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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 7674. Отображено 100.
23-02-2012 дата публикации

Solvent recovery

Номер: US20120042535A1
Автор: Nigel Paul Maynard
Принадлежит: MATTERSMITHS TECHNOLOGIES Ltd

The invention relates to compositions for, and methods of, delivering treatment compounds to lignocellulosic substrates, wherein the solvent is recovered using RF energy.

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Номер записи: 1
28-06-2012 дата публикации

Wood heater with enhanced microwave launching system

Номер: US20120160836A1
Автор: Brad William OVERTURF, David Carl Attride, Harold Dail KIMREY, Jr., Mark Robert Shelton
Принадлежит: Eastman Chemical Co

A microwave heater capable of heating a bundle of wood and equipped with an optimized system for launching and/or dispersing microwave energy. The microwave launching system can include one or more split microwave launchers at least partly disposed in the interior of the heater. The microwave dispersing system can include one or more moving reflectors for rastering microwave energy emitted from the split launchers.

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Номер записи: 2
18-10-2012 дата публикации

Powder based balancing layer

Номер: US20120263965A1
Автор: Hans Persson, Jan Jacobsson, Niclas Hakansson
Принадлежит: CeraLoc Innovation Belgium BVBA

A method to produce a building panel comprising a decorative surface layer, a core and a balancing and/or protective layer is disclosed.

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Номер записи: 3
28-03-2013 дата публикации

PHOSPHATE BONDED COMPOSITES AND METHODS

Номер: US20130078479A1
Автор: Mangalam Anand Paul, Patel Sameerkumar Vasantlal, Wagh Arun S.
Принадлежит: LATITUDE 18, INC.

Inorganic-organic composite articles and methods for producing them using inorganic acidic/alkaline precursor components as inorganic adhesives is provided. Articles prepared therefrom provide improved flexibility, zero flame spread, no release of volatile organic compounds, and low carbon foot print. 1. A method of producing a composite product , the method comprising providing an organic material , and{'sub': 2', '4', '2', '4', '2', '4', '2', '4', '2', '2', '2', '4', '2', '2', '2', '4', '2', '3', '4', '2', '2', '2', '4, 'contacting the organic material with an inorganic adhesive, the inorganic adhesive comprising a mixture of an inorganic acidic precursor and an alkaline precursor the inorganic acidic precursor comprising at least one of a saturated solution of phosphoric acid, sodium dihydrogen phosphate (NaHPO), potassium dihydrogen phosphate (KHPO), cesium dihydrogen phosphate (CsHPO), magnesium dihydrogen phosphate (Mg(HPO).2HO), calcium dihydrogen phosphate (Ca(HPO).2HO), zinc dihydrogen phosphate (Zn(HPO)), mono aluminum hydro phosphate (AlH(PO).HO), MgCl, MgSO, and mixtures thereof.'}2. The method of claim 1 , wherein the weight ratio of the organic material to the total inorganic adhesive claim 1 , excluding water content claim 1 , is less than about 40 weight percent organic material providing a fiber-reinforced ceramic composite product; or is more than 40 weight percent organic material providing an inorganic fiber composite product.3. The method of claim 1 , wherein the organic material comprises at least one of wood veneer claim 1 , short and long flakes claim 1 , long fiber claim 1 , short fiber claim 1 , strands claim 1 , saw dust claim 1 , wood particles claim 1 , fiber bundles claim 1 , stone groundwood (SGW) claim 1 , pressure groundwood (PSW) claim 1 , refiner mechanical pulp (RMP) claim 1 , thermomechanical pulp (TMP) claim 1 , chemithermomechanical pulp (CTMP) claim 1 , kraft pulp claim 1 , sulfite pulp claim 1 , soda pulp claim 1 , bleached ...

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Номер записи: 4
20-06-2013 дата публикации

METHOD OF TREATMENT OF WOODEN ITEMS

Номер: US20130153087A1
Автор: Bies Gary D., Emery Raymond R., Perkins Donald Martin
Принадлежит:

An improved method for the treatment of wood in preparation for manufacture of wooden items comprising the steps of first heat treating the wood and then fashioning the wood into a finished item, whereby the resulting wooden item is darker, harder, more weather and rot resistant, and more stable than items fashioned from untreated wood. 1. A method of preparing a wooden item , said method comprising the following steps:A. obtain a piece of wood;B. dry said piece of wood until said piece of wood has a moisture content of less than fifteen percent;C. place said piece of wood into an oven heated to between 150° C. and 240° C.;D. allow said piece of wood to be heated by oven for between 2 and 96 hours such that said piece of wood achieves an internal temperature of at least 150° C.; andE. remove said piece of wood from oven and allow said piece of wood to cool to substantially room temperature;whereby Steps A through E are to be performed consecutively.2Dalbergia melanoxylonMicroberlinia brazzavillensisAfzelia africanaGossweilerodendron balsamiferumTilia americanaFagus grandifoliaUlmus americanaCarpinus carolinianaPlatanus occidentalisMalus sylvestrisCupressus arizonicaAcacia melanoxylonCasuarina equisetifoliaSantalum spicatumDistemonanthus benthamianusTaxodium distichumAbies balsameaPopulus balsamiferaSwietenia macrophyllaPopulus grandidentataAlnus glutinosaFraxinus nigraPrunus serotinaKrugiodendron ferreumRobinia pseudacaciaAcer nigrumQuercus velutinaPopulus nigraPicea marianaJuglans nigraSalix nigraCastanospermum australeEucalyptus pilularisNyssa sylvaticaBrosimum paraenseFraxinus quadrangulataEucalyptus salignaCordia alliodoraAcer negundoBuxus sempervirensSwartzia tomentosaDalbergia nigraCaesalpinia echinataEucalyptus astringensGuibourtia demeuseiQuercus macrocarpaJuglans cinereaUmbellularia californicaJuglans californicaCinnamomum camphoraQuercus chrysolepisCalodendrum capenseCarapa guianensisLyonothamnus floribundusPhyllocladus aspleniifoliusCastanea ...

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Номер записи: 5
04-07-2013 дата публикации

Wood treatment method and apparatus employing vessel with bundle stabilization system

Номер: US20130171358A1
Автор: Aaron Grills, Brian Atkinson, Carlos CARVAJAL, Dwayne Ray Leonard, J. Clayton CARTER, James Stewart NELSON, Jared Moore, Jarvey Eugene Felty, Jr., Marcus Eric Johnson, Mark Robert Shelton
Принадлежит: Eastman Chemical Co

A wood treatment method and apparatus utilizing a treatment vessel having an integrated bundle hold-down system for securing a bundle of wood within the interior of the vessel during treatment. The bundle hold-down system can be operable to counteract large buoyant forces associated with submersing the bundle of wood in a liquid reagent and/or can be used to maintain the shape and/or position of the bundle during treatment, even if a liquid reagent is not present.

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Номер записи: 6
04-07-2013 дата публикации

WOOD TREATMENT METHOD AND APPARATUS EMPLOYING DETACHABLE BUNDLE SUPPORT

Номер: US20130171364A1
Автор: ATKINSON BRIAN, Carter J. Clayton, Carvajal Carlos, Grills Aaron, Jones Robert Eugene, Moore Jared, Nelson James Stewart, Shelton Mark Robert
Принадлежит: EASTMAN CHEMICAL COMPANY

A wood treatment method and apparatus employing a bundle support structure to support a bundle of wood during transportation and treatment of the bundle. The bundle support structure rests on a movable cart during transportation of the bundle, but is detached from the movable cart during treatment of the bundle. 1. A system for treating wood , said system comprising:a first wood treatment vessel for receiving and treating at least one bundle of wood; anda bundle transport system comprising a bundle support structure and a first externally driven cart,wherein said bundle support structure is configured to support said bundle of wood thereon,wherein said first externally driven cart is configured to transport said bundle of wood and said bundle support structure into and/or out of said first wood treatment vessel,wherein said first cart is configured to support said bundle of wood and said bundle support structure thereon during transport of said bundle of wood to said first wood treatment vessel, but not during treatment of said bundle of wood in said first wood treatment vessel.2. The system of claim 1 , wherein said first wood treatment vessel comprises a chemical modification reactor and/or a wood heater.3. The system of claim 1 , further comprising a second wood treatment vessel and a second externally driven cart claim 1 , wherein said first wood treatment vessel comprises a first door and said second wood treatment vessel comprises a second door claim 1 , wherein said first cart is operable to load said bundle of wood and said bundle support structure into said first wood treatment vessel via said first door claim 1 , wherein at least one of said first cart and said second cart is operable to unload said bundle of wood and said bundle support structure from said second wood treatment vessel via said second door.4. The system of claim 3 , wherein said first cart is operable to unload said bundle of wood and said bundle support structure from said second wood ...

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Номер записи: 7
04-07-2013 дата публикации

WOOD TREATMENT METHOD AND APPARATUS EMPLOYING BUNDLE LIFT SYSTEM

Номер: US20130171365A1
Автор: ATKINSON BRIAN, Carter J. Clayton, Carvajal Carlos, Grills Aaron, JR. Harold Dail, Kimrey, Moore Jared, Nelson James Stewart, Shelton Mark Robert
Принадлежит: EASTMAN CHEMICAL COMPANY

A wood treatment system that includes at least one wood treatment vessel and a bundle lift system for loading and unloading a bundle of wood from a cart used to transport the bundle into and/or out of the treatment vessel. The lift system vertically disengages the bundle of wood from the cart within the interior of the vessel, thereby allowing the cart to be removed from the vessel prior to initiating treatment. The lift system, which can be physically separate from or physically coupled to the cart, is entirely disposed within a lower portion of the interior volume of the wood treatment vessel. 1. A system for treating wood , said system comprising:a first wood treatment vessel for receiving at least one bundle of wood, wherein said first wood treatment vessel comprises a first door;a bundle transport system comprising a first cart for transporting said bundle of wood into and/or out of said first wood treatment vessel through said first door; anda lift system for vertically disengaging said bundle of wood from said first cart within the interior of said first wood treatment vessel.2. The system of claim 1 , wherein said first wood treatment is a chemical modification reactor and/or a wood heater.3. The system of claim 1 , wherein said lift system is disposed within the interior of said first wood treatment vessel during the vertical disengagement of said bundle from said first cart claim 1 , but not during treatment of said bundle of wood.4. The system of claim 3 , wherein said lift system is physically coupled to said first cart.5. The system of claim 1 , wherein said lift system comprises a plurality of extensible support arms claim 1 , wherein said lift system is shiftable between an extended position wherein at least a portion of said support arms are extended upwardly and a retracted position wherein at least a portion of said support arms are retracted downwardly claim 1 , wherein said lift system is configured to shift between said extended position and ...

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Номер записи: 8
03-10-2013 дата публикации

METHOD AND COMPOSITION FOR PRIMING WOOD AND NATURAL FIBRES

Номер: US20130260052A1
Автор: GUTOWSKI Wojciech Stanislaw, Li Sheng, MOLENAAR Sharon, SPICER Mark, YANG Wei Dong
Принадлежит: Commonwealth Scientific and Industrial Research Organisation

A method of improving the bonding of a coating or adhesive to an article comprising a wood surface comprises applying to the at least part of the wood surface a primer composition comprising a waterborne composition consisting essentially of at least one polyamine, at least one base and water and having a pH of at least 11.5. 136-. (canceled)37. A method of improving the bonding of a coating or adhesive to an article comprising a wood surface comprising applying to the at least part of the wood surface a primer composition comprising a waterborne composition consisting essentially of at least one polyamine , at least one base and water and having a pH of at least 11.5.38. A method according to claim 37 , wherein the pH of the waterborne composition is at least 12.5.39. A method according to claim 37 , wherein the polyamine comprises polymers and copolymers having multi amine groups and of molecular weight is between 200 and 3000000.40. A method according to claim 37 , wherein the polyamine comprises at least one compound selected from the group consisting of polyethyleneimines of molecular weight in the range of from 800 to 2 million.41. A method according to claim 37 , wherein the primer composition contains from 0.05 to 50% polyamine by weight based on the total weight of the composition.42. A method according to claim 37 , wherein the primer composition contains a hydroxide or carbonate base wherein the counter ion of the hydroxide or carbonate comprises at least one of a metal and ammonium cation.43. A method according to claim 37 , wherein the at least one base is selected from the group consisting of alkali and alkaline earth metal hydroxides and carbonates.44. A method according to claim 37 , wherein the base comprises a strong base in an amount of from 0.1% to 10% by weight based on the total weight of the composition.45. A method according to claim 37 , wherein the primer composition is applied to at least part of the wood surface of article by brush claim ...

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Номер записи: 9
07-11-2013 дата публикации

METHOD AND APPARATUS FOR FINISHING A WOOD PANEL

Номер: US20130291792A1
Автор: Oldorff Frank
Принадлежит:

A method for finishing an engineered wood board. The method includes: cleaning the top and bottom, applying a first top resin layer, which contains corundum particles, to the top and a first bottom resin layer to the bottom, drying the first top and first bottom resin layers to a residual moisture content of 3% to 6%, applying a second top resin layer, which contains cellulose, to the top and a second bottom resin layer to the bottom, drying the second top and second bottom resin layers to a residual moisture content of 3% to 6%, applying an at least third top resin layer, which contains glass particles, to the top and an at least third bottom resin layer to the bottom, drying the third top and third bottom resin layers to a residual moisture content of 3% to 6%, and pressing the multilayer structure under pressure and heat. 1. A device for finishing an engineered wood board having at least one top and/or bottom of with a decor , comprising:(A) a first double-sided application device;(B) a first drying device arranged downstream of the first double-sided application device in a processing direction (V),(C) a second double-sided application device arranged downstream of the first drying device in the processing direction (V),(D) a second drying device arranged downstream of the second double-sided application device in the processing direction (V),(E) at least one third double-sided application device arranged downstream of the second drying device in the processing direction (V),(F) at least one third drying deice arranged downstream of the at least one third double sided application device in the processing direction (V), and(G) a short-cycle press, wherein: a top application device for applying a resin layer to the top of the engineered wood board, and', 'a bottom application device for applying a resin layer to the bottom of the engineered wood board, and', 'each top application device and each bottom application device comprises a mixing vessel, in which the ...

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Номер записи: 10
27-02-2014 дата публикации

DEVICE AND A METHOD FOR INJECTING A FLUID INTERNALLY OF A FLOW OF LOOSE MATERIAL

Номер: US20140057047A1
Автор: Benedetti Paolo
Принадлежит: IMAL S.R.L.

A device for injecting a fluid internally of a flow of loose material, comprising: a feeder () of loose material (), provided with a lower discharge mouth () through which the loose material () flows along a descending direction (Y); an injector (), predisposed to inject a fluid onto the loose material (), which injector () is located below the discharge mouth () such as to be positioned internally of the flow of loose material (). 121002410031003241003313143. A device for injecting a fluid internally of a flow of loose material , comprising a feeder () of loose material () , provided with a lower discharge mouth () through which the loose material () flows along a descending direction (Y) , an injector () , predisposed to inject a fluid onto the loose material () , which injector () is located below the discharge mouth () such as to be positioned internally of the flow of loose material (); the injector () is arranged along the descending direction (Y) and comprises at least a nozzle () for emitting the fluid , which nozzle is facing downwards; characterised in that it comprises at least two nozzles () arranged symmetrically with respect to the descending direction (Y) and inclined such as to diverge with respect to one another , and which comprises a motor device () predisposed for enabling movement of the injector () along a longitudinal direction (Z) perpendicular to the descending direction (Y).231. The device according to claim 1 , comprising a plurality of nozzles () arranged along a longitudinal direction (Z) that is perpendicular to the descending direction (Y).331. The device according to claim 1 , comprising a plurality of nozzles () arranged along a circumference.43343. The device according to claim 1 , wherein the injector () comprises a deflector () arranged at a top of the injector ().5341003. The device according to claim 4 , wherein the deflector () is conformed such as to create a depression internally of the flow of loose material () claim 4 , ...

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Номер записи: 11
14-01-2016 дата публикации

Composition and Method of Manufacture of Hardened Wood

Номер: US20160009000A1
Автор: Sanderson Brian Matthew
Принадлежит:

There is a hardened wood composition, comprising an acetylated whole wood portion that may have substantially all of its accessible interior volume impregnated with a hardened thermosetting plastic. A method of manufacturing a hardened wood comprising the steps of: acetylating a whole wood portion and impregnating the whole wood portion with a liquid-phase thermosetting polymer then curing such thermosetting polymer impregnated porous body by the steps of: enclosing the body in a fluid impermeable bag and subjecting the enclosed body to enhanced fluid pressure substantially, contemporaneously, with subjecting the enclosed body to a temperature sufficient to cure the thermosetting plastic impregnated therein by submerging the same in water near its boiling point. 1. A method of manufacturing a hardened wood comprising the steps of acetylating a whole wood portion and impregnating the whole wood portion with a liquid-phase thermosetting polymer.2. A method of curing a thermosetting polymer impregnated porous body comprising the steps of enclosing the body in a fluid impermeable membrane and subjecting the enclosed body to enhanced fluid pressure as compared to pressure immediately surrounding the body substantially contemporaneously with subjecting the enclosed body interior to the membrane to a temperature sufficient to cure the thermosetting plastic impregnated therein.3. The method of claim 3 , wherein the membrane is a plastic bag and the fluid. pressure and temperature is applied by submerging the enclosed body in water near but below boiling temperature.4. The method of claim 3 , wherein the membrane includes a material selected from the group of materials consisting of silicone claim 3 , rubber claim 3 , neoprene claim 3 , and biaxially-oriented polyethylene terephthalate. This application is a Divisional Application of under 35 U.S.C. §121, and claims priority to, under 35 U.S.C. §121, U.S. Non-Provisional application Ser. No. 14/183,824, entitled Composition ...

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Номер записи: 12
14-01-2021 дата публикации

METHODS FOR ENHANCING THE PRESERVATION OF CELLULOSIC MATERIALS AND CELLULOSIC MATERIALS PREPARED THEREBY

Номер: US20210008755A1
Автор: Brimhall Daniel
Принадлежит: American Chemet Corporation

Methods for treating cellulosic materials comprising introducing a liquid treating composition into the cellulosic material, the treating composition comprising a solution prepared from at least: (i) one or more of a copper amine complex or copper ammine complex, such as copper tetraamine carbonate, (ii) one or more of ammonia or a water-soluble amine and (iii) water; and exposing the cellulosic material provided thereby to carbon dioxide and/or carbonic acid to provide treated cellulosic material, and treated cellulosic materials prepared thereby. 177.-. (canceled)78. A method for treating cellulosic material comprising:(a) introducing the cellulosic material to be treated into a vessel;(b) introducing a treating composition into the vessel in an amount sufficient to immerse the cellulosic material therein, and thereafter providing a pressure within the vessel for a time sufficient to permit the treating composition to permeate the cellulosic material, wherein the treating composition is an aqueous alkaline copper containing solution comprising about 0.01 wt. % to about 10 wt. % copper tetraammine carbonate, the treating composition optionally further comprising one or more of an insecticide, mold inhibitor, algaecide, bactericide, water repellant, colorant or corrosion inhibitor;(c) removing from the vessel any treating solution not introduced into the cellulosic material after immersion;(d) introducing carbon dioxide into the vessel; and(e) removing the treated cellulose material from the vessel,wherein the cellulosic material is Southern Pine, Douglas Fir, Hem Fir or Spruce-Pine Fir.79. The method according to claim 78 , wherein the treating composition comprises about 0.05 wt. % to about 5 wt. % copper tetraammine carbonate.80. Treated cellulosic material prepared according to claim 78 , wherein the copper content in the treated cellulosic material is about 0.01 to about 0.3 lbs/ft.81. The treated cellulosic material of claim 80 , wherein the copper leaching of ...

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Номер записи: 13
14-01-2021 дата публикации

ELECTRON BEAM TREATMENT FOR INVASIVE PESTS

Номер: US20210008756A1
Автор: Geelhoed Michael
Принадлежит:

A system and method for the treatment of invasive pests includes an irradiation device that can generate an electron beam that is applicable to a tree infected by an invasive pest, wherein the electron beam provides an in-situ treatment for the tree infected by the invasive pest by killing the invasive pest via electron beam irradiation. One or more temperature sensors can be used to track the internal temperature of a tree surrogate. A differential temperature difference tracked by temperature sensor can be used to ensure that a reduction in temperature of the tree is attributable to the electron beam rather than increase in heat. 1. A system for treatment of invasive pests , comprising:an irradiation device for generating a particle beam, the particle beam being applicable to a log;at least one spinning roller configured to rotate the log, wherein the particle beam provides an in-situ treatment of the log via irradiation from the particle beam.2. The system for treatment of invasive pests of claim 1 , wherein the irradiation device comprises an electron beam irradiation device claim 1 , and the particle beam comprise an electron beam.3. The system for treatment of invasive pests of wherein the electron beam generated by the electron beam irradiation device comprises a 9 MeV electron beam.4. The system for treatment of invasive pests of further comprising:at least one temperature sensor configured to track an internal temperature of at least one tree surrogate, wherein a differential temperature difference tracked by the at least one temperature sensor is used to ensure that a reduction in a temperature associated with the log is attributable to the particle beam.5. The system for treatment of invasive pests of wherein the irradiation device comprises a portable irradiation device.6. The system for treatment of invasive pests of wherein the irradiation device comprises a portable electron beam accelerator.7. The system for treatment of invasive pests of wherein a ...

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Номер записи: 14
03-02-2022 дата публикации

METHOD AND DEVICE FOR PRODUCING PRODUCTS BY USING LIGNOCELLULOSE-CONTAINING PARTICLES

Номер: US20220033656A1
Автор: Schwarz Wolfgang, THOLE Volker, ZAHER Max
Принадлежит:

The invention relates to a method and devices for producing products () by using cellulose-containing particles, with which the following steps are carried out: a) irradiating the particles with electrons in the energy range >1 MeV: b) mixing the irradiated particles with electron-beam-reactive powder of a synthetic polymer, in particular a thermoplastic, having powder particle sizes <2000 micrometres and/or with a liquid electron-beam-reactive synthetic or bio-based polymer; c) forming the mixture created in a way corresponding to the form of the product to be produced, in particular forming it into a nonwoven (): d) heating the formed mixture to 100-180° C.; e) pressing the formed mixture without heating; and f) irradiating the pressed mixture with electrons in the energy range of 1 MeV to 10 Me V and also with appropriately chosen dosages and dosing rates. 1. Method for producing a formed part containing lignocellulose , the method having the following steps:a) irradiation of lignocellulose-containing particles in the energy range between 1 MeV and 10 MeV, preferably >3 MeV <8 MeV;b) mixing the irradiated lignocellulose-containing particles with an electron-beam-reactive polymer in powder form, in particular a thermoplastic, with powder particle sizes <2000 micrometres (μm), and/or with a liquid containing electron-beam-reactive polymer;c) forming of the mixture produced in a way corresponding to the form of the formed part to be produced, in particular forming it into a nonwoven;d) conveying the formed mixture to a preheating device;e) heating the formed mixture to 100-180° C.;f) pressing the formed mixture without significant heating; andg) irradiating the pressed mixture with electrons in the energy range from 1 MeV to 10 MeV.2. Method according to claim 1 , characterised in that in step a) irradiation takes place with a dosage between 50 and 150 kGy claim 1 , in particular with a dosage input of 100 kGy plus/minus 20 kGy.3. Method according to claim 1 , ...

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Номер записи: 15
18-01-2018 дата публикации

Thermo Treatment Process for Wood

Номер: US20180015636A1
Автор: Klaas Peter
Принадлежит:

Thermo treatment process for wood comprising the following steps: 1. Thermo treatment process for wood comprising the following steps:a. Placing the wood batch to be treated in a treatment chamber;b. Exchanging the atmosphere inside the treatment chamber by evacuating the air, replacing the evacuated air by an inert gas atmosphere in gas form, at 8 to 12 bar pressure;c. Heating the inert gas atmosphere up to 165 to 175° C.,d. increasing the pressure in the inert gas atmosphere to 14-16 bar;e. maintaining the temperature in step c. and the pressure in step d. for from 90 to 150 minutes;f. cooling the inert gas atmosphere to a temperature of 20 to 35° C.g. retrieving the treated wood batch.2. Thermo treatment process for wood according to claim 1 , wherein the inert gas is Nitrogen.3. Thermo treatment process for wood according to wherein the process in steps c. and d. takes between 90 to 110 minutes.4. Thermo treatment process for wood according to wherein in step d. or e. a mineral or organic oil may be applied to the batch of wood.5. Thermo treatment process for wood according to wherein an impregnating agent is applied to the batch of wood in step d. or e. This application claims the benefit of Danish Application No. PA 2016 70528 filed Jul. 15, 2016, which is hereby incorporated by reference in its entirety as if fully set forth herein.The present invention is directed at a thermo treatment process for wood.In the art there has been suggested various methods for thermo treatment of wood as will be explained below. The purpose of subjecting wood to a thermo treatment is that it has for a long time been known that by treating wood under a certain temperature regime increasing the temperature for a period of time and thereafter reducing the temperature back to ambient temperature the wood attains some improved qualities. For example the durability as well as the insulating properties of the timber are improved. Laboratory tests have shown that this is due to a ...

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Номер записи: 16
16-01-2020 дата публикации

Process for wood oil modification of wood products

Номер: US20200016785A1
Автор: Reeta-Maria STÖD, Tommy MARKOFF
Принадлежит: STORA ENSO OYJ

The present invention relates to a process for preparing a modified wood product wherein the wood is impregnated with water-based wood oils. In one embodiment, the wood is thermally modified prior to the impregnation. The present invention also relates to a modified wood product produced using said process.

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Номер записи: 17
21-01-2021 дата публикации

MODIFIED WOOD PRODUCT AND A PROCESS FOR PRODUCING SAID PRODUCT

Номер: US20210016466A1
Автор: Biziks Vladimirs, Fleckenstein Marco, Mai Carsten, Mayes Duncan, Militz Holger, Pynnönen Janne
Принадлежит: STORA ENSO OYJ

The present invention relates to a process for preparing a modified wood product wherein the wood is treated with low-molecular weight resin based on lignin degradation products. The present invention also relates to a modified wood product produced using said process. 1. A process for preparing a modified wood product , comprising the steps of:a) providing lignin;b) degrading the lignin into lignin cleavage products;c) fractionating the lignin cleavage products;d) selecting one or more fractions of lignin cleavage products;e) preparing a phenol-formaldehyde resin comprising the selected lignin cleavage products;f) treating wood with the phenol-formaldehyde resin comprising the selected lignin cleavage products to obtain a modified wood product.2. The process according to claim 1 , wherein the lignin is degraded by using sodium hydroxide as catalyst or by using a catalyst and microwave energy.3. The process according to claim 1 , wherein the lignin cleavage products are chemically modified before step c) by hydroxymethylation.4. The process according to claim 1 , wherein the wood has a moisture content of about 12%.5. The process according to claim 1 , wherein the lignin is kraft lignin.6. The process according to claim 1 , wherein the wood has been thermally modified prior to modification with the phenol-formaldehyde resin comprising the selected lignin cleavage products.7. The process according to claim 1 , wherein the wood is densified during or after treatment with the phenol-formaldehyde resin comprising the selected lignin cleavage products.8. A modified wood product obtained by the process according to .9. The modified wood product according to claim 8 , wherein the wood is a softwood or hardwood.10. The process of further comprising:manufacturing cladding, decking, window and door profiles, light poles, jetties, joinery or furniture with the modified wood product.11. The process of further comprising:chemically modifying the selected lignin cleavage products ...

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Номер записи: 18
17-04-2014 дата публикации

Device and method for gluing fibers

Номер: US20140106069A1
Автор: Guenter Staub, Rolf Trummel, Rudolf Christopher Ohlendorf
Принадлежит: Siempelkamp Maschinen und Anlagenbau GmbH and Co KG

A device for gluing fibers or similar particles, in particular for the production of wood material panels, for example fiber panels, having a blowline ( 3 ) through which the fibers to be glued are transported, wherein there are connected to the blowline a plurality of nozzles ( 4 ) which issue into the blowline and by means of which the fibers transported through the blowline can be sprayed with glue, wherein the nozzles ( 4 ) are formed as multiple-substance nozzles, for example two-substance nozzles for the purpose of steam atomization, to which nozzles in each case at least one glue feed line ( 5 ) and one steam feed line ( 6 ) are connected, characterized in that in each case one glue valve ( 7 ) and one throughflow measurement device ( 8 ) are integrated into the glue feed lines ( 5 ), and in that the glue valves ( 7 ) and the throughflow measurement devices ( 8 ) are connected to at least one control and/or regulating device, such that the throughflow rate for each glue feed line ( 5 ) can be separately controlled or regulated by means of the glue valves ( 7 ).

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Номер записи: 19
25-01-2018 дата публикации

A Method and Formulation for the Treatment of Timber

Номер: US20180021974A1
Автор: Humphrey David, McFarling Shane, Skewes Brett
Принадлежит:

According to the present invention there is provided a method of treating timber with a creosote-containing preservative formulation adapted for use at substantially ambient temperature. The formulation comprises: creosote; one or more surfactants such that when diluted with a predetermined quantity of water, the creosote is present as an oil-in-water macroemulsion or microemulsion; and optionally, an anti-foaming agent and/or a fire retardant. It is found empirically that the inventive concentrate allows for the use of creosote, a known-effective biocide, without many of the drawbacks inherent in such use. 1. A method of treating timber , the method comprising the steps of:selecting a timber substrate; andapplying to the substrate an effective amount of a preservative formulation comprising an oil-in-water macroemulsion or microemulsion of creosote in water and one or more surfactants comprising a non-ionic surfactant,wherein the preservative formulation is at substantially ambient temperature.2. A method according to claim 1 , wherein the one or more surfactants further comprises an anionic surfactant.3. A method according to claim 1 , wherein the substantially ambient temperature is between about 5° C. and about 60° C.4. A method according to claim 1 , wherein the substantially ambient temperature is between about 17.5° C. to about 25° C.5. A method according to claim 1 , wherein the step of applying the preservative formulation claim 1 , which is at substantially ambient temperature claim 1 , is performed by means of dipping claim 1 , brushing claim 1 , spraying claim 1 , misting claim 1 , deluging or coating the surface area of the timber with the preservative formulation.6. A method according to claim 1 , wherein the timber comprises hardwood and/or softwood species.7. A method according to claim 1 , wherein the timber is pine posts and wherein the preservation is effected to nominal H5 (AS 1604.1-2012) standards.8. A method according to claim 1 , wherein the ...

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Номер записи: 20
10-02-2022 дата публикации

STRONG AND TOUGH STRUCTURAL WOOD MATERIALS, AND METHODS FOR FABRICATING AND USE THEREOF

Номер: US20220040881A1
Автор: Hu Liangbing, SONG Jianwei, ZHU MINGWEI
Принадлежит:

A super strong and tough densified wood structure is formed by subjecting a cellulose-based natural wood material to a chemical treatment that partially removes lignin therefrom. The treated wood retains lumina of the natural wood, with cellulose nanofibers of cell walls being aligned. The treated wood is then pressed in a direction crossing the direction in which the lumina extend, such that the lumina collapse and any residual fluid within the wood is removed. As a result, the cell walls become entangled and hydrogen bonds are formed between adjacent cellulose nanofibers, thereby improving the strength and toughness of the wood among other mechanical properties. By further modifying, manipulating, or machining the densified wood, it can be adapted to various applications. 1132-. (canceled)133. A structure comprising:{'sup': '3', 'a chemically-modified, densified piece of wood having a tensile strength of at least 350 MPa and a density of 1.13-1.30 g/cm,'}wherein lumina, which were defined by a cellulose-based microstructure of the wood in its native state, are collapsed within the chemically-modified, densified piece of wood, andwherein lignin, which was present in the wood in its native state, is at least partially removed from the cellulose-based microstructure of the chemically-modified, densified piece of wood.134. The structure of claim 133 , wherein hydrogen bonds couple together facing portions of the collapsed lumina in the chemically-modified claim 133 , densified piece of wood.135. The structure of claim 133 , wherein cellulose nanofibers within the chemically-modified claim 133 , densified piece of wood are aligned substantially parallel to a direction of extension of the collapsed lumina.136. The structure of claim 133 , further comprising non-native hydrophobic nanoparticles incorporated within the collapsed lumina in the chemically-modified claim 133 , densified piece of wood.137. The structure of claim 133 , further comprising a paint or coating on ...

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Номер записи: 21
25-01-2018 дата публикации

Peel-resistant self-healing coatings and stains for porous substrates

Номер: US20180022942A1
Автор: Byron R. EBBERT, Gerald O. Wilson
Принадлежит: Autonomic Materials Inc

Disclosed are methods of protecting porous substrates and/or increasing the peel-resistance of coatings and stains for porous substrates. The methods may include providing a stain or coating comprising a microencapsulated self-healing material; and applying the stain or coating to a porous substrate. Damage to the stain or coating may release the self-healing material at a site of damage, such as a crack or scratch in the stain or coating. The self-healing material may be a polymeric precursor, .an unsaturated polyester resin or alkyd, a fatty acid-based natural oil or derivative thereof, or a cross-linkable silane or siloxane monomer or resin. The microencapsulated self-healing material may include a microcapsule having a shell wall that includes a thermosetting polymer or a thermoplastic polymer; the thermosetting polymer may include urea-formaldehyde, melamine formaldehyde, polyurethane, polyurea, or polyacrylate; and the thermoplastic polymer comprises poly(methyl methacrylate), poly(lactic acid), or poly(glycolic acid).

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Номер записи: 22
24-01-2019 дата публикации

Flame-Treated Drum and Method of Treatment

Номер: US20190022890A1
Автор: Alldred Ben, Kelly Bryan, Talas Jason
Принадлежит:

A wooden drum shell that is treated by direct heating by exposure to a flame to alter the state of fibers in an outer layer of the drum shell relative to the untreated drum shell or inner fibers below the outermost layer. A method of manufacturing a treated drum shell includes selecting a wooden starting material, forming an untreated drum shell from the starting material, and exposing the drum untreated drum shell directly to a flame. 1. A method of manufacturing a treated wooden drum shell from an untreated drum shell starting material having a wooden exterior surface , comprising exposing the exterior surface of the untreated drum shell to a flame , thereby altering wood fibers in an outer layer of the treated drum shell relative to the untreated drum shell to form a protective armor layer.2. The method of claim 1 , wherein the untreated drum shell includes an exterior surface made from oak.3. The method of claim 1 , wherein the wood fibers are altered at least partially via crystallization of sap resin present in the wood on the exterior surface.4. The method of claim 1 , wherein the flame has a temperature of at least 1400 degrees Fahrenheit.5. The method of claim 1 , wherein the flame has a temperature within the range of approximately 1900 degrees Fahrenheit to approximately 2010 degrees Fahrenheit.6. The method of claim 1 , including the steps of(a) selecting a starting material made from wood;(b) forming the starting material into an untreated drum shell with a wooden outer surface; and(c) treating the untreated drum shell by exposing the exterior surface to a flame having a temperature within the approximate range of 1400 degrees Fahrenheit to 2500 degrees Fahrenheit to produce the treated drum shell having a protective armor.7. The method of claim 6 , wherein the untreated drum shell defines a central axis claim 6 , and step (c) of treating the untreated drum shell comprises exposing the exterior surface directly to a flame by reciprocating the untreated ...

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Номер записи: 23
23-01-2020 дата публикации

TRANSPARENT WOOD AND A METHOD FOR ITS PREPARATION

Номер: US20200023546A1
Автор: Berglund Lars, Li Yuanyuan, Rojas Ramiro
Принадлежит:

A transparent wood comprising at least one polymer and a wood substrate comprising more than 15% lignin, measured as Klason lignin, and having an optical transmittance of at least 60%, as well as a method for its preparation. 1. Transparent wood comprising a wood substrate and at least one polymer , wherein said transparent wood has an optical transmittance of at least 60% at a wavelength in the electromagnetic spectrum of wavelengths from 400 to 1000 nm , and wherein the wood substrate comprises more than 15% lignin , measured as Klason lignin.2. The transparent wood according to claim 1 , further having a haze of at least 60% at a wavelength in the electromagnetic spectrum of wavelengths from 400 to 1000 nm.3. The transparent wood according to or claim 1 , wherein the optical transmittance is at least 70%.4. The transparent wood according any one of - claim 1 , having a thickness of at least 0.3 mm.5. The transparent wood according any one of - claim 1 , wherein the polymer has a refractive index from 1.3 to 1.7.6. A method for preparing transparent wood claim 1 , comprising the steps ofa) Providing at least one piece of wood substrate;b) Adding a bleaching liquor to inactivate the chromophores in the wood substrate, thereby obtaining a bleached wood substrate comprising at least 15% lignin;c) Impregnating the bleached wood substrate obtained in (b) with solution comprising pre-polymers, or monomers, or a combination thereof,d) Polymerizing the impregnating pre-polymers, or monomers, or combination thereof, to obtain a transparent wood comprising a wood substrate and at least one polymer.7. The method according to claim 6 , wherein the peroxide systems for use in step (b) comprises hydrogen peroxide.8. The method according to any one of - claim 6 , wherein the method further comprises a step of removing metal ions from the piece of wood in step (a) claim 6 , such as by adding DTPA claim 6 , before adding the bleaching liquor in step (b).9. The method according to ...

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Номер записи: 24
05-02-2015 дата публикации

Wood coloring with fungi and the treating process

Номер: US20150033480A1
Автор: Dian-Qing Yang, Manon Gignac
Принадлежит: FPINNOVATIONS

Wood color has an important economical impact on wood products. The hardwood lumber industry has shown a particular increase in demand by their customers for wood with an attractive, consistent and specified color. Fungi are a specific group of micro-organisms that can affect wood color. Some fungi produce various colourful pigments during their growth and can produce a preferable uniform color on wood products. The present invention includes methods to use selected fungi for producing various commercially desirable colors on wood and wood products. The methods include manners of fungal selection, culturing conditions, wood treating procedure, incubation timeframe, and drying process. The present invention also describes the wood produced by the method.

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Номер записи: 25
31-01-2019 дата публикации

COMPOSITIONS AND METHODS FOR TREATING CELLULOSE-BASED MATERIALS WITH MICRONIZED ADDITIVES

Номер: US20190030748A1
Автор: Leach Robert M., ZHANG JUN
Принадлежит:

A composition for treating cellulosic materials is provided. The composition comprises a dispersion of micronized additives. The dispersion comprises additive particles with diameters in the range of 0.001 to 25 microns. Also provided is a method for the application of the additive-containing composition to wood, as well as wood products which have been treated with the composition. 1. Wood comprising:a) an aqueous composition comprising one or more solid particles of an additive dispersed in water having diameters in the range of 0.001 to 25 microns;b) wherein at least some of the particles penetrate the surface of the wood and are distributed throughout a cross section of the wood; andc) wherein the additive is carbon black or black iron oxide; and greater than 80 weight percent of the particles have diameters less than 1 micron.2. Wood treated by a process comprising the steps of:a) providing an aqueous composition comprising one or more solid particles of a first additive and a second additive dispersed in water, said particles having diameters in the range of 0.001 to 25 microns; andb) applying said composition to the wood such that at least some of the particles penetrate the surface of the wood and are distributed throughout a cross section of the wood;wherein the first additive is carbon black or black iron oxide; greater than 80 weight percent of the particles of the first additive have diameters less than 1 micron; and the second additive is zinc oxide, titanium dioxide, or an aluminum flake pigment;wherein the first and second additives are applied to the wood by pressure treatment, vacuum treatment, or both; andwherein the wood comprises solid particles of the first and second additives inside the wood.3. Wood of claim 2 , wherein said aqueous composition further comprises one or more additives selected from the group consisting of inorganic pigments claim 2 , organic pigments claim 2 , water repellants claim 2 , anti-weathering agents claim 2 , and ...

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Номер записи: 26
11-02-2016 дата публикации

ENGINEERED TIMBER PRODUCTS, COMPONENTS AND METHODOLOGIES

Номер: US20160039112A1
Автор: Bosson Warwick, Harrison Roger Frank
Принадлежит:

A method of drying sticks, a related apparatus, resultant product and its uses where the method involves presenting a plurality of sticks in parallel as a single layer, pressing each stick with a bank of pressing members on and/or into at least one face of the sticks, each with plurality of protuberances, thereby to constrain the sticks against crook, and drying the sticks when so constrained. Preferably each bank of pressing members is an underside of a frame or lattice of a stack of such frames or lattices able to receive such a single layer of sticks between adjacent overlying/underlying frames or lattices, the protuberances preferably being only downwardly directed. 1. A method of drying a plurality of sticks of square or rectangular cross-section , said method comprising or including the steps ofadvancing the sticks laterally onto an underlying frame which will allow drying of the underlying surface of the sticks,squeezing the sticks when laterally received on the underlying frame to said underlying frame using an overlying frame carrying spaced penetrative members, said overlying frame with spaced penetrative members penetrating the upper surfaces of the sticks allowing drying of the upper most surface of the sticks, andallowing and/or causing drying to occur whilst the sticks are so constrained by such squeezing.2. The method as claimed in wherein after at least sufficient drying of the sticks whilst constrained to reduce a tendency of crook claim 1 , the squeezing is released by a lifting of the overlying frame and the sticks are moved laterally from the underlying frame.3. The method of wherein said sticks are contiguous on the underlying frame.4. The method of when performed in a stack of frames that are skeletal in nature claim 1 , each adjacent pairing to act as a pair of underlying and overlying frames claim 1 , several frames acting as both an overlying frame and an underlying frame of different parts.5. The method of wherein said squeezing the sticks ...

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Номер записи: 27
11-02-2016 дата публикации

PROCESSES FOR THE DENSIFICATION OF A CELLULOSIC SUBSTRATE

Номер: US20160039113A1
Автор: BEAKLER BRIAN, BUKOWSKI STEVEN, RAMACHANDRA SUNIL
Принадлежит:

A process for the densification of a cellulosic substrate, the process comprising: providing an apparatus comprising: a top calendar roll; a bottom calendar roll; and an in-feed conveyor; wherein the distance between the top calendar roll and the bottom calendar roll defines a separation gap; providing a cellulosic substrate having a thickness greater than the separation gap; and feeding the cellulosic substrate through the separation gap between the top calendar roll and the bottom calendar roll. 1. A process for the densification of a cellulosic substrate , the process comprising: a top calendar roll;', 'a bottom calendar roll;', 'a heat source; and', 'an in-feed conveyor;', 'wherein the distance between the top calendar roll and the bottom calendar roll defines a separation gap;, 'providing an apparatus comprisingproviding a cellulosic substrate having a thickness greater than the separation gap; andfeeding the cellulosic substrate through the separation gap between the top calendar roll and the bottom calendar roll.2. The process of claim 1 , further comprising the step of heating the cellulosic substrate to its glass transition temperature prior to feeding it through the separation gap.3. The process of claim 1 , wherein the heat source comprises a heated calendar roll claim 1 , an infrared (IR) lamp claim 1 , a microwave oven claim 1 , a convection oven claim 1 , or a combination thereof.4. The process of claim 3 , wherein the heat source comprises an IR lamp and the IR lamp is contained within an IR chamber.5. The process of claim 1 , wherein cellulosic substrate is fed through the separation gap at a line speed of from about 5 ft./min to about 10 ft./min.6. The process of claim 1 , wherein the top calendar roll is heated to a temperature of from about 110° C. to about 120° C.7. The process of claim 1 , wherein the bottom calendar roll is heated to a temperature of from about 150° C. to 235° C.8. The process of claim 1 , wherein the top calendar roll and ...

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Номер записи: 28
07-02-2019 дата публикации

CORRUGATED BOARD MANUFACTURING SYSTEM AND CORRUGATED BOARD MANUFACTURING METHOD

Номер: US20190039259A1
Автор: IMAI Masafumi
Принадлежит:

There is provided a system of manufacturing a corrugated board, including: a corrugated-shape processing apparatus for processing a board in a corrugated shape by curving the board; a shaping apparatus for adjusting a corrugated board acquired by processing the board in a corrugated shape; and a stabilizing apparatus for stabilizing the corrugated board being shaped in the corrugated shape, the corrugated-shape processing apparatus including a first pressing jig and a second pressing jig each of which is in a roller-like shape provided on its surface with asperities to press a board into a corrugated board, being disposed facing each other, the shaping apparatus including: a third pressing jig and a fourth pressing jig each of which has a surface with asperities in which a distance between adjacent apexes of the asperities is substantially identical to that of a surface with asperities of the corrugated board; and a heater the stabilizing apparatus including a fifth pressing jig and a sixth pressing jig each of which has a surface with asperities in which a distance between adjacent apexes of the asperities is substantially identical to that of a surface with asperities of the corrugated board after the heat-press process; and a cooling unit As a result, a single board can be processed in a corrugated shape and a state of the corrugated shape can be maintained. 1. A system of manufacturing a corrugated board , comprising:a corrugated-shape processing apparatus for processing a single board in a corrugated shape by curving the single board;a shaping apparatus for adjusting a shape of a single corrugated board acquired by processing the single board in a corrugated shape; anda stabilizing apparatus for stabilizing the single corrugated board being shaped in the corrugated shape, a first pressing jig in a roller-like shape, having an outer peripheral surface being a contact surface to be brought into contact with one surface of the single board, the outer peripheral ...

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Номер записи: 29
18-02-2021 дата публикации

METHOD FOR PRODUCING WOOD FIBERBOARDS

Номер: US20210046668A1
Автор: Both Sabine, Feßenbecker Achim, Leifeld Ferdinand
Принадлежит:

The disclosure relates to a method for the production of wood fiberboards such as MDF boards. 1. A method for the production of wood fiberboards , comprising the following steps:a) crushing wood into wood chips,b) hydrothermally pretreating the wood chips with steam in a pre-steaming bin at a temperature of 100 to 180° C. and a pressure of 1 to 10 bar,c) grinding the pre-treated wood chips into fine wood particles in a refiner in a presence of steam at a temperature of 150 to 200° C. and a pressure of 4.5 to 16 bar,d) gluing and drying the fine wood particles, wherein the drying of the fine wood particles can also be carried out prior to gluing,e) forming mats from bonded fibers and precompacting the mats,f) pressing the glued and dried fine wood particles at a temperature of 170 to 240° C. into wood fiberboards,wherein at least one of steps d) to e) is carried out in a presence of one or a plurality of surfactants.2. The method according to claim 1 , wherein step d) is carried out in the presence of one or a plurality of surfactants.3. The method according to claim 1 , wherein step e) is carried out in the presence of one or a plurality of surfactants.4. The method according to claim 1 , wherein the surfactants are anionic or nonionic surfactants.5. The method according to claim 1 , wherein an amount of surfactants in step c) is 0.05 to 5% by weight based on bone-dry wood.6. The method according to claim 1 , wherein the fine wood particles are reductively bleached.7. The method according to claim 1 , wherein the wood fiberboards are a medium-density fiberboards.8. The method according to claim 1 , wherein the surfactants are selected from fatty alcohol ether sulfates with branched and/or unbranched Cto Calkyl chains and 2 to 50 ethylene oxide units.10. The method according to claim 1 , wherein the surfactants are selected from C-Calkyl ethoxylates with 3 to 20 ethylene oxide units.11. The method according to claim 1 , wherein the surfactants are selected from alkyl ...

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Номер записи: 30
19-02-2015 дата публикации

Method for analyzing a cork stopper for the presence of 2,4,6-trichloroanisole and device for performing the same

Номер: US20150047414A1
Автор: Jean-Michel Riboulet, Luiz Armando Dos Reis Alves
Принадлежит: CEVAQOE INVEST

A non-destructive method for analyzing a cork stopper for the presence of 2,4,6-trichloroanisole. The stopper is introduced into a hermetically closed container. The container containing the stopper is heated under conditions vaporizing any 2,4,6-trichloroanisole present in the stopper. A gaseous sample of the atmosphere surrounding the stopper in the container is collected and analyzed for the presence of 2,4,6-trichloroanisole. This method allows the selection, in a batch of cork stoppers, of the stoppers that are substantially free of 2,4,6-trichloroanisole, in a non-destructive manner.

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Номер записи: 31
19-02-2015 дата публикации

MULTILAYER FLEXIBLE ELEMENT, PREFERABLY MADE OF WOOD, AND RELATED PRODUCTION PROCESS BY LASER ENGRAVING AND/OR CUTTING

Номер: US20150050454A1
Автор: Antonelli Marcello, Antonelli Marta
Принадлежит: MYMANTRA S.R.L.

Multilayer flexible element (), preferably made of wood, and related production process () by laser engraving and/or cutting, preferably applied in fashion, furniture and design industries, characterized in that said element is composed of:—a layer of rigid material (), supplied in sheets or plates, preferably made of wood;—a layer of flexible support material (), in example a tissue, onto which is connected said layer of rigid material ();—means of connection () of said layer of rigid material () to said layer of flexible support material (), in example by glue, characterized by high elasticity and resistance to temperature changes;—a texture in vector graphics () which will define the cutting of the workpiece material, his flexibility and the consequent modeling and softness; wherein said process () comprises the following steps:—connection () of said layer of rigid material () to said layer of flexible support material (), in example by glue;—design () of said texture in vector graphics (), and download into a control system of an industrial device suitable to generate and focus a high power laser beam;—engraving () and/or cutting of said layer of rigid material (), guided by the above- mentioned texture (), by fusion and high temperature evaporation caused by a laser beam; in order to make flexible some rigid materials, like in example wood and similar materials, and suitable as decorative and/or functional elements for covering in fashion, furniture and design industries.

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Номер записи: 32
03-03-2022 дата публикации

BAMBOO STRIP SHAPING DEVICE AND METHOD

Номер: US20220063126A1
Автор: LI Yanjun, Lou Zhichao, WANG Xinzhou, ZHANG HAIYANG
Принадлежит:

Disclosed is a bamboo strip shaping method, which includes the following steps: S01: cutting a bamboo tube, and removing inner joints, outer joints and bamboo outer skin; S02: trisecting or quartering the bamboo tube in a longitudinal direction to obtain curved bamboo strips; S03: placing the curved bamboo strips in a bamboo strip shaping device for processing; S04: subjecting the curved bamboo strips to steam treatment and heating softening treatment; S05: pressing and shaping the curved bamboo strips to obtain flattened bamboo strips, and drying for a first time under a maintained pressure; S06: wetting bamboo outer skin surfaces and bamboo inner skin surfaces of the flattened bamboo strips, and drying for a second time; and S07: wetting the bamboo outer skin surfaces and the bamboo inner skin surfaces of the flattened bamboo strips, and drying for a third time.

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Номер записи: 33
19-02-2015 дата публикации

ACETYLATED WOOD

Номер: US20150051384A1
Автор: Alexander Jonathan Philip, Bongers Hendrikus Petrus Maria
Принадлежит: TITAN WOOD LIMITED

Disclosed is acetylated wood comprising one or more end grain surfaces, wherein the wood is selected from the species Red Alder and European Alder. The acetylation of these wood species surprisingly result s in a lowering of the water absorption by immersion at an end-grain surface. Thus, acetylation can be used for the purpose of lowering the water absorption by immersion at an end-grain surface of wood selected from the group consisting of Red Alder and European Alder. The invention also pertains to wood having tangential surfaces, showing a surprising extent of aggregate rays. Further disclosed is a method of providing stable discoloured acetylated Red Alder [and European Alder], comprising a step of subjecting the acetylated wood to UV exposure. 1. Acetylated wood comprising one or more end grain surfaces , wherein the wood is selected from the species Red Alder and European Alder.2. Acetylated wood in accordance with claim 1 , in the form of a beam or board.3. A wood product selected from the group consisting of doors claim 1 , windows claim 1 , decking claim 1 , cladding (siding) claim 1 , outdoor furniture claim 1 , and boat decking claim 1 , wherein the wood is acetylated wood according to .4. The use of acetylation for the purpose of lowering the water absorption by immersion at an end-grain surface of wood selected from the group consisting of Red Alder and European Alder.5. The use of wood selected from the group consisting of Red Alder and European Alder claim 1 , for the purpose of providing acetylated wood that shows a lower water absorption than the corresponding native wood.6. Acetylated wood comprising one or more tangential surfaces claim 1 , wherein the wood is selected from the species Red Alder and European Alder.7. Acetylated wood selected from the species Red Alder and European Alder claim 1 , obtainable by subjecting the acetylated wood to UV exposure at a level of outdoor exposure for a period of one week to one month. The invention is in ...

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Номер записи: 34
08-05-2014 дата публикации

SPRAYING SYSTEMS AND METHODS FOR THE APPLICATION OF COATING FLUIDS ONTO CELLULOSIC MIXTURES

Номер: US20140127413A1
Автор: Forsthoefel Chad M., Hetzer James A., Kreimer Phil, McGuire Walter J.
Принадлежит:

A spraying system may be used for applying a coating fluid onto a cellulosic mixture. The spraying system may include a conveyor and spraying apparatus. The conveyor may include a cellulosic mixture contacting surface and may be moveable in a conveying direction. The spraying apparatus may be operable to deliver coating fluid towards the cellulosic mixture contacting surface. The spraying apparatus may include at least one primary spray nozzle and at least one secondary spray nozzle. Each of the at least one primary spray nozzles may be oriented such that it can deliver the coating fluid in a first spray generally opposite the conveying direction. Each of the at least one secondary spray nozzles may be oriented such that it can deliver the coating fluid in a second spray generally concurrent with the conveying direction. 1. A spraying system for applying a coating fluid onto a cellulosic mixture , the spraying system comprising:a conveyor comprising a cellulosic mixture contacting surface, the conveyor moveable in a conveying direction; anda spraying apparatus operable to deliver coating fluid towards the cellulosic mixture contacting surface, wherein the spraying apparatus comprises at least one primary spray nozzle and at least one secondary spray nozzle;wherein:the cellulosic mixture contacting surface is substantially flat;each of the at least one primary spray nozzles is oriented such that it can deliver the coating fluid in a first spray at an angle of between about 15° and about 80° relative to a line that is normal to the cellulosic mixture contacting surface, each of the at least one primary spray nozzles also being oriented such that it can deliver the coating fluid in the first spray in a direction generally opposite the conveying direction;each of the at least one secondary spray nozzles is oriented such that it can deliver the coating fluid in a second spray at an angle of between about 15° and about 80° relative to a line that is normal to the ...

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Номер записи: 35
08-05-2014 дата публикации

System and Methods for Edge Sealing Medium Density Fiberboard (MDF) and Other Engineered Wood Laminates Using Powder and Liquid Coatings

Номер: US20140127417A1
Автор: Chapman Michael J.
Принадлежит:

The present invention has to do with a method and system for coating and curing engineered wood products (EWP) in general, and the edges of EWPs in particular. One method for coating and curing medium density fiberboard (MDF) and other engineered wood laminates using coatings is provided. 1. A production line for producing coated engineered wood products (EWP) having a plurality of edges and faces , the production line comprising:a preheating station;a top-coating station for coating the heated EWP in approximately 1.5 minutes;a cure oven station for curing the coated EWP; anda conveyor track system for transporting the EWP to the preheating station, from the preheating station to the top-coating station, from the top-coating station to the cure oven station, from the cure oven station to an unload station.2. The production line as in wherein the preheating station further comprises an infrared oven for heating the EWP to substantially 200 degrees Fahrenheit in approximately 1.5 minutes.3. The production line as in wherein the cure oven station further comprises a second infrared oven for heating the coated EWP to substantially 300 degrees Fahrenheit in approximately 5.5 minutes.4. The production line as in further comprising:a primer station for electrostatically pre-coating the EWP in approximately 1.5 minutes;a gel oven station; andthe conveyor track system for transporting the EWP from the preheating station to the primer station, from the primer station to the gel oven station, from the gel oven station to the top-coating station.5. The production line as in claim 4 , wherein the gel oven station further comprises a third infrared oven for heating the coated EWP to substantially 300 degrees Fahrenheit causing the coating to gel or partially liquefy.6. The production line as in further comprising a pre-edge coating station for edge coating at least one of the plurality of EWP edges claim 1 , the pre-edge coating station comprising;a grounded platform for ...

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Номер записи: 36
13-02-2020 дата публикации

METHODS FOR ENHANCING THE PRESERVATION OF CELLULOSIC MATERIALS AND CELLULOSIC MATERIALS PREPARED THEREBY

Номер: US20200047370A1
Автор: Brimhall Daniel
Принадлежит: American Chemet Corporation

Methods for treating cellulosic materials comprising introducing a liquid treating composition into the cellulosic material, the treating composition comprising a solution prepared from at least: (i) one or more of a copper amine complex or copper amine complex, such as copper tetraamine carbonate, (ii) one or more of ammonia or a water-soluble amine and (iii) water; and exposing the cellulosic material provided thereby to carbon dioxide and/or carbonic acid to provide treated cellulosic material, and treated cellulosic materials prepared thereby. 177.-. (canceled)78. A method for treating cellulosic material comprising:(a) introducing the cellulosic material to be treated into a vessel;(b) introducing a treating composition into the vessel in an amount sufficient to immerse the cellulosic material therein, and thereafter providing a pressure within the vessel of about 1 to about 300 psi, wherein the treating composition is an aqueous alkaline copper-containing solution comprising about 0.01 wt. % to about 10 wt. % copper tetraammine carbonate, the treating composition optionally further comprising one or more of an insecticide, mold inhibitor, algaecide, bactericide, water repellant, colorant or corrosion inhibitor,(c) removing from the vessel any treating solution not introduced into the cellulosic material after immersion for about 1 to about 300 minutes by pulling a vacuum within the vessel of up to about 30 in. Hg for about 1 to about 60 minutes;(d) introducing carbon dioxide into the vessel and thereafter maintaining the pressure in the vessel at no more than about 10 psi, wherein the carbon dioxide is resident in the vessel for about 1 to about 60 minutes; and(e) removing the treated cellulose material from the vessel.79. The method according to claim 78 , wherein the treating composition comprises about 0.05 wt. % to about 5 wt. % copper tetraammine carbonate.80. The method according to claim 78 , wherein the vessel pressure in step (b) is from about 75 psi ...

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Номер записи: 37
14-02-2019 дата публикации

Optical detection of fluorescent liquid from a wood fibre web

Номер: US20190049381A1
Автор: Ritoniemi Jari, Ritoniemi Markus
Принадлежит: Procemex Oy

“The invention relates to a method, comprising illuminating an area of a wood fibre web by directing ultraviolet light to an area of the web by an ultraviolet light source, capturing an image of at least part of the illuminated area by an imaging device comprising a colour filter, transmitting image data of the captured image to an image data processing device, and analysing if the captured image comprises a fluorescent liquid stain emitting fluorescent light passed through the colour filter. The invention further relates to a machine vision system and a computer program product for detecting fluorescent liquid stains from a wood fibre web.” 1. A method for detecting fluorescent liquid stains from a wood fibre web , caused by a machine liquid leak of a machine , comprising:using fluorescent liquid in the machine producing the wood fibre web;illuminating an area of the wood fibre web by directing ultraviolet light to an area of the web by an ultraviolet light source;capturing an image of at least part of the ultraviolet illuminated area by an imaging device comprising a band pass colour filter;transmitting image data of the captured image to an image data processing device; andanalysing if the captured image comprises a fluorescent liquid stain emitting fluorescent light passed through the colour filter and simultaneously detecting non-fluorescent defects.2. A method according to claim 1 , wherein the method further comprises:illuminating the area of the wood fibre web by directing non-ultraviolet light to the area of the web by a non-ultraviolet light source after capturing the image illuminated by the ultraviolet light source;capturing an image of at least part of the non-ultraviolet illuminated area by the imaging device; andanalysing if the captured non-ultraviolet illuminated image comprises a non-fluorescent defect.3. A method according to or claim 1 , wherein every other captured image is illuminated with the ultraviolet light and every other with the non- ...

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Номер записи: 38
03-03-2016 дата публикации

Manufacturing Method for a High Durability, High Insulating Composite Timber Member and a Composite Timber Member

Номер: US20160059436A1
Автор: Borg Finn, Kristensen Lars Højmann
Принадлежит:

The present invention describes a method for thermo-treatment of wood, where said method comprises the following steps: 1. Manufacturing method for obtaining a high durability , high insulating composite timber member , where said method comprises the following steps:a. Introducing wood to be treated into a treatment unit;b. Increasing the temperature and/or pressure to a first elevated level inside the treatment unit and maintaining said first elevated temperature for a pre-determined period of time;c. Decreasing the temperature and/or pressure to a certain lower level for a certain predetermined period of time;d. Retrieving and storing the treated wood.2. The manufacturing method according to where said method comprises the following steps:a1) selecting the wood to be treated to be as free from knots as possibleb1) in step b) introducing the wood to a temperature increase, said first elevated temperature level being in the range of 170° C. to 175° C.;c1) maintaining the wood at an ambient temperature in the range of 170° C. to 175° C. for between 45 minutes and up to 6 hours;d1) in step c) decreasing the temperature to said lower level in the range of approx. 20° C. to 60° C.;e1) before step d) introducing the wood into an autoclave or if the treatment unit is suitable, and applying a mixture of linseed oil and mineral oil to the wood, and allowing the mixture to penetrate the wood.3. The method according to wherein before or at the same time as step b claim 1 , replacing the air and vapor inside the treatment chamber with an inert gas.4. The method according to wherein the pressure of the inert gas introduced into the treatment unit is maintained at a pressure higher than the vapor pressure inside the wood to be treated.5. The method according to wherein the pressure of the inert gas introduced into the treatment unit is maintained at a pressure higher than the boiling point of the water in the wood.6. The method according to wherein the pressure of the inert gas ...

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Номер записи: 39
21-02-2019 дата публикации

MANUFACTURING APPARATUS FOR DELAMINATING BAMBOO INTO FIBER AND METHOD THEREOF

Номер: US20190054649A1
Автор: LIN Maoyang, YAO Wenbing, Yao Yao, Zhou Chao
Принадлежит:

A manufacturing apparatus for delaminating a bamboo into fiber and a method thereof are disclosed. The manufacturing apparatus includes a machine frame, a machine seat, a machine cover matched with the machine seat, a machine cover rail, a push plate, a push rail, at least one power source for sliding the push plate, and at least one elastic member. The manufacturing apparatus has a relatively simple structure and is easy for operation, use, and promotion. The manufacturing method using the manufacturing apparatus is simple in production process, high in efficiency, and free from pollution. The obtained bamboo fiber has good elasticity, good toughness, fine fiber fineness and uniformity, that is, the present invention can quickly and efficiently produce high-quality bamboo fiber, greatly saving the production time of bamboo fiber, improving the production efficiency, and reducing the production cost. 1. A manufacturing apparatus for delaminating a bamboo into fiber , comprising a machine frame , a machine seat , a machine cover matched with the machine seat , a machine cover rail , a push plate , a push rail , at least one power source for sliding the push plate , and at least one elastic member;the machine seat being disposed at a middle portion of the machine frame, a top of the machine seat being provided with a plurality of juxtaposed grooves and a first heating assembly, the first heating assembly being embedded in the machine seat and located under the grooves; a bottom of the machine cover being provided with a plurality of ribs and a second heating assembly, the ribs corresponding in position and in number to the grooves, the second heating assembly being embedded in the machine cover and located above the ribs;the machine cover rail and the push rail being arranged on the machine frame respectively, the machine cover being slidably fitted on the machine cover rail, a left side of the machine cover being a curved surface, the curved surface having a radius ...

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Номер записи: 40
21-02-2019 дата публикации

MODIFIED WOOD PRODUCT AND A PROCESS FOR PRODUCING SAID PRODUCT

Номер: US20190054650A1
Автор: Mayes Duncan, Pynnönen Janne, STÖD Reeta-Maria
Принадлежит: STORA ENSO OYJ

The present invention relates to a process for preparing a modified wood product wherein a step of resin treatment is followed by a thermal modification step. The present invention also relates to a modified wood product produced using said process. 1. A process for preparing modified wood comprising the steps ofa. resin treatment of solid wood having a moisture content of at least 10%, wherein the resin solution comprises at least one of the group consisting of phenol formaldehyde, phenol urea formaldehyde, a melamine resin, lignin, tannin or a mixture thereof, followed byb. a thermal modification step wherein the wood is heated at a temperature of from 160° C. to 230° C. at atmospheric pressure.2. A process according to claim 1 , wherein the thermal modification step takes place in an essentially oxygen-free environment.3. A process according to claim 1 , wherein the thermal modification step is carried out at a pressure higher than atmospheric pressure.4. A process according to claim 1 , wherein the wood has a moisture content of about 12%.5. A process according to claim 1 , wherein the wood has a moisture content of approximately the fiber saturation point.6. A process according to any one of claim 1 , wherein the resin is phenol-formaldehyde.7. A modified wood product obtainable by the process according to .8. A modified wood product according to claim 7 , wherein the wood is softwood.9. A process for preparing modified wood comprising the steps ofa. resin treatment of solid wood having a moisture content of at least 10%, wherein the resin solution comprises at least one of a group consisting of phenol formaldehyde, phenol urea formaldehyde, a melamine resin, lignin, tannin or a mixture thereof, followed byb. a thermal modification step wherein the wood is heated at a temperature of from 120° C. to 230° C. at a pressure higher than atmospheric pressure.10. A process according to claim 9 , wherein the thermal modification step takes place in an essentially ...

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Номер записи: 41
17-03-2022 дата публикации

METHOD FOR MANUFACTURING TRANSPARENT HEAT-INSULATION BUILDING MATERIAL BASED ON WASTE WOOD

Номер: US20220080616A1
Автор: Gao Yong, LI Shouyuan, LIN Weiqiang, ZHENG Fujun, ZHU Hangli
Принадлежит: ZHEJIANG PENGYUAN NEW MATERIAL TECHNOLOGY GROUP CO., LTD.

This application relates to the technical field of building material processing, and more particularly, to a method for manufacturing a transparent heat-insulation building material based on waste wood. The method includes the following steps of: step S, wood pretreatment, step S, wood acetylation treatment, step S, resin impregnating, and step S, hot press molding to obtain a densified wood. 1. A method for manufacturing a transparent heat-insulation building material based on waste wood , comprising the following steps of:{'b': '1', 'step S, wood pretreatment comprising the following steps{'b': 1', '1, 'step S., ventilating and drying the waste wood at normal temperature until the water content is 3%-7%;'}{'b': 1', '2, 'step S., immersing the dried waste wood in a hydrogen peroxide solution, and heating; and'}{'b': 1', '3', '1', '2, 'step S., adding a complexing agent solution into the solution obtained in the step S., heating, then adding a buffering agent solution, stirring, and reacting for 0.8 h-1.2 h, taking out the reacted wood, washing and drying until the water content is 3%-7%, to obtain the pretreated wood;'}{'b': '2', 'step S, wood acetylation treatment comprising the following steps{'b': 2', '1, 'step S., loading the pretreated wood into a pressure vessel, and evacuating until a degree of vacuum is 0.75 atm-0.85 atm;'}{'b': 2', '2, 'step S., adding acetylation fluid into the pressure vessel, while reducing the pressure of the vessel to the degree of vacuum of less than or equal to 0.7 atm, and keeping for 3-4 h; and'}{'b': 2', '3, 'step S., pressurizing the pressure vessel until the gauge pressure is 10 atm, raising the temperature to 100° C.-130° C., and keeping for 1-2 h;'}{'b': '3', 'step S, resin impregnating comprising the following steps{'b': 3', '1, 'step S., adding 4-6 parts by mass of antimony tin oxide nanoparticles into 25-30 parts by mass of a methyl methacrylate monomer solution, and heating to 75° C.-85° C.; then adding 60-65 parts by ...

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Номер записи: 42
11-03-2021 дата публикации

METHODS AND SYSTEMS FOR RECOVERING TERPENE COMPOSITIONS FROM WOOD DRYING EXHAUST

Номер: US20210069929A1
Автор: Arduino Jim P, Cowles Hal R, Otwell Lawrence P, Prout Stephen Douglas, Sniady Adam Krzysztof, Tutin Kim Kristine
Принадлежит:

Methods and systems for recovering terpenes and controlling the composition of terpenes collected from wood drying processes are provided. In particular, a sorbent having adsorbed materials, including terpenes, from a wood drying process can be desorbed in a desorber, resulting in a gaseous stream containing terpenes, which can be condensed and collected from the gaseous stream. The conditions of desorption can be controlled to ensure a desirable amount of alpha-pinene and beta-pinene relative to other terpenes, such as dipentene and camphene, in the collected terpenes. 1. A method of controlling a composition of terpenes collected from a wood drying process , comprising:a. providing a sorbent having adsorbed materials from the wood drying process at a first temperature;b. heating the sorbent to a second temperature to release the adsorbed materials into a gaseous stream comprising terpenes; andc. collecting a terpene stream from the gaseous stream, wherein the terpene stream comprises alpha-pinene and/or beta-pinene,wherein an amount of volatile organic compounds in the exhaust stream is reduced by at least about 90%.2. The method of claim 1 , wherein the second temperature is less than about 450° F.3. The method of claim 2 , wherein the terpene stream comprises from about 0 wt-% to about 100 wt-% alpha-pinene and from about 0 wt-% to about 50 wt-% beta-pinene.4. The method of claim 3 , wherein the terpene stream comprises from about 1 wt-% to about 20 wt-% alpha-pinene and from about 0 wt-% to about 20 wt-% beta-pinene.5. The method of claim 1 , further comprising maintaining the sorbent at the second temperature for less than about 2 hours.6. The method of claim 5 , wherein the sorbent is maintained at the second temperature for from about 30 minutes to about 1.5 hours.7. The method of claim 5 , wherein the second temperature is less than about 430° F.8. The method of claim 5 , wherein the second temperature is from about 390° F. to about 420° F.9. The method of ...

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Номер записи: 43
29-05-2014 дата публикации

Method of wood preservation using expiration control

Номер: US20140147640A1
Автор: Santoso Budi
Принадлежит: Karuna Sumber Jaya PT

A method to preserve packed wood by expiration controlling consists of following steps: to clean/smooth surface of packed wood by a cleaner/by sanding said wood surface; to dry moisture of clean packed wood by heating in a high temperature oven; to assemble/manufacture a packed wood according to designed/required shape; to immunize wood preservatives by dipping in pool contains preservation liquid in certain dosage; to dry by draining the preservatives of packed wood that dipped in said preservation liquid pool; and to put security symbols on packed wood before shipping/distribution.

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Номер записи: 44
15-03-2018 дата публикации

WOOD DRYING AND PRESERVATION METHODS

Номер: US20180071944A1
Автор: Alley Nigel J., Curran Seamus, Haldar Amrita, Liao Kang-Shyang, Maharjan Surendra
Принадлежит: UNIVERSITY OF HOUSTON SYSTEM

The new methods for treating green wood discuss herein speed up air drying of common green wood, including both softwood and hardwood. This method involves treating and altering the green wood with a base solution, and subjecting the wood to an air drying process. The new methods require less time to dry the green wood to a desired water content. In addition, other additives may be included in the base solution such as miscibility solvent(s), preservative(s), solubilizer(s)/stabilizer(s), chelating agent(s), bonding agent(s), pigment(s), UV protective, anti-oxidant, anti-fungal, anti-microbial and/or anti-insect chemical(s). The base solution solution may also slow down the wood deterioration caused by physical, chemical and biological sources under ambient conditions. 1. A method for treating green wood , the method comprising:treating the green wood with a first solution, wherein the first solution comprises at least one miscibility solvent and a solubilizer or a stabilizer; andair drying the green wood after treating the green wood with the first solution.2. The method of claim 1 , wherein the miscibility solvent is selected from Acetone claim 1 , Acetonitrile claim 1 , tent-Butanol claim 1 , Carbon tetrachloride claim 1 , Chloroform claim 1 , Cyclohexane claim 1 , Cyclopentane claim 1 , Dichloromethane claim 1 , Diethyl ether claim 1 , Ethanol claim 1 , Ethyl acetate claim 1 , Ethyl ether claim 1 , Ethylene dichloride claim 1 , Heptane claim 1 , n-Hexane claim 1 , Methanol claim 1 , Methylene chloride claim 1 , Methyl tent-butyl ether claim 1 , Pentane claim 1 , Petroleum ethers claim 1 , Isopropanol claim 1 , n-Propanol claim 1 , Tetrahydrofuran or a mixture thereof.3. The method of claim 2 , wherein the solubilizer or the stabilizer is selected from at least one alkoxysilane claim 2 , metal oxide precursor or a combination thereof having a general formula of M(OR)(M=Si claim 2 , Al claim 2 , Ti claim 2 , In claim 2 , Sn or Zr) claim 2 , where R comprises ...

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Номер записи: 45
07-03-2019 дата публикации

CELLULOSIC AND LIGNOCELLULOSIC STRUCTURAL MATERIALS AND METHODS AND SYSTEMS FOR MANUFACTURING SUCH MATERIALS

Номер: US20190070471A1
Автор: Medoff Marshall
Принадлежит:

Methods of treating wood and wood products include irradiating untreated wood having a first molecular weight with ionizing radiation to cause an increase in the molecular weight of a cellulosic component of the wood to a second, relatively higher molecular weight. 1. A method of processing wood to produce a finished product , the method comprising:debarking logs to produce debarked logs;sawing the debarked logs to produce sawn lumber;edging the sawn lumber to produce edged lumber;trimming the edged lumber to produce trimmed lumber;manufacturing the finished product from the trimmed lumber; andduring the method, irradiating, with a dose of X-rays, gamma rays, electrons or particles heavier than electrons effective to increase the flexural strength and/or the tensile strength of the finished product, one or more of the debarked logs, the sawn lumber, the edged lumber, the trimmed lumber and the finished product.2. The method of claim 1 , wherein irradiating is by gamma rays.3. The method of claim 1 , wherein irradiating is by electrons.4. The method of claim 1 , wherein irradiating is by X-rays.5. The method of claim 3 , wherein the electrons are delivered by electron beam radiation.6. The method of claim 1 , wherein irradiating is by particles heavier than electrons.7. The method of claim 6 , wherein the particles are positively charged.8. The method of claim 6 , wherein the particles are negatively charged.9. The method of claim 1 , further comprising quenching radicals in one or more of: debarked logs that have been irradiated claim 1 , sawn lumber that has been irradiated claim 1 , edged lumber that has been irradiated claim 1 , trimmed lumber that has been irradiated claim 1 , and the finished product that has been irradiated.10. The method of claim 9 , wherein quenching radicals is by contact with a gas comprising nitrogen claim 9 , oxygen claim 9 , acetylene claim 9 , ethylene claim 9 , a chlorinated ethylene claim 9 , a chlorofluoroethylene claim 9 , or ...

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Номер записи: 46
07-03-2019 дата публикации

Process for Producing Wood-Based OSBs Having Reduced Emission of Volatile Organic Compounds (VOCs)

Номер: US20190070747A1
Автор: KALWA Norbert, Pfeiffer Sabrina
Принадлежит:

A process for treating wood strands suitable for producing OSBs includes treating the wood strands in water at a temperature in the range from 50° C. to 100° C. The present invention likewise relates to a process for producing wood-based OSBs, in particular wood-based OSBs having reduced emission of volatile organic compounds (VOCs), including: a) production of wood strands from suitable timbers; b) treatment of at least part of the wood strands with water; c) drying of the wood strands which have been treated with the water; d) coating of the wood strands which have been treated with water and dried and coating of wood strands which have not been treated with water with at least one binder; e) scattering of the glue-coated wood strands on a conveyor belt; and f) pressing of the glue-coated wood strands to give a wood-based OSB. 1. A process for treating wood strands suitable for producing OSBs , comprising:treating wood strands in water having a temperature in the range from 50° C. to 100° C.2. The process according to claim 1 , wherein the treatment of the wood strands with water is carried out for a time of from 10 to 60 minutes.3. The process according to claim 1 , wherein the wood strands are covered completely by the water during the treatment.4. The process according to claim 1 , wherein the wood strands are conveyed continuously on at least one transport device through an apparatus containing the water for the water treatment.5. The process according to claim 4 , comprising discharging the water from the apparatus after passage of the wood strands.6. The process according to claim 5 , comprising purifying the water discharged from the apparatus and recirculating the purified water into the apparatus.7. An apparatus for treating wood strands with water according to claim 1 , comprising:at least one vessel filled with water;at least one transport device for transporting the wood strands through the vessel; andat least one apparatus for dipping the wood strands ...

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Номер записи: 47
24-03-2022 дата публикации

Wood article and process for the preparation of the wood article

Номер: US20220089839A1
Автор: Gang Duan, Shigang Fan, Xi Zhao
Принадлежит: Guangdong Huarun Paints Co Ltd

The present disclosure relates to a wood article and a process for preparing the wood article. In particular, the present disclosure relates to a wood article comprising a wood substrate comprising acidic substances and having at least one major surface; an adhesion promoting layer directly applied on the major surface of the wood substrate; and a Michael Addition curing coating applied on the adhesion promoting layer, wherein the adhesion promoting layer is formed by a composition comprising a functional silane comprising amino and/or imino functional groups; and wherein the Michael Addition curing coating is formed from a two-component curable coating composition.

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Номер записи: 48
18-03-2021 дата публикации

METHOD FOR DRYING WOOD USING MICROWAVE

Номер: US20210080178A1
Автор: KIM Hyun Seung, PARK Chan Il, PARK Su Hun
Принадлежит: PACEP CO., LTD.

The present invention relates to a method for drying wood by using microwaves. The method for drying wood by using microwaves, according to an embodiment of the present invention, comprises the steps of: preparing wood; wrapping at least a portion of the wood by using a wrapping member; applying microwaves to the wood wrapped with the wrapping member to raise the temperature inside the wrapping member; removing the wrapping member from the wood wrapped with the wrapping member; and drying moisture of an outer layer of the wood from which the wrapping member has been removed. 1. A method for drying wood by using microwaves , the method comprising the steps of:preparing wood;wrapping at least a portion of the wood by using a wrapping member;applying microwaves to the wood wrapped with the wrapping member to raise a temperature inside the wrapping member;removing the wrapping member from the wood wrapped with the wrapping member; anddrying moisture of an outer layer of the wood from which the wrapping member has been removed.2. The method of claim 1 , wherein claim 1 , in the step of applying microwaves to the wood wrapped with the wrapping member to raise a temperature inside the wrapping member claim 1 , the microwaves applied from an outside penetrate into the wrapping member such that the microwaves are incident into an inside of the wrapping member.3. The method of claim 1 , wherein claim 1 , in the step of applying microwaves to the wood wrapped with the wrapping member to raise a temperature inside the wrapping member claim 1 , the wrapping member forming a moisture film between an outer skin of the wood and the wrapping member.4. The method of claim 1 , wherein the wrapping member includes at least one of polyvinyl chloride (PVC) claim 1 , polyethylene (PE) claim 1 , ethylene vinyl acetate (EVA) copolymer claim 1 , ethylene-octene copolymer (POE) claim 1 , polypropylene (PP) claim 1 , oriented polypropylene (OPP) claim 1 , polyethylene terephthalate (PET) claim ...

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Номер записи: 49
22-03-2018 дата публикации

METHOD FOR CONTINUOUS ACETYLATION OF WOOD ELEMENTS

Номер: US20180079104A1
Автор: Benstead Stephen John, KAPPEN Theodorus Gerardus Marinus Maria
Принадлежит:

The present invention relates to a method for continuous acetylation of wood elements. The acetylation is conducted with an acetylation medium at a pressure of at least 1.5 barg in a substantially oxygen free environment. Alternatively, the method according to the invention comprises the steps of: (a) feeding wood elements in a substantially oxygen free environment to a continuous acetylation reactor, and (b) treating the wood elements with an acetylation medium in the continuous acetylation reactor under wood acetylation reaction conditions, at a pressure of at least 1.5 barg. 1. Method for continuous acetylation of wood elements , wherein the acetylation is conducted with an acetylation medium under wood acetylation reaction conditions at a pressure of at least 1.5 barg in a substantially oxygen free environment.2. Method for continuous acetylation of wood elements comprising the steps of:(a) feeding wood elements in a substantially oxygen free environment to a continuous acetylation reactor,(b) treating the wood elements with an acetylation medium in the continuous acetylation reactor under wood acetylation reaction conditions, at a pressure of at least 1.5 barg.3. The method according to claim 2 , wherein the oxygen content in the acetylation reactor is less than 0.8 vol. %.4. The method according to claim 2 , wherein the oxygen content of the wood elements fed to the acetylation reactor is less than 0.8 vol. %.5. The method according to claim 1 , comprising removing oxygen from the wood elements before the acetylation reaction claim 1 , preferably by applying vacuum level of 100 mbar or less to the wood elements.6. The method according to claim 2 , wherein the acetylation medium is supplied to the reactor in both gaseous and liquid form.7. The method according to claim 6 , wherein the liquid is contacted with the wood elements claim 6 , preferably by spraying.8. The method according to claim 5 , wherein the wood elements after the removal of oxygen are brought ...

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Номер записи: 50
02-04-2015 дата публикации

Solvent recovery

Номер: US20150090158A1
Автор: Nigel Paul Maynard
Принадлежит: Koppers Performance Chemicals Inc, MATTERSMITHS TECHNOLOGIES Ltd

This invention relates to compositions for, and methods of, delivering treatment compounds to lignocellulosic substrates, wherein the solvent is recovered using RF energy.

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Номер записи: 51
21-03-2019 дата публикации

Solvent-borne wood preservative compositions

Номер: US20190084182A1
Автор: Jun Zhang, Md S. Islam
Принадлежит: Koppers Performance Chemicals Inc

Wood preservative compositions comprising a particulate copper compound in a solvent carrier with low aromatic content. Particulate copper dispersions in this composition demonstrated superior stability, and wood treated with the composition is protected from attack by wood decay fungi and termites. The invention is also directed to wood preservative compositions comprising: (a.) a biodegradable organic solvent carrier selected from the group consisting of vegetable oil, renewable resource oil, and biodiesel; (b.) a dispersion of solid particles of a metal compound having a particle size between about 0.005 microns to about 10 microns; (c.) an organic biocide; and (d.) a dispersant; ratio of the dispersant to the metal compound is from about 1:500 to about 100:1 (wt/wt). The invention is also directed to compositions comprising penflufen and solvent carriers. The invention is also directed to methods of treating wood using the compositions, and wood treated with the disclosed compositions and methods.

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Номер записи: 52
30-03-2017 дата публикации

Method for producing a wood product by means of hot pressing and use of method

Номер: US20170087741A1
Автор: Matti Kukkonen
Принадлежит: Individual

A Method of producing a wooden product by means of a molding hot-pressing from a wooden blank which has one or several sections (A, B, C, D). Wherein as a material is selected an optional form of sawn timber or another timber, which is preferably selected from the group consisting of fresh sawn timber, dried timber, saw-surfaced lumber, planed timber, heat-treated timber, sodium silicate water-glass impregnated or salt impregnated or otherwise impregnated timber; wherein molding hot-pressing is performed essentially in a single-stage production process, which includes drying and molding hot-pressing of the wooden blank and essentially concurrent treating of the wooden blank both by binders of the wood itself and by treating chemicals and/or treating materials added in the production process which are selected from the group consisting of surface treatment agents, excipients, primers, impregnating agents, adhesives, adhesive films, adhesive gauzes; wherein the treatment chemicals are attached to the production process by using a hot-pressing pressing plate etc., pressing tool or pressing surface; and wherein the wood material, and binders thereof as well as the treating chemicals are allowed to adapt/move in relation to each other in the cooling phase of the production process until the locking phase, whereby the product is completed.

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Номер записи: 53
05-05-2022 дата публикации

ARRANGEMENT FOR FEEDING WOOD PARTICLES INTO IMPREGNATING

Номер: US20220134595A1
Автор: Laitila Mika, Turunen Sami
Принадлежит:

An arrangement for feeding wood particles into an impregnating stage of a wood treatment process comprises a feed silo (), at least one impregnating vessel () for receiving wood particles into said impregnating stage, and two or more conveyors () between said feed silo () and said at least one impregnating vessel (), for transferring wood particles from said feed silo () to said at least one impregnating vessel (). Each of said conveyors () is a compressing conveyor for applying pressure to the wood particles on their way through the respective conveyor.

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Номер записи: 54
05-05-2022 дата публикации

PROCESS FOR PARTIAL DELIGNIFICATION AND FILLING OF A LIGNOCELLULOSIC MATERIAL, AND COMPOSITE MATERIAL STRUCTURE ABLE TO BE OBTAINED BY THIS PROCESS

Номер: US20220134596A1
Автор: BOITOUZET Timothée, DROGUET Benjamin
Принадлежит:

The invention relates to a process for treating a lignocellulosic material, e.g., wood, comprising the following steps: providing a lignocellulosic material; removing at least some but less than all lignin from the lignocellulosic material to yield a delignified structure; and densifying the delignified structure to yield the delignified, densified material, wherein the delignified, densified material is equal in size or is smaller in size relative to the lignocellulosic material provided; where densifying may include contacting said delignified structure, at least in part, with at least one fluid at a pressure greater than atmospheric pressure. The invention also relates to a composite structure able to be obtained in this way, and to any part comprising at least one such structure.

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Номер записи: 55
06-04-2017 дата публикации

CELLULOSIC AND LIGNOCELLULOSIC STRUCTURAL MATERIALS AND METHODS AND SYSTEMS FOR MANUFACTURING SUCH MATERIALS

Номер: US20170095942A1
Автор: Medoff Marshall
Принадлежит:

Methods of treating wood and wood products include irradiating untreated wood having a first molecular weight with ionizing radiation to cause an increase in the molecular weight of a cellulosic component of the wood to a second, relatively higher molecular weight. 1. A method of processing wood to produce a finished product , the method comprising:debarking logs to produce debarked logs;sawing the debarked logs to produce sawn lumber;edging the sawn lumber to produce edged lumber;trimming the edged lumber to produce trimmed lumber;manufacturing the finished product from the trimmed lumber; andduring the method, irradiating one or more of the debarked logs, the sawn lumber, the edged lumber, the trimmed lumber and the finished product.2. The method of claim 1 , wherein irradiating is by ionizing radiation.3. The method of claim 1 , wherein irradiating is by ultraviolet rays.4. The method of claim 2 , wherein the ionizing radiation is X-rays.5. The method of claim 2 , wherein the ionizing radiation is electron beam radiation.6. The method of claim 2 , wherein the ionizing radiation is by particles heavier than electrons.7. The method of claim 5 , wherein the particles are positively charged.8. The method of claim 5 , wherein the particles are negatively charged.9. The method of claim 1 , further comprising quenching radicals in one or more of:debarked logs that have been irradiated, sawn lumber that has been irradiated, edged lumber that has been irradiated, and the finished product that has been irradiated.10. The method of claim 9 , wherein quenching radicals is by contact with a gas comprising nitrogen claim 9 , oxygen claim 9 , acetylene claim 9 , ethylene claim 9 , a chlorinated ethylene claim 9 , a chlorofluoroethylene claim 9 , or propylene.11. The method of claim 1 , wherein irradiating is from multiple directions.12. The method of further comprising drying the sawn lumber to a moisture content of 6 to 18 weight percent water.13. The method of further ...

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Номер записи: 56
14-04-2016 дата публикации

METHOD FOR PRODUCING BOG (BLACK) OAK WOOD

Номер: US20160101539A1
Автор: Grigas Vytautas
Принадлежит: UAB "GRIGO"

The present invention implements a method to produce stained oak, having features identical or very close to a bog (black) oak wood found in wetlands. This method is based on the reaction of iron with the tannin present in the wood, and it comprises the following steps: placing the wood blank into a metal container; filling the container with water (or other suitable solvent), so that all the blanks are submersed; blending iron oxide into the solvent and producing the solution of iron oxide of a suitable concentration; heating the container to the desired temperature between 60 to 100 degrees Celsius; maintaining the temperature of the container for a certain period of time, depending on the dimensions of the blanks; compensating the water that was lost during the process due to evaporation by adding an additional amount of water; after the determined period of time or when the desired shade of wood (black, gray, blue, purple, or brown) is achieved and/or the desired density is reached; stopping the heating process and discharging the water from the tank; washing the blanks; drying the blanks in sawdust or using other desiccation means; and/or drying the blanks in convection or vacuum dryer, or using other similar means, until a needed moisture content is reached. 1. A method of producing wood having properties similar to bog oak wood , the method comprising:a) immersing a piece of wood in a solution comprising iron oxide and a solvent;b) retaining the piece of wood immersed in the solution, at a temperature between 60 and 100° C., until a moisture content of 50-80 percent in the piece of wood of is achieved;c) washing the piece of wood with water, after the piece of wood has been immersed in and processed with the solution; andd) drying the piece of wood after washing.2. The method according to claim 1 , wherein the drying the piece of wood after washing comprises drying the piece of wood in sawdust until a 30 percent moisture content in the piece of wood is ...

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Номер записи: 57
13-04-2017 дата публикации

Efficient Infrared Absorption System for Edge Sealing Medium Density Fiberboard (MDF) and Other Engineered Wood Laminates Using Powder and Liquid Coatings

Номер: US20170100730A1
Автор: Chapman Michael J
Принадлежит:

The present invention has to do with an efficient system for coating and curing engineered wood products (EWP) in general, and the edges of EWPs in particular. An efficient system for coating and curing coatings is provided. 113-. (canceled)14. A focused infrared apparatus for curing a primer coated edge , the apparatus comprising:at least one focused infrared (IR) emitter assembly, wherein the at least one focused IR emitter assembly is adaptable to emit IR energy substantially matched to a predetermined absorption characteristic of the primer; andwherein, the at least one focused IR emitter assembly is adaptable to emit a focused IR energy pattern substantially focused on the primer coated edge.15. The focused infrared apparatus as in wherein the at least one focused IR emitter assembly is adaptable to emit a focused IR energy pattern comprising substantially a 60 degree arc.16. The focused infrared apparatus as in wherein the at least one focused IR emitter assembly comprises:a pair of infrared emitters;a transmission medium, wherein the transmission medium comprises quartz glass; and 'a gold coating reflector.', 'a reflector, wherein the reflector comprises17. The focused infrared apparatus as in wherein the at least one focused IR emitter assembly comprises:a pair of infrared emitters;a transmission medium, wherein the transmission medium comprises quartz glass; and 'an opaque quartz glass reflector.', 'a reflector, wherein the reflector comprises18. An apparatus for edge curing engineered wood products (EWP) with trailing and leading edges and supported by a conveyor track claim 14 , the apparatus comprising: a first plurality of infrared emitters for emitting an IR energy field;', 'a first reflector adaptable to reflect the IR energy field emitted by the first plurality of IR emitters;, 'a first infrared (IR) emitter assembly, wherein the first infrared emitter assembly comprises a second plurality of infrared emitters for emitting an IR energy field;', 'a ...

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Номер записи: 58
04-04-2019 дата публикации

WOOD PIGMENT COMPOSITIONS AND WOOD TREATMENT PROCESSES

Номер: US20190099913A1
Автор: Islam Md Sayful, ZHANG JUN
Принадлежит:

Disclosed herein are compositions and methods for treating wood to give it a desirable color that is durable over time, while at the same time rendering the wood resistant to fungal decay and insect attack. The wood may be pressure treated in a two-step process whereby the wood is first treated with a wood preservation composition, and then treated with a composition comprising pigments, or vice versa. Alternatively, the wood may be simultaneously treated with a composition comprising a wood preservative and a composition comprising pigments. 197-. (canceled)98. A method of treating a wood substrate comprising the steps of:{'sub': '2', '(a) contacting said wood substrate with a wood pigment composition comprising an aqueous composition comprising: (i) solid micronized particles of carbon black; (ii) solid micronized particles of titanium dioxide (TiO); (iii) a polymeric additive having a glass transition temperature (Tg) of less than about 100° C.; and (iv) a dispersant;'}wherein said micronized particles of carbon black and said micronized particles of titanium dioxide have diameters in the range of 0.001 to 25 microns, and the ratio of carbon black to titanium dioxide is between about 1000:1 to about 1:1000 (wt/wt); and(b) subjecting said wood substrate to pressure treatment.99. A method of treating a wood substrate comprising the steps of:(a) contacting said wood substrate with a wood pigment composition comprising an aqueous composition comprising: (i) solid micronized particles of carbon black; (ii) solid micronized particles of zinc oxide (ZnO); (iii) a polymeric additive having a glass transition temperature (Tg) of less than about 100° C.; and (iv) a dispersant;wherein said micronized particles of carbon black and said micronized particles of zinc oxide have diameters in the range of 0.001 to 25 microns, and the ratio of carbon black to zinc oxide is between about 1000:1 to about 1:1000 (wt/wt); and(b) subjecting said wood substrate to pressure treatment.100 ...

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Номер записи: 59
21-04-2016 дата публикации

SYSTEM AND METHOD FOR BENDING WOOD STRIPS

Номер: US20160107328A1
Автор: Scorcia Bennett Vito
Принадлежит:

A system and method for automated bending of wood strips. The system includes an preprogrammed automated robot arm that is fitted with a gripper for grasping and manipulating the wood board around a hot mandrel in order to bend the wood into intricate bent shapes. The wood strips are first soaked in water so that they pliable to bend around the mandrel. The heated mandrel plasticizes the lignin to allow the fibers to reorient in the wet wood strips thus fixing or locking the wood in the bent shape. The grippers are preferably pneumatic grippers formed from two plates that move towards each other to grasp or clamp onto the wood strip. A friction plate urges the wood strips against the heated mandrel to provide consistent and constant contact between the wood strip and the surface of the hated mandrel. 1. An automated process for bending wood into a bent structure , which comprises:grasping a water saturated wood strip by a holding member;contacting the held water saturated wood strips with a heated mandrel for a sufficient time and with sufficient pressure to reorient fibers in the water saturated wood strips to fix or lock the wood strip in a desired bent configuration, andremoving the wood that is fixed or locked in the bent configuration; wherein the grasping, contacting and removing steps are automatically conducted under computer control of the holding member and mandrel to obtain the bent structure.2. The process of wherein the water saturated wood strip is obtained by soaking the wood in water for a sufficient time to saturate the wood fibers therein and render the wood strip pliable and conducive to being bent.3. The process of wherein the mandrel is heated to a temperature of between approximately 150° F. and 380° F.4. The process of wherein the holding member is a preprogrammed automated robot arm that is fitted with a gripper for grasping and manipulating the wood strip around the heated mandrel in order to bend the wood into the desired bent configuration ...

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Номер записи: 60
23-04-2015 дата публикации

LIGNOCELLULOSE PRESERVATIVE COMPOSITION, PROCESS USING SUCH COMPOSITION, PRESERVED LIGNOCELLULOSIC MATERIAL OBTAINABLE BY SUCH PROCESS AND PRODUCT COMPRISING SUCH MATERIAL

Номер: US20150111056A1
Автор: GOSSELINK Richard Johannes Antonius, Teunissen Wouter, Van Dam Jan Evert Gerard
Принадлежит: Stichting Dienst Landbouwkundig Onderzoek

The invention relates to a lignocellulose preservative composition comprising in the range of from 50 to 98 wt % of a pyrolysis oil obtainable by pyrolysis of lignocellulosic material, a polymerisable furan compound and a catalyst for polymerising the furan compound in a catalytically effective amount. The invention further relates to a process for producing preserved lignocellulosic material comprising impregnating lignocellulosic material by immersion in such composition and subsequently curing the impregnated material and to preserved lignocellulosic material obtainable by such process and to an engineered wood or non-wood product comprising such lignocellulosic material. 115-. (canceled)16. A lignocellulose preservative composition , comprising:(a) 50 to 98 wt % of a pyrolysis oil obtainable by pyrolysis of lignocellulosic material;(b) a polymerisable furan compound; and(c) a catalytically effective amount a catalyst for polymerising the furan compound.17. The lignocellulose preservative composition according to claim 16 , wherein the catalyst is selected from the group consisting of anhydrides claim 16 , acids claim 16 , chlorides and combinations thereof.18. The lignocellulose preservative composition according to claim 16 , wherein the polymerisable furan compound is furfuryl alcohol.19. The lignocellulose preservative composition according to claim 16 , comprising catalyst from 1 to 30 wt % claim 16 , based on the weight of furan compound.20. The lignocellulose preservative composition according to claim 16 , comprising 70 to 90 wt % of the pyrolysis oil.21. A lignocellulose preservative composition according to claim 16 , comprising 10 to 40 wt % furan compound claim 16 , based on the total weight of the composition.22. A lignocellulose preservative composition according to claim 16 , wherein the pyrolysis oil is obtainable by fast or flash pyrolysis of lignocellulosic material.23. A process for producing preserved lignocellulosic material claim 16 , ...

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Номер записи: 61
29-04-2021 дата публикации

DISINFECTION SYSTEM FOR WOOD BARRELS

Номер: US20210121589A1
Автор: Remirez Miguel Eduardo José, Remirez Miguel Jorge
Принадлежит:

Different aspects of the invention refer to a disinfection apparatus, and corresponding method, for wood barrel disinfection using microwave shock pulse, MwSP, technology for the complete elimination of microbial populations. This is accomplished by a system which ensures deep and complete disinfection, however such that the temperature is maintained below material degradation level. Complete disinfection is achieved due to effectiveness up to the deepest layers. The wooden barrel material is however preserved, due to the non-harmful nature of the dosage regime programmed into the radio frequency emission. 1. A disinfecting apparatus for elimination of microbes of a container , the apparatus comprising:a chamber configured for receiving the container;at least one radiating means configured for emitting microwave radiation; andprocessing means configured for controlling the microwave radiation and its parameters for emitting microwave radiation at a predetermined power, at a predetermined frequency, and during a predetermined pulse duration, followed by intensity pulses causing microbe vibration in an incremental fashion.2. The apparatus according to claim 1 , wherein the container has curved sides claim 1 , or has a cylindrical shape claim 1 , such as a barrel.3. The apparatus according to claim 2 , further comprising loading means for loading and unloading the container in and out of the chamber claim 2 , wherein the loading means are vertical means claim 2 , such as elevators claim 2 , or horizontal means claim 2 , such as a running belt or a ramp.4. The apparatus according to claim 3 , further comprising rotating means for rotating the barrel along its longitudinal axis claim 3 , wherein the rotating means are motor-driven or free-rotating.5. The apparatus according to claim 4 , wherein the chamber is a resonance cavity comprising a microwave antenna configured for constant radiation at a predetermined distance.6. The apparatus according to claim 5 , wherein a ...

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Номер записи: 62
02-04-2020 дата публикации

METHOD FOR CONTINUOUS ACETYLATION OF WOOD ELEMENTS

Номер: US20200101635A1
Автор: Benstead Stephen John, KAPPEN Theodorus Gerardus Marinus Maria
Принадлежит:

The disclosure relates to a method for continuous acetylation of wood elements. The acetylation is conducted with an acetylation medium at a pressure of at least 1.5 barg in a substantially oxygen free environment. Alternatively, the method includes the steps of: (a) feeding wood elements in a substantially oxygen free environment to a continuous acetylation reactor, and (b) treating the wood elements with an acetylation medium in the continuous acetylation reactor under wood acetylation reaction conditions, at a pressure of at least 1.5 barg. The process can acetylate wood elements to a high acetyl content in an efficient way, without compromising on the quality of the material. The acetylated wood elements can be used in the production of medium density fibreboards with superior qualities such as dimensional stability and durability. 1. Method for continuous acetylation of wood elements, wherein the acetylation is conducted with an acetylation medium under wood acetylation reaction conditions at a pressure of at least 1.5 barg in a substantially oxygen free environment. This application is a continuation of U.S. Ser. No. 15/565,310, filed Oct. 9, 2017, which in turn is a 371 of PCT/EP2016/058150.This disclosure relates to the field of wood acetylation. Particularly, the disclosure provides a method for continuous acetylation of wood elements.It has been known in the art to chemically modify wood with the aim to improve its service life and particularly to acetylate wood. Thereby materials with improved material properties, e.g. dimensional stability, hardness, durability, are obtained.In the art, it is known to use batch processes, i.e. non steady state processes for the acetylation of wood particles. Such processes, however, often lead to poor product uniformity as the properties differ significantly during the cycle of each batch and potentially from batch to batch. Since long term steady state conditions are not established, no two batches can ever be ...

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Номер записи: 63
02-04-2020 дата публикации

WOOD HEATING SYSTEM AND METHOD

Номер: US20200103168A1
Автор: HEFFERNAN William John Baxter, NURSULTANOV Nurzhan, VAN HEREL Marinus Johannes Wilhelmus Maria Ryan
Принадлежит:

A wood heating system comprises an electric power source, a first electrode assembly, a second electrode assembly, and a control system. The first electrode assembly is connected to the electric power source and is adapted to make electrical contact with a first end of a wood length to apply electric power to the wood length. The first electrode assembly comprises at least two electrode segments. The second electrode assembly is adapted to make electrical contact with a second end of the wood length. The control system is adapted to selectively connect/disconnect electric power flow between the electric power source and at least one electrode segment of the first electrode assembly. 178-. (canceled)79. An electro-thermal model-based measurement apparatus comprising:a first electrode assembly connectable to one end of a wood length and a second electrode assembly connectable to the other end of the wood length, at least one of the first and second electrode assemblies comprising a plurality of electrode segments;an electric power source configured to apply excitation to the first and second electrode assemblies;a measurement system comprising an electrical sensor; the measurement system configured to determine current and/or voltage distribution from the plurality of electrode segments; anda controller configured to derive from the current and/or voltage distribution an electro-thermal model of the wood length.80. The electro-thermal model-based measurement apparatus as claimed in claim 79 , wherein the electro-thermal model of the wood length comprises a real-time or near real-time model deterministic of at least one conductivity region(s) of the wood length and/or one or more wood length parameter(s).81. The electro-thermal model-based measurement apparatus as claimed in claim 79 , wherein the one or more wood length parameter(s) include one or more dimension(s) of the wood length or mass or volume of the wood length or moisture content or density of at least one ...

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Номер записи: 64
10-07-2014 дата публикации

Methods of treating wood with preservatives using supercritical noble gases

Номер: US20140193587A1
Автор: Gregory D. Phelan, William B. Carlson
Принадлежит: EMPIRE TECHNOLOGY DEVELOPMENT LLC

Disclosed are methods and compositions pertaining to the preservation of wood using one or more noble gasses in conjunction with wood preservatives.

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Номер записи: 65
09-06-2022 дата публикации

TIMBER REMEDIATION

Номер: US20220176181A1
Автор: LANG Timothy Ralston, Waters Peter John
Принадлежит:

Disclosed herein is a method of remediating chromated copper arsenate (CCA) treated timber. Particularly, the method comprises contacting the CCA timber with an oxidative solvent and an acidic solvent which provides remediated timber and a variety of extracts containing amongst other things the metals of concern. One or more of the steps is conducted using continuous counter current extraction (CCE). 1. A method of chromated copper arsenate (CCA) treated timber remediation , the method comprising the steps of:contacting the CCA timber with an acidic solvent to provide an acidic extract;contacting the CCA timber with an oxidative solvent to provide an oxidative extract; andseparating the contacted timber from the oxidative extract and acidic extract to produce a supernatant and a remediated timber,wherein one or more of the steps is conducted using continuous counter current extraction (CCE).2. The method of claim 1 , wherein contacting the CCA timber with the acidic solvent or contacting the CCA timber with an oxidative solvent is performed sequentially or simultaneously.3. The method of claim 1 , wherein separating the oxidative extract or the acidic extract from the contacted timber is performed sequentially or simultaneously.4. The method of claim 1 , further comprising a step of soaking the CCA timber with a solvent to provide a soak extract.5. The method claim 4 , wherein the soak extract is separated from the soaked timber.6. The method of claim 4 , wherein the CCA timber is soaked in an acidic solvent claim 4 , an oxidative solvent or mixtures thereof.7. The method of claim 1 , further comprising a step of pressing and/or drying the CCA timber claim 1 , providing a press extract.8. The method of claim 1 , wherein the acidic solvent is an aqueous mineral acid.9. The method of claim 8 , wherein an aqueous mineral acid is HSO.10. The method of claim 9 , wherein the aqueous HSOis at a concentration of up to 20 w/v claim 9 , preferably 2% w/v.11. The method of ...

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Номер записи: 66
26-04-2018 дата публикации

A COMPOSITE PRODUCT AND A PROCESS FOR PRODUCING SAID PRODUCT

Номер: US20180111161A1
Автор: Mayes Duncan, Pynnönen Janne
Принадлежит: STORA ENSO OYJ

The present invention relates to a composite product comprising a thermally modified solid wood component coated with a layer of a composite material which composite material comprises thermally modified cellulosic material and a polymer. The invention also relates to a process for producing said composite product. 1. A composite product comprising a thermally modified solid wood component wherein at least one side of the solid wood component is coated with a layer of a composite material which composite material comprises thermally modified cellulosic material and a polymer.2. The composite product according to wherein the composite material comprises less than 50% by weight of thermally modified cellulosic material.3. The composite product according to wherein the thermally modified cellulosic material has a particle size below 1 mm.4. The composite product according to wherein the thermally modified cellulosic material is in the form of a powder.5. The composite product according to wherein the thermally modified cellulosic material is thermally modified microfibrillated cellulose.6. The composite product according to wherein the polymer is a high melt polymer having a melting temperature above 180° C.7. The composite product according to wherein the polymer is polyethylene terephthalate (PET).8. The composite product according to wherein the layer of the composite material has a thickness between 1-5 mm.9. The composite product according to wherein the solid wood component and/or the cellulosic fibers have been thermally modified by heat treatment at a temperature between 160-250° C. at atmospheric pressure.10. The composite product according to wherein two or more sides of the solid wood component have been coated with a layer comprising the composite material.11. The composite product according to wherein the entire solid wood component has been coated with a layer comprising the composite material.12. The composite product according to wherein at least one ...

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Номер записи: 67
26-04-2018 дата публикации

Process of Improving the Dimensional Stability of Wood and Dimensional Stabile Wood Thereof

Номер: US20180111286A1
Автор: Sanghi Kavita
Принадлежит:

The present invention describes a process of improving the dimensional stability of wood and a dimensionally stable wood thereof. The said process is governed by contacting a composition comprising resin, catalyst and dye with a wood in a closed container followed by evacuating the air from the chamber and creating a vacuum. It is further treated with a composition comprising resin and dye followed by vacuum treatment during the contact step for at least 2 hours followed by a resting period and further treated in a temperature of approximately 100 degrees Celsius for about 1 hour and 30 minutes in order to obtain the desired wood. 1. A process of improving the dimensional stability of wood , wherein the said process comprising the steps ofa) contacting a composition comprising resin, catalyst and dye with a wood in a closed container;b) applying vacuum treatment to the wood of step (a) during the contact step for at least 2 hours;c) resting the wood of step (b) at a room temperature for at least 48 hours;d) contacting the wood of step (c) with the composition comprising resin and dye followed by vacuum treatment during the contact step for at least 2 hours;e) resting the wood of step (d) at a room temperature for at least 24 hours;f) treating the said wood of step (e) with heat of at least 100 degree Celsius for approximately 1 hrs 30 minutes followed by gradually decreasing of heat for about 6 hours in order to obtain the desired wood of improved dimensional stability; wherein the said wood has a size at least 1.5 mm diameter greater than the diameter of the wood used in step (a).2. The process as claimed in claim 1 , wherein the catalyst to the Resin is in the range of 2.1 gm/lit to 2.3 gm/lit.3. The process as claimed in claim 1 , wherein the said resin preferably used is Resinol 90C.4. The process as claimed in claim 1 , wherein the dye used is selected from the group of oil soluble dyes.5. The process as claimed in claim 4 , wherein the dye used is selected as ...

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Номер записи: 68
07-05-2015 дата публикации

COMPOSITIONS AND METHODS FOR RESISTING DISCOLORATION OF WOOD AND TREATED WOOD

Номер: US20150125712A1
Автор: CHEEKS CHARLES NORMAN, CLAWSON RONALD WALTON, ROSS ALAN S.
Принадлежит: KOP-COAT, INC.

A solution and method of treating wood to resist discoloration of the wood and the treated wood employ a polydentate monoamino carboxylic acid and/or a diakyl diphosphonic acid. The invention resists discoloration which is believed to be caused by the mobility of organic based chromophoric molecules within the wood which migrate toward the surface of the wood. Among uses of the invention, it is particularly helpful in effecting resistance to discoloration of wood being treated with wood preservatives, stains and coatings. In another embodiment, ammonium pentaborate may be employed to resist discoloration. 2. The solution of including said solution also containing a wood protective material selected from the group consisting of wood preservatives claim 1 , stains and coatings.3. The solution of including said polydentate amino carboxylic acid being selected from the group consisting of nitrilatriacetic acid claim 1 , ethylene diamine tetracetic acid and diethylene triamine pentanacetic acid.4. The solution of including said solution containing at least one of(a) about 0.10 to 15 weight percent of at least one said polydentate amino carboxylic acid;(b) 0.10 to 10 weight percent of at least one said dialkyl diphosphonic acid and said weight percentages based on the total solution weight.5. The solution of including said solution containing at least one of(a) about 0.1 to 10 weight percent of at least one said polydentate amino carboxylic acid; and(b) 1 to 5 weight percent of at least one said dialkyl diphosphonic acid.6. The solution of includingsaid solution containing both said polydentate amino carboxylic acid and said dialkyl diphosphonic acid.7. The solution of includingsaid solution having a pH of about 4 to 12.5.8. The solution of includingsaid solution having a pH of about 6.5 to 8.9. The solution of includingsaid solvent is water.10. The solution of includingsaid solution is in concentrate form .11. The solution of includingsaid wood protective material being ...

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Номер записи: 69
04-05-2017 дата публикации

METHODS OF CONFERRING FIRE RETARDANCY TO WOOD AND FIRE-RETARDANT WOOD PRODUCTS

Номер: US20170120473A1
Автор: Gao Xinhao H., Horton John, ZHANG JUN
Принадлежит:

A process is provided for treating wood products including lumber, plywood and other engineered wood products comprising the steps of applying an aqueous fire-retardant impregnate and applying a coating to the surface of the wood product. In one embodiment, said process confers fire-retardant properties to the wood products sufficient to pass the extended burn test of ASTM E-84. The present invention also provides fire retardant wood products. 1. A method of treating plywood or oriented strand board (OSB) comprising the steps of:applying an aqueous fire-retardant impregnate to a wood product consisting of plywood or OSB with a thickness of up to approximately % inch, such that the impregnate penetrates the wood product; andapplying a coating to the wood product surface;wherein said treatment confers fire retardancy to the treated wood product such that the treated wood product exhibits a flame spread distance of not more than 6 feet in an ASTM E-84 30-minute burn test;wherein said fire retardant impregnate is applied by pressure or vacuum treatment, or both, or microwave treatment.2. The method of claim 1 , wherein said fire-retardant impregnate is substantially free of phosphates claim 1 , ammonia claim 1 , and salts thereof.3. The method of claim 1 , wherein said fire-retardant impregnate comprises a phosphate salt and/or a boron-containing compound.4. The method of claim 1 , wherein said fire retardant impregnate comprises a nitrogen-containing compound and/or a boron-containing compound.5. The method of claim 3 , wherein the boron-containing compound is selected from the group consisting of boric acid claim 3 , ammonium borate claim 3 , sodium octaborate claim 3 , sodium pentaborate claim 3 , and sodium tetraborate and hydrates thereof.6. The method of claim 3 , wherein the phosphate salt is selected from the group consisting of monoammonium phosphate claim 3 , diammonium phosphate and triammonium phosphate claim 3 , monosodium phosphate claim 3 , disodium ...

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Номер записи: 70
27-05-2021 дата публикации

Method and System for a Continuous Wood Modification Heat Process

Номер: US20210154884A1
Автор: Wang Xiong, Zhou Ming Wu
Принадлежит:

A continuous wood modification by heat process, that comprises: stacking wooden boards on a trolley at intervals; exerting pressure on said wooden boards; transferring said wooden boards to a heating kiln, pre-heated by microwave and hot air circulation, that has a water vapor flow of 2-5 meter3/hour, a temperature range of 60-100° C., and a humidity range of 50%-100%; transferring said wooden boards to a shallow drying kiln, pre-heated by microwave and hot air circulation, that has a drying temperature of 100-120° C.; transferring said wooden boards to a deep drying kiln, pre-heated by microwave and hot air circulation, that has a drying temperature of 120-120° C., an oxygen content range of 1-10%, and a water vapor flow rate of 1-10 m3/hour; transferring said wooden boards to a carbonization kiln, pre-heated by microwave and hot air circulation, that has a temperature range of 120-180° C., an oxygen content range of 1%-5%; transferring said wooden boards to a slow cooling kiln, that has a temperature range of 120-130° C., and an oxygen content range of 1%-10%; transferring said wooden boards to a fast cooling kiln, that has a temperature range of 90-100° C.; transferring said wooden boards to a rewetting kiln, that has a humidity range of 50%-100%; providing water vapor to said rewetting kiln; while being in said rewetting kiln, and when a temperature range of said wooden boards is 40-60° C., and a moisture content of said wooden boards is 6%-10%, transferring said wooden boards out of said rewetting kiln; wherein each of said heating kiln, said shallow drying kiln, said deep drying kiln, said carbonization kiln, said slow cooling kiln, said fast cooling kiln, and said rewetting kiln comprises a fan, a partition board, a shunt hood, and an exhaust port; wherein said partition board divides an interior of each of said heating kiln, said shallow drying kiln, said deep drying kiln, said carbonization kiln, said slow cooling kiln, said fast cooling kiln, and said ...

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Номер записи: 71
10-05-2018 дата публикации

METHOD AND DEVICE FOR SPECIFICALLY INFLUENCING THE TECHNOLOGICAL PROPERTIES OF INDIVIDUAL REGIONS OF A SHEET-LIKE MATERIAL, A PRE-COMPACTED MATERIAL NONWOVEN OR A MATERIAL FIBRE CAKE

Номер: US20180126585A1
Автор: KALWA Norbert, Stahl Gerhard
Принадлежит: Cefla Deutschland GmbH

A device and a method for specifically influencing the technological properties of individual regions of a sheet-like material are provided, including the following steps: a) fixing the sheet-like material or a pre-compacted material nonwoven or a material fibre cake on a workbench, b) placing at least one applicator on the upper side and/or the underside of the sheet-like material, the material nonwoven or the material fibre cake, c) specifically moving the at least one applicator on the upper side and/or the underside and pressing an improving medium into partial regions of the sheet-like material, the material nonwoven or the material fibre cake in a predetermined amount and under a predetermined pressure, d) optionally, subsequently pressing the pre-compacted material nonwoven or the material fibre cake to form a sheet of the desired thickness. 1. A device for influencing technological properties of individual regions of a sheet-like material comprising:a) a workbench, on which the sheet-like material, a pre-compacted material nonwoven or a material fiber cake can be placed and can be fixed, i) a housing, which can be sealed off with respect to a surface of the sheet-like material, the material nonwoven or the material fiber cake,', 'ii) at least one application nozzle, arranged in the housing, for applying an improving medium to the surface,', 'iii) a pressure generator for generating a positive pressure, by means of which the improving medium can be pressed into the sheet-like material, the material nonwoven or the material fiber cake, and, 'b) an applicator comprisingc) optionally, a compression press for compressing the material nonwoven or the material fiber cake to form a sheet of the desired thickness.2. The device as claimed in one of claim 1 , wherein the pressure generator is arranged upstream of the application nozzle and the improving medium flows through the application nozzle with positive pressure.3. The device as claimed in claim 1 , wherein ...

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Номер записи: 72
11-05-2017 дата публикации

Ultraviolet-c photochemistry for customizing an appearance of a wood product

Номер: US20170128982A1
Автор: Chris Bartimioli, David Seymour, David Sheesley, Grover Lee McCollum
Принадлежит: Ssb Licensing LLC

Ultraviolet-C (UVC) photochemistry for customizing an appearance of a wood product is described. In an implementation, a calculated amount of UVC radiation at a wavelength between 100-290 nanometers, for example, is applied to wood to achieve a desired appearance. The customized wood is free of the volatile organic compounds (VOCs) of stains, varnishes, and paints. The amount of UVC radiation to apply can be based on the tannin content of the wood or on other wood parameters or added photoactive agents. Photochemical interaction between the UVC radiation and various wood extracts, metal ion solutions, acids, bases, and oxidizers is also used to modify the color or lightness of a wood product. An example system includes multiple stations for programmatically spraying a wood product with various processing solutions, drying the wood, and irradiating the wood at one or more stages of the process with UVC radiation to interact with both the processing solutions and the wood surface, at programmed time intervals.

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Номер записи: 73
01-09-2022 дата публикации

METHOD FOR CONTINUOUS ACETYLATION OF WOOD ELEMENTS

Номер: US20220274281A1
Автор: Benstead Stephen John, KAPPEN Theodorus Gerardus Marinus Maria
Принадлежит:

The present invention relates to a method for continuous acetylation of wood elements. The acetylation is conducted with an acetylation medium at a pressure of at least 1.5 barg in a substantially oxygen free environment. Alternatively, the method according to the invention comprises the steps of: (a) feeding wood elements in a substantially oxygen free environment to a continuous acetylation reactor, and (b) treating the wood elements with an acetylation medium in the continuous acetylation reactor under wood acetylation reaction conditions, at a pressure of at least 1.5 barg. The process according to the present invention allows to acetylate wood elements to a high acetyl content in a very efficient way, without compromising on the quality of the material. The acetylated wood elements can be used in the production of medium density fibreboards with superior qualities such as dimensional stability and durability. 1. A method for continuous acetylation of wood elements , wherein the acetylation is conducted with an acetylation medium under wood acetylation reaction conditions at a pressure of at least 1.5 barg in a substantially oxygen free environment.2. A method for continuous acetylation of wood elements comprising the steps of:(a) feeding wood elements in a substantially oxygen free environment to a continuous acetylation reactor,(b) treating the wood elements with an acetylation medium in the continuous acetylation reactor under wood acetylation reaction conditions, at a pressure of at least 1.5 barg.3. The method according to claim 1 , wherein the oxygen content in the acetylation reactor is less than 0.8 vol. %.4. The method according to claim 2 , wherein the oxygen content of the wood elements fed to the acetylation reactor is less than 0.8 vol. %.5. The method according to claim 1 , comprising removing oxygen from the wood elements before the acetylation reaction claim 1 , preferably by applying vacuum level of 100 mbar or less to the wood elements.6. The ...

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Номер записи: 74
23-04-2020 дата публикации

Method for manufacturing wood composite board

Номер: US20200122353A1
Автор: Ayano FUJIMOTO, Naohiko Maeda, Shigeki Naito, Teppei Asada
Принадлежит: Panasonic Intellectual Property Management Co Ltd

A biomass composition containing a pulverized palm tree material and a multivalent carboxylic acid is supplied to a surface of a wood board, and then, thermocompression molding is performed on the biomass composition supplied to the surface of the wood board.

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Номер записи: 75
03-06-2021 дата публикации

APPARATUS AND METHOD FOR HEAT TREATING WOOD

Номер: US20210162623A1
Автор: Bloye Dwight Frederick
Принадлежит:

A method of heat treating a wood board comprises: passing a wood board from an input end to a discharge end of a conveyor; and heating the board with radiant heat as it is passes along the conveyor, the heating can be such as to provide significant charring of the wood. The wood board is then brushed with at least one rotating brush. An apparatus, for carrying out the method, has a conveyor for conveying a wood board having an input end and a discharge end. A radiant heater is located above the conveyor for heating the wood board, and a rotating brush is mounted for rotation above the conveyor, for brushing the wood board after heating. 1. An apparatus , for heat treating wood , the apparatus comprising: a conveyor for conveying a wood board having an input end and a discharge end; a radiant heater located above the conveyor for heating the wood board; and a rotating brush mounted for rotation above the conveyor , for brushing the wood board after heating by the radiant heater.2. An apparatus as claimed in claim 1 , wherein the radiant heater is a gas heater powered by combustible gas claim 1 , wherein optionally the radiant heater comprises a radiant heater assembly comprising a plurality of individual radiant burners and a control unit claim 1 , enabling individual control of the individual radiant burners claim 1 , and wherein optionally the radiant heater assembly extends longitudinally along and transversely across the conveyor claim 1 , and the individual radiant burners are configured to permit the effective longitudinal extent and transverse extent of the radiant burner assembly to be varied by operation of selected individual radiant burners.3. An apparatus as claimed in claim 2 , wherein the height of the radiant heater assembly above the conveyor is adjustable claim 2 , and wherein optionally the conveyor is mounted on a main frame claim 2 , at least two inverted U-shaped frames are mounted on the mainframe above the conveyor claim 2 , threaded shafts are ...

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Номер записи: 76
17-05-2018 дата публикации

ENGINEERED HARDWOOD FLOORING AND MANUFACTURE THEREOF

Номер: US20180135312A1
Автор: Schafer Scott F.
Принадлежит:

Methods and articles of manufacture relating to engineered hardwood flooring are provided. Engineered hardwood flooring is produced by drying a structural layer comprising a hardwood to a moisture content from about 0.1% to about 3%, whereupon a cell structure of the hardwood collapses. The dried structural layer is humidified to where the hardwood has an increased moisture content greater than about %. First and second outer layers are adhered to respective first and second sides of the structural layer to form an engineered product, the structural layer sandwiched by the first outer layer and the second outer layer. 1. A method of manufacturing engineered hardwood flooring comprising:{'b': 0', '1, 'drying a structural layer comprising a hardwood to a moisture content from about .% to about 3%, whereupon a cell structure of the hardwood collapses; and'}humidifying the dried structural layer to where the hardwood has an increased moisture content greater than about 3%.2. The method of claim 1 , further comprising forming at least one coupling feature in the structural layer claim 1 , the at least one coupling feature configured to allow the structural layer to be coupled to another structural layer.3. The method of claim 2 , wherein the at least one coupling feature includes tongue and groove features.4. The method of claim 1 , further comprising coupling a first outer layer to a first side of the structural layer.5. The method of claim 4 , wherein the first outer layer includes a member selected from the group consisting of a hardwood claim 4 , a composite wood claim 4 , a polymeric material claim 4 , and combinations thereof.6. The method of claim 4 , further comprising forming at least one coupling feature in one of the first outer layer and the structural layer claim 4 , the at least one coupling feature configured to allow the one of the first outer layer and the structural layer to be coupled to another one of the first outer layer and the structural layer.7. ...

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Номер записи: 77
10-06-2021 дата публикации

GREEN PROCESS FOR MODIFYING WOOD

Номер: US20210170623A1
Автор: Berg Alex, Fritsch Roland, Kier Joel, Malzer Kurt
Принадлежит:

This invention relates to a process for modifying wood. The process comprises treating the wood with an impregnating solution comprising an alkali metal (or alkaline earth metal) silicate, under conditions sufficient to impregnate the wood with one or more of the components of the impregnating solution. The process can comprise an optional second impregnation with a second impregnating solution. The process also comprises adding gaseous carbon dioxide to the treated wood, in the absence or presence of water, under pressure ranging from about 2 to about 12 bars, thereby lowering the pH of the treated wood to about 11 or below, to stabilize and/or fix the components of the impregnating solution in the wood. The process is green, non-toxic, and the resulting modified wood or wood product can be used across all primary construction and infrastructure applications. 1. A process for modifying wood , comprising:{'sub': '2', 'treating the wood with an impregnating solution comprising an alkali metal (or alkaline earth metal) silicate, under conditions sufficient to impregnate the wood with one or more of the components of the impregnating solution, wherein the weight ratio of SiOto alkali metal (or alkaline earth metal) oxide in the alkali metal (or alkaline earth metal) silicate ranges from about 2.0 to about 4.0; and'}adding gaseous carbon dioxide to the treated wood, in the absence or presence of water, under pressure ranging from about 2 to about 12 bars, thereby lowering the pH of the treated wood to about 11 or below, to stabilize and/or fix the components of the impregnating solution in the wood,wherein the process is green, non-toxic as being carried out in the absence of a pesticide or biocide, or as being carried out with an environmentally safe boron level in the impregnating solution of no more than 1% by wt.2. The process of claim 1 , wherein the process is green claim 1 , non-toxic as being carried out in the absence of a pesticide or biocide.3. The process of ...

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Номер записи: 78
15-09-2022 дата публикации

RADIO FREQUENCY TREATMENT TO PHYTOSANITIZE WOOD PACKAGING MATERIALS USED IN INTERNATIONAL SHIPPING

Номер: US20220288809A1
Автор: Hamelin Mark, Hoover Kelli, Janowiak John J., Mack Ronald G., Szymona Karolina
Принадлежит:

A method for treating wood packaging materials using Radio Frequency heating includes the steps of heating wood packaging materials using RF heating and applying a pressure before the heating or incrementally applying a pressure during the heating. The wood packaging materials are heated in a RF operating unit that has a sealed chamber with an inner surface and a liner cover a majority of the inner surface, the liner having a heat-reflective inner face and an insulation layer between the inner face and the inner surface. 1. A method of treating wood packaging materials (WPMs) using Radio Frequency (RF) heating , the method comprising the steps of: a sealable chamber having an inner surface,', 'a liner covering a majority of the inner surface, the liner having a heat-reflective inner face and an insulation layer between the inner face and the inner surface of the sealable chamber,', 'a RF generator connected to the chamber for applying RF heating rea ent to the WPM,', 'a pressurization system for controlling the pressure inside the chamber, loading the chamber with a workload of the WPMs;, 'providing a RF operating unit includingapplying a pressure to the chamber during the treatment, the pressure being at least 5 psi greater than atmospheric pressure;treating the WPMs using RF heating until a temperature of the WPMs reaches a predetermined temperature not more than 100° C.; andmaintaining the predetermined temperature for at least 1 minute.2. The method of treating wood packaging materials in accordance with claim 1 , wherein the liner covers at least 75% percent of the entire inner surface of the sealed chamber.3. The method of treating wood packaging materials in accordance with claim 1 , wherein the heat-reflective inner face of the liner is aluminum foil claim 1 , aluminum fabric claim 1 , or aluminum anodized polyester fabric having a heat reflectivity of at least 90%.4. The method of treating wood packaging materials in accordance with claim 1 , wherein the ...

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Номер записи: 79
15-09-2022 дата публикации

OUTDOOR CABINET

Номер: US20220288810A1
Автор: Healey Richard
Принадлежит:

An outdoor cabinet is provided, including at least one carcass fabricated from an engineered wood, the carcass having walls and a waterproof facing on at least one of the walls. The cabinet includes at least one door fabricated from a thermoplastic polymer, where the door is attached to the carcass by at least one hinge. The engineered wood may be medium density fiberboard. The thermoplastic polymer may be high density polyethylene. The waterproof facing may be melamine. 1. A cabinet , comprising:(a) at least one carcass fabricated from a waterproof engineered wood, the carcass comprising a plurality of walls and a waterproof facing on at least one of the walls; and(b) at least one door fabricated from a thermoplastic polymer, the door attached to the carcass by at least one hinge.2. The cabinet of claim 1 , wherein the engineered wood is medium density fiberboard.3. The cabinet of claim 1 , wherein the thermoplastic polymer is high density polyethylene4. The cabinet of claim 1 , further comprising at least one decorative panel disposed on at least one wall of the carcass claim 1 , the at least one decorative panel fabricated from a thermoplastic polymer.5. The cabinet of claim 4 , wherein the thermoplastic polymer is a high-density polyethylene.6. The cabinet of claim 1 , wherein the waterproof facing is melamine.7. The cabinet of claim 1 , wherein the walls of the carcass are stapled together.8. The cabinet of claim 1 , wherein the walls of the carcass are nailed together.9. The cabinet of claim 1 , wherein the walls of the carcass are glued together.10. The cabinet of claim 1 , wherein the walls of the carcass are stapled and nailed together.11. The cabinet of claim 1 , wherein the walls of the carcass are stapled and glued together.12. The cabinet of claim 1 , wherein the walls of the carcass are nailed and glued together.13. The cabinet of claim 1 , further comprising at least one shelf made of the melamine-faced waterproof medium density fiberboard composite. ...

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Номер записи: 80
07-05-2020 дата публикации

Enhanced performance of wood and engineered wood products using combined durability and flame retardancy

Номер: US20200139574A1
Автор: Ronald Philip Moon
Принадлежит: Wood Modification Technologies Ltd

A treatment process and wood products thereof including a product formulation of a single phase solution combining a wood preservative (durable component) with a Flame Retardant component (FR) to produce a durable Flame Retardant (dFR) treated wood product. The durable component comprises a range of copper based and non-copper based wood preservatives, while the FR component comprises alkali metal silicates and alkali metal aluminate compounds. The dFR working solution undergoes chemical impregnation (treatment) followed by a heat (fixation) process step that locks the chemical into the wood making it non-leachable. The dFR treated wood products are tested for their enhanced fire performance properties. When heated, wood undergoes thermal degradation and combustion producing gases, vapors, tars and chars. Using a cone calorimeter burn test method, dFR treated wood products show a significant reduction in heat release rate, mass loss rate and smoke generated values compared to untreated radiate pine.

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Номер записи: 81
07-05-2020 дата публикации

Device For The Thermal Treatment Of Logs

Номер: US20200139575A1
Автор: GATT Anthony-Ange, PINAULT Philippe, PINAULT Valentin
Принадлежит: ThermoDynamic Workshop Training - TWT

This invention concerns a heat treatment device intended to be associated with an intermodal container () loaded with logs, comprising a pressurized water steam supply line (). Said heat treatment device is particular in that it comprises at least one, preferably two, substantially rectilinear tube (), provided with a plurality of openings distributed over its length and circumference, said at least one tube () being intended to be introduced from the rear into said intermodal container () loaded with logs, and to be supplied by said pressurized water steam. 13. A heat treatment device intended to be associated with an intermodal container () loaded with logs , the device comprising:{'b': 1', '2', '2', '3', '2', '2', '2, 'a pressurized water steam supply line (), having at least one, preferably two, tube (), provided with a plurality of openings distributed over its length and circumference, said at least one tube () being intended to be introduced from the rear into said intermodal container () loaded with logs, and to be supplied by said pressurized water steam, wherein said at least one tube () being substantially rectilinear, in the sense that said at least tube () may have a certain elasticity that will cause the tube () to be slightly deformed.'}22. The device according to claim 1 , wherein said openings of said tubes () are of increasing size and/or number starting from the water steam supply side.32. The device according to claim 1 , in which wherein the at least one tube () has an external diameter of less than 25 mm.44. The device according to claim 1 , further comprising a gutter () for recovering condensed water.55456. The device according to claim 4 , further comprising a line () for evacuating the water recovered in the gutter () claim 4 , said line () being provided with a filter ().63. The device according to claim 1 , further comprising a sealing device claim 1 , consisting in particular of at least one foam strip claim 1 , intended to be arranged ...

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Номер записи: 82
21-08-2014 дата публикации

Composition and Method of Manufacture of Hardened Wood

Номер: US20140234647A1
Автор: Sanderson Brian Matthew
Принадлежит:

There is a hardened wood composition, comprising an acetylated whole wood portion that may have substantially all of its accessible interior volume impregnated with a hardened thermosetting plastic. A method of manufacturing a hardened wood comprising the steps of: acetylating a whole wood portion and impregnating the whole wood portion with a liquid-phase thermosetting polymer then curing such thermosetting polymer impregnated porous body by the steps of: enclosing the body in a fluid impermeable bag and subjecting the enclosed body to enhanced fluid pressure substantially, contemporaneously, with subjecting the enclosed body to a temperature sufficient to cure the thermosetting plastic impregnated therein by submerging the same in water near its boiling point. 1. A hardened wood composition , comprising an acetylated whole wood portion having substantially all of its accessible interior volume impregnated with a hardened thermosetting plastic.2. A method of manufacturing a hardened wood comprising the steps of acetylating a whole wood portion and impregnating the whole wood portion with a liquid-phase thermosetting polymer.3. A method of curing a thermosetting polymer impregnated porous body comprising the steps of enclosing the body in a fluid impermeable membrane and subjecting the enclosed body to enhanced fluid pressure as compared to pressure immediately surrounding the body substantially contemporaneously with subjecting the enclosed body interior to the membrane to a temperature sufficient to cure the thermosetting plastic impregnated therein.4. The method of claim 3 , wherein the membrane is a plastic bag and the fluid pressure and temperature is applied by submerging the enclosed body in water near but below boiling temperature.5. The method of claim 3 , wherein the membrane includes a material selected from the group of materials consisting of silicone claim 3 , rubber claim 3 , neoprene claim 3 , and biaxially-oriented polyethylene terephthalate. This ...

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Номер записи: 83
31-05-2018 дата публикации

SINGLE PASS CONTINUOUS LUMBER DRYING KILN

Номер: US20180149428A1
Автор: KOLARI GARY L.
Принадлежит:

A single-pass lumber kiln includes a main drying chamber, a heat source to provide heat to the main drying chamber, a pre-heating chamber connected to a receiving side of the main drying chamber, the pre-heating chamber having a moisture collector and a kiln entrance, a supplemental heat source to provide heat to the pre-heating chamber, a conditioning chamber connected to an exit of the main drying chamber, the conditioning chamber having a moisture delivery system and a kiln exit, wherein the pre-heating chamber, the main drying chamber and the conditioning chamber are positioned such that lumber entering the kiln travels in only one direction, partitions between the main drying chamber and the conditioning chamber, and between the main drying chamber and the pre-heating chamber, the partitions having controllable dampers, fans arranged adjacent the pre-heating chamber, the conditioning chamber, and the main drying chamber, wherein some of the fans are arranged between the pre-heating and main drying chamber to transfer heat from the main drying chamber to the pre-heating chamber through the dampers, wherein the supplemental heat source provides heat to the pre-heating chamber in addition to the heat from the main drying chamber, exhaust fans arranged adjacent the kiln entrance and the kiln exit, and a fluid path connecting the moisture collector of the pre-heating chamber to the moisture delivery system of the conditioning chamber. 1. A single-pass lumber kiln , comprising:a main drying chamber;a heat source to provide heat to the main drying chamber;a pre-heating chamber connected to a receiving side of the main drying chamber, the pre-heating chamber having a moisture collector and a kiln entrance;a supplemental heat source to provide heat to the pre-heating chamber;a conditioning chamber connected to an exit of the main drying chamber, the conditioning chamber having a moisture delivery system and a kiln exit, wherein the pre-heating chamber, the main drying ...

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Номер записи: 84
09-06-2016 дата публикации

IRON-CORROSION INHIBITION METHOD, AND WOOD TREATMENT METHOD

Номер: US20160158960A1
Автор: MATSUMURA Kenta
Принадлежит:

The present disclosure provides a drug composition capable of preventing corrosion of components or the like made of iron that may come into contact with the drug composition in a wood treatment device for impregnating wood with a drug composition, and a method for preventing corrosion of the components or the like made of iron. In one or more embodiments, the present disclosure relates to a method for preventing corrosion of iron in a wood treatment device, including impregnating wood with a drug composition using the wood treatment device. The treatment device has a component or a portion made of iron that comes into contact with the drug composition, and the drug composition is an aqueous solution composition containing an iodopropynyl carbamate compound and an organic acid salt of quaternary ammonium. 1. A method for preventing corrosion of iron in a wood treatment device , comprising impregnating wood with a drug composition using the treatment device , 'the drug composition is an aqueous solution composition containing an iodopropynyl carbamate compound and an organic acid salt of quaternary ammonium.', 'wherein the treatment device has a component or a portion made of iron that comes into contact with the drug composition, and'}2. The method according to claim 1 , wherein the treatment device is a pressure treatment device comprising a pressure-resistant pressure vessel and a pressurizing pump for injecting by pressure a drug composition into wood in the pressure vessel.3. The method according to claim 1 , wherein the treatment device is a pressure treatment device comprising a pressure-resistant pressure vessel claim 1 , a liquid tank that can store a drug composition claim 1 , and a pressurizing pump for injecting by pressure the drug composition in the liquid tank into the pressure vessel.4. A method for treating wood with a pressure treatment device comprising a pressure-resistant pressure vessel and a pressurizing pump for injecting by pressure a drug ...

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Номер записи: 85
24-06-2021 дата публикации

Method of improving the hydrophobic properties of cellulosic materials without leaving an acidic residue

Номер: US20210187781A1
Автор: Edwin Neal, Fred Donald Lowder, Robert William Morton
Принадлежит: Woodholdings Environmental Inc

A method for improving the hydrophobic properties of a cellulosic material having a measurable moisture content without leaving an acidic residue comprises immersing the material in an inert gas, treating the material at a first temperature of between about 180° F. and about 250° F. with a vapor of silane until the silane reacts with the moisture to form hydroxysilanes and an acid vapor, then treating the material at a second temperature of between about 280° F. and about 350° F. until the hydroxysilanes convert to dehydrated silanes that are diffusely resident in the material, and removing the moisture, the acid vapor and remaining silane vapor until the treated material is substantially acid free.

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Номер записи: 86
14-06-2018 дата публикации

COLORATION OF ACETYLATED WOOD

Номер: US20180162008A1
Автор: Williams David J.
Принадлежит:

Techniques and products are described for coloring acetylated wood products. An acetylated wood product can be impregnated by a coloring medium within a chamber and the colorant or colorants contained within the coloring medium can be fixed to the acetylated wood product by the application of heat or by application of radio frequency radiation to color any external surface or interior region of the acetylated wood product which has been impregnated by the coloring medium. 1. A method for coloring an acetylated wood product , comprising:providing the acetylated wood product in a chamber;providing a coloring medium in liquid form containing one or more colorants into the chamber;causing the coloring medium to impregnate the acetylated wood product;and then heating the impregnated acetylated wood product to fix the one or more colorants to any exterior surface or any interior region of the acetylated wood product which has been impregnated by the coloring medium.2. The method of claim 1 , further comprising:reducing pressure in the chamber to remove air from the acetylated wood product, wherein the coloring medium impregnates the surface and at least some of the interior of the acetylated wood product by replacing the air removed from the acetylated wood product by vacuum impregnation.3. The method of claim 2 , further comprising:applying positive pressure following the vacuum impregnation to further promote penetration of the coloring medium into the acetylated wood product.4. The method of claim 1 , further comprising:controlling the degree of penetration of the coloring medium into the acetylated wood product by applying positive pressure after providing the coloring medium into the chamber without prior application of vacuum.5. The method of claim 1 , further comprisingwithout application of vacuum or positive pressure, immersing the acetylated wood product in the coloring medium to effect impregnation by infusion thereby limiting the impregnation largely to the ...

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Номер записи: 87
14-06-2018 дата публикации

COLORATION OF ACETYLATED WOOD

Номер: US20180162009A1
Автор: Williams David J.
Принадлежит:

Techniques and products are described for coloring acetylated wood products. An acetylated wood product can be impregnated by a coloring medium within a chamber and the colorant or colorants contained within the coloring medium can be fixed to the acetylated wood product by the application of heat or by application of radio frequency radiation to color any external surface or interior region of the acetylated wood product which has been impregnated by the coloring medium. 1. A method for coloring an acetylated wood product , comprising:providing the acetylated wood product in a chamber;providing a coloring medium in liquid form containing one or more colorants into the chamber;causing the coloring medium to impregnate the acetylated wood product;and then heating the impregnated acetylated wood product to fix the one or more colorants to any exterior surface or any interior region of the acetylated wood product which has been impregnated by the coloring medium.2. The method of claim 1 , further comprising:reducing pressure in the chamber to remove at least some of the air from the acetylated wood product, wherein the coloring medium impregnates the surface and at least some of the interior of the acetylated wood product by replacing the air removed from the acetylated wood product by vacuum impregnation.3. The method of claim 2 , further comprising:applying positive pressure following the vacuum impregnation to further promote penetration of the coloring medium into the acetylated wood product.4. The method of claim 1 , further comprising:controlling the degree of penetration of the coloring medium into the acetylated wood product by applying positive pressure after providing the coloring medium into the chamber without prior application of vacuum.5. The method of claim 1 , further comprisingwithout application of vacuum or positive pressure, immersing the acetylated wood product in the coloring medium to effect impregnation by infusion thereby limiting the ...

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Номер записи: 88
29-09-2022 дата публикации

Home Care Compositions

Номер: US20220306889A1
Автор: FABIJANIC Kristina, Pan Long, PENA Henry, RODRIGUEZ CEDILLO Cesar, SALINAS LOPEZ Aida Ninfa, Stranick Michael
Принадлежит: Colgate-Palmolive Company

Described herein are home care compositions comprising an alcohol alkoxylate surfactant and a polysaccharide gum, along with methods of making and using same. 1. A home care composition comprising an alcohol alkoxylate surfactant and a polysaccharide gum , wherein the weight ratio of the alcohol alkoxylate surfactant to the polysaccharide gum is greater than 0.9:1.2. The home care composition according to claim 1 , wherein the polysaccharide gum is a nonionic polysaccharide gum.3. The home care composition according to claim 1 , wherein the polysaccharide gum is selected from: xanthan gum; guar gum; locust bean gum; dammar gum; and tara gum.4. The home care composition according to claim 1 , wherein the polysaccharide gum comprises xanthan gum.5. The home care composition according to claim 1 , wherein the alcohol alkoxylate surfactant comprises an alcohol alkoxylate of the formula (I):{'br': None, 'sub': n', '2n+1', 'm', '2m', 'x, 'CH—O—(CH—O)—H\u2003\u2003(I)'}wherein n=6 to 18, m=2 to 4, and x=4 to 20.6. The home care composition according to claim 5 , wherein —CH— is selected from the group consisting of —CH—CH— claim 5 , ethylene claim 5 , —CH—CH—CH— claim 5 , n-propylene claim 5 , —CH(Me)-CH— claim 5 , —CH—CH(Me)- claim 5 , methylethylene claim 5 , and mixtures thereof.7. The home care composition according to claim 5 , wherein —CH— is —CH—CH— or ethylene.8. The home care composition according to claim 5 , wherein CH— is a linear alkyl group.9. The home care composition according to claim 5 , wherein n=8 to 13.10. The home care composition according to claim 5 , wherein n=9 to 11.11. (canceled)12. The home care composition according to claim 1 , wherein the weight ratio of the alcohol alkoxylate surfactant to the polysaccharide gum is greater than 3:1.13. (canceled)14. (canceled)15. The home care composition according to claim 1 , comprising from about 0.01 wt. % to about 10.0 wt. % of alcohol alkoxylate surfactant.16. (canceled)17. (canceled)18. The home care ...

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Номер записи: 89
01-07-2021 дата публикации

MODIFIED WOOD PRODUCT

Номер: US20210197419A1
Автор: ELS Justin, NG Hans Mann-Kern, PITMAN Andrew John
Принадлежит:

A method of producing a modified wood product is disclosed. The method comprises heating a resin impregnated wood product in a reactor, the resin impregnated wood product comprising source wood impregnated with a resin composition comprising resin, the heating being so as to substantially cure the resin, thereby to produce the modified wood product. The method comprises, during the heating of the resin impregnated wood product in the reactor, introducing water into the reactor. A reactor and a modified wood product are also disclosed. 1. A method of producing a modified wood product , the method comprising:heating a resin impregnated wood product in a reactor, the resin impregnated wood product comprising source wood impregnated with a resin composition comprising resin, the heating being so as to substantially cure the resin, thereby to produce the modified wood product;wherein the method comprises, during the heating of the resin impregnated wood product in the reactor, introducing water into the reactor in the form of a spray or aerosol or mist to add moisture to the surfaces of the resin impregnated wood product, wherein the introducing the water into the reactor comprises introducing the water into the reactor when a core portion of the resin impregnated wood product reaches a temperature in the range 120° C. to 130° C.2. The method according to claim 1 , wherein the introducing the water into the reactor comprises introducing the water into the reactor via one or more nozzles located at or towards a top portion of the reactor.3. The method according to claim 1 , wherein the introducing the water into the reactor comprises introducing a volume of water in the range 20 to 30 millilitres per square meter of surface area of resin impregnated wood product in the reactor.4. The method according to claim 1 , wherein the introducing the water into the reactor comprises introducing water into the reactor at a rate in the range of 700 to 900 millilitres per minute claim ...

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Номер записи: 90
18-09-2014 дата публикации

Process to manufacture frame using renewable wood product(s)

Номер: US20140259957A1
Автор: Griff Reid
Принадлежит: Composite Technology International Inc

A process to manufacture a frame using renewable wood product(s) is described.

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Номер записи: 91
18-09-2014 дата публикации

Urea mixtures and methods for making and using same

Номер: US20140262019A1
Автор: Jeffrey J. Otjen, Melissa J. Cannon, Nayiby Contreras, Robert A. Breyer
Принадлежит: Georgia Pacific Chemicals LLC

Urea mixtures and methods for making and using same are provided. In at least one specific embodiment, the urea mixture can include urea, a urea-aldehyde resin, a liquid medium, and a sugar. The urea mixture can have an aldehyde to urea molar ratio of about 0.2:1 to about 0.7:1. The urea mixture can have a sugar concentration of about 2 wt % to about 8 wt %, based on the combined weight of the urea, the urea-aldehyde resin, the liquid medium, and the sugar.

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Номер записи: 92
06-06-2019 дата публикации

METHOD FOR LIQUID TREATMENT OF A WOOD SPECIES

Номер: US20190168411A1
Автор: Beja Fernandes João Luis, Imsgard Finn, Kjellow Anders Westh, Petersen Benny
Принадлежит: Superwood A/S

The present invention relates to an improved method for impregnating a porous material, such as wood, more specifically a method in which an active ingredient to be deposited within the porous material is dissolved in condensed carbon dioxide and impregnated in the material 111-. (canceled)12. A method for treating a wood species with an active ingredient , the method comprising:providing the wood species in a container;applying pressure, in the container, by providing gaseous carbon dioxide to the container, said container comprising the wood species, at a temperature below the critical point of carbon dioxide to provide a compressed gas;further pressurizing the container to reach a prevailing pressure in the container and to provide condensed carbon dioxide;providing an active ingredient to the container comprising the wood species, wherein the active ingredient is selected from the group consisting of polymers for increasing water resistance, organic and inorganic biocides, aromas, colorants and organic and inorganic salts;maintaining the prevailing pressure for a predetermined period of time while the active ingredient is in the container;increasing the temperature in the container to a temperature above the critical point of carbon dioxide at the prevailing pressure to provide carbon dioxide in supercritical form;maintaining the temperature in the container at a temperature at or above the critical point of carbon dioxide at the prevailing pressure for a second predetermined period of time; andreducing the pressure in the container to atmospheric to complete the treatment of the wood species and to provide carbon dioxide in gaseous form, wherein the treatment of the wood species results in one or more of: the wood species being impregnated with the active ingredient, a compound being extracted from the wood species, the wood species being dyed, or the water resistance of the wood species being increased.13. A method according to claim 12 , wherein the active ...

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Номер записи: 93
28-06-2018 дата публикации

RADIO FREQUENCY TREATMENT TO PHYTOSANITIZE WOOD PACKAGING MATERIALS USED IN INTERNATIONAL SHIPPING

Номер: US20180177904A1
Автор: Hoover Kelli, Janowiak John J.
Принадлежит:

A method for treating wood packaging materials using Radio Frequency heating includes the steps of heating wood packaging materials using RF heating and applying a pressure before the heating or incrementally applying a pressure during the heating until a temperature of the wood packaging materials reaches at least 60° C. and that temperature is maintained for at least 1 minute. 1. A method of treating wood packaging materials (WPMs) using Radio Frequency heating , the method comprising the steps of: a sealed chamber,', 'a RF generator connected to the chamber for applying RF heating treatment to the WPM,', 'a pressurization system for controlling the pressure inside the chamber,, 'providing a RF operating unit includingloading the chamber with a workload of the WPMs;applying a pressure to the chamber during the treatment;treating the WPMs using RF heating until a temperature of the WPMs reaches a predetermined temperature not more than 100° C.; andmaintaining the predetermined temperature for at least 1 minute.2. The method of treating wood packaging materials in accordance with claim 1 , wherein the temperature of the WPMs is an average temperature of the WPMs.3. The method of treating wood packaging materials in accordance with claim 1 , wherein the predetermined temperature is not less than 60° C.4. The method of treating wood packaging materials in accordance with claim 1 , wherein the predetermined temperature is not more than a maximum temperature of 90° C. claim 1 , 80° C. or 70° C.5. The method of treating wood packaging materials in accordance with claim 1 , wherein the predetermined temperature is maintained not longer than a period of 5 minutes claim 1 , 4 minutes claim 1 , 3 minutes or 2 minutes.6. The method of treating wood packaging materials in accordance with claim 1 , wherein the step of applying of the pressure to the chamber comprises maintaining the chamber generally at a first pressure during a first period and changing the pressure in the ...

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Номер записи: 94
04-06-2020 дата публикации

METHOD AND SYSTEM FOR ENSURING THE QUALITY OF A WOOD PRODUCT BASED ON SURFACE IRREGULARITIES USING NEAR INFRARED IMAGING

Номер: US20200171695A1
Автор: Bolton David
Принадлежит: Boise Cascade Company

Near InfraRed NIR technology, including NIR cameras and detectors, is used to accurately identify surface irregularities on a surface of a veneer sheet or other wood product. Based on the identified surface irregularities for a given wood product, one or more actions are taken with respect to wood product or production process to ensure the wood product is put to the most efficient, effective, and valuable use. 1. A method for ensuring the quality of a wood product based on surface irregularities comprising:generating a surface irregularity to greyscale mapping database, the surface irregularity to greyscale mapping database containing data that maps surface irregularities to Near InfraRed (NIR) image greyscale values for one or more wood products;providing an NIR analysis station, the NIR analysis station including one or more sources of illumination positioned to illuminate a surface of a wood product, the NIR analysis station including one or more NIR cameras positioned to capture one or more NIR images of the illuminated surface of the wood product;positioning a wood product to be analyzed in the NIR analysis station such that a first surface of the wood product to be analyzed is illuminated by the one or more illumination sources;capturing, using the one or more NIR cameras, one or more NIR images of the illuminated first surface of the wood product;processing the one or more NIR images of the illuminated first surface of the wood product to generate NIR greyscale images indicating one or more surface irregularities in the illuminated first surface of the wood product;processing the NIR greyscale images using the surface irregularity to greyscale mapping database to identify a level of irregularity of the first surface of the wood product;assigning a grade to the wood product based on the identified level of irregularity of the first surface of the wood product; andbased, at least in part, on the grade assigned to the wood product, taking one or more actions ...

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Номер записи: 95
04-06-2020 дата публикации

METHOD AND SYSTEM FOR ENSURING THE QUALITY OF A WOOD PRODUCT BASED ON SURFACE IRREGULARITIES USING NEAR INFRARED IMAGING AND MACHINE LEARNING

Номер: US20200171696A1
Автор: Bolton David
Принадлежит: Boise Cascade Company

Near InfraRed NIR technology, including NIR cameras and detectors, and machine learning methods and systems, including one or more Machine Learning (ML) based surface irregularity prediction models, are used to accurately identify surface irregularities on a surface of a wood product, such as a veneer sheet or ribbon, and provide irregularity prediction data for the wood product. Based on the irregularity prediction data for a given wood product, one or more actions are taken with respect to wood product or the production process to ensure the wood product is put to the most efficient, effective, and valuable use. 1. A method for ensuring the quality of a wood product based on surface irregularities comprising:training one or more machine learning based surface irregularity prediction models using Near InfraRed (NIR) image data for one or more wood products and determined corresponding irregularities for the one or more wood products;providing an NIR analysis station, the NIR analysis station including one or more sources of illumination positioned to illuminate a surface of a wood product, the NIR analysis station including one or more NIR cameras positioned to capture one or more NIR images of the illuminated surface of the wood product;positioning a wood product to be analyzed in the NIR analysis station such that a first surface of the wood product to be analyzed is illuminated by the one or more illumination sources;capturing, using the one or more NIR cameras, one or more NIR images of the illuminated first surface of the wood product;processing the one or more NIR images of the illuminated first surface of the wood product to generate NIR image data for the illuminated first surface of the wood product;providing the NIR image data for the illuminated first surface of the wood product to the one or more trained machine learning based surface irregularity prediction models;obtaining irregularity prediction data for the wood product from the one or more trained ...

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Номер записи: 96
04-06-2020 дата публикации

METHOD AND SYSTEM FOR ADJUSTING THE PRODUCTION PROCESS OF A WOOD PRODUCT BASED ON A LEVEL OF IRREGULARITY OF A SURFACE OF THE WOOD PRODUCT USING NEAR INFRARED IMAGING

Номер: US20200171697A1
Автор: Bolton David
Принадлежит: Boise Cascade Company

Near InfraRed NIR technology, including NIR cameras and detectors, are used to detect irregularity in the surface of a wood product. Based on the detected irregularities at various locations in a given wood product, one or more actions are taken with respect to a production process used to produce the wood product to ensure the wood product is put to the most efficient, effective, and valuable use. 1. A method for adjusting a production process of a wood product based on surface irregularities comprising:generating a surface irregularity to greyscale mapping database, the surface irregularity level to greyscale mapping database containing data that maps surface irregularities to Near InfraRed (NIR) image greyscale values for one or more wood products;generating an NIR greyscale image to preconditioning level database, the NIR greyscale image to preconditioning level database mapping NIR greyscale images of a surface of a wood product to a preconditioning level of wood source used to produce the wood product;providing an NIR analysis station, the NIR analysis station including one or more sources of illumination positioned to illuminate a surface of a wood product, the NIR analysis station including one or more NIR cameras positioned to capture one or more NIR images of the illuminated surface of the wood product;positioning a wood product to be analyzed in the NIR analysis station such that a first surface of the wood product to be analyzed is illuminated by the one or more illumination sources;capturing, using the one or more NIR cameras, one or more NIR images of the illuminated first surface of the wood product;processing the one or more NIR images of the illuminated first surface of the wood product to generate NIR greyscale images indicating irregularities in the illuminated first surface of the wood product;processing the NIR greyscale images using the NIR greyscale image to preconditioning level database to determine a preconditioning level of wood source ...

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Номер записи: 97
11-06-2020 дата публикации

UV CURABLE SEALANT COMPOSITION AND PROTECTOR APPLIED TO WOOD AND POROUS SUBSTRATES

Номер: US20200181444A1
Автор: Fishel Connor, Fishel Scott, Smith Paul
Принадлежит:

An essentially 100% solids, single-component, UV curable, low-viscosity, penetrating sealant composition for wood substrates and other porous substrates is prepared from an acrylate-methacrylate mixture, a functionalized resin, an unsaturated fatty acid triglyceride oil, and a photoinitiator. The sealant composition may further contain a metal catalyst, an amine synergist, fillers, pigments, dyes, flow and leveling additives, air release chemicals, UV absorbers, hindered amine light stabilizers, fungicides, insect repellents, and/or mold inhibitors. The sealant composition exhibits fast cure times along with resistance to degradation. 1. A substantially 100% solids sealant composition for application to a porous surface which comprises:an acrylate-methacrylate mixture, the acrylate-methacrylate mixture comprising at least an acrylate oligomer and at least a methacrylate oligomer, the acrylate oligomer having a lower molecular weight than the methacrylate oligomer;a functionalized resin having functionality of greater than 2 and a dynamic viscosity between 1,000 to 100,000 centipoise as measured by ASTM D2196;an unsaturated fatty acid triglyceride oil; andan organic or inorganic photoinitiator.2. The sealant composition of claim 1 , wherein the acrylate oligomer is an aliphatic urethane acrylate oligomer and the methacrylate oligomer is an allyl dimethacrylate oligomer.3. The sealant composition of claim 1 , wherein the unsaturated fatty acid triglyceride oil is capable of entering into a free-radical initiated polymerization reaction.4. The sealant composition of claim 1 , further comprising a metal catalyst and an amine synergist claim 1 , wherein the amount of metal catalyst ranges from 0.3% to 1.1% of the total weight of the sealant composition and the amount of the amine synergist ranges from 0.1% to 0.7% of the total weight of the sealant composition.5. The sealant composition of claim 1 , wherein the functionalized resin is an oligomeric acrylate or oligomeric ...

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Номер записи: 98
11-06-2020 дата публикации

FINE PARTICLE SIZE BORIC ACID/UREA DISPERSION, METHOD OF USE IN ENGINEERED WOOD PRODUCT MANUFACTURE, METHOD OF COATING WOOD PRODUCTS AND PRODUCT THEREFROM

Номер: US20200181448A1
Автор: DO Guang T., Freeman Gary M., Sparks Joshua D.
Принадлежит:

An aqueous boric acid/urea dispersion includes insoluble boric acid particles having a median particle size range of less than 44 microns and having a % actives content of boric acid plus urea of 60 wt. % or greater. The boric acid/urea dispersion includes an effective amount of at least one viscosity reducing agent such that the boric acid/urea dispersion has an initial Brookfield 2 rpm viscosity of about 5,000 to about 25,000 centipoise and a three week aged Brookfield 2 rpm viscosity of less than 250,000 centipoise, an optional amount of an alkali metal base, the alkali metal base/boric acid mole ratio in the dispersion ranging up to about 0.01; and the balance water. The boric acid/urea dispersion can be used in the manufacture of engineered wood products like oriented strand board as well as be a part of a waterborne coating formulation to coat wood products to improve fire retardancy. 1. An aqueous boric acid/urea dispersion comprising boric acid particles having a median particle size range of less than 44 microns that has a total actives content of boric acid plus urea of 60% by weight or greater , the boric acid/urea dispersion further comprising:a w/w ratio of boric acid to urea in a range of 19:1 to 1.5:1,an effective amount of at least one viscosity reducing agent such that the boric acid/urea dispersion has an initial static viscosity of about 5,000 to about 25,000 centipoise and a three week aged static viscosity of less than 250,000 centipoise,an optional amount of an alkali metal base, wherein the alkali metal base/boric acid mole ratio in the boric acid/urea dispersion ranges from zero to about 0.01; andthe balance water,wherein the initial and aged static viscosities are measured using a Brookfield RVDVE heliopath viscometer unit equipped with T-spindles and are run at 2 rpm and 25 degrees C.2. The aqueous boric acid/urea dispersion according to claim 1 , wherein the boric acid/urea dispersion has a dynamic viscosity of less than 5 claim 1 ,000 ...

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Номер записи: 99
11-07-2019 дата публикации

ENGINEERED TIMBER PRODUCTS, COMPONENTS AND METHODOLOGIES

Номер: US20190210244A1
Автор: Bosson Warwick, Harrison Roger Frank
Принадлежит: Wood Engineering Technology Limited

A method of drying sticks, a related apparatus, resultant product and its uses where the method involves presenting a plurality of sticks in parallel as a single layer, pressing each stick with a bank of pressing members on and/or into at least one face of the sticks, each with plurality of protuberances, thereby to constrain the sticks against crook, and drying the sticks when so constrained. Preferably each bank of pressing members is an underside of a frame or lattice of a stack of such frames or lattices able to receive such a single layer of sticks between adjacent overlying/underlying frames or lattices, the protuberances preferably being only downwardly directed. 1. (canceled)2. An apparatus for drying a plurality of sticks of square or rectangular cross-section , the apparatus comprising:an underlying frame to laterally receive sticks, andan overlying frame, the overlying frame carrying spaced penetrative members, the overlying frame with spaced penetrative members to penetrate an upper surface of the sticks to be received upon the underlying frame, the sticks to be received by the underlying frame to be constrained by squeezing of the overlying frame comprising of the spaced penetrative members upon the underlying frame.3. The apparatus of claim 2 , wherein the sticks are contiguous on the underlying frame.4. The apparatus of claim 2 , wherein the underlying frame and the overlying frame act as a pair of frames claim 2 , such that a plurality of adjacently arranged pairs of frames are configured as a stack.5. The apparatus of claim 2 , wherein the sticks squeezed onto the underlying frame using the spaced penetrative members of the overlying frame provides for a top surface penetration by at least two of the spaced penetrative members for each stick at each of several positions along a length of the stick.6. The apparatus of claim 5 , wherein the overlying frame carrying the spaced penetrative members is configured such that there are at least three of the ...

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Номер записи: 100