Patent ID: 8833233
Filing Date: 2014-09-16
Classification: B32B,F41H

Abstract:
1. A bullet-resistant transparent laminate composite comprising: at least two plates arranged one behind the other and at a spacing relative to each other in the direction of threat, each of said at least two plates being formed of a transparent first material with a modulus of elasticity of at least 1,500 N/mm at least one respective intermediate layer of a transparent second material with a lower modulus of elasticity than that of the first material, said at least one intermediate layer being between said at least two plates, wherein the transparent second material is a polyurethane (PU), a thermoplastic polyurethane (tPU), a polyvinyl chloride (PVC), or polycarbonate (PC) based material, wherein the layer thicknesses of the plates and the at least one intermediate layer are so selected that the overall layer structure of the layer composite of plates and the at least one intermediate layer has an average modulus of elasticity which is at least 20% and at maximum 60% lower in comparison with a block made exclusively from the first material and of the same overall thickness, wherein the laminate composite in the direction of threat is of an overall thickness in the region of 20 mm to 300 mm; and wherein the layer thickness of the at least one intermediate layer is 3.5 mm to 7.5 mm.