Hydrophylized microporous polytetrafluorethylene membrane and production process thereof
Die Erfindung betrifft eine hydrophilierte, mikroporöse Membran und Verfahren zu ihrer Herstellung. Ziel der Erfindung ist es, eine hydrophilierte, mikroporöse Membran aus PTFE herzustellen. Erfindungsgemäß besteht die hydrophilierte, mikroporöse Membran aus unmodifiziertem PTFE und 2,5 bis 25 Masse...
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| creator | BUERGER, WOLFGANG KOELLING, HARTMUTH KLATT, BRUNO HERRMANN, REIMUND LUNKWITZ, KLAUS HORX, MANFRED BRINK, HANS-JUERGEN |
| description | Die Erfindung betrifft eine hydrophilierte, mikroporöse Membran und Verfahren zu ihrer Herstellung. Ziel der Erfindung ist es, eine hydrophilierte, mikroporöse Membran aus PTFE herzustellen. Erfindungsgemäß besteht die hydrophilierte, mikroporöse Membran aus unmodifiziertem PTFE und 2,5 bis 25 Masse-% hochfunktionalisiertem PTFE als weitgehend polymeridentisches Hydrophilierungsmittel. Das hochfunktionalisierte PTFE wird durch Bestrahlung und gegebenenfalls durch Zusätze von Sulfiten, Carbonaten erhalten. Weiterhin sind Verfahren zur Herstellung der Membranen Gegenstand der Erfindung.
The invention relates to a hydrophilised, microporous membrane and to a production process therefor. The object of the invention is to produce a hydrophilised, microporous membrane made of PTFE. According to the invention, the hydrophilised microporous membrane consists of unmodified PTFE and 2.5 to 25 % by mass of highly functionalised PTFE as a largely polymer-identical hydrophilising agent. The highly functionalised PTFE is obtained by irradiation and, if appropriate, by additions of sulphites and/or carbonates. The invention also relates to production processes for the membranes. |
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The invention relates to a hydrophilised, microporous membrane and to a production process therefor. The object of the invention is to produce a hydrophilised, microporous membrane made of PTFE. According to the invention, the hydrophilised microporous membrane consists of unmodified PTFE and 2.5 to 25 % by mass of highly functionalised PTFE as a largely polymer-identical hydrophilising agent. The highly functionalised PTFE is obtained by irradiation and, if appropriate, by additions of sulphites and/or carbonates. The invention also relates to production processes for the membranes.</description><language>eng ; fre ; ger</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; GENERAL PROCESSES OF COMPOUNDING ; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; 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</subject><creationdate>1992</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=19920102&DB=EPODOC&CC=EP&NR=0463627A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19920102&DB=EPODOC&CC=EP&NR=0463627A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BUERGER, WOLFGANG</creatorcontrib><creatorcontrib>KOELLING, HARTMUTH</creatorcontrib><creatorcontrib>KLATT, BRUNO</creatorcontrib><creatorcontrib>HERRMANN, REIMUND</creatorcontrib><creatorcontrib>LUNKWITZ, KLAUS</creatorcontrib><creatorcontrib>HORX, MANFRED</creatorcontrib><creatorcontrib>BRINK, HANS-JUERGEN</creatorcontrib><title>Hydrophylized microporous polytetrafluorethylene membrane and production process thereof</title><description>Die Erfindung betrifft eine hydrophilierte, mikroporöse Membran und Verfahren zu ihrer Herstellung. Ziel der Erfindung ist es, eine hydrophilierte, mikroporöse Membran aus PTFE herzustellen. Erfindungsgemäß besteht die hydrophilierte, mikroporöse Membran aus unmodifiziertem PTFE und 2,5 bis 25 Masse-% hochfunktionalisiertem PTFE als weitgehend polymeridentisches Hydrophilierungsmittel. Das hochfunktionalisierte PTFE wird durch Bestrahlung und gegebenenfalls durch Zusätze von Sulfiten, Carbonaten erhalten. Weiterhin sind Verfahren zur Herstellung der Membranen Gegenstand der Erfindung.
The invention relates to a hydrophilised, microporous membrane and to a production process therefor. The object of the invention is to produce a hydrophilised, microporous membrane made of PTFE. According to the invention, the hydrophilised microporous membrane consists of unmodified PTFE and 2.5 to 25 % by mass of highly functionalised PTFE as a largely polymer-identical hydrophilising agent. The highly functionalised PTFE is obtained by irradiation and, if appropriate, by additions of sulphites and/or carbonates. The invention also relates to production processes for the membranes.</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SEPARATION</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TRANSPORTING</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1992</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjDEKAjEQRdNYiHqHuYAgu7LWsqxsaWFht8RkwgaSTJgkRTy9ETyA1X8fHm8rnnPVTHGtzr5Rg7eqPWIqCSK5mjGzNK4QY24OBgSP_sWygQwaIpMuKlsKX1SYEuQVGcnsxcZIl_Dw252A2_QY5yNGWjBFqVosL9P9dB76obtcu_4P5QNXRzwJ</recordid><startdate>19920102</startdate><enddate>19920102</enddate><creator>BUERGER, WOLFGANG</creator><creator>KOELLING, HARTMUTH</creator><creator>KLATT, BRUNO</creator><creator>HERRMANN, REIMUND</creator><creator>LUNKWITZ, KLAUS</creator><creator>HORX, MANFRED</creator><creator>BRINK, HANS-JUERGEN</creator><scope>EVB</scope></search><sort><creationdate>19920102</creationdate><title>Hydrophylized microporous polytetrafluorethylene membrane and production process thereof</title><author>BUERGER, WOLFGANG ; KOELLING, HARTMUTH ; KLATT, BRUNO ; HERRMANN, REIMUND ; LUNKWITZ, KLAUS ; HORX, MANFRED ; BRINK, HANS-JUERGEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0463627A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1992</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SEPARATION</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TRANSPORTING</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>BUERGER, WOLFGANG</creatorcontrib><creatorcontrib>KOELLING, HARTMUTH</creatorcontrib><creatorcontrib>KLATT, BRUNO</creatorcontrib><creatorcontrib>HERRMANN, REIMUND</creatorcontrib><creatorcontrib>LUNKWITZ, KLAUS</creatorcontrib><creatorcontrib>HORX, MANFRED</creatorcontrib><creatorcontrib>BRINK, HANS-JUERGEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BUERGER, WOLFGANG</au><au>KOELLING, HARTMUTH</au><au>KLATT, BRUNO</au><au>HERRMANN, REIMUND</au><au>LUNKWITZ, KLAUS</au><au>HORX, MANFRED</au><au>BRINK, HANS-JUERGEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Hydrophylized microporous polytetrafluorethylene membrane and production process thereof</title><date>1992-01-02</date><risdate>1992</risdate><abstract>Die Erfindung betrifft eine hydrophilierte, mikroporöse Membran und Verfahren zu ihrer Herstellung. Ziel der Erfindung ist es, eine hydrophilierte, mikroporöse Membran aus PTFE herzustellen. Erfindungsgemäß besteht die hydrophilierte, mikroporöse Membran aus unmodifiziertem PTFE und 2,5 bis 25 Masse-% hochfunktionalisiertem PTFE als weitgehend polymeridentisches Hydrophilierungsmittel. Das hochfunktionalisierte PTFE wird durch Bestrahlung und gegebenenfalls durch Zusätze von Sulfiten, Carbonaten erhalten. Weiterhin sind Verfahren zur Herstellung der Membranen Gegenstand der Erfindung.
The invention relates to a hydrophilised, microporous membrane and to a production process therefor. The object of the invention is to produce a hydrophilised, microporous membrane made of PTFE. According to the invention, the hydrophilised microporous membrane consists of unmodified PTFE and 2.5 to 25 % by mass of highly functionalised PTFE as a largely polymer-identical hydrophilising agent. The highly functionalised PTFE is obtained by irradiation and, if appropriate, by additions of sulphites and/or carbonates. The invention also relates to production processes for the membranes.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL 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 |
| title | Hydrophylized microporous polytetrafluorethylene membrane and production process thereof |
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