Insulation element
AssigneeIllbruck GmbH
InventorsRainer Arndt, Hans-Rudolf Czerny
Life of this patent
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Abstract
An insulation member (1) based on non-woven material, wherein In order to provide the insulation member based on non-woven it material, which is distinguished by fulfilling one or more requirements such as a high level of sound absorption and sound damping, high heat insulation and low formation of liquid water at high temperature gradients and high humidity gradients, a layered construction is provided from different non-woven materials such as padding-type (fleece) non-woven material or melt-extruded non-woven spun material.
Claims8
Insulation member comprising in order a thermoplastic film outer layer (2), a melt-extruded non-woven spun material layer (3), a fleece non-woven material layer (4), a melt-extruded non-woven spun material layer (5), a thermoplastic film outer layer (2′) wherein the weight of the non-woven layers being substantially between 50 and 800 g/m2, and wherein the film outer layers (2, 2′) are welded at the edge to hold the layers together, and wherein the non-woven materials are made of polypropylene sulfide (pps) or a mixture of pps and organic or inorganic fibers.
Dependencies are inferred from the claim text.