DE60023546D1 - Verfahren zur reduzierung des gewichtsmittel-molekulargewichts und des schmelzindexverhältnisses von polyethylen und polyethylenprodukten - Google Patents

Verfahren zur reduzierung des gewichtsmittel-molekulargewichts und des schmelzindexverhältnisses von polyethylen und polyethylenprodukten

Info

Publication number
DE60023546D1
DE60023546D1 DE60023546T DE60023546T DE60023546D1 DE 60023546 D1 DE60023546 D1 DE 60023546D1 DE 60023546 T DE60023546 T DE 60023546T DE 60023546 T DE60023546 T DE 60023546T DE 60023546 D1 DE60023546 D1 DE 60023546D1
Authority
DE
Germany
Prior art keywords
polyethylene
melt index
index ratio
molecular weight
products
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.)
Expired - Lifetime
Application number
DE60023546T
Other languages
English (en)
Other versions
DE60023546T2 (de
Inventor
Wayne Coe
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.)
Westlake Longview Corp
Original Assignee
Eastman Chemical Co
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 Eastman Chemical Co filed Critical Eastman Chemical Co
Publication of DE60023546D1 publication Critical patent/DE60023546D1/de
Application granted granted Critical
Publication of DE60023546T2 publication Critical patent/DE60023546T2/de
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
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
    • C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation
    • 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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—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
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking
    • 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
    • Y10S525/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S525/938—Polymer degradation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
DE60023546T 1999-11-16 2000-11-16 Verfahren zur reduzierung des gewichtsmittel-molekulargewichts und des schmelzindexverhältnisses von polyethylen und polyethylenprodukten Expired - Lifetime DE60023546T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US44169299A 1999-11-16 1999-11-16
US441692 1999-11-16
US698749 2000-10-27
US09/698,749 US6433133B1 (en) 1999-11-16 2000-10-27 Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products
PCT/US2000/031593 WO2001036495A1 (en) 1999-11-16 2000-11-16 Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products

Publications (2)

Publication Number Publication Date
DE60023546D1 true DE60023546D1 (de) 2005-12-01
DE60023546T2 DE60023546T2 (de) 2006-04-20

Family

ID=27032910

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60023546T Expired - Lifetime DE60023546T2 (de) 1999-11-16 2000-11-16 Verfahren zur reduzierung des gewichtsmittel-molekulargewichts und des schmelzindexverhältnisses von polyethylen und polyethylenprodukten

Country Status (8)

Country Link
US (1) US6433133B1 (de)
EP (1) EP1237947B1 (de)
JP (1) JP5390054B2 (de)
CN (1) CN1183167C (de)
BR (1) BR0015594B1 (de)
DE (1) DE60023546T2 (de)
MX (1) MXPA02004888A (de)
WO (1) WO2001036495A1 (de)

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US6649694B2 (en) * 2001-12-21 2003-11-18 Eastman Chemical Company Process for producing ethylene-α-olefin interpolymer films
US20050288447A1 (en) * 2002-09-09 2005-12-29 Idemitsu Kosan Co., Ltd. Modified propylene based polymer and polyolefin resin composition
FR2879619B1 (fr) 2004-12-16 2007-07-13 Arkema Sa Composition adhesive a base de copolymeres ethyleniques, utilisable pour extrusion-couchage et extrusion-lamination sur divers supports
US7776401B2 (en) * 2005-06-21 2010-08-17 E.I. Du Pont De Nemours And Company Method for treating fabric with viscous liquid polymers
US7456244B2 (en) * 2006-05-23 2008-11-25 Dow Global Technologies High-density polyethylene compositions and method of making the same
CN103079793B (zh) * 2010-07-27 2015-12-09 汉高股份有限及两合公司 通过挤出制备粘合剂的方法
US10053574B2 (en) * 2014-08-15 2018-08-21 Westlake Longview Corporation Maleic anhydride grafted LLDPE having high melt index
DE102014117307A1 (de) * 2014-11-26 2016-06-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mittels eines Modifizierungsreagenzes modifizierte Polymere und Verfahren zu deren Herstellung
CN106349409B (zh) * 2015-07-20 2018-02-13 中国石油化工股份有限公司 一种降低聚合物分子量的方法
KR101995951B1 (ko) * 2019-03-12 2019-07-03 주식회사 라이온켐텍 폴리올레핀 공중합체의 연속식 제조방법
MX2024000062A (es) * 2021-06-22 2024-02-23 Equistar Chem Lp Procesos y productos de reciclado de polimero.
WO2023151995A1 (en) * 2022-02-10 2023-08-17 Totalenergies Onetech Process for treatment of an initial polyethylene-containing material to produce a polyethylene composition for injection molding
US11976184B1 (en) 2022-12-19 2024-05-07 Basell Polyolefine Gmbh Process for modifiyng the melt flow index of low density polyethylene
WO2024132833A1 (en) 2022-12-19 2024-06-27 Basell Polyolefine Gmbh Process for modifiyng the melt flow index of low density polyethylene
EP4389782A1 (de) 2022-12-20 2024-06-26 Basell Polyolefine GmbH Verfahren zur modifizierung des schmelzflussindexes von polyethylen niedriger dichte
EP4389781A1 (de) * 2022-12-20 2024-06-26 Basell Polyolefine GmbH Verfahren zur modifizierung des schmelzflussindexes von polyethylen niedriger dichte
WO2024132834A1 (en) 2022-12-19 2024-06-27 Basell Polyolefine Gmbh Process for modifiyng the melt flow index of low density polyethylene
US11976183B1 (en) 2022-12-19 2024-05-07 Basell Polyolefine Gmbh Process for modifiyng the melt flow index of low density polyethylene

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US2935502A (en) 1958-02-05 1960-05-03 Union Carbide Corp Process for the high temperature, high pressure shear degradation of solid polyethylene
US3087922A (en) 1958-05-13 1963-04-30 Phillips Petroleum Co Method and apparatus for pyrolyzing polymers
US3121070A (en) 1960-05-03 1964-02-11 Eastman Kodak Co Thermally modified polymers of polypropylene and other polymers and process for preparing the same
US3299181A (en) 1960-05-03 1967-01-17 Eastman Kodak Co Thermally modified polyethylene and other polymers and process for preparing the same
US3144436A (en) 1961-01-04 1964-08-11 Du Pont Process for degrading stereoregular polymers
BR6237778D0 (pt) 1961-04-12 1973-01-11 W Taban Processo continuo para produzir um poli-etileno modificado por um composto de acido maleico solido e poli-etileno modificado por composto de acido maleico solido
US3248469A (en) 1961-08-28 1966-04-26 Phillips Petroleum Co High shear visbreaking method and apparatus
US3230288A (en) 1961-09-01 1966-01-18 Phillips Petroleum Co Method of pyrolyzing, blending and extruding a 1-olefin polymer
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US3332926A (en) 1964-02-21 1967-07-25 Allied Chem Thermal degradation of polyolefins in the presence of a metal salt carboxylic acid catalyst
US3243405A (en) 1964-12-02 1966-03-29 Sun Oil Co Processing of ethylene-propylene copolymer
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US3598885A (en) 1968-07-11 1971-08-10 Standard Oil Co Process for preparation of low molecular weight polymers
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US4720540A (en) 1983-02-24 1988-01-19 Amoco Corporation Process for treating thermoplastic polymers
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Also Published As

Publication number Publication date
MXPA02004888A (es) 2002-09-18
US6433133B1 (en) 2002-08-13
BR0015594B1 (pt) 2010-06-15
BR0015594A (pt) 2002-07-09
DE60023546T2 (de) 2006-04-20
EP1237947A1 (de) 2002-09-11
WO2001036495A1 (en) 2001-05-25
CN1183167C (zh) 2005-01-05
JP2003514926A (ja) 2003-04-22
CN1423663A (zh) 2003-06-11
JP5390054B2 (ja) 2014-01-15
EP1237947B1 (de) 2005-10-26

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Legal Events

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8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: WESTLAKE LONGVIEW CORP., HOUSTON, TEX., US