MEMBRANE POUR LA PLASMAPHORESE, SON PROCEDE DE FABRICATION ET SA CONSTITUTION
LA PRESENTE INVENTION DECRIT UNE MEMBRANE POUR LA PLASMAPHORESE SOUS FORME DE FILAMENTS CREUX, DE FEUILLES SOUFFLEES OU DE FEUILLES PLATES FABRIQUEE SELON UN PROCEDE DANS LEQUEL UNE SOLUTION DE FILAGE A BASE D'ESTER CELLULOSIQUE EST PRESSEE A TRAVERS UNE FILIERE IMMERGEE DANS UN BAIN COAGULANT,...
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| creator | WERNER BANDEL ET GUSTAV DUNWEG |
| description | LA PRESENTE INVENTION DECRIT UNE MEMBRANE POUR LA PLASMAPHORESE SOUS FORME DE FILAMENTS CREUX, DE FEUILLES SOUFFLEES OU DE FEUILLES PLATES FABRIQUEE SELON UN PROCEDE DANS LEQUEL UNE SOLUTION DE FILAGE A BASE D'ESTER CELLULOSIQUE EST PRESSEE A TRAVERS UNE FILIERE IMMERGEE DANS UN BAIN COAGULANT, EST LAVEE AVEC DE L'EAU EXEMPTE DE SOLVANT, IMPREGNEE AVEC UNE SOLUTION PLASTIFIANTE, PUIS SECHEE.APPLICATION DE CETTE MEMBRANE DANS LE DOMAINE MEDICAL PAR EXEMPLE.
A process for the production of a membrane which comprises forcing a spinning solution comprising from 8 to 25%, by weight, of one or more cellulose esters, from 55 to 92%, by weight, of one or more solvents and optionally up to 20%, by weight, of one or more other additives through a spinning jet immersed in a precipitation bath, exposing the jet of solution to the coagulating effect of the precipitation bath at the boundaries of the jet over a section of precipitation bath which is at least 30 cm long, guiding the coagulated material out of the precipitation bath, washing with water until free from solvent, impregnating with plasticiser solution and drying is disclosed. The present invention also relates to a membrane which comprises distinct, substantially parallelepipedic closed cells juxtaposed to form a honeycomb-like structure all the cell walls having a plurality of holes as pores. |
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A process for the production of a membrane which comprises forcing a spinning solution comprising from 8 to 25%, by weight, of one or more cellulose esters, from 55 to 92%, by weight, of one or more solvents and optionally up to 20%, by weight, of one or more other additives through a spinning jet immersed in a precipitation bath, exposing the jet of solution to the coagulating effect of the precipitation bath at the boundaries of the jet over a section of precipitation bath which is at least 30 cm long, guiding the coagulated material out of the precipitation bath, washing with water until free from solvent, impregnating with plasticiser solution and drying is disclosed. The present invention also relates to a membrane which comprises distinct, substantially parallelepipedic closed cells juxtaposed to form a honeycomb-like structure all the cell walls having a plurality of holes as pores.</description><language>fre</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; AGRICULTURE ; ANIMAL HUSBANDRY ; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS ; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; 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 ; FISHING ; FORESTRY ; GENERAL PROCESSES OF COMPOUNDING ; HARVESTING ; HUMAN NECESSITIES ; HUNTING ; HYGIENE ; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; MOWING ; NATURAL OR ARTIFICIAL THREADS OR FIBRES ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; SPINNING ; TEXTILES ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; TRAPPING ; WORKING-UP</subject><creationdate>1981</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19810828&DB=EPODOC&CC=FR&NR=2476500A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19810828&DB=EPODOC&CC=FR&NR=2476500A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WERNER BANDEL ET GUSTAV DUNWEG</creatorcontrib><title>MEMBRANE POUR LA PLASMAPHORESE, SON PROCEDE DE FABRICATION ET SA CONSTITUTION</title><description>LA PRESENTE INVENTION DECRIT UNE MEMBRANE POUR LA PLASMAPHORESE SOUS FORME DE FILAMENTS CREUX, DE FEUILLES SOUFFLEES OU DE FEUILLES PLATES FABRIQUEE SELON UN PROCEDE DANS LEQUEL UNE SOLUTION DE FILAGE A BASE D'ESTER CELLULOSIQUE EST PRESSEE A TRAVERS UNE FILIERE IMMERGEE DANS UN BAIN COAGULANT, EST LAVEE AVEC DE L'EAU EXEMPTE DE SOLVANT, IMPREGNEE AVEC UNE SOLUTION PLASTIFIANTE, PUIS SECHEE.APPLICATION DE CETTE MEMBRANE DANS LE DOMAINE MEDICAL PAR EXEMPLE.
A process for the production of a membrane which comprises forcing a spinning solution comprising from 8 to 25%, by weight, of one or more cellulose esters, from 55 to 92%, by weight, of one or more solvents and optionally up to 20%, by weight, of one or more other additives through a spinning jet immersed in a precipitation bath, exposing the jet of solution to the coagulating effect of the precipitation bath at the boundaries of the jet over a section of precipitation bath which is at least 30 cm long, guiding the coagulated material out of the precipitation bath, washing with water until free from solvent, impregnating with plasticiser solution and drying is disclosed. The present invention also relates to a membrane which comprises distinct, substantially parallelepipedic closed cells juxtaposed to form a honeycomb-like structure all the cell walls having a plurality of holes as pores.</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>AGRICULTURE</subject><subject>ANIMAL HUSBANDRY</subject><subject>APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS</subject><subject>CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY</subject><subject>DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR</subject><subject>DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY</subject><subject>FISHING</subject><subject>FORESTRY</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>HARVESTING</subject><subject>HUMAN NECESSITIES</subject><subject>HUNTING</subject><subject>HYGIENE</subject><subject>MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>METALLURGY</subject><subject>MOWING</subject><subject>NATURAL OR ARTIFICIAL THREADS OR FIBRES</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SEPARATION</subject><subject>SPINNING</subject><subject>TEXTILES</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TRANSPORTING</subject><subject>TRAPPING</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1981</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPD1dfV1CnL0c1UI8A8NUvBxVAjwcQz2dQzw8A9yDXbVUQj291MICPJ3dnVxVQAiN0enIE9nxxBPoLBriEKwo4Kzv19wiGdIKEiIh4E1LTGnOJUXSnMzKLi5hjh76KYW5MenFhckJqfmpZbEuwUZmZibmRoYOBoaE6EEAHTgLak</recordid><startdate>19810828</startdate><enddate>19810828</enddate><creator>WERNER BANDEL ET GUSTAV DUNWEG</creator><scope>EVB</scope></search><sort><creationdate>19810828</creationdate><title>MEMBRANE POUR LA PLASMAPHORESE, SON PROCEDE DE FABRICATION ET SA CONSTITUTION</title><author>WERNER BANDEL ET GUSTAV DUNWEG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_FR2476500A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>fre</language><creationdate>1981</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>AGRICULTURE</topic><topic>ANIMAL HUSBANDRY</topic><topic>APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS</topic><topic>CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY</topic><topic>DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR</topic><topic>DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY</topic><topic>FISHING</topic><topic>FORESTRY</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>HARVESTING</topic><topic>HUMAN NECESSITIES</topic><topic>HUNTING</topic><topic>HYGIENE</topic><topic>MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>METALLURGY</topic><topic>MOWING</topic><topic>NATURAL OR ARTIFICIAL THREADS OR FIBRES</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SEPARATION</topic><topic>SPINNING</topic><topic>TEXTILES</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TRANSPORTING</topic><topic>TRAPPING</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>WERNER BANDEL ET GUSTAV DUNWEG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WERNER BANDEL ET GUSTAV DUNWEG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MEMBRANE POUR LA PLASMAPHORESE, SON PROCEDE DE FABRICATION ET SA CONSTITUTION</title><date>1981-08-28</date><risdate>1981</risdate><abstract>LA PRESENTE INVENTION DECRIT UNE MEMBRANE POUR LA PLASMAPHORESE SOUS FORME DE FILAMENTS CREUX, DE FEUILLES SOUFFLEES OU DE FEUILLES PLATES FABRIQUEE SELON UN PROCEDE DANS LEQUEL UNE SOLUTION DE FILAGE A BASE D'ESTER CELLULOSIQUE EST PRESSEE A TRAVERS UNE FILIERE IMMERGEE DANS UN BAIN COAGULANT, EST LAVEE AVEC DE L'EAU EXEMPTE DE SOLVANT, IMPREGNEE AVEC UNE SOLUTION PLASTIFIANTE, PUIS SECHEE.APPLICATION DE CETTE MEMBRANE DANS LE DOMAINE MEDICAL PAR EXEMPLE.
A process for the production of a membrane which comprises forcing a spinning solution comprising from 8 to 25%, by weight, of one or more cellulose esters, from 55 to 92%, by weight, of one or more solvents and optionally up to 20%, by weight, of one or more other additives through a spinning jet immersed in a precipitation bath, exposing the jet of solution to the coagulating effect of the precipitation bath at the boundaries of the jet over a section of precipitation bath which is at least 30 cm long, guiding the coagulated material out of the precipitation bath, washing with water until free from solvent, impregnating with plasticiser solution and drying is disclosed. The present invention also relates to a membrane which comprises distinct, substantially parallelepipedic closed cells juxtaposed to form a honeycomb-like structure all the cell walls having a plurality of holes as pores.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AGRICULTURE ANIMAL HUSBANDRY APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON 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 FISHING FORESTRY GENERAL PROCESSES OF COMPOUNDING HARVESTING HUMAN NECESSITIES HUNTING HYGIENE MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS MEDICAL OR VETERINARY SCIENCE METALLURGY MOWING NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TRAPPING WORKING-UP |
| title | MEMBRANE POUR LA PLASMAPHORESE, SON PROCEDE DE FABRICATION ET SA CONSTITUTION |
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