STRONG, AIR PERMEABLE MEMBRANES OF POLYTETRAFLUOROETHYLENE

Microporous membranes are described and characterized as having a morphological microstructure of very highly elongated nodes interconnected b y fibrils which form a structural network of voids or pores through the spaces between the nodes and fibrils, which voids or pores extend from one side of th...

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Bibliographische Detailangaben
Hauptverfasser:	RUDOLF, CHRISTIANE, HUBIS, DANIEL E, BRANCA, PHILLIP A, BURGER, WOLFGANG, TILLMANNS, RALF
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 CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL PROCESSES OF COMPOUNDING MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MANUFACTURE OR TREATMENT THEREOF METALLURGY NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS,MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES ASDISCRETE UNITS NANOTECHNOLOGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRINTED CIRCUITS SEPARATION SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Microporous membranes are described and characterized as having a morphological microstructure of very highly elongated nodes interconnected b y fibrils which form a structural network of voids or pores through the spaces between the nodes and fibrils, which voids or pores extend from one side of the membrane to the other. The membranes are highly uniform in terms of mass per volume, have very high strength and a very open microstructure.