Method for producing rubber mixtures
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United States of America Patent
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Apr 28, 1992
Grant Date -
N/A
app pub date -
Feb 28, 1991
filing date -
Feb 28, 1990
priority date (Note) -
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Abstract
A method for producing a rubber mixture. In a first stage, in a ram kneader, a master batch is produced, and in a second stage, in a batch-type process, a final mixture is produced in a ram-less kneader, without the need for intermediate storage. To improve the cooling in the ram-less kneader, the interior of this kneader is supplied with air that has such a degree of dryness that a condensation deposit is precluded. To achieve this, an essentially air tight channel is provided between the two kneaders, with a place being provided in the channel for the bottom closure of the ram kneader in a swung-out position of this closure.
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