The phenomenon of reversion which occurs in a NR compound when vulcani
zed using a conventional cure (CV) system is well known. Reversion lea
ds to the impairment of vulcanizate properties such as modulus, compre
ssion set and heat generation. In this paper the effect of a new chemi
cal 1,3 bis(citraconimidomethyl)benzene (BCI-MX) will be discussed wit
h respect to its mechanism of action and applications, The use of this
chemical will allow rubber compounders to take advantage of CV cure s
ystems with regard to flex/fatigue properties whilst improving reversi
on resistance.