.V. Imine catalyst
DE102007057854A1 (de) * 2007-11-28 2009-06-04 Philipps-Universität Marburg Cyclopentadienylphosphazen-Komplexe (CpPN-Komplexe) von Metallen der 3. und 4. Gruppe und der Lanthanoide
EP2336204A1 (en) * 2009-12-21 2011-06-22 DSM IP Assets B.V. Borane activated ti catalyst system comprising amidine and diene ligand
EP2336205A1 (en) * 2009-12-21 2011-06-22 DSM IP Assets B.V. TI catalyst system comprising substituted cyclopentadienyl, amidine and diene ligand
BR112012020718A2 (pt) * 2010-02-19 2016-04-26 Dow Global Technologies Inc complexo de metal-ligante e catalisador
DE102013205996A1 (de) * 2013-04-04 2014-10-09 Achim Methling Josef Ranftl GbR (vertretungsberechtigte Gesellschafter: Achim Methling, A-1110 Wien, Josef Ranftl, 82256 Fürstenfeldbruck) Verfahren zum Abbau von synthetischen Polymeren und eine Vorrichtung zu dessen Durchführung
EP2818513B1 (en) * 2013-06-25 2015-12-23 Lanxess Elastomers B.V. Oil extended ethylene-alpha-olefin-non-conjugated diene copolymer
JP2015532361A (ja) 2013-06-28 2015-11-09 エルジー・ケム・リミテッド ジエンを含む三元系弾性共重合体およびその製造方法
KR101585206B1 (ko) 2013-07-22 2016-01-13 주식회사 엘지화학 디엔을 포함하는 3원계 탄성 공중합체 및 이의 제조 방법
CN104797610A (zh) 2013-06-28 2015-07-22 株式会社Lg化学 弹性二烯三元共聚物及其制备方法
US9493593B2 (en) 2013-06-28 2016-11-15 Lg Chem, Ltd. Elastic diene terpolymer and preparation method thereof
KR101585204B1 (ko) 2013-06-28 2016-01-13 주식회사 엘지화학 디엔을 포함하는 3원계 탄성 공중합체 및 이의 제조 방법
EP2835381A1 (en) 2013-08-09 2015-02-11 Lanxess Elastomers B.V. Functionalized olefinic copolymers
US10131726B2 (en) 2014-02-14 2018-11-20 Mitsui Chemicals, Inc. Ethylene/α-olefin/non-conjugated polyene copolymer, and production process and use thereof
KR101791810B1 (ko) 2014-03-21 2017-10-30 엑손모빌 케미칼 패턴츠 인코포레이티드 에틸렌 프로필렌 공중합체의 제조 방법
JP6358852B2 (ja) * 2014-05-23 2018-07-18 ポリプラスチックス株式会社 環状オレフィン共重合体の製造方法
US9441063B2 (en) * 2014-10-09 2016-09-13 Chevron Phillips Chemical Company Lp Titanium phosphinimide and titanium iminoimidazolidide catalyst systems with activator-supports
US10800865B2 (en) 2015-09-14 2020-10-13 Exxonmobil Chemical Patents Inc. Process for making branched EPDM and the EPDM therefrom
CN108191910B (zh) * 2016-12-08 2020-11-10 中国石油化工股份有限公司 单茂金属化合物及制备方法和烯烃聚合用催化剂组合物及应用和制备丙烯均聚物的方法
CN108864348B (zh) * 2017-05-15 2021-02-05 中国石油化工股份有限公司 一种乙烯-α烯烃-非共轭二烯烃聚合物及其制备方法
EP3409697A1 (en) 2017-05-28 2018-12-05 SABIC Global Technologies B.V. Preparation of polymer dispersions
US11041034B2 (en) 2018-02-09 2021-06-22 Exxonmobil Chemical Patents Inc. Ethylene-a-olefin-diene elastomers and methods of making them
WO2019180802A1 (ja) 2018-03-20 2019-09-26 三井化学株式会社 エチレン・α－オレフィン・非共役ポリエン共重合体、その製造方法および用途
WO2020069362A1 (en) 2018-09-28 2020-04-02 Dow Global Technologies Llc Process of polymerizing tetra-functional long-chain branched polyolefin resins
JP7125569B2 (ja) * 2020-06-29 2022-08-24 ポリプラスチックス株式会社 環状オレフィン共重合体の製造方法、及びノルボルネン単量体とエチレンとの共重合用の触媒組成物
JP7726977B2 (ja) * 2020-07-17 2025-08-20 ダウ グローバル テクノロジーズ エルエルシー 拘束幾何プロ触媒のためのヒドロカルビル変性メチルアルミノキサン助触媒
DE112022005556T5 (de) * 2021-12-23 2024-09-19 Daicel Corporation Verfahren zur Herstellung eines zyklischen Olefincopolymers und Katalysatorzusammensetzung
CN115043965B (zh) * 2022-07-27 2023-04-21 中国科学技术大学 含有膦亚胺配体骨架的单茂金属催化剂及其制备方法和应用

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5229478A (en) * 1988-06-16 1993-07-20 Exxon Chemical Patents Inc. Process for production of high molecular weight EPDM elastomers using a metallocene-alumoxane catalyst system
KR900009719A (ko) 1988-12-16 1990-07-05 엠. 데이비드 레오나이드 신규 에틸렌-프로필렌 공중합체
US5064802A (en) * 1989-09-14 1991-11-12 The Dow Chemical Company Metal complex compounds
JP2673206B2 (ja) * 1990-06-06 1997-11-05 フジオーゼックス株式会社 スクリューコンベヤに対する丸棒状素材供給装置
US5491207A (en) * 1993-12-14 1996-02-13 Exxon Chemical Patents Inc. Process of producing high molecular weight ethylene-α-olefin elastomers with an indenyl metallocene catalyst system
DE69511352T2 (de) 1994-10-03 2000-03-30 Sumitomo Chemical Co., Ltd. Verfahren zur Herstellung eines Copolymerkautschuks
TW300246B (enrdf_load_stackoverflow) 1995-04-11 1997-03-11 Mitsui Petroleum Chemicals Ind
US5696213A (en) * 1995-04-21 1997-12-09 Exxon Chemical Patents Inc. Ethylene-α-olefin-diolefin elastomers solution polymerization process
AU6244596A (en) 1995-06-29 1997-01-30 Dsm N.V. Elastomeric copolymer
JPH09241326A (ja) * 1996-03-04 1997-09-16 Sumitomo Chem Co Ltd エチレン−α−オレフィン共重合体及びその製造方法
US6225426B1 (en) 1996-04-10 2001-05-01 Uniroyal Chemical Company, Inc. Process for producing polyolefin elastomer employing a metallocene catalyst
US5965756A (en) 1996-12-19 1999-10-12 The Dow Chemical Company Fused ring substituted indenyl metal complexes and polymerization process
WO1998049212A1 (en) 1997-04-30 1998-11-05 The Dow Chemical Company Ethylene/alpha-olefin/diene interpolymers and their preparation
CA2206944C (en) 1997-05-30 2006-08-29 Douglas W. Stephan High temperature solution polymerization process
EP0994906B1 (en) * 1997-06-27 2002-05-29 Dsm N.V. Elastomeric copolymer and process for the preparation thereof
US6228790B1 (en) 1998-06-29 2001-05-08 Industrial Technology Research Institute Dinuclear metallocene catalyst for preparing high molecular weight olefin polymer
CA2245375C (en) * 1998-08-19 2006-08-15 Nova Chemicals Ltd. Dual reactor polyethylene process using a phosphinimine catalyst
GB9909724D0 (en) * 1998-09-25 1999-06-23 Macgregor Keith M Medical cleaning compositions
US6225427B1 (en) 1998-10-15 2001-05-01 Uniroyal Chemical Company, Inc. Olefin polymerization process employing metallocene catalyst provided by cocatalyst activation of a metallocene procatalyst
CA2254512C (en) 1998-11-25 2008-02-12 Nova Chemicals Ltd. Slurry polymerization process using an unsupported phosphinimine catalyst
CN1367801A (zh) 1999-05-14 2002-09-04 杜邦唐弹性体公司 高度结晶的无规乙烯/α－烯烃/多烯烃共聚体
US6207773B1 (en) * 1999-07-28 2001-03-27 Industrial Technology Research Institute Metallocene catalyst for preparing olefin polymer
US6369176B1 (en) 1999-08-19 2002-04-09 Dupont Dow Elastomers Llc Process for preparing in a single reactor polymer blends having a broad molecular weight distribution
CA2311068C (en) 2000-06-08 2010-03-09 Nova Chemicals Corporation Process to prepare ethylene propylene elastomer
JP2002020414A (ja) 2000-07-11 2002-01-23 Ube Ind Ltd 脂肪族オレフィン重合用触媒及びそれを用いた重合方法
EP1195391A1 (en) 2000-10-05 2002-04-10 ATOFINA Research Production of polypropylene
US6583082B2 (en) * 2000-12-01 2003-06-24 The Governors Of The University Of Alberta Functional organic particles for catalyst supports
NL1016799C2 (nl) 2000-12-05 2002-06-06 Dsm Nv Polymeersamenstelling, werkwijze voor de bereiding van de polymeersamenstelling en vormdelen hiervan.
JP4197949B2 (ja) 2001-03-05 2008-12-17 スティヒティング ダッチ ポリマー インスティテュート オレフィン重合触媒成分及び触媒システム、並びにそのような触媒システムを用いた重合プロセス
ATE432951T1 (de) * 2002-06-19 2009-06-15 Exxonmobil Chem Patents Inc Verfahren zur polymerisation von ethylen, höheren alpha-olefin-comonomeren und dienen, insbesondere vinyl norbornen und nach diesem verfahren hergestellte polymere
JP5086637B2 (ja) * 2003-07-09 2012-11-28 ランクセス エラストマーズ ビー．ブイ． エチレン、α−オレフィン、およびビニルノルボルネンのモノマー単位を含むポリマーの製造方法

Also Published As

Publication number Publication date
EP1641847A2 (en) 2006-04-05
JP2012046764A (ja) 2012-03-08
US7829645B2 (en) 2010-11-09
EP2261269B1 (en) 2016-11-09
CN1839164A (zh) 2006-09-27
US20060205900A1 (en) 2006-09-14
KR20060054293A (ko) 2006-05-22
EP3112385B1 (en) 2020-01-08
WO2005005496A3 (en) 2005-12-01
US20110021732A1 (en) 2011-01-27
US8124707B2 (en) 2012-02-28
JP5086637B2 (ja) 2012-11-28
WO2005005496A2 (en) 2005-01-20
EP3112385A1 (en) 2017-01-04
CN100528915C (zh) 2009-08-19
EP2261269A3 (en) 2011-03-30
JP5829479B2 (ja) 2015-12-09
JP2007521371A (ja) 2007-08-02
EP2261269A2 (en) 2010-12-15

Similar Documents

Publication Publication Date Title
IN2012DN06460A (enrdf_load_stackoverflow)
WO2001047635A3 (de) Geträgertes katalysatorsystem enthaltend ein metallocen, eine lewis-base und eine elementorganische verbindung der iii. hauptgruppe, sowie dessen verwendung
AU2003293320A1 (en) Catalyst systems for ethylene oligomerisation to linear alpha olefins
RU95112455A (ru) Инденильные соединения, компонент катализатора для полимеризации олефинов, способ полимеризации олефинов, полиолефин
WO2005058916A3 (en) Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and preparation of polyolefins
CA2295215A1 (en) Catalyst for the production of olefin polymers
ZA986801B (en) Chemical compound.
WO2004005360A3 (en) Catalyst system for the polymerization of olefins
AU2003260432A1 (en) Process for the copolymerization of ethylene
NZ511274A (en) 2-alkyl-4-(2,6-dialkylphenyl) indenes
IT1298616B1 (it) Complesso metallocenico pontato per la (co) polimerizzazione delle olefine
WO2003014166A1 (en) Process for producing polymer
EP2048170A3 (en) Second catalyst component for addition polymerization, catalyst for addition polymerization, and process for producing addition polymer
AU2003211480A1 (en) Transition metal complexes, ligands, polymerization catalysts for olefins, and process for production of olefin polymers
WO2004033510A3 (en) Process for the copolymerization of ethylene
EP0970974A4 (en) METHOD FOR PRODUCING OLEFIN POLYMERS
WO2002024714A1 (fr) Composes de metaux de transition, catalyseurs de polymerisation d'olefines, polymeres d'olefines et procede de production associe
TW200708531A (en) Fluorene derivative, transition metal compound, olefin polymerization catalyst and process for producing olefin polymer
RU94040906A (ru) Каталитическая система, способ полимеризации альфа -олефиновых мономеров, полимерный композитный порошок
EP1586589A4 (en) OLEFIN POLYMERIZATION CATALYSTS AND METHODS FOR PRODUCING OLEFIN POLYMER
WO2002012154A3 (de) Katalysatorsystem zur polymerisation von olefinen
AU2003270902A1 (en) Bis-chelating ligand and use thereof in carbonylation processes
AU2003240728A1 (en) Transition metal compounds their preparation and their use in catalyst systems for the polymerization and copolymerization of olefins
IT1273615B (it) Catalizzatore a migliorata attivita' per la (co)polimerizzazione dell'etilene
DE60141578D1 (de) Katalysatorzusammensetzung für Olefinpolymerisation, Verfahren zur Herstellung von Polyolefinen damit