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Patent Searching and Data


Title:
RUBBER COMPOSITION, CROSSLINKED RUBBER COMPOSITION, AND RUBBER PRODUCT
Document Type and Number:
WIPO Patent Application WO/2017/163552
Kind Code:
A1
Abstract:
The present invention provides a rubber composition which contains a rubber component having excellent cold flow resistance and is superior in low-loss characteristics and wear resistance to conventional ones. The rubber composition is characterized by including a modified conjugated-diene-based polymer which has a hydroxyl group at a terminal and further including natural rubber and/or polyisoprene rubber. It is preferable that the modified conjugated-diene-based polymer has a cis-1,4 bond content of 95% or higher and a molecular-weight distribution (Mw/Mn) of 2.5 or less. It is preferable that the content of the modified conjugated-diene-based polymer in the rubber component be 20 mass% or higher.

Inventors:
YAMAGATA YUSUKE (JP)
KAITA SHOJIRO (JP)
Application Number:
PCT/JP2017/001062
Publication Date:
September 28, 2017
Filing Date:
January 13, 2017
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L15/00; B60C1/00; C08C19/38; C08F136/06; C08K3/04; C08K3/36; C08L7/00
Domestic Patent References:
WO2007034785A12007-03-29
Foreign References:
JP2000273240A2000-10-03
JP2003012860A2003-01-15
JP2006083301A2006-03-30
JPH01146920A1989-06-08
JP2009221203A2009-10-01
Other References:
See also references of EP 3434725A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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