ES2138286T3 - Polimero de etileno y procedimientos para su obtencion. - Google Patents

Polimero de etileno y procedimientos para su obtencion.

Info

Publication number
ES2138286T3
ES2138286T3 ES96201016T ES96201016T ES2138286T3 ES 2138286 T3 ES2138286 T3 ES 2138286T3 ES 96201016 T ES96201016 T ES 96201016T ES 96201016 T ES96201016 T ES 96201016T ES 2138286 T3 ES2138286 T3 ES 2138286T3
Authority
ES
Spain
Prior art keywords
ethylene polymer
reactors
polymerization
titanium
procedures
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 - Lifetime
Application number
ES96201016T
Other languages
English (en)
Inventor
Jacques Breulet
Beno T Koch
Michel Promel
Jiang Bian
Olivier Lhost
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.)
Ineos Manufacturing Belgium NV
Solvay SA
Original Assignee
Solvay Polyolefins Europe Belgium SA
Solvay SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3888953&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2138286(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Solvay Polyolefins Europe Belgium SA, Solvay SA filed Critical Solvay Polyolefins Europe Belgium SA
Application granted granted Critical
Publication of ES2138286T3 publication Critical patent/ES2138286T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/06—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
    • C08F297/08—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
    • 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
    • C08F10/02—Ethene
    • 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
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; 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
    • C08F4/60—Metals; 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
    • C08F4/62—Refractory metals or compounds thereof
    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
    • 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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene
    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • 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
    • C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
    • C08F2410/04—Dual catalyst, i.e. use of two different catalysts, where none of the catalysts is a metallocene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic 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)
  • Polymerisation Methods In General (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

POLIMERO DE ETILENO QUE PRESENTA UN COEFICIENTE DE HINCHAMIENTO (T{SUB,G}) DE AL MENOS 1,4. UNA RESISTENCIA A LA FISURA BAJO TENSION (ESCR) DE AL MENOS 55 H Y UN INDICE DE FLUIDEZ (ML{SUB,5}) DE AL MENOS 0,2G/10 MIN. PROCEDIMIENTOS DE OBTENCION DE ESTE POLIMERO DE ETILENO MEDIANTE SISTEMAS CATALITICOS DIFERENTES, EL PRIMERO A BASE DE TITANIO Y DE ZIRCONIO LLEVADO A CABO MEDIANTE POLIMERIZACION EN DOS REACTORES; EL SEGUNDO CONSTITUIDO POR UNA MEZCLA DE UN CATALIZADOR DE TITANIO Y DE UN CATALIZADOR DE TITANIO Y ZIRCONIO, LLEVADO A CABO MEDIANTE POLIMERIZACION EN DOS REACTORES; EL TERCERO A BASE DE CROMO SOBRE UN SOPORTE QUE COMPRENDE AL MENOS DOS CONSTITUYENTES ELEGIDOS ENTRE SILICE, ALUMINA Y FOSFATO DE ALUMINIO, LLEVADO A CABO MEDIANTE POLIMERIZACION EN UN SOLO O EN DOS REACTORES.
ES96201016T 1995-04-28 1996-04-16 Polimero de etileno y procedimientos para su obtencion. Expired - Lifetime ES2138286T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9500397A BE1009308A3 (fr) 1995-04-28 1995-04-28 Polymere d'ethylene et procedes pour son obtention.

Publications (1)

Publication Number Publication Date
ES2138286T3 true ES2138286T3 (es) 2000-01-01

Family

ID=3888953

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96201016T Expired - Lifetime ES2138286T3 (es) 1995-04-28 1996-04-16 Polimero de etileno y procedimientos para su obtencion.

Country Status (18)

Country Link
US (3) US6201078B1 (es)
EP (3) EP0739909B1 (es)
JP (2) JP4091667B2 (es)
KR (1) KR100430198B1 (es)
CN (1) CN1127525C (es)
AR (3) AR025116A1 (es)
AT (3) ATE183524T1 (es)
AU (1) AU697264B2 (es)
BE (1) BE1009308A3 (es)
BR (1) BR9602100A (es)
CA (1) CA2174400C (es)
CZ (1) CZ290626B6 (es)
DE (3) DE69624844T2 (es)
ES (1) ES2138286T3 (es)
HU (1) HU223095B1 (es)
NO (1) NO315325B1 (es)
RU (1) RU2164231C2 (es)
ZA (1) ZA963067B (es)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0799841A3 (fr) * 1996-04-05 1998-01-07 SOLVAY POLYOLEFINS EUROPE - BELGIUM (Société Anonyme) Polymère d'éthylène et corps creux obtenu de celui-ci
US6009317A (en) * 1997-01-17 1999-12-28 Ericsson Inc. Method and apparatus for compensating for imbalances between quadrature signals
BE1011333A3 (fr) * 1997-08-20 1999-07-06 Solvay Procede de fabrication d'une composition de polymeres d'ethylene.
DE69808577T2 (de) * 1997-09-27 2003-07-03 Atofina Res Seneffe Herstellung von Polyäthylen mit einer verbesserten Widerstandsfähigkeit gegen Risse und/oder Schlagzähigkeit
EP0905146B1 (en) * 1997-09-27 2002-10-09 ATOFINA Research Production of polyethylene having improved crack and/or impact resistance
EP0905145A1 (en) * 1997-09-27 1999-03-31 Fina Research S.A. Production of polyethylene having improved crack resistance
EP0952165A1 (en) * 1998-04-24 1999-10-27 Fina Research S.A. Production of polyethylene having improved mechanical properties
EP1041096A1 (en) * 1999-03-29 2000-10-04 Fina Research S.A. Polymerisation of ethylene
AU2002223866A1 (en) * 2000-11-27 2002-06-03 Bp Chemicals Limited Process for the continuous gas-phase (co-) polymerisation of olefins in a fluidised bed reactor
US6878454B1 (en) * 2003-12-05 2005-04-12 Univation Technologies, Llc Polyethylene films
US6982304B2 (en) * 2003-12-22 2006-01-03 Union Carbide Chemicals & Plastics Technology Corporation Blow molding resins with improved ESCR
US8202940B2 (en) * 2004-08-19 2012-06-19 Univation Technologies, Llc Bimodal polyethylene compositions for blow molding applications
US7868092B2 (en) * 2005-06-14 2011-01-11 Univation Technologies, Llc Bimodal polyethylene compositions for blow molding applications
US7432328B2 (en) * 2005-06-14 2008-10-07 Univation Technologies, Llc Enhanced ESCR bimodal HDPE for blow molding applications
US7858702B2 (en) * 2005-06-14 2010-12-28 Univation Technologies, Llc Enhanced ESCR bimodal HDPE for blow molding applications
EP1760096A1 (en) * 2005-09-05 2007-03-07 INEOS Manufacturing Belgium NV Polymer composition
US7595364B2 (en) * 2005-12-07 2009-09-29 Univation Technologies, Llc High density polyethylene
EP2744858B1 (en) * 2011-08-19 2017-03-01 Borealis AG Heterophasic system with improved surface properties
JP5230788B2 (ja) * 2011-11-24 2013-07-10 日東電工株式会社 透明導電性フィルム
BR112015008932B1 (pt) 2012-10-22 2021-03-30 Basell Polyolefine Gmbh Composição de polietileno, artigos manufaturados compreendendo a mesma e processo para sua preparação
JP6001186B2 (ja) 2012-10-22 2016-10-05 バーゼル・ポリオレフィン・ゲーエムベーハー 優れた機械的性質を有するポリエチレン組成物の製造方法
KR101950622B1 (ko) 2012-10-22 2019-02-20 바젤 폴리올레핀 게엠베하 높은 스웰비를 가진 폴리에틸렌 조성물
EP2738212A1 (en) 2012-11-28 2014-06-04 Basell Polyolefine GmbH Polyethylene composition having high mechanical properties
EP2738211A1 (en) 2012-11-28 2014-06-04 Basell Polyolefine GmbH Polyethylene composition having high swell ratio
EP2738213A1 (en) 2012-11-28 2014-06-04 Basell Polyolefine GmbH Polyethylene composition having high swell ratio
JP6039112B2 (ja) * 2013-02-27 2016-12-07 バーゼル・ポリオレフィン・ゲーエムベーハー ポリエチレン工程、およびその組成物
WO2018091261A1 (en) 2016-11-17 2018-05-24 Basell Polyolefine Gmbh Polyethylene composition having high swell ratio
EP3545008B1 (en) * 2016-11-24 2022-10-19 Basell Polyolefine GmbH Polyethylene composition for blow molding having high swell ratio and impact resistance
WO2018095701A1 (en) * 2016-11-24 2018-05-31 Basell Polyolefine Gmbh Polyethylene composition for blow molding having high stress cracking resistance
US20180333870A1 (en) 2017-05-16 2018-11-22 Garland Industries, Inc. Utility Knife
KR102261697B1 (ko) 2018-05-14 2021-06-08 바젤 폴리올레핀 게엠베하 높은 스웰비, fnct 및 충격 내성을 갖는 폴리에틸렌 조성물

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082195A (en) * 1959-10-22 1963-03-19 Standard Oil Co Polymerization process
JPS4913230B1 (es) 1970-12-15 1974-03-29
LU72278A1 (es) 1975-04-14 1977-02-03
JPS5846212B2 (ja) 1979-05-18 1983-10-14 旭化成株式会社 ポリエチレン組成物
JPS5910724B2 (ja) 1979-08-24 1984-03-10 旭化成株式会社 エチレンの連続重合法
US4310648A (en) * 1980-10-20 1982-01-12 The Dow Chemical Company Polymerization of olefins in the presence of a catalyst containing titanium and zirconium
JPS581708A (ja) * 1981-06-25 1983-01-07 Mitsubishi Chem Ind Ltd ポリオレフインの製造法
US4547551A (en) * 1982-06-22 1985-10-15 Phillips Petroleum Company Ethylene polymer blends and process for forming film
US4461873A (en) * 1982-06-22 1984-07-24 Phillips Petroleum Company Ethylene polymer blends
US4536550A (en) 1983-04-21 1985-08-20 Asahi Kasei Kogyo Kabushiki Kaisha Polyethylene composition
US4550143A (en) * 1983-06-10 1985-10-29 Idemitsu Petrochemical Co., Ltd. Composition comprising ethylene-based polymers
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
FR2577558B1 (fr) * 1985-02-19 1987-03-06 Bp Chimie Sa Polymerisation en plusieurs etapes d'alpha-olefines en phase gazeuse
US4735931A (en) * 1986-06-16 1988-04-05 Phillips Petroleum Company In situ comonomer generation in olefin polymerization
JPS63154753A (ja) * 1986-12-18 1988-06-28 Nippon Oil Co Ltd ポリエチレン系組成物
DE3723526A1 (de) 1987-07-16 1989-01-26 Hoechst Ag Verfahren zur herstellung eines polyolefins mit einer breiten molmassenverteilung
KR940008983B1 (ko) * 1988-06-23 1994-09-28 도오소오 가부시끼가이샤 폴리에틸렌의 제조방법
US5149738A (en) * 1988-11-16 1992-09-22 Union Carbide Chemicals & Plastics Technology Corporation Process for the in situ blending of polymers
JPH0565373A (ja) * 1991-09-06 1993-03-19 Nippon Petrochem Co Ltd ポリエチレン組成物
AU2901792A (en) * 1991-11-04 1993-06-07 Chevron Research And Technology Company Olefin polymerization using an aluminoxane/chromium 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.
JP3264333B2 (ja) * 1992-05-28 2002-03-11 出光興産株式会社 エチレン系重合体組成物の製造方法
US5364915A (en) * 1992-09-25 1994-11-15 Phillips Petroleum Company Ethylene polymerization process
EP0602508B1 (de) 1992-12-16 1998-11-11 Hostalen Polyethylen GmbH Verfahren zur Homo- und Copolymerisation von 1-Olefinen
BE1006439A3 (fr) * 1992-12-21 1994-08-30 Solvay Societe Annonyme Procede de preparation d'une composition de polymeres d'ethylene, composition de polymeres d'ethylene et son utilisation.
BE1007148A3 (fr) * 1993-05-17 1995-04-11 Solvay Support pour catalyseurs, procede pour la fabrication d'un gel precurseur d'un support pour catalyseurs, procede de preparation d'un support pour catalyseurs, catalyseur pour la polymerisation d'olefines et procede pour la polymerisation d'olefines au moyen de ce catalyseur.
JP3365668B2 (ja) * 1994-03-02 2003-01-14 三井化学株式会社 エチレン系重合体、エチレン重合用固体状チタン触媒成分、該触媒成分を含むエチレン重合用触媒および該触媒を用いるエチレン系重合体の製造方法
US6063878A (en) * 1996-09-13 2000-05-16 Fina Research, S.A. Process for the preparation of polyethylene which has a broad molecular weight distribution

Also Published As

Publication number Publication date
AR025116A1 (es) 2002-11-13
HUP9601108A3 (en) 2001-01-29
CZ290626B6 (cs) 2002-09-11
BR9602100A (pt) 1998-10-06
CN1127525C (zh) 2003-11-12
KR960037706A (ko) 1996-11-19
RU2164231C2 (ru) 2001-03-20
US6201078B1 (en) 2001-03-13
NO315325B1 (no) 2003-08-18
ATE183524T1 (de) 1999-09-15
JP4091667B2 (ja) 2008-05-28
EP0739909B1 (fr) 1999-08-18
EP0908474B1 (fr) 2002-11-13
AU5069896A (en) 1996-11-07
ATE227746T1 (de) 2002-11-15
DE69603773D1 (de) 1999-09-23
AR025117A2 (es) 2002-11-13
CZ122296A3 (en) 1996-11-13
US6335411B1 (en) 2002-01-01
EP0908474A2 (fr) 1999-04-14
AU697264B2 (en) 1998-10-01
CN1147521A (zh) 1997-04-16
BE1009308A3 (fr) 1997-02-04
HU9601108D0 (en) 1996-06-28
US6291602B1 (en) 2001-09-18
DE69625711T2 (de) 2003-10-09
EP0906922B1 (fr) 2003-01-08
DE69625711D1 (de) 2003-02-13
NO961697L (no) 1996-10-29
DE69624844D1 (de) 2002-12-19
ATE230767T1 (de) 2003-01-15
CA2174400A1 (fr) 1996-10-29
ZA963067B (en) 1996-07-29
HU223095B1 (hu) 2004-03-29
KR100430198B1 (ko) 2004-07-30
JPH08301932A (ja) 1996-11-19
HUP9601108A2 (en) 1997-12-29
AR025118A2 (es) 2002-11-13
EP0906922A2 (fr) 1999-04-07
EP0908474A3 (fr) 1999-05-19
JP4145951B2 (ja) 2008-09-03
JP2008050614A (ja) 2008-03-06
NO961697D0 (no) 1996-04-26
DE69603773T2 (de) 2000-03-09
EP0906922A3 (en) 1999-05-19
EP0739909A1 (fr) 1996-10-30
CA2174400C (fr) 2008-09-09
DE69624844T2 (de) 2003-10-09

Similar Documents

Publication Publication Date Title
ES2138286T3 (es) Polimero de etileno y procedimientos para su obtencion.
ITMI951444A0 (it) Catalizzatore metallocenico per la (co) polimerizzazione delle olefine
MY132781A (en) Olefin polymerization
DE59507307D1 (de) Amidinato-Katalysatorsysteme zur Polymerisation von Olefinen
CA2024899A1 (en) Olefin polymerization catalysts
DE59809824D1 (de) Geträgertes katalysatorsystem zur polymerisation von olefinen
ZA943595B (en) Supported metallocene catalyst systems for the polymerization of olefins preparation and use thereof
BR9502044A (pt) Processo para preparar um sistema catalisador contendo metaloceno e processo para polimerizar uma olefina
DE69705186T2 (de) Katalysatorsysteme für die (Co)Polymerisation von Alpha-Olefinen
TR200000668T2 (tr) Siklopentafenantreneil metal kompleksleri ve polimerizasyon yöntemi
ES2082233T3 (es) Catalizadores soportados con monociclopentadienilo de metal de transicion para la polimerizacion de olefinas.
BR9913363A (pt) Recipiente de distribuição colapsável, e, processos para melhorar a adesão entre a primeira camada composta por um primeiro polìmero de etileno e uma segunda camada contìgua composta de um polìmero de propileno, e para melhorar a adesão entre uma cabeça de tubo de distribuição colapsável compreendendo um polìmero de propileno e uma camada de parede do corpo do tubo de distribuição colapsável composta de um primeiro polìmero de etileno
AU3886789A (en) Support for chromium catalyst used in olefin polymerization
AU2348288A (en) Catalyst composition for polymerizing alpha olefins and alpha olefins polymerization therewith
MX9300496A (es) Copolimero de polietileno y proceso de polimerizacion del mismo.
ES2186152T3 (es) Polimerizacion de olefinas.
DE69417621T2 (de) Katalysatorträger und Katalysator für Alpha-Olefinpolymerisation; Verfahren zu ihrer Herstellung und Polymerisation von Alpha-Olefinen in Gegenwart des Katalysators
DE69523204D1 (de) Katalysatorensysteme zur Polymerisation von Olefinen mit verbesserter Stereoselektivität und breiter Molekulargewichtsverteilung
ES2160757T3 (es) Catalizadores para la polimerizacion de alfa-olefinas.
ES2071211T3 (es) Catalizador y prepolimero usados para la polimerizacion de olefinas y (co)polimero de etileno obtenible a partir de la misma.
BR9810350A (pt) Copolìmero elastomérico e processo para a preparação do mesmo
DE69011445D1 (de) Katalysatorsystem für Polymerisation.
DE69323932D1 (de) Verbessertes Katalysatorsystem zur Polymerisation von Olefinen
ES2113593T3 (es) Composiciones cataliticas de cromo y procedimientos de polimerizacion que las utilizan.
WO2002051884A3 (en) A catalyst system and its use in a polymerization process

Legal Events

Date Code Title Description
PC2A Transfer of patent
EC2A Search report published

Date of ref document: 19971201

Kind code of ref document: A1

Effective date: 19971201

FG2A Definitive protection

Ref document number: 739909

Country of ref document: ES