Wood Base Patents (Class 427/440)
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Patent number: 10486329Abstract: The present disclosure relates, according to some embodiments, to methods and systems for impregnating wood with a polymer solution and products thereof. In some embodiments, the present disclosure relates to a method of processing a wood piece to generate a wood product, the method comprising: (a) placing the wood piece into a reactor having a chamber pressure of a vacuum environment; (b) exposing the wood piece to a polymer solution; (c) performing an iterative process where each cycle of the iterative process comprises a pressurizing period during which the chamber pressure is increased to an increased chamber pressure and a stabilizing period during which the chamber pressure is monitored to measure a chamber pressure decrease, if any; (d) when the decrease of chamber pressure during the stabilizing period is less than or equal to the certain threshold change, normalizing the reactor chamber to a normalized pressure; and (e) setting the wood piece to generate the wood product.Type: GrantFiled: January 20, 2017Date of Patent: November 26, 2019Assignee: CHON INVESTMENT HOLDINGS LIMITEDInventor: Nam Tran Hoai
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Patent number: 9717246Abstract: The present invention provides improved solutions and related methods for effecting enhanced penetration of wood preservatives through the synergistic action of an amine oxide employed in combination with an alkoxylated oil and a buffering agent. Preferred materials and quantities are recited. The system of the present invention may be employed with artificially stiffened wood.Type: GrantFiled: May 24, 2016Date of Patent: August 1, 2017Assignee: Kop-Coat, Inc.Inventors: Ronald W. Clawson, Jr., Charles N. Cheeks
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Patent number: 9161533Abstract: Azelaic acid or its derivatives or analogs induce a robust and a speedier defense response against pathogens in plants. Azelaic acid treatment alone does not induce many of the known defense-related genes but activates a plant's defense signaling upon pathogen exposure.Type: GrantFiled: October 22, 2012Date of Patent: October 20, 2015Assignees: The University of Chicago, UT-BattelleInventors: Jean T. Greenberg, Ho Won Jung, Timothy Tschaplinski
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Publication number: 20150086719Abstract: The present invention relates to a method for reducing or preventing the attack of marine woodborers on wood situated in a marine environment characterised by impregnating said wood with a biocidal composition comprising traloypril.Type: ApplicationFiled: March 6, 2013Publication date: March 26, 2015Applicant: Janssen Pharmaceutica, NVInventors: Mark Arthur Josepha Van der Flaas, David Bruce Helmer, Jan Remi Nys
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Publication number: 20140370320Abstract: According to the present invention there is provided a preservative formulation for use in treating wood or other cellulosic formulations, said formulation comprising: at least one biocidal metal compound; at least one organic compound; and a carrier. Preferably, the preservative formulation is copper/(tebuconazole/propiconazole) in a ratio of about 1:3 w/w; the carrier is preferably aqueous or spirit-based.Type: ApplicationFiled: December 19, 2012Publication date: December 18, 2014Inventors: David Humphrey, Brett Skewes
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Patent number: 8906466Abstract: Methods of making esterified lignocellulosic materials and resulting compositions and articles are disclosed.Type: GrantFiled: June 17, 2010Date of Patent: December 9, 2014Assignee: Eastman Chemical CompanyInventors: Jarvey Eugene Felty, Jr., Timothy L. Guinn, David Chris Spencer, John Michael Allen
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Publication number: 20140342172Abstract: Disclosed is a wood preservative composition comprising: an ester of boric acid; pentachlorophenol (PCP); and American Wood Preservative Association's (AWPA) P9 Type A solvent. The composition is useful for reducing insect and microbial decay in wood. Further disclosed are methods of making and using such compositions.Type: ApplicationFiled: December 30, 2011Publication date: November 20, 2014Inventor: Gordon Murray
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Patent number: 8889038Abstract: This invention relates to wood preservatives containing copper complexes and calcium ions, zinc ions or calcium and zinc ions for protection of wood, cellulose, hemicellulose, lignocellulose, cellulosic materials and articles derived from cellulosic materials from decay caused by fungi. The calcium ions, zinc ions, or calcium and zinc ions improve the penetration of copper preservative agent into the interior of a treated material or article.Type: GrantFiled: December 18, 2008Date of Patent: November 18, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Albert Gordon Anderson, Mark A. Scialdone
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Publication number: 20140242404Abstract: The present invention relates to a wood preservative formulation comprising a biocidal agent which is a copper or zinc ion complexed with an amino compound selected from the group consisting of ammonia, a water soluble amine or alkanolamine and an aminocarboxylic acid and a stabilizer, as well as to aqueous treatment solutions comprising such a formulation and methods of treating wood or other cellulosic material utilising said formulation.Type: ApplicationFiled: May 2, 2014Publication date: August 28, 2014Applicant: ARCH TIMBER PROTECTION LIMITEDInventors: Kevin HUGHES, Craig Andrew MARS, Andrew HUGHES
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Patent number: 8808868Abstract: A stain resistant, oil and water repellent copolymer comprising a copolymer prepared from fluorinated (meth)acrylate and amine salts of (meth)acrylic acid, and a method of providing stain resistance, oil and water repellency to substrates and a treated substrate.Type: GrantFiled: November 21, 2011Date of Patent: August 19, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Siddhartha Shenoy, Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, John Russell Crompton, Jr.
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Publication number: 20140202356Abstract: Material treatment compositions for various materials and methods of treating the same is disclosed. A material treatment composition includes at least one silane-containing material, at least one base-containing material, and at least one solvent to enhance the strength of a material contacted by the composition.Type: ApplicationFiled: March 25, 2014Publication date: July 24, 2014Inventors: Edwin Neal, John Christopher Cameron
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Publication number: 20140193587Abstract: Disclosed are methods and compositions pertaining to the preservation of wood using one or more noble gasses in conjunction with wood preservatives.Type: ApplicationFiled: November 8, 2011Publication date: July 10, 2014Inventors: William B. Carlson, Gregory D. Phelan
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Publication number: 20140154420Abstract: This invention is directed to a copolymer comprising fluorinated (met)acrylates, alkyl methacrylates, ethoxylates (meth)acrylates, and alkyl amino (meth)acrylates. These copolymers are capable of providing improved oil and water repellency to hard substrates while also maintaining its stability in a mixture of organic solvents.Type: ApplicationFiled: November 5, 2013Publication date: June 5, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: JOHN CHRISTOPHER SWOREN
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Publication number: 20140154519Abstract: A solvent-based non-aqueous fluorinated methacrylate polymer comprising repeating units in any sequence from (1) at least one fluorinated methacrylate, and (2) at least one non-fluorinated alkyl acrylate and (3) at least one non-fluorinated hydroxyalkyl methacrylate, provided that a) the repeating unit of fluorinated methacrylate is present in a range of about 40%-80% by weight of total monomers added, b) the repeating unit of non-fluorinated alkyl acrylate is present in a range of about 10%-35% by weight of total monomers added, and c) the repeating unit of non-fluorinated hydroxyalkyl methacrylate is present in a range of about 5%-25% by weight of total monomers added, and d) the total of all repeating units is 100% by weight.Type: ApplicationFiled: November 5, 2013Publication date: June 5, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Michael Henry Ober, John Christopher Sworen, Ernest Byron Wysong, Kathleen L. Kanetsky
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Publication number: 20140147691Abstract: The present invention relates to a preservative formulation for use in treating wood or other cellulosic materials, said formulation comprising: at least one biocidal metal compound; at least one preservative; and an aqueous carrier, wherein the preservative formulation has an uptake in the sapwood of less than about 220 l/m3 yet achieves substantially full penetration of the sapwood. Preferably, the preservative formulation is copper/tebuconazole in a ratio of about 25/1 w/w; and the wood is around 25 mm in thickness—for instance, decking timber.Type: ApplicationFiled: June 29, 2012Publication date: May 29, 2014Applicant: ARCH WOOD PROTECTION PTY LTDInventors: David Humphrey, Brett Skewes, Angelo Hrastov, Drago Bagaric, Peter Hausler, Shane McFarling, Greg Jensen, Steve Koch, Noel Koskela, Troy Justice
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Publication number: 20140127523Abstract: The present invention relates to functionalized polyorganosiloxanes or silanes for the treatment of lignocellulosic materials.Type: ApplicationFiled: April 18, 2012Publication date: May 8, 2014Applicant: MOMENTIVE PERFORMANCE MATERIALS GMBHInventors: Johannes Gerardus Petrus Delis, Egbert Klaassen, Jörg-Walter Hermann, Holger Militz, Carsten Mai, Malte Pries, Roland Wagner, Karl-Heinz Sockel, Karl-Heinz Stachulla, Karl-Heinz Käsler, Gunnar Hoffmüller
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Patent number: 8647750Abstract: Wood products, specifically wood commonly used in construction including dimension lumber, pressure treated pine, composite wood materials such as plywood, particle board, and wafer board, and samples of paper and fabric were variously treated with concentrations of sodium silicate (Na2O.SiO2) also known as water glass. Cellulosic materials including dimension lumber, plywood, particle board, wafer board, paper, and fabric were treated with sodium silicate (Na2O.SiO2) in concentrations ranging from 400-0.04 g Na2O.SiO2/kg water. To overcome the disadvantages of sodium silicate, sodium silicate treated samples were further treated to convert the water soluble sodium silicate to a water insoluble form, thereby overcoming the disadvantages of water solubility, and rendering the material effective for internal and external uses.Type: GrantFiled: July 3, 2012Date of Patent: February 11, 2014Inventors: K. M. Slimak, Robert A. Slimak
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Publication number: 20140004265Abstract: This invention relates to wood preservatives containing copper complexes that significantly reduce the decay of wood, cellulose, hemicellulose, and lignin caused by fungi and insects. The copper complexes include a chelating compound that has amide functional groups derived from hydration of a cyanoethylated compound or carboxylic acid functional groups derived from hydrolysis of a cyanoethylated compound, or both types of groups.Type: ApplicationFiled: September 3, 2013Publication date: January 2, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: ALBERT GORDON ANDERSON, MARK A. SCIALDONE
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Publication number: 20130252010Abstract: Preservation of cellulose based products, such as wood, may be accomplished in an environmentally friendly manner by esterification of the wood with rare saccharides, thereby rendering the wood unfavorable for microorganism based degradation.Type: ApplicationFiled: March 26, 2012Publication date: September 26, 2013Inventor: Sung-Wei Chen
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Patent number: 8512815Abstract: A process for the acetylation of wood comprising submerging the wood in an acetylation fluid under pressure, and subsequently heating the wood under controlled conditions to initiate two distinct exothermic reactions. The process permits the simultaneous upgrading of large quantities of commercial wood sizes having a natural durability class 4 or class 5 to a unique product of durability class 1 or class 2.Type: GrantFiled: January 30, 2009Date of Patent: August 20, 2013Assignee: Titan Wood LimitedInventor: Kapil Girotra
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Publication number: 20130203929Abstract: The invention relates to a reaction product UA of at least one cyclic urea U and at least one multifunctional aldehyde A which reaction product has as substituents on the carbonyl carbon atoms of the aldehyde A at least one kind of functional groups selected from the group consisting of hydroxyl groups —OH and alkoxy groups —OR characterised in that the groups —OR comprise at least two kinds of alkoxy groups —OR1 and —OR2, where R1 and R2 are both selected from the group consisting of linear, branched or cyclic alkyl groups having from one to twelve carbon atoms, where R1 and R2 may be the same or may be different from each other, to a process of making these, and to a method of use as crosslinker in coating compositions.Type: ApplicationFiled: September 23, 2011Publication date: August 8, 2013Inventors: Ram B. Gupta, Lawrence A. Flood, Urvee Y. Treasurer, Barry A. Lawless, Colin Brogan
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Publication number: 20130189442Abstract: This invention relates to a process to make a reaction product UA of at least one multifunctional aldehyde A with at least one cyclic urea U, by mixing the at least one multifunctional aldehyde A with the at least one cyclic urea U in the presence of at least one alcohol R1—OH, and optionally, at least one solvent that has no reactive groups which may react with aldehyde groups, —CO—NH— groups, or hydroxyl groups, to effect an addition reaction to obtain a solution of a product UA, where R1 is selected from the group consisting of linear, branched or cyclic alkyl groups having from one to twelve carbon atoms, to the reaction product obtained by this process, and to a method of use thereof as crosslinker for coating compositions.Type: ApplicationFiled: September 23, 2011Publication date: July 25, 2013Inventors: Ram B. Gupta, Lawrence A. Flood, Urvee Y. Treasurer, Barry A. Lawless, Colin Brogan
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Publication number: 20130171365Abstract: 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.Type: ApplicationFiled: November 29, 2012Publication date: July 4, 2013Applicant: Eastman Chemical CompanyInventor: Eastman Chemical Company
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Publication number: 20130171358Abstract: 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.Type: ApplicationFiled: November 29, 2012Publication date: July 4, 2013Applicant: Eastman Chemical CompanyInventor: Eastman Chemical Company
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Publication number: 20130171364Abstract: 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.Type: ApplicationFiled: November 29, 2012Publication date: July 4, 2013Applicant: Eastman Chemical CompanyInventor: Eastman Chemical Company
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Patent number: 8475880Abstract: A process and apparatus for treatment of wood, typically moist wood, using a heated bioester derived from vegetable oil or animal fat. The bioester exhibits a decreased viscosity versus other methods of heated oil treatment thereby providing for deep penetration of the heated bioester into the wood.Type: GrantFiled: January 3, 2008Date of Patent: July 2, 2013Assignees: Serex, Valuqat S.E.C.Inventors: Abdelkader Chaala, Ahmed Koubaa
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Patent number: 8460761Abstract: The present invention relates to a method for the reduction of the formaldehyde emission of wood-base materials by application of nitrogen-containing compounds, wherein (i) a mixture which comprises at least one polyamine and, if appropriate, up to 20% by weight, based on the mixture, of urea is applied to the wood-base material; (ii) polyamine is applied on or in the particle or fiber cake; (iii) polyamine is applied to the coating substrate used for surface finishing and/or (iv) polyamine is applied to the exposed areas; the polyamines having a molecular weight of at least 500 g/mol and at least 6 primary or secondary amino groups.Type: GrantFiled: January 12, 2007Date of Patent: June 11, 2013Assignee: BASF SEInventors: Eva Rüba, Stephan Weinkötz, Michael Schmidt, Michael Finkenauer, Christian Beil, Ralph Lunkwitz
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Patent number: 8460758Abstract: This invention is directed to a process for the preparation of a crosslinker composition, comprising the steps of providing a mixture of an aliphatic alcohol A having at least one hydroxyl group and from 1 to 10 carbon atoms, with at least one multifunctional aldehyde C having at least two aldehyde groups —CHO to form a mixture AC, heating the mixture AC to convert at least a part of the multifunctional aldehyde C to its hemiacetal or to its acetal to form a mixture (AC)?, adding to the mixture (AC)? least one cyclic urea U or the educts to produce the said cyclic urea U in situ, which cyclic urea U has at least one unsubstituted >NH group, and reacting the mixture thus obtained to form a chemical bond between the nitrogen atom of the at least one unsubstituted >NH group of the at least one cyclic urea U5 and the carbon atom of the least one aldehyde group —CHO of the multifunctional aldehyde C, and coating compositions comprising the said crosslinker composition.Type: GrantFiled: December 5, 2008Date of Patent: June 11, 2013Assignee: Cytec Technology Corp.Inventors: Lawrence A. Flood, Barry A. Lawless
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Patent number: 8460759Abstract: The present invention provides wood preservative compositions comprising micronized particles. In one embodiment, the composition comprises dispersions of micronized metal or metal compounds. In another embodiment, the wood preservative composition comprises an inorganic component comprising a metal or metal compound and organic biocide. When the composition comprises an inorganic component and an organic biocide, the inorganic component or the organic biocide or both are present as micronized particles. When compositions of the present invention are used for preservation of wood, there is minimal leaching of the metal and biocide from the wood.Type: GrantFiled: September 29, 2008Date of Patent: June 11, 2013Assignee: Osmose, Inc.Inventors: Robert M. Leach, Jun Zhang
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Patent number: 8455107Abstract: By treatment with hydrophobins, cellulosic materials such as paper, cardboard, cotton or, especially, wood-based materials, such as solid wood, glued wood products or particle board, can be effectively protected against absorption of and attack by water and/or moisture.Type: GrantFiled: February 27, 2008Date of Patent: June 4, 2013Assignee: BASF SEInventors: Esther Gabor, Andreas Buthe, Jürgen Eck, Franz Kaufmann, Hans-Jörg Koch, Guido Meurer
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Publication number: 20130136849Abstract: The invention relates to sub-micron compositions, and methods of preparing such compositions, in particular for the treatment of substrates against biological degradation biological pests.Type: ApplicationFiled: August 1, 2011Publication date: May 30, 2013Applicant: MATTERSMITHS TECHNOLOGIES LIMITEDInventor: Nigel Paul Maynard
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Patent number: 8337994Abstract: A method for providing improved moisture protection to a wood board flooring comprising a plurality of solid wood components which together form the wood board, such that the wood board has a first surface and a second surface, the method comprising: applying a coating to at least one of the first and second surfaces of the wood board, the coating being substantially free of water and solvents.Type: GrantFiled: May 24, 2011Date of Patent: December 25, 2012Assignee: Havco Wood Products, LLCInventor: Gopalkrishna Padmanabhan
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Patent number: 8318877Abstract: A copolymer composition comprising monomers copolymerized in the following percentages by weight: (a) from about 20% to about 95% of a monomer, or mixture of monomers, of formula (I): CnF2n+1(CH2)x[(CF2CF2)y(CH2CH2)z]m-L-C(O)—C(R)?CH2??(I) wherein R is H, Cl, F or CH3, L is O, S, NH, S—(CH2)rO, S—(CH2)rNH, OC(O)NH—CH2CH2O, NHC(O)NHCH2CH2O, S—(CH2)rOC(O)NHCH2CH2O, or S(CH2)rNHC(O)NHCH2CH2O, and (b) from about 5% to about 80% of at least one of: (i) an alkyl (meth)acrylate monomer having a linear, branched or cyclic alkyl group of from about 6 to about 18 carbons; or (II) a monomer of formula (II) (R2)2N—R3—O—C(O)—C(R)?CH2??(II) wherein R is H, Cl, F or CH3, each R2 is independently a C1 to C4 alkyl; and R3 is a divalent linear or branched C1 to C4 alkylene; and wherein the nitrogen is from about 40% to 100% salinized; or (iii) a mixture thereof.Type: GrantFiled: May 20, 2008Date of Patent: November 27, 2012Assignee: E.I. du Pont de Nemours and CompanyInventors: Weiming Qiu, Anilkumar Raghavanpillai, Peter Michael Murphy, Jessica Louise Flatter
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Patent number: 8221893Abstract: Wood products, specifically wood commonly used in construction including dimension lumber, pressure treated pine, composite wood materials such as plywood, particle board, and wafer board, and samples of paper and fabric were variously treated with concentrations of sodium silicate (Na2O.SiO2) also known as water glass. Cellulosic materials including dimension lumber, plywood, particle board, wafer board, paper, and fabric were treated with sodium silicate (Na2O.SiO2) in concentrations ranging from 400-0.04 g Na2O.SiO2/kg water. To overcome the disadvantages of sodium silicate, sodium silicate treated samples were further treated to convert the water soluble sodium silicate to a water insoluble form, thereby overcoming the disadvantages of water solubility and rendering the material effective for internal and external uses.Type: GrantFiled: November 16, 2007Date of Patent: July 17, 2012Inventors: Karen M. Slimak, Robert A. Slimak
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Patent number: 8216644Abstract: Methods of darkening and preserving wood, including cut wood, are described herein. The methods comprise treating wood, including cut wood, with a solution containing a cell signaling agent to darken wood. Also described herein are methods for preserving the color of wood comprise treating wood, including cut wood, with a solution containing a cell signaling agent inhibitor. Wood, including cut wood, prepared by such methods are further described herein.Type: GrantFiled: November 2, 2007Date of Patent: July 10, 2012Assignee: Purdue Research FoundationInventors: David Marshall Porterfield, Daniel L. Cassens
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Publication number: 20120164239Abstract: A composition for treating wood-based material including at least one C1-C7 monocarboxylic acid salt or C1-C7 monocarboxylic acid or a mixture thereof as active agent against deteriation of wood. The composition also includes alkyd emulsion of high unsaturated fatty acid content and/or aluminum ion containing compound in the form of polyaluminum formate in a same aqueous liquid carrier as the C1-C7 monocarboxylic acid salt or C1-C7 monocarboxylic acid or a mixture thereof.Type: ApplicationFiled: November 25, 2009Publication date: June 28, 2012Inventors: Juha Estakari, Toivo Mertaniemi, Jari Jussila, Juha Kuusisto, Reijo Saunamäki, Norberto Mancuso
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Publication number: 20120156515Abstract: A stain resistant, oil and water repellent copolymer comprising a copolymer prepared from fluorinated (meth)acrylate and amine salts of (meth)acrylic acid, and a method of providing stain resistance, oil and water repellency to substrates and a treated substrate.Type: ApplicationFiled: November 21, 2011Publication date: June 21, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Siddhartha Shenoy, Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, John Russell Crompton, JR.
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Publication number: 20120121809Abstract: The present invention discloses a composition and method for the treatment of substrates such as, for example, wood. The inventive composition and method are useful for the treatment, protection and maintenance of wood and other similar materials.Type: ApplicationFiled: October 27, 2011Publication date: May 17, 2012Inventor: Mark Vuozzo
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Patent number: 8178211Abstract: The invention is directed to the use of a specific class of compounds in the treatment of wood, to a method of treating wood, and to the wood obtained by said method. The black insoluble polymer which forms after oxidative polymerisation of this class of compounds is able to color the wood through and through in a homogeneous fashion and cannot be rinsed off or leached with water or solvent and is stable upon UV radiation. In addition it was found that the treated wood of the present invention has a strong resistance against wood degrading fungi.Type: GrantFiled: December 17, 2007Date of Patent: May 15, 2012Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TnoInventors: Jacobus Eversdijk, Michael Fritz Sailer
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Patent number: 8173681Abstract: The present invention relates to the use of the compound A) 4-(2,2-difluoro-1,3-benzodioxol-4-yl)pyrrole-3-carbonitrile(fludioxonil) as a microbicide for the protection of engineering or industrial materials, to mixtures containing such compound, and to the use of such mixtures for the protection of engineering or industrial materials.Type: GrantFiled: November 25, 2004Date of Patent: May 8, 2012Assignee: Syngenta Corp. ProtectionInventors: Johann Steiner, Amber Paula Marcella Thys, Mark Arthur Josepha Van Der Flaas
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Patent number: 8173224Abstract: The invention relates to a process for impregnating wood or wood based material. A working solution is preheated to a temperature above the atmospheric boiling point (“a super hot temperature”) above the atmospheric boiling point (“a super hot temperature”) of the working solution, at an elevated pressure sufficient to maintain the working solution in the liquid phase. The working solution is contacted with a wood or wood based material at a super hot temperature and an elevated pressure to cause impregnation of the solution into the wood or wood based material. The impregnated wood or wood based material and any remaining working solution, waste material and/or by-products are then separated.Type: GrantFiled: August 25, 2005Date of Patent: May 8, 2012Assignee: Titan Wood LimitedInventors: Kourosh Nasheri, Gavin James Durbin
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Patent number: 8168304Abstract: The present invention provides wood preservative and flame retardant compositions having low leachability comprising micronized boron compounds and, optionally, one or more organic biocides which may be micronized. Also provided is a method for applying the composition to wood and wood products comprising impregnating the wood with the composition.Type: GrantFiled: January 21, 2010Date of Patent: May 1, 2012Assignee: Osmose, Inc.Inventors: Jun Zhang, Wenjin Zhang, Robert M. Leach
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Publication number: 20120003491Abstract: A composition for surface treatment of timber and wood products that provides protection against insect damage to all surfaces without any need for a secondary insecticide treatment of one or more new, untreated surfaces generated by post-treatment processing operations including sawing, cutting, drilling, beveling, planing, sanding and/or a combination thereof, comprising one or more non-repellent insecticides.Type: ApplicationFiled: March 25, 2010Publication date: January 5, 2012Applicant: Zelam LimitedInventors: Peter James Hayward, Christopher Molloy, Wallace James Rae, Andre Frederick Siraa
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Publication number: 20110257289Abstract: The present invention relates to the use of AB block copolymer composition as a surface coating wherein the composition comprises (a) an AB block copolymer; and (b) a liquid medium and wherein the AB block copolymer comprises: (a) a substantially hydrophobic block A, and (b) a substantially hydrophilic block B wherein the hydrophobic block A comprises one or more monomer of formula (A) wherein R is H or C1 to C4 alkyl; Z is O, P or N; and R? is selected from the group comprising: C1 to C18 linear or non linear alkyl; C1 to C18 alkylamino alkyl; C1 to C18 dihydroxyalkyl; C1 to C18 silylalkyl; epoxy alkyl, phosphoryl or phosphoryl alkyl; a styrene based monomer; a vinyl phosphonate or phosphoric acid monomer; and wherein the liquid medium comprises either: (i) water; (ii) an organic solvent; (iii) an organic solvent substantially free from water; or (iv) an organic solvent and water; and wherein: the liquid medium further optionally comprises one or more additive, surfactant or wetting agent.Type: ApplicationFiled: April 1, 2011Publication date: October 20, 2011Applicant: Chamelic LtdInventors: Simon Biggs, Gaelle Baquey, Maggy Manguian, Sasha Heriot
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Patent number: 8034462Abstract: Process for the chemical treatment of lignocellulose materials, in particular of at least one piece of wood, characterized in that said materials are subjected to impregnation by a chemical agent comprising hydrocarbonaceous chains, this agent being chosen from mixed anhydrides, except for the mixed anhydride of acetic/benzoic acid, said agent being suitable for providing covalent grafting of a plurality of hydrocarbonaceous chains to said materials.Type: GrantFiled: July 23, 2010Date of Patent: October 11, 2011Assignee: LapeyreInventors: Michel Magne, Silham El Kasmi, Maxime Dupire, Marie Morard, Carlos Vaca-Garcia, Sophie Thiebaud-Roux, Jerome Peydecastaing, Elisabeth Borredon, Antoine Gaset
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Patent number: 7993709Abstract: A process for treating lignocellulosic material, such as wood for example, the process including the steps of: a) providing lignocellulosic material; b) evaluating parameters of the lignocellulosic material; c) preparing the lignocellulosic material; d) heating the lignocellulosic material in a treatment chamber following a given profile based on parameters of the lignocellulosic material; e) stabilizing the lignocellulosic material; and f) cooling down the lignocellulosic material. The process enables to improve the quality of the wood being treated, while ensuring a greater repeatability and uniformity of coloring results, and overcoming drawbacks associated with conventional torrefaction methods.Type: GrantFiled: September 27, 2005Date of Patent: August 9, 2011Assignee: 9103-7366 Québec Inc.Inventor: André Brunet
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Publication number: 20110159185Abstract: The present invention discloses a composite wood processing method and equipment for unidirectionally pressurizing and filling wood. Original ducts of wood which transport water and nutrients are used primarily to make wood into the composite wood by a unidirectional pressurization method. The processing method puts the wood longitudinally into a pressure vessel, allowing front end parts of the wood to be connected with atmosphere. Next, the wood is sealed with the pressure vessel and a solution is pressurized and filled into the pressure vessel, such that the solution can enter into the wood through the ducts of wood that transport water and nutrients. The composite wood processing method utilizes the original ducts of wood transporting water and nutrients; therefore, the composite wood can be formed by lower pressure and with a saving of energy, thereby having multiple advantages of fast processing, stability, labor saving and time saving.Type: ApplicationFiled: December 30, 2009Publication date: June 30, 2011Inventor: Rung-Tai FAN
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Patent number: 7964287Abstract: Preservative compositions for wood products are described. The compositions include at least one boron-containing material, such as but not limited to boric anhydride, and at least one silane-containing material, such as but not limited to methyltrichlorosilane. Optionally, at least one solvent, such as tetrahydrofuran, pentane, or water, may also be employed in the compositions. The compositions impart protection to the treated wood products, especially damage caused by exposure to water and insects.Type: GrantFiled: May 5, 2009Date of Patent: June 21, 2011Assignee: Dow Corning CorporationInventor: Michael M. Thompson
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Patent number: 7964069Abstract: A device for galvanic coating of a piston has a pot-shaped interior for accommodating the piston and an electrolyte fluid, a holder device for fixing the piston in place, a cover that is structured like a shutter and leaves only the surfaces of the piston that are to be coated uncovered, a first electrical contact that is connected with an anode and with the plus pole of a direct voltage source, and a second electrical contact that connects the piston with the minus pole of a direct voltage source. The piston can be simply and quickly attached to the holder device, since the holder device is in plate shape, and has an oblong centering device, the length of which corresponds to the radial inside diameter of the piston to be coated so that the piston can be pushed onto the centering device by way of its underside.Type: GrantFiled: August 30, 2007Date of Patent: June 21, 2011Assignee: MAHLE International GmbHInventors: Rudolf Bergmann, Kurt Nikolei
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Publication number: 20110076412Abstract: An apparatus and method for thoroughly soaking wood for use in the grilling or preparation of food. The apparatus being capable of accepting and soaking wood in the form of wood planks, wood chunks, or wood chips. The apparatus in a form of a tank which holds the cooking wood plank in liquid for any amount of time, ensuring that the plank absorbs the liquid evenly and for a long enough period for proper cooking. Other items can be added to the liquid while soaking, such as seasonings, sauces, or other wood types. These flavors will meld with the liquid in the tank and evenly distribute the flavor to the cooking plank.Type: ApplicationFiled: September 29, 2010Publication date: March 31, 2011Inventor: Larry J. Schieszer