METHOD FOR PRODUCING BLOCK COPOLYMER

PROBLEM TO BE SOLVED: To provide a method for producing a block copolymer of a conjugated diene and a polar monomer. SOLUTION: This method for producing the block copolymer of the conjugated diene and the polar monomer comprises the homopolymerization of the conjugated diene in the presence of a cat...

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Bibliographic Details
Main Authors DOI YOSHIHARU, AIDA SHOJIRO, WAKATSUKI YASUO
Format Patent
LanguageEnglish
Published 18.11.2004
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:PROBLEM TO BE SOLVED: To provide a method for producing a block copolymer of a conjugated diene and a polar monomer. SOLUTION: This method for producing the block copolymer of the conjugated diene and the polar monomer comprises the homopolymerization of the conjugated diene in the presence of a catalyst composition containing (A) a metallocene complex of a rare earth metal compound and (B) an ionic compound composed of a non-coordinating anion and cation and/or an aluminoxane and the addition of the polar monomer to the homopolymerization product. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20030122245