Cellulose dialysis hollow fibre membrane - contg. several layers in which thickness increases and decreases while wall thickness remains constant

Hollow fibre dialysis membrane of cellulose, regenerated from cuprammonium solns., consists of 2 or more strongly adhering layers with a through-going cavity and having a constant wall thickness. In at least 2 layers, layer thickness along the circumference increases continuously at least once to a...

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Bibliographische Detailangaben
1. Verfasser:	WERNER HENNE ET GUSTAV DUNNWEG
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS MEDICAL OR VETERINARY SCIENCE NATURAL OR ARTIFICIAL THREADS OR FIBRES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPINNING TEXTILES TRANSPORTING
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Beschreibung
Zusammenfassung:	Hollow fibre dialysis membrane of cellulose, regenerated from cuprammonium solns., consists of 2 or more strongly adhering layers with a through-going cavity and having a constant wall thickness. In at least 2 layers, layer thickness along the circumference increases continuously at least once to a max. thickness and decreases to a min. thickness. At each circumference position, the layer thicknesses are restored to a wall thickness which remains constant along circumference. High permeability is achieved while leakage hazard frequency is reduced to less than one-tenth. LA MEMBRANE POUR DIALYSE SOUS FORME DE FILAMENT CREUX 1 CONSTITUEE PAR DEUX, OU PLUS DE DEUX, COUCHES DE CELLULOSE, EST CARACTERISEE PAR LE FAIT QU'AU MOINS POUR DEUX COUCHES 2, 3, L'EPAISSEUR DES COUCHES AUGMENTE CONTINUELLEMENT AU MOINS UNE FOIS JUSQU'A UNE EPAISSEUR MAXIMALE ET DIMINUE CONTINUELLEMENT AU MOINS UNE FOIS JUSQU'A UNE EPAISSEUR MINIMALE ET QUE LES EPAISSEURS DES COUCHES SE COMPLETENT POUR FORMER UNE EPAISSEUR DE PAROI CONSTANTE.UTILISATION DE CETTE MEMBRANE POUR DES REINS ARTIFICIELS, PAR EXEMPLE.