| abstract |
A multi-layered lightweight construction board containing a support core and two cover layers, the individual layers of which are connected to one another and the support core of which consists of individual tube sections fused laterally to one another, is characterized in that the tube sections are constructed in two layers, the outer layer at the softening point by 10 to 90 ° C is lower than the inner layer.n n n The lightweight board consists of compatible thermoplastic materials, so that the board can be recycled according to the usual processing methods for thermoplastics. |