JP2002540263A - ポリオレフィンの製造方法 - Google Patents

ポリオレフィンの製造方法

Info

Publication number
JP2002540263A
JP2002540263A JP2000608664A JP2000608664A JP2002540263A JP 2002540263 A JP2002540263 A JP 2002540263A JP 2000608664 A JP2000608664 A JP 2000608664A JP 2000608664 A JP2000608664 A JP 2000608664A JP 2002540263 A JP2002540263 A JP 2002540263A
Authority
JP
Japan
Prior art keywords
ether
group
olefins
polymerization
polymerization medium
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.)
Withdrawn
Application number
JP2000608664A
Other languages
English (en)
Japanese (ja)
Other versions
JP2002540263A5 (https=
Inventor
レイ フォード，ランダル
アラン ドーレイ，ケネス
ジェームズ バンダービルト，ジェフリー
ウィットフィールド，ロクサナ
ジョージ ワンダース，アラン
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.)
Eastman Chemical Co
Original Assignee
Eastman Chemical Co
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 Eastman Chemical Co filed Critical Eastman Chemical Co
Publication of JP2002540263A publication Critical patent/JP2002540263A/ja
Publication of JP2002540263A5 publication Critical patent/JP2002540263A5/ja
Withdrawn legal-status Critical Current

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
    • 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
    • C08F4/65916—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
    • 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
    • C08F4/65922—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 containing at least two cyclopentadienyl rings, fused or not
    • C08F4/65925—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 containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually non-bridged
    • 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
    • Y10S526/943—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)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
JP2000608664A 1999-03-30 1999-10-14 ポリオレフィンの製造方法 Withdrawn JP2002540263A (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US12696299P 1999-03-30 1999-03-30
US60/126,962 1999-03-30
US09/387,600 1999-08-31
US09/387,600 US6288181B1 (en) 1999-03-30 1999-08-31 Process for producing polyolefins
PCT/US1999/023897 WO2000058372A1 (en) 1999-03-30 1999-10-14 Process for producing polyolefins

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2010222301A Division JP5823678B2 (ja) 1999-03-30 2010-09-30 ポリオレフィンの製造方法

Publications (2)

Publication Number Publication Date
JP2002540263A true JP2002540263A (ja) 2002-11-26
JP2002540263A5 JP2002540263A5 (https=) 2006-11-30

Family

ID=26825201

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2000608664A Withdrawn JP2002540263A (ja) 1999-03-30 1999-10-14 ポリオレフィンの製造方法
JP2010222301A Expired - Lifetime JP5823678B2 (ja) 1999-03-30 2010-09-30 ポリオレフィンの製造方法

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2010222301A Expired - Lifetime JP5823678B2 (ja) 1999-03-30 2010-09-30 ポリオレフィンの製造方法

Country Status (9)

Country Link
US (1) US6288181B1 (https=)
EP (1) EP1171485B1 (https=)
JP (2) JP2002540263A (https=)
CN (1) CN1161387C (https=)
BR (1) BR9917239B1 (https=)
CA (1) CA2368403A1 (https=)
DE (1) DE69934258T2 (https=)
MX (1) MXPA01009835A (https=)
WO (1) WO2000058372A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022159145A (ja) * 2021-03-31 2022-10-17 三井化学株式会社 オレフィン重合体の製造方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7401525B2 (en) * 2005-03-23 2008-07-22 Honeywell International Inc. Micro-machined pressure sensor with polymer diaphragm
US8087412B2 (en) 2008-05-01 2012-01-03 Ansell Healthcare Products Llc Dip-formed synthetic polyisoprene latex articles with improved intraparticle and interparticle crosslinks
DE102013002483B4 (de) 2013-02-14 2019-02-21 Vdm Metals International Gmbh Nickel-Kobalt-Legierung
US10662269B2 (en) 2017-08-31 2020-05-26 Lifestyles Healthcare Pte. Ltd. Ziegler-Natta catalyzed polyisoprene articles

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04211406A (ja) * 1989-12-29 1992-08-03 Union Carbide Chem & Plast Co Inc 高活性バナジウム−ベースの触媒
JPH04225004A (ja) * 1990-04-11 1992-08-14 Bp Chem Internatl Ltd 気相オレフィン重合法
JPH0725925A (ja) * 1993-06-28 1995-01-27 Union Carbide Chem & Plast Technol Corp メタロセンを触媒として用いたオレフィン重合反応における活性低減のためのルイス塩基の使用
JPH08231619A (ja) * 1995-01-18 1996-09-10 Bp Chem Internatl Ltd オレフィンの重合方法
JPH0948810A (ja) * 1995-07-14 1997-02-18 China Petro Chem Corp シンジオ特異的メタロセン付加物触媒
JPH09157320A (ja) * 1995-12-05 1997-06-17 Mitsui Petrochem Ind Ltd オレフィン重合用固体触媒およびオレフィン重合用予備重合触媒
JPH10330413A (ja) * 1997-06-02 1998-12-15 Mitsui Chem Inc オレフィンの重合方法およびオレフィン気相重合における重合開始方法

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB632416I5 (https=) 1956-03-01 1976-03-09
US4003712A (en) 1970-07-29 1977-01-18 Union Carbide Corporation Fluidized bed reactor
NO136797C (no) 1970-09-25 1977-11-09 Union Carbide Corp Fremgangsm}te for polymerisering av etylen med modifisert katalysator
US4012573A (en) 1970-10-09 1977-03-15 Basf Aktiengesellschaft Method of removing heat from polymerization reactions of monomers in the gas phase
US3709853A (en) 1971-04-29 1973-01-09 Union Carbide Corp Polymerization of ethylene using supported bis-(cyclopentadienyl)chromium(ii)catalysts
US4011382A (en) 1975-03-10 1977-03-08 Union Carbide Corporation Preparation of low and medium density ethylene polymer in fluid bed reactor
US4302566A (en) 1978-03-31 1981-11-24 Union Carbide Corporation Preparation of ethylene copolymers in fluid bed reactor
US4876320A (en) * 1981-03-26 1989-10-24 Union Carbide Chemicals And Plastics Company Inc. Process for reducing sheeting during polymerization of alpha-olefins
US4792592A (en) 1981-03-26 1988-12-20 Union Carbide Corporation Process for reducing sheeting during polymerization of alpha-olefins
US4543399A (en) 1982-03-24 1985-09-24 Union Carbide Corporation Fluidized bed reaction systems
US5324800A (en) 1983-06-06 1994-06-28 Exxon Chemical Patents Inc. Process and catalyst for polyolefin density and molecular weight control
US4564647A (en) 1983-11-14 1986-01-14 Idemitsu Kosan Company Limited Process for the production of polyethylene compositions
CA1235543A (en) 1984-09-12 1988-04-19 Norio Kashiwa Process for producing propylene block copolymer
US4752597A (en) 1985-12-12 1988-06-21 Exxon Chemical Patents Inc. New polymerization catalyst
US4855370A (en) 1986-10-01 1989-08-08 Union Carbide Corporation Method for reducing sheeting during polymerization of alpha-olefins
US5026795A (en) 1987-02-24 1991-06-25 Phillips Petroleum Co Process for preventing fouling in a gas phase polymerization reactor
FR2618786B1 (fr) 1987-07-31 1989-12-01 Bp Chimie Sa Procede de polymerisation d'olefines en phase gazeuse dans un reacteur a lit fluidise
US4803251A (en) 1987-11-04 1989-02-07 Union Carbide Corporation Method for reducing sheeting during polymerization of alpha-olefins
FR2646426B2 (fr) 1988-09-13 1991-08-16 Bp Chemicals Sa Procede et appareillage de polymerisation d'alpha-olefine en phase gazeuse en presence d'un agent ralentisseur d'activite
US5227440A (en) 1989-09-13 1993-07-13 Exxon Chemical Patents Inc. Mono-Cp heteroatom containing Group IVB transition metal complexes with MAO: supported catalysts for olefin polymerization
US5064802A (en) 1989-09-14 1991-11-12 The Dow Chemical Company Metal complex compounds
FR2656315B1 (fr) 1989-12-22 1992-04-17 Bp Chemicals Snc Procede de preparation d'un catalyseur a base de zirconium supporte sur du chlorure de magnesium, et utilisation du catalyseur dans la polymerisation des olefines.
FR2656314B1 (fr) 1989-12-22 1992-04-17 Bp Chemicals Snc Catalyseur a base de zirconium supporte sur du chlorure de magnesium, procede de preparation et utilisation du catalyseur dans la polymerisation des olefines.
US5162463A (en) 1990-12-10 1992-11-10 Union Carbide Chemicals & Plastics Technology Corporation Method for producing sticky polymers
US5200477A (en) 1991-02-22 1993-04-06 Union Carbide Chemicals & Plastics Technology Corporation Process for producing sticky polymers
JP2759016B2 (ja) 1991-03-29 1998-05-28 シェブロン リサーチ アンド テクノロジー カンパニー α−オレフィンを重合する触媒系および重合方法
US5466766A (en) 1991-05-09 1995-11-14 Phillips Petroleum Company Metallocenes and processes therefor and therewith
CA2068939C (en) 1991-05-20 1996-04-09 Takashi Ueda Olefin polymerization catalyst and olefin polymerization
US5331071A (en) 1991-11-12 1994-07-19 Nippon Oil Co., Ltd. Catalyst components for polymerization of olefins
US5352749A (en) 1992-03-19 1994-10-04 Exxon Chemical Patents, Inc. Process for polymerizing monomers in fluidized beds
EP0578838A1 (en) 1992-04-29 1994-01-19 Hoechst Aktiengesellschaft Olefin polymerization catalyst, process for its preparation, and its use
US5350723A (en) 1992-05-15 1994-09-27 The Dow Chemical Company Process for preparation of monocyclopentadienyl metal complex compounds and method of use
US5194526A (en) 1992-07-30 1993-03-16 Union Carbide Chemicals & Plastics Technology Corporation Process for producing sticky polymers
JP3202349B2 (ja) 1992-09-22 2001-08-27 三菱化学株式会社 触媒組成物およびそれを用いるオレフィンの重合法
US5332706A (en) 1992-12-28 1994-07-26 Mobil Oil Corporation Process and a catalyst for preventing reactor fouling
ZA943399B (en) 1993-05-20 1995-11-17 Bp Chem Int Ltd Polymerisation process
ES2165425T3 (es) 1994-06-24 2002-03-16 Exxonmobil Chem Patents Inc Sistemas cataliticos de polimerizacion, su produccion y uso.
US5625012A (en) 1994-06-29 1997-04-29 Union Carbide Chemicals & Plastics Technology Corporation Process for reducing polymer build-up in recycle lines and heat exchangers during polymerization of alpha olefins
US5468702A (en) 1994-07-07 1995-11-21 Exxon Chemical Patents Inc. Method for making a catalyst system
US5948972A (en) 1994-12-22 1999-09-07 Kla-Tencor Corporation Dual stage instrument for scanning a specimen
JP3517471B2 (ja) 1994-12-28 2004-04-12 三井化学株式会社 環状オレフィン共重合体の製造方法
US5880241A (en) 1995-01-24 1999-03-09 E. I. Du Pont De Nemours And Company Olefin polymers
WO1998020045A1 (en) 1996-11-01 1998-05-14 Union Carbide Chemicals & Plastics Technology Corporation Reduction of fouling in olefin polymerization systems
DE19709486A1 (de) 1997-03-07 1998-09-10 Studiengesellschaft Kohle Mbh Verfahren und Katalysatoren zur stereospezifischen Polymerisation von Olefinen mit chiralen Halbsandwich-Metallocen-Katalysatoren
US5777120A (en) 1997-03-14 1998-07-07 University Of Iowa Research Foundation Cationic aluminum alkyl complexes incorporating amidinate ligands as polymerization catalysts

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04211406A (ja) * 1989-12-29 1992-08-03 Union Carbide Chem & Plast Co Inc 高活性バナジウム−ベースの触媒
JPH04225004A (ja) * 1990-04-11 1992-08-14 Bp Chem Internatl Ltd 気相オレフィン重合法
JPH0725925A (ja) * 1993-06-28 1995-01-27 Union Carbide Chem & Plast Technol Corp メタロセンを触媒として用いたオレフィン重合反応における活性低減のためのルイス塩基の使用
JPH08231619A (ja) * 1995-01-18 1996-09-10 Bp Chem Internatl Ltd オレフィンの重合方法
JPH0948810A (ja) * 1995-07-14 1997-02-18 China Petro Chem Corp シンジオ特異的メタロセン付加物触媒
JPH09157320A (ja) * 1995-12-05 1997-06-17 Mitsui Petrochem Ind Ltd オレフィン重合用固体触媒およびオレフィン重合用予備重合触媒
JPH10330413A (ja) * 1997-06-02 1998-12-15 Mitsui Chem Inc オレフィンの重合方法およびオレフィン気相重合における重合開始方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022159145A (ja) * 2021-03-31 2022-10-17 三井化学株式会社 オレフィン重合体の製造方法

Also Published As

Publication number Publication date
CN1350555A (zh) 2002-05-22
CN1161387C (zh) 2004-08-11
BR9917239A (pt) 2002-01-08
EP1171485A1 (en) 2002-01-16
DE69934258T2 (de) 2007-04-05
MXPA01009835A (es) 2002-05-06
US6288181B1 (en) 2001-09-11
EP1171485B1 (en) 2006-11-29
WO2000058372A1 (en) 2000-10-05
JP2011021200A (ja) 2011-02-03
JP5823678B2 (ja) 2015-11-25
BR9917239B1 (pt) 2010-10-19
DE69934258D1 (de) 2007-01-11
CA2368403A1 (en) 2000-10-05

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