Title:
CONJUGATED DIENE RUBBER, RUBBER COMPOSITION, RUBBER CROSSLINK PRODUCT, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2012/086496
Kind Code:
A1
Abstract:
Provided are: a tire having excellent strength, low heat-generating properties and wet grip properties; a rubber composition which can be used suitably for providing the tire; and a conjugated diene rubber. This conjugated diene rubber is produced from a conjugated diene polymer chain of which one terminal is an active terminal and which has, at least on the side of the other terminal thereof, an isoprene block containing an isoprene monomer unit in an amount of 70 wt% or more, wherein the active terminal in at least a part of the conjugated diene polymer chain is modified with a compound having a group >C=O as a functional group.
Inventors:
SASAJIMA TATSUO
KARATO TAKESHI
SUGIMURA TAKESHI
KARATO TAKESHI
SUGIMURA TAKESHI
Application Number:
PCT/JP2011/078949
Publication Date:
June 28, 2012
Filing Date:
December 14, 2011
Export Citation:
Assignee:
ZEON CORP (JP)
SASAJIMA TATSUO
KARATO TAKESHI
SUGIMURA TAKESHI
SASAJIMA TATSUO
KARATO TAKESHI
SUGIMURA TAKESHI
International Classes:
B60C1/00; C08C19/00; C08F297/02; C08K3/04; C08L15/00
Domestic Patent References:
| WO2007114203A1 | 2007-10-11 | |||
| WO2011105362A1 | 2011-09-01 |
Foreign References:
| JP2006525392A | 2006-11-09 | |||
| JPS63205336A | 1988-08-24 | |||
| JPS61171749A | 1986-08-02 | |||
| JP2005507441A | 2005-03-17 | |||
| JPS6481811A | 1989-03-28 | |||
| JP2006525393A | 2006-11-09 | |||
| JPH04249511A | 1992-09-04 | |||
| JPS6142552A | 1986-03-01 | |||
| JPH01249812A | 1989-10-05 | |||
| JP2003531257A | 2003-10-21 |
Other References:
Z. G. MITOV ET AL.: "MODIFICATION OF STYRENE-ISOPRENE COPOLYMERS-1. END- TERMINATED PRODUCTS", EUR. POLYM. J., vol. 28, no. 7, 1992, pages 765 - 770, XP024053709
See also references of EP 2657257A4
See also references of EP 2657257A4
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
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Claims: