TW340118B - Single reactor bimodal HMW-HDPE film resin with improved bubble stability the invention relates to a granule product - Google Patents
Single reactor bimodal HMW-HDPE film resin with improved bubble stability the invention relates to a granule productInfo
- Publication number
- TW340118B TW340118B TW085111329A TW85111329A TW340118B TW 340118 B TW340118 B TW 340118B TW 085111329 A TW085111329 A TW 085111329A TW 85111329 A TW85111329 A TW 85111329A TW 340118 B TW340118 B TW 340118B
- Authority
- TW
- Taiwan
- Prior art keywords
- resin
- hmw
- single reactor
- relates
- granule product
- Prior art date
Links
- 239000011347 resin Substances 0.000 title abstract 7
- 229920005989 resin Polymers 0.000 title abstract 7
- 229940095686 granule product Drugs 0.000 title abstract 2
- 230000002902 bimodal effect Effects 0.000 title 1
- 229920006262 high density polyethylene film Polymers 0.000 title 1
- 239000003054 catalyst Substances 0.000 abstract 3
- 150000004696 coordination complex Chemical class 0.000 abstract 3
- 230000009977 dual effect Effects 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 229920001519 homopolymer Polymers 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
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
- 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
- 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
- C08F4/642—Component covered by group C08F4/64 with an organo-aluminium compound
- C08F4/6423—Component of C08F4/64 containing at least two different metals
- C08F4/6425—Component of C08F4/64 containing at least two different metals containing magnesium
-
- 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
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
-
- 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
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65916—Component covered by group C08F4/64 containing a transition metal-carbon bond supported on a carrier, e.g. silica, MgCl2, polymer
-
- 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
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/65922—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/65925—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually non-bridged
-
- 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
- C08F2500/00—Characteristics or properties of obtained polyolefins; Use thereof
- C08F2500/05—Bimodal or multimodal molecular weight distribution
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
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)
- Crystallography & Structural Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/497,991 US5882750A (en) | 1995-07-03 | 1995-07-03 | Single reactor bimodal HMW-HDPE film resin with improved bubble stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW340118B true TW340118B (en) | 1998-09-11 |
Family
ID=23979169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW085111329A TW340118B (en) | 1995-07-03 | 1996-09-17 | Single reactor bimodal HMW-HDPE film resin with improved bubble stability the invention relates to a granule product |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5882750A (cg-RX-API-DMAC7.html) |
| EP (1) | EP0836623A4 (cg-RX-API-DMAC7.html) |
| JP (1) | JP3952418B2 (cg-RX-API-DMAC7.html) |
| KR (1) | KR100492675B1 (cg-RX-API-DMAC7.html) |
| AU (1) | AU704049B2 (cg-RX-API-DMAC7.html) |
| TW (1) | TW340118B (cg-RX-API-DMAC7.html) |
| WO (1) | WO1997002294A1 (cg-RX-API-DMAC7.html) |
Families Citing this family (71)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6403181B1 (en) * | 1995-07-03 | 2002-06-11 | Mobil Oil Corporation | Premium pipe resins |
| EP0837915B1 (en) | 1995-07-10 | 2001-08-22 | Borealis Technology Oy | Coating composition |
| US6114456A (en) * | 1996-11-25 | 2000-09-05 | Fina Research, S.A. | Medium density polyethylene compositions for film applications |
| EP0881237A1 (en) * | 1997-05-26 | 1998-12-02 | Fina Research S.A. | Process to produce bimodal polyolefins with metallocene catalysts using two reaction zones |
| EP1063116A1 (en) * | 1999-06-25 | 2000-12-27 | Fina Research S.A. | Automobile fuel tank |
| US6369176B1 (en) | 1999-08-19 | 2002-04-09 | Dupont Dow Elastomers Llc | Process for preparing in a single reactor polymer blends having a broad molecular weight distribution |
| US6403520B1 (en) | 1999-09-17 | 2002-06-11 | Saudi Basic Industries Corporation | Catalyst compositions for polymerizing olefins to multimodal molecular weight distribution polymer, processes for production and use of the catalyst |
| US6300439B1 (en) | 1999-11-08 | 2001-10-09 | Univation Technologies, Llc | Group 15 containing transition metal catalyst compounds, catalyst systems and their use in a polymerization process |
| US6274684B1 (en) | 1999-10-22 | 2001-08-14 | Univation Technologies, Llc | Catalyst composition, method of polymerization, and polymer therefrom |
| EP1138702A1 (en) * | 2000-03-30 | 2001-10-04 | Fina Research S.A. | Metallocene-produced polyethylene for glossy plastic containers |
| US6462149B1 (en) | 2000-09-22 | 2002-10-08 | Union Carbide Chemicals & Plastics Technology Corporation | Control of resin split in single-reactor manufacture of bimodal polyolefins |
| MY131000A (en) * | 2001-03-16 | 2007-07-31 | Dow Global Technologies Inc | High melt strength polymers and method of making same |
| EP1300240A1 (en) * | 2001-10-02 | 2003-04-09 | Atofina Research S.A. | High ESCR glossy plastic containers |
| AU2002337850A1 (en) * | 2001-11-15 | 2003-06-10 | Exxonmobil Chemical Patents Inc. | Polymerization monitoring and control using leading indicators |
| US20030136788A1 (en) * | 2002-01-24 | 2003-07-24 | Beaty Albert Marion | Fuel tank and method of making same |
| EP1357152A1 (en) | 2002-04-26 | 2003-10-29 | Solvay Polyolefins Europe-Belgium (Société Anonyme) | Polymer for fuel tanks |
| EP1359191A1 (en) * | 2002-04-29 | 2003-11-05 | SOLVAY POLYOLEFINS EUROPE - BELGIUM (Société Anonyme) | Polymer for fuel tanks |
| EP1539841B1 (en) * | 2002-09-20 | 2012-08-01 | ExxonMobil Chemical Patents Inc. | Polymer production at supercritical conditions |
| US20080153997A1 (en) * | 2006-12-20 | 2008-06-26 | Exxonmobil Research And Engineering | Polymer production at supercritical conditions |
| US8008412B2 (en) * | 2002-09-20 | 2011-08-30 | Exxonmobil Chemical Patents Inc. | Polymer production at supersolution conditions |
| US8058371B2 (en) * | 2002-09-20 | 2011-11-15 | Exxonmobil Chemical Patents Inc. | Super-solution homogeneous propylene polymerization |
| US7427649B2 (en) * | 2002-12-19 | 2008-09-23 | Basell Polyolefine Gmbh | Polyethylene blow molding composition for producing small containers |
| ES2268470T3 (es) * | 2002-12-24 | 2007-03-16 | Basell Polyolefine Gmbh | Composicion de polietileno para el moldeo por soplado destinadada a la produccion de grandes recipientes. |
| EP1576049B1 (en) * | 2002-12-24 | 2006-07-12 | Basell Polyolefine GmbH | Polyethylene composition for producing l-ring drums |
| PL377045A1 (pl) * | 2002-12-24 | 2006-01-23 | Basell Polyolefine Gmbh | Kompozycja polietylenowa do formowania z rozdmuchiwaniem przeznaczona do wytwarzania kanistrów typu jerry can |
| EP1496068A1 (en) * | 2003-07-09 | 2005-01-12 | Total Petrochemicals Research Feluy | Process to produce bimodal polyolefins with metallocene catalysts using two reaction zones. |
| US6828395B1 (en) | 2003-10-15 | 2004-12-07 | Univation Technologies, Llc | Polymerization process and control of polymer composition properties |
| US7238756B2 (en) * | 2003-10-15 | 2007-07-03 | Univation Technologies, Llc | Polymerization process and control of polymer composition properties |
| US6878454B1 (en) | 2003-12-05 | 2005-04-12 | Univation Technologies, Llc | Polyethylene films |
| CA2560348C (en) | 2004-04-07 | 2013-05-28 | Union Carbide Chemicals & Plastics Technology Corporation | Method of controlling olefin polymerization |
| DE102004020524A1 (de) | 2004-04-26 | 2005-11-10 | Basell Polyolefine Gmbh | Polyethylen und Katalysatorzusammensetzung zu dessen Herstellung |
| EP1774485B1 (en) * | 2004-07-08 | 2016-05-04 | ExxonMobil Chemical Patents Inc. | Polymer production at supercritical conditions |
| US20060020063A1 (en) * | 2004-07-22 | 2006-01-26 | Guenther Gerhard K | Controlled finishes for free surface polyethylene resins |
| CN100349413C (zh) * | 2004-11-15 | 2007-11-14 | 华为技术有限公司 | 智能网中的业务调用方法 |
| DE102004055587A1 (de) * | 2004-11-18 | 2006-05-24 | Basell Polyolefine Gmbh | Polyethylen Formmasse für die äußere Ummantelung von Elektrokabeln |
| DE102004055588A1 (de) * | 2004-11-18 | 2006-05-24 | Basell Polyolefine Gmbh | Polyethylen Formmasse für die Beschichtung von Stahlrohren |
| DE102005009916A1 (de) | 2005-03-01 | 2006-09-07 | Basell Polyolefine Gmbh | Polyethylen Formmasse zum Herstellen von Blasfolien mit verbesserten mechanischen Eigenschaften |
| DE102005009895A1 (de) * | 2005-03-01 | 2006-09-07 | Basell Polyolefine Gmbh | Polyethylen Formmasse zum Herstellen von Blasfolien mit verbesserten mechanischen Eigenschaften |
| DE102005009896A1 (de) * | 2005-03-01 | 2006-09-07 | Basell Polyolefine Gmbh | Polyethylen Formmasse zum Herstellen von Blasfolien mit verbesserten mechanischen Eigenschaften |
| CN101133092B (zh) * | 2005-03-04 | 2011-01-12 | 尤尼威蒂恩技术有限公司 | 生产率提高的齐格勒型催化剂 |
| DE102005030941A1 (de) * | 2005-06-30 | 2007-01-11 | Basell Polyolefine Gmbh | Polyethylen Formmasse zur Herstellung von spritzgegossenen Fertigteilen |
| DE102005040390A1 (de) * | 2005-08-25 | 2007-03-01 | Basell Polyolefine Gmbh | Multimodale Polyethylen Formmasse zur Herstellung von Rohren mit verbesserten mechanischen Eigenschaften |
| US20070049711A1 (en) * | 2005-09-01 | 2007-03-01 | Chi-I Kuo | Catalyst compositions comprising support materials having an improved particle-size distribution |
| CN101273445B (zh) * | 2005-09-28 | 2012-07-25 | 大见忠弘 | 可控气氛的接合装置、接合方法及电子装置 |
| US7662894B2 (en) * | 2006-12-19 | 2010-02-16 | Saudi Bosic Industries Corporation | Polymer supported metallocene catalyst composition for polymerizing olefins |
| US8143352B2 (en) * | 2006-12-20 | 2012-03-27 | Exxonmobil Research And Engineering Company | Process for fluid phase in-line blending of polymers |
| US8242237B2 (en) * | 2006-12-20 | 2012-08-14 | Exxonmobil Chemical Patents Inc. | Phase separator and monomer recycle for supercritical polymerization process |
| EP2102282B1 (en) * | 2006-12-22 | 2011-02-09 | Basell Polyolefine GmbH | Multimodal polyethylene composition, mixed catalyst and process for preparing the composition |
| US8080610B2 (en) | 2007-03-06 | 2011-12-20 | Exxonmobil Research And Engineering Company | Monomer recycle process for fluid phase in-line blending of polymers |
| DE102007017903A1 (de) | 2007-04-13 | 2008-10-16 | Basell Polyolefine Gmbh | Polyethylen und Katalysatorzusammensetzung und Verfahren zu dessen Herstellung |
| EP2201042B1 (en) * | 2007-09-13 | 2012-06-27 | ExxonMobil Research and Engineering Company | In-line blending of plasticizers with a base polymer |
| CN101855249B (zh) * | 2007-09-13 | 2013-02-13 | 埃克森美孚研究工程公司 | 在线生产增塑聚合物和增塑聚合物共混物的方法 |
| US7910679B2 (en) * | 2007-12-20 | 2011-03-22 | Exxonmobil Research And Engineering Company | Bulk homogeneous polymerization process for ethylene propylene copolymers |
| WO2009082463A1 (en) * | 2007-12-20 | 2009-07-02 | Exxonmobil Research And Engineering Company | In-line process to produce pellet-stable polyolefins |
| EP2450403A1 (en) * | 2007-12-20 | 2012-05-09 | ExxonMobil Research and Engineering Company | Polypropylene ethylene-propylene copolymer blends and in-line process to produce them |
| US8318875B2 (en) * | 2008-01-18 | 2012-11-27 | Exxonmobil Chemical Patents Inc. | Super-solution homogeneous propylene polymerization and polypropylenes made therefrom |
| MX337518B (es) | 2008-09-25 | 2016-03-09 | Basell Polyolefine Gmbh | Composicion de polietileno lineal de baja densidad (lldpe) resistente a impactos y peliculas hechas de la misma. |
| KR101806758B1 (ko) * | 2008-09-25 | 2017-12-07 | 바젤 폴리올레핀 게엠베하 | 내충격성 lldpe 조성물 및 이것으로 제조된 필름 |
| EP3037253A1 (en) | 2014-12-22 | 2016-06-29 | Boegli-Gravures S.A. | Micro-embossing |
| WO2019162760A1 (en) | 2018-02-05 | 2019-08-29 | Exxonmobil Chemical Patents Inc. A Corporation Of State Of Delaware | Enhanced processability of lldpe by addition of ultra-high molecular weight high density polyethylene |
| US11214669B2 (en) | 2018-03-21 | 2022-01-04 | Lg Chem, Ltd. | Polyolefin resin composition and stretch film using the same |
| KR102806598B1 (ko) | 2018-06-13 | 2025-05-19 | 유니베이션 테크놀로지즈, 엘엘씨 | 이중 모드 폴리에틸렌 공중합체 및 그의 필름 |
| CN112752771B (zh) | 2018-08-29 | 2023-05-23 | 尤尼威蒂恩技术有限责任公司 | 双峰聚乙烯共聚物和其薄膜 |
| KR102785417B1 (ko) | 2018-09-28 | 2025-03-27 | 유니베이션 테크놀로지즈, 엘엘씨 | 이중 모드 폴리에틸렌 공중합체 조성물 및 이로 제조된 파이프 |
| EP4034577B1 (en) | 2019-09-26 | 2024-07-17 | Univation Technologies, LLC | Bimodal polyethylene homopolymer composition |
| US12330362B2 (en) | 2019-10-28 | 2025-06-17 | Univation Technologies, Llc | Method of increasing bubble stability of a polyethylene resin |
| CA3193394A1 (en) | 2020-09-22 | 2022-03-31 | Bo Liu | Bimodal polyethylene copolymer and film thereof |
| CN116507669A (zh) | 2020-12-22 | 2023-07-28 | 陶氏环球技术有限责任公司 | 改性聚乙烯树脂和其制备方法 |
| EP4587514A1 (en) | 2022-10-11 | 2025-07-23 | Dow Global Technologies LLC | Bimodal hdpe and polyethylene blend containing virgin and recycled hdpe materials |
| KR20250085790A (ko) | 2022-10-11 | 2025-06-12 | 다우 글로벌 테크놀로지스 엘엘씨 | 버진 및 재활용 hdpe 물질을 함유하는 폴리에틸렌 블렌드 |
| WO2024263748A1 (en) | 2023-06-23 | 2024-12-26 | Univation Technologies, Llc | Single reactor-made bimodal high-density polyethylene copolymer and methods and articles |
Family Cites Families (115)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3135809A (en) * | 1960-07-21 | 1964-06-02 | Southern Res Inst | Isomerization process |
| US3242099A (en) * | 1964-03-27 | 1966-03-22 | Union Carbide Corp | Olefin polymerization catalysts |
| US3950269A (en) * | 1974-05-20 | 1976-04-13 | E. I. Du Pont De Nemours & Co. | Olefin polymerization catalyst system and process for polymerization of olefins |
| FR2312511A1 (fr) * | 1975-05-27 | 1976-12-24 | Naphtachimie Sa | Polymerisation a sec des olefines dans des reacteurs en serie |
| IT1076203B (it) * | 1977-01-12 | 1985-04-27 | Montedison Spa | Procedimento per la polimerizzazione di etilene in fase gas |
| US4414369A (en) * | 1977-08-17 | 1983-11-08 | Nippon Oil Company, Limited | Continuous process for the preparation of polyolefins having widely distributed molecular weights |
| US4263168A (en) * | 1979-01-10 | 1981-04-21 | Imperial Chemical Industries Limited | Olefine polymerization catalyst |
| JPS55164205A (en) * | 1979-06-07 | 1980-12-20 | Sumitomo Chem Co Ltd | Multistage polymerization of ethylene |
| JPS5610506A (en) * | 1979-07-09 | 1981-02-03 | Mitsui Petrochem Ind Ltd | Production of ethylene polymer composition |
| 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 |
| US4324691A (en) * | 1980-01-10 | 1982-04-13 | Imperial Chemical Industries Limited | Catalyst component |
| DE3007725A1 (de) * | 1980-02-29 | 1981-09-17 | Hansjörg Prof. Dr. 2000 Hamburg Sinn | Verfahren zur herstellung von polyethylen, polypropylen und copolymeren |
| JPS56166207A (en) * | 1980-05-27 | 1981-12-21 | Mitsui Petrochem Ind Ltd | Gas-phase polymerization of olefin |
| JPS56166208A (en) * | 1980-05-27 | 1981-12-21 | Mitsui Petrochem Ind Ltd | Gas-phase polymerization of olefin |
| JPS6045645B2 (ja) * | 1980-10-09 | 1985-10-11 | 三井化学株式会社 | オレフイン類の気相重合方法 |
| US4446288A (en) * | 1981-05-05 | 1984-05-01 | Chemplex Company | Polymerization method |
| US4402861A (en) * | 1981-05-05 | 1983-09-06 | Chemplex Company | Polymerization catalyst and method |
| DE3127133A1 (de) * | 1981-07-09 | 1983-01-27 | Hoechst Ag, 6000 Frankfurt | Verfahren zur herstellung von polyolefinen und deren copolymerisaten |
| US4481301A (en) * | 1981-12-04 | 1984-11-06 | Mobil Oil Corporation | Highly active catalyst composition for polymerizing alpha-olefins |
| 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 |
| DE3242149A1 (de) * | 1982-11-13 | 1984-05-17 | Basf Ag, 6700 Ludwigshafen | Verfahren zum herstellen von homo- und copolymerisaten von (alpha)-monoolefinen mittels eines ziegler-katalysatorsystems |
| US4481302A (en) * | 1983-01-27 | 1984-11-06 | Phillips Petroleum Company | Chromium on mixed metal phosphate base with organoboron cocatalyst |
| US4707530A (en) * | 1983-01-31 | 1987-11-17 | Exxon Research & Engineering Co. | Polymerization catalyst |
| FR2546522B1 (fr) * | 1983-05-25 | 1985-07-26 | Ato Chimie | Procede de preparation d'une composante de metal de transition pour un systeme catalytique de polymerisation d'olefines |
| US5324800A (en) | 1983-06-06 | 1994-06-28 | Exxon Chemical Patents Inc. | Process and catalyst for polyolefin density and molecular weight control |
| US4530914A (en) * | 1983-06-06 | 1985-07-23 | Exxon Research & Engineering Co. | Process and catalyst for producing polyethylene having a broad molecular weight distribution |
| US4525322A (en) * | 1983-06-28 | 1985-06-25 | E. I. Du Pont De Nemours And Company | Ethylene polymer composition for blow molding |
| US4820786A (en) * | 1983-08-29 | 1989-04-11 | Chevron Research Company | Process for the preparation of linear low density polyethylene |
| DE3426193A1 (de) * | 1984-07-17 | 1986-01-23 | Basf Ag, 6700 Ludwigshafen | Verfahren zum herstellen einer uebergangsmetall-katalysatorkomponente fuer ziegler-katalysatorsysteme |
| US4578373A (en) * | 1984-09-04 | 1986-03-25 | Exxon Research & Engineering Co. | Polymerization catalyst system |
| DE3443087A1 (de) * | 1984-11-27 | 1986-05-28 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von polyolefinen |
| FR2577558B1 (fr) * | 1985-02-19 | 1987-03-06 | Bp Chimie Sa | Polymerisation en plusieurs etapes d'alpha-olefines en phase gazeuse |
| US4603173A (en) * | 1985-02-27 | 1986-07-29 | E. I. Du Pont De Nemours And Company | Processing polyethylene resins |
| DE3508887A1 (de) * | 1985-03-13 | 1986-09-25 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von optisch aktiven polyolefinen |
| US4897455A (en) * | 1985-06-21 | 1990-01-30 | Exxon Chemical Patents Inc. | Polymerization process |
| US4808561A (en) * | 1985-06-21 | 1989-02-28 | Exxon Chemical Patents Inc. | Supported polymerization catalyst |
| US4710522A (en) * | 1985-08-16 | 1987-12-01 | Mobil Oil Corporation | Foamable composition and process for forming same |
| US4701432A (en) * | 1985-11-15 | 1987-10-20 | Exxon Chemical Patents Inc. | Supported polymerization catalyst |
| US4752597A (en) * | 1985-12-12 | 1988-06-21 | Exxon Chemical Patents Inc. | New polymerization catalyst |
| US4888318A (en) * | 1986-01-24 | 1989-12-19 | Mobil Oil Corporation | Catalyst composition for polymerizing alpha-olefins |
| US4658078A (en) * | 1986-08-15 | 1987-04-14 | Shell Oil Company | Vinylidene olefin process |
| US4665047A (en) * | 1986-08-15 | 1987-05-12 | Shell Oil Company | Stabilization of metallocene/aluminoxane catalysts |
| US5077255A (en) * | 1986-09-09 | 1991-12-31 | Exxon Chemical Patents Inc. | New supported polymerization catalyst |
| EP0268214B1 (en) * | 1986-11-13 | 1991-08-21 | Idemitsu Kosan Company Limited | Process for producing propylene oligomers |
| US5055438A (en) * | 1989-09-13 | 1991-10-08 | Exxon Chemical Patents, Inc. | Olefin polymerization catalysts |
| US5241025A (en) | 1987-01-30 | 1993-08-31 | Exxon Chemical Patents Inc. | Catalyst system of enhanced productivity |
| DE3702852A1 (de) * | 1987-01-31 | 1988-08-11 | Bayer Ag | 1-aminomethyl-3-aryl-4-cyano-pyrrole |
| JPH0742301B2 (ja) * | 1987-02-14 | 1995-05-10 | 三井石油化学工業株式会社 | 微粒子状アルミノオキサン、その製法およびその用途 |
| US4794096A (en) * | 1987-04-03 | 1988-12-27 | Fina Technology, Inc. | Hafnium metallocene catalyst for the polymerization of olefins |
| JP2538588B2 (ja) * | 1987-04-03 | 1996-09-25 | 三井石油化学工業株式会社 | オレフイン重合用固体触媒の製法 |
| US5206199A (en) * | 1987-04-20 | 1993-04-27 | Mitsui Petrochemical Industries, Ltd. | Catalyst for polymerizing an olefin and process for polymerizing an olefin |
| US5122491A (en) * | 1987-04-20 | 1992-06-16 | Mitsui Petrochemical Industries, Ltd. | Catalyst for polymerizing an olefin and process for polymerizing an olefin |
| JP2538595B2 (ja) * | 1987-05-13 | 1996-09-25 | 三井石油化学工業株式会社 | オレフイン重合用固体触媒 |
| JP2573613B2 (ja) * | 1987-08-14 | 1997-01-22 | 三菱化学株式会社 | エチレンの重合法 |
| JP2546859B2 (ja) * | 1987-10-08 | 1996-10-23 | 東燃株式会社 | エチレン重合用触媒 |
| US5026797A (en) * | 1987-10-22 | 1991-06-25 | Mitsubishi Petrochemical Co., Ltd. | Process for producing ethylene copolymers |
| US4918038A (en) * | 1987-10-29 | 1990-04-17 | Union Carbide Chemicals And Plastics Company Inc. | Process for the production of polyethylene with a broad and/or bimodal molecular weight distribution |
| US4937301A (en) * | 1987-12-17 | 1990-06-26 | Exxon Chemical Patents Inc. | Method for preparing a supported metallocene-alumoxane catalyst for gas phase polymerization |
| US4937217A (en) * | 1987-12-17 | 1990-06-26 | Exxon Chemical Patents Inc. | Method for utilizing triethylaluminum to prepare an alumoxane support for an active metallocene catalyst |
| US4925821A (en) * | 1987-12-17 | 1990-05-15 | Exxon Chemical Patents Inc. | Method for utilizing triethyaluminum to prepare an alumoxane support for an active metallocene catalyst |
| US4912075A (en) * | 1987-12-17 | 1990-03-27 | Exxon Chemical Patents Inc. | Method for preparing a supported metallocene-alumoxane catalyst for gas phase polymerization |
| DE3743321A1 (de) * | 1987-12-21 | 1989-06-29 | Hoechst Ag | 1-olefinpolymerwachs und verfahren zu seiner herstellung |
| DE3743320A1 (de) * | 1987-12-21 | 1989-06-29 | Hoechst Ag | 1-olefinstereoblockpolymerwachs und verfahren zu seiner herstellung |
| DE3743322A1 (de) * | 1987-12-21 | 1989-06-29 | Hoechst Ag | Polyethylenwachs und verfahren zu seiner herstellung |
| US4910272A (en) * | 1988-01-09 | 1990-03-20 | The Dow Chemical Company | Polymerization of olefins in the presence of a catalyst prepared from an inorganic oxide which has not been heat or chemically treated, organomagnesium compound, organic hydroxyl-containing compound, reducing halide and transition metal compound |
| US4980330A (en) * | 1988-01-09 | 1990-12-25 | The Dow Chemical Company | Polymerization of olefins in the presence of a catalyst prepared from an inorganic oxide which has not been heat or chemically treated, organomagnesium compound, organic hydroxyl-containing compound, reducing halide and transition metal compound |
| US5008228A (en) * | 1988-03-29 | 1991-04-16 | Exxon Chemical Patents Inc. | Method for preparing a silica gel supported metallocene-alumoxane catalyst |
| US5147949A (en) * | 1988-03-29 | 1992-09-15 | Exxon Chemical Patents Inc. | Polymerization process using a silica gel supported metallocene-alumoxane catalyst |
| US5001205A (en) * | 1988-06-16 | 1991-03-19 | Exxon Chemical Patents Inc. | Process for production of a high molecular weight ethylene α-olefin elastomer with a metallocene alumoxane catalyst |
| KR940008983B1 (ko) * | 1988-06-23 | 1994-09-28 | 도오소오 가부시끼가이샤 | 폴리에틸렌의 제조방법 |
| US5225500A (en) * | 1988-07-15 | 1993-07-06 | Fina Technology, Inc. | Process and catalyst for producing syndiotactic polyolefins |
| US5162278A (en) * | 1988-07-15 | 1992-11-10 | Fina Technology, Inc. | Non-bridged syndiospecific metallocene catalysts and polymerization process |
| US5304523A (en) | 1988-07-15 | 1994-04-19 | Fina Technology, Inc. | Process and catalyst for producing crystalline polyolefins |
| KR920006464B1 (ko) * | 1988-09-14 | 1992-08-07 | 미쓰이 세끼유 가가꾸 고오교오 가부시끼가이샤 | 올레핀중합용 촉매성분, 올레핀중합용 촉매 및 이 올레핀중합용 촉매를 사용한 올레핀의 중합방법 |
| US5091352A (en) * | 1988-09-14 | 1992-02-25 | Mitsui Petrochemical Industries, Ltd. | Olefin polymerization catalyst component, olefin polymerization catalyst and process for the polymerization of olefins |
| US4935397A (en) * | 1988-09-28 | 1990-06-19 | Exxon Chemical Patents Inc. | Supported metallocene-alumoxane catalyst for high pressure polymerization of olefins and a method of preparing and using the same |
| US5006500A (en) * | 1988-10-27 | 1991-04-09 | Exxon Chemical Patents Inc. | Olefin polymerization catalyst from trialkylaluminum mixture, silica gel and a metallocene |
| US5043515A (en) * | 1989-08-08 | 1991-08-27 | Shell Oil Company | Ethylene oligomerization catalyst and process |
| US4914253A (en) * | 1988-11-04 | 1990-04-03 | Exxon Chemical Patents Inc. | Method for preparing polyethylene wax by gas phase polymerization |
| US5047468A (en) * | 1988-11-16 | 1991-09-10 | Union Carbide Chemicals And Plastics Technology Corporation | Process for the in situ blending of polymers |
| US5126398A (en) * | 1988-11-16 | 1992-06-30 | Union Carbide Chemicals & Plastics Technology Corporation | Process for the in situ blending of polymers |
| US5086024A (en) * | 1988-12-02 | 1992-02-04 | Texas Alkyls, Inc. | Catalyst system for polymerization of olefins |
| IT1237398B (it) * | 1989-01-31 | 1993-06-01 | Ausimont Srl | Catalizzatori per la polimerizzazione di olefine. |
| DE3907964A1 (de) * | 1989-03-11 | 1990-09-13 | Hoechst Ag | Verfahren zur herstellung eines syndiotaktischen polyolefins |
| US5238891A (en) | 1989-06-15 | 1993-08-24 | Phillips Petroleum Company | Olefin polymerization catalyst and process |
| US5057475A (en) * | 1989-09-13 | 1991-10-15 | Exxon Chemical Patents Inc. | Mono-Cp heteroatom containing group IVB transition metal complexes with MAO: supported catalyst for olefin polymerization |
| US5208304A (en) * | 1989-12-19 | 1993-05-04 | Board Of Trustees, Leland Stanford Junior University | Stereoregular cyclopolymers and method |
| US5086135A (en) * | 1989-12-26 | 1992-02-04 | Mobil Oil Corporation | Zirconium-based catalyst composition for polymerizing olefins and polymerization therewith |
| US5032562A (en) * | 1989-12-27 | 1991-07-16 | Mobil Oil Corporation | Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution |
| JP2826362B2 (ja) * | 1990-02-13 | 1998-11-18 | 三井化学株式会社 | オレフィン重合用固体触媒の製造方法、オレフィン重合用固体触媒およびオレフィンの重合方法 |
| DE4005947A1 (de) * | 1990-02-26 | 1991-08-29 | Basf Ag | Loesliche katalysatorsysteme zur polymerisation von c(pfeil abwaerts)2(pfeil abwaerts)- bis c(pfeil abwaerts)1(pfeil abwaerts)(pfeil abwaerts)0(pfeil abwaerts)-alk-1-enen |
| FR2659337B1 (fr) * | 1990-03-12 | 1992-06-05 | Bp Chemicals Snc | Procede de preparation d'un catalyseur a base de zirconium, de titane et/ou de vanadium supporte sur du chlorure de magnesium, et utilisation du catalyseur dans la polymerisation des olefines. |
| DE69110579T2 (de) * | 1990-03-16 | 1995-12-21 | Tonen Corp | Katalysator für die olefinpolymerisation. |
| DE4015254A1 (de) * | 1990-05-12 | 1991-11-14 | Hoechst Ag | Verfahren zur herstellung eines polyolefins |
| US5173464A (en) * | 1990-06-11 | 1992-12-22 | Pettijohn Ted M | Olefin polymerization |
| IT1249008B (it) * | 1990-06-27 | 1995-02-11 | Himont Inc | Copolimeri cristallini sindiotattici del propilene |
| US5066631A (en) * | 1990-10-16 | 1991-11-19 | Ethyl Corporation | Hydrocarbon solutions of alkylaluminoxane compounds |
| EP0481480B1 (en) * | 1990-10-17 | 1995-01-25 | Idemitsu Kosan Company Limited | Process for producing propylene based oligomers |
| DE59104869D1 (de) * | 1990-11-12 | 1995-04-13 | Hoechst Ag | 2-Substituierte Bisindenylmetallocene, Verfahren zu ihrer Herstellung und ihre Verwendung als Katalysatoren bei der Olefinpolymerisation. |
| JP3182770B2 (ja) | 1991-01-29 | 2001-07-03 | ソニー株式会社 | タイムコード信号記録回路 |
| JP2929465B2 (ja) * | 1991-03-01 | 1999-08-03 | 東ソー株式会社 | 芳香族ビニル化合物重合用触媒および芳香族ビニル化合物重合体の製造方法 |
| US5087788A (en) * | 1991-03-04 | 1992-02-11 | Ethyl Corporation | Preparation of high purity vinylindene olefin |
| US5206197A (en) * | 1991-03-04 | 1993-04-27 | The Dow Chemical Company | Catalyst composition for preparation of syndiotactic vinyl aromatic polymers |
| DE69226564T3 (de) | 1991-05-20 | 2004-04-08 | Mitsui Chemicals, Inc. | Katalysator und Verfahren für Olefinpolymerisation |
| CA2069995C (en) | 1991-05-31 | 1996-04-09 | Mitsui Chemicals, Incorporated | Olefin polymerization solid catalyst, olefin polymerization catalyst and olefin polymerization |
| US5157008A (en) * | 1991-08-01 | 1992-10-20 | Ethyl Corporation | Hydrocarbon solutions of alkylaluminoxane compounds |
| US5281679A (en) | 1991-11-07 | 1994-01-25 | Exxon Chemical Patents Inc. | Catalyst and method of broadening polymer molecular weight distribution and increasing polymer tensile impact strength and products made thereof |
| US5359015A (en) | 1991-11-07 | 1994-10-25 | Exxon Chemical Patents Inc. | Metallocene catalysts and their production and use |
| US5198399A (en) * | 1992-01-17 | 1993-03-30 | Quantum Chemical Corporation | Polymerization catalyst and method |
| US5240894A (en) | 1992-05-18 | 1993-08-31 | Exxon Chemical Patents Inc. | Method for making and using a supported metallocene catalyst system |
| US5238892A (en) | 1992-06-15 | 1993-08-24 | Exxon Chemical Patents Inc. | Supported catalyst for 1-olefin(s) (co)polymerization |
| US5332706A (en) | 1992-12-28 | 1994-07-26 | Mobil Oil Corporation | Process and a catalyst for preventing reactor fouling |
| SG88707A1 (en) * | 1993-10-21 | 2002-05-21 | Mobil Oil Corp | Improved in situ blends of bimodal molecular weight distribution |
| ZA948934B (en) * | 1993-11-15 | 1996-05-10 | Mobil Oil Corp | Catalyst composition for use in the polymerization and copolymerization of ethylene |
-
1995
- 1995-07-03 US US08/497,991 patent/US5882750A/en not_active Expired - Lifetime
-
1996
- 1996-05-02 EP EP96914569A patent/EP0836623A4/en not_active Withdrawn
- 1996-05-02 JP JP50511897A patent/JP3952418B2/ja not_active Expired - Fee Related
- 1996-05-02 AU AU57890/96A patent/AU704049B2/en not_active Ceased
- 1996-05-02 KR KR10-1998-0700077A patent/KR100492675B1/ko not_active Expired - Fee Related
- 1996-05-02 WO PCT/US1996/006182 patent/WO1997002294A1/en not_active Ceased
- 1996-09-17 TW TW085111329A patent/TW340118B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU5789096A (en) | 1997-02-05 |
| KR19990028778A (ko) | 1999-04-15 |
| EP0836623A1 (en) | 1998-04-22 |
| AU704049B2 (en) | 1999-04-15 |
| KR100492675B1 (ko) | 2005-11-08 |
| US5882750A (en) | 1999-03-16 |
| JPH11508633A (ja) | 1999-07-27 |
| JP3952418B2 (ja) | 2007-08-01 |
| WO1997002294A1 (en) | 1997-01-23 |
| EP0836623A4 (en) | 1998-10-14 |
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