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BR9904358A - Sistema de catalisador a base de cálcio - Google Patents

Sistema de catalisador a base de cálcio

Info

Publication number
BR9904358A
BR9904358A BR9904358-0A BR9904358A BR9904358A BR 9904358 A BR9904358 A BR 9904358A BR 9904358 A BR9904358 A BR 9904358A BR 9904358 A BR9904358 A BR 9904358A
Authority
BR
Brazil
Prior art keywords
catalyst system
calcium
styrene
alkoxide
butadiene rubber
Prior art date
Application number
BR9904358-0A
Other languages
English (en)
Inventor
Adel Farhan Halasa
Wen-Liang Hsu
John Robert Zuppo Iii
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 BR9904358A publication Critical patent/BR9904358A/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
    • C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F136/02—Homopolymers 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
    • C08F136/04—Homopolymers 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
    • C08F136/08—Isoprene
    • 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

Landscapes

  • Chemical & Material Sciences (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)

Abstract

"SISTEMA DE CATALISADOR A BASE DE CáLCIO" Processo e sistema de catalisador desta invenção podem ser utilizados para sintetizar uma borracha de estireno-butadieno aleatória possuindo um teor trans superior por polimerização da solução. A borracha de estireno-butadieno fabricada pelo processo desta invenção pode ser utilizada nas borrachas para banda de rodagem de pneumático que exibem características de desgaste aperfeiçoadas. Esta invenção revela, mais especificamente, um sistema de catalisador para utilização nas polimerizações isotérmicas que consistem essencialmente de (a) um composto organolítio, (b) um alcóxido de cálcio e (c) um alcóxido de lítio. A presente invenção revela, adicionalmente, um processo para sintetização de uma borracha de estireno-butadieno aleatória, possuindo um teor baixo de vinila por um processo que compreende a copolimerização de estireno e 1,3-butadieno sob condições isotérmicas no solvente orgânico, em presença de um sistema de catalisador que consiste essencialmente de (a) um composto organolítio, (b) um alcóxido de cálcio e (c) um álcoxido de lítio. Uma amina pode também ser adicionada ao sistema catalisador para aumentar o peso molecular (viscosidade Mooney) da borracha.
BR9904358-0A 1998-10-01 1999-09-23 Sistema de catalisador a base de cálcio BR9904358A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10270698P 1998-10-01 1998-10-01

Publications (1)

Publication Number Publication Date
BR9904358A true BR9904358A (pt) 2001-01-16

Family

ID=22291269

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9904358-0A BR9904358A (pt) 1998-10-01 1999-09-23 Sistema de catalisador a base de cálcio

Country Status (6)

Country Link
US (2) US6359088B1 (pt)
EP (1) EP0990670B1 (pt)
BR (1) BR9904358A (pt)
CA (1) CA2282068A1 (pt)
DE (1) DE69921576T2 (pt)
GB (1) GB2342096B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6545103B2 (en) * 1997-11-14 2003-04-08 Fmc Corporation Compositions providing improved functionalization of terminal anions and processes for improved functionalization of terminal anions
US7087549B2 (en) * 1998-10-01 2006-08-08 The Goodyear Tire & Rubber Company Calcium-based catalyst system
US6608154B2 (en) * 1999-12-31 2003-08-19 The Goodyear Tire & Rubber Company Process for synthesizing trans polydiene rubber
US6758251B2 (en) 2002-08-21 2004-07-06 The Goodyear Tire & Rubber Company Pneumatic tire having a component containing high trans styrene-butadiene rubber
US6889737B2 (en) * 2002-12-05 2005-05-10 The Goodyear Tire & Rubber Company Pneumatic tire having a component containing high trans styrene-butadiene rubber
WO2005035599A1 (de) * 2003-10-09 2005-04-21 Walter Hellermann Katalysatorsystem zur herstellung von homo- und copolymeren von dienen und vinylaromaten durch anionische polymerisation
US7321017B1 (en) 2006-08-24 2008-01-22 The Goodyear Tire & Rubber Company Amine containing catalyst system and methods of use thereof
US7285605B1 (en) 2006-08-30 2007-10-23 The Goodyear Tire & Rubber Company Batch process for synthesizing rubbery polymers having a high trans microstructure content
US7884168B2 (en) * 2009-02-13 2011-02-08 The Goodyear Tire & Rubber Company Heterogeneous rubbery polymers having random, tapered, and block portions therein and methods of making same
RU2508285C1 (ru) * 2012-07-06 2014-02-27 Федеральное государственное унитарное предприятие "Ордена Ленина и ордена Трудового Красного Знамени Научно-исследовательский институт синтетического каучука имени академика С.В. Лебедева" (ФГУП НИИСК) Способ получения алкоголятов щелочных и щелочноземельных металлов ( варианты )
RU2598075C1 (ru) * 2015-07-17 2016-09-20 Публичное Акционерное Общество "Нижнекамскнефтехим" Способ получения полимеров бутадиена и сополимеров бутадиена со стиролом
RU2671556C1 (ru) * 2018-07-27 2018-11-02 Публичное акционерное общество "СИБУР Холдинг" Способ получения бутадиен-стирольных сополимеров
FR3112347B1 (fr) * 2020-07-07 2022-08-05 Michelin & Cie Système catalytique pour la polymérisation stéréospécifique de diènes et leur utilisation en procédé de synthèse de polymères diéniques

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674760A (en) 1970-09-02 1972-07-04 Firestone Tire & Rubber Co Method of producing butadiene-styrene copolymer
US4129705A (en) * 1975-02-02 1978-12-12 Compagnie Generale Des Etablissements Michelin Polymerization process
JPS57159807A (en) * 1981-03-27 1982-10-02 Asahi Chem Ind Co Ltd Production of conjugated diene polymer
AU3741185A (en) * 1983-11-15 1985-06-03 Lithium Corporation Of America Preparation of alkaline earth metal organometallic compounds
EP0304088B1 (en) * 1987-08-19 1993-01-27 Asahi Kasei Kogyo Kabushiki Kaisha A prepolymerization process for producing a conjugated diene compound prepolymer solution
US4933401A (en) * 1988-02-26 1990-06-12 Japan Synthetic Rubber Co., Ltd. Catalyst composition for polymerization of conjugated diene and process for producing conjugated diene polymer
US5064800A (en) * 1989-12-21 1991-11-12 Shell Oil Company Anionic polymerization catalyst compositions
CA2035229A1 (en) 1990-10-22 1992-04-23 Wen-Liang Hsu Process for preparing a rubbery terpolymer of styrene, isoprene and butadiene
US5100965A (en) 1991-04-08 1992-03-31 The Goodyear Tire & Rubber Company Process for synthesizing high trans polymers
US5534592A (en) 1995-09-22 1996-07-09 The Goodyear Tire & Rubber Company High performance blend for tire treads
EP0877034A1 (en) * 1997-05-05 1998-11-11 The Goodyear Tire & Rubber Company Random trans SBR with low vinyl microstructure

Also Published As

Publication number Publication date
EP0990670A1 (en) 2000-04-05
US20020045720A1 (en) 2002-04-18
GB2342096B (en) 2002-09-18
EP0990670B1 (en) 2004-11-03
GB2342096A (en) 2000-04-05
US6359088B1 (en) 2002-03-19
CA2282068A1 (en) 2000-04-01
GB9923145D0 (en) 1999-12-01
DE69921576T2 (de) 2005-12-01
DE69921576D1 (de) 2004-12-09

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements