Title:
【発明の名称】ゴム組成物
Document Type and Number:
Japanese Patent JP3479084
Kind Code:
B2
Abstract:
A rubber composition prepared by blending 15 to 85 parts by weight of silica per 100 parts by weight of a rubber component comprising natural rubber and/or diene base synthetic rubber and 1 to 15 % by weight of a dispersion-improving agent based on the amount of the silica described above. Further, a rubber composition prepared by blending 20 to 60 parts by weight of silica and 30 to 80 parts by weight of carbon black having a cetyl trimethylammonium bromide-adsorbing amount (CTAB) of 120 m<2>/g or more and a dibutyl phthalate-absorbing amount (DBP) of 120 ml/100 g or more per 100 parts by weight of a rubber component comprising natural rubber and/or diene base synthetic rubber, and 3 to 15 % by weight of a dispersion-improving agent based on the amount of the silica described above, wherein the total amount of silica and carbon black is 50 to 120 parts by weight. A specific nitrogen-containing carbonyl compound or silicone oil is used as a dispersion-improving agent.
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Inventors:
Shunji Araki
Kazuhiro Yanagisawa
Kazuhiro Yanagisawa
Application Number:
JP53426397A
Publication Date:
December 15, 2003
Filing Date:
June 26, 1997
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
C08K5/20; C08K5/21; C08K5/22; C08L21/00; (IPC1-7): C08L21/00; C08K3/36; C08K5/21
Domestic Patent References:
| JP58198550A | ||||
| JP9111044A |
Other References:
【文献】米国特許4021404(US,A)
【文献】欧州特許出願公開364428(EP,A1)
【文献】欧州特許出願公開364428(EP,A1)
Attorney, Agent or Firm:
Eisuke Fujimoto (1 person outside)