Patent ID: 9133754
Filing Date: 2015-09-15
Classification: B29C,B32B,D04H,F01N,Y10T

Abstract:
1. A method for producing sound-damping, sound-absorbing or insulating molded material, said molded material comprising fiber material, wherein said method has the following steps: a) winding the fibrous material around at least two carriers which are spaced apart from one another, for producing a wound blank, b) permanently solidifying the wound blank which is presented on the carriers, for the formation of the sound-damping, sound-absorbing or insulating molded material, wherein the permanent solidification of the wound blank for the formation of the molded material on the carriers takes place by means of air entanglement, stitching, linking, knotting, needling, felting or crocheting, and wherein the fibrous material is in the form of glass-mineral fibers, carbon fibers, or silicate-glass fibers, or blends thereof.