Method for producing pultruded products on the basis of polyurethane

A process for the production of a pultrudate comprising:

• mixing
• a) di- or polyisocyanates,
• b) compounds having at least two groups reactive toward isocyanates,
• c) at least one amine catalyst,
• d) mold-release agent and optionally,
• e) other auxiliaries,
• to give a pultrusion resin system, wherein the di- or polyisocyanates (a) are mixed with a polyol component (B), comprising compounds (b) having at least two groups reactive toward isocyanates, at least one catalyst (c), mold-release agent (d) and optionally other auxiliaries (e), and a pH of the polyol component (B) is from 6.5 to 8.5;
• wetting a fiber material with the pultrusion resin system, wherein the wetting of the fiber material takes place in a closed mold and the temperature during the wetting is from 0 to 75° C.;
• and
• drawing the wetted fiber material through a mold at a take-off velocity greater than one meter per minute.