Manufacturing method of polyurethane sandwich molding

摘要

The present invention includes (i) applying at least one layer of reinforcing fiber on the core layer and applying a moisture-curable polyurethane adhesive to the layer of reinforcing fiber, and (ii) putting the part from (i) into a mold and pressing it in the mold, It relates to a method for producing a polyurethane sandwich molding comprising at least one core layer and at least one reinforcing fibrous layer, wherein the adhesive is cured, and (iii) the molding from (ii) is removed from the mold to optionally undergo further operations. , Wherein the moisture curable polyurethane adhesive is applied before or after applying the reinforcing fibrous layer onto the at least one core layer and for curing the moisture curable polyurethane adhesive is contacted with water or a solution comprising water. The invention also relates to polyurethane sandwich moldings obtainable by this method and to the use of polyurethane sandwich moldings in vehicles.