DE4218216C1 - Large area gas block - has layer of water-retaining material between layers of cement-bonded leather and textile waste - Google Patents
Large area gas block - has layer of water-retaining material between layers of cement-bonded leather and textile wasteInfo
- Publication number
- DE4218216C1 DE4218216C1 DE19924218216 DE4218216A DE4218216C1 DE 4218216 C1 DE4218216 C1 DE 4218216C1 DE 19924218216 DE19924218216 DE 19924218216 DE 4218216 A DE4218216 A DE 4218216A DE 4218216 C1 DE4218216 C1 DE 4218216C1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- cement
- water
- textile
- intermediate layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010985 leather Substances 0.000 title claims abstract description 6
- 239000000463 material Substances 0.000 title abstract description 11
- 239000010784 textile waste Substances 0.000 title 1
- 239000004753 textile Substances 0.000 claims abstract description 20
- 239000004568 cement Substances 0.000 claims abstract description 13
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 12
- 239000011707 mineral Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 229910052704 radon Inorganic materials 0.000 claims abstract description 3
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 9
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 230000008961 swelling Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000003466 anti-cipated effect Effects 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 239000002689 soil Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- -1 B. Polyethy len Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000005420 bog Substances 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000007775 late Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/004—Sealing liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B1/00—Dumping solid waste
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren, das anwendbar ist für die Herstellung von gasdurchtrittshemmenden Konstruktions schichten zur Abdeckung großflächiger, Gase emittierender Areale, wie z. B. Mülldeponien, Bergbauhalden, verfüllte Sumpflöcher und Moore. Gleichzeitig bietet das Verfahren die Möglichkeit, Abfälle der Textil- und Lederindustrie in Schnitzelform einer Verwertung zuzuführen und dadurch Deponien zu entlasten, wobei eine massenhafte Entsorgung dieser Industriezweige gesichert werden kann.The invention relates to a method that is applicable for the production of gas penetration-resistant construction layers to cover large, gas-emitting Areas such as B. landfills, mining dumps, backfilled Swampholes and bogs. At the same time, the process offers the opportunity to waste the textile and leather industry in Recycle the schnitzel shape and thereby Relieve landfills, with mass disposal of these industries can be secured.
Die bekannten technischen Lösungen nutzen in der Regel Folien aus verschiedenen Materialien, wie z. B. Polyäthy len, Polypropylen, Polyester, Polyamid, Polyvinylchlorid o. ä. Hochpolymere zur Abdeckung von gasemittierenden Flä chen, wie z. B. Radon abgebenden Uranbergbauhalden. Die Folien werden noch mit einer Erdschicht bedeckt.The known technical solutions are usually used Films made of different materials, such as B. Polyethy len, polypropylene, polyester, polyamide, polyvinyl chloride High polymers to cover gas-emitting surfaces chen, such as B. Radon-emitting uranium mines. The Foils are still covered with a layer of earth.
Der Erfindung liegt die Aufgabe zugrunde, eine gasdurch trittshemmende Abdeckung herzustellen, die durch mögliche Belastungen nicht zerstört wird und ebenso wechselnden Beanspruchungen standhält.The invention has for its object a gas through manufacture anti-slip cover by possible Loads are not destroyed and just as changing Withstands stress.
Eine erfindungsgemäße Lösung dieser Aufgabe ist im Patent anspruch 1 angegeben. Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet. An inventive solution to this problem is in the patent Claim 1 specified. Developments of the invention are characterized in the subclaims.
Der prinzipielle Lösungsansatz besteht darin, daß die gasdurchtrittshemmende Schicht zwischen eine nichtspröd brüchige Ober- und Unterschicht eingebracht wird. Zur Herstellung solcher nichtsprödbrüchiger Schichten eignen sich besonders mineralisierte und zementgebundene Abfall schnitzel, die ein gleichartiges elastisches Verhalten wie die zu schützende Zwischenschicht aufweisen.The basic approach is that the gas barrier layer between a non-brittle brittle top and bottom layers are introduced. For Production of such non-brittle layers are suitable particularly mineralized and cement-bound waste schnitzel that have a similar elastic behavior like have the intermediate layer to be protected.
Diese gasdurchtrittshemmende Zwischenschicht besteht vorteilhaft aus einer wasserspeichernden und quellenden mineralischen Pulvermasse, die zwischen zwei elastischen Textilbahnen eingebracht und dort textil fixiert ist.This gas penetration-resistant intermediate layer is made advantageous from a water-storing and swelling mineral powder mass between two elastic Textile webs introduced and textile fixed there.
Der Effekt der Gasdurchtrittshemmung wird dadurch erzielt, daß sich in der wasserspeichernden mineralischen Pulver masse eine ausreichend dicke Wasserschicht ausbildet, die einen Gasdurchtritt unterbindet.The effect of gas penetration inhibition is achieved that is in the water-storing mineral powder mass forms a sufficiently thick layer of water that prevents the passage of gas.
Die weitere Ausbildung der Erfindung kann den Patentan sprüchen entnommen werden.The further development of the invention can the patent sayings are taken.
Die mit der Erfindung erzielten Vorteile bestehen insbe sondere darin, daß die nichtsprödbrüchigen flexiblen Kon struktionsschichten durch mögliche Belastungen nicht zer stört werden und wechselnden Beanspruchungen standhalten sowie durch die wasserspeichernde Wirkung des zwischen Vliesbahnen eingelagerten pulverförmigen quellfähigen Minerals eine sichere gasdurchtrittshemmende Schicht ent steht.The advantages achieved with the invention are in particular special in that the non-brittle flexible Kon structural layers are not destroyed by possible loads be disturbed and withstand changing loads as well as the water-storing effect of the between Nonwoven webs of powdered swellable material Minerals ent a safe gas barrier layer stands.
Die erfindungsgemäß angestrebten nichtsprödbrüchigen Ei genschaften der Konstruktionsschichten gegenüber herkömm lichem Zementbeton werden dadurch erreicht, daß minerali sierte Abfallschnitzel aus Textil und Leder statt der Sand-Kies-Zuschlagstoffe eingesetzt werden, wodurch sich gleichzeitig der Zementbedarf reduziert. Die Verwendung von Abfällen der Textil- und Lederindustrie führt eben falls zur Entlastung von sonst benötigten Sonderdeponien und zur Vermeidung von umweltbelastenden Spätfolgen.The non-brittle egg desired according to the invention Properties of the construction layers compared to conventional Lich cement concrete are achieved in that minerali garbage chips made of textile and leather instead of Sand-gravel aggregates are used, which results in at the same time the cement requirement is reduced. The usage of waste from the textile and leather industry just leads if to relieve special landfills otherwise required and to avoid environmentally damaging late effects.
Ein wesentlicher Vorteil besteht auch in der die radioak tive Strahlung reduzierenden Wirkung der eingelagerten Wasserschicht im gequollenen Mineralpulver sowie in der Vermeidung der Emission von radioaktiven Gasen überhaupt.A major advantage is that the radioak tive radiation reducing effect of the stored Layer of water in the swollen mineral powder as well as in the Avoiding the emission of radioactive gases at all.
Einen weiteren Vorteil bringt die Verwendung mineralisier ter Abfälle durch die Erhöhung der Nutzungsdauer der hoch polymeren Grundmaterialien infolge des Vorbehandlungsef fektes. Dadurch wird einem chemischen Abbaueffekt entge gengewirkt.Another advantage is the use of mineralized ter waste by increasing the useful life of the high polymeric base materials due to the pretreatment fect. This counteracts a chemical degradation effect counteracted.
Die vorstehend beschriebene Erfindung soll ohne Beschrän kung des allgemeinen Erfindungsgedanken im folgenden an Hand von Ausführungsbeispielen näher erläutert werden. In der zugehörigen Zeichnung zeigenThe invention described above is intended to be without limitation kung the general inventive concept in the following Are explained in more detail by means of exemplary embodiments. Show in the accompanying drawing
Fig. 1 die Vorgehensweise, den Schichtaufbau bei der Abdeckung großflächiger gasemittierender Areale, Fig. 1, the procedure, the layer structure with the cover large surface areas gasemittierender,
Fig. 2 die Anwendung des Verfahrens bei der Abdeckung stark radonemittierender Halden. Fig. 2 shows the application of the method in the coverage of strongly radon-emitting heaps.
Eine allgemeine Anwendung der Erfindung ist aus der Darstellung in Fig. 1 ersichtlich.A general application of the invention can be seen from the illustration in FIG. 1.
Die Konstruktionsschichten sind in ihrer Dicke den jewei ligen Gegebenheiten anzupassen und die Überschüttungen mit mineralischem Boden und mit Oberboden (Kulturboden) sind entsprechend den Vegetationsbedingungen der gewünschten land- oder forstwirtschaftlichen Nutzung festzulegen.The thickness of the construction layers is the same adapt to current circumstances and the overburden with mineral soil and with top soil (cultivated soil) according to the vegetation conditions of the desired determine agricultural or forestry use.
Trotz Planierens und Verdichtens des Haldenmaterials 8 auftretende Unebenheiten im Planum können durch Aufbringen einer genügend dicken Schicht aus mineralisiertem Textil schnitzel-Zement-Ortbeton 7 ausgeglichen werden. Erfin dungsgemäß wird auf diese Textilschnitzel-Zement-Ortbeton schicht 7 die Dichtungsmatte 6 und darauf eine Abdeck schicht 5 aus vorgefertigten Platten eines Textilschnit zel-Zement-Betons oder ein Ortbeton gemäß Schicht 7 aufge bracht. Darüber werden die Bodenschichten 4, 3 und 2 als Überdeckung und Vegetationsschicht geschüttet.Despite leveling and compacting the stockpile material 8 unevenness in the formation can be compensated by applying a sufficiently thick layer of mineralized textile chip cement in-situ concrete 7 . Inven tion according to this textile chip cement in-situ concrete layer 7, the sealing mat 6 and then a cover layer 5 made of prefabricated slabs of textile cement cement concrete or in-situ concrete according to layer 7 is brought up. The soil layers 4 , 3 and 2 are poured over it as a covering and vegetation layer.
Dabei wird für dieses Ausführungsbeispiel folgender Schichtaufbau gewählt. Auf die ca. 5 cm starke Abdeck schicht 5 wird ein Mineralboden 4 aus Abraum- oder Recyc lingmaterial in einer Schüttung von mindestens 20 . . . 50 cm aufgetragen. Darauf aufbauend wird ein vegetationsfreund licher Mineralboden 3 in einer Stärke von mindestens 50 cm aufgebracht. Zur Geländeoberfläche 1 folgt darauf ein ca. 30 cm starker Oberboden 2 nach DIN 18 300.The following layer structure is selected for this exemplary embodiment. On the approx. 5 cm thick cover layer 5 , a mineral soil 4 made of overburden or recycled material in a bed of at least 20. . . 50 cm applied. Building on this, a vegetation-friendly mineral soil 3 with a thickness of at least 50 cm is applied. This is followed by an approx. 30 cm thick top floor 2 according to DIN 18 300 to the surface of the site 1 .
Als Dichtungsmatte 6 wird ein quellfähiges wasserspei cherndes Mineral zwischen Vliesbahnen eingebracht.As a sealing mat 6 , a swellable water-storing mineral is introduced between nonwoven webs.
Die Schicht 7 aus mineralisierten Textilschnitzel-Zement- Ortbeton ist durchschnittlich mindestens 12 cm dick.Layer 7 of mineralized textile chip cement in-situ concrete is at least 12 cm thick on average.
Im Ausführungsbeispiel nach Fig. 2 wird die Erfindung zur Abdeckung radonemittierender Halden angewendet. Die zugehörige Konstruktion der Abdeckung ist in Form ihres Schichtaufbaus aus Fig. 2 ersichtlich. Dabei sind die Schichten 1 bis 6 analog zum Ausführungsbeispiel nach Fig. 1 angeordnet bzw. aufgebaut. In the exemplary embodiment according to FIG. 2, the invention is used to cover radon-emitting heaps. The associated construction of the cover can be seen in the form of its layer structure from FIG. 2. Layers 1 to 6 are arranged or constructed analogously to the exemplary embodiment according to FIG. 1.
Eine Besonderheit ist hierbei die bei hoher Intensität der Emission von Radon im Haldenmaterial vorzusehende zusätz liche Kunststoffdichtungsbahn 9 zwischen dem mineralisier ten Textilschnitzel-Zement-Ortbeton 7 und der wasserspei chernden Schicht 6. Bei dieser Anordnung der Kunststoff dichtungsbahn 9 werden die bisher beim Einsatz von nicht eingebetteten Kunststoffdichtungsbahnen aufgetretenen Nachteile vermieden.A special feature is the additional high-density plastic sealing membrane 9 to be provided between the mineralized textile chip-cement-in-situ concrete 7 and the water-storing layer 6, provided that the radon emission in the stockpile material is high. With this arrangement of the plastic sealing membrane 9 , the disadvantages previously encountered when using non-embedded plastic sealing membranes are avoided.
Claims (5)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924218216 DE4218216C1 (en) | 1992-06-03 | 1992-06-03 | Large area gas block - has layer of water-retaining material between layers of cement-bonded leather and textile waste |
PCT/DE1993/000102 WO1993016009A1 (en) | 1992-02-11 | 1993-02-06 | Process and installation for producing materials with modified properties |
US08/284,652 US5722927A (en) | 1992-02-11 | 1993-02-06 | Process and installation for producing materials with modified properties |
AT93903150T ATE135337T1 (en) | 1992-02-11 | 1993-02-06 | METHOD AND SYSTEM FOR PRODUCING PROPERTY-MODIFIED MATERIALS |
ES93903150T ES2088664T3 (en) | 1992-02-11 | 1993-02-06 | PROCEDURE AND INSTALLATION FOR THE MANUFACTURE OF MATERIALS WITH MODIFIED PROPERTIES. |
DK93903150.6T DK0625962T3 (en) | 1992-02-11 | 1993-02-06 | Process and plant for the production of property-modified materials |
DE59301901T DE59301901D1 (en) | 1992-02-11 | 1993-02-06 | METHOD AND PLANT FOR PRODUCING PROPERTY-MODIFIED MATERIALS |
EP93903150A EP0625962B1 (en) | 1992-02-11 | 1993-02-06 | Process and installation for producing materials with modified properties |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924218216 DE4218216C1 (en) | 1992-06-03 | 1992-06-03 | Large area gas block - has layer of water-retaining material between layers of cement-bonded leather and textile waste |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4218216C1 true DE4218216C1 (en) | 1993-06-17 |
Family
ID=6460256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19924218216 Expired - Fee Related DE4218216C1 (en) | 1992-02-11 | 1992-06-03 | Large area gas block - has layer of water-retaining material between layers of cement-bonded leather and textile waste |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4218216C1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0816582B1 (en) * | 1996-07-04 | 2005-10-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Barrier for preventing the air convection and the emission of noxious substances in building rooms |
DE102004022525A1 (en) * | 2004-05-05 | 2005-12-01 | Cdm Jessberger Gmbh | Arrangement for decomposition of contents of dumping unit, has dehydration layer covered by reculturing layer with top soil, designed as water stop-and discharge layer and sectioned by locking bolts |
-
1992
- 1992-06-03 DE DE19924218216 patent/DE4218216C1/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0816582B1 (en) * | 1996-07-04 | 2005-10-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Barrier for preventing the air convection and the emission of noxious substances in building rooms |
DE102004022525A1 (en) * | 2004-05-05 | 2005-12-01 | Cdm Jessberger Gmbh | Arrangement for decomposition of contents of dumping unit, has dehydration layer covered by reculturing layer with top soil, designed as water stop-and discharge layer and sectioned by locking bolts |
DE102004022525B4 (en) * | 2004-05-05 | 2007-11-15 | Cdm Consult Gmbh | Arrangement for decomposing ingredients of a landfill body |
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Legal Events
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8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8322 | Nonbinding interest in granting licenses declared | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ENVIRONMENTAL TECHNOLOGIES (EUROPA) LTD., WESTCLIF |
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8328 | Change in the person/name/address of the agent |
Free format text: HEYNER, K., DIPL.-ING. DR.-ING.HABIL., PAT.-ANW., 01189 DRESDEN |
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8381 | Inventor (new situation) |
Free format text: FUCHS, HELMUT, DR.-ING. HABIL., 09397 NEUWUERSCHNITZ, DE KNAUPE, WERNER, PROF. DR.SC., 04347 LEIPZIG, DE |
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8328 | Change in the person/name/address of the agent |
Free format text: DERZEIT KEIN VERTRETER BESTELLT |
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8339 | Ceased/non-payment of the annual fee |