GB1580635A - Process for preparing -olefin polymers or copolymers - Google Patents

Process for preparing -olefin polymers or copolymers Download PDF

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Publication number
GB1580635A
GB1580635A GB36398/77A GB3639877A GB1580635A GB 1580635 A GB1580635 A GB 1580635A GB 36398/77 A GB36398/77 A GB 36398/77A GB 3639877 A GB3639877 A GB 3639877A GB 1580635 A GB1580635 A GB 1580635A
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GB
United Kingdom
Prior art keywords
titanium
magnesium
polymerization
compound
mole
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.)
Expired
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GB36398/77A
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English (en)
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries Ltd
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 Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Publication of GB1580635A publication Critical patent/GB1580635A/en
Expired legal-status Critical Current

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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

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  • 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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
GB36398/77A 1976-09-02 1977-08-31 Process for preparing -olefin polymers or copolymers Expired GB1580635A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10431276A JPS5330681A (en) 1976-09-02 1976-09-02 Preparation of polyalpha-olefin

Publications (1)

Publication Number Publication Date
GB1580635A true GB1580635A (en) 1980-12-03

Family

ID=14377399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36398/77A Expired GB1580635A (en) 1976-09-02 1977-08-31 Process for preparing -olefin polymers or copolymers

Country Status (16)

Country Link
JP (1) JPS5330681A (no)
AT (1) AT350259B (no)
AU (1) AU507025B2 (no)
BE (1) BE858364A (no)
BR (1) BR7705864A (no)
CA (1) CA1085996A (no)
DE (1) DE2739608A1 (no)
ES (1) ES462046A1 (no)
FR (1) FR2363583A1 (no)
GB (1) GB1580635A (no)
IT (1) IT1085034B (no)
NL (1) NL162925C (no)
NO (1) NO151661C (no)
PT (1) PT66971B (no)
SE (1) SE438681B (no)
ZA (1) ZA775201B (no)

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922907A (ja) * 1982-06-24 1984-02-06 ベペ・シミイ・ソシエテ・アノニム α―オレフィンの重合および共重合用触媒担体及びその製造方法
EP0114391A1 (en) * 1982-12-28 1984-08-01 Sumitomo Chemical Company, Limited Flexible propylene polymer
US4487846A (en) * 1982-06-24 1984-12-11 Bp Chimie Society Anonyme Process for the preparation of catalyst supports for the polymerization of alpha-olefins and the supports obtained
US4497904A (en) * 1982-06-24 1985-02-05 Bp Chimie Societe Anonyme Catalysts for the polymerization and copolymerization of ethylene and polymerization processes using these catalysts
US4511703A (en) * 1982-06-24 1985-04-16 Bp Chimie Societe Anonyme Catalysts for the polymerization and copolymerization of propylene and polymerization processes using these catalysts
US4659792A (en) * 1983-05-11 1987-04-21 Mitsui Petrochemical Industries, Ltd. Process for production of 4-methyl-1-pentene polymer or copolymer
US4767735A (en) * 1987-02-02 1988-08-30 Cosden Technology, Inc. Catalyst pretreatment process
EP2223943A1 (en) 2009-02-25 2010-09-01 Borealis AG Multimodal polymer of propylene, composition containing the same and a process for manufacturing the same
EP2452960A1 (en) 2010-11-12 2012-05-16 Borealis AG Process for preparing propylene polymers with an ultra high melt flow rate
EP2452957A1 (en) 2010-11-12 2012-05-16 Borealis AG Improved process for producing heterophasic propylene copolymers
EP2452959A1 (en) 2010-11-12 2012-05-16 Borealis AG Process for producing propylene random copolymers and their use
WO2013092342A1 (en) 2011-12-19 2013-06-27 Borealis Ag Loop reactor providing an advanced production split control
EP2719725A1 (en) 2012-10-11 2014-04-16 Abu Dhabi Polymers Company Limited (Borouge) Nucleated polypropylene composition for containers
EP2749580A1 (en) 2012-12-28 2014-07-02 Borealis AG Process for producing copolymers of propylene
EP2796499A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Polypropylene composition with improved impact resistance for pipe applications
EP2796472A1 (en) 2013-04-22 2014-10-29 Borealis AG Two-stage process for producing polypropylene compositions
EP2796501A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Multimodal polypropylene composition for pipe applications
EP2796474A1 (en) 2013-04-22 2014-10-29 Borealis AG Multistage process for producing polypropylene compositions
EP2796502A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Propylene random copolymer composition for pipe applications
EP2796500A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Propylene random copolymer composition for pipe applications
EP2796498A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Multimodal polypropylene composition for pipe applications
EP2796473A1 (en) 2013-04-22 2014-10-29 Borealis AG Multistage process for producing low-temperature resistant polypropylene compositions
EP2853562A1 (en) 2013-09-27 2015-04-01 Borealis AG Two-stage process for producing polypropylene compositions
EP3103818A1 (en) 2015-06-12 2016-12-14 Borealis AG Method and apparatus for polymerising olefins in gas phase
US9539556B2 (en) 2014-02-28 2017-01-10 Borealis Ag Process for polymerizing olefins in a fluidized bed
EP3184166A1 (en) 2015-12-22 2017-06-28 Borealis AG A method for withdrawing agglomerates from a fluidised bed reactor
EP3184167A1 (en) 2015-12-22 2017-06-28 Borealis AG A method for returning polymer to a fluidised bed reactor
US9790290B2 (en) 2014-02-28 2017-10-17 Borealis Ag Gas phase polymerization process
EP3418310A1 (en) 2017-06-23 2018-12-26 Borealis AG Process and apparatus for removing polymer material from a gas-solids olefin polymerization reactor
EP3418309A1 (en) 2017-06-20 2018-12-26 Borealis AG A method, an arrangement and use of an arrangement of preparing polymer
EP3418308A1 (en) 2017-06-20 2018-12-26 Borealis AG A method, an arrangement and use of an arrangement for olefin polymerisation
WO2019002268A1 (en) 2017-06-27 2019-01-03 Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. POLYPROPYLENE COMPOSITION FOR THE PRODUCTION OF HIGH PRESSURE PIPES
EP3486261A1 (en) 2017-11-17 2019-05-22 Borealis AG Method for improving the cooling capacity of a gas solids olefin polymerization reactor
EP3486260A1 (en) 2017-11-17 2019-05-22 Borealis AG Method of splitting the return fluidization gas in a gas solids olefin polymerization reactor
EP3567061A1 (en) 2018-05-09 2019-11-13 Borealis AG Polypropylene pipe composition
WO2019238428A1 (en) 2018-06-14 2019-12-19 Borealis Ag Process for polymerizing olefin in a gas phase reactor with improved thermal homogeneity
WO2020025757A1 (en) 2018-08-02 2020-02-06 Borealis Ag Process for polymerizing ethylene in a multi-stage polymerization process
WO2020244834A1 (en) 2019-06-04 2020-12-10 Borealis Ag Process and reactor assembly for the enhancement of hydrodynamics in a gas-solids fluidized bed reactor
EP3868793A1 (en) 2020-02-24 2021-08-25 Borealis AG Process for producing alpha-olefin polymers in a multistage polymerization process
EP4257640A1 (en) 2022-04-04 2023-10-11 Borealis AG Pipe comprising a polypropylene composition
EP4389820A1 (en) 2022-12-21 2024-06-26 Borealis AG Polypropylene random copolymer compositions with improved impact resistance for pipe applications

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118488A (en) * 1977-03-25 1978-10-16 Nippon Oil Co Ltd Production of polyolefin
JPS53124592A (en) * 1977-04-07 1978-10-31 Nippon Oil Co Ltd Preparation of polyolefin
FR2424760A1 (fr) * 1978-05-05 1979-11-30 Charbonnages Ste Chimique Catalyseurs comprenant du magnesium et un metal de transition
JPS5534238A (en) * 1978-08-31 1980-03-10 Chisso Corp Preparation of alpha-olefin polymer
JPS588686B2 (ja) * 1978-12-01 1983-02-17 チッソ株式会社 α↓−オレフイン重合体の製造方法
JPS603324B2 (ja) * 1978-12-28 1985-01-28 三井化学株式会社 エチレン共重合体の製造方法
JPS55123607A (en) * 1979-03-14 1980-09-24 Mitsui Petrochem Ind Ltd Preparation of poly-1-butene
NL7902534A (nl) * 1979-04-01 1980-10-03 Stamicarbon Werkwijze voor het polymeriseren van alkenen-1.
JPS55135105A (en) * 1979-04-10 1980-10-21 Mitsui Petrochem Ind Ltd Titanium catalyst component for olefin polymerization
CA1128916A (en) * 1979-06-12 1982-08-03 Ronald L. Gibbs Magnesium containing support, catalyst and process for polymerizing olefins
JPS5634709A (en) * 1979-08-31 1981-04-07 Mitsui Petrochem Ind Ltd Gas phase polymerization or copolymerization of olefin
JPS5641207A (en) * 1979-09-14 1981-04-17 Idemitsu Kosan Co Ltd Preparation of polyethylene
DE3068230D1 (en) * 1979-10-12 1984-07-19 Bp Chem Int Ltd Polymerisation catalyst and process
JPS56129206A (en) * 1980-03-14 1981-10-09 Chisso Corp Production of alpha-olefin polymer
JPS56133303A (en) * 1980-03-22 1981-10-19 Chisso Corp Production of alpha-olefin polymer
JPS5774307A (en) * 1980-10-29 1982-05-10 Mitsui Petrochem Ind Ltd Polymerizing of alpha-olefin
JPS57153005A (en) * 1981-03-19 1982-09-21 Ube Ind Ltd Polymerization of alpha-olefin
US4491652A (en) * 1981-05-13 1985-01-01 Uniroyal, Inc. Sequentially prepared thermoplastic elastomer and method of preparing same
JPS58120610A (ja) * 1982-01-12 1983-07-18 Mitsui Toatsu Chem Inc 透明性を改良したポリプロピレンの製造方法
JPS59206424A (ja) * 1983-05-11 1984-11-22 Mitsui Petrochem Ind Ltd プロピレン共重合体組成物の製造方法
JPS59206407A (ja) * 1983-05-11 1984-11-22 Mitsui Petrochem Ind Ltd オレフインの重合方法
JPS60118703A (ja) * 1983-11-30 1985-06-26 Mitsui Toatsu Chem Inc プロピレンの重合方法
JPS60156704A (ja) * 1984-01-25 1985-08-16 Idemitsu Petrochem Co Ltd α−オレフインの連続重合方法
JPS6152118A (ja) * 1984-08-21 1986-03-14 三菱電機株式会社 電源装置
JPS61151208A (ja) * 1984-12-26 1986-07-09 Toa Nenryo Kogyo Kk ブテン−1の重合方法
DE3752331T2 (de) * 1987-02-02 2001-09-20 Fina Technology, Inc. Verfahren zur Verbesserung der Effektivität eines prepolymerisierten Katalysators
JPH0784488B2 (ja) * 1987-03-23 1995-09-13 出光石油化学株式会社 オレフイン重合体の製造方法
JPH0822888B2 (ja) * 1987-03-23 1996-03-06 出光石油化学株式会社 オレフイン重合体の製造方法
TW248565B (no) 1991-08-14 1995-06-01 Mitsui Petroleum Chemicals Industry Co

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2133545C2 (de) * 1970-07-08 1987-01-02 Montecatini Edison S.p.A., Mailand/Milano Propylenpolymerisate und Verfahren zu ihrer Herstellung
JPS5152487A (ja) * 1974-11-01 1976-05-10 Mitsui Toatsu Chemicals Echirenkyoojugotaino seizohoho

Cited By (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922907A (ja) * 1982-06-24 1984-02-06 ベペ・シミイ・ソシエテ・アノニム α―オレフィンの重合および共重合用触媒担体及びその製造方法
US4487846A (en) * 1982-06-24 1984-12-11 Bp Chimie Society Anonyme Process for the preparation of catalyst supports for the polymerization of alpha-olefins and the supports obtained
US4490475A (en) * 1982-06-24 1984-12-25 Bp Chimie Societe Anonyme Process for the preparation of supports based on magnesium chloride for the preparation of catalysts for the polymerization of alpha-olefins and the supports obtained
US4497904A (en) * 1982-06-24 1985-02-05 Bp Chimie Societe Anonyme Catalysts for the polymerization and copolymerization of ethylene and polymerization processes using these catalysts
US4511703A (en) * 1982-06-24 1985-04-16 Bp Chimie Societe Anonyme Catalysts for the polymerization and copolymerization of propylene and polymerization processes using these catalysts
US4673662A (en) * 1982-06-24 1987-06-16 Bp Chemicals Limited Catalysts for the polymerization and copolymerization of propylene and polymerization processes using these catalysts
EP0114391A1 (en) * 1982-12-28 1984-08-01 Sumitomo Chemical Company, Limited Flexible propylene polymer
US4659792A (en) * 1983-05-11 1987-04-21 Mitsui Petrochemical Industries, Ltd. Process for production of 4-methyl-1-pentene polymer or copolymer
US4767735A (en) * 1987-02-02 1988-08-30 Cosden Technology, Inc. Catalyst pretreatment process
WO2010097409A1 (en) 2009-02-25 2010-09-02 Borealis Ag Multimodal polymer of propylene, composition containing the same and a process for manufacturing the same
EP2223943A1 (en) 2009-02-25 2010-09-01 Borealis AG Multimodal polymer of propylene, composition containing the same and a process for manufacturing the same
EP2452960A1 (en) 2010-11-12 2012-05-16 Borealis AG Process for preparing propylene polymers with an ultra high melt flow rate
EP2452957A1 (en) 2010-11-12 2012-05-16 Borealis AG Improved process for producing heterophasic propylene copolymers
EP2452959A1 (en) 2010-11-12 2012-05-16 Borealis AG Process for producing propylene random copolymers and their use
WO2012062738A1 (en) 2010-11-12 2012-05-18 Borealis Ag Improved process for producing heterophasic propylene copolymers
WO2012062737A1 (en) 2010-11-12 2012-05-18 Borealis Ag Process for preparing propylene polymers with an ultra high melt flow rate
WO2012062733A1 (en) 2010-11-12 2012-05-18 Borealis Ag Process for producing propylene random copolymers and their use
WO2013092342A1 (en) 2011-12-19 2013-06-27 Borealis Ag Loop reactor providing an advanced production split control
EP2719725A1 (en) 2012-10-11 2014-04-16 Abu Dhabi Polymers Company Limited (Borouge) Nucleated polypropylene composition for containers
WO2014056559A1 (en) 2012-10-11 2014-04-17 Abu Dhabi Polymers Company Ltd. (Borouge) Nucleated polypropylene composition for containers
US9403926B2 (en) 2012-12-28 2016-08-02 Borealis Ag Process for producing copolymers of propylene
EP2749580A1 (en) 2012-12-28 2014-07-02 Borealis AG Process for producing copolymers of propylene
US10494464B2 (en) 2013-04-22 2019-12-03 Borealis Ag Two-stage process for producing polypropylene compositions
EP2796499A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Polypropylene composition with improved impact resistance for pipe applications
US10961376B2 (en) 2013-04-22 2021-03-30 Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. Propylene random copolymer composition for pipe applications
EP2796502A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Propylene random copolymer composition for pipe applications
US11066541B2 (en) 2013-04-22 2021-07-20 Abu Dhabi Polymers Company Limited (Borouge) Multimodal polypropylene composition for pipe applications
EP2796498A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Multimodal polypropylene composition for pipe applications
EP2796473A1 (en) 2013-04-22 2014-10-29 Borealis AG Multistage process for producing low-temperature resistant polypropylene compositions
EP2796501A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Multimodal polypropylene composition for pipe applications
WO2014173535A1 (en) 2013-04-22 2014-10-30 Borealis Ag Multistage process for producing polypropylene compositions
WO2014173531A1 (en) 2013-04-22 2014-10-30 Abu Dhabi Polymers Company Limited (Borouge) Propylene random copolymer composition for pipe applications
EP3235832A1 (en) 2013-04-22 2017-10-25 Borealis AG Polypropylene compositions
US9809666B2 (en) 2013-04-22 2017-11-07 Abu Dhabi Polymers Company Limited (Borouge) Polypropylene composition with improved impact resistance for pipe applications
EP2796474A1 (en) 2013-04-22 2014-10-29 Borealis AG Multistage process for producing polypropylene compositions
EP2796500A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Propylene random copolymer composition for pipe applications
WO2014173475A1 (en) 2013-04-22 2014-10-30 Abu Dhabi Polymers Company Limited (Borouge) Multimodal polypropylene composition for pipe applications
US9587096B2 (en) 2013-04-22 2017-03-07 Abu Dhabi Polymers Company Limited Propylene random copolymer composition for pipe applications
EP2796472A1 (en) 2013-04-22 2014-10-29 Borealis AG Two-stage process for producing polypropylene compositions
US11072699B2 (en) 2013-04-22 2021-07-27 Abu Dhabi Polymers Company Limited (Borouge) Multimodal polypropylene composition for pipe applications
US9745397B2 (en) 2013-04-22 2017-08-29 Borealis Ag Multistage process for producing low-temperature resistant polypropylene compositions
US9994656B2 (en) 2013-09-27 2018-06-12 Borealis Ag Two-stage process for producing polypropylene compositions
EP2853562A1 (en) 2013-09-27 2015-04-01 Borealis AG Two-stage process for producing polypropylene compositions
US9539556B2 (en) 2014-02-28 2017-01-10 Borealis Ag Process for polymerizing olefins in a fluidized bed
US9790290B2 (en) 2014-02-28 2017-10-17 Borealis Ag Gas phase polymerization process
WO2016198631A1 (en) 2015-06-12 2016-12-15 Borealis Ag Method and apparatus for polymerising olefins in gas phase
EP3103818A1 (en) 2015-06-12 2016-12-14 Borealis AG Method and apparatus for polymerising olefins in gas phase
EP3184166A1 (en) 2015-12-22 2017-06-28 Borealis AG A method for withdrawing agglomerates from a fluidised bed reactor
EP3184167A1 (en) 2015-12-22 2017-06-28 Borealis AG A method for returning polymer to a fluidised bed reactor
US11111324B2 (en) 2015-12-22 2021-09-07 Borealis Ag Method for withdrawing agglomerates from a fluidized bed polymerization reactor
US11220558B2 (en) 2017-06-20 2022-01-11 Borealis Ag Method, an arrangement and use of an arrangement of preparing polymer
US11208507B2 (en) 2017-06-20 2021-12-28 Borealis Ag Method, an arrangement and use of an arrangement for olefin polymerisation
WO2018234176A1 (en) 2017-06-20 2018-12-27 Borealis Ag METHOD, ARRANGEMENT AND USE OF OLEFIN POLYMERIZATION DEVICE
WO2018234175A1 (en) 2017-06-20 2018-12-27 Borealis Ag METHOD, ARRANGEMENT AND USE OF AN ARRANGEMENT FOR THE PREPARATION OF POLYMER
EP3418309A1 (en) 2017-06-20 2018-12-26 Borealis AG A method, an arrangement and use of an arrangement of preparing polymer
EP3418308A1 (en) 2017-06-20 2018-12-26 Borealis AG A method, an arrangement and use of an arrangement for olefin polymerisation
EP3418310A1 (en) 2017-06-23 2018-12-26 Borealis AG Process and apparatus for removing polymer material from a gas-solids olefin polymerization reactor
WO2018233999A1 (en) 2017-06-23 2018-12-27 Borealis Ag METHOD AND APPARATUS FOR REMOVING POLYMER MATERIAL FROM POLYMERIZATION REACTOR OF GASEOUS-SOLID OLEFINS
WO2019002268A1 (en) 2017-06-27 2019-01-03 Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. POLYPROPYLENE COMPOSITION FOR THE PRODUCTION OF HIGH PRESSURE PIPES
WO2019096556A1 (en) 2017-11-17 2019-05-23 Borealis Ag Method of splitting the return fluidization gas in a gas solids olefin polymerization reactor
US11559776B2 (en) 2017-11-17 2023-01-24 Borealis Ag Method for improving the cooling capacity of a gas solids olefin polymerization reactor
US11400429B2 (en) 2017-11-17 2022-08-02 Borealis Ag Method of splitting the return fluidization gas in a gas solids olefin polymerization reactor
WO2019096557A1 (en) 2017-11-17 2019-05-23 Borealis Ag Method for improving the cooling capacity of a gas solids olefin polymerization reactor
EP3486260A1 (en) 2017-11-17 2019-05-22 Borealis AG Method of splitting the return fluidization gas in a gas solids olefin polymerization reactor
EP3486261A1 (en) 2017-11-17 2019-05-22 Borealis AG Method for improving the cooling capacity of a gas solids olefin polymerization reactor
WO2019215108A1 (en) 2018-05-09 2019-11-14 Borealis Ag Polypropylene pipe composition
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US12018102B2 (en) 2018-06-14 2024-06-25 Borealis Ag Process for polymerizing olefin in a gas phase reactor with improved thermal homogeneity
WO2019238428A1 (en) 2018-06-14 2019-12-19 Borealis Ag Process for polymerizing olefin in a gas phase reactor with improved thermal homogeneity
US12043687B2 (en) 2018-08-02 2024-07-23 Borealis Ag Process for polymerizing ethylene in a multi-stage polymerization process
WO2020025757A1 (en) 2018-08-02 2020-02-06 Borealis Ag Process for polymerizing ethylene in a multi-stage polymerization process
WO2020244834A1 (en) 2019-06-04 2020-12-10 Borealis Ag Process and reactor assembly for the enhancement of hydrodynamics in a gas-solids fluidized bed reactor
WO2021170552A1 (en) 2020-02-24 2021-09-02 Borealis Ag Process for producing alpha-olefin polymers in a multistage polymerization process
EP3868793A1 (en) 2020-02-24 2021-08-25 Borealis AG Process for producing alpha-olefin polymers in a multistage polymerization process
EP4257640A1 (en) 2022-04-04 2023-10-11 Borealis AG Pipe comprising a polypropylene composition
WO2023194276A1 (en) 2022-04-04 2023-10-12 Borealis Ag Pipe comprising a polypropylene composition
EP4389820A1 (en) 2022-12-21 2024-06-26 Borealis AG Polypropylene random copolymer compositions with improved impact resistance for pipe applications
WO2024133678A1 (en) 2022-12-21 2024-06-27 Borealis Ag Polypropylene random copolymer compositions with improved impact resistance for pipe applications

Also Published As

Publication number Publication date
IT1085034B (it) 1985-05-28
DE2739608A1 (de) 1978-03-09
DE2739608C2 (no) 1987-08-27
PT66971A (en) 1977-09-01
NL7709699A (nl) 1978-03-06
CA1085996A (en) 1980-09-16
AU2841977A (en) 1979-03-08
ATA626277A (de) 1978-10-15
JPS5330681A (en) 1978-03-23
BE858364A (fr) 1978-03-02
NL162925B (nl) 1980-02-15
AT350259B (de) 1979-05-25
BR7705864A (pt) 1978-06-27
FR2363583B1 (no) 1979-03-23
AU507025B2 (en) 1980-01-31
JPS5745244B2 (no) 1982-09-27
SE438681B (sv) 1985-04-29
NO773035L (no) 1978-03-03
FR2363583A1 (fr) 1978-03-31
ES462046A1 (es) 1978-06-01
PT66971B (en) 1979-02-13
NO151661B (no) 1985-02-04
NO151661C (no) 1985-05-15
ZA775201B (en) 1978-07-26
NL162925C (nl) 1983-03-16
SE7709634L (sv) 1978-03-03

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Effective date: 19970830