RUBBER COMPOSITION MANUFACTURING METHOD, TIRE MANUFACTURING METHOD, AND RUBBER COMPOSITION MANUFACTURING APPARATUS
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United States of America Patent
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Issued Date -
Jun 29, 2023
app pub date -
Dec 1, 2022
filing date -
Dec 23, 2021
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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.
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