Patent ID: 8465840

Claim:
A polyurethane sandwich component obtained by a process of (i) applying a polyurethane system to at least one reinforcement fiber layer on a core layer, to yield a first component, (ii) placing the first component from (i) into a mold, and giving the first component from (i) a three-dimensional shape by compressing the core layer in the mold, and hardening the polyurethane system, to yield a molding, (iii) removing the molding from the mold, and (iv) optionally, subjecting the molding to further operations, wherein the polyurethane sandwich component comprises the core layer and the polyurethane system, the polyurethane system comprising: a) at least one polyisocyanate; b) at least one isocyanate-reactive compound; c) at least one carboxylic salt of an amine catalyst; d) optionally, at least one further catalyst; e) optionally, a reactive chain extender comprising at least two groups reactive toward isocyanates, wherein at least one group reactive toward isocyanates is a free, primary NH 2 group; and f) optionally, at least one further additive, and, based on one equivalent of amine of the amine catalyst, from 0.5 to 1.5 equivalents of acid groups of a carboxylic acid are comprised.