NOVELTY - Fiber composite material obtained by (a) mixing components of a polycomponent composition immediately before use, where composition comprises (A) at least a compound having two or more isocyanate groups, (B) a compound with at least two reactive groups comprising hydroxy-, thiol- or primary/secondary amino-groups and (C) at least one epoxide prepolymer; (b) introducing the obtained preparation in a mold, which contains fibers and optionally other additives; (c) precuring the obtained mixture at 5-90 degrees C and (d) finally curing the precured composite fiber material at 100-240 degrees C, is claimed.    USE - The fiber composite material is useful as a component (claimed) for manufacturing aircrafts, automobiles and rotor blades for wind-power plants.    ADVANTAGE - The fiber composite material exhibits high impact strength.    DETAILED DESCRIPTION - Fiber composite material obtained by (a) mixing components of a polycomponent composition immediately before use, where composition comprises (A) at least a compound having two or more isocyanate groups, (B) a compound with at least two reactive groups comprising hydroxy-, thiol-, primary amino- or secondary amino-groups, where (B) is free of epoxy groups and (C) at least one epoxide prepolymer; (b) introducing the obtained preparation in a mold, which contains fibers and optionally other additives, where the obtained mixture comprises at least one latent curing agent for epoxide prepolymer; (c) precuring the obtained mixture at 5-90 degrees C and (d) subsequently finally curing the precured composite fiber material at 100-240 degrees C, where the fiber composite material after the step (c) or (d) is removed from the mold, is claimed. INDEPENDENT CLAIMS are included for:    (1) precured fiber composite material obtained by wetting the fiber composite material, where the precured composite material comprises the latent curing agent for epoxide prepolymer; and    (2) a component comprising the fiber composite material.