Rubber composition manufacturing method, tire manufacturing method, and rubber composition manufacturing apparatus
AssigneeToyo Tire Corporation
InventorSho Taniguchi
Life of this patent
Estimating the term…
Abstract
A rubber composition manufacturing method comprises an operation in which at least rubber, silica, and silane coupling agent are kneaded in an internal kneader at not less than a temperature lower limit for a coupling reaction between the silica and the silane coupling agent to proceed. For at least a portion of time during which that operation is being carried out, a compressed gas is delivered to the kneading chamber while the ram is in a nonpressing state.
Claims14
A rubber composition manufacturing method comprising an operation in which at least rubber, silica, and silane coupling agent are kneaded in an internal kneader at not less than a temperature lower limit for a coupling reaction between the silica and the silane coupling agent to proceed, wherein
- the internal kneader comprises a kneading chamber, a neck which is located above the kneading chamber, and a ram which is capable of moving vertically through a space within the neck;
- and
- for at least a portion of time during which the operation is being carried out, a compressed gas is delivered to the kneading chamber while the ram is in a nonpressing state.
A rubber composition manufacturing apparatus comprising:
- an internal kneader comprising a kneading chamber, a neck which is located above the kneading chamber, a ram which is capable of moving vertically through a space within the neck, and a hole constituting an opening in a wall face of the kneading chamber;
- and
- a compressor that generates compressed gas for delivery to the kneading chamber by way of the hole.
Dependencies are inferred from the claim text.