Ems-american Grilon Inc.

Roland Leimbacher

Eduard Schmid

The present invention relates to thermoplastically formable composite materials of reinforcing fibers in a polyamide 12 matrix, characterized in that the polyamide 12 matrix consists of anionically polymerized laurin-lactam maximally containing 15 weight-% of co-monomers and selectively additives which are determined on the basis of production, processing and use. The invention furthermore relates to a process for producing these composite materials, in accordance with which an activated anionic lactam 12 melt is prepared, which penetrates the fiber arrangement in the liquid state, so that it forms the matrix for a shaped body, the activated melt is final-polymerized under the effects of temperature and pressure in a mold or a tool in such a way that the shape is achieved, and the pre-formed part is subjected to an after-shaping step under the effects of pressure and temperature, if desired. The shaped bodies in accordance with the invention can be used for for producing protective channels, protective elements, support elements, load-bearing frame elements, cover elements, cage structures, structures for transmission systems, roofing of lightweight material, components of sporting goods, machine elements, components for ship and boat building, body and cover elements for vehicle construction, pipes for transporting media and protective conduits, particularly in the electrical field.

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Domat/Ems, Switzerland

Roland Leimbacher