Rubber compositions having improved scorch safety
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United States of America Patent
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Issued Date -
Jan 8, 2004
app pub date -
Jun 27, 2002
filing date -
Jun 27, 2002
priority date (Note) -
Abandoned
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Abstract
A rubber composition is disclosed wherein the rubber composition contains at least (a) a rubber component; (b) a carbon black filler and (c) an effective amount of a thiuram disulfide accelerator of the general formula 1 wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each are the same or different and are hydrocarbons containing from about 8 to about 18 carbon atoms, optionally containing one or more heterocyclic groups, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 together with the nitrogen atom to which they are bonded are joined together to form a heterocyclic group, optionally containing one or more additional heterocyclic atoms. The compositions may also include suitable amounts of other ingredients such as antiozonants, antioxidants, etc.
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