CA2171019C - Melanges de polyolefines a repartition bimodale de poids moleculaires - Google Patents

Melanges de polyolefines a repartition bimodale de poids moleculaires Download PDF

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Publication number
CA2171019C
CA2171019C CA002171019A CA2171019A CA2171019C CA 2171019 C CA2171019 C CA 2171019C CA 002171019 A CA002171019 A CA 002171019A CA 2171019 A CA2171019 A CA 2171019A CA 2171019 C CA2171019 C CA 2171019C
Authority
CA
Canada
Prior art keywords
resin
molecular weight
resin according
ethylene
metallocene
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 - Fee Related
Application number
CA002171019A
Other languages
English (en)
Other versions
CA2171019A1 (fr
Inventor
Thomas Edward Nowlin
Sandra Denise Schregenberger
Pradeep Pandurang Shirodkar
Grace Onkee Tsien
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.)
ExxonMobil Oil Corp
Original Assignee
Mobil Oil Corp
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 Mobil Oil Corp filed Critical Mobil Oil Corp
Priority claimed from PCT/US1994/012103 external-priority patent/WO1995011264A1/fr
Publication of CA2171019A1 publication Critical patent/CA2171019A1/fr
Application granted granted Critical
Publication of CA2171019C publication Critical patent/CA2171019C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • 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
    • 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

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

Abstract

On produit des résines constituées de mélanges, obtenus in situ par catalyse, de résines d'éthylène à large répartition bimodale de poids moléculaires. De telles résines se caractérisent par le mélange d'une composante à faible poids moléculaire et d'une composante à poids moléculaire élevé, la fraction du poids de cette dernière dépassant zéro. De façon générale, les rapports des poids de ces deux composantes peuvent être modulés dans une très large fourchette. Une telle résine présente une réparation de poids moléculaires caractérisée par MFR ou Mw/Mn. Les résines à répartition bimodale de poids moléculaires peuvent s'utiliser en couches sur des équipements existants et offrir une bonne aptitude à la mise en oeuvre pour la production de lamelles de soufflage, ainsi que des films à FQR excellent. Ces résines présentent une tendance réduite à l'accumulation en bord de filière et au dégagement de fumée dans les utilisations directes.
CA002171019A 1993-10-21 1994-10-20 Melanges de polyolefines a repartition bimodale de poids moleculaires Expired - Fee Related CA2171019C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13913293A 1993-10-21 1993-10-21
US08/139,132 1993-10-21
PCT/US1994/012103 WO1995011264A1 (fr) 1993-10-21 1994-10-20 Melanges de polyolefines a repartition bimodale de poids moleculaires

Publications (2)

Publication Number Publication Date
CA2171019A1 CA2171019A1 (fr) 1995-04-27
CA2171019C true CA2171019C (fr) 2007-05-29

Family

ID=38146240

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002171019A Expired - Fee Related CA2171019C (fr) 1993-10-21 1994-10-20 Melanges de polyolefines a repartition bimodale de poids moleculaires

Country Status (1)

Country Link
CA (1) CA2171019C (fr)

Also Published As

Publication number Publication date
CA2171019A1 (fr) 1995-04-27

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