Abstract: A sound-attenuating composite component comprising a honeycomb and in each case at least one insert body in at least some honeycomb cells, and a production method therefor. The respective insert body has a main axis, a first end, a second end, and a cohesive surface and is inserted with the main axis in the direction of the honeycomb depth. The cohesive surface has surface regions spaced from one another in the axial direction and which face one another and overlap in a projection onto a plane lying perpendicular to the main axis in order to demarcate a passage for sound waves in the axial direction. The course of the cohesive surface through these surface regions from the first end to the second end encircles and/or repeatedly crosses the main axis.

Abstract: A transport case for a folding bicycle has a base with a first wall element connected along an edge. A connection device can be used to fix the first wall element to an element of the transport case to produce an interior of a first volume. Another connection device can be used to fix the first wall element to an element of the transport case to produce an interior of a second volume. The first volume is bigger than the second volume.

Abstract: A transport case for a folding bicycle has a base with a first wall element connected along an edge. A connection device can be used to fix the first wall element to an element of the transport case to produce an interior of a first volume. Another connection device can be used to fix the first wall element to an element of the transport case to produce an interior of a second volume. The first volume is bigger than the second volume.

Abstract: The invention relates to a method of producing a film comprising at least one layer of a polymer selected from among thermoplastic fluoro-polymer and polymers (A). The inventive method consists in using extrusion blow moulding to coextrude the following: a) at least one layer of a thermoplastic fluoro-polymer and at least one layer of polymer (A); or b) at least one layer of a thermoplastic fluoro-polymer containing charges and optionally at least one other fluoro-polymer layer; or c) at least one layer of polymer (A), the layers extruded in a), b) or c) adhering to one another; d) a layer of another thermoplastic polymer (B) such that it forms a layer which is adjacent to the assembly of layers extruded in a), b) or c); e) optionally another layer of (B) which is adjacent to the assembly of layers extruded in a), b) or c) on the side opposite that of the layer extruded in d).