Title:
MANUFACTURING METHOD OF COPOLYMER OF CYCLIC DIENE AND NON-CYCLIC DIENE AND RUBBER COMPOSITION
Document Type and Number:
Japanese Patent JP2016040372
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a copolymer of cyclic and non-cyclic conjugated diene monomers by using a catalyst composition of a transition metal and a lanthanide metal and a rubber composition containing the copolymer.SOLUTION: There is provided a manufacturing method of a copolymer of non-cyclic conjugated diene and cyclic conjugated diene by using a polymer catalyst system containing a transition metal compound or a lanthanide metal compound, an alkylating agent and inorganic halide alcoholate. There is provided a rubber composition and a tire containing the copolymer. There is provided a manufacturing method of copolymer containing at least 90% of non-cyclic conjugated diene monomer and having a number average molecular weight of 40,000 to 300,000 and a cis biding amount of at least 92%.SELECTED DRAWING: None
Inventors:
QIN ZENGQUAN
SUZUKI EIJU
SUZUKI EIJU
Application Number:
JP2015187152A
Publication Date:
March 24, 2016
Filing Date:
September 24, 2015
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
C08F236/04; C08F4/54; C08F4/609; C08F232/06; C08L9/00; C08L21/00
Domestic Patent References:
| JP2000026581A | 2000-01-25 |
Attorney, Agent or Firm:
Kenji Sugimura
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