ATE375367T1 - Herstellung von polyethylen mit breiter molekulargewichtsverteilung - Google Patents
Herstellung von polyethylen mit breiter molekulargewichtsverteilungInfo
- Publication number
- ATE375367T1 ATE375367T1 AT00920640T AT00920640T ATE375367T1 AT E375367 T1 ATE375367 T1 AT E375367T1 AT 00920640 T AT00920640 T AT 00920640T AT 00920640 T AT00920640 T AT 00920640T AT E375367 T1 ATE375367 T1 AT E375367T1
- Authority
- AT
- Austria
- Prior art keywords
- reactor
- polyethylene
- ethylene
- production
- molecular weight
- Prior art date
Links
- -1 POLYETHYLENE Polymers 0.000 title abstract 3
- 239000004698 Polyethylene Substances 0.000 title abstract 3
- 229920000573 polyethylene Polymers 0.000 title abstract 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 3
- 239000005977 Ethylene Substances 0.000 abstract 3
- 125000004432 carbon atom Chemical group C* 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 1
- 229920001903 high density polyethylene Polymers 0.000 abstract 1
- 239000004700 high-density polyethylene Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 238000005984 hydrogenation reaction Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000012968 metallocene catalyst Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000376 reactant Substances 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
- 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
- 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
-
- 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
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/905—Polymerization in presence of transition metal containing catalyst in presence of hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (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)
- Polymerisation Methods In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99106378A EP1041090A1 (de) | 1999-03-29 | 1999-03-29 | Herstellung von Polyethylen mit breiter Molekulargewichtsverteilung |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE375367T1 true ATE375367T1 (de) | 2007-10-15 |
Family
ID=8237880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT00920640T ATE375367T1 (de) | 1999-03-29 | 2000-03-28 | Herstellung von polyethylen mit breiter molekulargewichtsverteilung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6291601B1 (de) |
EP (2) | EP1041090A1 (de) |
JP (1) | JP4686028B2 (de) |
AT (1) | ATE375367T1 (de) |
AU (1) | AU4114600A (de) |
DE (1) | DE60036695T2 (de) |
WO (1) | WO2000058376A1 (de) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI111954B (fi) * | 2000-02-21 | 2003-10-15 | Borealis Tech Oy | Menetelmä polyeteenipäällysteen valmistamiseksi substraatille |
EP1146077B1 (de) * | 2000-04-13 | 2006-06-07 | Borealis Technology Oy | HDPE Polymerzusammensetzung |
DE60132249D1 (de) | 2000-12-04 | 2008-02-14 | Exxonmobil Chem Patents Inc | Für viskositätsindexverbesserer und schmiermittelzusammensetzungen geeignete ethylencopolymerzusammensetzungen |
WO2003016396A1 (en) * | 2001-08-17 | 2003-02-27 | Dow Global Technologies Inc. | Bimodal polyethylene composition and articles made therefrom |
ES2232767T3 (es) | 2001-08-31 | 2005-06-01 | Dow Global Technologies Inc. | Material de polietileno multimodal. |
US6924340B2 (en) | 2002-04-04 | 2005-08-02 | Equistar Chemicals L.P. | Process for removal of intermediate hydrogen from cascaded polyolefin slurry reactors |
GB0227666D0 (en) | 2002-11-27 | 2003-01-08 | Borealis Tech Oy | Use |
US6921804B2 (en) * | 2003-03-25 | 2005-07-26 | Equistar Chemicals L.P. | Cascaded polyolefin slurry polymerization employing disengagement vessel between reactors |
JP4690425B2 (ja) * | 2005-01-31 | 2011-06-01 | エクソンモービル・ケミカル・パテンツ・インク | ポリマーブレンド及びペレット並びにそれらの製造方法 |
US7786203B2 (en) * | 2005-09-16 | 2010-08-31 | Milliken & Company | Polymer compositions comprising nucleating or clarifying agents and articles made using such compositions |
JP2007177020A (ja) * | 2005-12-27 | 2007-07-12 | Mitsui Chemicals Inc | エチレン系重合体組成物およびこれから得られる成形体 |
JP2007177021A (ja) * | 2005-12-27 | 2007-07-12 | Mitsui Chemicals Inc | 熱可塑性樹脂組成物およびこれから得られる成形体 |
US20070229833A1 (en) * | 2006-02-22 | 2007-10-04 | Allan Rosencwaig | High-sensitivity surface detection system and method |
US7847042B2 (en) | 2006-03-30 | 2010-12-07 | Total Petrochemicals Research Feluy | Slurry polymerisation process of ethylene in the presence of low amount of scavenger |
KR101141494B1 (ko) * | 2007-09-05 | 2012-05-03 | 에스케이이노베이션 주식회사 | 다봉 분자량 분포를 갖는 에틸렌 공중합체 및 이의제조방법 |
US8410329B2 (en) | 2010-10-15 | 2013-04-02 | Chevron Phillips Chemical Company Lp | Ethylene separation |
US9108147B2 (en) | 2010-10-15 | 2015-08-18 | Chevron Phillips Chemical Company Lp | Component separations in polymerization |
US9180405B2 (en) | 2010-10-15 | 2015-11-10 | Chevron Phillips Chemical Company Lp | Ethylene recovery by absorption |
EP2583998B1 (de) * | 2011-10-21 | 2018-02-28 | Borealis AG | Polyethylenzusammensetzung mit sehr schneller Rissausbreitungsbeständigkeit und Druckbeständigkeit |
CN104245088B (zh) | 2012-04-13 | 2016-11-23 | 切弗朗菲利浦化学公司 | 聚合中的组分分离 |
US8987390B2 (en) | 2012-12-18 | 2015-03-24 | Chevron Phillips Chemical Company, Lp | Chain transfer agent removal between polyolefin polymerization reactors |
US9840570B2 (en) | 2013-03-11 | 2017-12-12 | Chevron Phillips Chemical Company, Lp | Medium density polyethylene compositions |
US8822608B1 (en) | 2013-03-12 | 2014-09-02 | Chevron Phillips Chemical Co. LP. | Polyolefin production with different diluents in multiple polymerization reactors |
CN105849138A (zh) | 2013-11-19 | 2016-08-10 | 切弗朗菲利浦化学公司 | 含有具有烯基取代基的硼桥接的环戊二烯基-芴基茂金属化合物的催化剂系统 |
WO2015077100A2 (en) | 2013-11-19 | 2015-05-28 | Chevron Phillips Chemical Company Lp | Boron-bridged bis-indenyl metallocene catalyst systems and polymers produced therefrom |
US9217049B2 (en) | 2013-11-19 | 2015-12-22 | Chevron Phillips Chemical Company Lp | Dual catalyst systems for producing polymers with a broad molecular weight distribution and a uniform short chain branch distribution |
US9540465B2 (en) | 2013-11-19 | 2017-01-10 | Chevron Phillips Chemical Company Lp | Boron-bridged metallocene catalyst systems and polymers produced therefrom |
US9376559B2 (en) | 2013-11-22 | 2016-06-28 | Exxonmobil Chemical Patents Inc. | Reverse staged impact copolymers |
JP6426898B2 (ja) * | 2014-02-25 | 2018-11-21 | 旭化成株式会社 | インフレーションフィルム |
SG11201608527WA (en) * | 2014-04-17 | 2016-11-29 | Chevron Phillips Chemical Co Lp | Boron-bridged metallocene catalyst systems and polymers produced therefrom |
US9469698B2 (en) * | 2014-04-29 | 2016-10-18 | Chevron Phillips Chemical Company Lp | Process for forming polyolefins |
WO2015167807A1 (en) | 2014-04-30 | 2015-11-05 | Tepha, Inc. | Three-dimensional resorbable implants for tissue reinforcement and hernia repair |
WO2018038796A1 (en) | 2016-08-23 | 2018-03-01 | Exxonmobil Chemical Patents Inc. | Olefin polymerization processes |
US10934372B2 (en) | 2016-08-23 | 2021-03-02 | Exxonmobil Chemical Patents Inc. | Olefin polymerization processes |
ES2746570T3 (es) | 2016-09-12 | 2020-03-06 | Thai Polyethylene Co Ltd | Tapón de rosca de polietileno multimodal |
EP3293210B1 (de) | 2016-09-12 | 2019-03-06 | Thai Polyethylene Co., Ltd. | Multimodaler polyethylenfilm |
HUE047431T2 (hu) | 2016-09-12 | 2020-04-28 | Thai Polyethylene Co Ltd | Multimodális polietilén csõ |
ES2767704T3 (es) | 2016-09-12 | 2020-06-18 | Thai Polyethylene Co Ltd | Tubería de polietileno multimodal |
ES2754386T3 (es) | 2016-09-12 | 2020-04-17 | Thai Polyethylene Co Ltd | Película fina de polietileno multimodal |
HUE047204T2 (hu) | 2016-09-12 | 2020-04-28 | Thai Polyethylene Co Ltd | Reaktorrendszer multimodális polietilén polimerizáláshoz |
JP7066682B2 (ja) | 2016-09-12 | 2022-05-13 | タイ ポリエチレン カンパニー リミテッド | 二峰性ポリエチレン組成物及びそれを含むパイプ |
PT3293213T (pt) | 2016-09-12 | 2019-10-29 | Scg Chemicals Co Ltd | Contentor de polietileno multimodal |
EP3293214B1 (de) | 2016-09-12 | 2019-12-25 | Thai Polyethylene Co., Ltd. | Multimodales hochleistungs-polyethylen mit ultrahohem molekulargewicht |
JP6800409B2 (ja) * | 2016-12-21 | 2020-12-16 | 東ソー株式会社 | 超高分子量ポリエチレン系重合体の製造方法 |
WO2019125881A1 (en) | 2017-12-18 | 2019-06-27 | Dow Global Technologies Llc | Zirconocene-titanocene catalyst system |
US11926684B2 (en) | 2018-06-15 | 2024-03-12 | Dow Global Technologies Llc | Cast films comprising bimodal ethylene-based polymers having high molecular weight high density fractions |
US11873377B2 (en) | 2018-06-15 | 2024-01-16 | Dow Global Technologies Llc | Blown films comprising bimodal ethylene-based polymers having high molecular weight high density fractions |
JP7406513B2 (ja) * | 2018-06-15 | 2023-12-27 | ダウ グローバル テクノロジーズ エルエルシー | 高分子量高密度画分を有するバイモーダルエチレン系ポリマーの生成プロセス |
CA3103013A1 (en) | 2018-06-15 | 2019-12-19 | Dow Global Technologies Llc | Bimodal ethylene-based polymers having high molecular weight high density fractions |
SG11202011186PA (en) * | 2018-06-21 | 2020-12-30 | Basell Polyolefine Gmbh | Suspension process for preparing ethylene copolymers in a reactor cascade |
WO2021021792A1 (en) | 2019-07-31 | 2021-02-04 | Dow Global Technologies Llc | Polymerization of ethylene in solution processes using a ziegler-natta catalyst and a hydrogenation catalyst |
CN110590981A (zh) * | 2019-09-05 | 2019-12-20 | 北方华锦化学工业股份有限公司 | 一种用于低熔垂大口径管材料的聚乙烯树脂生产方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4851488A (en) * | 1987-04-23 | 1989-07-25 | Shell Oil Company | Process for altering hydrogenated polymer compositions from high melt flow to low melt flow |
US5276115A (en) * | 1992-12-14 | 1994-01-04 | Phillips Petroleum Company | Mono-1-olefin polymerization in the presence of hydrogen and a cyclopentadienyl compound |
BE1007653A3 (fr) * | 1993-10-26 | 1995-09-05 | Fina Research | Procede de production de polyethylene ayant une distribution large de poids moleculaire. |
JPH09216913A (ja) * | 1995-12-04 | 1997-08-19 | Mitsubishi Chem Corp | オレフィン重合体の製造法 |
US5739220A (en) * | 1997-02-06 | 1998-04-14 | Fina Technology, Inc. | Method of olefin polymerization utilizing hydrogen pulsing, products made therefrom, and method of hydrogenation |
EP0881237A1 (de) * | 1997-05-26 | 1998-12-02 | Fina Research S.A. | Verfahren zur Herstellung von bimodalen Polyolefinen mit Metallocenkatalysatoren in zwei Reaktionszonen |
GB9712663D0 (en) * | 1997-06-16 | 1997-08-20 | Borealis As | Process |
EP0905151A1 (de) * | 1997-09-27 | 1999-03-31 | Fina Research S.A. | Herstellung von Polyäthylen mit einer breiten Molekulargewichtsverteilung |
-
1999
- 1999-03-29 EP EP99106378A patent/EP1041090A1/de not_active Withdrawn
-
2000
- 2000-03-28 EP EP00920640A patent/EP1169362B1/de not_active Expired - Lifetime
- 2000-03-28 DE DE60036695T patent/DE60036695T2/de not_active Expired - Lifetime
- 2000-03-28 WO PCT/EP2000/002876 patent/WO2000058376A1/en active IP Right Grant
- 2000-03-28 AU AU41146/00A patent/AU4114600A/en not_active Abandoned
- 2000-03-28 AT AT00920640T patent/ATE375367T1/de not_active IP Right Cessation
- 2000-03-28 JP JP2000608668A patent/JP4686028B2/ja not_active Expired - Fee Related
- 2000-03-29 US US09/537,885 patent/US6291601B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2000058376A1 (en) | 2000-10-05 |
EP1041090A1 (de) | 2000-10-04 |
DE60036695D1 (de) | 2007-11-22 |
DE60036695T2 (de) | 2008-07-17 |
JP2003507493A (ja) | 2003-02-25 |
EP1169362A1 (de) | 2002-01-09 |
JP4686028B2 (ja) | 2011-05-18 |
EP1169362B1 (de) | 2007-10-10 |
US6291601B1 (en) | 2001-09-18 |
AU4114600A (en) | 2000-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE375367T1 (de) | Herstellung von polyethylen mit breiter molekulargewichtsverteilung | |
ATE263196T1 (de) | Herstellung von polyäthylen mit einer breiten molekulargewichtsverteilung | |
DE69428409D1 (de) | Verfahren zur Herstellung von Polyethylen mit breiter Molekulargewichtsverteilung | |
EP0746574B1 (de) | Polymerisationskatalysatorsysteme, ihre herstellung und ihre verwendung | |
AU5403699A (en) | Dual reactor ethylene polymerization process | |
MY112607A (en) | Process for preparing polyethylene | |
DE3675642D1 (de) | Einsatz von antistatika zur vermeidung von belagbildung bei der herstellung von ethylenpolymerisaten in gasphasenreakatoren. | |
ATE361938T1 (de) | Bimetallkatalysator zur ethylenpolymerisation mit bimodaler molekulargewichtsverteilung, dessen herstellung und verwendung | |
NO179286C (no) | Flertrinnsprosess for fremstilling av polyetylen | |
RU2004102045A (ru) | Статистический сополимер пропилена и способ его получения | |
MX9602864A (es) | Proceso para producir una mezcla de polietileno in situ. | |
GR3029597T3 (en) | Process for preparing an in situ polyethylene blend | |
ATE194994T1 (de) | Polymerisationsverfahren in einer reaktorenreihe | |
MY108973A (en) | Polyethylene copolymer and polymerization process | |
EP0463406A3 (en) | Propylenpolymers with broad molecular weight distribution | |
MX9605121A (es) | Un proceso para preparar la mezcla de polietileno in situ. | |
ATE58545T1 (de) | Einsatz von antistatika zur vermeidung von belagbildung bei der herstellung von ultrahochmolekularem polyethylen in gasphasenreaktoren. | |
US6872363B2 (en) | Production of polyethylene | |
GB0217520D0 (en) | Product | |
ATE225810T1 (de) | Herstellung von polyäthylen mit einer verbesserten widerstandsfähigkeit gegen risse und/oder schlagzähigkeit | |
DE69704501D1 (de) | Herstellung von polyethylen mit bimodaler molekulargewichtsverteilung | |
JPS5632508A (en) | Polymerization of ethylene | |
McDaniel et al. | Linear, Very Low Density Polyethylene Polymerization Process and Products Thereof | |
TH12533A (th) | กรรมวิธีสำหรับการปรับการไหลขณะหลอมของผลิตภัณฑ์ของพอลิเมอร์ของโอลิฟีน | |
BG105084A (en) | Method for copolymerization of ethene with carbon monoxide in the presence of binuclear nickelilide complexes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |