01.10.05
A composite laminate with two main external face layers and a plurality of internal layers between them was patented. At least two first sheet layers each comprises a first particulate aggregate and at least three-second sheet layers each comprises a second particulate aggregate. Two of the second sheet layers constitute the two main external faces of the composite laminate. Each internal second sheet layer is located between two first sheet layers. The thickness of the internal second sheet layers is greater than the thickness of the external face second sheet layers. A part of the first particulate aggregate of the first sheet layers is penetrated into the second sheet layers and bonds the first sheet layers to the second sheet layers.