METHOD FOR PRODUCING (MODIFIED) CONJUGATED DIENE-BASED POLYMER

PROBLEM TO BE SOLVED: To obtain a (modified) conjugated diene-based polymer having a narrow molecular weight distribution and improved cold flow and excellent in storage stability by using a new compound catalyst of rare earth elements exhibiting high polymerization activity to the conjugated diene-...

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Hauptverfasser: AKEMA HIROSHI, SONE TAKAO
Format: Patent
Sprache:eng
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