Process for producing polybutadiene

A high cis-1,4-polybutadiene is produced, with a reduced gel formation, by preparing a catalyst from (A) a cobalt compound, (B) a trialkyl (C1-10) aluminum compound, ( C ) a halide compound selected from those of the formulae (1) and (2): AlR mX3-m(1), R -X(2), wherein R =C1-10 hydrocarbon, X=haloge...

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Bibliographic Details
Main Authors YANO, TAKEFUMI, KOTANI, CHIKARA, TSUJIMOTO, NOBUHIRO, TSUKAHARA, KEI, AKIKAWA, KAZUHIRO
Format Patent
LanguageEnglish
Published 01.02.2001
Edition7
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A high cis-1,4-polybutadiene is produced, with a reduced gel formation, by preparing a catalyst from (A) a cobalt compound, (B) a trialkyl (C1-10) aluminum compound, ( C ) a halide compound selected from those of the formulae (1) and (2): AlR mX3-m(1), R -X(2), wherein R =C1-10 hydrocarbon, X=halogen, m = 0 to 2, R =C1-40 hydrocarbon, and (D) water in an amount of 0.77 to 1.45 moles per mole of total Al in the component (B) and (C); and polymerizing 1,3-butadiene in the presence of the resultant catalyst in a polymerization medium including an alkane, cycloalkane and/or olefin hydrocarbon, in which the organic aluminum component (B) is present in an amount of 50 to 5000 moles per mole of the cobalt component (A).
Bibliography:Application Number: TW199786108648