Pneumatic tire having formed rubber

Details Pneumatic tire having formed rubber Pneumatic tire having formed rubber

C - Chemistry, Metallurgy

08

L

C08L 9/00 (2006.01) B60C 1/00 (2006.01) B60C 11/00 (2006.01) B60C 11/14 (2006.01) C08K 3/00 (2006.01) C08K 3/02 (2006.01) C08K 3/36 (2006.01) C08L 7/00 (2006.01)

Patent

CA 2145355

A pneumatic tire in which a foamed rubber layer having closed cells is provided at a surface of a tire tread which substantially contacts at least a road surface, wherein the foamed rubber layer has closed cells whose average diameter is about 1 µ m to about 120 µ m and has an expansion ratio of about 1% to about 100%, a solid-phase rubber portion of the foamed rubber layer has a rubber composition in which at least both of a diene-type rubber and silica are mixed, and an amount of the silica is about 10 to about 80 parts by weight based on 100 parts by weight of the diene-type rubber. The pneumatic tire exhibits excellent traction and braking abilities and controllability on snowy, icy and wet road surfaces.

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