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US 2012/0259051 A1Published application
Rubber composition for bead apex and pneumatic tire
OwnerTatsuya MIYAZAKIinventor
Life of this patent
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Abstract
Provided is a rubber composition for a bead apex and a pneumatic tire which can provide good handling stability and enable suppression of reduction of this performance. The rubber composition for a bead apex includes a rubber component; a carbon black; zinc oxide; and an alkylphenol-sulfur chloride condensate, wherein the carbon black has a COAN of 75 to 130 ml/100 g and a BET specific surface area of 25 to 50 m2/g, and an amount of the carbon black is 55 to 80 parts by mass and an amount of the zinc oxide is 7 to 12 parts by mass, per 100 parts by mass of the rubber component.
Claims7
A rubber composition for a bead apex, comprising
- a rubber component;
- a carbon black;
- zinc oxide;
- and
- an alkylphenol-sulfur chloride condensate, wherein the carbon black has a COAN of 75 to 130 ml/100 g and a BET specific surface area of 25 to 50 m2/g, and
- an amount of the carbon black is 55 to 80 parts by mass and an amount of the zinc oxide is 7 to 12 parts by mass, per 100 parts by mass of the rubber component.
3 more elements
Dependencies are inferred from the claim text.