ZA826746B - Use of dialkylzinc compounds to initiate polymerization of ethylene with chromium oxide catalysts - Google Patents

Use of dialkylzinc compounds to initiate polymerization of ethylene with chromium oxide catalysts

Info

Publication number
ZA826746B
ZA826746B ZA826746A ZA826746A ZA826746B ZA 826746 B ZA826746 B ZA 826746B ZA 826746 A ZA826746 A ZA 826746A ZA 826746 A ZA826746 A ZA 826746A ZA 826746 B ZA826746 B ZA 826746B
Authority
ZA
South Africa
Prior art keywords
ethylene
chromium oxide
initiate polymerization
oxide catalysts
dialkylzinc compounds
Prior art date
Application number
ZA826746A
Other languages
English (en)
Inventor
Reginald Walter Geck
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 ZA826746B publication Critical patent/ZA826746B/xx

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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/04—Monomers containing three or four carbon atoms
    • C08F10/08—Butenes
    • C08F10/10—Isobutene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
ZA826746A 1981-10-01 1982-09-14 Use of dialkylzinc compounds to initiate polymerization of ethylene with chromium oxide catalysts ZA826746B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/307,580 US4376191A (en) 1981-10-01 1981-10-01 Use of dialkylzinc compounds to initiate polymerization of ethylene with chromium oxide catalysts

Publications (1)

Publication Number Publication Date
ZA826746B true ZA826746B (en) 1983-07-27

Family

ID=23190358

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA826746A ZA826746B (en) 1981-10-01 1982-09-14 Use of dialkylzinc compounds to initiate polymerization of ethylene with chromium oxide catalysts

Country Status (6)

Country Link
US (1) US4376191A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5869212A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU550323B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1192700A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE449491B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ZA (1) ZA826746B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564660A (en) * 1983-06-30 1986-01-14 Union Carbide Corporation Use of alkylaluminum compounds and hydroxyl-containing compounds to initiate polymerization of ethylene with chromium oxide catalysts
JPS6079538U (ja) * 1983-11-08 1985-06-03 三井造船株式会社 気相流動層反応装置
FR2570381B1 (fr) * 1984-09-17 1987-05-15 Bp Chimie Sa Procede de polymerisation d'ethylene ou de copolymerisation d'ethylene et d'alpha-olefine en lit fluidise en presence de catalyseur a base d'oxyde de chrome
FR2572082B1 (fr) * 1984-10-24 1987-05-29 Bp Chimie Sa Procede de demarrage de polymerisation d'ethylene ou de copolymerisation d'ethylene et d'alpha-olefine en phase gazeuse en presence de catalyseur a base d'oxyde de chrome
US4677137A (en) * 1985-05-31 1987-06-30 Minnesota Mining And Manufacturing Company Supported photoinitiator
DE3600611A1 (de) 1986-01-11 1987-07-16 Basf Ag Einsatz von antistatika zur vermeidung von belagbildung bei der herstellung von ultrahochmolekularem polyethylen in gasphasenreaktoren
DE3833445A1 (de) * 1988-10-01 1990-04-05 Basf Ag Vermeidung von farbigen verunreinigungen bei der herstellung von ultrahochmolekularen ethylenpolymerisaten mittels eines titan enthaltenden katalysatorsystems
US5187246A (en) * 1990-06-26 1993-02-16 Union Carbide Chemicals & Plastics Technology Corporation Process for making epr resins
US5064796A (en) * 1991-01-07 1991-11-12 Exxon Chemical Patents Inc. Support adjuvant for improved vanadium polymerization catalyst
EP0562205A1 (en) * 1992-03-24 1993-09-29 Bp Chemicals S.N.C. Process for the preparation of a polymerisation catalyst
US5548040A (en) * 1994-12-20 1996-08-20 Union Carbide Chemicals & Plastics Technology Corporation Process for passivation of a reactor after shutdown of alpha olefin polymerization processes
US6255420B1 (en) 1999-11-22 2001-07-03 Union Carbide Chemicals & Plastics Technology Corporation Start-up process for gas phase production of polybutadiene
US6916892B2 (en) * 2001-12-03 2005-07-12 Fina Technology, Inc. Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene
US7985811B2 (en) * 2004-01-02 2011-07-26 Univation Technologies, Llc Method for controlling sheeting in gas phase reactors
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
US7629422B2 (en) 2004-12-21 2009-12-08 Univation Technologies, Llc Process for transitioning between Ziegler-Natta-based and chromium-based catalysts
US7053163B1 (en) 2005-02-22 2006-05-30 Fina Technology, Inc. Controlled comonomer distribution along a reactor for copolymer production
US20070027276A1 (en) * 2005-07-27 2007-02-01 Cann Kevin J Blow molding polyethylene resins
US8129484B2 (en) * 2005-07-27 2012-03-06 Univation Technologies, Llc Blow molding polyethylene resins
US7446167B2 (en) * 2006-04-13 2008-11-04 Fina Technology, Inc. Catalyst deactivation agents and methods for use of same
EP2393852B1 (en) * 2009-02-06 2013-06-19 Dow Global Technologies LLC Ethylene-based polymers and compositions, methods of making the same, and articles prepared therefrom
CN106459283B (zh) 2014-05-27 2019-05-31 Sabic环球技术有限责任公司 在不相容的催化剂之间转变的方法
US10494455B2 (en) 2014-12-22 2019-12-03 Sabic Global Technologies B.V. Process for transitioning between incompatible catalysts
US10066030B2 (en) 2014-12-22 2018-09-04 Sabic Global Technologies B.V. Recovery of hydrocarbons from a hydrocarbon recycle
CN107531841B (zh) 2015-03-24 2021-02-09 Sabic环球技术有限责任公司 用于在不相容的催化剂之间转换的方法
CN108699168B (zh) 2015-12-22 2021-04-27 Sabic环球技术有限责任公司 用于不相容催化剂之间转换的方法
CN111315838B (zh) 2017-11-28 2021-11-12 博里利斯股份公司 改善的粘合剂聚合物组合物
US10787526B2 (en) 2018-04-06 2020-09-29 Chevron Phillips Chemical Company Lp Method for startup of a gas phase polymerization reactor
US11993699B2 (en) 2018-09-14 2024-05-28 Fina Technology, Inc. Polyethylene and controlled rheology polypropylene polymer blends and methods of use
US20200263000A1 (en) 2019-02-20 2020-08-20 Fina Technology, Inc. Polymer Compositions with Low Warpage
WO2025078081A1 (en) 2023-10-09 2025-04-17 Sabic Global Technologies B.V. Process for transitioning between incompatible catalysts

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU34020A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1953-01-27 1956-02-06
US3023203A (en) * 1957-08-16 1962-02-27 Phillips Petroleum Co Polymerization process
NL137126C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1961-09-28
ES287879A1 (es) 1962-06-05 1963-11-01 Phillips Petroleum Co Un procedimiento que comprende la polimerización del etileno y su conversión en un polímero normalmente sólido
US3622521A (en) * 1967-08-21 1971-11-23 Phillips Petroleum Co Olefin polymerization with chromium and titanium-containing compounds
US4011382A (en) * 1975-03-10 1977-03-08 Union Carbide Corporation Preparation of low and medium density ethylene polymer in fluid bed reactor
US3984351A (en) * 1975-03-14 1976-10-05 National Petro Chemicals Corporation Olefin polymerization catalyst

Also Published As

Publication number Publication date
US4376191A (en) 1983-03-08
JPS5869212A (ja) 1983-04-25
CA1192700A (en) 1985-08-27
SE449491B (sv) 1987-05-04
AU550323B2 (en) 1986-03-20
SE8205562L (sv) 1983-04-02
AU8841882A (en) 1983-04-14
SE8205562D0 (sv) 1982-09-29
JPS6256166B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-11-24

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