Blending of rubber compounds, fillers and plasticizers
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United States of America Patent
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Dec 26, 2006
Grant Date -
Jul 10, 2003
app pub date -
Sep 12, 2001
filing date -
Sep 12, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed are methods for the formation of a rubber/filler/curative/plasticizer compacted masterbatch which may be performed in two ways. In one embodiment, a rubber and a filler are intimately mixed for a time and under shear conditions sufficient to form a free flowing associated composition, then the composition is mixed with a plasticizer and a curative to form the compacted masterbatch. Alternatively, the starting material may be an already-formed free flowing associated composition of rubber, filler and optional curative, which is mixed with a plasticizer and optional curative to form the compacted masterbatch.
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