WO2006092331A2 - Verfahren zur herstellung von holzwerkstoffen - Google Patents
Verfahren zur herstellung von holzwerkstoffen Download PDFInfo
- Publication number
- WO2006092331A2 WO2006092331A2 PCT/EP2006/001980 EP2006001980W WO2006092331A2 WO 2006092331 A2 WO2006092331 A2 WO 2006092331A2 EP 2006001980 W EP2006001980 W EP 2006001980W WO 2006092331 A2 WO2006092331 A2 WO 2006092331A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- veneer
- urea compound
- wood
- urea
- hydroxymethyl
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31591—Next to cellulosic
Definitions
- the present invention relates to a process for the production of wood-based materials which have at least one thin veneer layer adhesively bonded to a carrier or with further fuming layers.
- the method according to the invention makes it possible to produce veneer materials in a simple manner. Damage to the veneers occurs in the method according to the invention not or only to a small extent. Another advantage is that the amount of sizing agent for producing a solid composite of the veneer with the carrier can be reduced.
- the method provides veneer materials with improved weathering stability, in particular a reduced shrinkage and swelling behavior with changing ambient humidity. If the impregnated veneer layer forms at least one surface of the veneer material, these surfaces of the resulting materials also have an increased hardness (Brinell hardness).
- the veneer materials according to the invention have an improved resistance to attack by wood-damaging organisms, without the need to use conventional biocides.
- the invention therefore also relates to the wood materials obtainable by the process described here.
- Suitable types of wood for the veneers to be treated according to the invention are basically all types of wood commonly used for veneer production, in particular those which can absorb at least 30%, in particular at least 50%, of their dry weight of water, and particularly preferably those which fall into the saturability classes 1 and 2 according to DIN EN 350-2.
- woods of coniferous trees such as pine (Pinus spp.), Spruce, cedar, stone pine, Douglas fir, larch, pine, fir, coastal fir, and woods of deciduous trees, eg.
- urea compounds H and their reaction products and precondensates are commercially available, for example under the trade names Fixapret® CP and Fixapret® ECO from BASF Aktiengesellschaft.
- the urea compounds contained in the aqueous compositions are low molecular weight compounds or oligomers of low molecular weight, which are usually completely dissolved in water.
- the molecular weight of the urea compounds is usually below 400 daltons. These compounds are believed to allow the compounds to penetrate the cell walls of the wood and, upon hardening, improve the mechanical stability of the walls and reduce their swelling caused by water.
- MDMDHEU are reaction products of
- the curable aqueous compositions may contain, in addition to the urea compounds H or their reaction products or precondensates (component a)), one or more of the abovementioned alcohols, C 1 -C 6 -alkyl, C 2 -C 6 -polyamines, oligoethylene glycols or mixtures of these alcohols contained (component c)).
- suitable C 1-6 -alkanols are methanol, ethanol, n-propanol, isopropanol, n-butanol and n-pentanol, preference being given to methanol.
- Suitable polyols are ethylene glycol, diethylene glycol, 1, 2 and 1, 3-propylene glycol, 1, 2, 1, 3, and 1, 4-butylene glycol, glycerol.
- Suitable oligoethylene glycols are especially those of the formula
- n is from 2 to 20, of which diethylene glycol and triethylene glycol are preferred.
- metal salts suitable as catalysts K are in particular magnesium chloride, magnesium sulfate, zinc chloride, lithium chloride, lithium bromide, aluminum chloride, aluminum sulfate, zinc nitrate and sodium tetrafluoroborate.
- catalysts K are water-soluble organic carboxylic acids such as maleic acid, formic acid, citric acid, tartaric acid and oxalic acid, furthermore benzenesulfonic acids such as p-toluenesulfonic acid, but also inorganic acids such as hydrochloric acid, sulfuric acid, boric acid or mixtures thereof.
- water-soluble organic carboxylic acids such as maleic acid, formic acid, citric acid, tartaric acid and oxalic acid
- benzenesulfonic acids such as p-toluenesulfonic acid
- inorganic acids such as hydrochloric acid, sulfuric acid, boric acid or mixtures thereof.
- the aqueous composition used to impregnate the wood fuming may contain some or all of the binder components (sizing ingredients) of the sizing agent used in step ii) for sizing the veneer, as further explained below.
- the composition used in step i) contains at least 50%, in particular at least 80%, and especially the total amount of glue components contained in the sizing composition, based on the total amount of sizing ingredients used in the process.
- glue components and “binder components” are used interchangeably herein and refer to the non-volatile constituents which effect the bonding of the veneer with the carrier, including the excipients and preservatives optionally present in the sizing agent.
- the concentration of binder in the aqueous composition is usually in the range of 0.5 to 25 wt .-%, often in the range of 1 to 20 wt .-% and in particular in the range of 5 to 15 wt .-%, based on the total weight of the aqueous composition. It is assumed that the binder components, unlike the crosslinkable urea compounds, the catalyst K and the optionally present alcohols of component c) are not absorbed or only to a small extent by the cell walls of the Hoiz, but largely on the surface of Holzfumiers remain and therefore in the subsequent bonding process as a sizing agent available.
- the impregnation can usually take place in itself, z.
- immersion by use of vacuum optionally in combination with pressure or by conventional application methods such as brushing, spraying and the like.
- the veneers can be pre-pressed by means of press rolls, so-called calenders, which are present in the aqueous impregnating composition.
- calenders which are present in the aqueous impregnating composition.
- the result of relaxing in the wood The resulting vacuum then leads to an accelerated absorption of aqueous impregnating composition.
- the impregnation can also be achieved by using reduced pressure, which may optionally be followed by an elevated pressure phase.
- veneer which generally has a humidity in the range of 1% to 100%, under reduced pressure, which is often in the range of 10 to 500 mbar and in particular in the range of 40 to 100 mbar, in contact with the aqueous composition brought, for. B. by immersion in the curable aqueous composition.
- the time period is usually in the range of 1 minute to 1 hour.
- a phase at elevated pressure, z. B. in the range of 1 to 20 bar, especially in the 5 to 15 bar and especially 10 to 12 bar, to.
- the duration of this phase is usually in the range of 1 min to 12 h.
- the impregnation can be carried out by conventional methods for applying liquids to surfaces, for. B. by spraying or rolling or brushing.
- the application is usually carried out at temperatures in the range of 15 to 50 ° C.
- the concentration of curable constituents in the aqueous composition, the amount applied, the temperature and the duration of the spraying allow the amount of curable constituents taken up by the veneer to be determined can be controlled.
- the amount of curable components actually absorbed results directly from the amount of aqueous composition applied.
- the spraying can be carried out in usually all suitable for the spraying of sheet-like devices devices, for. B. by means of nozzle arrangements and the like.
- brushing or rolling the desired amount of aqueous composition is applied to the veneer using rollers or brushes.
- the veneer is first compressed, then it is brought into contact with the aqueous curable composition.
- the compression can be carried out in a simple manner by means of pressing or in particular by means of press rolls, so-called calenders, which are in the aqueous impregnating composition.
- Compress veneer in a chamber with a conventional, flat press, then flood the chamber with the impregnation solution and then reduce the pressure in the flooded state.
- the compression pressure applied during compression is typically in the range of 1 to 1000 N / cm 2 , often in the range of 10 to 800 N / cm 2 , in particular in the range of 50 to 500 N / cm 2 .
- the vacuum occurring in the wood when relaxing then leads to an accelerated absorption of aqueous impregnating composition.
- the curable constituents of the aqueous impregnating composition are in substantially uncrosslinked form during the gluing.
- the gluing step ii) therefore takes place immediately after the impregnation step i) or simultaneously with it.
- a drying step may be carried out under conditions in which curing of the constituents contained in the aqueous composition does not take place or only to a very limited extent.
- a temperature of 100 0 C, in particular 80 0 C is not exceeded during such a drying step. If drying is carried out, it will be preferable to fix the veneer in a way, e.g. B. in a press to counteract deformation of the veneer.
- a moisture content of at least 5%, in particular at least 10%, based on the dry mass of the veneer does not fall below in order to prevent premature curing of the aqueous constituents of the composition and to facilitate the further processing.
- the gluing step ii) takes place immediately after the impregnation step i) or particularly preferably simultaneously with it.
- the impregnating solution will already contain the main amount or, in particular, the total amount of binder components of the sizing agent, and the sizing will take place in the manner described for the impregnation.
- the method used in a conventional manner depends on the veneer material to be produced. Methods for this are known to the expert, for. From HH Nimz et al. "Wood - Wood-based Products" 2.2 Laminate Bonding, especially 2.2.2.5 Production of Veneer Plywood in Ullmann's Encyclopaedia of Industrial Chemistry, 5th Edition on CD-ROM, Wiley-VCH (see also F. Kollmann (ed.) Veneers, storage wood and Tischlerplatten, Springer publishing house, Berlin 1962). Examples of gluing methods are the application of the liquid sizing composition by means of rollers, z. B. by 2- or 4-roller assemblies, the infusion of the liquid sizing composition, for. Example by means of a gluing curtain or the melting of the glue composition.
- Preferred sizing agents are those based on the thermally curable binders mentioned in group i) and mixtures thereof with film-forming polymers of group ii).
- Preferred binders are aminoplast resins, phenolic resins, isocyanate resins and polyvinyl acetate.
- aminoplast resins are formaldehyde condensates of urea (urea-formaldehyde condensates) and of melamine (melamine-formaldehyde condensates). They are available as aqueous solutions or powders under the name voltages Kaurit ® and Kauramin ® (Prod. BASF) and urea-containing and / or melamine-formaldehyde precondensates.
- Typical phenolic resins are phenol-formaldehyde condensates, phenol-resorcinol-formaldehyde condensates and the like. Also suitable are mixed condensates of aminoplast resins and phenolic resins.
- a transition of soluble and meltable precondensates occurs in infusible and insoluble products.
- curing it is known that continuous cross-linking of the precondensates occurs, which is generally accelerated by hardeners.
- the hardener known to those skilled in the art for urea, phenol and / or melamine-formaldehyde resins can be used, such as acid-reacting and / or acid-releasing compounds, for.
- ammonium or amine salts for example, ammonium or amine salts.
- the proportion of hardener in a glue resin liquor is from 1 to 5% by weight, based on the liquid resin content.
- the times required for bonding depend on the nature of the material to be produced and are typically in the range of 1 minute to 60 minutes. per cm of veneer material thickness, often in the range of 2 min. up to 30 min. per cm veneer material thickness and in particular in the range of 5 to 15 min per cm veneer material thickness.
- the expert understands wood panels with a decorative Deck L. Tread layer of wood veneer lamellae and at least one carrier or base layer, which is usually made of a wood material, for. B. a layer of sawn and optionally glued together wooden rods, plywood, chipboard, including OSB, fiberboard, z. As softboard, MDF or HDF, and the like.
- the Fertigparkettpaneele may also include intermediate layers, which are also typically made of wood or wood-based materials, as well as layers that cause impact sound insulation, as described in EP1364774.
- such panels can also constructive devices that facilitate laying the panels have, for. B. tongue and groove or notches.
- the impregnated lamellae of the cover layer were fixed in stacks so that warping was impossible.
- the slats were dried for about 4 days at a temperature of 50 0 C.
- the residual moisture was then at 20%.
- the lamellae thus produced were glued on one side with an aqueous MeI- amine resin preparation in an amount of 200 g / m 2 , based on the non-aqueous portion of the preparation.
- the impregnated veneers were glued on both sides with an aqueous melamine resin preparation in an amount of 200 g / m 2 , based on the non-aqueous portion of the preparation.
- each 5 veneers were glued to a multiplex board.
- the veneers were placed in a heated press.
- the press was heated to 140 ° C. and the veneers were pressed at 0.8 N / mm 2 for about 15 minutes.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Finished Plywoods (AREA)
- Laminated Bodies (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060707410 EP1858678B1 (de) | 2005-03-04 | 2006-03-03 | Verfahren zur herstellung von holzwerkstoffen |
US11/817,284 US7976668B2 (en) | 2005-03-04 | 2006-03-03 | Method for producing wood-base materials |
JP2007557442A JP5150268B2 (ja) | 2005-03-04 | 2006-03-03 | 木材材料を製造する方法 |
AU2006219949A AU2006219949B2 (en) | 2005-03-04 | 2006-03-03 | Method for producing wood-base materials |
BRPI0609033A BRPI0609033A2 (pt) | 2005-03-04 | 2006-03-03 | processo para a produção de um material à base de madeira, e, material à base de madeira |
CN2006800071602A CN101247931B (zh) | 2005-03-04 | 2006-03-03 | 生产木基材料的方法 |
CA 2599209 CA2599209A1 (en) | 2005-03-04 | 2006-03-03 | Method for producing wood-base materials |
MX2007010430A MX2007010430A (es) | 2005-03-04 | 2006-03-03 | Metodo para producir materiales a base de madera. |
AT06707410T ATE483563T1 (de) | 2005-03-04 | 2006-03-03 | Verfahren zur herstellung von holzwerkstoffen |
DE200650008017 DE502006008017D1 (de) | 2005-03-04 | 2006-03-03 | Verfahren zur herstellung von holzwerkstoffen |
NO20074255A NO20074255L (no) | 2005-03-04 | 2007-08-21 | Fremgangsmate for fremstilling av trebaserte materialer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005010041.4 | 2005-03-04 | ||
DE102005010041A DE102005010041A1 (de) | 2005-03-04 | 2005-03-04 | Verfahren zur Herstellung von Holzwerkstoffen |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006092331A2 true WO2006092331A2 (de) | 2006-09-08 |
WO2006092331A3 WO2006092331A3 (de) | 2008-03-06 |
Family
ID=36680343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/001980 WO2006092331A2 (de) | 2005-03-04 | 2006-03-03 | Verfahren zur herstellung von holzwerkstoffen |
Country Status (16)
Country | Link |
---|---|
US (1) | US7976668B2 (de) |
EP (1) | EP1858678B1 (de) |
JP (1) | JP5150268B2 (de) |
KR (1) | KR20080002807A (de) |
CN (1) | CN101247931B (de) |
AT (1) | ATE483563T1 (de) |
AU (1) | AU2006219949B2 (de) |
BR (1) | BRPI0609033A2 (de) |
CA (1) | CA2599209A1 (de) |
DE (2) | DE102005010041A1 (de) |
ES (1) | ES2354084T3 (de) |
MX (1) | MX2007010430A (de) |
NO (1) | NO20074255L (de) |
RU (1) | RU2007136552A (de) |
WO (1) | WO2006092331A2 (de) |
ZA (1) | ZA200708404B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7939177B2 (en) | 2005-10-04 | 2011-05-10 | Basf Aktiengesellschaft | Lignocelluosic material which is low in formaldehyde and method for the production thereof |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2902685B1 (fr) * | 2006-06-21 | 2010-02-26 | Michel Faivre | Procede d'etancheification d'un element de menuiserie en bois, et element ainsi obtenu |
FI124047B (fi) * | 2007-06-19 | 2014-02-14 | Stora Enso Oyj | Lämpömodifioidun puun pintakäsittely |
DE102010009309A1 (de) | 2009-02-20 | 2011-02-03 | Technische Universität Dresden | Verfahren zur dreidimensionalen Umformung und Formfixierung von Furnieren |
US8414996B2 (en) | 2009-11-06 | 2013-04-09 | Green Rev LLC | Sustainable simulated commodity tropical hardwood panel |
PL2620475T3 (pl) * | 2012-01-26 | 2015-10-30 | SWISS KRONO Tec AG | Kompozycje klejowe i ich stosowanie |
US9212290B2 (en) | 2012-01-27 | 2015-12-15 | Celanese Acetate Llc | Substituted cellulose acetates and uses thereof |
US9167830B2 (en) | 2012-01-27 | 2015-10-27 | Celanese Acetate Llc | Substituted cellulose acetates and uses thereof |
US9023757B2 (en) | 2012-01-27 | 2015-05-05 | Celanese Acetate Llc | Substituted cellulose acetates and uses thereof |
WO2014046681A1 (en) | 2012-09-24 | 2014-03-27 | Celanese Acetate Llc | Engineered wood produced with substituted cellulose ester adhesives and methods relating thereto |
US9138967B2 (en) * | 2012-09-24 | 2015-09-22 | Celanese Acetate Llc | Wood laminate articles comprising substituted cellulose ester adhesives and methods relating thereto |
CA2993303A1 (en) * | 2015-07-23 | 2017-01-26 | Michael T. Yang | Plywood article |
CN108515595A (zh) * | 2018-04-02 | 2018-09-11 | 南通东方亚振家具有限公司 | 一种脲醛树脂浸渍改性木材的方法 |
JP2019217696A (ja) * | 2018-06-20 | 2019-12-26 | 株式会社ダイセル | 改質された木質シート、その製造方法、及び改質剤 |
CN109397441A (zh) * | 2018-11-08 | 2019-03-01 | 北京林业大学 | 一种芦编制品用芦苇秸秆增韧改性处理工艺 |
CN112011299A (zh) * | 2020-09-07 | 2020-12-01 | 西南林业大学 | 一种2d树脂木材胶黏剂及其制备方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2398649A (en) * | 1943-03-10 | 1946-04-16 | Du Pont | Treatment of wood |
GB600961A (en) * | 1944-09-20 | 1948-04-23 | Du Pont | Improvements in or relating to the impregnation of wood with urea-formaldehyde resins |
US2452200A (en) * | 1945-04-16 | 1948-10-26 | Du Pont | Treatment of porous material |
US3493417A (en) * | 1965-06-08 | 1970-02-03 | Stockholms Superfosfat Fab Ab | Composition for treatment of wood products comprising a polyol compound,a polymerizable amine formaldehyde resin and a curing catalyst |
DE3432135A1 (de) * | 1984-08-31 | 1986-03-13 | Blomberger Holzindustrie B. Hausmann GmbH & Co KG, 4933 Blomberg | Impraegnierte lagenholzplatte |
WO2004033171A1 (de) * | 2002-10-04 | 2004-04-22 | Basf Aktiengesellschaft | Verfahren zur verbesserung der oberflächenhärte eines holzkörpers mit einer wässrigen lösung eines imprägniermittels |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5130577B2 (de) * | 1972-08-05 | 1976-09-01 | ||
US4396391B2 (en) * | 1982-06-30 | 1993-03-16 | Treating cellulose textile fabrics with dimenthylol dihydroyethyleneuree-polyol | |
BE1011466A6 (nl) | 1997-09-22 | 1999-10-05 | Unilin Beheer Bv | Vloerdeel, werkwijze voor het vervaardigen van zulk vloerdeel en inrichting hierbij toegepast. |
DE19925865C2 (de) | 1999-06-07 | 2002-03-07 | Hamberger Industriewerke Gmbh | Parkettlamelle, sowie hieraus hergestelltes Parkettelement und Verfahren zur Herstellung eines Fussbodenpaneels |
-
2005
- 2005-03-04 DE DE102005010041A patent/DE102005010041A1/de not_active Withdrawn
-
2006
- 2006-03-03 BR BRPI0609033A patent/BRPI0609033A2/pt not_active IP Right Cessation
- 2006-03-03 EP EP20060707410 patent/EP1858678B1/de not_active Not-in-force
- 2006-03-03 CA CA 2599209 patent/CA2599209A1/en not_active Abandoned
- 2006-03-03 WO PCT/EP2006/001980 patent/WO2006092331A2/de active Application Filing
- 2006-03-03 JP JP2007557442A patent/JP5150268B2/ja not_active Expired - Fee Related
- 2006-03-03 DE DE200650008017 patent/DE502006008017D1/de active Active
- 2006-03-03 MX MX2007010430A patent/MX2007010430A/es not_active Application Discontinuation
- 2006-03-03 KR KR1020077022689A patent/KR20080002807A/ko not_active Application Discontinuation
- 2006-03-03 ES ES06707410T patent/ES2354084T3/es active Active
- 2006-03-03 RU RU2007136552/04A patent/RU2007136552A/ru not_active Application Discontinuation
- 2006-03-03 AT AT06707410T patent/ATE483563T1/de active
- 2006-03-03 AU AU2006219949A patent/AU2006219949B2/en not_active Ceased
- 2006-03-03 CN CN2006800071602A patent/CN101247931B/zh not_active Expired - Fee Related
- 2006-03-03 US US11/817,284 patent/US7976668B2/en not_active Expired - Fee Related
-
2007
- 2007-08-21 NO NO20074255A patent/NO20074255L/no not_active Application Discontinuation
- 2007-10-02 ZA ZA200708404A patent/ZA200708404B/xx unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2398649A (en) * | 1943-03-10 | 1946-04-16 | Du Pont | Treatment of wood |
GB600961A (en) * | 1944-09-20 | 1948-04-23 | Du Pont | Improvements in or relating to the impregnation of wood with urea-formaldehyde resins |
US2452200A (en) * | 1945-04-16 | 1948-10-26 | Du Pont | Treatment of porous material |
US3493417A (en) * | 1965-06-08 | 1970-02-03 | Stockholms Superfosfat Fab Ab | Composition for treatment of wood products comprising a polyol compound,a polymerizable amine formaldehyde resin and a curing catalyst |
DE3432135A1 (de) * | 1984-08-31 | 1986-03-13 | Blomberger Holzindustrie B. Hausmann GmbH & Co KG, 4933 Blomberg | Impraegnierte lagenholzplatte |
WO2004033171A1 (de) * | 2002-10-04 | 2004-04-22 | Basf Aktiengesellschaft | Verfahren zur verbesserung der oberflächenhärte eines holzkörpers mit einer wässrigen lösung eines imprägniermittels |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7939177B2 (en) | 2005-10-04 | 2011-05-10 | Basf Aktiengesellschaft | Lignocelluosic material which is low in formaldehyde and method for the production thereof |
Also Published As
Publication number | Publication date |
---|---|
EP1858678A2 (de) | 2007-11-28 |
CN101247931A (zh) | 2008-08-20 |
AU2006219949A1 (en) | 2006-09-08 |
BRPI0609033A2 (pt) | 2016-11-29 |
AU2006219949B2 (en) | 2011-06-02 |
JP5150268B2 (ja) | 2013-02-20 |
ATE483563T1 (de) | 2010-10-15 |
WO2006092331A3 (de) | 2008-03-06 |
ES2354084T3 (es) | 2011-03-09 |
MX2007010430A (es) | 2007-09-27 |
CN101247931B (zh) | 2010-10-13 |
CA2599209A1 (en) | 2006-09-08 |
JP2008531344A (ja) | 2008-08-14 |
KR20080002807A (ko) | 2008-01-04 |
US7976668B2 (en) | 2011-07-12 |
EP1858678B1 (de) | 2010-10-06 |
US20080156435A1 (en) | 2008-07-03 |
RU2007136552A (ru) | 2009-04-10 |
DE102005010041A1 (de) | 2006-09-07 |
NO20074255L (no) | 2007-11-30 |
ZA200708404B (en) | 2009-11-25 |
DE502006008017D1 (de) | 2010-11-18 |
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