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): AlR2m X3-m(1), R3-X(2), wherein R2 = C1-10 hydrocarbon, X = hal...

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Bibliographic Details
Main Authors YANO, TAKEFUMI, KOTANI, CHIKARA, TSUJIMOTO, NOBUHIRO, TSUKAHARA, KEI, AKIKAWA, KAZUHIRO
Format Patent
LanguageEnglish
French
Published 12.09.2006
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): AlR2m X3-m(1), R3-X(2), wherein R2 = C1-10 hydrocarbon, X = halogen, m = 0 to 2, R3 = C1-40 hydrocarbon, and (D) water in an amount of 0.77 to 1.45 moles per mole of total A1 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.
Bibliography:Application Number: CA19972208669