abstract |
Oligomeric cyanoguanidines of the formula I <IMAGE> in which, for example, R<1> and R<2> are each phenyl, R is 1,4-phenylene and n is an integer from 1-20, are suitable as latent curing agents for epoxy resins. They are readily soluble in solvents suitable for the application of epoxy resins, and the products cured therewith have a high glass transition temperature. |