IMPROVING TREADWEAR WITHOUT INCREASING HEAT BUILD UP BY USING 1,3-BIS(CITRACONIMIDOMETHYL)BENZENE

The antireversion agent 1,3-bis(citraconimidomethyl) benzene (Perkalin k 900) reduces heat build up in vulcanizates under dynamic conditions, It functions by a crosslink compensation mechanism that maintains com pound physical and dynamic properties on overcure or during service, T he conventional approaches to improving treadwear - partial replacemen t of NR with BR, increased carbon black level or use of higher reinfor cing blacks - lead to increased heat build up. This has limited the ap plication of these approaches in practice, However, by incorporating P erkalink 900 together with these compound modifications the increased heat build up can be prevented, thus allowing improvements in treadwea r to be realized. This is shown by laboratory data.