Process for the production of cellulosic moulded bodies

Process for the production of cellulosic moulded bodies

The invention relates to a process for the production of cellulosic moulded bodies, flat and tubular films and cellulosic membranes in the form of flat or tubular films whereby a solution of cellulose in an aqueous tertiary amine oxide is extruded using an extrusion nozzle whereby the solution can a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Gspaltl, Peter, Schlossnikl, Christian, Kalleitner, Johann, Firgo, Heinrich
Format: Patent
Sprache:eng
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator Gspaltl, Peter
Schlossnikl, Christian
Kalleitner, Johann
Firgo, Heinrich
description The invention relates to a process for the production of cellulosic moulded bodies, flat and tubular films and cellulosic membranes in the form of flat or tubular films whereby a solution of cellulose in an aqueous tertiary amine oxide is extruded using an extrusion nozzle whereby the solution can as the case may be also contain additives such as stabilising and softening agents, pore formers and so on whereby a moulded solution results which has two surfaces and the extruded moulded solution is led over a gap into a precipitation bath and drawn off from the precipitation bath. The invention relates to a process for the production of cellulosic moulded bodies in the form of flat or tubular films and cellulosic membranes in the form of flat or tubular films whereby a solution of cellulose in an aqueous tertiary amine oxide is extruded using an extrusion nozzle whereby the solution can as the case may be also contain additives such as stabilizing and softening agents, pore formers and so on whereby a moulded solution results which has two surfaces and the extruded moulded solution is led over a gap into a precipitation bath and drawn off from the precipitation bath. The process in accordance with the invention is characterized in that the two surfaces of the moulded solution in the gap are each exposed to at least one gaseous medium whereby the medium to which the first surface is exposed differs from the medium to which the second surface is exposed in composition, properties and/or the state of motion.
format Patent
fullrecord <record><control><sourceid>uspatents_EFH</sourceid><recordid>TN_cdi_uspatents_grants_06517758</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>06517758</sourcerecordid><originalsourceid>FETCH-uspatents_grants_065177583</originalsourceid><addsrcrecordid>eNrjZDAPKMpPTi0uVkjLL1IoyUhVKCjKTylNLsnMz1PIT1NITs3JKc3JL85MVsjNL81JSU1RSMpPyUwt5mFgTUvMKU7lhdLcDApuriHOHrqlxQWJJal5JcXx6UWJIMrAzNTQ3NzUwpgIJQC2KS8M</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Process for the production of cellulosic moulded bodies</title><source>USPTO Issued Patents</source><creator>Gspaltl, Peter ; Schlossnikl, Christian ; Kalleitner, Johann ; Firgo, Heinrich</creator><creatorcontrib>Gspaltl, Peter ; Schlossnikl, Christian ; Kalleitner, Johann ; Firgo, Heinrich ; Lenzing Aktiengesellschaft</creatorcontrib><description>The invention relates to a process for the production of cellulosic moulded bodies, flat and tubular films and cellulosic membranes in the form of flat or tubular films whereby a solution of cellulose in an aqueous tertiary amine oxide is extruded using an extrusion nozzle whereby the solution can as the case may be also contain additives such as stabilising and softening agents, pore formers and so on whereby a moulded solution results which has two surfaces and the extruded moulded solution is led over a gap into a precipitation bath and drawn off from the precipitation bath. The invention relates to a process for the production of cellulosic moulded bodies in the form of flat or tubular films and cellulosic membranes in the form of flat or tubular films whereby a solution of cellulose in an aqueous tertiary amine oxide is extruded using an extrusion nozzle whereby the solution can as the case may be also contain additives such as stabilizing and softening agents, pore formers and so on whereby a moulded solution results which has two surfaces and the extruded moulded solution is led over a gap into a precipitation bath and drawn off from the precipitation bath. The process in accordance with the invention is characterized in that the two surfaces of the moulded solution in the gap are each exposed to at least one gaseous medium whereby the medium to which the first surface is exposed differs from the medium to which the second surface is exposed in composition, properties and/or the state of motion.</description><language>eng</language><creationdate>2003</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6517758$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,776,798,881,64015</link.rule.ids><linktorsrc>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6517758$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Gspaltl, Peter</creatorcontrib><creatorcontrib>Schlossnikl, Christian</creatorcontrib><creatorcontrib>Kalleitner, Johann</creatorcontrib><creatorcontrib>Firgo, Heinrich</creatorcontrib><creatorcontrib>Lenzing Aktiengesellschaft</creatorcontrib><title>Process for the production of cellulosic moulded bodies</title><description>The invention relates to a process for the production of cellulosic moulded bodies, flat and tubular films and cellulosic membranes in the form of flat or tubular films whereby a solution of cellulose in an aqueous tertiary amine oxide is extruded using an extrusion nozzle whereby the solution can as the case may be also contain additives such as stabilising and softening agents, pore formers and so on whereby a moulded solution results which has two surfaces and the extruded moulded solution is led over a gap into a precipitation bath and drawn off from the precipitation bath. The invention relates to a process for the production of cellulosic moulded bodies in the form of flat or tubular films and cellulosic membranes in the form of flat or tubular films whereby a solution of cellulose in an aqueous tertiary amine oxide is extruded using an extrusion nozzle whereby the solution can as the case may be also contain additives such as stabilizing and softening agents, pore formers and so on whereby a moulded solution results which has two surfaces and the extruded moulded solution is led over a gap into a precipitation bath and drawn off from the precipitation bath. The process in accordance with the invention is characterized in that the two surfaces of the moulded solution in the gap are each exposed to at least one gaseous medium whereby the medium to which the first surface is exposed differs from the medium to which the second surface is exposed in composition, properties and/or the state of motion.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2003</creationdate><recordtype>patent</recordtype><sourceid>EFH</sourceid><recordid>eNrjZDAPKMpPTi0uVkjLL1IoyUhVKCjKTylNLsnMz1PIT1NITs3JKc3JL85MVsjNL81JSU1RSMpPyUwt5mFgTUvMKU7lhdLcDApuriHOHrqlxQWJJal5JcXx6UWJIMrAzNTQ3NzUwpgIJQC2KS8M</recordid><startdate>20030211</startdate><enddate>20030211</enddate><creator>Gspaltl, Peter</creator><creator>Schlossnikl, Christian</creator><creator>Kalleitner, Johann</creator><creator>Firgo, Heinrich</creator><scope>EFH</scope></search><sort><creationdate>20030211</creationdate><title>Process for the production of cellulosic moulded bodies</title><author>Gspaltl, Peter ; Schlossnikl, Christian ; Kalleitner, Johann ; Firgo, Heinrich</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_065177583</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2003</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Gspaltl, Peter</creatorcontrib><creatorcontrib>Schlossnikl, Christian</creatorcontrib><creatorcontrib>Kalleitner, Johann</creatorcontrib><creatorcontrib>Firgo, Heinrich</creatorcontrib><creatorcontrib>Lenzing Aktiengesellschaft</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Gspaltl, Peter</au><au>Schlossnikl, Christian</au><au>Kalleitner, Johann</au><au>Firgo, Heinrich</au><aucorp>Lenzing Aktiengesellschaft</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for the production of cellulosic moulded bodies</title><date>2003-02-11</date><risdate>2003</risdate><abstract>The invention relates to a process for the production of cellulosic moulded bodies, flat and tubular films and cellulosic membranes in the form of flat or tubular films whereby a solution of cellulose in an aqueous tertiary amine oxide is extruded using an extrusion nozzle whereby the solution can as the case may be also contain additives such as stabilising and softening agents, pore formers and so on whereby a moulded solution results which has two surfaces and the extruded moulded solution is led over a gap into a precipitation bath and drawn off from the precipitation bath. The invention relates to a process for the production of cellulosic moulded bodies in the form of flat or tubular films and cellulosic membranes in the form of flat or tubular films whereby a solution of cellulose in an aqueous tertiary amine oxide is extruded using an extrusion nozzle whereby the solution can as the case may be also contain additives such as stabilizing and softening agents, pore formers and so on whereby a moulded solution results which has two surfaces and the extruded moulded solution is led over a gap into a precipitation bath and drawn off from the precipitation bath. The process in accordance with the invention is characterized in that the two surfaces of the moulded solution in the gap are each exposed to at least one gaseous medium whereby the medium to which the first surface is exposed differs from the medium to which the second surface is exposed in composition, properties and/or the state of motion.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_uspatents_grants_06517758
source USPTO Issued Patents
title Process for the production of cellulosic moulded bodies
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-25T20%3A42%3A07IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-uspatents_EFH&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=Gspaltl,%20Peter&rft.aucorp=Lenzing%20Aktiengesellschaft&rft.date=2003-02-11&rft_id=info:doi/&rft_dat=%3Cuspatents_EFH%3E06517758%3C/uspatents_EFH%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true