Title:
POLYBUTADIENE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/116367
Kind Code:
A1
Abstract:
The present invention provides: a polybutadiene having high linearity, and improved workability and abrasion resistance; and a method for producing same This polybutadiene can be advantageously produced by means of a polybutadiene production method in which 1,3-butadiene is polymerized in two stages. The method includes: a first polymerization step for polymerizing 1,3-butadiene using a cobalt compound (C1) and an ionic compound (D) comprising a non-coordinating anion and cation; and a second polymerization step for mixing the mixture obtained in the first polymerization step with a cobalt compound (C2) and polymerizing 1,3-butadiene.
Inventors:
YAMAGAKI MASASHI (JP)
OKABE YASUYOSHI (JP)
KANBAYASHI KOU (JP)
OKABE YASUYOSHI (JP)
KANBAYASHI KOU (JP)
Application Number:
PCT/JP2019/046938
Publication Date:
June 11, 2020
Filing Date:
December 02, 2019
Export Citation:
Assignee:
UBE INDUSTRIES (JP)
International Classes:
C08F4/70; C08F236/06
Domestic Patent References:
| WO2008044722A1 | 2008-04-17 |
Foreign References:
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Attorney, Agent or Firm:
AKATSUKA Masaki et al. (JP)
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