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US 11,077,725 B2Granted
Pneumatic tire with innerliner, mold release agent layer, and sealant layer
AssigneeSumitomo Rubber Industries, Ltd.
InventorsNaoki Yukawa, Mutsuki Sugimoto, Satoshi Yamada
Life of this patent
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Abstract
Provided is a pneumatic tire having sufficient sealing performance. The present invention relates to a pneumatic tire including a sealant layer located radially inside an innerliner, the sealant layer being formed by applying a sealant to the inner periphery of a tire from which mold release agents have been removed.
Claims14
A pneumatic tire, comprising
- a sealant layer located radially inside an innerliner,
- a mold release agent layer located radially inside the innerliner at at least one of the areas where the sealant layer is not present,
- the sealant layer being formed by applying a sealant to an inner periphery portion of the innerliner from which the mold release agent layer has been removed, the innerliner being thinner in the inner periphery portion of the innerliner from which the mold release agent layer has been removed than in the remaining inner periphery portion of the innerliner,
- wherein the sealant is applied to an entire area of the inner periphery portion of the innerliner from which the mold release agent layer has been removed,
- a length of the sealant layer in a tire width direction and a length in the tire width direction of the area of the inner periphery portion of the innerliner from which the mold release agent layer has been removed satisfy the following formula:
- 1 mm ≤(the length of the sealant layer in a tire width direction)-(the length in the tire width direction of the area from which the mold release agent layer has been removed) ≤16.0 mm, and
- the mold release agent layer extends along the innerliner between the innerliner and the sealant layer from the edges of the inner periphery portion of the innerliner from which the mold release agent layer has been removed.
4 more elements
Dependencies are inferred from the claim text.