Title:
TIRE TREAD RUBBER COMPOSITION AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2018/135530
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a tire tread rubber composition having exceptional processability and offering exceptional wet grip performance, rolling characteristics, and wear resistance performance in tires produced therefrom; and a pneumatic tire in which said tire tread rubber composition is used. This tire tread rubber composition comprises a diene rubber, silica, a silane coupling agent, and an aromatic modified terpene resin having a softening point of 60 to 150°C. The tire tread rubber composition has a silica content of 50 to 150 parts by mass relative to 100 parts by mass of the diene rubber, and a silane coupling agent content of 2 to 20 mass% relative to the silica content. The diene rubber includes a specific modified conjugated diene polymer and a specific conjugated diene rubber, the specific modified conjugated diene polymer content of the diene rubber being 10 to 50 mass%, and the specific conjugated diene rubber polymer content of the diene rubber being 50 to 90 mass%.
More Like This:
Inventors:
IIZUKA YUSUKE (JP)
Application Number:
PCT/JP2018/001213
Publication Date:
July 26, 2018
Filing Date:
January 17, 2018
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
C08L15/00; B60C1/00; C08K3/36; C08K5/54
Foreign References:
| JP2017088864A | 2017-05-25 | |||
| JP2013237724A | 2013-11-28 | |||
| JP2013159745A | 2013-08-19 | |||
| JP2016089118A | 2016-05-23 | |||
| JP2016047888A | 2016-04-07 | |||
| JP2016047886A | 2016-04-07 | |||
| JP2016047889A | 2016-04-07 | |||
| JP2016047887A | 2016-04-07 | |||
| JP2016047887A | 2016-04-07 | |||
| JP5965657B2 | 2016-08-10 | |||
| JP2016047883A | 2016-04-07 |
Other References:
See also references of EP 3572460A4
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
Download PDF: