EP2551081A1 - Élément de moulage et son procédé de fabrication - Google Patents
Élément de moulage et son procédé de fabrication Download PDFInfo
- Publication number
- EP2551081A1 EP2551081A1 EP12173806A EP12173806A EP2551081A1 EP 2551081 A1 EP2551081 A1 EP 2551081A1 EP 12173806 A EP12173806 A EP 12173806A EP 12173806 A EP12173806 A EP 12173806A EP 2551081 A1 EP2551081 A1 EP 2551081A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- binder
- molded part
- molding compound
- molding
- mass
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000465 moulding Methods 0.000 claims abstract description 74
- 239000011230 binding agent Substances 0.000 claims abstract description 52
- 150000001875 compounds Chemical class 0.000 claims abstract description 40
- 239000007787 solid Substances 0.000 claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 239000000470 constituent Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 15
- 229920001187 thermosetting polymer Polymers 0.000 claims description 9
- 229920000877 Melamine resin Polymers 0.000 claims description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 239000004640 Melamine resin Substances 0.000 claims description 3
- HANVTCGOAROXMV-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.NC1=NC(N)=NC(N)=N1 HANVTCGOAROXMV-UHFFFAOYSA-N 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000004890 Hydrophobing Agent Substances 0.000 claims description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 19
- 239000000654 additive Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000007900 aqueous suspension Substances 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000256602 Isoptera Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
Definitions
- the invention relates to a process for the production of molded parts from a molding compound containing as constituents a filler and a thermosetting binder with a liquid component, comprising the steps of mixing the constituents of the molding compound, compressing the molding compound to a preform in a cold press mold at a temperature in which the binder does not cure and compress the preform to the finished molding in a hot press mold at a temperature at which the binder cures.
- the invention relates to a low-distortion molded part.
- the particular non-rising molding compound contains a filler and a thermosetting binder.
- a filler and a thermosetting binder.
- comminuted lignocellulose-containing particles for example comminuted and dried wood chips, bagasse fibers or other chip-shaped, fibrous materials are used as fillers.
- the thermosetting binder has the property that it does not harden at normal ambient temperature or hardens so slowly that it can be stored and processed for prolonged periods, but with a heating of the molding compound within a hot press mold within a very short time, for example within a few minutes , hardens.
- thermosetting binders such as melamine-urea-formaldehyde or phenol-formaldehyde resin in aqueous solution or suspensions with hardeners and additives used.
- the binder content of the molding compound is so low in the generic method that the molding compound is not flowable during the pressing process. It is therefore in such molding masses of non-rising molding compounds.
- the molding compounds generally have a rough and partially open-pored surface, so that moisture and dirt can penetrate into the molding.
- the moldings are therefore at least partially, but preferably completely provided with a cover layer, which is pressed during the compression of the preform to the finished molded part on the surface thereof.
- the cover layer creates a smooth and closed and possibly decorative surface.
- the non-rising molding compound is at one of the DE-C-1284624 processes processed in such a way that first the molding compound is pressed in a pre- or cold-press molding to form a pre-compact, without causing the binder hardens.
- This pressing process is also referred to as cold pressing.
- Cold pressing produces from the molding compound the preform that is already very similar to the finished molding, which is already a solid, manageable body.
- the pre-compact is taken from the pre-press mold and then pressed in a hot press mold at elevated temperature of about 130 to 160 degrees Celsius to the finished molded part, during which pressing the binder hardens. If the molded part is to be provided with a cover layer, the coating of the preform with the cover layer is carried out during final pressing in the finished press mold.
- the pressing tools have a pressing tool upper part and a pressing tool lower part, which are profiled in accordance with the shape of the molded part to be pressed.
- the curing of the preform in the hot press is carried out by heat conduction, but in particular by the resulting burst of steam, which comes from the moisture in the molding compound and from the binder.
- the object of the invention is to propose a method for the production of particular flat moldings of the type mentioned above and a molded part that avoids distortion of the molded article with one-sided heat without additional processing steps.
- the solution to this problem is based on the finding that in the finished molded part, in particular in moldings which are completely provided with a cover layer, the remaining water content is largely responsible for any distortion of the molding in unilateral heat, as that on the heated surface of the molding partially evaporated water condenses on the cooler, opposite surface of the molded part and there leads to an increase in volume, the delay caused.
- the object is achieved in a process for the production of moldings of the type mentioned in that the molding compound is added as a further component of the binder, a powdery solid resin, so that the water content in the finished molded part less than 9 wt .-% based on the mass of the finished molding is, wherein the powdered solid resin is added to the molding compound before or after the introduction of the liquid component of the binder.
- thermosetting binders in aqueous solution or suspensions used in known generic processes are partially replaced by the powdered solid resin as binder so that the water content in the finished molding is less than 9% by weight, based on the mass of the finished molding is.
- at least 30% by weight, preferably at least 40% by weight, based on the mass of the binder is replaced by the powdered solid resin.
- the molding compound is based on the mass of the finished molding 70-85 wt .-% fillers and the remainder of the binder added. It follows from the addition of, for example, 85 wt.% Fillers, a minimum addition of powdered solid resin of 4.5 wt.% Based on the mass of the finished molding.
- the maximum amount of powdered solid resin must be added to the mass of the binder based on the mass of the binder so that the required cold tack is maintained.
- the so-called cold tack refers to the property of the binder, in the wet state, ie even before the curing of the binder, to hold together the filler to be bonded by cohesion.
- the cold tack is in the process of the invention required in order to handle the pre-compact with sufficient strength between the cold pressing process in the cold press mold and the subsequent hot pressing process in the hot-press mold without the pre-compact suffered damage.
- the water content in the finished molded part is preferably not less than 5% by weight, based on the mass of the finished molded part.
- the pre-compact no longer has sufficient strength to be able to handle it between the cold-press mold and the hot-press mold without damage.
- the powdery solid resin is added to the molding compound before or after the introduction of the liquid component of the binder. This avoids that the viscosity of the liquid component of the binder increases too much, which would be the case with a direct addition (stirring) of the powdery solid resin into the liquid component.
- the addition of the powdery solid resin according to the invention therefore takes place immediately before the mixing of the ingredients and the compression of the molding compound.
- the powdery solid resin is either applied directly to the filler or added after stirring the liquid component of the binder in the molding compound.
- the exclusively liquid component of the binder in particular a thermosetting synthetic resin in aqueous solution, is replaced by the powdery solid resin, for example melamine resin, whereby the water content in the finished molding is below 9% by weight, usually about 8%. % By weight is reduced.
- the powdery solid resin for example melamine resin
- the water resistance of the molded part is improved by at least partially exposing the surface of the preform to a liquid medium.
- a liquid medium In the case of plate-shaped moldings, at least the edge regions are exposed to the liquid medium.
- an aqueous hydrophobing solution is applied as the liquid medium instead of water, an even better water resistance is achieved. Exposing the surface of the pre-compact to liquid media causes the curing of the melamine resin components of the binder to be accelerated, thereby improving the water resistance.
- an aqueous hydrophobing agent for example, an aqueous paraffin emulsion or dispersion is suitable, as sold by the company. Sasol under the trademark Hydrowax 550.
- the molding compound gives the finished molding usually an unsightly and also rough or pore-containing surface, so that dirt and moisture can easily penetrate and settle.
- the surface of the pre-compact is at least partially, but preferably completely provided with at least one cover layer.
- the cover layer is placed on the surface of the pre-press and pressed onto the molded part.
- the topcoat creates a smooth and closed surface in any hue, grain or pattern.
- two cover layers are applied, namely a decorative layer, for example of a woven fabric, a veneer, a printed paper foil or a plastic film, over which a transparent protective layer is arranged as a second cover layer.
- a protective layer for example, a clear overlay paper, consisting of unfilled alpha-cellulose paper or a, with a thermoset - mostly on Melamine-based - soaked glass fiber fleece used.
- the transparent protective layer can also be produced by a synthetic resin layer on the decorative layer.
- the molding produced by the process according to the invention contains, based on the mass of the molding 70-85 wt .-% fillers and the balance binder.
- This composition corresponds to the composition of a molded article produced by the conventional method.
- the proportion of water in the finished molded part is significantly reduced.
- the water content is between 5 and 9 wt .-% based on the mass of the molding, usually by 8 wt .-%.
- a molding compound for producing the low-distortion molding contains 70-85 wt .-% of fillers based on the mass of the molding and the remainder of the binder, wherein the binder contains a liquid component and based on the mass of the binder at least 30 wt .-% as a powdered solid resin ,
- the fillers are preferably lignocellulose-containing particles, such as comminuted and dried wood chips.
- the binder comprises melamine-containing synthetic resin, such as, for example, a melamine urea-formaldehyde or phenol-formaldehyde resin and optionally additives. Additives are used for various reasons and mostly occur only in small amounts of at most 3% by weight, based on the mass of the molding. Paraffin, which makes up the largest proportion of the additives, for example in the form of melt wax or paraffin emulsion, improves the swelling properties of the molding.
- fungicides or insecticides to protect the molded article against biological attack, for example by termites or fungi.
- chromium and / or boron-containing preservatives may be considered.
- Wood is shredded as raw material by hackers and chipper to chips.
- the chips require a required nominal humidity. Since the chips usually do not meet this requirement, the chips are dried and sighted to rid them of heavy parts, such as plastic, metal, etc. as far as possible. Subsequently, the dried and sighted chips are mixed with a binder, in particular comprising a thermosetting synthetic resin in aqueous solution or suspension. After introducing the liquid component of the binder, the powdery solid resin is introduced into the molding compound and the constituents of the molding compound are mixed. The prepared molding compound is conveyed to an intermediate bunker before the cold press with a cold press mold.
- the molding compound is discharged and vibrated in the cold press mold of the cold press and then pressed into a pre-compact.
- the molding compound is filled into the cold press with a layer thickness that can be about three to seven times the finished molded part. By pressing the molding compound in the cold press, the molding compound is compressed to almost the final dimension of the molding.
- the pre-compact of the cold-press mold is removed from the cold press and sprayed in the marginal areas with water or hydrophobing solution.
- the preform thus prepared is placed in a one-step hot pressing process together with at least one decorative layer in the hot press mold of a hot press and pressed to the finished molded part at a temperature at which the binder hardens.
- the temperature moves in a range between 130 degrees - 160 degrees Celsius.
- the preform is cured in a first stage under pressure and temperature in a temperature range between 130 degrees - 160 degrees Celsius in the hot press. Subsequently, the cured pre-compact is provided, at least in part, with a decorative layer. In a second stage of the hot pressing process, the cover layer with the hardened pre-compact is pressed into the finished molded part.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011052301A DE102011052301A1 (de) | 2011-07-29 | 2011-07-29 | Formteil und Verfahren zu dessen Herstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2551081A1 true EP2551081A1 (fr) | 2013-01-30 |
Family
ID=46419941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12173806A Withdrawn EP2551081A1 (fr) | 2011-07-29 | 2012-06-27 | Élément de moulage et son procédé de fabrication |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2551081A1 (fr) |
| DE (1) | DE102011052301A1 (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015039674A1 (fr) * | 2013-09-19 | 2015-03-26 | Weima Maschinenbau Gmbh | Procédé et dispositif destinés à être utilisés pour la production d'une matière fibreuse |
| EP3072654A1 (fr) * | 2015-03-26 | 2016-09-28 | Topalit GmbH | Procédé de fabrication d'une pièce de formage plane |
| WO2018210165A1 (fr) * | 2017-05-15 | 2018-11-22 | 中南林业科技大学 | Dispositif d'application d'adhésif hiérarchique pas à pas pour matériau composite inorganique à base de résidus de traitement forestier et agricole, et procédé d'application d'adhésif |
| EP3481761A4 (fr) * | 2016-07-06 | 2020-07-29 | Sonoco Development, Inc. | Bobine constituée de composants moulés |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1284624B (de) | 1964-10-03 | 1968-12-05 | Pag Presswerk Ag | Verfahren und Vorrichtung zur Herstellung von mit einer Decklage versehenen Formteilen aus einer nicht steigfaehigen Pressmasse |
| US6180257B1 (en) * | 1996-10-29 | 2001-01-30 | Crane Plastics Company Limited Partnership | Compression molding of synthetic wood material |
| US20070111019A1 (en) * | 2005-11-04 | 2007-05-17 | Ainsworth Lumber Co., Ltd. | Methods of manufacturing engineered wood products |
| DE102006062285A1 (de) * | 2006-12-22 | 2008-06-26 | Fritz Egger Gmbh & Co. | Faserplatte und Verfahren zu deren Herstellung |
| US20100075095A1 (en) * | 2008-09-19 | 2010-03-25 | Style Limited | Manufactured wood product and methods for producing the same |
| DE202010012905U1 (de) | 2010-11-16 | 2011-01-05 | Werzalit Gmbh + Co. Kg | Holzwerkstoff-basierte Tischplatte für den Außenbereich |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3931384A (en) * | 1972-10-02 | 1976-01-06 | Plexowood, Inc. | Method of making end frames for upholstered furniture |
| DE4342678A1 (de) * | 1993-12-15 | 1995-06-22 | Karl Schedlbauer | Strang- oder strangrohrgepreßte Formteile, insbesondere Platten |
-
2011
- 2011-07-29 DE DE102011052301A patent/DE102011052301A1/de not_active Withdrawn
-
2012
- 2012-06-27 EP EP12173806A patent/EP2551081A1/fr not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1284624B (de) | 1964-10-03 | 1968-12-05 | Pag Presswerk Ag | Verfahren und Vorrichtung zur Herstellung von mit einer Decklage versehenen Formteilen aus einer nicht steigfaehigen Pressmasse |
| US6180257B1 (en) * | 1996-10-29 | 2001-01-30 | Crane Plastics Company Limited Partnership | Compression molding of synthetic wood material |
| US20070111019A1 (en) * | 2005-11-04 | 2007-05-17 | Ainsworth Lumber Co., Ltd. | Methods of manufacturing engineered wood products |
| DE102006062285A1 (de) * | 2006-12-22 | 2008-06-26 | Fritz Egger Gmbh & Co. | Faserplatte und Verfahren zu deren Herstellung |
| US20100075095A1 (en) * | 2008-09-19 | 2010-03-25 | Style Limited | Manufactured wood product and methods for producing the same |
| DE202010012905U1 (de) | 2010-11-16 | 2011-01-05 | Werzalit Gmbh + Co. Kg | Holzwerkstoff-basierte Tischplatte für den Außenbereich |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015039674A1 (fr) * | 2013-09-19 | 2015-03-26 | Weima Maschinenbau Gmbh | Procédé et dispositif destinés à être utilisés pour la production d'une matière fibreuse |
| EP3072654A1 (fr) * | 2015-03-26 | 2016-09-28 | Topalit GmbH | Procédé de fabrication d'une pièce de formage plane |
| EP3481761A4 (fr) * | 2016-07-06 | 2020-07-29 | Sonoco Development, Inc. | Bobine constituée de composants moulés |
| WO2018210165A1 (fr) * | 2017-05-15 | 2018-11-22 | 中南林业科技大学 | Dispositif d'application d'adhésif hiérarchique pas à pas pour matériau composite inorganique à base de résidus de traitement forestier et agricole, et procédé d'application d'adhésif |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011052301A1 (de) | 2013-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0344231B1 (fr) | Procede de fabrication d'un corps en resine synthetique, eventuellement en forme de panneau, moule par compression et produit preliminaire utilise dans ce procede | |
| EP0700329B1 (fr) | Procede de fabrication de materiaux composites a partir de matieres premieres renouvelables | |
| DE69113808T2 (de) | Klebstoffzusammensetzung bestehend aus Isocyanat, Phenolformaldehyd und Tannin zur Herstellung von Sperrholzplatten für die Aussenanwendung. | |
| EP3205496B1 (fr) | Plaque composite en materiau derive du bois comprenant un palier intermediaire en contreplaque | |
| EP2987632B1 (fr) | Plaque composite en matériau dérivé du bois | |
| DE4030586A1 (de) | Verfahren zum formpressen von plattenfoermigem holzfasermaterial sowie durch formpressen hergestellte plattenfoermige holzfaserelemente, beispielsweise tuerschalen oder tuerelemente | |
| EP2551081A1 (fr) | Élément de moulage et son procédé de fabrication | |
| EP2961580B1 (fr) | Plaque en bois et en matériau composite et son procédé de fabrication | |
| EP2081743B1 (fr) | Panneaux de particules et/ou de fibres contenant du pop-corn et procédé de fabrication | |
| EP2355965B1 (fr) | Composition et procédé de fabrication d'un panneau de bois ou d'un panneau de fibres de bois | |
| DE10129750B4 (de) | Werkstoff aus Holzpartikeln, Bindemittel und Zuschlagstoffen sowie Verfahren zu seiner Herstellung | |
| EP1575744B1 (fr) | Materiau combine et son procede de realisation | |
| DE19909607A1 (de) | Verfahren zur Herstellung von plattenförmigen Produkten | |
| DE68903544T2 (de) | Methode zur herstellung von faserplatten. | |
| WO2009080748A1 (fr) | Dérivés de glyoxal en tant que liants et agents de réticulation | |
| WO1999004965A1 (fr) | Materiau sous forme de panneau | |
| DE10204321B4 (de) | Formteil und Verfahren zu dessen Herstellung | |
| DE1808375A1 (de) | Verfahren zum Herstellen eines Presswerkstoffes | |
| CH645394A5 (en) | Process for the production of mouldings based on thermoplastic dispersions and wood particles | |
| AT526970A1 (de) | Verfahren zur Herstellung eines Verbundwerkstoffs | |
| EP4008553A1 (fr) | Procédé et dispositif de fabrication de pièces moulées | |
| DE202020106955U1 (de) | Vorrichtung zur Herstellung von Formteilen | |
| DE2554658C3 (de) | Verfahren zur Herstellung von Preßstofflächengebilden | |
| WO2021148271A1 (fr) | Procédé de fabrication de panneau plaqué | |
| EP2452590A1 (fr) | Plateau de table basé sur une matière dérivée du bois |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| 17P | Request for examination filed |
Effective date: 20130717 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20160101 |