Expandable substrates, which are referred to as blanks, are created by compressing thermobonded nonwovens after heating the binder material above its melting temperature, and then cooling the compressed nonwovens so that the binder material hardens and holds the fibers of the nonwoven together in a compressed configuration with stored kinetic energy. A mold for the component to be manufactured can be partially filled with a number of boards (or blanks) in a stacked, vertically, adjacent or even random orientation. Upon application of heat to the boards or blanks or parts in the mold, the binder material is melted so as to allow the nonwoven material to expand in one or more directions, and thereby fill all or part of the mold. Upon cooling, the binder material again hardens, and the molded component is retrieved from the mold.

In accordance with a first aspect of the invention, the exterior trim part for a vehicle comprises a fibrous porous structural layer. The exterior trim part further comprises at least one at least sectional perforated film layer, which is made of thermoplastic polyurethane with a melting temperature according to DSC of at least 140 C. The film layer is materially connected to the fibrous porous structural layer, at least in sections.

A limb for a breathing circuit manufactured from very thin walled polymer materials has an elongate axial reinforcing spine lying freely inside the conduit and fixed to each end connector. The spine is laterally compliant but axially stiff. The spine provides resistance to tensile and compressive loads on the conduit, including that induced by prevailing internal pressures.

A porous body including: carbon fibers (A) at more than 50% by weight and not more than 99% by weight, and organic fibers (B) having a tensile elongation at break of 2.5 to 100% at not less than T % by weight and less than 50% by weight, as reinforcing fibers; and a resin (C); the reinforcing fibers being fixed by the resin (C), the porous body having a porosity of 10 to 95% by volume. A porous body of a fiber-reinforced plastic with excellent lightweightness, impact strength, and rigidity is provided.