BR9801503A - Srb trans desordenada com baixo teor de microestrutura de vinila - Google Patents

Srb trans desordenada com baixo teor de microestrutura de vinila

Info

Publication number
BR9801503A
BR9801503A BR9801503-6A BR9801503A BR9801503A BR 9801503 A BR9801503 A BR 9801503A BR 9801503 A BR9801503 A BR 9801503A BR 9801503 A BR9801503 A BR 9801503A
Authority
BR
Brazil
Prior art keywords
styrene
trans
low vinyl
catalyst system
content
Prior art date
Application number
BR9801503-6A
Other languages
English (en)
Inventor
Adel Farhan Halasa
Wen-Liang Hsu
Laurie Elizabeth Austin
Original Assignee
Goodyear Tire & Rubber
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 Goodyear Tire & Rubber filed Critical Goodyear Tire & Rubber
Publication of BR9801503A publication Critical patent/BR9801503A/pt

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
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F236/10—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl-aromatic monomers
    • 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
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/46—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides selected from alkali metals
    • C08F4/48—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides selected from alkali metals selected from lithium, rubidium, caesium or francium
    • 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
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/54—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with other compounds thereof
    • C08F4/56—Alkali metals being the only metals present, e.g. Alfin catalysts
    • C08F4/565—Lithium being present, e.g. butyllithium + sodiumphenoxide
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerization Catalysts (AREA)
  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

''SBR TRANS DESORDENADA COM BAIXO TEOR DE MICROESTRUTURA DE VINILA''. O processo e o sistema catalisador desta invenção podem ser utilizados para a síntese de uma borracha de estireno-butadieno altamente desordenada, tendo um alto teor de trans, por polimerização em solução. A borracha de estireno-butadieno produzida pelo processo desta invenção pode ser utilizada em borrachas para bandas de rodagem de pneus, que apresentam características de desgaste aperfeiçoadas. Esta invenção revela, mais especificamente, um sistema catalisador para uso em polimerizações tiotérmicas, que consistem, essencialmente, de (a) um composto de organolítio, (b) um alcóxido de bário e (c) um alcóxido de lítio. A presente invenção descreve ainda um processo para a síntese de uma borracha de estireno-butadieno tendo um baixo teor de vinila por um processo, que compreende a copolimerização de estireno e 1,3-butadieno sob condições isotérmicas, em um solvente orgânico na presença de um sistema catalisador que consiste, essencialmente de (a) um composto de organolítio, (b) um alcóxido de bário e (c) um alcóxido de lítio.
BR9801503-6A 1997-05-05 1998-04-28 Srb trans desordenada com baixo teor de microestrutura de vinila BR9801503A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4558697P 1997-05-05 1997-05-05

Publications (1)

Publication Number Publication Date
BR9801503A true BR9801503A (pt) 1999-12-21

Family

ID=21938780

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9801503-6A BR9801503A (pt) 1997-05-05 1998-04-28 Srb trans desordenada com baixo teor de microestrutura de vinila

Country Status (5)

Country Link
US (1) US6103842A (pt)
EP (1) EP0877034A1 (pt)
JP (1) JPH10306114A (pt)
KR (1) KR100549888B1 (pt)
BR (1) BR9801503A (pt)

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CN107980026B (zh) 2015-04-24 2020-11-10 倍耐力轮胎股份公司 高性能轮胎
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Also Published As

Publication number Publication date
KR19980086749A (ko) 1998-12-05
EP0877034A1 (en) 1998-11-11
JPH10306114A (ja) 1998-11-17
US6103842A (en) 2000-08-15
KR100549888B1 (ko) 2006-04-21

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