THERMOPLASTIC POLYURETHANE COMPOSITION

A thermoplastic polyurethane composition includes a thermoplastic polyurethane (TPU) and a polyoxymethylene. The thermoplastic polyurethane composition comprises 50 to 95 parts by weight of the TPU and 5 to 50 parts by weight of the polyoxymethylene, per 100 parts by weight of the thermoplastic poly...

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Bibliographische Detailangaben
Hauptverfasser:	DEGROSS, JEFFREY, L, KOWALSKI, TERRY, JUSTICE, MARK, E, MANITIU, MIHAI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A thermoplastic polyurethane composition includes a thermoplastic polyurethane (TPU) and a polyoxymethylene. The thermoplastic polyurethane composition comprises 50 to 95 parts by weight of the TPU and 5 to 50 parts by weight of the polyoxymethylene, per 100 parts by weight of the thermoplastic polyurethane composition. The thermoplastic polyurethane composition has an Izod notched impact of greater than 0.5 fflb/in at -40°C as determined by ASTM D256 10, Method A, and an elastic modulus of greater than 700 psi at 130°C as determined by ASTM D412. A fluid transfer tube is formed from the thermoplastic polyurethane composition. Cette invention concerne une composition de polyuréthanne thermoplastique contenant un polyuréthanne thermoplastique (TPU) et un polyoxyméthylène. La composition de polyuréthanne thermoplastique comprend de 50 à 95 parties en poids du TPU et de 5 à 50 parties en poids du polyoxyméthylène, pour 100 parties en poids de la composition de polyuréthanne thermoplastique. La composition de polyuréthanne thermoplastique présente une résilience Izod (entaillé) supérieure à 0,5 ft-lb/in à -40 °C selon la mesure ASTM D256 10, Méthode A, et un module d'élasticité supérieur à 700 psi à 130 °C selon la mesure ASTM D412. La composition de polyuréthanne thermoplastique permet d'obtenir un tube de transfert de fluides.