Die Erfindung betrifft die dauerhafte Abdichtung von flüssigkeitsführenden oder -beinhaltenden Systemen.The invention relates to the permanent sealing of liquid-carrying or-including systems.
Superabsorber werden bislang als absorbierende Einsatzstoffe in Einwegwindeln, in der Lebensmittelindustrie, als Bodenzuschlagsstoffe und als Dichtmittel gegen das Eindringen von Wasser in Kabel verwendet.So far, superabsorbents have been used as absorbent materials in disposable diapersthe food industry, as soil additives and as a sealant against thatWater penetration used in cables.
Darüber hinaus ist der Einsatz von quellfähigen Medien, z. B. Bentoniten, in der Deponietechnik als zusätzlicher Schutzmechanismus vor dem Austritt von Sickerwasser bekannt.In addition, the use of swellable media such. B. bentonites, in the DePonie technology as an additional protection mechanism against the leakage of leachateknown.
Der vorwiegende Einsatz stark quellender Medien liegt in der Aufnahme bzw. dem Speichern von Flüssigkeiten, oder in der Verhinderung des Eintretens einer Flüssigkeit in ein System (Kabelabdichtung).The predominant use of strongly swelling media lies in the recording or theStorage of liquids, or in the prevention of the entry of a liquidinto one system (cable seal).
Der Einsatz von stark quellenden Polymeren kann als Sicherheitssystem zur Abdichtung von flüssigkeitführenden oder -beinhaltenden Medien dienen. Substanzen, die zur Herstellung der o.g. Polymere dienen können, sind im Anhang beispielhaft aufgelistet.The use of strongly swelling polymers can act as a security system for sealingserve media containing or containing liquids. Substances thatfor the production of the above Polymers can serve as examples in the appendixlists.
Die zur Zeit in der Kanalisation eingesetzten Konstruktionen beschränken sich im wesentlichen auf den Einsatz von Gummiabdichtungen, die das Austreten der in den Rohren befindlichen Flüssigkeiten verhindern sollen. Mit der Zeit kommt es aufgrund von Alterungserscheinungen des Gummis in diesem Zusammenhang aber zur Versprödung und Rißbildung, so daß mit der Zeit vermehrt Leckagen auftreten.The constructions currently used in the sewage system are limitedessential to the use of rubber seals, which prevent the leakage in thePipes to prevent liquids. In time it comes down toof signs of aging of the rubber in this context but for verembrittlement and cracking, so that leakage occurs over time.
Hier kann ein Sicherheitssystem aus quellfähigen Polymeren, die nicht biologisch abgebaut werden, Abhilfe schaffen. Kommt es zum Versagen der eigentlichen Dichtung tritt Flüssigkeit aus dem Rohr aus und trifft auf das quellfähige Polymer. Die ausgetre tene Flüssigkeit wird unter Volumenvergrößerung absorbiert und führt zu einer Abdichtung des Systems gegenüber dem Flüssigkeitsaustritt (Fig. 1, 2).A security system made of swellable polymers that are not biodegradable can help here. If the actual seal fails, liquid escapes from the pipe and hits the swellable polymer. The leaked liquid is absorbed with an increase in volume and leads to a seal from the system to the liquid outlet (Fig. 1, 2).
Die Herstellung der Polymer-/Geldichtung kann dabei als durch ein dehnbares, poröses Material gekapseltes Pulver oder als an Fasern appliziertes Polymer erfolgen. Das Anbringen der Polymer-/Geldichtung kann entweder in Form einer als Ring gefertigten Polymer-/Geldichtung erfolgen, oder durch ein Wickelelement, das durch mehrfaches Umwickeln mit einem Polymer-/Gelschlauch oder -gewebe angebracht werden kann.The production of the polymer / gel seal can be as a stretchy, porousMaterial encapsulated powder or as a polymer applied to fibers. TheAttaching the polymer / gel seal can either be made in the form of a ringth polymer / gel seal, or by a winding element that by multiple fawrap with a polymer / gel tube or fabriccan.
Die Rohrmuffen sind für diese Applikation so zu modifizieren, daß der Gelring an der eingebauten Position fixiert wird, dies kann beispielsweise durch Fixierringe oder entsprechende Erhöhungen an den Rohrmuffen erfolgen.For this application, the pipe sleeves must be modified so that the gel ring on thebuilt-in position is fixed, this can for example by fixing rings or entspeaking increases on the pipe sockets.
Folien oder dichte Gewebe werden u. a. auch dazu benutzt Systeme gegen das Ein- oder Austreten von Flüssigkeit zu schützen, bspw. verhindert in der Deponietechnik eine aufliegende Folie das Eindringen von Regenwasser in die Deponie oder eine unterhalb der Deponie befindliche Folie das unkontrollierte Austreten von Sickerwässern. Durch unsachgemäße Behandlung oder andere Umstände kann es zu einer Beschädigung der Folie kommen, die, wenn sie nicht rechtzeitig bemerkt wird, große Umweltschäden zur Folge haben kann.Foils or dense fabrics are u. a. also used systems against entry orTo protect leakage of liquids, e.g. prevented in landfill technologyan overlying film the entry of rainwater into the landfill or an unfoil located below the landfill the uncontrolled leakage of leachateser. Improper handling or other circumstances can lead to adamage to the film, which, if not noticed in good time,Environmental damage.
Werden quellfähige Polymere in die Folien eingearbeitet (Gelreservoir) oder in bzw. auf das Gewebe appliziert, quellen sie im Falle einer Leckage beim Kontakt mit Wasser auf und führen zu einer Abdichtung des Systems (Fig. 3).If swellable polymers are incorporated into the films (gel reservoir) or applied to or onto the tissue, they swell in the event of a leak upon contact with water and lead to a sealing of the system (FIG. 3).
Tabelle 1
 Table 1
Sonstige:
Sephadex G-100 (Sigma Chemical Co., St. Louis)
Biogel P-2, P-4, P-6, P-30, P-600 Bio-Rad labaratories, Richmond
Vernetzermonomere:
N,N'-Methylenbisacrylamid
Diallylamin
Diallylammoniumchlorid
Triallylamin
Triallylammoniumchlorid
DiallylweinsäurediamidOther:
 Sephadex G-100 (Sigma Chemical Co., St. Louis)
 Biogel P-2, P-4, P-6, P-30, P-600 Bio-Rad labaratories, Richmond
 Crosslinking monomer:
 N, N'-methylenebisacrylamide
 Diallylamine
 Diallyl ammonium chloride
 Triallylamine
 Triallyl ammonium chloride
 Diallyl tartaric acid diamide
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| DE1997148631DE19748631A1 (en) | 1997-11-04 | 1997-11-04 | Safety seal for liquid systems using swellable polymers | 
| AU15600/99AAU1560099A (en) | 1997-11-04 | 1998-11-04 | Seal in order to prevent the exit or entry of liquids out of or into systems andthe application thereof | 
| PCT/EP1998/007030WO1999023401A1 (en) | 1997-11-04 | 1998-11-04 | Seal in order to prevent the exit or entry of liquids out of or into systems and the application thereof | 
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| DE1997148631DE19748631A1 (en) | 1997-11-04 | 1997-11-04 | Safety seal for liquid systems using swellable polymers | 
| Publication Number | Publication Date | 
|---|---|
| DE19748631A1true DE19748631A1 (en) | 1999-05-06 | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| DE1997148631WithdrawnDE19748631A1 (en) | 1997-11-04 | 1997-11-04 | Safety seal for liquid systems using swellable polymers | 
| Country | Link | 
|---|---|
| AU (1) | AU1560099A (en) | 
| DE (1) | DE19748631A1 (en) | 
| WO (1) | WO1999023401A1 (en) | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
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| DE102007032403A1 (en)* | 2007-07-10 | 2009-01-22 | Evonik Röhm Gmbh | Use of a swellable polymer for sealing | 
| EP2151611A1 (en)* | 2008-08-04 | 2010-02-10 | Carl Freudenberg KG | Rotary shaft lip seals with emergency seal lips | 
| EP2151610A1 (en)* | 2008-08-04 | 2010-02-10 | Carl Freudenberg KG | Rotary shaft lip seals with swellable excluder lips | 
| WO2010057606A3 (en)* | 2008-11-19 | 2010-10-07 | Sew-Eurodrive Gmbh & Co. Kg | Sealing element having a passive activation element | 
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| DE19955762C1 (en)* | 1999-11-19 | 2001-02-01 | Hilti Ag | Sealing gland for domestic supply pipeline or cable fitted through building wall uses sealing sleeve of material which swells upon contact with liquid for preventing ingress of water | 
| DE19955839C1 (en)* | 1999-11-19 | 2001-03-01 | Hilti Ag | Sealant, for use in building industry for sealing outside connecting openings carrying pipes and cables etc. through walls, comprises plastic foam, containing a water-swellable, preferably polymeric, filler | 
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| WO2002023070A1 (en)* | 2000-09-13 | 2002-03-21 | Fitr Gesellschaft Für Innovation Im Tief- Und Rohrleitungsbau Weimar M.B.H. | Sealing system | 
| DE102004048154A1 (en)* | 2004-10-02 | 2006-04-13 | Hauff-Technik Gmbh & Co Kg | Device for liquid-tight or gas-tight mutual delimitation of two rooms | 
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| WO2010057606A3 (en)* | 2008-11-19 | 2010-10-07 | Sew-Eurodrive Gmbh & Co. Kg | Sealing element having a passive activation element | 
| CN102216657A (en)* | 2008-11-19 | 2011-10-12 | 索尤若驱动有限及两合公司 | Sealing components with passive activation components | 
| CN102216657B (en)* | 2008-11-19 | 2014-07-09 | 索尤若驱动有限及两合公司 | Sealing components with passive activation components | 
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| WO1999023401A1 (en) | 1999-05-14 | 
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| Date | Code | Title | Description | 
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| OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8105 | Search report available | ||
| 8130 | Withdrawal |