Storage-stable, homogeneous mixture containing epoxide resin, curing agent and curing accelerator, and the use of the mixture for producing cured products

Claim 1

A homogeneous mixture of epoxide resin, curing agent for the resin, and curing accelerator, which mixture contains (a) an epoxide resin having on average more than one epoxide group in the molecule, (b) as curing agent for the epoxide resin, a cyanoacetyl compound dissolved in the resin, which compound has a melting point (m.p.) below 120° C. and corresponds to the formula I ##STR42## wherein R is the radical of a mono- to tetravalent alcohol or amine having a partial molecular weight of ≦2000, which radical is formed by removal of 1 to 4 hydroxyl hydrogen atoms or amine hydrogen atoms, and n is a number from 1 to 4 inclusive, the amount of (b) being such that to 1 --CH 2 --C.tbd.N group there are 3-4 epoxide groups of the component (a), and (c) as curing accelerator, to 100 parts by weight of epoxide resin 0.1 to 10 parts by weight of a phenylurea derivative of the formula II ##STR43## in which Z is the group ##STR44## wherein A is --CH 2 -- or N, p is 0, 1 or 2, and q is 1 or 2, and R 1 and R 2 independently of one another are each an alkyl group having 1 to 4 carbon atoms, and wherein R 3 and R 4 independently of one another are each hydrogen, halogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, or a substituted or unsubstituted phenyl or phenoxy group, and R 5 is hydrogen, trifluoromethyl, nitro or one of the groups ##STR45##