Title:
ポリブタジエンゴムの製造方法およびゴム組成物
Document Type and Number:
Japanese Patent JP4013080
Kind Code:
B2
Abstract:
A process for producing a vinyl-cis-polybutadiene rubber, including mixing (A) vinyl-cis-polybutadiene obtained by (1) a step of adding a cis-1,4-polymerization catalyst obtainable from an organoaluminum compound and a soluble cobalt compound to a mixture containing 1,3-butadiene and a hydrocarbon-based organic solvent as the major components and having an adjusted water content, thereby subjecting the 1,3-butadiene to cis-1,4-polymerization and subsequently, (2) a step of making a catalyst obtainable from a soluble cobalt compound, an organoaluminum compound represented by the general formula, AlR 3 (wherein R represents an alkyl group having from 1 to 6 carbon atoms, a phenyl group, or a cycloalkyl group), and carbon disulfide present in the resulting polymerization reaction mixture, thereby subjecting the 1,3-butadiene to 1,2-polymerization; and (B) cis-polybutadiene obtained by a step of adding the foregoing cis-1, 4-polymerization catalyst, thereby subjecting the 1,3-butadiene to cis-1,4-polymerization and a rubber composition containing the resulting rubber.
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Inventors:
Naomi Okamoto
Abe Mitsuharu
Jun Yamashita
Tetsuji Nakajima
Takashi Kitamura
Osamu Kimura
Takashi Wada
Abe Mitsuharu
Jun Yamashita
Tetsuji Nakajima
Takashi Kitamura
Osamu Kimura
Takashi Wada
Application Number:
JP2006519048A
Publication Date:
November 28, 2007
Filing Date:
December 20, 2005
Export Citation:
Assignee:
Ube Industries,Ltd.
International Classes:
C08L9/00; B60C1/00; C08L53/00
Domestic Patent References:
| JP11240981A | ||||
| JP7179666A |
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu