Rubber composition, bead apex, and tire
OwnerNaohiko Kikuchiinventor
Life of this patent
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Abstract
The invention provides a rubber composition to form a bead apex provided between a non-folded back part and a folded back part of an annular ply folded back so as to surround a bead wire at both ends of annular ply, including a rubber component containing at least one of a natural rubber and an epoxidized natural rubber, and including not less than 30 parts by mass of silica and not less than 0.1 part by mass and not more than 10 parts by mass of a quinone diimine compound relative to 100 parts by mass of the rubber component, a bead apex, and a tire.
Claims7
A rubber composition to form a bead apex provided between a non-folded back part and a folded back part of an annular ply folded back so as to surround a bead wire at both ends of said annular ply, comprising a rubber component containing at least one of a natural rubber and an epoxidized natural rubber, and comprising not less than 30 parts by mass of silica and not less than 0.1 part by mass and not more than 10 parts by mass of a quinone diimine compound relative to 100 parts by mass of said rubber component.
Dependencies are inferred from the claim text.