Title:
ブレーカートッピング用ゴム組成物及び空気入りタイヤ
Document Type and Number:
Japanese Patent JP5395113
Kind Code:
B2
Abstract:
A rubber composition for a breaker topping can achieve balanced improvement of fuel economy, hardness, elongation at break, and adhesion. A pneumatic tire includes a breaker produced using the rubber composition. The rubber composition for a breaker topping includes a rubber component; silica; sulfur; a certain vulcanization accelerator; a compound represented by the following formula and/or a hydrate thereof; and stearic acid and/or cobalt stearate, wherein the mass ratio of the sulfur/the vulcanization accelerator and the total amount of stearic acid and cobalt stearate are set to the respective certain values, the formula being: MO3S—S—(CH2)q—S—SO3M wherein q represents an integer of 3 to 10, and Ms are the same as or different from each other, each representing lithium, potassium, sodium, magnesium, calcium, barium, zinc, nickel, or cobalt.
Inventors:
Tatsuya Miyazaki
Application Number:
JP2011108621A
Publication Date:
January 22, 2014
Filing Date:
May 13, 2011
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B60C1/00; C08L21/00; B60C11/14; C08K3/06; C08K3/36; C08K5/09; C08K5/42; C08K5/47; C08L9/00; C08L15/00
Domestic Patent References:
| JP2010090291A | ||||
| JP2009007549A | ||||
| JP2009155632A | ||||
| JP2009286872A | ||||
| JP2009292942A | ||||
| JP2009057535A | ||||
| JP2004323662A | ||||
| JP2002362107A |
Foreign References:
| WO2009084617A1 |
Attorney, Agent or Firm:
Atomi International Patent Office
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