ES2157610T3 - Produccion de polietileno que tiene una distribucion de peso molecular bimodal. - Google Patents
Produccion de polietileno que tiene una distribucion de peso molecular bimodal.Info
- Publication number
- ES2157610T3 ES2157610T3 ES97953880T ES97953880T ES2157610T3 ES 2157610 T3 ES2157610 T3 ES 2157610T3 ES 97953880 T ES97953880 T ES 97953880T ES 97953880 T ES97953880 T ES 97953880T ES 2157610 T3 ES2157610 T3 ES 2157610T3
- Authority
- ES
- Spain
- Prior art keywords
- chromium
- molecular weight
- weight distribution
- catalyst
- around
- 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
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
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
LA INVENCION SE REFIERE A UN PROCEDIMIENTO DE PRODUCCION DE POLIETILENO DE ELEVADA DENSIDAD, CON UNA DISTRIBUCION DEL PESO MOLECULAR BIMODAL. DICHO PROCEDIMIENTO CONSISTE EN PONER EN CONTACTO PREVIO UN CATALIZADOR A BASE DE CROMO CON UN OXANO METALICO DE ALQUILO, DONDE DICHO CATALIZADOR COMPRENDE OXIDO DE CROMO SOBRE UN SOPORTE QUE CONTIENE SILICE, PARA FORMAR UN SISTEMA CATALIZADOR EN EL CUAL LA RELACION ATOMICA DEL METAL DEL OXANO AL CROMO ES INFERIOR A 1; Y POLIMERIZAR ETILENO O COPOLIMERIZAR ETILENO Y UN COMONOMERO ALFA-OLEFINICO QUE COMPRENDE DE 3 A 10 ATOMOS DE CARBONO, EN PRESENCIA DEL SISTEMA CATALIZADOR. SE DESCRIBE ASIMISMO UN SISTEMA CATALIZADOR PARA POLIMERIZAR ETILENO O COPOLIMERIZAR ETILENO Y UN COMONOMERO ALFA-OLEFINICO QUE COMPRENDE DE 3 A 10 ATOMOS DE CARBONO, PARA PRODUCIR POLIETILENO DE ALTA DENSIDAD. EL SISTEMA CATALIZADOR COMPRENDE UN CATALIZADOR A BASE DE CROMO QUE COMPRENDE OXIDO DE CROMO SOBRE UN SOPORTE QUE CONTIENE SILICE Y UN OXANO METALICO ALQUILICO, CON EL CUALSE HA PUESTO EN CONTACTO PREVIAMENTE DICHO CATALIZADOR, SIENDO LA RELACION ATOMICA DEL METAL DEL OXANO AL CROMO, MENOR QUE 1. SE DESCRIBE TAMBIEN UN PROCEDIMIENTO DE PRODUCCION DE POLIETILENO DE ALTA DENSIDAD CON UNA DISTRIBUCION DEL PESO MOLECULAR BIMODAL. DICHO PROCEDIMIENTO CONSISTE EN POLIMERIZAR ETILENO O COPOLIMERIZAR ETILENO Y UN COMONOMERO ALFA-OLEFINICO DE 3 A 10 ATOMOS DE CARBONO, EN PRESENCIA DE UN SISTEMA CATALIZADOR QUE CONTIENE UN CATALIZADOR A BASE DE CROMO, EL CUAL COMPRENDE OXIDO DE CROMO SOBRE UN SOPORTE QUE CONTIENE SILICE, Y UN OXANO METALICO ALQUILICO, EN UNA CANTIDAD DE APROX. EL 0,45 % EN PESO, BASADA EN EL PESO DEL CATALIZADOR A BASE DE CROMO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96120697A EP0849294A1 (en) | 1996-12-20 | 1996-12-20 | Production of polyethylene having a broad molecular weight distribution |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2157610T3 true ES2157610T3 (es) | 2001-08-16 |
Family
ID=8223538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97953880T Expired - Lifetime ES2157610T3 (es) | 1996-12-20 | 1997-12-19 | Produccion de polietileno que tiene una distribucion de peso molecular bimodal. |
Country Status (9)
Country | Link |
---|---|
US (2) | US6417131B1 (es) |
EP (2) | EP0849294A1 (es) |
JP (1) | JP2001506695A (es) |
AT (1) | ATE200297T1 (es) |
DE (1) | DE69704501T2 (es) |
DK (1) | DK0946611T3 (es) |
ES (1) | ES2157610T3 (es) |
PT (1) | PT946611E (es) |
WO (1) | WO1998028348A1 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0849294A1 (en) * | 1996-12-20 | 1998-06-24 | Fina Research S.A. | Production of polyethylene having a broad molecular weight distribution |
US7943700B2 (en) * | 2002-10-01 | 2011-05-17 | Exxonmobil Chemical Patents Inc. | Enhanced ESCR of HDPE resins |
GB0720983D0 (en) | 2007-10-26 | 2007-12-05 | Ineos Silicas Ltd | Catalyst particles their preparation and use |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1745495A1 (de) * | 1967-01-31 | 1971-09-30 | Union Carbide Corp | Verfahren zur Herstellung eines Katalysatorkomplexes,insbesondere zur Herstellung von Polyaethylen |
US4025707A (en) * | 1974-03-28 | 1977-05-24 | Phillips Petroleum Company | Mixed hydrocarbyloxide treated catalyst activated at different temperatures |
US4276399A (en) * | 1978-11-17 | 1981-06-30 | National Petro Chemicals Corp. | Supported catalyst from chromium for olefin polymerization |
DE3329016A1 (de) * | 1983-08-11 | 1985-02-28 | Basf Ag, 6700 Ludwigshafen | Verfahren zum herstellen von polymerisaten des ethylens mittels eines kieselsaeure-xerogel/chromtrioxid-katalysators |
JPH02105806A (ja) * | 1988-10-13 | 1990-04-18 | Nippon Oil Co Ltd | エチレン重合体の製造方法 |
US5237025A (en) | 1990-10-09 | 1993-08-17 | Phillips Petroleum Company | Process for making bimodal polyolefins using two independent particulate catalysts |
WO1993009149A1 (en) * | 1991-11-04 | 1993-05-13 | Chevron Research And Technology Company | Olefin polymerization using an aluminoxane/chromium catalyst |
EP0849294A1 (en) * | 1996-12-20 | 1998-06-24 | Fina Research S.A. | Production of polyethylene having a broad molecular weight distribution |
-
1996
- 1996-12-20 EP EP96120697A patent/EP0849294A1/en not_active Withdrawn
-
1997
- 1997-12-19 DK DK97953880T patent/DK0946611T3/da active
- 1997-12-19 JP JP52837198A patent/JP2001506695A/ja not_active Ceased
- 1997-12-19 WO PCT/EP1997/007178 patent/WO1998028348A1/en active IP Right Grant
- 1997-12-19 EP EP97953880A patent/EP0946611B1/en not_active Expired - Lifetime
- 1997-12-19 AT AT97953880T patent/ATE200297T1/de active
- 1997-12-19 ES ES97953880T patent/ES2157610T3/es not_active Expired - Lifetime
- 1997-12-19 DE DE69704501T patent/DE69704501T2/de not_active Expired - Fee Related
- 1997-12-19 PT PT97953880T patent/PT946611E/pt unknown
-
2000
- 2000-02-28 US US09/516,967 patent/US6417131B1/en not_active Expired - Fee Related
-
2002
- 2002-01-04 US US10/037,523 patent/US20020147285A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DK0946611T3 (da) | 2001-07-09 |
JP2001506695A (ja) | 2001-05-22 |
EP0849294A1 (en) | 1998-06-24 |
US6417131B1 (en) | 2002-07-09 |
WO1998028348A1 (en) | 1998-07-02 |
DE69704501D1 (de) | 2001-05-10 |
EP0946611A1 (en) | 1999-10-06 |
PT946611E (pt) | 2001-09-28 |
EP0946611B1 (en) | 2001-04-04 |
DE69704501T2 (de) | 2002-03-28 |
US20020147285A1 (en) | 2002-10-10 |
ATE200297T1 (de) | 2001-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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