Title:
タイヤ用ゴム組成物及びそれを用いたタイヤ
Document Type and Number:
Japanese Patent JP5393315
Kind Code:
B2
Abstract:
To provide a rubber composition suitable for various rubber products which can improve abrasion resistance and tear resistance and can simultaneously further reduce rolling resistance, and to provide a tire using the rubber composition.
The rubber composition suitable for tire treads and the like is produced by compounding a rubber component with hydrated silica and carbon black. The hydrated silica satisfies expression: Aac≥-0.76×(CTAB)+274, wherein CTAB (m2/g) is the cetyltrimethylammonium bromide adsorption specific surface area of the hydrated silica; Aac(nm) is the primary aggregate diameter mode determined by an acoustic grain size distribution measurement method. The carbon black is obtained by a specific process, and has a dibutyl phthalate (DBP) absorption of 40 to 180 cm3/100 g, a nitrogen adsorption specific surface area (N2SA) of 40 to 300 m2/g, a specific tinctorial power (TINT) of 50 to 150% and a toluene colored transmittance of ≥90%.
COPYRIGHT: (C)2011,JPO&INPIT
Inventors:
Yasuyuki Saeki
Application Number:
JP2009171658A
Publication Date:
January 22, 2014
Filing Date:
July 22, 2009
Assignee:
Bridgestone Corporation
International Classes:
C08L21/00; B60C1/00; C08K3/04; C08K3/34; C08K5/54; C08L7/00; C08L9/00; C08L15/00; C09C1/48
Domestic Patent References:
Attorney, Agent or Firm:
Eisuke Fujimoto
Masayoshi Kanda
Akio Miyao
