CA2457430A1 - Multimodal polyethylene material - Google Patents

Multimodal polyethylene material Download PDF

Info

Publication number
CA2457430A1
CA2457430A1 CA002457430A CA2457430A CA2457430A1 CA 2457430 A1 CA2457430 A1 CA 2457430A1 CA 002457430 A CA002457430 A CA 002457430A CA 2457430 A CA2457430 A CA 2457430A CA 2457430 A1 CA2457430 A1 CA 2457430A1
Authority
CA
Canada
Prior art keywords
ccm
polyethylene resin
range
ethylene
molecular weight
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.)
Granted
Application number
CA002457430A
Other languages
French (fr)
Other versions
CA2457430C (en
Inventor
Detlef Schramm
Wolfgang Quack
Julien Damen
Pak-Meng Cham
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.)
Dow Global Technologies LLC
Original Assignee
Individual
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=23228883&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2457430(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2457430A1 publication Critical patent/CA2457430A1/en
Application granted granted Critical
Publication of CA2457430C publication Critical patent/CA2457430C/en
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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2308/00—Chemical blending or stepwise polymerisation process with the same catalyst
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2314/00—Polymer mixtures characterised by way of preparation
    • C08L2314/06—Metallocene or single site catalysts

Abstract

The present invention relates to a polyethylene resin having a multimodal molecular weight distribution, said resin being further characterized in that it has a density in the range of from about 0.925 g/ccm to about 0.950 g/ccm, a melt index (I2) In the range of from about 0.05 g/10 min to about 5 g/10 min, and in that it comprises at least one high molecular weight (HMW) ethylene interpolymer and at least a low molecular weight (LMW) ethylene polymer, and a composition comprising such resin. Also provided is a shaped article comprising said resin or composition, in particular a pipe.

Claims (10)

1. A polyethylene resin having a multimodal molecular weight distribution, said resin being further characterized in that it (a) has a density in the range of from 0.92 g/ccm to 0.950 g/ccm, and (b) has a melt index (I2) in the range of from 0.1 g/10 min to 5 g/10 min, and (c) comprises at least one high molecular weight (HMW) ethylene interpolymer and at least a low molecular weight (LMW) ethylene polymer, wherein the HMW
component comprises one or more ethylene interpolymers having a density in the range of from 0.910 g/ccm to 0.935 g/ccm, and a melt index of 1.0 g/10 min or lower, and (d) the LMW component comprises one or more ethylene polymers having a density in the range of from 0.945 g/ccm to 0.965 g/ccm and a melt index in the range of from 2.0 g/10 min to less than 200 g/10 min.
2. The polyethylene resin according to claim 1 which has a bimdoal molecular weight distribution and consists of one unimodal HMW ethylene interpolymer and one unimodal LMW ethylene polymer.
3. The polyethylene resin according to any of claims 1 to 2, wherein the LMW ethylene polymer is an ethylene interpolymer and has a density of 0.960 g/ccm or lower.
4. The polyethylene resin according to any of claims 1 to 3, wherein the HMW and/or the LMW ethylene interpolymer is a homogeneous, substantially linear interpolymer.
5. A composition comprising the multimodal polyethylene resin according to any of claims 1 to 4 and at least one other additional component.
6. The composition according to claim 5 wherein the at least one other additional component is selected from the group consisting of fillers and additives.
7. A shaped article comprising the multimodal polyethylene resin according to any of claims 1 to 5.
8. The shaped article according to claim 7 which is a pipe.
9. The pipe according to claim 8 which is operable at temperatures of above 40° C.
10. The pipe according to claim 8 which is a hot water pipe meeting the performance requirements defined in the ISO 10508 standard.
CA2457430A 2001-08-31 2002-08-28 Multimodal polyethylene material Expired - Lifetime CA2457430C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31640101P 2001-08-31 2001-08-31
US60/316,401 2001-08-31
PCT/US2002/027503 WO2003020821A1 (en) 2001-08-31 2002-08-28 Multimodal polyethylene material

Publications (2)

Publication Number Publication Date
CA2457430A1 true CA2457430A1 (en) 2003-03-13
CA2457430C CA2457430C (en) 2011-10-18

Family

ID=23228883

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2457430A Expired - Lifetime CA2457430C (en) 2001-08-31 2002-08-28 Multimodal polyethylene material

Country Status (14)

Country Link
US (2) US7250473B2 (en)
EP (1) EP1425344B1 (en)
JP (3) JP2005501951A (en)
KR (2) KR100895729B1 (en)
CN (2) CN100362049C (en)
AR (1) AR037142A1 (en)
AT (1) ATE287924T1 (en)
BR (1) BR0212631B1 (en)
CA (1) CA2457430C (en)
DE (1) DE60202780T2 (en)
ES (1) ES2232767T3 (en)
MX (1) MXPA04001928A (en)
PL (1) PL203162B1 (en)
WO (1) WO2003020821A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018166771A1 (en) 2017-03-17 2018-09-20 Sabic Global Technologies B.V. Process for producing pipe by biaxial elongation

Families Citing this family (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6506866B2 (en) * 1994-11-17 2003-01-14 Dow Global Technologies Inc. Ethylene copolymer compositions
JPH09309926A (en) * 1996-05-17 1997-12-02 Dow Chem Co:The Production of ethylene copolymer
EP1417260B1 (en) 2001-08-17 2005-08-03 Dow Global Technologies Inc. Bimodal polyethylene composition and articles made therefrom
CN100362049C (en) * 2001-08-31 2008-01-16 陶氏环球技术公司 Multimodal polyethylene material
SE0103425D0 (en) * 2001-10-16 2001-10-16 Borealis Tech Oy Pipe for hot fluids
EP1319685A1 (en) * 2001-12-14 2003-06-18 ATOFINA Research Physical blends of polyethylenes
BR0317320B1 (en) * 2002-12-24 2013-10-15 Polyethylene composition with multimodal molecular weight distribution, process for its production, and use thereof
MY145338A (en) * 2003-12-04 2012-01-31 Dow Global Technologies Inc Stabilized polyethylene material
FR2865521A1 (en) * 2004-01-22 2005-07-29 Hozelock Tricoflex PLASTIC MULTILAYER SOFT PIPE
ATE350419T1 (en) * 2004-03-12 2007-01-15 Borealis Tech Oy LLDPE PRESSURE PIPE
US7309741B2 (en) * 2004-06-01 2007-12-18 Nova Chemicals (International) S.A. Polyolefin blends and pipe
GB0425444D0 (en) * 2004-11-18 2004-12-22 Solvay Multimodal composition for tapes, fibres and filaments
JP5016258B2 (en) * 2005-05-23 2012-09-05 日本ポリエチレン株式会社 Polyethylene resin, method for producing the same, pipe and joint using the resin
DE102005030941A1 (en) * 2005-06-30 2007-01-11 Basell Polyolefine Gmbh Polyethylene molding compound for the production of injection-molded finished parts
US7312283B2 (en) 2005-08-22 2007-12-25 Chevron Phillips Chemical Company Lp Polymerization catalysts and process for producing bimodal polymers in a single reactor
US7226886B2 (en) 2005-09-15 2007-06-05 Chevron Phillips Chemical Company, L.P. Polymerization catalysts and process for producing bimodal polymers in a single reactor
US7625982B2 (en) * 2005-08-22 2009-12-01 Chevron Phillips Chemical Company Lp Multimodal polyethylene compositions and pipe made from same
CN101273087B (en) * 2005-08-24 2012-04-04 陶氏环球技术有限责任公司 Polyolefin compositions, articles made therefrom and methods for preparing the same
DE102005040390A1 (en) * 2005-08-25 2007-03-01 Basell Polyolefine Gmbh Multi-modal polyethylene moulding material for production of pipes, e.g. water pipes, comprises low-mol. wt. ethylene homopolymer, high-mol. wt. ethylene copolymer and ultrahigh-mol. wt. ethylene copolymer
PL1764389T3 (en) * 2005-09-15 2008-10-31 Borealis Tech Oy Pressureless pipe comprising a multimodal polyethylene composition with an inorganic filler
KR101229632B1 (en) * 2005-09-28 2013-02-05 고에키자이단호진 고쿠사이카가쿠 신고우자이단 Atmosphere controlled joining device, joining method, and electronic device
MX2008012969A (en) * 2006-04-07 2008-12-17 Dow Global Technologies Inc Polyolefin compositions, articles made therefrom and methods for preparing the same.
ATE466043T1 (en) * 2006-10-04 2010-05-15 Borealis Tech Oy LOW-MIGRATION POLYOLEFIN COMPOSITION
ATE469940T1 (en) 2006-10-23 2010-06-15 Dow Global Technologies Inc POLYETHYLENE COMPOSITIONS, PRODUCTION METHOD THEREOF AND ITEMS THEREOF
ES2339963T3 (en) 2006-12-01 2010-05-27 Borealis Technology Oy TUBE THAT HAS AN IMPROVED HIGH TEMPERATURE RESISTANCE.
DE602006010097D1 (en) 2006-12-01 2009-12-10 Borealis Tech Oy Single-site catalyst multimodal polyethylene resin for pipe
EP1941998B2 (en) † 2006-12-21 2016-03-16 Borealis Technology Oy Film
EP1950233A1 (en) * 2007-01-25 2008-07-30 Borealis Technology Oy polymer
EP2052026B2 (en) 2007-05-02 2021-07-14 Dow Global Technologies LLC High-density polyethylene compositions, method of making the same, injection molded articles made therefrom, and method of making such articles
ES2362047T3 (en) 2007-06-13 2011-06-27 Dow Global Technologies Inc. COMPOSITIONS OF POLYETHYLENE, METHODS TO MAKE THEM, AND ARTICLES PREPARED FROM THEM.
US8528580B2 (en) 2007-09-21 2013-09-10 Total Research & Technology Feluy Pipes for transporting water containing chloramine
CN101802026B (en) * 2007-09-21 2013-09-11 道达尔石油化学产品研究弗吕公司 Pipes for transporting water containing chloramine
EP2039720A1 (en) * 2007-09-21 2009-03-25 Total Petrochemicals Research Feluy Pipes for transporting water containing chlorine.
US8459283B2 (en) 2007-09-21 2013-06-11 Total Petrochemicals Research Feluy Pipes for transporting water containing chlorine dioxide
EP2042525A1 (en) * 2007-09-21 2009-04-01 Total Petrochemicals Research Feluy Pipes for transporting water containing chloramine.
EP2067799A1 (en) 2007-12-05 2009-06-10 Borealis Technology OY Polymer
JP5378408B2 (en) * 2007-12-31 2013-12-25 ダウ グローバル テクノロジーズ エルエルシー Ethylene-based polymer composition, method for producing the composition
EP2130859A1 (en) † 2008-06-02 2009-12-09 Borealis AG Polymer compositions having improved homogeneity and odour, a method for making them and pipes made thereof
EP2130862A1 (en) 2008-06-02 2009-12-09 Borealis AG Polymer compositions and pressure-resistant pipes made thereof
EP2130863A1 (en) 2008-06-02 2009-12-09 Borealis AG High density polymer compositions, a method for their preparation and pressure-resistant pipes made therefrom
EP2133367A1 (en) 2008-06-09 2009-12-16 INEOS Manufacturing Belgium NV Novel Copolymers
US9574064B2 (en) * 2008-08-28 2017-02-21 Dow Global Technologies Llc Processes and compositions for injection blow molding
US7816478B2 (en) * 2008-09-03 2010-10-19 Equistar Chemicals, Lp Polyethylene thick film and process for preparing polyethylene
US8957158B2 (en) * 2008-09-25 2015-02-17 Basell Polyolefine Gmbh Impact resistant LLDPE composition and films made thereof
WO2011040753A2 (en) 2009-09-29 2011-04-07 주식회사 엘지화학 Supported hybrid metallocene catalyst comprising three compounds, and method for preparing same
US8716414B2 (en) 2009-11-06 2014-05-06 Lg Chem, Ltd. Mixed metallocene catalyst composition and method for preparing polyolefin using the same
US8784996B2 (en) * 2009-11-24 2014-07-22 Dow Global Technologies Llc Extrusion coating composition
US8679639B2 (en) * 2009-11-24 2014-03-25 Dow Global Technologies Llc Extrusion coating composition
US10208196B2 (en) 2010-03-17 2019-02-19 Borealis Ag Polymer composition for W and C application with advantageous electrical properties
US10811164B2 (en) * 2010-03-17 2020-10-20 Borealis Ag Polymer composition for W and C application with advantageous electrical properties
CN103228441B (en) * 2010-06-28 2015-04-08 陶氏巴西股份有限公司 Single polymer film structures for use in stand-p-pouches
EP2407506A1 (en) * 2010-07-13 2012-01-18 Borealis AG Pipes made from a polyethylene copolymer with slow crack growth
US8829102B2 (en) * 2010-10-27 2014-09-09 Cabot Corporation High loading carbon black masterbatch for pressure pipe applications
JP5648463B2 (en) * 2010-12-17 2015-01-07 東ソー株式会社 Polyethylene pipe
JP5648462B2 (en) * 2010-12-17 2015-01-07 東ソー株式会社 Blow container
WO2012125686A1 (en) 2011-03-14 2012-09-20 Dow Global Technologies Llc Ethylene-based compositions
ES2610557T3 (en) * 2011-07-08 2017-04-28 Dow Global Technologies Llc Composition of polyethylene mixture suitable for blown film, production process thereof and films manufactured therefrom
PL2551294T3 (en) 2011-07-25 2019-06-28 Borealis Ag Use of a polyolefin composition for pipes and fittings with increased resistance to chlorine dioxide
EP2551297B1 (en) * 2011-07-25 2014-03-12 Borealis AG Polyolefin composition with excellent colour and thermal stability as well as oxidation resistance for pipes
DE102012101854A1 (en) * 2012-03-06 2013-09-12 Rehau Ag + Co Use of a polymer material
DE102012101869A1 (en) * 2012-03-06 2013-09-12 Rehau Ag + Co Use of a polymer material
KR101331556B1 (en) 2012-03-30 2013-11-20 대림산업 주식회사 Multimodal polyolefin resin and article prepared with the same
US8895679B2 (en) 2012-10-25 2014-11-25 Chevron Phillips Chemical Company Lp Catalyst compositions and methods of making and using same
US8937139B2 (en) 2012-10-25 2015-01-20 Chevron Phillips Chemical Company Lp Catalyst compositions and methods of making and using same
DE102012111140A1 (en) * 2012-11-20 2014-05-22 Rehau Ag + Co. Use of a first and a second polymer material
US9034991B2 (en) 2013-01-29 2015-05-19 Chevron Phillips Chemical Company Lp Polymer compositions and methods of making and using same
US8877672B2 (en) 2013-01-29 2014-11-04 Chevron Phillips Chemical Company Lp Catalyst compositions and methods of making and using same
CN105143282B (en) 2013-04-30 2018-03-02 陶氏环球技术有限责任公司 Ethylene/alpha-olefin interpolymer composition
BR112016002478A2 (en) * 2013-08-12 2017-08-01 Total Res & Technology Feluy polyethylene for stretch and blow injection molding applications
CN103672197B (en) * 2013-12-24 2016-06-15 贵州蓝图新材料股份有限公司 Multi-layer co-extruded mining conveying pipe of ultra-high molecular weight polyethylene and preparation method thereof
EP3209722A2 (en) 2014-10-21 2017-08-30 Nova Chemicals (International) S.A. Ethylene interpolymer product with dilution index
CA2868640C (en) 2014-10-21 2021-10-26 Nova Chemicals Corporation Solution polymerization process
US9493589B1 (en) * 2015-09-09 2016-11-15 Chevron Phillips Chemical Company Lp Polymers with improved ESCR for blow molding applications
KR20170049272A (en) * 2015-10-28 2017-05-10 대림산업 주식회사 Multimodal polyolefin resin and article prepared with the same
ES2691556T5 (en) * 2016-03-02 2022-09-29 Dow Global Technologies Llc An ethylene/alpha-olefin copolymer composition, and articles comprising the same
JP6651938B2 (en) 2016-03-28 2020-02-19 日本ポリエチレン株式会社 Polyethylene and its molded body
US11299567B2 (en) * 2016-07-14 2022-04-12 Exxonmobil Chemical Patents Inc. Lubricating oil compositions comprising dual metallocene-catalyzed bimodal copolymer compositions useful as viscosity modifiers
ES2919777T3 (en) 2016-11-08 2022-07-28 Univation Tech Llc bimodal polyethylene
CN110036067A (en) * 2016-12-16 2019-07-19 博禄塑料（上海）有限公司 Thermally conductive PE composition for pipe fitting application
US11453157B2 (en) 2017-01-26 2022-09-27 Sabic Global Technologies B.V. Process for producing pipe by biaxial elongation
US10329412B2 (en) 2017-02-16 2019-06-25 Nova Chemicals (International) S.A. Caps and closures
US10442920B2 (en) 2017-04-19 2019-10-15 Nova Chemicals (International) S.A. Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing homogeneous and heterogeneous catalyst formulations
US10442921B2 (en) 2017-04-19 2019-10-15 Nova Chemicals (International) S.A. Means for increasing the molecular weight and decreasing the density employing mixed homogeneous catalyst formulations
EP3676298A1 (en) 2017-08-28 2020-07-08 Univation Technologies, LLC Bimodal polyethylene
EP3681946A1 (en) 2017-09-11 2020-07-22 Univation Technologies, LLC Carbon black-containing bimodal polyethylene composition
KR102128597B1 (en) * 2017-09-15 2020-06-30 주식회사 엘지화학 Assessment method for melt blown property of plastic form
CN110603129B (en) * 2017-09-29 2021-09-10 Lg化学株式会社 Method for selecting material of injection molded article and method for manufacturing injection molded article
US10995166B2 (en) 2017-11-07 2021-05-04 Nova Chemicals (International) S.A. Ethylene interpolymer products and films
US10683376B2 (en) 2017-11-07 2020-06-16 Nova Chemicals (International) S.A. Manufacturing ethylene interpolymer products at higher production rate
CN111356869B (en) 2017-11-17 2022-02-22 埃克森美孚化学专利公司 PE-RT pipeline and manufacturing method thereof
KR101904496B1 (en) * 2017-12-13 2018-11-28 대림산업 주식회사 Multimodal polyolefin resin and article prepared with the same
AR114620A1 (en) * 2017-12-15 2020-09-30 Dow Global Technologies Llc FORMULATION CONTAINING A HIGH-DENSITY POLYETHYLENE COMPOSITION AND MICRO-IRRIGATION DRIP TAPE CONTAINING IT
CN111836838B (en) 2018-03-28 2023-05-05 尤尼威蒂恩技术有限责任公司 Multimodal polyethylene composition
US10882987B2 (en) 2019-01-09 2021-01-05 Nova Chemicals (International) S.A. Ethylene interpolymer products having intermediate branching
US11846370B2 (en) 2019-03-26 2023-12-19 Titeflex Corporation Multilayer composite pipe and pipe assemblies including reflective insulation
US11046843B2 (en) 2019-07-29 2021-06-29 Nova Chemicals (International) S.A. Ethylene copolymers and films with excellent sealing properties
WO2021084416A1 (en) 2019-11-01 2021-05-06 Nova Chemicals (International) S.A. Linear high-density polyethylene with high toughness and high escr
CA3193704A1 (en) 2020-09-30 2022-04-07 Rujul M. MEHTA Bimodal polyethylene copolymers for pe-80 pipe applications
US20230407068A1 (en) * 2020-12-18 2023-12-21 Dow Global Technologies Llc Compositions of low and high melt index ethylene/alpha-olefin interpolymers for improved mechanical properties

Family Cites Families (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US549874A (en) * 1895-11-12 Electric speed-regulator
CA849081A (en) 1967-03-02 1970-08-11 Du Pont Of Canada Limited PRODUCTION OF ETHYLENE/.alpha.-OLEFIN COPOLYMERS OF IMPROVED PHYSICAL PROPERTIES
US3914342A (en) 1971-07-13 1975-10-21 Dow Chemical Co Ethylene polymer blend and polymerization process for preparation thereof
US4363746A (en) 1979-05-29 1982-12-14 Phillips Petroleum Company Composition of matter and method of preparing same, catalyst, method of producing the catalyst and polymerization process employing the catalyst
US4325837A (en) 1980-08-12 1982-04-20 Phillips Petroleum Company Catalyst, method of producing the catalyst, and polymerization process employing the catalyst
US4438238A (en) 1981-01-30 1984-03-20 Sumitomo Chemical Company, Limited Low density copolymer composition of two ethylene-α-olefin copolymers
US4461873A (en) * 1982-06-22 1984-07-24 Phillips Petroleum Company Ethylene polymer blends
US4547551A (en) 1982-06-22 1985-10-15 Phillips Petroleum Company Ethylene polymer blends and process for forming film
US4937299A (en) 1983-06-06 1990-06-26 Exxon Research & Engineering Company Process and catalyst for producing reactor blend polyolefins
US4798081A (en) 1985-11-27 1989-01-17 The Dow Chemical Company High temperature continuous viscometry coupled with analytic temperature rising elution fractionation for evaluating crystalline and semi-crystalline polymers
US5055438A (en) 1989-09-13 1991-10-08 Exxon Chemical Patents, Inc. Olefin polymerization catalysts
DE3723526A1 (en) 1987-07-16 1989-01-26 Hoechst Ag METHOD FOR PRODUCING A POLYOLEFIN WITH A WIDE MOLE WEIGHT DISTRIBUTION
US4824912A (en) 1987-08-31 1989-04-25 Mobil Oil Corporation Terblends and films of LLDPE, LMW-HDPE and HMW-HDPE
US5218071A (en) 1988-12-26 1993-06-08 Mitsui Petrochemical Industries, Ltd. Ethylene random copolymers
NZ235032A (en) 1989-08-31 1993-04-28 Dow Chemical Co Constrained geometry complexes of titanium, zirconium or hafnium comprising a substituted cyclopentadiene ligand; use as olefin polymerisation catalyst component
US5064802A (en) 1989-09-14 1991-11-12 The Dow Chemical Company Metal complex compounds
JPH03115445A (en) 1989-09-29 1991-05-16 Nippon Petrochem Co Ltd Ethylenic polymer composition
US5272236A (en) 1991-10-15 1993-12-21 The Dow Chemical Company Elastic substantially linear olefin polymers
JP3045548B2 (en) 1990-12-28 2000-05-29 日本石油化学株式会社 Polyethylene composition
US5089321A (en) 1991-01-10 1992-02-18 The Dow Chemical Company Multilayer polyolefinic film structures having improved heat seal characteristics
US5189192A (en) 1991-01-16 1993-02-23 The Dow Chemical Company Process for preparing addition polymerization catalysts via metal center oxidation
EP0503791B1 (en) * 1991-03-06 1997-04-16 Mobil Oil Corporation Process for producing bimodal ethylene polymers in tandem reactors
US6194520B1 (en) 1991-03-06 2001-02-27 Mobil Oil Corporation Ethylene polymer resins for blow molding applications
ES2165354T3 (en) 1991-07-24 2002-03-16 Exxonmobil Oil Corp IMPROVED ETHYLENE POLYMER RESINS FOR FILMS.
KR930006090A (en) 1991-09-18 1993-04-20 제이 이이 휘립프스 Ethylene Polymer Composition
GB9120971D0 (en) 1991-10-03 1991-11-13 Du Pont Canada Control of a solution process for polymerization of ethylene
GB9121019D0 (en) 1991-10-03 1991-11-13 Du Pont Canada Activation of catalyst in ethylene polymerization at high temperatures
GB9121033D0 (en) 1991-10-03 1991-11-13 Du Pont Canada Catalyst for ethylene polymerization at high temperatures
US5582923A (en) 1991-10-15 1996-12-10 The Dow Chemical Company Extrusion compositions having high drawdown and substantially reduced neck-in
US5525695A (en) 1991-10-15 1996-06-11 The Dow Chemical Company Elastic linear interpolymers
US5278272A (en) 1991-10-15 1994-01-11 The Dow Chemical Company Elastic substantialy linear olefin polymers
KR100262023B1 (en) 1992-01-06 2000-07-15 그레이스 스티븐 에스. Improved catalyst composition
US5374696A (en) 1992-03-26 1994-12-20 The Dow Chemical Company Addition polymerization process using stabilized reduced metal catalysts
DE69329313T3 (en) 1992-06-17 2008-07-31 Mitsui Chemicals, Inc. ethylene copolymer
BE1006439A3 (en) 1992-12-21 1994-08-30 Solvay Societe Annonyme Method for preparing a composition of polymers of ethylene, polymer composition and use of ethylene.
CA2153978C (en) 1993-01-29 2005-07-12 Brian W. S. Kolthammer Ethylene interpolymerizations
KR100326775B1 (en) 1993-04-28 2002-10-25 더 다우 케미칼 캄파니 Molded articles made from ethylene polymer blends
US5470993A (en) 1993-06-24 1995-11-28 The Dow Chemical Company Titanium(II) or zirconium(II) complexes and addition polymerization catalysts therefrom
US5408004A (en) 1993-08-17 1995-04-18 The Dow Chemical Company Polyolefin blends and their solid state processing
US5562619A (en) * 1993-08-19 1996-10-08 Boston Scientific Corporation Deflectable catheter
JP3390446B2 (en) * 1993-10-21 2003-03-24 モービル・オイル・コーポレーション Resin composition containing high molecular weight component and low molecular weight component
US5631069A (en) 1994-05-09 1997-05-20 The Dow Chemical Company Medium modulus molded material comprising substantially linear polyethlene and fabrication method
JP3751318B2 (en) 1994-05-09 2006-03-01 ザ ダウ ケミカル カンパニー Medium modulus film containing polyethylene that is substantially linear and method of manufacture
US5858491A (en) 1994-11-02 1999-01-12 Dow Belgium Hollow molded articles and process for manufacturing them
FI96216C (en) 1994-12-16 1996-05-27 Borealis Polymers Oy Process for the production of polyethylene
DE19515678B4 (en) 1995-04-28 2007-12-27 Basell Polyolefine Gmbh Polyethylene tube with improved mechanical properties
SE504455C2 (en) * 1995-07-10 1997-02-17 Borealis Polymers Oy Cable sheath composition, its use and methods for its manufacture
DE69633436T3 (en) 1995-07-24 2016-06-16 Mitsui Chemicals, Inc. Ethylene copolymer composition
US5925448A (en) 1995-11-07 1999-07-20 Union Carbide Chemicals & Plastics Technology Corporation Film extruded from a blend of ethylene copolymers
JPH09194643A (en) 1996-01-18 1997-07-29 Mitsubishi Chem Corp Ethylene resin composition having excellent hot water resistance
DE19604520A1 (en) 1996-02-08 1997-08-14 Buna Sow Leuna Olefinverb Gmbh Polyethylene blend
US5665818A (en) * 1996-03-05 1997-09-09 Union Carbide Chemicals & Plastics Technology Corporation High activity staged reactor process
JP3133692B2 (en) 1997-02-25 2001-02-13 花王株式会社 Polyolefin resin composition and molded article using the same
EP0881237A1 (en) 1997-05-26 1998-12-02 Fina Research S.A. Process to produce bimodal polyolefins with metallocene catalysts using two reaction zones
BE1011333A3 (en) 1997-08-20 1999-07-06 Solvay Method of composition ethylene polymers.
DE69821511T2 (en) 1997-09-19 2004-07-08 The Dow Chemical Co., Midland ETHYLENE-COPOLYMER MIXTURES WITH NARROW MOLECULAR WEIGHT DISTRIBUTION AND OPTIMIZED COMPOSITION, METHOD FOR THEIR PRODUCTION AND THEIR USE
EP0905153B1 (en) 1997-09-27 2004-03-31 ATOFINA Research Production of polyethylene having a broad molecular weight distribution
JPH11106574A (en) 1997-10-07 1999-04-20 Asahi Chem Ind Co Ltd High-density ethylene polymer composition excellent in balance among rigidity, escr, and impact resistance
SE520000C2 (en) 1998-01-02 2003-05-06 Borealis Polymers Oy Insulating composition for an electric power cable and power cable comprising the insulating composition
SE513632C2 (en) 1998-07-06 2000-10-09 Borealis Polymers Oy Multimodal polyethylene composition for pipes
DE19833858C2 (en) 1998-07-28 2000-06-08 Elenac Gmbh Low-odor polyethylene blends
EP0989141A1 (en) 1998-09-25 2000-03-29 Fina Research S.A. Production of multimodal polyethelene
SE9803501D0 (en) 1998-10-14 1998-10-14 Borealis Polymers Oy Polymer composition for pipes
DE19849426A1 (en) 1998-10-27 2000-05-04 Elenac Gmbh Bimodal polyethylene blends with high mixing quality
FI990003A (en) 1999-01-04 2000-07-05 Borealis Polymers Oy Polymer composition, process for the preparation thereof and films made therefrom
EP1041090A1 (en) 1999-03-29 2000-10-04 Fina Research S.A. Production of polyethylene having a broad molecular weight distribution
DE19929812A1 (en) 1999-06-30 2001-01-04 Elenac Gmbh Polyethylene molding compound and pipe made from it with improved mechanical properties
CA2285723C (en) 1999-10-07 2009-09-15 Nova Chemicals Corporation Multimodal polyolefin pipe
US6403717B1 (en) * 2000-07-12 2002-06-11 Univation Technologies, Llc Ethylene inter-polymer blends
EP1201711A1 (en) 2000-10-27 2002-05-02 ATOFINA Research Polyethylene pipe resins and production thereof
EP1417260B1 (en) 2001-08-17 2005-08-03 Dow Global Technologies Inc. Bimodal polyethylene composition and articles made therefrom
CN100362049C (en) 2001-08-31 2008-01-16 陶氏环球技术公司 Multimodal polyethylene material
SE0103425D0 (en) 2001-10-16 2001-10-16 Borealis Tech Oy Pipe for hot fluids
KR100646249B1 (en) 2004-04-08 2006-11-23 주식회사 엘지화학 Polyethylene Pipe Having Good Melt Processibilty and High Resistance to Stress and Method for Preparing the Same Using Metallocene Catalysts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018166771A1 (en) 2017-03-17 2018-09-20 Sabic Global Technologies B.V. Process for producing pipe by biaxial elongation

Also Published As

Publication number Publication date
JP5596280B2 (en) 2014-09-24
DE60202780T2 (en) 2005-06-30
CN101230161A (en) 2008-07-30
KR20080068916A (en) 2008-07-24
BR0212631B1 (en) 2014-10-21
PL203162B1 (en) 2009-08-31
EP1425344A1 (en) 2004-06-09
JP2014001400A (en) 2014-01-09
AR037142A1 (en) 2004-10-27
CN100362049C (en) 2008-01-16
KR100895729B1 (en) 2009-04-30
PL368461A1 (en) 2005-03-21
CA2457430C (en) 2011-10-18
US20070112160A1 (en) 2007-05-17
US20040266966A1 (en) 2004-12-30
BR0212631A (en) 2004-08-24
DE60202780D1 (en) 2005-03-03
CN101230161B (en) 2011-06-01
CN1545536A (en) 2004-11-10
JP2005501951A (en) 2005-01-20
JP2009062539A (en) 2009-03-26
MXPA04001928A (en) 2004-07-23
US8101687B2 (en) 2012-01-24
EP1425344B1 (en) 2005-01-26
KR100872219B1 (en) 2008-12-05
WO2003020821A1 (en) 2003-03-13
KR20040029440A (en) 2004-04-06
ATE287924T1 (en) 2005-02-15
US7250473B2 (en) 2007-07-31
ES2232767T3 (en) 2005-06-01

Similar Documents

Publication Publication Date Title
CA2457430A1 (en) Multimodal polyethylene material
PL368611A1 (en) Bimodal polyethylene composition and articles made therefrom
EP0808854B1 (en) Polyethylene resin and pipe and pipe joint made by using the same
WO2007130553A3 (en) High-density polyethylene compositions, method of making the same, wire and cable jackets made therefrom, and method of making such wire and cable jackets
DE60108075D1 (en) PEDESTAL PROPYLENE COPOLYMERISATE
EP0702032A3 (en) Cross-linked foam structures of essentially linear polyolefines and process for manufacture
WO2003051937A8 (en) Physical blend of polyethylenes
CA2434645A1 (en) Process aid for melt processable polymers
CA2225858A1 (en) Cable-sheathing composition
CA2461667A1 (en) Multimodal polyethylene pipe for hot fluids
AU6560800A (en) Flexible compositions based on propylene polymers
KR20040024850A (en) Melt-processible, wear resistant polyethylene
CA2248654A1 (en) Ethylene polymer composition for cable applications
KR101019656B1 (en) Resin composition of elastomer and metallocene polyethylene and film using the same
WO2020109556A1 (en) Polymer composition and process for making the same
AU4620499A (en) Polymer compositions
US5922257A (en) Process to produce an article that has a granite-like appearance and said article
TH60788A (en) Various forms of polyethylene pipes
TH75433B (en) Various forms of polyethylene pipes
CA2171019A1 (en) Improved in situ blends of bimodal molecular weight distribution

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20220829