Process for the production of storage-stable epoxy prepregs, and composites produced therefrom, based on epoxides and acids amenable to free-radical polymerisation

A process for the production of a composite, comprising:

• I) preparing a reactive composition comprising:
• A) at least one reactive resin component which has at least one acid group, and
• B) at least one epoxy-based reactive resin component, wherein one or both of components A) and B) comprises a group capable of free-radical polymerisation;
• II) directly impregnating a fibrous substrate with the reactive composition prepared in I);
• III) polymerizing the components capable of free-radical polymerisation in the impregnated substrate thermally or with electromagnetic radiation, activatable free-radical initiators, electromagnetic radiation, electron beams, or a plasma, to obtain a prepreg;
• IV) shaping at least one prepreg to obtain a moulding;
• and
• V) hardening of the epoxy components in the moulding to obtain the composite.