Azodicarbonamide treatment for carbon black and rubber compounds
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United States of America Patent
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May 30, 2006
Grant Date -
Aug 5, 2004
app pub date -
Feb 4, 2003
filing date -
Feb 4, 2003
priority date (Note) -
Expired
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Abstract
A process for producing cured rubber is disclosed wherein the process comprises: A) mixing rubber, carbon black, and azodicarbonamide without other curative ingredients; B) adding the remaining curative ingredients in one or more subsequent mixing steps; and then C) curing the rubber; whereby a cured rubber having improved hysteresis is obtained. The cured rubber thus obtained is particularly useful in tires and tire treads.
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