| abstract |
The present invention relates to a method for producing a composite material member comprising a) a support of a thermoplastic composition, and b) at least one polyurethane layer in direct contact with the support, (i) in the first operating step, the thermoplastic A melt of the composition is poured into the first mold cavity and then cooled; (ii) in a second operating step, the cavity of the injection mold is expanded, thereby creating a gap; (iii) a third In the operating step, a reactive feed polyurethane mixture comprising at least one polyisocyanate component, at least one multifunctional H-active compound, and optionally at least one polyurethane additive and / or process additive, It is injected into the gap thus created between the thermoplastic member and the mold surface of the expanded cavity, where the raw polyurethane material mixture is thermoplastically supported. In contact with the surface of the body to form a polymerization compressed polyurethane layer or a polyurethane foam layer, (iv) in the fourth operation step, releasing the composite member from the mold cavity, to a method that follows the operation step directly to one another. |