Patent ID: 9242428
Filing Date: 2016-01-26
CPC Classification: B29C,B29L,B32B,Y10T

Claim Text:
1. A method of producing a multilayer component for a motor vehicle, comprising the following steps: providing a mat-like multilayer structure, which comprises at least two outer layers and a core layer, the core layer being arranged between the two outer layers, the core layer comprising a fibre tangle, which contains a binder material and a reinforcing fibre material, a melting point of the binder material being lower than a melting point of the reinforcing fibre material, the outer layers comprising a fibre tangle containing a binder material and a reinforcing fibre material having a different proportion by weight of binder material and reinforcing fibre material than the core layer; placing the multilayer structure in a press; heating the multilayer structure in the press with exposure to pressure, such that the binder material melts, while the reinforcing fibre material retains its fibre structure, resulting in formation of a semi-finished product; lofting the semi-finished product; processing the semi-finished product to yield the multilayer component; and cooling the component; wherein providing the multilayer structure comprises selecting said structure such that the core layer comprises at least two superposed core sublayers, each core sublayer comprising a fibre tangle containing a binder material and a reinforcing fibre material, a melting point of the respective binder material being lower for each core sublayer than a melting point of the respective reinforcing fibre material, and the binder materials of the core sublayers being mutually compatible.