Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2017/175675
Kind Code:
A1
Abstract:
Provided is a pneumatic tire that is configured to inhibit edge separation at the belt layer. The present invention is characterized in that: the tire has a belt layer 8 and a carcass layer 4; a belt rubber composition constituting the belt layer 8 is obtained by blending 0.3-1.5 parts by mass of cobalt borate neodecanoate and 4.5-7.0 parts by mass of sulfur with respect to 100 parts by mass of a diene rubber including natural rubber; the belt rubber composition has a dynamic storage elastic modulus (E') of 13-18 MPa at 20°C; and the ratio (MB/MC) between the tensile stress at 100% (MB) of the belt rubber composition and the tensile stress at 100% (MC) of the carcass rubber composition constituting the carcass layer 4 is 1.5-2.5.
Inventors:
SHIMIZU KATSUNORI (JP)
NOMAGUCHI TSUYOSHI (JP)
NOMAGUCHI TSUYOSHI (JP)
Application Number:
PCT/JP2017/013567
Publication Date:
October 12, 2017
Filing Date:
March 31, 2017
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C9/20; B60C1/00; B60C9/04; C08K3/06; C08K5/55; C08L7/00; C08L61/00
Foreign References:
| JP2013122038A | 2013-06-20 | |||
| JP2010000993A | 2010-01-07 | |||
| JPH01240304A | 1989-09-25 | |||
| JP2006124474A | 2006-05-18 | |||
| JP2003159909A | 2003-06-03 | |||
| JP2007099868A | 2007-04-19 |
Other References:
See also references of EP 3441239A4
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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