MULTILAYER STRUCTURE WITH CONTROLLED PERMEABILITY

The multi-layer material comprises an inner polymer layer (6) and at least one outer layer (5) of a polymer with a mineral filler designed to adsorb and trap hydrocarbons emitted through the inner layer and reduce the structure's permeability. The mineral filler can be of a zeolite, active carb...

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Bibliographische Detailangaben
Hauptverfasser:	VINCIGUERRA, EMMANUEL, GONZALEZ, SERGE, KLOPFFER, MARIE-HELENE, FLACONNECHE, BRUNO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES JOINTS OR FITTINGS FOR PIPES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The multi-layer material comprises an inner polymer layer (6) and at least one outer layer (5) of a polymer with a mineral filler designed to adsorb and trap hydrocarbons emitted through the inner layer and reduce the structure's permeability. The mineral filler can be of a zeolite, active carbon, carbon nanotubes and mixtures of these. The polymer of the inner layer can contain fillers that reduce permeability, e.g. micrometric fillers such as talc or metal particles, or nanometric ones, such as clays. The material, which can be shaped by extrusion, injection, blowing, rotomoulding or compression, can also contain an intermediate layer (7) and have one surface treated e.g. by fluoridation to reduce its permeability.