Abstract: A first plastic recyclate is used for a tube of a land vehicle, in particular of a road vehicle. The tube comprises a first layer and a second layer, wherein the first layer and the second layer abut against each other. The first layer has the first plastic recyclate, wherein the second layer comprises a first virgin plastic. The first plastic recyclate and the first virgin plastic belong to the same plastic species, for example to the plastic species of polyamides or the plastic species of polyolefins.

Abstract: A tube and use of a tube for guiding hydrogen, preferably in a vehicle. The tube encloses a lumen and comprises several layers, wherein the layers of the tube includes at least two barrier layers. An inner barrier layer comprises a first plastic, and an outer barrier layer comprises a second plastic. The barrier layers are separated from each other by a separating layer, and the tube has a supporting layer enclosed by the inner barrier layer. The first plastic is a vinyl alcohol plastic, and the second plastic is a vinyl alcohol plastic.

Abstract: Multilayered motor vehicle tube, wherein the tube has at least five layers with the following layer structure from the outside to the inside: An outer layer made of at least one polymer from the group “polyamide, polyolefin,” a first carrier layer made of polyamide, a barrier layer made of at least one component from the group “ethylene vinyl alcohol copolymer (EVOH), fluoropolymer,” a second carrier layer made of polyamide, an inner layer made of a thermoplastic polyurethane (TPU). The total layer thickness of the tube is 0.7 to 2 mm.

Abstract: Use of tubing as temperature control tubing in motor vehicles, wherein a temperature control medium is passed through the tubing. The tubing has the following layer structure from the outside inward: an exterior layer of at least one polyolefin, a first adhesive barrier, a barrier layer of at least one polyamide, a second adhesive barrier and an interior layer of at least one polyolefin. The entire wall thickness of the tubing is 0.5 to 3.5 mm.

Abstract: Multi-layer motor vehicle tube for conducting at least one fluid medium, in particular for conducting of motor fuels, wherein the tube comprises at least five layers, The tube features the following layer structure, from outside to inside: an outside layer made of at least one polyamide, a first adhesion-promoting layer, a barrier layer with barrier properties, a second adhesion-promoting layer, an inside layer made of at least one thermoplastic polyurethane (TPU) and/or at least one partly aromatic polyamide (PPA). The total layer thickness of the tube amounts to 0.7 to 3 mm.

Abstract: An internal tube for tanks, particularly fuel tanks of automobiles, wherein the tube has a fluid channel and a tube wall that encloses the fluid channel, wherein the tube wall has a multilayer design and is composed of at least three layers, with one inner layer based on at least one polyolefin being provided, with at least one central layer based on at least one polyamide being present, and with one outer layer based on at least one polyolefin being provided.

Abstract: Use of tubing as temperature control tubing in motor vehicles, wherein a temperature control medium is passed through the tubing. The tubing has the following layer structure from the outside inward: an exterior layer of at least one polyolefin, a first adhesive barrier, a barrier layer of at least one polyamide, a second adhesive barrier and an interior layer of at least one polyolefin. The entire wall thickness of the tubing is 0.5 to 3.5 mm.

Abstract: An internal tube for tanks, particularly fuel tanks of automobiles, wherein the tube has a fluid channel and a tube wall that encloses the fluid channel, wherein the tube wall has a multilayer design and is composed of at least three layers, with one inner layer based on at least one polyolefin being provided, with at least one central layer based on at least one polyamide being present, and with one outer layer based on at least one polyolefin being provided.

Abstract: A multilayered motor vehicle pipeline, wherein the pipeline has at least two layers, preferably at least three layers of plastic. At least one surface of at least one layer connected to another layer is configured profiled, wherein the profiling has maxima and minima. The height difference ?h between the maxima and the minima directly adjacent to the maxima is between 1 and 100 ?m.

Abstract: Multi-layered fuel feed pipe, wherein the feed pipe comprises at least five layers with the following layer structure from the inside to the outside: an innermost layer consisting of at least one polymer from the group “polyamide, fluoropolymer, polyphenylene sulfide, polybutylene naphthalate”, a first support layer consisting of polyamide, a barrier layer, a second support layer consisting of polyamide, an outer layer consisting of at least one polymer from the group “polyamide, polyphenylene sulfide, polyphthalamide”.

Abstract: A multilayered motor vehicle pipeline, wherein the pipeline has at least two layers, preferably at least three layers of plastic. At least one surface of at least one layer connected to another layer is configured profiled, wherein the profiling has maxima and minima. The height difference ?h between the maxima and the minima directly adjacent to the maxima is between 1 and 100 ?m.

Abstract: Multi-layered fuel feed pipe, wherein the feed pipe comprises at least five layers with the following layer structure from the inside to the outside: an innermost layer consisting of at least one polymer from the group “polyamide, fluoropolymer, polyphenylene sulfide, polybutylene naphthalate”, a first support layer consisting of polyamide, a barrier layer, a second support layer consisting of polyamide, an outer layer consisting of at least one polymer from the group “polyamide, polyphenylene sulfide, polyphthalamide”.

Abstract: Multilayer plastic pipe, in particular a multilayer automotive pipeline, is disclosed having the following layers from the outside to inside: a substrate layer of polyamide and/or a blend with a polyamide; a first barrier layer of a barrier layer plastic selected from the group of “ethylene-vinyl alcohol copolymer (EVOH), polyvinylidene fluoride (PVDF), and ethylene-tetrafluoroethylene copolymer (ETFE)” or consisting of a metal foil; at least one separating layer; a second barrier layer consisting of a barrier layer plastic selected from the group consisting of “ethylene-vinyl alcohol copolymer (EVOH), polyvinylidene fluoride (PVDF), and ethylene-tetrafluoroethylene copolymer (ETFE)” or of a metal foil. The separating layer may include an adhesive and/or a polyamide layer or a blend with a polyamide. The barrier layers of a tube may be made of the same material or different materials selected from the identified barrier materials. The innermost layer of the tube may include a conductive substance.