DE20211956U1 - Solid wall element, for construction of interior walls, consists of at least three layers in form of pressed wood plates joined to one another by heat-hardenable two-component adhesive - Google Patents
Solid wall element, for construction of interior walls, consists of at least three layers in form of pressed wood plates joined to one another by heat-hardenable two-component adhesiveInfo
- Publication number
- DE20211956U1 DE20211956U1 DE20211956U DE20211956U DE20211956U1 DE 20211956 U1 DE20211956 U1 DE 20211956U1 DE 20211956 U DE20211956 U DE 20211956U DE 20211956 U DE20211956 U DE 20211956U DE 20211956 U1 DE20211956 U1 DE 20211956U1
- Authority
- DE
- Germany
- Prior art keywords
- wood
- panels
- wood layer
- room
- layers
- 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 - Lifetime
Links
- 239000002023 wood Substances 0.000 title claims abstract description 27
- 239000000853 adhesive Substances 0.000 title claims abstract description 14
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 14
- 239000007787 solid Substances 0.000 title claims abstract description 8
- 238000010276 construction Methods 0.000 title description 3
- XUMBMVFBXHLACL-UHFFFAOYSA-N Melanin Chemical compound O=C1C(=O)C(C2=CNC3=C(C(C(=O)C4=C32)=O)C)=C2C4=CNC2=C1C XUMBMVFBXHLACL-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 238000009435 building construction Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 13
- 239000012790 adhesive layer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/10—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of wood or with an outer layer of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Finishing Walls (AREA)
Abstract
Description
BOEHMERT & BOEHMERTBOEHMERT & BOEHMERT
ANWALTSSOZIETATLAW FIRM
Deutsches Patent- und Markenamt Zweibrückenstrasse 12German Patent and Trademark Office Zweibrückenstrasse 12
80297 München80297 Munich
DR.-ING. KARL BOEHMERT, PA(II»-|»7J) DIPL -MG. ALBERT BOEHMERT, PAllKa-lw WILHELM J. H STAHLBERG. KA >_ DR.-ING. WALTER HOORMANN, &rgr;&lgr;·. &bgr;«™. DIPL.-PHYS. Dft. HEINZOODDAR. PA-.Muncs DR-INC. ROLAND LIESEGANG. PA·. &Mgr;*&ohgr;~» WOLF-DIETER KUNTZE, RA. Bnsneo, A]»·»« DIPL.-PKYS. ROBERTMONZHUBER. PA(IWJ DR LUDWIG KOUKER, UBn. DR. (CHEM-)ANDREAS WINKLER, pa·. B«™ MICHAELA KUTH-DIERIG, RA. Mond«» DIPL-PHYS. DR MARION TONHARDT. PA·. DR. ANDREAS EBERT-WEIDENFELLER, RA. b™« DIPL.-ING. EVA LIESEGANG. PA·. Manchen DR. AXEL NORDEMANN. RA. Bert.. DIPL-PHYS. DR. DOROTHEE WEBER-BRULS.PA· DIPL-PHYS. DR. STEFAN SCHOHE. pa·.Manch« DR.-ING. MATTHIAS PHILIPP. PA·. Bidefcld DR. MARTIN WmTZ. RA. Duekfcrf DR. DETMAR SCHAFER, RA. Bremen DR. JAN BERND NORDEMANN, LLM., RA. Beru. DR. CHRISTIAN CZYCHOWSKI, RA. Bed,. DR. CARL-RICHARD HAARMANN, Ra. M»d«n DIPL-PHYS. CHRISTIAN W. APPELT. PA·. MUn1IaDR.-ING. KARL BOEHMERT, PA(II»-|»7J) DIPL -MG. ALBERT BOEHMERT, PAllKa-lw WILHELM J. H STAHLBERG. KA >_ DR.-ING. WALTER HOORMANN, &rgr;&lgr;·. &bgr;«™. DIPL.-PHYS. Dft. HEINZOODDAR. PA-.Muncs DR-INC. ROLAND LIESEGANG. PA·. µ*ω~» WOLF-DIETER KUNTZE, RA. Bnsneo, A]»·»« DIPL.-PKYS. ROBERTMONZHUBER. PA(IWJ DR LUDWIG KOUKER, UBn. DR. (CHEM-)ANDREAS WINKLER, pa·. B«™ MICHAELA KUTH-DIERIG, RA. Mond«» DIPL-PHYS. DR MARION TONHARDT. PA·. DR. ANDREAS EBERT -WEIDENFELLER, RA. b™« DIPL.-ING. EVA LIESEGANG. PA·. Some DR. AXEL NORDEMANN. RA. Bert.. DIPL-PHYS. DR. DOROTHEE WEBER-BRULS.PA· DIPL-PHYS. DR. STEFAN SCHOHE. pa·.Manch« DR.-ING. MATTHIAS PHILIPP. PA·. Bidefcld DR. MARTIN WmTZ. RA. Duekfcrf DR. DETMAR SCHAFER, RA. Bremen DR. JAN BERND NORDEMANN, LLM., RA. Beru. DR. CHRISTIAN CZYCHOWSKI, RA. Bed,. DR. CARL-RICHARD HAARMANN, Ra. M»d«n DIPL-PHYS. CHRISTIAN W. APPELT. PA·. MUn 1 Ia
PA - Patentanwalt/Patent Attorney RA - Rcchuarorah/Allomcy et Uw ■ - European Poem Attorney a -Bnndenburg,zugctascnem OLG Brandenburg ° -MaitrcenDroitPA - Patentanwalt/Patent Attorney RA - Rcchuarorah/Allomcy et Uw ■ - European Poem Attorney a -Bnndenburg,zugctascnem OLG Brandenburg ° -MaitrcenDroit
° -LkencieenDroil° -LkencieenDroil
Alk zusdistoi air Vertretung «w dem Europliichea Markeuarnl. Alicante Prolcisiotul Representation at the Conununily Trademark Office, AlicanteAll rights reserved. Representation at the European Trademark Office, Alicante Prolificiotul Representation at the Conununily Trademark Office, Alicante
PROF. DR. WILHELM NORDEMANN, RA. BRB" DIPL-PHYS. EDUARD BAUMANN, pa·. WIoI1nK. DR-JNG. GERALD KLOPSCH. PA-. Duektot DIPL-ING. HANS W. GROENING. pa·. Mond«. DIPL-ING. SIEGFRIED SCH]RMER. PA*. B-fcfcu DIPL-PHYS. LORENZ HANEWWKEL pa·. Purt». DIPL-ING. ANTON FREIHERR REDERER V. PAAR. PA-DIPUNO DR. JAN TONNIES, pa. ra. Iod DIPL-PHYS. CHRISTIAN BIEHL, PA·, bi DIPL-PHYS. DR.-ING. UWE MANASSE. pa·. b,™ DIPL.-PHYS. DR. THOMAS L BITTNER, PA'.Bcrun DR. VOLKER SCHMITZ, M Juris (Oxford). RA. Mnd«. DR. ANKE NORDEMANN-SCHIFFEL Ra°. Poud«. DIPL-BIOL DR. JAN B. KRAUSS. PA. Berti DR. KLAUS TTM BROCKER. RA. Bert. DR. ANDREAS DUSTMANN. LL M. RA. pul», DIPL.-ING. NTLS T. F. SCHMID, PA·. Manchen DR. FLORIAN SCHWAB. LLM^ RA-. Moncacn DIPL-BIOCHEM DR MARKUS ENGELHARD. PA Mo«l DIPL-CHEM. DR. KARL-HEINZ METTEN, pa·. Frcnkfun DIPL-ING. DR STEFAN TARUTTIS. PA. r>~ä*rr PASCAL DECKER, RA. B=*.PROF. DR. WILHELM NORDEMANN, RA. BRB" DIPL-PHYS. EDUARD BAUMANN, pa·. WIoI 1n K. DR-JNG. GERALD KLOPSCH. PA-. Duektot DIPL-ING. HANS W. GROENING. pa·. Mond«. DIPL-ING. SIEGFRIED SCH]RMER . PA*. B-fcfcu DIPL-PHYS. PA·. Purt». DIPL-ING. PA·, bi DIPL-PHYS. DR.-ING. pa·. DIPL.-PHYS. DR. THOMAS L BITTNER, . Mnd." DR. ANKE NORDEMANN-SCHIFFEL Ra°. Poud." DIPL-BIOL DR. JAN B. KRAUSS. P.A. Berti DR. KLAUS TTM BROCKER. R.A. Bert. DR. ANDREAS DUSTMANN. LL M. RA. pul», DIPL.-ING. NTLS TF SCHMID, PA·. Many DR. FLORIAN SCHWAB. LLM^RA-. Moncacn DIPL-BIOCHEM DR MARKUS ENGELHARD. PA Mo«l DIPL-CHEM. DR. KARL-HEINZ METTEN, pa·. Frcnkfun DIPL-ING. DR STEFAN TARUTTIS. P.A. r>~ä*rr PASCAL DECKER, RA. B=*.
In Zusarmnenarbeit mit/in cooperation with DrPL-CHEM. DR. HANS ULRICI i MAY. pa·. Mend»In cooperation with/in cooperation with DrPL-CHEM. DR. HANS ULRICI in MAY. pa·. Mend»
Ihr Zeichen
Your ref.Your sign
Your ref.
NeuanmeldungNew registration
Ihr Schreiben Your letter of Unser Zeichen
Our .if. Your letter of Our sign
Our .if.
A 5238A5238
Kiel,Kiel,
!.August 2002!.August 2002
Edgar Asmussen
Schulstraße 1, 24941 Jarplund-WedingEdgar Asmussen
Schulstrasse 1, 24941 Jarplund-Weding
Massive HolzschichtwandSolid wood layer wall
Die Erfindung betrifft eine massive Holzschichtwand, insbesondere als tragendes und aussteifendes Innenwandelement für den Haus- und Wohnungsbau.The invention relates to a solid wood layer wall, in particular as a load-bearing and stiffening interior wall element for house and apartment construction.
Ein mehrlagiges Bauelement, das allerdings andere Materialien nutzt, und keine Lasten tragen kann, ist beispielsweise aus der DE 38 Ol 649 Al bekannt. Dort werden Schichten von Gipsplatten mit Kartonlagen verklebt, wobei das Abbinden der Klebeschicht durch eine Strahlungsquelle beschleunigt wird.A multi-layered construction element, which however uses other materials and cannot bear loads, is known from DE 38 Ol 649 Al, for example. In this document, layers of plasterboard are glued to layers of cardboard, with the setting of the adhesive layer being accelerated by a radiation source.
133 -.P-24J05 KieJ - Telephon Telefax+49^31-8^077133 -.P-24J05 KieJ - Telephone Fax+49^31-8^077
http://vA?w.6oehrneif.de e-mail' pos!master@rjoehme*rf.dehttp://vA?w.6oehrneif.de e-mail' pos!master@rjoehme*rf.de
BOEHMERT & BOEHMERTBOEHMERT & BOEHMERT
-2--2-
Die Erfindung hat sich zur Aufgabe gestellt, bei Verringerung der Wanddicke, hochfeste tragende und aussteifende Wände zu schaffen, die sich auch als Fußböden und überall dort eignen, wo es nicht auf eine dämmende Wirkung ankommt. Dabei sollen jedoch die überragenden ästhetischen, ökologischen und bearbeitungstechnischen Eigenschaften von Holz erreicht werden.The invention aims to create high-strength load-bearing and stiffening walls while reducing the wall thickness, which are also suitable as floors and wherever an insulating effect is not important. However, the outstanding aesthetic, ecological and processing properties of wood should be achieved.
Erfindungsgemäß wird dies durch ein Holzschichtelement mit den Merkmalen des Hauptanspruches gelöst. Die Unteransprüche geben vorteilhafte Ausführungsformen der Erfindung wieder.According to the invention, this is achieved by a wood layer element with the features of the main claim. The subclaims give advantageous embodiments of the invention.
Bevorzugt werden mindestens drei, normalerweise vier und höchstens sechs Holzwerkstoffplatten aus insbesondere OSB-Material, die einzeln geschliffen miteinander mit wenigstens zwei Schichten und höchstens fünf eines Zwei-Komponenten-Melaninharz-Klebers (bevorzugt wasserfest) verklebt werden.Preference is given to at least three, normally four and a maximum of six wood-based panels, in particular made of OSB material, which are individually sanded and glued together with at least two layers and a maximum of five of a two-component melanin resin adhesive (preferably waterproof).
Die Holzwerkstoffplatten bestehen aus kleinformatigen Einzelplatten vorzugsweise ca. 1,25 m &khgr; ca. 2,50 m in der Länge. Diese werden durch schichtweise Fugenüberlappung kraftschlüssig in einer HF-Presse zu großformatigen Wand- und Dekkenelementen verklebt. Diese sich ergebenden Elemente haben eine Größe von ca. 3 m &khgr; 12 m und werden passgenau zu montagefähigen Raumtrennwänden und Dekkenplatten zugeschnitten, die hohe konstruktive Eigenschaften aufweisen, insbesondere können sie als tragende und aussteifende Elemente wirken.The wood-based panels consist of small-format individual panels, preferably approx. 1.25 m x approx. 2.50 m in length. These are bonded together in a high-frequency press by overlapping the joints in layers to form large-format wall and ceiling elements. The resulting elements are approx. 3 m x 12 m in size and are cut to size to form ready-to-install room dividers and ceiling panels that have high structural properties; in particular, they can act as load-bearing and stiffening elements.
Der Kleber wird dabei insbesondere in der Hochfrequenz-Streufeld-Anlage, wie sie in der Patentanmeldung DE 198 52 633 Al des Anmelders beschrieben ist, aktiviert und ausgehärtet. Gegenüber dem Stand der Technik ergibt sich damit eine wesentlich innigere kraftschlüssige Verbindung (ohne Beul- und Knickmöglichkeit) der insgesamt vorzugsweise fünf wasserfest verklebten Einzelplatten, die insbesondere durch die vier parallelen festen glasharte Kleberschicht eine deutlich höhere Tragkraft als eine gleichdicke Sperrholzplatte oder Vollholzplatte haben (Sandwicheffekt).The adhesive is activated and hardened in particular in the high-frequency stray field system, as described in the applicant's patent application DE 198 52 633 A1. Compared to the state of the art, this results in a much more intimate, force-fitting connection (without the possibility of buckling or kinking) of the five individual panels, which are preferably bonded together in a waterproof manner and which, in particular due to the four parallel, solid, glass-hard adhesive layers, have a significantly higher load-bearing capacity than a plywood panel or solid wood panel of the same thickness (sandwich effect).
BOEHMERT & BOEHMERT
-3-BOEHMERT & BOEHMERT
-3-
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus nachfolgender Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung.Further advantages and features of the invention will become apparent from the following description of a preferred embodiment of the invention.
Die erfindungsgemäßen OSB-Wandelemente bestehen vorteilhafterweise aus wenigstens drei Pressholzlagen mit wenigstens zwei sie verbindenden Kleberschichten eines Zweikomponentenklebers, beispielsweise des Klebers Kauramin 681 mit Härter 616 (beide Komponenten flüssig) der Firma BASF.The OSB wall elements according to the invention advantageously consist of at least three compressed wood layers with at least two adhesive layers of a two-component adhesive connecting them, for example the adhesive Kauramin 681 with hardener 616 (both components liquid) from BASF.
Dieses Melaninharz-Klebersystem kann bei einer Presszeit von 4 Minuten, wobei die flüssige wasserhaltige Leimfüge und benachbarte Oberflächen der Holzwerkstoffplatten einige Sekunden bis zu Minuten erwärmt werden, bereits in einer für die Nachverarbeitung geeigneten Festigkeit produziert werden.This melamine resin adhesive system can be produced with a strength suitable for post-processing after a pressing time of 4 minutes, during which the liquid water-containing glue joint and adjacent surfaces of the wood-based panels are heated for a few seconds to minutes.
Eine abschließende.Nachhärtezeit von 45 Sek. unter Pressdruck sorgt für ein Eindringen des Klebers in die obersten Schichten der Pressholzplatten (da der Kleber nicht mehr im flüssigen Zustand zur Seite ausweichen kann), so daß sich die Materialeigenschaften der gesamten Holzschichtwand in Bezug auf Tragkraft und Stabilität dort noch erheblich erhöhen.A final curing time of 45 seconds under pressure ensures that the adhesive penetrates into the uppermost layers of the compressed wood panels (since the adhesive can no longer escape to the side in its liquid state), so that the material properties of the entire wood layer wall are significantly increased in terms of load-bearing capacity and stability.
Die massive Holzschichtwand erreicht ihre Festigkeit durch aufeinanderliegende vorzugsweise oberflächengeschliffene Pressholzplatten, zwischen die temperaturaushärtender Zwei-Komponenten-Melanin-Harzkleber eingebracht ist.The solid wood layer wall achieves its strength through stacked, preferably surface-sanded, compressed wood panels, between which temperature-curing two-component melanin resin adhesive is inserted.
Der heißaktivierte, unter Druck nachgehärteter Kleber in beispielsweise bei einer viertägigen Ausbildung vorahendenen drei Leimfugen zwischen vier insbesondere aus kleinformatigen Pressholzplatten ausgebildeten Schichten (mit in ihren Fugen gegeneinander versetzten Platten) miteinander sandwichartig versteift.The heat-activated adhesive, which is subsequently hardened under pressure, stiffens each other in a sandwich-like manner in the three glue joints provided, for example, in a four-day training course, between four layers made up in particular of small-format compressed wood panels (with panels offset from one another in their joints).
Durch die erfindungsgemäße Holzschichtwand können tragende und aussteifende Wandelemente für den von gesonderten Tragelementen freien Gebäudebau als raumhohe, in einem Stück gefertigte Wandelemente mit Dimensionen Deckenhöhe mal Länge in bis zu 12 m Länge realisiert werden.The wood layer wall according to the invention enables load-bearing and stiffening wall elements for building construction free from separate load-bearing elements to be realized as room-high wall elements manufactured in one piece with dimensions of ceiling height times length in up to 12 m length.
BOEHMERT & BOEHMERTBOEHMERT & BOEHMERT
.4..4.
Auch Fußbodenelemente mit raumüberspannden, in einem Stück gefertigte Holzschichtplatten, aus thennisch leitendem OSB-Material sind in Dimensionen kürzere Raumbreite bis 12 m Raumlänge ohne weiteres möglich.Floor elements with room-spanning, one-piece wood plywood made of thermally conductive OSB material are also easily possible in dimensions from shorter room widths up to 12 m room length.
• &phgr; · ·• φ · ·
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20211956U DE20211956U1 (en) | 2002-08-02 | 2002-08-02 | Solid wall element, for construction of interior walls, consists of at least three layers in form of pressed wood plates joined to one another by heat-hardenable two-component adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20211956U DE20211956U1 (en) | 2002-08-02 | 2002-08-02 | Solid wall element, for construction of interior walls, consists of at least three layers in form of pressed wood plates joined to one another by heat-hardenable two-component adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20211956U1 true DE20211956U1 (en) | 2003-03-20 |
Family
ID=7973781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20211956U Expired - Lifetime DE20211956U1 (en) | 2002-08-02 | 2002-08-02 | Solid wall element, for construction of interior walls, consists of at least three layers in form of pressed wood plates joined to one another by heat-hardenable two-component adhesive |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE20211956U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10306118A1 (en) * | 2003-02-14 | 2004-09-09 | Kronotec Ag | building board |
-
2002
- 2002-08-02 DE DE20211956U patent/DE20211956U1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10306118A1 (en) * | 2003-02-14 | 2004-09-09 | Kronotec Ag | building board |
| US7651751B2 (en) | 2003-02-14 | 2010-01-26 | Kronotec Ag | Building board |
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| R157 | Lapse of ip right after 6 years |
Effective date: 20090303 |