IL138733A0 - High density polyethylene compositions, a process for the production thereof and films prepared thereof - Google Patents

High density polyethylene compositions, a process for the production thereof and films prepared thereof

Info

Publication number
IL138733A0
IL138733A0 IL13873399A IL13873399A IL138733A0 IL 138733 A0 IL138733 A0 IL 138733A0 IL 13873399 A IL13873399 A IL 13873399A IL 13873399 A IL13873399 A IL 13873399A IL 138733 A0 IL138733 A0 IL 138733A0
Authority
IL
Israel
Prior art keywords
complex viscosity
film
production
high density
density polyethylene
Prior art date
Application number
IL13873399A
Other languages
English (en)
Original Assignee
Borealis Tech Oy
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=26160571&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IL138733(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from FI980788A external-priority patent/FI111372B/fi
Priority claimed from FI981034A external-priority patent/FI981034A/fi
Application filed by Borealis Tech Oy filed Critical Borealis Tech Oy
Publication of IL138733A0 publication Critical patent/IL138733A0/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2314/00Polymer mixtures characterised by way of preparation
    • C08L2314/02Ziegler natta catalyst
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y10T428/1345Single layer [continuous layer]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352Polymer or resin containing [i.e., natural or synthetic]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1397Single layer [continuous layer]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
IL13873399A 1998-04-06 1999-04-06 High density polyethylene compositions, a process for the production thereof and films prepared thereof IL138733A0 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI980788A FI111372B (fi) 1998-04-06 1998-04-06 Olefiinien polymerointiin tarkoitettu katalyyttikomponentti, sen valmistus ja käyttö
FI981034A FI981034A (fi) 1998-05-08 1998-05-08 HD-polyeteenikoostumukset ja menetelmä niiden valmistamiseksi
PCT/FI1999/000289 WO1999051649A1 (en) 1998-04-06 1999-04-06 High density polyethylene compositions, a process for the production thereof and films prepared thereof

Publications (1)

Publication Number Publication Date
IL138733A0 true IL138733A0 (en) 2001-10-31

Family

ID=26160571

Family Applications (2)

Application Number Title Priority Date Filing Date
IL13873399A IL138733A0 (en) 1998-04-06 1999-04-06 High density polyethylene compositions, a process for the production thereof and films prepared thereof
IL138733A IL138733A (en) 1998-04-06 2000-09-27 A bimodal film making hdpe composition a process for the production thereof and films prepared thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
IL138733A IL138733A (en) 1998-04-06 2000-09-27 A bimodal film making hdpe composition a process for the production thereof and films prepared thereof

Country Status (9)

Country Link
US (1) US6562905B1 (xx)
EP (1) EP1084162B2 (xx)
AT (1) ATE282052T1 (xx)
AU (1) AU747954B2 (xx)
DE (1) DE69921812T3 (xx)
ES (1) ES2232125T5 (xx)
IL (2) IL138733A0 (xx)
TW (1) TW473502B (xx)
WO (1) WO1999051649A1 (xx)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831270B1 (fr) * 2001-10-19 2005-01-21 Inst Francais Du Petrole Mesures en continu des caracteristiques rheologiques de fluides de puits
EP1333044B2 (en) 2002-02-04 2011-06-15 Borealis Technology Oy Film with high impact strength
SE0201173L (sv) * 2002-04-18 2003-10-19 Borealis Tech Oy Förfarande för strålningsbehandling av etylenpolymerer
CN1213081C (zh) 2002-10-16 2005-08-03 中国石油化工股份有限公司 用于乙烯聚合的催化剂组分、制备方法以及催化剂
US6870010B1 (en) 2003-12-01 2005-03-22 Univation Technologies, Llc Low haze high strength polyethylene compositions
US6878454B1 (en) * 2003-12-05 2005-04-12 Univation Technologies, Llc Polyethylene films
US20050137342A1 (en) * 2003-12-19 2005-06-23 Krishnaswamy Rajendra K. Polyethylene blend films
US7288596B2 (en) * 2003-12-22 2007-10-30 Univation Technologies, Llc Polyethylene compositions having improved tear properties
EP1555292B1 (en) * 2004-01-13 2015-12-23 Borealis Technology Oy Extrusion coating polyethylene
MXPA06010713A (es) * 2004-03-19 2006-12-15 Dow Global Technologies Inc Capas de pelicula hechas de formulaciones de polimero.
EP1600276B1 (en) * 2004-05-24 2008-07-30 Borealis Technology Oy Use of a counter-rotating twin screw extruder for compounding multimodal polymer compositions
KR101215189B1 (ko) 2004-07-07 2012-12-24 다우 글로벌 테크놀로지스 엘엘씨 에틸렌 중합체 조성물의 다단계 제조 방법
US7193017B2 (en) * 2004-08-13 2007-03-20 Univation Technologies, Llc High strength biomodal polyethylene compositions
US7432328B2 (en) * 2005-06-14 2008-10-07 Univation Technologies, Llc Enhanced ESCR bimodal HDPE for blow molding applications
US7868092B2 (en) * 2005-06-14 2011-01-11 Univation Technologies, Llc Bimodal polyethylene compositions for blow molding applications
US8202940B2 (en) * 2004-08-19 2012-06-19 Univation Technologies, Llc Bimodal polyethylene compositions for blow molding applications
US6987152B1 (en) 2005-01-11 2006-01-17 Univation Technologies, Llc Feed purification at ambient temperature
US7312279B2 (en) * 2005-02-07 2007-12-25 Univation Technologies, Llc Polyethylene blend compositions
DE102006013485A1 (de) * 2005-03-28 2006-10-05 Sumitomo Chemical Co., Ltd. Ethylen-Alpha-Olefin-Copolymer
US6995235B1 (en) * 2005-05-02 2006-02-07 Univation Technologies, Llc Methods of producing polyolefins and films therefrom
US7858702B2 (en) * 2005-06-14 2010-12-28 Univation Technologies, Llc Enhanced ESCR bimodal HDPE for blow molding applications
CN101247932B (zh) 2005-07-12 2011-03-30 北方科技有限公司 异向旋转双螺杆挤出机
US7947797B2 (en) 2005-09-14 2011-05-24 Univation Technologies, Llc Method for operating a gas-phase reactor at or near maximum production rates while controlling polymer stickiness
US20070109911A1 (en) * 2005-11-16 2007-05-17 Neubauer Anthony C High speed and direct driven rotating equipment for polyolefin manufacturing
US7595364B2 (en) 2005-12-07 2009-09-29 Univation Technologies, Llc High density polyethylene
EP1834983A1 (en) * 2006-03-14 2007-09-19 Ineos Europe Limited Polymer films
EP1902837A1 (en) * 2006-09-22 2008-03-26 Borealis Technology OY Multilayer film
US7989562B2 (en) 2006-10-03 2011-08-02 Univation Technologies, Llc Method for preventing catalyst agglomeration based on production rate changes
CA2568454C (en) * 2006-11-17 2014-01-28 Nova Chemicals Corporation Barrier film for food packaging
EP1950241A1 (en) 2007-01-25 2008-07-30 Borealis Technology Oy Multimodal medium density polyethylene polymer composition
US7575365B2 (en) * 2007-10-26 2009-08-18 Uop Llc Viscosity control of particle formation by adjusting agitation speed
TW200936564A (en) * 2007-11-15 2009-09-01 Univation Tech Llc Methods for the removal of impurities from polymerization feed streams
US20110256632A1 (en) 2009-01-08 2011-10-20 Univation Technologies, Llc Additive for Polyolefin Polymerization Processes
WO2010080871A1 (en) 2009-01-08 2010-07-15 Univation Technologies, Llc Additive for gas phase polymerization processes
EP2510019A2 (en) 2009-12-07 2012-10-17 Univation Technologies, LLC Methods for reducing static charge of a catalyst and methods for using the catalyst to produce polyolefins
WO2011103280A1 (en) 2010-02-18 2011-08-25 Univation Technologies, Llc Methods for operating a polymerization reactor
KR20130026531A (ko) 2010-02-22 2013-03-13 유니베이션 테크놀로지즈, 엘엘씨 폴리올레핀 생산물을 생산하기 위한 촉매 시스템 및 이의 사용 방법
MY157091A (en) 2010-04-13 2016-04-29 Univation Tech Llc Polymer blends and films made therefrom
WO2012009215A1 (en) 2010-07-16 2012-01-19 Univation Technologies, Llc Systems and methods for measuring static charge on particulates
RU2564301C2 (ru) 2010-07-16 2015-09-27 Юнивейшн Текнолоджиз, Ллк Системы и способы измерения накопления частиц на поверхностях реактора
WO2012015898A1 (en) 2010-07-28 2012-02-02 Univation Technologies, Llc Systems and methods for measuring velocity of a particle/fluid mixture
KR101854945B1 (ko) 2010-12-17 2018-05-04 유니베이션 테크놀로지즈, 엘엘씨 폴리올레핀 퍼지 기체 생성물로부터 탄화수소를 회수하기 위한 시스템 및 방법
BR112013016116B1 (pt) 2010-12-22 2020-04-28 Univation Tech Llc processo de polimerização e sistema catalisador
WO2013028283A1 (en) 2011-08-19 2013-02-28 Univation Technologies, Llc Catalyst systems and methods for using same to produce polyolefin products
EP2750797B1 (en) 2011-11-08 2020-04-01 Univation Technologies, LLC Methods of preparing a catalyst system
CA2800056A1 (en) 2012-12-24 2014-06-24 Nova Chemicals Corporation Polyethylene blend compositions
EP4039366A1 (en) 2012-12-28 2022-08-10 Univation Technologies, LLC Supported catalyst with improved flowability
US9469698B2 (en) * 2014-04-29 2016-10-18 Chevron Phillips Chemical Company Lp Process for forming polyolefins
WO2016118566A1 (en) 2015-01-21 2016-07-28 Univation Technologies, Llc Methods for gel reduction in polyolefins
EP3247548B1 (en) 2015-01-21 2021-09-01 Univation Technologies, LLC Methods for controlling polymer chain scission
US11472166B2 (en) 2016-06-03 2022-10-18 Borealis Ag Multilayer structure
US10975183B2 (en) 2016-09-09 2021-04-13 Exxonmobil Chemical Patents Inc. Pilot plant scale semi-condensing operation
WO2018118258A1 (en) 2016-12-20 2018-06-28 Exxonmobil Chemical Patents Inc. Methods for controlling start up conditions in polymerization processes
CN110431158A (zh) 2017-02-07 2019-11-08 埃克森美孚化学专利公司 减少齐格勒-纳塔催化剂的催化剂活性损失的方法
EP3788081A1 (en) 2018-05-02 2021-03-10 ExxonMobil Chemical Patents Inc. Methods for scale-up from a pilot plant to a larger production facility
US11459408B2 (en) 2018-05-02 2022-10-04 Exxonmobil Chemical Patents Inc. Methods for scale-up from a pilot plant to a larger production facility
EP3861065A1 (en) 2018-10-05 2021-08-11 Dow Global Technologies LLC Dielectrically-enhanced polyethylene formulation
WO2020083902A1 (en) 2018-10-26 2020-04-30 Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. Multi-layered article with improved adhesion
CN116234837A (zh) 2020-07-22 2023-06-06 埃克森美孚化学专利公司 聚烯烃组合物及其制品
US20230416428A1 (en) 2020-11-27 2023-12-28 Borealis Ag Process
EP4259669A1 (en) 2020-12-08 2023-10-18 ExxonMobil Chemical Patents Inc. High density polyethylene compositions with long-chain branching
WO2023081577A1 (en) 2021-11-02 2023-05-11 Exxonmobil Chemical Patents Inc. Polyethylene compositions, articles thereof, and methods thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FI86867C (fi) 1990-12-28 1992-10-26 Neste Oy Flerstegsprocess foer framstaellning av polyeten
EP0778289B1 (en) 1991-03-06 2000-04-12 Mobil Oil Corporation Bimodal ethylene polymers produced in tandem reactors
US6316546B1 (en) * 1991-03-06 2001-11-13 Exxonmobil Oil Corporation Ethylene polymer film resins
EP0533452A1 (en) 1991-03-21 1993-03-24 Mobil Oil Corporation Production of bimodal ethylene polymers in tandem reactors
US5338589A (en) * 1991-06-05 1994-08-16 Hoechst Aktiengesellschaft Polyethylene molding composition
ES2165354T3 (es) 1991-07-24 2002-03-16 Exxonmobil Oil Corp Resinas de polimero de etileno mejoradas para peliculas.
KR930006091A (ko) * 1991-09-18 1993-04-20 제이 이이 휘립프스 폴리에틸렌 블렌드 및 그로부터 제조된 필름, 병 또는 파이프
FI98819C (fi) * 1993-03-26 1997-08-25 Borealis Polymers Oy Prosessi olefiinipolymeerien valmistamiseksi ja prosessilla valmistetut tuotteet
JP3390446B2 (ja) * 1993-10-21 2003-03-24 モービル・オイル・コーポレーション 高分子量成分及び低分子量成分を含む樹脂組成物
FI942949A0 (fi) * 1994-06-20 1994-06-20 Borealis Polymers Oy Prokatalysator foer producering av etenpolymerer och foerfarande foer framstaellning daerav
US6255426B1 (en) * 1997-04-01 2001-07-03 Exxon Chemical Patents, Inc. Easy processing linear low density polyethylene
FI111372B (fi) 1998-04-06 2003-07-15 Borealis Polymers Oy Olefiinien polymerointiin tarkoitettu katalyyttikomponentti, sen valmistus ja käyttö

Also Published As

Publication number Publication date
EP1084162B2 (en) 2016-07-20
DE69921812T2 (de) 2005-11-10
TW473502B (en) 2002-01-21
US6562905B1 (en) 2003-05-13
ES2232125T5 (es) 2016-12-09
ATE282052T1 (de) 2004-11-15
WO1999051649A1 (en) 1999-10-14
DE69921812T3 (de) 2017-01-05
DE69921812D1 (de) 2004-12-16
EP1084162A1 (en) 2001-03-21
AU747954B2 (en) 2002-05-30
AU3151199A (en) 1999-10-25
EP1084162B1 (en) 2004-11-10
ES2232125T3 (es) 2005-05-16
IL138733A (en) 2006-12-10

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