Resinous terpene maleimide and process for preparing the same

摘要

There are provided resinous terepene maleimides useful as tackifiers for elastomers and prepared by reacting at tempertures between 140 DEG C. and 200 DEG C. substantially equimolar amounts of (a) non-conjugated monocyclic terpenes or mixtures thereof and (b) maleic acid anhydride in the presence of from 0.05% to 0.15% iodine, based on the weight of the terpene, recovering a mixture of not less than 95% mono-adduct and not more than 15% di-adduct of terpene maleic adduct, further reacting said adduct mixture with stoichiometric amounts of an aliphatic polyamine, and recovering terpene maleimide having a number average molecular weight between about 500 and about 600.