| abstract |
A process for the production of polyurethane-based pultruded articles is provided. [Solution means] The present invention comprises (a) di- or polyisocyanates, (b) compounds having at least two groups reactive to isocyanates, (c) catalysts, (d) mold release agents, and optionally (e) others The invention relates to a process for the preparation of pultrusion products by mixing auxiliaries and additional substances according to the invention, a process for the manufacture of pultrusion products by obtaining a pultrusion resin system and wetting and curing the fiber material with said system. In the method, a polyol component (B) containing a compound (b) having at least two groups reactive to isocyanate with the di- or polyisocyanate (a), a catalyst (c), a releasing agent (d) And, optionally, other auxiliaries and additional substances (e), the pH of the polyol component (B) is in the range of 6.5 to 8.5. The invention further relates to a pultrusion object obtainable by the method. |