Keil & Weinkauf
Curable compositions based on epoxy resins
 A solvent-free curable composition has a long shelf life and consists of PA0 A 100 parts by weight of an epoxy resin and PA0 B from 10 to 100 parts by weight of .[.,.]. .Iadd.4,4-bis-(para-aminobenzoyl)-piperazine .Iaddend.as a curing agent for the epoxy resin, .[.an aromatic diamine containing ##STR1## groups,.]. with or without C from 0.01 to 5 parts by weight of an accelerator, the curing agent for the epoxy resin being finely dispersed in the latter and preferably having a particle size of less than 10 .mu.m. .[.The preferred epoxy resin curing agent is 4,4'-diaminodiphenyl ketone..]. The curable composition is used in particular for the preparation of fiber-reinforced materials. 
BASF Aktiengesellschaft
Gerhard Walter Manfred Peter Helmut Dietmar Herbert
Schaefer Doerflinger Heym Neumann Tesch Nissen Stutz