Title:
A rubber composition and a pneumatic tire
Document Type and Number:
Japanese Patent JP6014276
Kind Code:
B2
Abstract:
Provided are a rubber composition that can achieve a balanced improvement in wet grip performance, abrasion resistance, and abrasion appearance after abrasion, and a pneumatic tire including a tread formed from the rubber composition. Included is a rubber composition containing: a rubber component including a diene rubber; an inorganic filler having a BET of 10-120 m 2 /g, formed of a compound of formula below, magnesium sulfate, or silicon carbide; and a fine particle carbon black having a BET of 151 m 2 /g or more and/or a low-temperature plasticizer having a freezing point of -10°C or lower, the rubber composition containing, per 100 parts by mass of the rubber component, 1-70 parts by mass of the inorganic filler, 5-140 parts by mass of the fine particle carbon black, and 1-30 parts by mass of the low-temperature plasticizer, the combined amount of the filler and the carbon black being 50-190 parts by mass,
mM ·xSiO y ·zH 2 O
wherein M represents at least one metal selected from the group consisting of Al, Mg, Ti, Ca, and Zr, or an oxide or hydroxide of the metal; m represents an integer of 1-5; x represents an integer of 0 to 10; y represents an integer of 2-5; and z represents an integer of 0-10.
Inventors:
Tatsuya Miyazaki
Application Number:
JP2015552917A
Publication Date:
October 25, 2016
Filing Date:
April 22, 2015
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
C08L9/06; B60C1/00; C08K3/04; C08K3/22; C08K5/11; C08L7/00
Domestic Patent References:
| JP2000281833A | 2000-10-10 | |||
| JPH1059713A | 1998-03-03 | |||
| JP2001181447A | 2001-07-03 | |||
| JP2015013974A | 2015-01-22 | |||
| JP2000281833A | 2000-10-10 | |||
| JPH1059713A | 1998-03-03 | |||
| JP2001181447A | 2001-07-03 | |||
| JP2015013974A | 2015-01-22 |
Foreign References:
| WO2014178336A1 | 2014-11-06 | |||
| WO2014178336A1 | 2014-11-06 |
Attorney, Agent or Firm:
Atomi International Patent Office