DK0435332T3 - Fast katalysatorkomponent til olefinpolymerisation og fremgangsmåde til polymerisation af olefin under anvendelse deraf - Google Patents

Fast katalysatorkomponent til olefinpolymerisation og fremgangsmåde til polymerisation af olefin under anvendelse deraf

Info

Publication number
DK0435332T3
DK0435332T3 DK90125706.3T DK90125706T DK0435332T3 DK 0435332 T3 DK0435332 T3 DK 0435332T3 DK 90125706 T DK90125706 T DK 90125706T DK 0435332 T3 DK0435332 T3 DK 0435332T3
Authority
DK
Denmark
Prior art keywords
olefin
olefin polymerization
catalyst component
catalyst
solid catalyst
Prior art date
Application number
DK90125706.3T
Other languages
Danish (da)
English (en)
Inventor
Mamoru Kioka
Masao Nakano
Takashi Ueda
Original Assignee
Mitsui Petrochemical Ind
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=18341422&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0435332(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsui Petrochemical Ind filed Critical Mitsui Petrochemical Ind
Application granted granted Critical
Publication of DK0435332T3 publication Critical patent/DK0435332T3/da

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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
    • C08F4/00—Polymerisation catalysts
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
DK90125706.3T 1989-12-29 1990-12-28 Fast katalysatorkomponent til olefinpolymerisation og fremgangsmåde til polymerisation af olefin under anvendelse deraf DK0435332T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1340909A JP2940684B2 (ja) 1989-12-29 1989-12-29 オレフィン重合用固体状触媒成分およびこの触媒成分を用いたオレフィンの重合方法

Publications (1)

Publication Number Publication Date
DK0435332T3 true DK0435332T3 (da) 1997-05-12

Family

ID=18341422

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90125706.3T DK0435332T3 (da) 1989-12-29 1990-12-28 Fast katalysatorkomponent til olefinpolymerisation og fremgangsmåde til polymerisation af olefin under anvendelse deraf

Country Status (16)

Country Link
US (1) US5153158A (fr)
EP (1) EP0435332B2 (fr)
JP (1) JP2940684B2 (fr)
KR (1) KR940010963B1 (fr)
CN (2) CN1038685C (fr)
AT (1) ATE151782T1 (fr)
CA (1) CA2033404C (fr)
CZ (1) CZ283582B6 (fr)
DE (2) DE69030489T3 (fr)
DK (1) DK0435332T3 (fr)
ES (1) ES2031800T3 (fr)
GR (2) GR920300075T1 (fr)
MY (1) MY105326A (fr)
PL (3) PL167899B1 (fr)
RU (1) RU2092495C1 (fr)
TW (1) TW201763B (fr)

Families Citing this family (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU648534B2 (en) * 1989-12-28 1994-04-28 Idemitsu Petrochemical Co., Ltd. Carrier for olefin polymerization catalyst and process for producing olefins
IT1246614B (it) 1991-06-03 1994-11-24 Himont Inc Procedimento per la polimerizzazione in fase gas delle olefine
US5939348A (en) * 1991-11-06 1999-08-17 Mobil Oil Corporation Catalyst for the manufacture of polythylene with a narrow molecular weight distribution
US5470812A (en) * 1991-11-06 1995-11-28 Mobil Oil Corporation High activity polyethylene catalysts prepared with alkoxysilane reagents
US6291384B1 (en) 1991-11-06 2001-09-18 Mobil Oil Corporation High activity catalyst prepared with alkoxysilanes
FR2689133A1 (fr) * 1992-03-27 1993-10-01 Atochem Elf Sa Catalyseur de polymérisation des oléfines, son procédé d'obtention.
US5308818A (en) * 1992-06-08 1994-05-03 Fina Technology, Inc. Catalyst system for the polymerization of olefins
JP3156213B2 (ja) * 1993-02-23 2001-04-16 日石三菱株式会社 ポリオレフィンの製造方法
US5376743A (en) * 1993-03-11 1994-12-27 Union Carbide Chemicals & Plastics Technology Corporation Process for the production of sticky polymers
US5518973A (en) * 1993-10-15 1996-05-21 Exxon Chemical Patents Inc. Titanium trichloride catalyst system for polymerizing olefins
EP0729478B1 (fr) * 1993-11-18 1999-01-07 Mobil Oil Corporation Composition de catalyseur pour la copolymerisation de l'ethylene
TW412546B (en) * 1994-05-19 2000-11-21 Mitsui Petrochemical Ind Solid titanium catalyst component for olefin polymerization, process for preparation of the same, olefin polymerization catalyst and process for olefin polymerization
US6034189A (en) * 1994-05-19 2000-03-07 Mitsui Petrochemical Industries, Ltd. Solid titanium catalyst component for olefin polymerization, process for preparation of the same, olefin polymerization catalyst and process for olefin polymerization
IT1275867B1 (it) * 1995-03-07 1997-10-24 Enichem Elastomers Procedimento per l'ottenimento di copolimeri elastomerici etilene- propilene ad alta purezza e distribuzione dei pesi molecolari
US5849655A (en) * 1996-12-20 1998-12-15 Fina Technology, Inc. Polyolefin catalyst for polymerization of propylene and a method of making and using thereof
US5948720A (en) * 1997-01-07 1999-09-07 Huntsman Polymers Corporation Catalyst for the production of flexible polyolefin compositions, methods for making and using same, and products thereof
US6100351A (en) * 1997-01-07 2000-08-08 Huntsman Polymers Corporation Olefin polymerization process and products thereof
US6930071B2 (en) * 1997-01-28 2005-08-16 Fina Technology, Inc. Ziegler-natta catalyst for polyolefins
US6864207B2 (en) * 1997-01-28 2005-03-08 Fina Technology, Inc. Ziegler-Natta catalyst for polyolefins
US6080818A (en) * 1997-03-24 2000-06-27 Huntsman Polymers Corporation Polyolefin blends used for non-woven applications
KR100528310B1 (ko) * 1998-03-23 2005-11-15 바셀 테크놀로지 캄파니 비이브이 올레핀 중합용 예비중합된 촉매 성분
EP1094083A3 (fr) * 1999-10-19 2001-12-12 Idemitsu Petrochemical Co., Ltd. Catalyseur pour la polymérisation d'oléfines, méthode de production de polymère d'oléfine, et polymère d'oléfine
US6358372B1 (en) 2000-07-11 2002-03-19 Union Carbide Chemicals & Plastics Technology Corporation Method of reducing formation of precipitates in solvent recovery system
US6825146B2 (en) * 2001-05-29 2004-11-30 Union Carbide Chemicals & Plastics Technology Corporation Olefin polymerization catalyst compositions and method of preparation
CN100564400C (zh) 2001-05-29 2009-12-02 联合碳化化学及塑料技术有限责任公司 烯烃聚合催化剂组合物和制备方法
TWI268939B (en) * 2001-12-12 2006-12-21 Basell Poliolefine Spa Process for the polymerization of olefins
KR100530795B1 (ko) * 2001-12-26 2005-11-23 삼성토탈 주식회사 에틸렌 중합 및 공중합 방법
CN1169845C (zh) * 2002-02-07 2004-10-06 中国石油化工股份有限公司 用于烯烃聚合的固体催化剂组分和含该催化剂组分的催化剂及其应用
US7141635B2 (en) * 2002-06-14 2006-11-28 Union Carbide Chemicals And Plastics Tech Catalyst composition and polymerization process using mixtures of selectivity control agents
EP1548035A4 (fr) * 2002-09-11 2006-08-09 Japan Polypropylene Corp Catalyseur de polymerisation pour (a)-olefines et procede de production de polymeres d'(a)-olefines
CA2524761A1 (fr) * 2003-05-12 2005-02-10 Union Carbide Chemicals & Plastics Technology Corporation Procede de regulation des fines de polymeres dans une polymerisation en phase gazeuse
KR101167538B1 (ko) * 2003-05-29 2012-07-20 바셀 폴리올레핀 이탈리아 에스.알.엘 촉매 성분의 제조 방법 및 그로부터 수득된 성분들
DE602004024994D1 (de) * 2003-06-24 2010-02-25 Union Carbide Chem Plastic Katalysatorzusammensetzung und Polymerisationsverfahren mit einer Mischung von Silane Elektrondonoren
CN1845940A (zh) * 2003-08-29 2006-10-11 陶氏环球技术公司 用于制造部分干燥的易分散的烯烃聚合前催化剂的方法
JP2007505983A (ja) * 2003-09-23 2007-03-15 ユニオン・カーバイド・ケミカルズ・アンド・プラスティックス・テクノロジー・コーポレイション 混合された選択性制御剤を有する触媒組成物、及びプロピレン重合方法
KR101109270B1 (ko) 2003-09-23 2012-01-30 다우 글로벌 테크놀로지스 엘엘씨 디카르복실산 에스테르 내부 공여체를 갖는 자가 제한 촉매조성물 및 프로필렌 중합 방법
US7491670B2 (en) 2003-09-23 2009-02-17 Dow Global Technologies Inc. Self limiting catalyst composition and propylene polymerization process
BRPI0413962B1 (pt) * 2003-09-23 2021-02-02 Dow Global Technologies Inc processo para a polimerização de etileno em fase gasosa
CN1856513A (zh) * 2003-09-23 2006-11-01 联合碳化化学及塑料技术公司 含有混合sca的催化剂组合物和丙烯聚合法
US7135531B2 (en) * 2004-01-28 2006-11-14 Basf Catalysts Llc Spherical catalyst for olefin polymerization
EP1735353A1 (fr) * 2004-04-07 2006-12-27 Union Carbide Chemicals & Plastics Technology Corporation Compositions de procatalyseur a polymerisation olefinique et procede de preparation
EP1765489B1 (fr) * 2004-06-16 2009-11-11 Dow Global Technologies Inc. Appareil et procede de recherche ziegler-natta
EP1761570B1 (fr) 2004-06-16 2014-06-11 Dow Global Technologies LLC Procédé permettant d'identifier des cocatalyseurs de ziegler-natta
US20060054692A1 (en) * 2004-08-09 2006-03-16 David Dickey Wireless inventory management system and method
ES2535821T3 (es) * 2004-08-09 2015-05-18 Union Carbide Chemicals & Plastics Technology Llc Procatalizador Ziegler-Natta secado por pulverización robusto y procedimiento de polimerización que utiliza el mismo
KR100640275B1 (ko) 2004-10-14 2006-11-01 대한유화공업 주식회사 에틸렌 중합 및/또는 에틸렌 공중합용 고체 촉매의 제조방법
US7776979B2 (en) * 2007-01-26 2010-08-17 Lg Chem, Ltd. Prepolymerized catalyst for olefin polymerization, process for polymerizing olefin by using the catalyst and polyolefin produced by the process
US7817819B1 (en) * 2007-04-03 2010-10-19 Nanostellar, Inc. Characterization of metal particle distributions in a supported catalyst
EP2014687B1 (fr) * 2007-06-14 2011-05-18 Borealis Technology Oy Processus de production de copolymères de propylène utilisant un catalyseur prépolymérisé
US7981517B2 (en) * 2007-08-28 2011-07-19 Dow Global Technologies Inc. Bituminous compositions and methods of making and using same
US8003741B2 (en) 2008-02-07 2011-08-23 Fina Technology, Inc. Ziegler-Natta catalyst
US7638585B2 (en) 2008-05-13 2009-12-29 Basf Catalysts, Llc Catalyst flow
US8003559B2 (en) * 2008-05-13 2011-08-23 Basf Corporation Internal donor for olefin polymerization catalysts
US8003558B2 (en) * 2008-07-29 2011-08-23 Basf Corporation Internal donor for olefin polymerization catalysts
RU2011110378A (ru) * 2008-08-19 2012-09-27 ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи (US) Классифицированная каталитическая композиция, устройство и способ
CN102164969B (zh) 2008-09-26 2015-11-25 巴塞尔聚烯烃意大利有限责任公司 烯烃聚合的催化剂组分
KR101589779B1 (ko) * 2008-11-25 2016-01-28 더블유.알. 그레이스 앤드 캄파니-콘. 실릴 에스테르를 갖는 다중 내부 공여체를 구비한 전촉매 조성물 및 방법
US8088872B2 (en) * 2008-11-25 2012-01-03 Dow Global Technologies Llc Procatalyst composition including silyl ester internal donor and method
RU2502746C2 (ru) 2008-12-31 2013-12-27 ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи Прокаталитическая композиция с замещенным 1,2-фениленовым ароматическим сложнодиэфирным внутренним донором и способ
MX2011007154A (es) 2008-12-31 2011-09-26 Dow Global Technologies Llc Copolimero de impacto de propileno y metodo.
CN101864008B (zh) * 2009-04-17 2011-11-02 中国石油化工股份有限公司 一种用于烯烃聚合反应的催化剂
US8247341B2 (en) * 2009-04-17 2012-08-21 Dow Global Technologies Llc Procatalyst composition with silyl glutarate and method
KR101745738B1 (ko) * 2009-04-23 2017-06-09 더블유.알. 그레이스 앤드 캄파니-콘. 아다만탄 함유 전촉매 조성물 및 방법
EA021841B1 (ru) 2009-11-10 2015-09-30 Тотал Ресерч Энд Текнолоджи Фелюи Бимодальный полиэтилен для использований в литье под давлением с раздувом и вытяжкой
MX2012006368A (es) * 2009-12-02 2012-09-07 Dow Global Technologies Llc Compuesto de dicarbonato puenteados por tres y cuatro atomos como donadores internos en catalizadores para la fabricacion de polipropileno.
KR101784537B1 (ko) * 2009-12-02 2017-10-11 더블유.알. 그레이스 앤드 캄파니-콘. 폴리프로필렌 제조를 위한 촉매 중 내부 공여체로서 2개의 원자로 브릿지된 디카르보네이트 화합물
BR112012019015B1 (pt) 2010-02-05 2020-01-14 Total Petrochemicals Res Feluy processo para preparação de poliolefina, e reator com reciclo
MY164913A (en) 2010-12-21 2018-02-15 Grace W R & Co Process for production of high melt flow propylene-based polymer and product from same
ES2637389T3 (es) 2011-03-04 2017-10-13 Total Research & Technology Feluy Procedimiento de preparación de mezclas de polietileno producidas con Ziegler-Natta
HUE036002T2 (hu) 2011-03-04 2018-06-28 Total Res & Technology Feluy Eljárás poliolefin keverékek elõállítására a keverékek folyamatos fizikai olvasztására és összekeverésére szolgáló készülékben
EP2751189B1 (fr) 2011-09-30 2015-09-30 Total Research & Technology Feluy Polyéthylène haute densité pour bouchons et capuchons
EP2607386A1 (fr) * 2011-12-23 2013-06-26 Basell Poliolefine Italia S.r.l. Composants de catalyseur pré-polymérisés pour la polymérisation des oléfines
EP2607387A1 (fr) 2011-12-23 2013-06-26 Basell Poliolefine Italia S.r.l. Composants de catalyseur pré-polymérisés pour la polymérisation des oléfines
WO2015022303A1 (fr) 2013-08-12 2015-02-19 Total Research & Technology Feluy Polyéthylène pour applications d'injection-soufflage avec bi-étirage
PT3074464T (pt) 2014-07-10 2017-07-03 Total Res & Technology Feluy Processo para a produção de composição de polietileno de alta densidade tendo uma elevada resistência à fissuração provocada pelo stress ambiental a partir de plástico pós consumidor e artigos fabricados a partir da dita composição
CN109843933A (zh) 2016-08-30 2019-06-04 格雷斯公司 用于生产聚烯烃的催化剂体系及其制备和使用方法
CN109206547B (zh) * 2017-07-03 2021-02-05 中国石化扬子石油化工有限公司 一种Ziegler－Natta型的丙烯聚合催化剂的外给电子体及包含它的催化剂
CN117015558B (zh) * 2021-04-06 2026-07-03 巴塞尔聚烯烃意大利有限公司 用于烯烃聚合的预聚合的催化剂组分

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5634709A (en) † 1979-08-31 1981-04-07 Mitsui Petrochem Ind Ltd Gas phase polymerization or copolymerization of olefin
JPS6042806B2 (ja) * 1979-12-26 1985-09-25 日石三菱株式会社 共重合体の製造方法
JPS56133303A (en) * 1980-03-22 1981-10-19 Chisso Corp Production of alpha-olefin polymer
US4410671A (en) * 1980-08-12 1983-10-18 Phillips Petroleum Company Catalyst, method of producing the catalyst, and polymerization process employing the catalyst
US4325837A (en) * 1980-08-12 1982-04-20 Phillips Petroleum Company Catalyst, method of producing the catalyst, and polymerization process employing the catalyst
US4326988A (en) * 1980-08-12 1982-04-27 Phillips Petroleum Company Catalyst, method of producing the catalyst, and polymerization process employing the catalyst
JPS5898315A (ja) * 1981-12-07 1983-06-11 Chisso Corp ポリオレフイン共重合体の粉体流動性改良法
DE3366573D1 (en) * 1982-06-24 1986-11-06 Bp Chimie Sa Process for the polymerization and copolymerization of alpha-olefins in a fluidized bed
FR2541683B1 (fr) * 1983-02-28 1986-05-09 Ato Chimie Procede pour la preparation d'un solide hydrocarbone actif utilisable pour polymeriser des olefines, et procede de synthese d'un polymere ou copolymere olefinique faisant appel audit solide hydrocarbone actif comme systeme
CA1284549C (fr) † 1986-09-26 1991-05-28 Fathi David Hussein Methode de polymerisation du propylene
EP0588277B1 (fr) † 1987-02-02 2001-05-16 Fina Technology, Inc. Procédé d'amélioration de l'efficacité d'un catalyseur prépolymérisé
FR2629461B1 (fr) * 1988-03-31 1993-05-07 Bp Chimie Sa Catalyseur de (co)polymerisation du propylene, supporte sur des particules spheriques de chlorure de magnesium et enrobe par du polypropylene, et procedes de preparation
FR2651234B1 (fr) * 1989-08-29 1993-03-12 Bp Chem Int Ltd Procede de fabrication en phase gazeuse de copolymeres du propylene a l'aide d'un systeme catalytique de haute activite.

Also Published As

Publication number Publication date
CZ283582B6 (cs) 1998-05-13
CN1052870A (zh) 1991-07-10
DE435332T1 (de) 1992-09-03
CA2033404A1 (fr) 1991-06-30
TW201763B (fr) 1993-03-11
CN1174204A (zh) 1998-02-25
KR910011920A (ko) 1991-08-07
GR920300075T1 (en) 1992-10-08
ATE151782T1 (de) 1997-05-15
PL288512A1 (en) 1991-09-09
EP0435332B2 (fr) 2005-08-10
DE69030489T3 (de) 2006-03-16
PL167905B1 (pl) 1995-12-30
EP0435332A2 (fr) 1991-07-03
US5153158A (en) 1992-10-06
MY105326A (en) 1994-09-30
CA2033404C (fr) 1995-09-05
JP2940684B2 (ja) 1999-08-25
ES2031800T3 (es) 1997-09-16
EP0435332B1 (fr) 1997-04-16
DE69030489D1 (de) 1997-05-22
DE69030489T2 (de) 1997-09-04
ES2031800T1 (es) 1993-01-01
RU2092495C1 (ru) 1997-10-10
CZ694290A3 (en) 1996-07-17
PL167913B1 (pl) 1995-12-30
PL167899B1 (pl) 1995-12-30
GR3023309T3 (en) 1997-08-29
KR940010963B1 (ko) 1994-11-21
EP0435332A3 (en) 1992-02-26
CN1038685C (zh) 1998-06-10
JPH03203908A (ja) 1991-09-05

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