FLEXIBLE ELASTIC POLYURETHANE FILMS, A PROCESS FOR THEIR PREPARATION AND THEIR USE

The present invention deals with flexible elastic polyurethane films, efficaciously having a thickness from 0.3 to 3 mm, prepared by sintering powdered thermoplastic polyurethanes, having: (a) a melt index of from 50 to 350, measured at 190.degree.C with a compression force of 21.6 kg, and (b) a Sho...

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Bibliographische Detailangaben
Hauptverfasser:	LEHR, GERHARD, ZEITLER, GERHARD
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention deals with flexible elastic polyurethane films, efficaciously having a thickness from 0.3 to 3 mm, prepared by sintering powdered thermoplastic polyurethanes, having: (a) a melt index of from 50 to 350, measured at 190.degree.C with a compression force of 21.6 kg, and (b) a Shore A hardness of from 80 to 98, preferably while using from 0.05 to 1 part by weight of powdered aluminum oxide and/or silica gel per 100 parts by weight of said thermoplastic polyurethane, Utilizing a heated mold. The polyurethane films are preferably used for coating molded articles used in the interior of motor vehicles.