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A leather substitute made from aqueous compositions by paper-making techniques contains 50-80% by weight of a non-fibrous polyurethane elastomer and 20-50% of a mixture of long fibres (preferably synthetic) and leather fibres (possibly tanned). The leather fibres are at least 33% of the total fibre...

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Bibliographische Detailangaben
Hauptverfasser:	J. FRASER,WILLIAM, JUN.,FRANK SWEDISH, E. RAYMOND,ALBERT
Format:	Patent
Sprache:	ger
Schlagworte:	BRAIDING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FIBREBOARD FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR KNITTING LACE-MAKING LAUNDERING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS ORFROM PAPIER-MACHE METALLURGY NON-WOVEN FABRICS ORGANIC MACROMOLECULAR COMPOUNDS PAPER-MAKING PERFORMING OPERATIONS PRODUCTION OF CELLULOSE TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TRIMMINGS WADDING WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL
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Beschreibung
Zusammenfassung:	A leather substitute made from aqueous compositions by paper-making techniques contains 50-80% by weight of a non-fibrous polyurethane elastomer and 20-50% of a mixture of long fibres (preferably synthetic) and leather fibres (possibly tanned). The leather fibres are at least 33% of the total fibre weight and at least 10% of the total weight. A cheap process gives a product whose properties are comparable to a best quality leather. The material is flexible, permeable to air and uniform in composition. Uses are for footwear. In the aqueous composition the polyurethane is in the form of globules or agglomerates, the average size being 1-100 microns.