WO2005097443A2 - Procede d'impregnation de bois massif - Google Patents

Procede d'impregnation de bois massif Download PDF

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Publication number
WO2005097443A2
WO2005097443A2 PCT/EP2005/051540 EP2005051540W WO2005097443A2 WO 2005097443 A2 WO2005097443 A2 WO 2005097443A2 EP 2005051540 W EP2005051540 W EP 2005051540W WO 2005097443 A2 WO2005097443 A2 WO 2005097443A2
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WO
WIPO (PCT)
Prior art keywords
wood
paraffin
wax
pressure
mixture
Prior art date
Application number
PCT/EP2005/051540
Other languages
German (de)
English (en)
Other versions
WO2005097443A3 (fr
Inventor
Thorsten Frick
Thomas Haas
Michael Matthäi
Original Assignee
Sasol Wax Gmbh
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 Sasol Wax Gmbh filed Critical Sasol Wax Gmbh
Publication of WO2005097443A2 publication Critical patent/WO2005097443A2/fr
Publication of WO2005097443A3 publication Critical patent/WO2005097443A3/fr

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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
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/36—Aliphatic compounds
    • 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
    • B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
    • 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
    • B27K5/001—Heating

Definitions

  • the invention relates to a method for impregnating wood, in particular solid wood, under pressure with an impregnating agent which is at least partially liquid when exposed to pressure, the impregnating agent comprising wax and / or paraffin.
  • the main components of the impregnating agent are salts such as boron compounds, hydrogen fluorides and silicone fluorides.
  • Further solvent-containing impregnating agents which contain organic fungicides and insecticides in solvents, chromates and alkali fluorides, chromium fluorine and boron compounds. Chromium-free salts such as boric acid and copper compounds, various other salts and finally pure distillates from coal tar oil are also known.
  • a pressure impregnation process based on an aqueous dispersion is known from DE 10036566 A1, in which paraffins or waxes are also used to a certain extent, up to 25% of the impregnation concentrate.
  • the paraffin or wax can only penetrate the wood to a small extent. This is also not necessary for the known method, since the paraf in or wax only during further processing of the wood, cutting or the like, should increase the surface smoothness. Subsequent drying is also necessary.
  • An impregnation concentrate is diluted with a ratio of one part concentrate to three parts water.
  • the proportion of paraffins or waxes in the impregnating agent is correspondingly below 10%. Use without dilution is also addressed, but is not preferred.
  • the object of the invention is to provide a method for impregnating wood, in particular solid wood, which, while maintaining the strength and elasticity of the wood, provides high resistance to weathering and aging.
  • the basic constituent here means that the paraffin or wax, in the form of a single, specific paraffin or wax, does not have a proportion of 80% or more in the impregnating agent, for example in the sense of a mixture, as mentioned above in the first embodiment. Up to 100%.
  • paraffin or wax fraction if possible, is above 80% of the total impregnating agent when the impregnation is carried out. Here also up to 100%.
  • the actual impregnation can be carried out at relatively high temperatures, in any case above 50 ° C, up to 80, 90 or even 100 ° C. Since wood drying is usually carried out at 50 to 100 ° C, essential parts of the paraffin are then liquefied again and can, as long as there is no sufficient "sealing effect" due to higher melting temperatures, even sweat out, that is to say they are lost altogether. Since the evaporating water also clears cell spaces into which the remaining paraffin then penetrates, the degree of impregnation can drop significantly.
  • a paraffin that can be used in the impregnation processes described here is, for example, paraffin (FT paraffin) obtained in a Fischer-Tropsch synthesis.
  • paraffins are described, for example, in the literature reference A. Kühnle in Fette.Seifen.Anstrichstoff, 84th year, page 154 ff. They are long-chain, little branched alkanes, which are practically free of naphthenes and aromatics as well as oxygen and sulfur compounds.
  • the C chain lengths of FT paraffins range from about C20 to C105.
  • the solidification point is usually between 70 and 105 ° C.
  • Synthetic paraffin based on polyethylene can also be used. One also speaks of polyethylene waxes.
  • Micro wax can also be used.
  • the microcrystalline paraffins which are also called microwaxes, are a mixture of saturated hydrocarbons that are solid at room temperature and have a chain length distribution of C25 to C80.
  • the microcrystalline paraffins contain frequently branched isoalkanes and alkyl-substituted cycloalkanes (naphthenes), the latter, however, being typical of the microcrystalline paraffins obtained from petroleum. Furthermore, even if in a small amount, they can contain fractions of aromatics.
  • the content of iso-alkanes is between 40 and 70%, determined according to the EWF standard Test Method for Analysis of Hydrocarbonwax by Gas Chromatography. The quantitative dominance of the iso-alkanes results in the microcrystalline structure.
  • the mixture can also contain paraffinic oil, also known as white oil.
  • paraffinic oil also known as white oil.
  • viscous paraffin (Paraffinum Liquidum), which is an oily liquid and has a viscosity of 110 to 230 mPa.s.
  • the thin liquid paraffin (Paraffinum per Liquidum) has a viscosity of 25 to 80 mPa.s. on.
  • paraffinic oil can also be used as the sole or primary component of the impregnating agent. It may be advisable to add a thickening agent, as mentioned below.
  • the synthetic FT paraffin is preferably used in qualities that have a solidification point of 78 to 83 ° C.
  • the viscosity, determined according to DUST 51 562-1, at 100 ° C, is typically 9.4 mm 2 / s, for example.
  • the usual paraffin obtained from Gatsch i.e. paraffin obtained from petroleum residues, for example by sweating or fractional crystallization, is preferably used in qualities that have solidification points of 54 to 56 ° C.
  • the viscosity, determined as above, is also 100 ° C typically around 4mm 2 / s.
  • Triglycerides can also be used.
  • a typical mixture of petroleum-derived paraffin with triglycerides, micro wax and paraffinic oil has solidification points in the range between 38 and 43 ° C. and a viscosity, likewise determined as stated above, between 4.5 and 5.5 mm 2 / s.
  • a typical mixture of petroleum-derived paraf in with polyethylene wax, EVA and copolymers has a melting point in the range from 60 to 62 ° C. and a viscosity, as defined above, from 12 to 15 mm 2 / s.
  • the mixtures used here consist of a basic component and optionally one or more additives.
  • the basic component which is usually contained in a single mixture at 50 to 100%, preferably 80 to 95%
  • Functionalized here means that they are present as an anoxidate or carboxylate with a solidification point of 50 to 115 ° C., preferably 70 to 98 ° C.
  • additives which may be 0 to 50%, preferably 0 to 20%, in a mixture.
  • additives which, as a rule, cannot be a basic component, are polymers such as polyethylenes, polypropylenes, polyisopropylenes, polyisobutylenes and polyolefins in general. These polymers are preferably used with a softening point of 60 to 150 ° C., preferably 80 to 120 ° C. Additives can also be copolymers, e.g. B. ethylene-vinyl acetate copolymers, in the short name EVA. These copolymers are also preferably used with a melting point of 70 to 110 ° C, more preferably 80 to 105 ° C. Montan wax can also be used as an additive, also raw or refined.
  • Hydrocarbon resins can also be used as an additive, preferably with a softening point of 95 to 140 ° C., more preferably with a softening point of 95 to 105 ° C.
  • triglycerides and fatty acids in the C chain length from C14 to C22, preferably C18 to C22.
  • paraffinic oils with an Freezing point below 50 ° C can be used. Insofar as there is a solidification point in the present context, it is preferably a freezing point as determined according to DIN ISO 2207.
  • a thickener can also be used as an additive or additive. This can make it possible to use a paraffin or wax that is liquid per se at ambient temperatures or use temperatures of the wood impregnated in this way, but which nevertheless does not run out due to the proportion of thickener. The addition of such a thickener can also be recommended for a mixture. Kraton G can be used as a thickener.
  • the additives mentioned are preferably selected with a softening point which is at least 15 K higher than that of the basic component. In any case, if the additives are those which, like paraffin, are completely inert or non-polar. However, when using compounds with functional groups, such as fats, resins, montan waxes etc. (functional groups in the form of OH or carboxyl groups), the difference mentioned in the softening point is not absolutely necessary. Because of the functional groups mentioned, these additives often interact with the cell walls and can also bring about a desired sealing due to this interaction.
  • the additives mentioned with a higher softening point and / or functionalization compared to a typical paraffin, as described above as the basic component penetrate into the wood with a delay, thus favoring the splitting of the mixture into the individual components, as already mentioned.
  • the pressure impregnation is carried out between pressures between 0.1 and 15 bar, preferably in the range of approximately 1 to 12 bar. All intermediate values are hereby also included in the disclosure.
  • the pressure impregnation is preferably carried out over a period of several hours, for example 2 to 3 hours. Before and / or after the pressure impregnation, the wood can also be subjected to a vacuum.
  • a so-called alternating printing process can also be carried out.
  • vacuum (vacuum) and pressure phases change in a short time about several hundred times over a long period. For example, 400 times in 22 hours.
  • the process is preferably carried out in a pressure vessel with full impregnation.
  • a wood treated according to the process described here in particular solid wood, is characterized by excellent durability and hydrophobicity. For example, this also has the effect that due to their material, corrodible nails that are hammered into this wood do not corrode.
  • the process described here is a basically biocide-free and immediately effective hydrophobizing wood protection, whereby the wood preservative does not bleed out on its melting behavior and is inert to chemical, physical and biogenic influences while maintaining the natural wood structure, wood properties, wood color and wood surface.
  • Other properties of the wood, such as the load-bearing capacity, are even permanently improved, since a wax matrix can form in the cell structure of the wood after impregnation.
  • the wood can now be completely impregnated over the entire cross-section, or only partially. This ultimately depends on the application.
  • the penetration depth of the paraffin or wax is different in the direction of the grain or perpendicular to it. In the direction of the grain, with typical impregnation, unless a complete impregnation is to be achieved anyway, an penetration reached depth of one or a few centimeters, transverse to this of one or a few millimeters.
  • the paraffin / wax impregnation also reduces the amount of water in the wood, which has the direct consequence that the living conditions for wood-damaging organisms are deteriorated or no longer exist. If the impregnating agent used contains a certain amount of water, water that has penetrated into the wood can also be removed to a required extent by subsequent drying, if necessary at temperatures at which the impregnating agent used is liquid overall. There is no need for biocides. The process described here can therefore be carried out without biocides, but leads to results that are equivalent to the conventional biocide impregnation of wood.
  • woods are suitable for the application of the method described here.
  • Poplar, pine, linden, cedar and general softwood are mentioned, but also hardwood such as ash.
  • woods such as beech, maple and cherry.
  • Woods for parquet floors, outdoor furniture, windows and external doors, wooden facades, balconies, timber, in particular for load-bearing parts, fences, noise barriers, gardening and landscaping, wood in contact with the earth, wood for outdoor playgrounds are only examples.
  • Areas of application are also garden wood (furniture, houses, play equipment, terraces, fences, gates), scaffolding, roof structures, roof substructures, wooden houses, masts, wooden packaging, facades, noise barriers, windows and doors, etc. Further areas of application open up in which wood protection has so far been dispensed with due to a lack of air exchange after installation. For example, for wooden installations in the interior of apartments, basements and stores. For example stairs, roof trusses and floor coverings. Areas of application also exist in areas in which wood protection has so far been dispensed with for other reasons, for example optical reasons, or where only a superficial method has been used. This applies to fences, walls, flooring, furniture, stairs, wooden houses, roofs and facades both indoors and outdoors.
  • the invention also relates to wood treated with paraffin or wax as wood preservative, in particular solid wood.
  • the invention proposes that a mixture of paraffins or waxes is contained in the wood, paraffins or waxes of different carbon chain lengths or molecular sizes being contained in layers over the depth of the wood and further one closer to the outer surface of the wood lying layer has higher C chain lengths or larger molecules than a downward layer or other layer in the wood given below.
  • the invention is also of importance if no mixture, but only a single type of paraffin, as described above, is used in the process or is present in the wood in the manner specified.
  • the paraffin or wax uptake of the wood when carrying out the method according to the invention or in a wooden object as described can, depending on the type of wood, be different. It is preferably in the range from 5 to 500 kg / m 3 , more preferably in the range from 25 to 450 kg / m 3 , in particular in the range from 50 to 350 kg / m 3 .
  • the proportion of paraffin or wax in the impregnating agent, based on a mixture of paraffins or waxes, here based on the total paraffin or wax proportion, can be 50% or more, up to 100%.
  • Wood treated with the process described here or wood with the penetrated paraffin as described is also characterized by a low MRI value. This describes a low risk from moisture-induced, biological degradation and is a measure of the hydrophobizing effect of the impregnating agent. Specifically, it is a matter of determining the slope of the wood moisture curve in the point 25% wood moisture. If the samples do not even reach the 25% mark, the last four measurement points are used by linear interpolation to determine the absorption gradient. The results are such that the correspondingly impregnated samples from pine wood have a MRI value that is 74 times lower than that of an untreated corresponding wood sample. For spruce wood there is a factor of 27, by which the value is lower. In the case of woods such as oak, there was still a difference of 4, 7 and 2.5% in spruce.
  • the impregnation agent consists of 100% Fischer-Tropsch wax, especially a Paraflint (trade name) C80. This is a Fischer-Tropsch wax with a solidification point (EP), determined according to DIN ISO 2207, of 80 ° C. 2.
  • the impregnation agent consists of 100% paraffin (customary paraffin obtained in particular from Gatsch). Specifically from Sasolwax 5403. This paraffin has an EP of 54 ° C.
  • the impregnation agent consists of a mixture of 85% Fischer-Tropsch wax, C80, as in Example 1, and 15% polyethylene.
  • the latter is one with an EP of 112 ° C. While the Fischer-Tropsch wax mainly penetrates the wood (deep), the polyethylene component serves as a coating, that is, to form a protective coating. It usually does not form a coherent closed layer, but rather has a scale-like structure, at least untreated.
  • the impregnation agent consists of a mixture of 15% mineral oil, 20% vegetable oil (a triglyceride, such as soybean oil), 5% micro wax and 60% paraffin (raw). While the mineral oil and vegetable oil are liquid even at ambient temperature, the micro wax has an EP of 70 ° C, the paraffin has an EP of 56 ° C. The whole mixture has an EP of about 43 - 45 ° C.
  • the micro wax essentially settles from the outside or in the layers close to the outside, while the other components penetrate the wood, possibly at different depths, which also depends on the exposure time.
  • the impregnation agent consists of a mixture of 95% paraffin with an EP of 61 ° C, 3% EVA (ethylene vinyl acetate) and 2% PE wax.
  • the PE wax which takes on the coating function here, has an EP of 98 ° C.
  • the EVA serves primarily as a mediator with regard to the adhesion between paraffin and wood. It can be such an EVA which, for example, has an EP of 75 ° C., although this component is primarily not classified according to EP. 6.
  • the impregnation agent consists of a mixture of 80% paraffin, 15% hydrocarbon resin and 5% EVA.
  • the paraffin is one with an EP in the previously specified range, here, for example, of 58 ° C.
  • the hydrocarbon resin has an EP of 100 ° C.
  • the impregnation agent consists of 80% paraffin and 20% montan wax. While the paraffin here also has an EP corresponding to the ones specified above, specifically, for example, an EP of 58 ° C., the montan wax has an EP in the range of 80 ° C., specifically here 81 ° C. Montan wax has a few reactive groups and therefore has a function within the mixture between that of the FT paraffin, for example, and that of the resins. Accordingly, it also acts as an adhesion improver, but due to its molecular size also causes a coating, ie it preferably settles close to the outside or outside.
  • the impregnating agent consists of a mixture of 60% micro wax, with an EP between 60 and 85 ° C, specifically for example 68 ° C, 10% Fischer-Tropsch wax, with an EP between 75 and 115 ° C, specifically here for example 98 ° C and 20% oxidized paraffin, with an EP between 52 and 68 ° C, specifically here for example 62 ° C.
  • the impregnation agent consists of 80% oxidized paraffin, with the above-mentioned EP and 20% petrolatum. The latter has an EP of 60 ° C up to 72 ° C, specifically here, for example, 68 ° C. 10.
  • the impregnation agent consists of 80% polyolefin, for example a polyethylene, here especially a Clariant wax PE 520, and 20% fatty acid.
  • the impregnation agent consists of 80% polyethylene wax, here for example Clariant wax PE 720, with an EP of 90 - 100 ° C and 20% paraffin.
  • the paraffin here can be, for example, one with an EP of 58 ° C
  • the impregnating agent consists of a mixture of 50% paraffin, with one of the melting points given above, 30% polyolefin and 20% stearin.
  • polyolefin reference is also made to the above statements.
  • stearin it can be one that has, for example, an EP of 60 ° C.

Abstract

L'invention concerne un procédé d'imprégnation de bois sous pression au moyen d'un agent d'imprégnation au moins partiellement liquide sous l'effet de la pression, notamment la paraffine. Selon l'invention, pour que le bois acquière une résistance élevée aux intempéries et au vieillissement tout en conservant sa solidité et son élasticité, l'agent d'imprégnation utilisé est un mélange contenant moins de 5 % d'eau à base de paraffines et/ou de cires présentant différentes longueurs de chaîne ou tailles de molécule, ces paraffines ou ces cires formant le mélange étant sélectionnées de telle sorte qu'elles soient au moins partiellement solides à température ambiante et liquides au moins partiellement uniquement à des températures sensiblement supérieures, dans tous les cas au-dessus de 50 °C. Dans une variante, l'agent d'imprégnation utilisé est une masse qui, lors de l'imprégnation, la température étant supérieure ou égale à 50 °C, se présente totalement sous forme liquide, en tout cas en ce qui concerne son composant de base formé par la paraffine ou la cire, cette paraffine ou cette cire étant sélectionnée de façon à être solide à une température inférieure à 50 °C.
PCT/EP2005/051540 2004-04-08 2005-04-07 Procede d'impregnation de bois massif WO2005097443A2 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102004017957 2004-04-08
DE102004017957.3 2004-04-08
DE102004029878 2004-06-19
DE102004029878.5 2004-06-19
DE102004041032.1 2004-08-25
DE102004041032A DE102004041032A1 (de) 2004-04-08 2004-08-25 Verfahren zum Imprägnieren von Massivholz

Publications (2)

Publication Number Publication Date
WO2005097443A2 true WO2005097443A2 (fr) 2005-10-20
WO2005097443A3 WO2005097443A3 (fr) 2006-04-13

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Application Number Title Priority Date Filing Date
PCT/EP2005/051540 WO2005097443A2 (fr) 2004-04-08 2005-04-07 Procede d'impregnation de bois massif

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DE (1) DE102004041032A1 (fr)
WO (1) WO2005097443A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8091952B2 (en) 2007-09-19 2012-01-10 Prolam, Societe En Commandite Hardwood truck flooring with wood preservatives
CN103223686A (zh) * 2013-05-07 2013-07-31 王永洁 耐湿耐热、尺寸稳定、不变形、不开裂实木地板的处理方法
US9682493B2 (en) 2008-05-09 2017-06-20 Prolam, Societe En Commandite Method for impregnation of wood component with solid paraffin wax, apparatus therefor and wood component so impregnated
DE202017103282U1 (de) 2017-05-31 2017-06-28 Sasol Wax Gmbh Wachszusammensetzung zur Imprägnierung von Holz enthaltend eine Fischer-Tropsch-Wachsmischung und ein Polyethylen-Homopolymer und Vollholz umfassend diese

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DE102005059207A1 (de) * 2005-12-09 2007-06-14 Georg-August-Universität Göttingen Institut für Holzbiologie und Holztechnologie Holzartikel
DE102007002395B4 (de) * 2007-01-10 2012-05-03 Bostik Gmbh Verwendung eines Hydrophobierungsmittels für klebfrei verlegte Laminat- und Parkettbodenelemente
DE102008011163A1 (de) * 2008-02-26 2009-08-27 Sasol Wax Gmbh Holzwerkstoff-Zusammensetzung enthaltend Olefine und Verwendung von Olefinen zur Hydrophobierung von Holzwerkstoff-Rohstoffen und Verfahren zur Herstellung von Holzwerkstoffen
FI125776B2 (fi) 2008-06-27 2023-07-28 Metsaeliitto Osuuskunta Menetelmä puulevyn käsittelemiseksi
DE102009014123A1 (de) 2009-03-24 2010-09-30 Peter Habel Verfahren zur Herstellung einer Schutzbeschichtung für Gegenstände aus einem porösem Grundmaterial
AT509289B1 (de) * 2009-12-28 2014-06-15 Chemiefaser Lenzing Ag Funktionalisierter cellulosischer formkörper und verfahren zu seiner herstellung
WO2011130338A1 (fr) * 2010-04-13 2011-10-20 T.I.P. Traditional Industries Intellectual Property Ltd. Matériaux hydrofuges pour produits de bois
CL2016003356A1 (es) * 2016-12-28 2017-06-02 Univ De Concepción Una emulsión con capacidad hidrofobica y biocida, útil para la protección de madera.
CN106965281B (zh) * 2017-04-10 2018-10-23 阜南佳利工艺品有限公司 一种提高杨树木板抗老化性能的处理方法

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GB265206A (en) * 1926-01-26 1927-10-06 Montan Inc Improved process of impregnating wood
GB316649A (en) * 1928-05-02 1929-08-02 Ig Farbenindustrie Ag Improvements in the qualities of porous materials by an impregnation process
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US3617314A (en) * 1968-07-23 1971-11-02 Monsanto Co Wood treatment
GB1318076A (en) * 1969-08-14 1973-05-23 Conservatome Processes for treating articles of porous material
EP1260331A1 (fr) * 2001-05-18 2002-11-27 Markus Dipl.-Ing. Rettenbacher Bois imprégné
WO2002098578A1 (fr) * 2001-05-21 2002-12-12 Coating Development Group, Inc. Procede de traitement de bois par pression
WO2004056542A1 (fr) * 2002-12-20 2004-07-08 Trevor Ian Mcintosh Produit de bois comprime et fabrication

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Publication number Priority date Publication date Assignee Title
US1556570A (en) * 1925-02-02 1925-10-06 Montan Inc Impregnated wood and process of treating wood
GB265206A (en) * 1926-01-26 1927-10-06 Montan Inc Improved process of impregnating wood
GB316649A (en) * 1928-05-02 1929-08-02 Ig Farbenindustrie Ag Improvements in the qualities of porous materials by an impregnation process
US1892658A (en) * 1931-12-21 1932-12-27 Standard Oil Dev Co Treating wood
US3617314A (en) * 1968-07-23 1971-11-02 Monsanto Co Wood treatment
GB1318076A (en) * 1969-08-14 1973-05-23 Conservatome Processes for treating articles of porous material
EP1260331A1 (fr) * 2001-05-18 2002-11-27 Markus Dipl.-Ing. Rettenbacher Bois imprégné
WO2002098578A1 (fr) * 2001-05-21 2002-12-12 Coating Development Group, Inc. Procede de traitement de bois par pression
WO2004056542A1 (fr) * 2002-12-20 2004-07-08 Trevor Ian Mcintosh Produit de bois comprime et fabrication

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8091952B2 (en) 2007-09-19 2012-01-10 Prolam, Societe En Commandite Hardwood truck flooring with wood preservatives
US9682493B2 (en) 2008-05-09 2017-06-20 Prolam, Societe En Commandite Method for impregnation of wood component with solid paraffin wax, apparatus therefor and wood component so impregnated
US10926285B2 (en) 2008-05-09 2021-02-23 Prolam, Société En Commandite Method for impregnation of wood component with solid paraffin wax, apparatus therefor and wood component so impregnated
CN103223686A (zh) * 2013-05-07 2013-07-31 王永洁 耐湿耐热、尺寸稳定、不变形、不开裂实木地板的处理方法
DE202017103282U1 (de) 2017-05-31 2017-06-28 Sasol Wax Gmbh Wachszusammensetzung zur Imprägnierung von Holz enthaltend eine Fischer-Tropsch-Wachsmischung und ein Polyethylen-Homopolymer und Vollholz umfassend diese

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DE102004041032A1 (de) 2005-10-27

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