Abstract: The present invention relates to a novel polyamide alloy composition that is useful for forming objects that may be used for the storage and transport of fluids. The polyamide alloy is a blend of at least one polyamide and at least one modified polyolefin having both medium to hard and soft domains. The polyamide forms the continuous phase of the alloy. The alloy may also contain, and preferably does contain, a thermal and light stabilization compound, at least one unmodified polyolefin, and at least one plasticizer. The polyamide alloy composition is useful in forming tanks, hoses and tubes used in the transport of liquid or gaseous fluids, including fluids under pressure.

Abstract: The present invention relates to a symmetrical multi-layer tube based on polyamide and ethyl vinyl alcohol (EVOH) or polyvinyl alcohol (PVOH) for transferring fluids. As examples of tubes for transferring fluids, mention may be made of fuel (gasoline, diesel fuel) pipes, in particular for carrying fuel from the tank to the engine of motor vehicles. Other examples of fluid transfer include, but are not limited to, the fluids used in fuel cells, CO2 systems for cooling, hydraulic systems, cooling circuits and air-conditioning circuits, and medium-pressure power transfer.

Abstract: The present invention relates to a symmetrical multi-layer tube based on polyamide and ethyl vinyl alcohol (EVOH) or polyvinyl alcohol (PVOH) for transferring fluids. As examples of tubes for transferring fluids, mention may be made of fuel (gasoline, diesel fuel) pipes, in particular for carrying fuel from the tank to the engine of motor vehicles. Other examples of fluid transfer include, but are not limited to, the fluids used in fuel cells, CO2 systems for cooling, hydraulic systems, cooling circuits and air-conditioning circuits, and medium-pressure power transfer.

Abstract: The present invention concerns multi-layer structures comprising at least a layer of a thermoplastic compound containing nanofillers and at least a layer of rubber. These structures can be converted to bottles, reservoirs, containers, pipes, hoses and vessels of all sorts. The structures of the invention are of interest for the cryogenic fluids used in air conditioning, such as for example HFAs and HFCs.

Abstract: The present invention relates to a novel polyamide alloy composition that is useful for forming objects that may be used for the storage and transport of fluids. The polyamide alloy is a blend of at least one polyamide and at least one modified polyolefin having both medium to hard and soft domains. The polyamide forms the continuous phase of the alloy. The alloy may also contain, and preferably does contain, a thermal and light stabilization compound, at least one unmodified polyolefin, and at least one plasticizer. The polyamide alloy composition is useful in forming tanks, hoses and tubes used in the transport of liquid or gaseous fluids, including fluids under pressure.

Abstract: The present invention relates to a multilayer structure based on rubber and on polyamide-block graft copolymer, comprising in succession: a) optionally a first, inner layer (1) formed of a rubber or of a polyamide, b) at least one layer (2) based on a polyamide-block graft copolymer composed of a polyolefin backbone and at least one polyamide graft, wherein the grafts are attached to the backbone by the residues of an unsaturated monomer (X) having a function which is capable of reacting with an amine-terminated polyamide, the residues of the unsaturated monomer (X) being attached to the backbone by grafting or copolymerization via its double bond, c) a second layer (3) formed of a rubber, d) optionally a binder layer (4), e) an outer layer (5) formed of a rubber, f) optionally a reinforcing layer situated between two of the preceding layers or within said layers.

Abstract: The present invention relates to a low oligomer conductive polyamide composition, and articles of manufacture useful in the art of the transport of fluids such as solvents, polar fluids and fuels for applications such as fuel hoses or tubing for internal combustion engines. The material in the hose which is in contact with the fuel must be resistant to the extraction of materials from the hose which precipitate into the fuel or have the potential to clog fuel filters, fuel injectors and the like which have extremely small orifices and, thus, low tolerance for particulates in the fuel. As used herein, the term “low precipitate polyamide” means that the polyamide has been washed or extracted to reduce the level of components such as oligomers (low molecular weight polyamide), solids or semi-solids which would otherwise be released by the polyamide after exposure to the transported fluid and/or precipitate into the fluid.

Abstract: The present invention concerns multi-layer structures comprising at least a layer of a thermoplastic compound containing nanofillers and at least a layer of rubber. These structures can be converted to bottles, reservoirs, containers, pipes, hoses and vessels of all sorts. The structures of the invention are of interest for the cryogenic fluids used in air conditioning, such as for example HFAs and HFCs.