EP0839083B1 - Corps moules en composite bois-polymere, leur fabrication et leur utilisation - Google Patents

Corps moules en composite bois-polymere, leur fabrication et leur utilisation Download PDF

Info

Publication number
EP0839083B1
EP0839083B1 EP96925696A EP96925696A EP0839083B1 EP 0839083 B1 EP0839083 B1 EP 0839083B1 EP 96925696 A EP96925696 A EP 96925696A EP 96925696 A EP96925696 A EP 96925696A EP 0839083 B1 EP0839083 B1 EP 0839083B1
Authority
EP
European Patent Office
Prior art keywords
composites
wood
cellulose
containing material
wood particles
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
Application number
EP96925696A
Other languages
German (de)
English (en)
Other versions
EP0839083A1 (fr
Inventor
Hans Reinhard Striewski
Lothar Thiele
Hans-Peter Kohlstadt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0839083A1 publication Critical patent/EP0839083A1/fr
Application granted granted Critical
Publication of EP0839083B1 publication Critical patent/EP0839083B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B27N3/005—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and foam

Definitions

  • the present invention relates to formaldehyde-free molded polymer wood articles with improved water resistance, their manufacture and use.
  • Wood chipboard or particle board is generally understood to mean plates made of mechanically produced wood shavings or woody parts, which are produced by gluing with a binder under pressure.
  • Urea resins or aminoplasts, phenolic resins or mixed resins made from urea, melamine, phenol and formaldehyde can be used as synthetic resins or binders.
  • Isocyanates, in particular those based on diphenylmethane diisocyanate, and crosslinkable polymers are also used.
  • the properties of the chipboard can be varied through the size, shape and arrangement of the chips and the amount of synthetic resin or binder (approx. 5 - 10%). High-quality boards are produced in multiple layers and with particularly fine covering chips.
  • the chipboard can be coated with decorative films, primer films and veneers.
  • CA 100: 104746 relating to JP-A-58185670 discloses binders for particle boards based on a 4,4'-diphenylmethane diisocyanate fraction. There, the wood chips are moistened with water so that the aforementioned diisocyanate can be converted during hot pressing at 150 ° C and 25 kg / cm 2 .
  • the polyurethane-containing chipboard obtained has an improved flexural strength.
  • Wood-fiber chip boards are made from wood fibers or lignocellulose-containing material.
  • moisture and mechanical pressure in fiberizing plants becomes the raw material containing lignin, cellulose and hemicellulose in its fibrous, anatomical basic elements in the form of Individual fibers and fiber bundles disassembled.
  • the fiber material is shaped, compressed and pressed. Here are primarily the matting of the fibers and the natural binding forces used.
  • binders and water repellents and by The binding forces can be thermal and other post-treatments increase. So the physical and strength properties be adapted to the intended use.
  • the medium hard fiberboard are mainly in the form of medium density fibreboard (MDF) as a semi-finished product on the Market offered that are manufactured with formaldehyde-containing condensation resins become.
  • MDF medium density fibreboard
  • Such products are continual, in part Long-term evaporation of cancerogenic formaldehyde vapors no longer desired for ecological reasons.
  • the MDF an additional Coating obtained to reduce formaldehyde emissions by law lower the required limit values.
  • MDF an improved dimensional accuracy compared to natural wood with a conventional one Humidity between 35 and 85%, which, however, at certain Applications are not enough.
  • synthetic MDF made from urea-formaldehyde binders is not for use suitable under high air humidity, especially in water.
  • Polymer wood means wood-plastic combinations, how to treat them with wood Monomers or prepolymers. This is one Composite material, in which the wood with the liquid starting material soaks and then polymerizes the monomer deposited in the wood.
  • liquid monomers and solutions are preferred used, for example methacrylate prepolymers or dissolved in styrene unsaturated polyester.
  • the polymer is primarily the strength of the wood increased, especially its hardness and Pressure resistance.
  • the aesthetic impact of natural wood not only not impaired, but in many cases even increased.
  • polymer wood has so far only been used in very limited quantities Scope used for special goods, e.g. for parquet, sports equipment, Kitchen appliances and tool handles.
  • Deviating from the pure impregnation process for the production of polymer wood can be surface impregnated using the Skinpreg process made with plastics that differ under low pressure penetrate the wood without completely soaking it.
  • CA 111: 59849 relating to JP-A-01045440 discloses wood-foam compositions based on isocyanates or formaldehyde which contain sawdust as a filler.
  • the foam obtained with a density of 0.35 g / cm 3 has good strength.
  • Wood flour or sawdust is usually very finely chopped wood that is used as a filter aid, filler, admixture in woodchip coatings, etc. There, however, is not described or suggested to produce this foam under high pressure. Solvents are used.
  • CA 111: 9171 relating to JP-A-63303703 discloses moldings made of fine plant fibers or plant particles, in particular wood flour and a urethane prepolymer, which are contacted with water or steam before or after shaping.
  • Such a shaped body has a density of 0.29 g / cm 3 , a compressive strength of 5.3 kg / cm 2 and a tensile strength of 3.4 kg / cm 2 .
  • Solvents are used.
  • the present invention is therefore based on the object of a novel Provide wood moldings, the use of avoids formaldehyde-containing binders, as is customary with today's mainly used MDF is still mandatory is, and also has advantageous application properties.
  • the present invention therefore relates to a molded body according to claim 1.
  • softwood species e.g. woods of the Spruce, pine, fir, larch, birch, alder, horse chestnut, pine, aspen, Willow, poplar and linden are used.
  • hardwood types such as beech, hawthorn, sloe, ash, maple, walnut, Apple, pear, yew or oak can be used.
  • Mixtures of any kind of softwood with hardwood can be used.
  • cellulose-containing material in the invention Moldings of vegetable fibers, for example cotton, jute, Flax, hemp, bast, sisal, ramie, coconut fiber, yucca fibers or manila or chemically modified fibers such as rayon and rayon viscose fibers, Cuoxam fibers, acetate fibers and paper and cellulose yarns.
  • vegetable fibers for example cotton, jute, Flax, hemp, bast, sisal, ramie, coconut fiber, yucca fibers or manila or chemically modified fibers such as rayon and rayon viscose fibers, Cuoxam fibers, acetate fibers and paper and cellulose yarns.
  • the wood particles are in shape in the molded body according to the invention of wood chips and / or wood flour or as cellulosic material in Particle sizes of maximum 5 mm thick, 20 mm wide and 50 mm Length before.
  • the moisture or the moisture content of the wood particles or the cellulosic Material in the molded body according to the invention is usually 5 to 20% by weight. If necessary, it can be moistened with Water or steam increased or by drying at elevated Temperature can be lowered.
  • the moisture content preferably corresponds but the equilibrium moisture content of the material at ambient temperature.
  • the moldings according to the invention can e.g. for stabilization Contain wires, cables, wire nets, rods or the like.
  • the two-component polyurethane binder used in the molding according to the invention consists of a reaction product at least one polyol with at least one polyisocyanate.
  • the amount of the two reactants is always chosen so that that the polyisocyanate is used in excess, i.e. it is a Equivalence ratio of NCO to OH groups of 5 to 1, preferably but from 2: 1 to 1.2: 1.
  • An aliphatic, alicyclic is usually used as the polyisocyanate or aromatic di- or triisocyanate.
  • isocyanates are: 1,5-naphthylene diisocyanate, 4,4'-diphenylmethane diisocyanate (MDI), hydrogenated MDI (H 12 MDI), xylylene diisocyanate (XDI), tetramethylxylylene diisocyanate (TMXDI), 4,4'-diphenyldimethylmethane diisocyanate, and tetraalkyldiphenylmethane diisocyanate, 4,4'-dibenzyl diisocyanate, 1,3-phenylene diisocyanate, 1,4-phenylene diisocyanate, the isomers of tolylene diisocyanate (TDI), optionally in a mixture, 1-methyl-2,4-diisocyanatocyclohexane, 1,6-diisocyanato 2,2,4-trimethylhexane, 1,6-diis
  • diisocyanates are trimethylhexamenthylene diisocyanate, 1,4-diisocyanatobutane, 1,12-diisocyanatododecane and dimer fatty acid diisocyanate.
  • interesting partially masked polyisocyanates which allow the formation of self-crosslinking polyurethanes, such as dimeric tolylene diisocyanate.
  • prepolymers can also be used, ie oligomers with several isocyanate groups. As is known, they are obtained with a large excess of monomeric polyisocyanant in the presence of, for example, diols. HDI isocyanuratization products and HDI biuretization products are also possible.
  • Aromatic are preferred as di- or polyisocyanates
  • Isocyanates used e.g. Diphenylmethane diisocyanate, either in the form the pure isomers, as an isomer mixture of the 2,4 '- / 4,4'-isomers or also diphenylmethane diisocyanate (MDI) liquefied with carbodiimide, that e.g. is known under the trade name Isonate 143 L.
  • MDI diphenylmethane diisocyanate
  • the so-called "raw MDI" i.e. the isomer / oligomer mixture of the MDI are used, e.g. under the trade name PAPI or Desmodur VK are commercially available.
  • the diols and / or polyols for the binder are preferably suitable liquid polyhydroxy compounds with two or three hydroxyl groups per molecule, e.g. di- and / or trifunctional polypropylene glycols in Molecular weight range from 200 to 6000, preferably in the range from 400 to 3000.
  • Statistical and / or block copolymers can also be used of ethylene oxide and propylene oxide are used.
  • Another The group of polyether polyols to be used preferably are Polytetramethylene glycols, e.g. through the acidic polymerization of Tetrahydrofuran can be produced.
  • the Molecular weight range of the polytetramethylene glycols between 200 and 6000, preferably in the range of 40 to 4000.
  • liquid polyesters which pass through Condensation of di- or tricarboxylic acids, e.g. Adipic acid, sebacic acid and glutaric acid, with low molecular weight diols or triols, such as. Ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, Dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, glycerin or trimethylolpropane, can be produced.
  • di- or tricarboxylic acids e.g. Adipic acid, sebacic acid and glutaric acid
  • diols or triols such as. Ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, Dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, glycerin or trimethylolpropane
  • polyesters based on ⁇ -caprolactone also “polycaprolactones” called.
  • polyester polyols of oleochemical origin can also be used become.
  • Such polyester polyols can, for example, by complete ring opening of epoxidized triglycerides at least one partially olefinically unsaturated fatty acid-containing fat mixture with one or more alcohols with 1 to 12 carbon atoms and subsequent partial change of the triglyceride derivatives Alkyl ester polyols with 1 to 12 carbon atoms in the alkyl radical are prepared.
  • Other suitable polyols are polycarbonate polyols and dimer diols (Fa. Henkel) and in particular castor oil and its derivatives.
  • Hydroxy-functional polybutadienes e.g. under the Trade names "Poly-bd" are available for the invention Compositions are used as polyols.
  • Another object of the present invention is to provide a manufacturing process for such a shaped body with the features of claim 10.
  • the aforementioned mixing and reaction steps at temperatures of 10 to 30 ° C, in particular at room temperature (18 - 25 ° C).
  • the pressure treatment is carried out using the method according to the invention by reacting the reaction mixture under its own reaction pressure. Under certain circumstances, however, can also be done in a manner known per se Inert gas or water vapor pressure can be supplied from the outside.
  • the reaction time is in the mold and thus the formation of the shaped body 5 to 30 minutes, preferably 10 to 20 minutes.
  • sealable pressure-tight seals are used Forms.
  • a mold release agent in particular a Teflon® layer.
  • Acmos release agents for PUR with the type designations 39-5001, 39-4487, 37-3200 and 36-3182.
  • the present invention relates to the use of the Shaped body of the aforementioned type or produced according to the above Kind in the form of plates, moldings, cubes, cuboids, etc., especially in the Wet area or outdoor area.
  • the present concerns further Invention also the use of this shaped body according to is available as a semi-finished or cladding in the Construction area.
  • the molded body according to the invention as Packaging material, flooring, as stairs or decorative beams be used.
  • These aforementioned uses of the shaped body relate preferably to the interior of vehicles, in particular Motor vehicles such as passenger vehicles and camping vehicles, but also of caravans, ships and airplanes.
  • polyol component Trifunctional polether polyol based on glycerin, 83.8 Ethylene and propylene oxide glycerin 6.0 Soy polyol modified with ethylene oxide 6.0 water 2.2 Tegostab B 8404 (Goldschmidt) 1.3 Dibutyltin dilaurate 0.7
  • Isocyanate component Diphenymethane-4,4 'diisocyanant 100 (Raw MDI with a viscosity of 200-220 mPas)
  • 1500 g of wood chips from pine wood with a chip length of up to 4 cm are mixed intensively with 1000 g of the polyol component of the foam system. After adding 1000 g of the isocyanate and mixing again, the mixture was quickly placed in a metal mold of about 6.5 dm 3 in size. The mold was immediately closed with a lid. After 30 minutes, the foam-containing polymer wood molded body was removed from the mold.
  • the molded body obtained in this way has a density of 0.6 g / cm 3 , a smooth surface and can be machined like wood, for example sawing, planing, grinding and drilling. Threads can be cut into the material.
  • the quality of the molded article obtained according to the production example was compared with that of a medium-density fiberboard (MDF board) which was produced with condensation resins containing formaldehyde and had an identical thickness.
  • MDF board medium-density fiberboard
  • the molded article according to the invention has a significantly lower water absorption value than an MDF board.
  • Water absorption capacity and swelling of the moldings according to the invention in comparison to MDF boards Density [g / cm] Water absorption [%] after 24 hours

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

L'invention concerne un corps moulé en composite bois-polymère, à base de particules de bois et/ou d'un matériau contenant de la cellulose ainsi qu'au moins un liant, le liant étant un liant polyuréthane à deux composants qui dissocie l'anhydride carbonique et qui est composé d'un polyol, d'eau et d'un polyisocyanate. L'invention est caratérisée en ce que le liant représente une quantité comprise entre 10 et 200 parties en poids par rapport à 100 parties en poids de particules de bois et/ou du matériau contenant de la cellulose. Le corps moulé en composite bois-polymère est obtenu par réaction des particules de bois et/ou du matériau cellulosique et du liant à une pression d'au moins 1 kp/cm2, notamment comprise entre 50 kp/cm2 et 100 kp/cm2.

Claims (19)

  1. Corps moulé en particules de bois et/ou en matériau contenant de la cellulose liés par du polyuréthane, qui sont renforcés à leur surface ou dans la masse par le polyuréthane, que l'on peut obtenir par les étapes opératoires suivantes :
    utilisation d'un liant de polyuréthane à deux composants dégageant du dioxyde de carbone avec comme constituants de départ un polyol, de l'eau et un polyisocyanate en une quantité de 10 à 200 parties en poids, par rapport à 100 parties en poids des particules de bois et/ou du matériau contenant de la cellulose,
    mélange des particules de bois et/ou du matériau contenant de la cellulose avec le composant polyol liquide et l'eau,
    addition au mélange du polyisocyanate en excès, par rapport au polyol, et
    moulage dans un moule étanche fermé en appliquant une pression comprise entre 1 et 100 bars.
  2. Corps moulé selon la revendication 1,
    caractérisé en ce que
    comme bois de départ pour les particules de bois, on utilise des espèces de bois mous comme par exemple les conifères ou des espèces de bois durs comme par exemple le hêtre ou le chêne.
  3. Corps moulé selon au moins une des revendications précédentes,
    caractérisé en ce qu'
    on utilise comme matériau cellulosique des fibres végétales comme le coton, le jute, le lin, le chanvre ou des fibres chimiquement modifiées comme la laine cellulosique.
  4. Corps moulé selon au moins une des revendications précédentes,
    caractérisé en ce que
    les particules de bois sont utilisées sous forme de copeaux de bois ou de farines de bois ayant une taille particulaire maximale de 1 mm d'épaisseur, 20 mm de largeur et 50 mm de longueur.
  5. Corps moulé selon au moins une des revendications précédentes,
    caractérisé en ce que
    l'humidité des particules de bois et/ou du matériau cellulosique correspond à 5 à 2 % en poids.
  6. Corps moulé selon au moins une des revendications précédentes,
    caractérisé en ce qu'
    il contient en outre des inclusions ou des renforcements comme par exemple des fils, des câbles, des réseaux métalliques ou des baguettes.
  7. Corps moulé selon au moins une des revendications précédente,
    caractérisé en ce que
    le polyisocyanate est un di- ou tri-isocyanate, en particulier le 2,2'-diisocyanate de diphényl méthane (sous forme de produit brut).
  8. Corps moulé selon au moins une des revendications précédentes,
    caractérisé en ce que
    le polyol est un mélange diol/triol de polyéther- et de polyester-polyol avec de l'eau.
  9. Corps moulé selon au moins une des revendications précédentes,
    caractérisé en ce qu'
    il présente une densité de 0,40 g/cm3 à 0,65 g/cm3.
  10. Procédé de production d'un corps moulé en particules de bois et/ou en matériau contenant de la cellulose liés par du polyuréthane, qui sont renforcés à leur surface ou dans la masse par le polyuréthane, que l'on peut obtenir par les étapes opératoires suivantes :
    utilisation d'un mélange de polyuréthane à deux composants dégageant du dioxyde de carbone avec comme constituants de départ un polyol, de l'eau et un polyisocyanate en une quantité de 10 à 200 parties en poids, par rapport à 100 parties en poids des particules de bois et/ou du matériau contenant de la cellulose,
    mélange des particules de bois et/ou du matériau contenant de la cellulose avec le composant polyol liquide et l'eau,
    addition au mélange du polyisocyanate en excès, par rapport au polyol,
    pressage dans un moule étanche et fermé en appliquant une pression comprise entre 1 et 100 bars,
    en utilisant dans le moule un agent séparateur et le corps moulé étant démoulé après polymérisation.
  11. Procédé selon la revendication 10,
    caractérisé en ce que
    les étapes (a) à (c) sont conduites à des températures de 10 à 30°C, en particulier à la température ambiante (entre 18 et 25°C).
  12. Procédé selon la revendication 10,
    caractérisé en ce que la réaction du mélange réactionnel dans l'étape c) s'effectue sous la pression de réaction propre.
  13. Procédé selon la revendication 10,
    caractérisé en ce que
    le temps de réaction dans l'étape c) s'élève à 5 à 30 minutes, de préférence de 10 à 20 minutes.
  14. Procédé selon au moins une des revendications 10 à 13,
    caractérisé en ce qu'
    on utilise comme moule un moule de métal ou de matière plastique obturable.
  15. Utilisation du corps moulé selon au moins une des revendications 1 à 9 ou fabriqué selon au moins une des revendications 10 à 14,
    sous forme de plaques de profilés, de cubes, de parallélogrammes, etc., en particulier dans le domaine humide ou en extérieur.
  16. Utilisation du corps moulé selon au moins une des revendications 1 à 9, ou fabriqué selon au moins une des revendications 10 à 14,
    comme semi-produit ou habillage dans le domaine du bâtiment.
  17. Utilisation du corps moulé selon au moins une des revendications 1 à 9, ou fabriqué selon au moins une des revendications 10 à 14,
    comme matériau d'emballage, revêtement de sol, marche d'escalier ou poutre décorative.
  18. Utilisation du corps moulé selon la revendication 7, dans l'agencement interne des véhicules, en particulier des véhicules automobiles de tourisme et les véhicules de camping, mais également dans des véhicules habitables, des bateaux et des avions.
  19. Utilisation du corps moulé selon la revendication 16, dans des buts décoratifs en extérieur ou dans le domaine domestique et industriel, en particulier dans le domaine des cuisines et des sanitaires.
EP96925696A 1995-07-17 1996-07-10 Corps moules en composite bois-polymere, leur fabrication et leur utilisation Expired - Lifetime EP0839083B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19526032 1995-07-17
DE1995126032 DE19526032A1 (de) 1995-07-17 1995-07-17 Polymerholz-Formkörper, ihre Herstellung und Verwendung
PCT/EP1996/003007 WO1997003794A1 (fr) 1995-07-17 1996-07-10 Corps moules en composite bois-polymere, leur fabrication et leur utilisation

Publications (2)

Publication Number Publication Date
EP0839083A1 EP0839083A1 (fr) 1998-05-06
EP0839083B1 true EP0839083B1 (fr) 2001-04-18

Family

ID=7767053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96925696A Expired - Lifetime EP0839083B1 (fr) 1995-07-17 1996-07-10 Corps moules en composite bois-polymere, leur fabrication et leur utilisation

Country Status (5)

Country Link
EP (1) EP0839083B1 (fr)
JP (1) JP3874203B2 (fr)
CA (1) CA2244005C (fr)
DE (2) DE19526032A1 (fr)
WO (1) WO1997003794A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19756154C1 (de) * 1997-12-17 1999-10-28 Henkel Kgaa Formkörper aus Holzteilchen und PU-Bindemittel, ihre Herstellung und Verwendung
EP1115942B1 (fr) * 1998-06-17 2017-02-15 TreeFree Biomass Solutions, Inc. Panneau composite à base d'arundo donax et procédé de production du même
DE10356767A1 (de) * 2003-12-05 2005-07-07 Henkel Kgaa Platten und Formkörper auf Basis von Polyurethanbindemittel
DE102004019529A1 (de) * 2004-04-22 2005-11-10 Henkel Kgaa Verfahren zur Herstellung von Formkörpern auf Basis von Polyurethan-Bindemitteln und cellulosehaltigem Material
DE202006009318U1 (de) * 2006-05-08 2007-09-20 Dammers, Dirk Platte, insbesondere Paneel zur Verkleidung von Wänden bzw. Decken oder als Bodenbelag
DE102007019416A1 (de) * 2006-07-19 2008-01-24 Pfleiderer Holzwerkstoffe Gmbh & Co. Kg Grundwerkstoff, dessen Herstellungsverfahren sowie Verwendung
DE102007015802A1 (de) 2007-03-30 2008-10-02 Henkel Ag & Co. Kgaa Formkörper aus cellulosehaltigen Materialien
DE102008026266A1 (de) 2008-06-02 2009-12-03 Henkel Ag & Co. Kgaa Formkörper aus verklebten Granulaten
EP2349663B1 (fr) 2008-10-21 2016-12-14 Uniboard Canada Inc. Panneaux de particules monocouches gaufres et procedes de preparation associes
DE102009056843A1 (de) * 2009-12-02 2011-06-09 Michanickl, Andreas, Prof.Dr. Leichte Holzwerkstoffplatte
DE102010047254B4 (de) * 2010-10-01 2017-02-02 Doka Industrie Gmbh Holzverbundwerkstoff
PL244632B1 (pl) * 2020-03-10 2024-02-19 Politechnika Gdanska Sposób wytwarzania materiałów poliuretanowych z polioli, izocyjanianu i odpadów po przerobie drewna i/lub odpadów drewnopodobnych

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228403B (de) * 1965-11-15 1966-11-10 Novopan Ges M B H & Co Deutsch Verfahren und Vorrichtung zur Herstellung von Spanplatten oder -koerpern
DE1653174A1 (de) * 1966-05-10 1970-06-04 Novopan Gmbh Verfahren zur Herstellung von Spanplatte oder -koerpern
US3557263A (en) * 1967-08-15 1971-01-19 Alan A Marra Process for the preparation of rigid composite wood products
DE1808349A1 (de) * 1968-11-12 1970-05-21 Remy Friedr Nfg Verfahren zur Herstellung von Leichtbaukoerpern bzw.-platten
JPS57182420A (en) * 1981-05-07 1982-11-10 Gunei Kagaku Kogyo Kk Manufacturing light particle board
JPS57185136A (en) * 1981-05-09 1982-11-15 Gunei Kagaku Kogyo Kk Manufacture of particle board
JPS59111832A (ja) * 1982-12-17 1984-06-28 Mitsui Toatsu Chem Inc パ−テイクルボ−ドの製造方法

Also Published As

Publication number Publication date
EP0839083A1 (fr) 1998-05-06
JP3874203B2 (ja) 2007-01-31
CA2244005C (fr) 2008-03-18
WO1997003794A1 (fr) 1997-02-06
JPH11509149A (ja) 1999-08-17
DE59606806D1 (de) 2001-05-23
DE19526032A1 (de) 1997-02-20
CA2244005A1 (fr) 1997-02-06

Similar Documents

Publication Publication Date Title
DE2109686C3 (de) Verfahren zur Herstellung oder Veredlung lignozellulosehaltiger Werkstoffe
US6822042B2 (en) Saccharide-based resin for the preparation of composite products
DE69509546T2 (de) Verfahren zur herstellung eines lignocellulosematerials, das zur herstellung eines fertigproduktes geeignet ist
EP1037733B1 (fr) Corps moules constitues de particules de bois et d'un liant au polyurethanne, leur production et leur utilisation
DE60132476T2 (de) Polyisocyanatzusammensetzungen als bindemittel für verbundstoffe aus lignocellulosematerial
DE10012427A1 (de) Holzfaserplatte und Herstellungsverfahren dafür
EP0839083B1 (fr) Corps moules en composite bois-polymere, leur fabrication et leur utilisation
EP0019859B1 (fr) Application de liants à base de polyisocyanates modifiés par un acide sulfonique ne collant pas au moule pour la préparation de pièces moulées
EP2184144A1 (fr) Composition de polyisocyanate utilisée pour lier des matériaux lignocellulosiques
EP0634433B1 (fr) Utilisation de mélanges comme liant pour la préparation de matériaux composites
EP0565109B1 (fr) Procédé pour coller des fragments de bois
DE69613222T2 (de) Verfahren zur bindung von lignozellulosematerial
WO2014005877A1 (fr) Dérivés du bois multicouches légers à base de matériaux contenant de la lignocellulose comprenant un cœur et deux couches de recouvrement, contenant de la cellulose traitée, des fibres naturelles traitées, des fibres synthétiques ou des mélanges de celles-ci dans le cœur
EP0084313B1 (fr) Procédé pour la préparation d'émulsions aqueuses de polyisocyanates
US20030125458A1 (en) Process for producing cellulose/plastic composites and product of the process
EP1325050A1 (fr) Procede de production de materiaux a base de bois contenant des liants a base de polyisocyanate stables au stockage avec utilisation de catalyseurs latents
DE102005051716A1 (de) Bindemittelzusammensetzung für Holzwerkstoffe
EP2184143A1 (fr) Composition de polyisocyanate utilisée pour lier des matériaux lignocellulosiques
EP2567798B1 (fr) Utilisation de polyamine dans des matières dérivées du bois pour la réduction de l'émission d'aldéhydes et/ou d'acides
DE1653199A1 (de) Verfahren zur Herstellung von mit Deckschichten versehenen Formkoerpern
EP0067426B1 (fr) Fabrication de planches de construction par utilisation de liant isocyanate-aldéhyde
DE10344254B4 (de) Formkörper und Verfahren zu ihrer Herstellung
DE4200324A1 (de) Verwendung eines isocyanatgruppen aufweisenden sumpfprodukts als bindemittel bei der verpressung von substraten zur herstellung von presswerkstoffen
DE3108538A1 (de) Selbsttrennende bindemittel auf basis phosphorsaeurediester-modifizierter polyisocyanate sowie deren verwendung in einem verfahren zur herstellung von formkoerpern

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

17P Request for examination filed

Effective date: 19980109

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB IT NL

17Q First examination report despatched

Effective date: 19980429

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KOHLSTADT, HANS-PETER

Inventor name: THIELE, LOTHAR

Inventor name: STRIEWSKI, HANS, REINHARD

REF Corresponds to:

Ref document number: 59606806

Country of ref document: DE

Date of ref document: 20010523

ET Fr: translation filed
ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010719

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120704

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20120713

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20120710

Year of fee payment: 17

BERE Be: lapsed

Owner name: *STRIEWSKI HANS REINHARD

Effective date: 20130731

Owner name: *HENKEL K.G.A.A.

Effective date: 20130731

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20140201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140201

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130731

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130710

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160120

Year of fee payment: 20

Ref country code: IT

Payment date: 20160127

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20160121

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59606806

Country of ref document: DE