PROCESSING AID FOR THERMOPLASTIC POLYURETHANES

Processing aid comprising a) 10-50% by weight of hydrophobized, at least partially aggregated, metal oxide particles b) 20-75% by weight of one or more thermoplastic polyurethanes, c) 0.5-50 by weight of one or more prepolymers comprising isocyanate groups the sum of the constituents a) to c) amount...

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Bibliographische Detailangaben
Hauptverfasser:	WELKER, THOMAS, LAGNEAUX, DIDIER, MENZEL, FRANK, KUHN, DIETER, BOES, ULRICH, KINZLINGER, UWE, SAUTEL, HENRI, SCHACHTELY, UWE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	Processing aid comprising a) 10-50% by weight of hydrophobized, at least partially aggregated, metal oxide particles b) 20-75% by weight of one or more thermoplastic polyurethanes, c) 0.5-50 by weight of one or more prepolymers comprising isocyanate groups the sum of the constituents a) to c) amounting to at least 80% by weight, based on the processing aid. La présente invention concerne un adjuvant de traitement comprenant a) de 10 à 50 % en poids de particules d'oxyde de métal au moins partiellement agrégées, rendues hydrophobes, b) de 20 à 75 % en poids d'un ou plusieurs polyuréthanes thermoplastiques, c) de 0,5 à 50 % en poids d'un ou plusieurs prépolymères comprenant des groupes isocyanate, la somme des constituants a) à c) s'élevant à au moins 80 % en poids, sur la base de l'adjuvant de traitement.