Title:
POLYMERIZATION CATALYST COMPOSITION, POLYMER PRODUCTION METHOD, POLYMER, RUBBER COMPOSITION, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2019/044855
Kind Code:
A1
Abstract:
A purpose of the present invention is to provide a catalyst composition of high polymerization activity. Another purpose is to provide a polymer production method. Another purpose is to provide a polymer produced according to said polymer production method. Another purpose is to provide a rubber composition containing said polymer. Another purpose is to provide a tire using said rubber composition. Provided is a catalyst composition containing a compound represented by structural formula I (wherein said compound comprises an OH group in at least one bipyridyl ring; M is a transition metal, a lanthanoid, scandium, or yttrium; R1 and R2 are hydrocarbon groups comprising one or more carbon atoms, or halogen atoms; and R1 and R2 may be identical or different). Provided is a polymer production method including a step for polymerizing, in the presence of said catalyst composition, at least one selected from the group consisting of conjugated diene compounds and compounds comprising ethylenically unsaturated double bonds. Provided is a polymer produced according to said polymer production method. Provided is a rubber composition containing said polymer. Provided is a tire using said rubber composition.
Inventors:
TAKANO SHIGENAGA (JP)
KAITA SHOJIRO (JP)
OSAKADA KOHTARO (JP)
TAKEUCHI DAISUKE (JP)
YAMAKAWA SHINJI (JP)
KAITA SHOJIRO (JP)
OSAKADA KOHTARO (JP)
TAKEUCHI DAISUKE (JP)
YAMAKAWA SHINJI (JP)
Application Number:
PCT/JP2018/031831
Publication Date:
March 07, 2019
Filing Date:
August 28, 2018
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08F4/70; B60C1/00; C08F4/80; C08F210/02; C08F236/06
Domestic Patent References:
| WO2018035506A1 | 2018-02-22 |
Foreign References:
| JP2007055915A | 2007-03-08 | |||
| JP2006503141A | 2006-01-26 | |||
| JPH10237131A | 1998-09-08 | |||
| JPH0762152A | 1995-03-07 | |||
| JP2006503141A | 2006-01-26 | |||
| JP2014019729A | 2014-02-03 |
Other References:
SIEK, SOPHEAVY ET AL.: "Iridium and Ruthenium Complexes of N-Heterocyclic Carbene- and Pyridinol-Derived Chelates as Catalysts for Aqueous Carbon Dioxide Hydrogenation and Formic Acid Dehydrogenation: The Role of the Alkali Metal", ORGANOMETALLICS, vol. 36, 3 March 2017 (2017-03-03), pages 1091 - 1106, XP055579758
C. J. LI ET AL., J. AM. CHEM. SOC., vol. 138, 2016, pages 5433 - 5440
C. J. LI ET AL., J. AM. CHEM. SOC., vol. 138, 2016, pages 5433 - 5440
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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