POLYMER COMPOSITIONS, POLYMER MICROFIBERS, POLYMER NANOFIBERS AND APPLICATIONS INCLUDING FILTER STRUCTURE

Polymers, polymer microfibers, polymer nanofibers, and uses including filter structures. There is provided a filter medium comprising a fine fiber layer formed on and adhered to a filter substrate, wherein the fine fiber layer has fibers with a diameter of about 0.001-2 micro-meter. The filtering st...

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Bibliographische Detailangaben
Hauptverfasser:	GOGINS MARK A, CHUNG HOO Y, HALL JOHN R B, WEIK THOMAS M, CROFOOT DOUGLAS G
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BRAIDING CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TRIMMINGS USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WADDING
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Beschreibung
Zusammenfassung:	Polymers, polymer microfibers, polymer nanofibers, and uses including filter structures. There is provided a filter medium comprising a fine fiber layer formed on and adhered to a filter substrate, wherein the fine fiber layer has fibers with a diameter of about 0.001-2 micro-meter. The filtering structure maintains at least 30% filtering efficiency after being exposed to environment at the temperature of 60DC (140DF) for an hour, and the efficiency was measured according to ASTM-1215-89 by using 0.78 micromete monodisperse spherical polystyrene particles at the speed of 6.1 meter/min (20fpm).The fibers of the fine fiber layer comprise a polymer selected from the group consisting of polyvinyl chloride, polyvinylidene fluoride, polystyrene, polyvinyl alcohol, polyacrylonitrile, polyurethane, polyester, polypropylene, cellulose ether, cellulose ester, polysulfone, modified polysulfone, polyarylene oxide, and mixtures and copolymers thereof. 聚合物，聚合物微米纤维，聚合物纳米纤维和包括过滤器结构的用途。提供了一种过滤介质，所述过滤介质包括形成在过滤基材上并附着过滤基材上的细纤维层，