[go: up one dir, main page]

SG11201502294RA - Transition Metal Compound, Olefin Polymerization Catalyst, And Olefin Polymer Production Process - Google Patents

Transition Metal Compound, Olefin Polymerization Catalyst, And Olefin Polymer Production Process

Info

Publication number
SG11201502294RA
SG11201502294RA SG11201502294RA SG11201502294RA SG11201502294RA SG 11201502294R A SG11201502294R A SG 11201502294RA SG 11201502294R A SG11201502294R A SG 11201502294RA SG 11201502294R A SG11201502294R A SG 11201502294RA SG 11201502294R A SG11201502294R A SG 11201502294RA
Authority
SG
Singapore
Prior art keywords
transition metal
production process
metal compound
olefin
polymerization catalyst
Prior art date
Application number
SG11201502294RA
Inventor
Munehito Funaya
Original Assignee
Mitsui Chemicals Inc
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 Mitsui Chemicals Inc filed Critical Mitsui Chemicals Inc
Publication of SG11201502294RA publication Critical patent/SG11201502294RA/en

Links

Classifications

    • 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
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/04Monomers containing three or four carbon atoms
    • C08F10/06Propene
    • 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
    • C08F110/04Monomers containing three or four carbon atoms
    • C08F110/06Propene
    • 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
    • C08F210/04Monomers containing three or four carbon atoms
    • C08F210/06Propene
    • 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
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/6592Component 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
    • 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
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/6592Component 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
    • C08F4/65922Component 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
    • C08F4/65927Component 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 bridged
    • 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
    • C08F2420/00Metallocene catalysts
    • C08F2420/09Cyclic bridge, i.e. Cp or analog where the bridging unit linking the two Cps or analogs is part of a cyclic group
    • 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
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/65912Component covered by group C08F4/64 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
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/65916Component covered by group C08F4/64 containing a transition metal-carbon bond supported on a carrier, e.g. silica, MgCl2, polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
SG11201502294RA 2012-09-25 2013-09-24 Transition Metal Compound, Olefin Polymerization Catalyst, And Olefin Polymer Production Process SG11201502294RA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012211233 2012-09-25
PCT/JP2013/075713 WO2014050816A1 (en) 2012-09-25 2013-09-24 Transition metal compound, olefin polymerization catalyst, and method for producing olefin polymer

Publications (1)

Publication Number Publication Date
SG11201502294RA true SG11201502294RA (en) 2015-05-28

Family

ID=50388215

Family Applications (2)

Application Number Title Priority Date Filing Date
SG11201502294RA SG11201502294RA (en) 2012-09-25 2013-09-24 Transition Metal Compound, Olefin Polymerization Catalyst, And Olefin Polymer Production Process
SG10201706412TA SG10201706412TA (en) 2012-09-25 2013-09-24 Transition Metal Compound, Olefin Polymerization Catalyst, And Olefin Polymer Production Process

Family Applications After (1)

Application Number Title Priority Date Filing Date
SG10201706412TA SG10201706412TA (en) 2012-09-25 2013-09-24 Transition Metal Compound, Olefin Polymerization Catalyst, And Olefin Polymer Production Process

Country Status (8)

Country Link
US (2) US9458261B2 (en)
EP (1) EP2902400B1 (en)
JP (2) JP6033322B2 (en)
KR (1) KR101838785B1 (en)
CN (2) CN106866850B (en)
SG (2) SG11201502294RA (en)
TW (1) TWI579293B (en)
WO (1) WO2014050816A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2975069B1 (en) * 2013-03-12 2018-09-05 Mitsui Chemicals, Inc. Method for producing olefin polymer and catalyst for olefin polymerization
JP6227457B2 (en) * 2014-03-28 2017-11-08 三井化学株式会社 Fluorene compound, transition metal compound, catalyst for olefin polymerization, and method for producing olefin polymer
CN106715487B (en) * 2014-09-11 2021-02-26 三井化学株式会社 Process for producing olefin (co) polymer containing constituent unit derived from 1-butene
JP6679345B2 (en) * 2015-02-27 2020-04-15 三井化学株式会社 Process for producing olefin (co) polymer containing constitutional unit derived from 1-butene
US11028192B2 (en) * 2017-03-27 2021-06-08 Exxonmobil Chemical Patents Inc. Solution process to make ethylene copolymers
JP2019172946A (en) * 2017-05-26 2019-10-10 三井化学株式会社 Method for producing propylene-based polymer
JP2019172944A (en) * 2017-05-26 2019-10-10 三井化学株式会社 METHOD FOR PRODUCING PROPYLENE/α-OLEFIN COPOLYMER
US20210262091A1 (en) * 2018-06-13 2021-08-26 Basf Se Process for the generation of metal or semimetal-containing films
PL3921365T3 (en) * 2019-02-08 2023-07-03 Borealis Ag Nucleated propylene polymer composition with high toughness
JP7024842B2 (en) * 2020-10-16 2022-02-24 日本ポリプロ株式会社 Propene homopolymer
JP2025075105A (en) * 2022-03-30 2025-05-15 三井化学株式会社 Method for producing olefin polymer

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL276385A1 (en) 1987-01-30 1989-07-24 Exxon Chemical Patents Inc Method for polymerization of olefines,diolefins and acetylene unsaturated compounds
IL85097A (en) 1987-01-30 1992-02-16 Exxon Chemical Patents Inc Catalysts based on derivatives of a bis(cyclopentadienyl)group ivb metal compound,their preparation and their use in polymerization processes
US5155080A (en) 1988-07-15 1992-10-13 Fina Technology, Inc. Process and catalyst for producing syndiotactic polyolefins
JP2693517B2 (en) 1988-09-14 1997-12-24 三井石油化学工業株式会社 Method for producing benzene-insoluble organoaluminum oxy compound
KR930002411B1 (en) 1988-09-14 1993-03-30 미쓰이세끼유 가가꾸고오교오 가부시끼가이샤 Benzene-insoluble organoalumium oxy-compounds and process for preparing same
US4960878A (en) 1988-12-02 1990-10-02 Texas Alkyls, Inc. Synthesis of methylaluminoxanes
US5041584A (en) 1988-12-02 1991-08-20 Texas Alkyls, Inc. Modified methylaluminoxane
DE3907965A1 (en) 1989-03-11 1990-09-13 Hoechst Ag METHOD FOR PRODUCING A SYNDIOTACTIC POLYOLEFIN
ATE137770T1 (en) 1989-10-10 1996-05-15 Fina Technology METALLOCENE CATALYST WITH LEWISS ACID AND ALKYL ALUMINUM
US5036034A (en) 1989-10-10 1991-07-30 Fina Technology, Inc. Catalyst for producing hemiisotactic polypropylene
US5387568A (en) 1989-10-30 1995-02-07 Fina Technology, Inc. Preparation of metallocene catalysts for polymerization of olefins
ES2071086T5 (en) 1989-10-30 2002-01-16 Fina Technology PREPARATION OF METALOCENICAL CATALYSTS FOR OLEFINE POLYMERIZATION.
EP0426638B2 (en) 1989-10-30 2005-03-02 Fina Technology, Inc. Addition of aluminium alkyl for improved metallocene catalyst
JP2545006B2 (en) 1990-07-03 1996-10-16 ザ ダウ ケミカル カンパニー Addition polymerization catalyst
JP2929746B2 (en) 1991-02-25 1999-08-03 東亞合成株式会社 Method for producing low molecular weight (meth) acrylate polymer
US5416228A (en) 1991-10-07 1995-05-16 Fina Technology, Inc. Process and catalyst for producing isotactic polyolefins
DE59308494D1 (en) 1992-08-03 1998-06-10 Targor Gmbh Process for the preparation of an olefin polymer using metallocenes with specially substituted indenyl ligands
EP1070729B1 (en) 1993-06-07 2011-09-28 Mitsui Chemicals, Inc. Transition metal compound, olefin polymerization catalyst component comprising said compound, olefin polymerization catalyst containing said component, process for olefin polymerization using said catalyst, propylene homopolymer, propylene copolymer and propylene elastomer
JP3432020B2 (en) 1993-11-29 2003-07-28 三井化学株式会社 Propylene homopolymer and propylene copolymer
EP0786466B1 (en) 1996-01-25 2003-04-16 Tosoh Corporation Olefin polymerisation process which comprises a transition metal catalyst.
JP3978798B2 (en) 1996-01-25 2007-09-19 東ソー株式会社 Transition metal compound, olefin polymerization catalyst comprising the same, and method for producing olefin polymer using the same
JP3181920B2 (en) * 1996-04-22 2001-07-03 日本ポリオレフィン株式会社 Catalyst for producing polyolefin and method for producing polyolefin
TW396215B (en) 1996-11-29 2000-07-01 Chisso Corp Fiber and products made of such fiber
EP0881236A1 (en) 1997-05-26 1998-12-02 Fina Research S.A. Metallocene catalyst component for use in producing isotactic polyolefins
DE19739946A1 (en) 1997-09-11 1999-03-18 Targor Gmbh Process for the production of metallocenes
DE19850898A1 (en) 1998-11-05 2000-05-11 Bayer Ag Process for the preparation of EP (D) M
JP2000219710A (en) 1999-01-29 2000-08-08 Nippon Polyolefin Kk Full stereo and regioregular polypropylene
KR100746676B1 (en) * 1999-10-08 2007-08-06 미쓰이 가가쿠 가부시키가이샤 Metallocene compound, method for producing metallocene compound, olefin polymerization catalyst, and method for producing polyolefin
WO2003082879A1 (en) 2002-03-28 2003-10-09 Albemarle Corporation Ionic aluminoxanate compositions and their use in catalysis
JP3973472B2 (en) 2002-04-03 2007-09-12 日本ポリプロ株式会社 Olefin polymerization catalyst component, olefin polymerization catalyst, and process for producing olefin polymer
JP2004051676A (en) 2002-07-16 2004-02-19 Mitsui Chemicals Inc Production method for ethylene copolymer
US7193100B2 (en) 2003-12-31 2007-03-20 Albemarle Corporation Haloaluminoxane compositions, their preparation, and their use in catalysis
ATE471952T1 (en) 2004-08-30 2010-07-15 Mitsui Chemicals Inc METHOD FOR PRODUCING PROPYLENE POLYMER
CN102127264B (en) 2004-12-22 2012-07-25 三井化学株式会社 Propylene polymer thin film and sheet
HUE048053T2 (en) 2006-05-04 2020-05-28 Grace W R & Co Aluminoxane compositions, their preparation, and their use in catalysis
US20080021156A1 (en) 2006-07-21 2008-01-24 Thierry Arpin Controlled compounding of thermoplastic polymer composition with barrier properties
EP2053086A4 (en) 2006-08-11 2010-12-22 Mitsui Chemicals Inc PROPYLENE RESIN COMPOSITION FOR PACKAGING MATERIAL
JP5260846B2 (en) * 2006-08-11 2013-08-14 三井化学株式会社 Propylene resin composition for packaging materials
EP2065152B1 (en) 2006-09-12 2017-04-05 Toyo Seikan Kaisha, Ltd. Polypropylene cup type container and molding method thereof
JP5087906B2 (en) 2006-11-14 2012-12-05 東レ株式会社 Microporous polypropylene film and method for producing the same
CA2707511C (en) 2007-12-04 2013-04-02 Mitsui Chemicals, Inc. Processes for preparing organic alkali metal compound and organic transition metal compound
JP5460025B2 (en) 2008-11-10 2014-04-02 三菱樹脂株式会社 Porous film, separator for lithium battery using the same, and battery
PL2186834T3 (en) * 2008-11-18 2011-06-30 Borealis Ag Propylene-hexene random copolymer produced in the presence of a metallocene catalyst
EP2383300B1 (en) * 2009-01-27 2016-10-12 Mitsui Chemicals, Inc. Propylene homopolymer for condensers
US8258354B2 (en) 2010-06-08 2012-09-04 E. I. Du Pont De Nemours And Company Producing short chain perfluoroalkyl iodides
US9458257B2 (en) 2012-09-25 2016-10-04 Mitsui Chemicals, Inc. Process for producing olefin polymer and olefin polymer

Also Published As

Publication number Publication date
CN104662030B (en) 2017-05-17
JP6563884B2 (en) 2019-08-21
CN104662030A (en) 2015-05-27
US20150252123A1 (en) 2015-09-10
US9458261B2 (en) 2016-10-04
EP2902400B1 (en) 2020-11-04
TWI579293B (en) 2017-04-21
SG10201706412TA (en) 2017-09-28
JP2017014532A (en) 2017-01-19
CN106866850A (en) 2017-06-20
US20160304640A1 (en) 2016-10-20
WO2014050816A1 (en) 2014-04-03
US9796799B2 (en) 2017-10-24
CN106866850B (en) 2020-07-03
JP6033322B2 (en) 2016-11-30
KR101838785B1 (en) 2018-03-14
EP2902400A4 (en) 2016-06-08
KR20150048891A (en) 2015-05-07
JPWO2014050816A1 (en) 2016-08-22
TW201425324A (en) 2014-07-01
EP2902400A1 (en) 2015-08-05

Similar Documents

Publication Publication Date Title
SG11201506224UA (en) Solid polyaluminoxane composition, olefin polymerization catalyst, olefin polymer production method and solid polyaluminoxane composition production method
SG11201502294RA (en) Transition Metal Compound, Olefin Polymerization Catalyst, And Olefin Polymer Production Process
EP2902419A4 (en) Method for producing olefin polymer, and olefin polymer
SG11201505069VA (en) A polymerization process for producing ethylene based polymers
SG11201505073SA (en) A polymerization process for producing ethylene based polymers
SG10201702989VA (en) Process for polymerizing an olefin monomer and catalyst therefor
SG11201408147TA (en) Method for producing solid catalyst component for use in polymerization of olefin, catalyst for use in polymerization of olefin, and method for producing olefin polymer
SG11201400371UA (en) Solid catalyst component for polymerization of olefin, catalyst for polymerization of olefin, and method for producing olefin polymer
SG11201501883UA (en) Production method for solid catalyst component for polymerizing olefins, catalyst for polymerizing olefins, and production method for polymerized olefins
SG11201503581PA (en) Catalyst systems for olefin polymerization
SG11201406929RA (en) Process for producing olefin polymer
WO2012134613A3 (en) Pyridyldiamido transition metal complexes, production and use thereof
ZA201503545B (en) High performance ziegler-natta catalyst systems, process for producing such mgcl2 based catalysts and use thereof
SG11201504686RA (en) Polyethylene production with multiple polymerization reactors
SG11201501885VA (en) Solid catalyst component for polymerization of olefins, catalyst for polymerization of olefins, and method for producing olefin polymer
SG11201503615YA (en) A hydrotreating catalyst, production and use thereof
SG11201501881YA (en) Solid catalyst component for polymerizing olefins, catalyst for polymerizing olefins, and production method for polymerized olefins
SG11201504287WA (en) Method for producing methacrylic polymer composition, and molded article
EP2751147A4 (en) Polymerization of 2,3,3,3-tetrafluoropropene and polymers formed from 2,3,3,3-tetrafluoropropene
SG11201502386PA (en) Polymerization process
SG10201706793VA (en) Production method for solid catalyst component for polymerizing olefins, catalyst for polymerizing olefins, and production method for polymerized olefins
SG11201507471PA (en) Production method of olefin polymer and olefin polymerization catalyst
EP2900698A4 (en) Process for producing polymers
SG10201704103QA (en) Polyolefin production with multiple polymerization reactors
SG11201404288QA (en) Catalyst composition for polymerizing conjugated diene monomer