CN1183167C - 降低聚乙烯和聚乙烯产物的重均分子量和熔体指数比率的方法 - Google Patents

降低聚乙烯和聚乙烯产物的重均分子量和熔体指数比率的方法 Download PDF

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Publication number
CN1183167C
CN1183167C CNB008184100A CN00818410A CN1183167C CN 1183167 C CN1183167 C CN 1183167C CN B008184100 A CNB008184100 A CN B008184100A CN 00818410 A CN00818410 A CN 00818410A CN 1183167 C CN1183167 C CN 1183167C
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China
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polyethylene
mixture
ethylene copolymer
multipolymer
molecular weight
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Expired - Lifetime
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CNB008184100A
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English (en)
Chinese (zh)
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CN1423663A (zh
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S・W・科
S·W·科
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Westlake Longview Corp
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Eastman Chemical Co
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    • 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

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  • 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)
CNB008184100A 1999-11-16 2000-11-16 降低聚乙烯和聚乙烯产物的重均分子量和熔体指数比率的方法 Expired - Lifetime CN1183167C (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US44169299A 1999-11-16 1999-11-16
US09/441,692 1999-11-16
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
US09/698,749 2000-10-27

Publications (2)

Publication Number Publication Date
CN1423663A CN1423663A (zh) 2003-06-11
CN1183167C true CN1183167C (zh) 2005-01-05

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CNB008184100A Expired - Lifetime CN1183167C (zh) 1999-11-16 2000-11-16 降低聚乙烯和聚乙烯产物的重均分子量和熔体指数比率的方法

Country Status (8)

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

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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
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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
JP2024526561A (ja) * 2021-06-22 2024-07-19 イクイスター・ケミカルズ・エルピー ポリマーリサイクレートプロセスおよび製品
CN118804834A (zh) 2022-02-10 2024-10-18 道达尔能源一技术 用于注塑的聚乙烯组合物
EP4389782A1 (en) 2022-12-20 2024-06-26 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
CN120303310A (zh) 2022-12-19 2025-07-11 巴塞尔聚烯烃股份有限公司 用于改性低密度聚乙烯的熔体流动指数的工艺
EP4389781A1 (en) * 2022-12-20 2024-06-26 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
US11976184B1 (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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Also Published As

Publication number Publication date
DE60023546D1 (de) 2005-12-01
CN1423663A (zh) 2003-06-11
JP5390054B2 (ja) 2014-01-15
WO2001036495A1 (en) 2001-05-25
US6433133B1 (en) 2002-08-13
EP1237947B1 (en) 2005-10-26
BR0015594A (pt) 2002-07-09
MXPA02004888A (es) 2002-09-18
JP2003514926A (ja) 2003-04-22
BR0015594B1 (pt) 2010-06-15
EP1237947A1 (en) 2002-09-11
DE60023546T2 (de) 2006-04-20

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Owner name: WESTLAKE LONGVIEW CORPORATION

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Effective date: 20070518

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Patentee after: Westlake Longview Corp.

Address before: Tennessee

Patentee before: Eastman Chem Co.

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Granted publication date: 20050105