Title:
環状ジエンと非環状ジエンとの共重合体の製造方法、及びゴム組成物
Document Type and Number:
Japanese Patent JP2014507546
Kind Code:
A
Abstract:
A process for preparing a copolymer of an acyclic conjugated diene and a cyclic conjugated diene using a polymerization catalyst system comprising a transition metal compound or a lanthanide metal compound, an alkylating agent, and an inorganic halide alcoholate, and rubber compositions and tires comprising the same. The copolymer contains at least 90% acyclic conjugated diene monomer, has a number average molecular weight of between 40,000 and 300,000, and has a cis-bond content of at least 92%.
Inventors:
Tsenguan Kin
Suzuki Hidetoshi
Suzuki Hidetoshi
Application Number:
JP2013557669A
Publication Date:
March 27, 2014
Filing Date:
October 13, 2010
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
C08F236/04; C08F4/54; C08F4/60; C08F4/70; C08L7/00; C08L9/00
Domestic Patent References:
| JP2000026581A | 2000-01-25 | |||
| JPS55104306A | 1980-08-09 | |||
| JPS55104307A | 1980-08-09 | |||
| JP2001302704A | 2001-10-31 | |||
| JP2009013420A | 2009-01-22 |
Attorney, Agent or Firm:
Kenji Sugimura
Kazuyuki Tomita
Miyuki Kami
Kazuyuki Tomita
Miyuki Kami