FI64943C - Pao en baerare anbringad kromhaltig katalysatorblandning dess framstaellning och anvaendning foer polymerisering av alfaolefiner - Google Patents

Pao en baerare anbringad kromhaltig katalysatorblandning dess framstaellning och anvaendning foer polymerisering av alfaolefiner Download PDF

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Publication number
FI64943C
FI64943C FI772009A FI772009A FI64943C FI 64943 C FI64943 C FI 64943C FI 772009 A FI772009 A FI 772009A FI 772009 A FI772009 A FI 772009A FI 64943 C FI64943 C FI 64943C
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FI
Finland
Prior art keywords
catalyst
weight
compound
support
silica
Prior art date
Application number
FI772009A
Other languages
English (en)
Finnish (fi)
Other versions
FI772009A (it
FI64943B (fi
Inventor
Allen Noshay
Frederick John Karol
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of FI772009A publication Critical patent/FI772009A/fi
Application granted granted Critical
Publication of FI64943B publication Critical patent/FI64943B/fi
Publication of FI64943C publication Critical patent/FI64943C/fi

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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
    • C08F10/02—Ethene

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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)
  • Polymerization Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FI772009A 1976-06-29 1977-06-28 Pao en baerare anbringad kromhaltig katalysatorblandning dess framstaellning och anvaendning foer polymerisering av alfaolefiner FI64943C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/700,843 US4077904A (en) 1976-06-29 1976-06-29 Olefin polymerization process and catalyst therefor
US70084376 1976-06-29

Publications (3)

Publication Number Publication Date
FI772009A FI772009A (it) 1977-12-30
FI64943B FI64943B (fi) 1983-10-31
FI64943C true FI64943C (fi) 1984-02-10

Family

ID=24815102

Family Applications (1)

Application Number Title Priority Date Filing Date
FI772009A FI64943C (fi) 1976-06-29 1977-06-28 Pao en baerare anbringad kromhaltig katalysatorblandning dess framstaellning och anvaendning foer polymerisering av alfaolefiner

Country Status (16)

Country Link
US (2) US4077904A (it)
JP (1) JPS533985A (it)
AU (1) AU518530B2 (it)
BE (1) BE856205A (it)
BR (1) BR7704206A (it)
CA (1) CA1091645A (it)
DE (1) DE2729122C3 (it)
DK (1) DK149204C (it)
ES (2) ES460163A1 (it)
FI (1) FI64943C (it)
FR (1) FR2356455A1 (it)
GB (1) GB1583803A (it)
IT (1) IT1077540B (it)
NL (1) NL178325C (it)
NO (2) NO150399C (it)
SE (1) SE440659B (it)

Families Citing this family (110)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734928A1 (de) * 1977-08-03 1979-02-22 Basf Ag Verfahren zum herstellen eines chromoxid-traegerkatalysators zur olefin-polymerisation
US4170589A (en) * 1978-02-22 1979-10-09 Union Carbide Corporation Catalytic polymerization of ethylene with supported chromium [II] catalyst in the presence of a phenolic antioxidant
EP0094915B1 (de) * 1982-05-19 1987-01-21 Ciba-Geigy Ag Härtbare, Metallocenkomplexe enthaltende Zusammensetzungen, daraus erhältliche aktivierte Vorstufen und deren Verwendung
US4596862A (en) * 1984-12-24 1986-06-24 Phillips Petroleum Company Olefin polymerization using chromium on fluorided aluminophosphate
US5096868A (en) * 1987-10-21 1992-03-17 Mobil Oil Corporation Catalyst composition for polymerizing alpha-olefins and alpha-olefins polymerization therewith
GB8919925D0 (en) * 1989-09-04 1989-10-18 Bp Chem Int Ltd Chromium-containing complex polymerisation catalyst
GB8919924D0 (en) * 1989-09-04 1989-10-18 Bp Chem Int Ltd Chromium-containing complex polymerisation catalyst
GB8919926D0 (en) * 1989-09-04 1989-10-18 Bp Chem Int Ltd Chromium-containing complex polymerisation catalyst
US5064796A (en) * 1991-01-07 1991-11-12 Exxon Chemical Patents Inc. Support adjuvant for improved vanadium polymerization catalyst
BE1005795A3 (fr) * 1992-05-13 1994-02-01 Solvay Procede de polymerisation d'olefines et (co)polymeres a blocs derives d'au moins une olefine.
US5453471B1 (en) 1994-08-02 1999-02-09 Carbide Chemicals & Plastics T Gas phase polymerization process
US5885924A (en) 1995-06-07 1999-03-23 W. R. Grace & Co.-Conn. Halogenated supports and supported activators
DE19645939A1 (de) * 1996-11-07 1998-05-14 Buna Sow Leuna Olefinverb Gmbh Verfahren zur Herstellung von ultrahochmolekularem Polyethylen und Methode zur Aktivierung des Katalysatorträgers
US6071614A (en) * 1997-07-14 2000-06-06 3M Innovative Properties Company Microporous fluorinated silica agglomerate and method of preparing and using same
FR2769245B1 (fr) * 1997-10-02 1999-10-29 Atochem Elf Sa Support solide activateur des catalyseurs metallocenes en polymerisation des olefines, son procede de preparation, systeme catalytique et procede de polymerisation correspondants
US6300271B1 (en) 1998-05-18 2001-10-09 Phillips Petroleum Company Compositions that can produce polymers
ES2430207T3 (es) * 1998-05-18 2013-11-19 Chevron Phillips Chemical Company Lp Composición catalítica para polimerizar monómeros
US6107230A (en) * 1998-05-18 2000-08-22 Phillips Petroleum Company Compositions that can produce polymers
US6165929A (en) 1998-05-18 2000-12-26 Phillips Petroleum Company Compositions that can produce polymers
US6548442B1 (en) * 1999-12-03 2003-04-15 Phillips Petroleum Company Organometal compound catalyst
US6750302B1 (en) 1999-12-16 2004-06-15 Phillips Petroleum Company Organometal catalyst compositions
US6281306B1 (en) 1999-12-16 2001-08-28 Univation Technologies, Llc Method of polymerization
US6576583B1 (en) * 2000-02-11 2003-06-10 Phillips Petroleum Company Organometal catalyst composition
CA2357385C (en) 2001-09-17 2010-06-15 Nova Chemicals Corporation Supported phosphinimine polymerization catalyst
US7223822B2 (en) 2002-10-15 2007-05-29 Exxonmobil Chemical Patents Inc. Multiple catalyst and reactor system for olefin polymerization and polymers produced therefrom
WO2004046214A2 (en) 2002-10-15 2004-06-03 Exxonmobil Chemical Patents Inc. Multiple catalyst system for olefin polymerization and polymers produced therefrom
DE602004027473D1 (de) * 2003-03-21 2010-07-15 Dow Global Technologies Inc Verfahren zur herstellung von polyolefinen mit kontrollierter morphologie
CA2423921A1 (en) * 2003-03-28 2004-09-28 Nova Chemicals Corporation Halogenated organic particles for catalyst supports
US6953764B2 (en) 2003-05-02 2005-10-11 Dow Global Technologies Inc. High activity olefin polymerization catalyst and process
CA2539505C (en) 2003-09-23 2012-05-15 Dow Global Technologies Inc. Catalyst composition for ethylene polymerization
US20070073012A1 (en) * 2005-09-28 2007-03-29 Pannell Richard B Method for seed bed treatment before a polymerization reaction
US20050148742A1 (en) * 2004-01-02 2005-07-07 Hagerty Robert O. Method for controlling sheeting in gas phase reactors
US7985811B2 (en) * 2004-01-02 2011-07-26 Univation Technologies, Llc Method for controlling sheeting in gas phase reactors
US7193017B2 (en) * 2004-08-13 2007-03-20 Univation Technologies, Llc High strength biomodal polyethylene compositions
US7629422B2 (en) 2004-12-21 2009-12-08 Univation Technologies, Llc Process for transitioning between Ziegler-Natta-based and chromium-based catalysts
US6987152B1 (en) 2005-01-11 2006-01-17 Univation Technologies, Llc Feed purification at ambient temperature
US7312279B2 (en) * 2005-02-07 2007-12-25 Univation Technologies, Llc Polyethylene blend compositions
US7947797B2 (en) 2005-09-14 2011-05-24 Univation Technologies, Llc Method for operating a gas-phase reactor at or near maximum production rates while controlling polymer stickiness
US7714082B2 (en) * 2005-10-04 2010-05-11 Univation Technologies, Llc Gas-phase polymerization process to achieve a high particle density
US20070109911A1 (en) * 2005-11-16 2007-05-17 Neubauer Anthony C High speed and direct driven rotating equipment for polyolefin manufacturing
EP1803747A1 (en) 2005-12-30 2007-07-04 Borealis Technology Oy Surface-modified polymerization catalysts for the preparation of low-gel polyolefin films
DE102006004429A1 (de) * 2006-01-31 2007-08-02 Advanced Micro Devices, Inc., Sunnyvale Halbleiterbauelement mit einem Metallisierungsschichtstapel mit einem porösen Material mit kleinem ε mit einer erhöhten Integrität
EP3467077A1 (en) 2006-10-03 2019-04-10 Univation Technologies, LLC System for olefin polymerization
CN101274968B (zh) * 2007-03-28 2012-11-21 中国石油化工股份有限公司 一种用于生产宽分子量分布的聚乙烯的复合催化剂
US7754834B2 (en) * 2007-04-12 2010-07-13 Univation Technologies, Llc Bulk density promoting agents in a gas-phase polymerization process to achieve a bulk particle density
TW200936564A (en) * 2007-11-15 2009-09-01 Univation Tech Llc Methods for the removal of impurities from polymerization feed streams
WO2010071798A1 (en) 2008-12-18 2010-06-24 Univation Technologies, Llc Method for seed bed treatment for a polymerization reaction
WO2010080871A1 (en) 2009-01-08 2010-07-15 Univation Technologies, Llc Additive for gas phase polymerization processes
RU2527945C2 (ru) 2009-01-08 2014-09-10 Юнивейшн Текнолоджиз, Ллк Добавка для процессов полимеризации полиолефинов
US20100326017A1 (en) * 2009-06-25 2010-12-30 Darla Kindel Protective Cover
BR112012000454A2 (pt) 2009-07-09 2016-02-16 Union Carbide Chem Plastic processo de polimerização em fase gasosa para produzir polímero de polietileno, polímero de polietileno e sistema para melhorar iniciação de catalisador
WO2011011427A1 (en) 2009-07-23 2011-01-27 Univation Technologies, Llc Polymerization reaction system
WO2011078923A1 (en) 2009-12-23 2011-06-30 Univation Technologies, Llc Methods for producing catalyst systems
MY159256A (en) 2010-02-18 2016-12-30 Univation Tech Llc Methods for operating a polymerization reactor
CN102770467B (zh) 2010-02-22 2015-07-22 尤尼威蒂恩技术有限责任公司 催化剂体系和使用该催化剂体系制备聚烯烃产物的方法
MY157091A (en) 2010-04-13 2016-04-29 Univation Tech Llc Polymer blends and films made therefrom
WO2012009215A1 (en) 2010-07-16 2012-01-19 Univation Technologies, Llc Systems and methods for measuring static charge on particulates
CN103097015B (zh) 2010-07-16 2015-11-25 尤尼威蒂恩技术有限责任公司 测量反应器表面上颗粒积聚的系统与方法
WO2012015898A1 (en) 2010-07-28 2012-02-02 Univation Technologies, Llc Systems and methods for measuring velocity of a particle/fluid mixture
EP2651982B1 (en) 2010-12-17 2018-04-11 Univation Technologies, LLC Systems and methods for recovering hydrocarbons from a polyolefin purge gas product
WO2012087560A1 (en) 2010-12-22 2012-06-28 Univation Technologies, Llc Additive for polyolefin polymerization processes
CA2740755C (en) 2011-05-25 2019-01-15 Nova Chemicals Corporation Chromium catalysts for olefin polymerization
WO2013028283A1 (en) 2011-08-19 2013-02-28 Univation Technologies, Llc Catalyst systems and methods for using same to produce polyolefin products
EP2776476B1 (en) 2011-11-08 2019-03-13 Univation Technologies, LLC Methods for producing polyolefins with catalyst systems
BR112014010900B1 (pt) 2011-11-08 2020-02-18 Univation Technologies, Llc Método de preparar um sistema de catalisador, sistema catalisador e processo de polimerização
BR112014012750B1 (pt) 2011-11-30 2020-06-02 Univation Technologies, Llc Métodos e sistemas para entrega de catalisador
US8937139B2 (en) 2012-10-25 2015-01-20 Chevron Phillips Chemical Company Lp Catalyst compositions and methods of making and using same
US8895679B2 (en) 2012-10-25 2014-11-25 Chevron Phillips Chemical Company Lp Catalyst compositions and methods of making and using same
CA2886967C (en) 2012-11-01 2021-06-01 Univation Technologies, Llc Mixed compatible ziegler-natta/chromium catalysts for improved polymer products
US9410001B2 (en) 2012-11-12 2016-08-09 Univation Technologies, Llc Recycle gas cooler systems for gas-phase polymerization processes
CA2800056A1 (en) 2012-12-24 2014-06-24 Nova Chemicals Corporation Polyethylene blend compositions
WO2014106143A1 (en) 2012-12-28 2014-07-03 Univation Technologies, Llc Supported catalyst with improved flowability
ES2823768T3 (es) 2012-12-28 2021-05-10 Univation Tech Llc Métodos para integrar la producción de aluminoxano en la producción de catalizador
US8877672B2 (en) 2013-01-29 2014-11-04 Chevron Phillips Chemical Company Lp Catalyst compositions and methods of making and using same
US9034991B2 (en) 2013-01-29 2015-05-19 Chevron Phillips Chemical Company Lp Polymer compositions and methods of making and using same
WO2015088624A1 (en) 2013-12-09 2015-06-18 Univation Technologies, Llc Feeding polymerization additives to polymerization processes
CA2837591A1 (en) 2013-12-19 2015-06-19 Nova Chemicals Corporation Polyethylene composition for extrusion coating
ES2752705T3 (es) 2014-04-02 2020-04-06 Univation Tech Llc Composiciones de continuidad y método de polimerización de olefinas que las emplea
CA2870027C (en) 2014-11-07 2022-04-26 Matthew Zaki Botros Blow molding composition and process
WO2016118566A1 (en) 2015-01-21 2016-07-28 Univation Technologies, Llc Methods for gel reduction in polyolefins
EP3247548B1 (en) 2015-01-21 2021-09-01 Univation Technologies, LLC Methods for controlling polymer chain scission
CA2978925C (en) 2015-03-10 2023-08-22 Univation Technologies, Llc Spray dried catalyst compositions, methods for preparation and use in olefin polymerization processes
US10519256B2 (en) 2015-04-27 2019-12-31 Univation Technologies, Llc Supported catalyst compositions having improved flow properties and preparation thereof
CN104877051B (zh) * 2015-05-06 2018-04-13 无锡耀汇科技有限公司 一种聚烯烃催化剂
EP3294781B1 (en) 2015-05-08 2021-08-04 ExxonMobil Chemical Patents Inc. Polymerization process
WO2018048472A1 (en) 2016-09-09 2018-03-15 Exxonmobil Chemical Patents Inc. Pilot plant scale semi-condensing operation
WO2018063764A1 (en) 2016-09-27 2018-04-05 Exxonmobil Chemical Patents Inc. Polymerization process
WO2018063765A1 (en) 2016-09-27 2018-04-05 Exxonmobil Chemical Patents Inc. Polymerization process
WO2018063767A1 (en) 2016-09-27 2018-04-05 Exxonmobil Chemical Patents Inc. Polymerization process
WO2018118155A1 (en) 2016-12-20 2018-06-28 Exxonmobil Chemical Patents Inc. Polymerization process
WO2018118258A1 (en) 2016-12-20 2018-06-28 Exxonmobil Chemical Patents Inc. Methods for controlling start up conditions in polymerization processes
CA3052770C (en) 2017-02-07 2021-09-07 Exxonmobil Chemical Patents Inc. Processes for reducing the loss of catalyst activity of a ziegler-natta catalyst
WO2019118073A1 (en) 2017-12-13 2019-06-20 Exxonmobil Chemical Patents Inc. Deactivation methods for active components from gas phase polyolefin polymerization process
WO2019173030A1 (en) 2018-03-08 2019-09-12 Exxonmobil Chemical Patents Inc. Methods of preparing and monitoring a seed bed for polymerization reactor startup
US11459408B2 (en) 2018-05-02 2022-10-04 Exxonmobil Chemical Patents Inc. Methods for scale-up from a pilot plant to a larger production facility
EP3788081A1 (en) 2018-05-02 2021-03-10 ExxonMobil Chemical Patents Inc. Methods for scale-up from a pilot plant to a larger production facility
WO2020109870A2 (en) 2018-06-28 2020-06-04 Exxonmobil Chemical Patents Inc. Polyethylene compositions, wires and cables, and methods for making the same
WO2020014138A1 (en) 2018-07-09 2020-01-16 Exxonmobil Chemical Patents Inc. Polyethylene cast films and methods for making the same
US11383483B2 (en) 2018-07-26 2022-07-12 Exxonmobil Chemical Patents Inc. Multilayer foam films and methods for making the same
CN113195603B (zh) 2018-11-13 2023-05-26 埃克森美孚化学专利公司 聚乙烯膜
WO2020102380A1 (en) 2018-11-13 2020-05-22 Exxonmobil Chemical Patents Inc. Polyethylene blends and films
US11866522B2 (en) 2018-12-28 2024-01-09 Braskem S.A. Process for introducing catalyst in a polymerization process
WO2020163079A1 (en) 2019-02-06 2020-08-13 Exxonmobil Chemical Patents Inc. Films and backsheets for hygiene articles
US20230018505A1 (en) 2019-12-17 2023-01-19 Exxonmobil Chemical Patents Inc. Films Made of Polyethylene Blends for Improved Sealing Performance and Mechanical Properties
WO2021183337A1 (en) 2020-03-12 2021-09-16 Exxonmobil Chemical Patents Inc. Films made of polyethylene blends for improved bending stiffness and high md tear resistance
MX2022012093A (es) 2020-04-07 2022-10-13 Nova Chem Int Sa Polietileno de alta densidad para articulos rigidos.
WO2022020025A1 (en) 2020-07-22 2022-01-27 Exxonmobil Chemical Patents Inc. Polyolefin compositions and articles thereof
US20230406973A1 (en) 2020-12-08 2023-12-21 Exxonmobil Chemical Patents Inc. High density polyethylene compositions with long-chain branching
WO2022232760A1 (en) 2021-04-30 2022-11-03 Exxonmobil Chemical Patents Inc. Processes for transitioning between different polymerization catalysts in a polymerization reactor
WO2023081577A1 (en) 2021-11-02 2023-05-11 Exxonmobil Chemical Patents Inc. Polyethylene compositions, articles thereof, and methods thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130188A (en) * 1960-10-07 1964-04-21 Phillips Petroleum Co Catalyst and process for producing olefin polymers
US3445367A (en) * 1965-11-22 1969-05-20 Phillips Petroleum Co Catalyst and process for making olefin polymers of narrow molecular weight distribution
US3509640A (en) * 1968-09-03 1970-05-05 Gen Motors Corp Domestic dryer speed control
US3687920A (en) * 1971-01-25 1972-08-29 Union Carbide Corp Polymerization of olefins with silane modified catalyst system
US3761427A (en) * 1971-03-29 1973-09-25 Phillips Petroleum Co Olefin disproportionation catalyst and process for using same
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
US4015059A (en) * 1975-12-29 1977-03-29 Union Carbide Corporation Fused ring catalyst and ethylene polymerization process therewith

Also Published As

Publication number Publication date
DE2729122C3 (de) 1985-06-20
NO150399C (no) 1984-10-10
DE2729122B2 (de) 1981-03-12
DE2729122A1 (de) 1978-01-05
NO772285L (no) 1977-12-30
US4077904A (en) 1978-03-07
FI772009A (it) 1977-12-30
NO150399B (no) 1984-07-02
CA1091645A (en) 1980-12-16
FR2356455A1 (fr) 1978-01-27
DK287177A (da) 1977-12-30
NL178325C (nl) 1986-03-03
IT1077540B (it) 1985-05-04
DK149204B (da) 1986-03-10
NO153690B (no) 1986-01-27
BE856205A (fr) 1977-12-28
GB1583803A (en) 1981-02-04
BR7704206A (pt) 1978-05-02
NL178325B (nl) 1985-10-01
ES460163A1 (es) 1978-05-16
NO774223L (no) 1977-12-30
SE440659B (sv) 1985-08-12
AU2634977A (en) 1979-01-04
NO153690C (no) 1986-05-07
SE7707470L (sv) 1977-12-30
JPS5622444B2 (it) 1981-05-25
ES460173A1 (es) 1978-05-16
US4100337A (en) 1978-07-11
FR2356455B1 (it) 1983-12-23
NL7707148A (nl) 1978-01-02
JPS533985A (en) 1978-01-14
AU518530B2 (en) 1981-10-08
FI64943B (fi) 1983-10-31
DK149204C (da) 1986-08-04

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