Thermoplastically processable Polyurethane moulding compound

A thermoplastic polyurethane molding composition is prepared by reaction of 1,6-hexamethylenediisocyanate, an aliphatic poly (mol. wt. of 450-4000 g/mol; OH number 20-235) and a chain extender. A thermoplastically processable polyurethane molding composition (I) is free of low molecular weight cycli...

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Bibliographische Detailangaben
Hauptverfasser:	WAGENER, SILKE, MUEHLFELD, HORST
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING LAUNDERING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WORKING-UP
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Beschreibung
Zusammenfassung:	A thermoplastic polyurethane molding composition is prepared by reaction of 1,6-hexamethylenediisocyanate, an aliphatic poly (mol. wt. of 450-4000 g/mol; OH number 20-235) and a chain extender. A thermoplastically processable polyurethane molding composition (I) is free of low molecular weight cyclic oligourethanes has a high resistance to light. (I) is obtained by reaction of an aliphatic polyol having a molecular weight of 450-4,000 g/mol an OH number of 20-235, preferably a polyadipate, polycaprolactone, polycarbonate, polytetrahydrofuran and/or corresponding poly with 1,6-hexamethylenediisocyanate (HMD) and a chain extender, preferably 1,5-pentanediol, 1,6-hexanediol or 1,4-cyclohexanediol an equivalent ratio of 1:1.5-1:14.0 (HMD to polyol), whereby the NCO number is 95-105 (quotient of the equivalent ratio of isocyanate groups to the sum of hydroxyl groups of the polyol and chain extender multiplied by 100)