ATE497992T1 - MULTIMODAL POLYETHYLENE COMPOSITION, MIXED CATALYSAOTR AND METHOD FOR PREPARING THE COMPOSITION - Google Patents

MULTIMODAL POLYETHYLENE COMPOSITION, MIXED CATALYSAOTR AND METHOD FOR PREPARING THE COMPOSITION

Info

Publication number
ATE497992T1
ATE497992T1 AT07856840T AT07856840T ATE497992T1 AT E497992 T1 ATE497992 T1 AT E497992T1 AT 07856840 T AT07856840 T AT 07856840T AT 07856840 T AT07856840 T AT 07856840T AT E497992 T1 ATE497992 T1 AT E497992T1
Authority
AT
Austria
Prior art keywords
ethylene polymer
composition
molecular weight
polymer fraction
comonomer content
Prior art date
Application number
AT07856840T
Other languages
German (de)
Inventor
Jennifer Kipke
Shahram Mihan
Rainer Karer
Harald Schmitz
Original Assignee
Basell Polyolefine Gmbh
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
Application filed by Basell Polyolefine Gmbh filed Critical Basell Polyolefine Gmbh
Priority claimed from PCT/EP2007/011113 external-priority patent/WO2008077530A2/en
Application granted granted Critical
Publication of ATE497992T1 publication Critical patent/ATE497992T1/en

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

A multimodal polyethylene composition, in particular suitable for the preparation of films, but also textile articles, blow molded articles and injection molded articles is described. The polyethylene composition of the invention comprises at least three ethylene polymer fractions having distinct molecular weights or comonomer contents, said at least three ethylene polymer fractions comprising at least one first ethylene polymer fraction having a first molecular weight, a first comonomer content lower than a predetermined value and a first density; at least one second ethylene polymer fraction having a second molecular weight higher than said first molecular weight, a second comonomer content higher than said first comonomer content, and a second density; and at least one third ethylene polymer fraction having a third molecular weight higher than said first molecular weight, a third comonomer content lower than a predetermined value, and a third density; wherein said at least one first ethylene polymer fraction and said at least third ethylene polymer fraction are prepared by the use of a first and, respectively, third catalyst and said at least one second ethylene polymer fraction is prepared by the use of a second catalyst of the single site type. The films prepared from the composition of the invention have improved water vapor barrier properties. Furthermore, a mixed catalyst system comprising at least three catalyst components and a process particularly suitable to prepare the composition of the invention are described.
AT07856840T 2006-12-22 2007-12-18 MULTIMODAL POLYETHYLENE COMPOSITION, MIXED CATALYSAOTR AND METHOD FOR PREPARING THE COMPOSITION ATE497992T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06026752 2006-12-22
US92136607P 2007-04-02 2007-04-02
PCT/EP2007/011113 WO2008077530A2 (en) 2006-12-22 2007-12-18 Multimodal polyethylene composition, mixed catalyst and process for preparing the composition

Publications (1)

Publication Number Publication Date
ATE497992T1 true ATE497992T1 (en) 2011-02-15

Family

ID=43568382

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07856840T ATE497992T1 (en) 2006-12-22 2007-12-18 MULTIMODAL POLYETHYLENE COMPOSITION, MIXED CATALYSAOTR AND METHOD FOR PREPARING THE COMPOSITION

Country Status (4)

Country Link
CN (1) CN102083902B (en)
AT (1) ATE497992T1 (en)
DE (1) DE602007012474D1 (en)
TW (1) TW200838913A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2011822A1 (en) * 2007-07-04 2009-01-07 Borealis Technology Oy Multimodal polyethylene co-polymer resin composition, a preparation process therefore and a polymeric product comprising the same
EP2592111A1 (en) * 2011-11-11 2013-05-15 Basell Poliolefine Italia S.r.l. Polymer composition for bumpers and interiors and polyethylene-based resin precursor
JP5840743B2 (en) * 2013-09-05 2016-01-06 旭化成ケミカルズ株式会社 Polyethylene resin composition, microporous film and method for producing the same, and battery separator
EP3464457B2 (en) * 2016-05-31 2025-04-09 Borealis AG Polymer composition and a process for production of the polymer composition
KR102073252B1 (en) 2016-12-05 2020-02-04 주식회사 엘지화학 Catalyst composition for polymerizing olefin copolymer and preparation method of olefin copolymer
EP3592780B1 (en) * 2017-03-09 2025-07-23 ExxonMobil Chemical Patents Inc. Process for producing polyethylene
EP3732215B8 (en) 2017-12-26 2022-04-27 Dow Global Technologies LLC Dual reactor solution process for the production of multimodal ethylene-based polymer
KR102647144B1 (en) * 2017-12-26 2024-03-15 다우 글로벌 테크놀로지스 엘엘씨 Composition comprising multimodal ethylene-based polymer and low-density polyethylene (LDPE)
ES2946586T3 (en) 2017-12-26 2023-07-21 Dow Global Technologies Llc Procedure for the production of multimodal ethylene-based polymers
BR112020012842B1 (en) 2017-12-26 2024-01-02 Dow Global Technologies Llc METHOD FOR PRODUCING A TRIMODAL POLYMER IN A SOLUTION POLYMERIZATION PROCESS
JP7278286B2 (en) 2017-12-26 2023-05-19 ダウ グローバル テクノロジーズ エルエルシー Multimodal ethylene-based polymer composition with improved toughness
CN116355305B (en) * 2021-12-28 2025-11-21 中国石油天然气股份有限公司 Polyethylene base resin composition for film and preparation method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940008983B1 (en) * 1988-06-23 1994-09-28 도오소오 가부시끼가이샤 Process for the preparation of polyethylene
WO2000032643A1 (en) * 1998-12-02 2000-06-08 Idemitsu Petrochemical Co., Ltd. Catalyst for olefin polymerization and process for producing olefin polymer with the catalyst
US6218472B1 (en) * 1999-09-24 2001-04-17 Fina Research, S.A. Production of multimodal polyethylene
DE10259491A1 (en) * 2002-12-19 2004-07-01 Basell Polyolefine Gmbh Polyethylene moulding material for production of blow-moulded containers comprises low-mol. wt. ethylene homopolymer, high-mol. wt. copolymer of ethylene and 4-8C olefin, and ultrahigh-mol. wt. ethylene copolymer
DE10261064A1 (en) * 2002-12-24 2004-07-08 Basell Polyolefine Gmbh Polyethylene molding composition with multimodal molecular weight distribution, used for making large blow-molded L-ring containers, contains low-molecular homopolyethylene and high- and ultrahigh-molecular copolyethylenes
DE10261065A1 (en) * 2002-12-24 2004-07-08 Basell Polyolefine Gmbh Polyethylene molding composition with multimodal molecular weight distribution, used for making large blow-molded containers, contains low-molecular homo polyethylene and high- and ultrahigh-molecular co polyethylenes
DE10261066A1 (en) * 2002-12-24 2004-07-08 Basell Polyolefine Gmbh Polyethylene molding composition with multimodal molecular weight distribution, used for making blow-molded cans, contains low-molecular homo polyethylene and high- and ultrahigh-molecular co polyethylenes
DE102005009895A1 (en) * 2005-03-01 2006-09-07 Basell Polyolefine Gmbh Polyethylene molding compound for producing blown films with improved mechanical properties
DE102005009916A1 (en) * 2005-03-01 2006-09-07 Basell Polyolefine Gmbh Polyethylene molding compound for producing blown films with improved mechanical properties
DE102005009896A1 (en) * 2005-03-01 2006-09-07 Basell Polyolefine Gmbh Polyethylene molding compound for producing blown films with improved mechanical properties

Also Published As

Publication number Publication date
DE602007012474D1 (en) 2011-03-24
CN102083902A (en) 2011-06-01
CN102083902B (en) 2014-08-13
TW200838913A (en) 2008-10-01

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