Wood Base Patents (Class 427/393)
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Patent number: 6461469Abstract: A finished product from lignocellulose, such as a length of wood or chipboard, is impregnated with a composition containing a thermosetting resin in a nonaqueous solvent, and a styrene polymer in a nonaqueous solvent. Excess impregnating composition is removed from the impregrnated material. The solvent or solvents are also removed. The thermosetting resin may thereafter be subjected to temperature conditions for polymerization to form a finished product.Type: GrantFiled: September 27, 2001Date of Patent: October 8, 2002Assignee: Windsor Technologies LimitedInventor: Michael Windsor Symons
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Patent number: 6451384Abstract: The invention is directed to a method of tempering fiberboard that includes applying a substantially solvent-free, liquid tempering composition on at least one surface of the fiberboard and curing the tempering composition. The tempering composition includes at least one thermoset material such as one-part moisture cure polyurethane. The tempered fiberboard can be used directly as doorskin.Type: GrantFiled: July 27, 2001Date of Patent: September 17, 2002Assignee: H.B. Fuller Licensing & Financing Inc.Inventors: Benjamin E. Burrows, Albert M. Giorgini
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Publication number: 20020114892Abstract: The present invention relates to a process for the production of derived timber products by applying a storage-stable binder to materials containing lignocellulose and heating this mixture under pressure. These storage-stable binders comprise a polyisocyanate and an amine catalysts. The invention also relates to these storage-stable binders.Type: ApplicationFiled: September 21, 2001Publication date: August 22, 2002Inventors: Theodore Frick, Ernst-Martin Hoppe, Manfred Kapps
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Patent number: 6436485Abstract: The invention relates to a method of applying a powder coating to a substrate (5), in particular a temperature-sensitive substrate such as wood, wood-fiber material, plastic, rubber, cloth, paper or cardboard, wherein a thermoreactive powder is applied as a base layer (6) to the uncoated surface of the substrate (5), and wherein by means of infrared radiation with at least some components in the near and/or short-wave infrared region the powder is warmed throughout to the cross-linking temperature and cured, or is warmed throughout to the gelling temperature and in a subsequent processing step cross-linking is completed and the coating is cured. To generate the infrared radiation in particular halogen bulbs (7) are used in combination with a reflector (8) to reflect the emitted radiation towards the substrate. The halogen bulbs (7) are operated in such a way that the emitted radiation has a flux-density maximum in the near infrared.Type: GrantFiled: September 15, 2000Date of Patent: August 20, 2002Assignee: Advanced PhotonicsInventor: Martin Sedlmeyr
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Patent number: 6432553Abstract: A method of preserving waterlogged materials and more specifically, preserving artifacts that have been submerged in water for long periods of time. A method of treating waterlogged materials that have been subjected to preservation techniques using polyethylene glycol as the preservative, and a method of restoring such materials from the deleterious effects of the glycol.Type: GrantFiled: June 7, 1999Date of Patent: August 13, 2002Assignee: Dow Corning CorporationInventors: Jerome Melvin Klosowski, Charles Wayne Smith, Donny Leon Hamilton
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Publication number: 20020106454Abstract: An ultrahigh molecular weight polymer, such as ultrahigh molecular weight polyisobutylene, is used as an additive to enhance the coating properties of a solvent. The polyisobutylene has a molecular weight of at least 2.5-3.0 million daltons, preferably greater than about 6 daltons, and is provided in a preferred concentration of 0.05 to 0.3%. The solvent can be a medicinal grade mineral oil. Other suitable solvents include hydrocarbon oil and low viscosity, synthetic compositions. In all cases, the coating properties of the solvent are greatly enhanced by the addition of ultrahigh molecular weight polyisobutylene. In another aspect of the invention, ultrahigh molecular weight polyisobutylene is used as an additive to enhance the viscoelasticity of a mineral oil based sunscreen formulation. In still another aspect of the invention, the fibers of a fabric material are coated with an ultrahigh molecular weight polymer to greatly strengthen the fabric.Type: ApplicationFiled: December 26, 2001Publication date: August 8, 2002Applicant: General Technology Applications, Inc.Inventors: Jerry C. Trippe, Albert F. Hadermann, James A. Cole
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Patent number: 6428854Abstract: This invention relates to a new one-component stoving composition, which can be baked at low temperatures without the release of volatile compounds and which also has satisfactory stability when stored at room temperature. The invention also relates to the use of the one-component stoving composition.Type: GrantFiled: August 31, 2000Date of Patent: August 6, 2002Assignee: Bayer AktiengesellschaftInventors: Martin Melchiors, Wieland Hovestadt, Jochen Brück, Theodor Engbert, Hans-Josef Buysch
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Patent number: 6428902Abstract: Pressure impregnation methods for preserving wood. The impregnant combines a wood preservative with a wax-surfactant-water emulsion. A cationic surfactant component made up of two different surfactants is preferred.Type: GrantFiled: August 14, 1995Date of Patent: August 6, 2002Assignee: Chemco Development LLCInventors: Fred J. Amundson, Frank S. Tracino
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Patent number: 6426118Abstract: The present invention is a process for pressure treating wood and includes wood which has been pressure treated by the process. The process comprises infusion into the wood of a solution in water of an anhydride or the analogous acid of an anhydride, followed by removal of moisture from the wood and the infusion of the wood with a molten waxy solid comprising hydrocarbon paraffins or saturated fatty acids. The molten waxy solid then solidifies, filling all voids in the wood.Type: GrantFiled: May 21, 2001Date of Patent: July 30, 2002Assignee: Coating Development Group, Inc.Inventor: Michael A. Barnisin, Jr.
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Patent number: 6423379Abstract: The present invention is directed to a mineral-based coating composition that can be used on a wide range of substrate surfaces. The composition is comprised of a mineral extender, such as a delaminated hydrated aluminum silicate based clays, having an aspect ratio of about 11 to 1, water, a homopolymer polyvinyl acetate emulsion, a co-polymer polyvinyl acetate emulsion, an acrylic emulsion binder containing a metal dioxide and a buffering agent, a surfactant and a defloculant. Also provided is a method of preparing the mineral-based coating composition. The mineral-based coating composition may be applied to various substrate surfaces to form artistic medium surfaces. The present invention also provides a method of making an artistic medium surface using the composition of the present invention.Type: GrantFiled: December 7, 1999Date of Patent: July 23, 2002Inventor: Charles Ewing
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Publication number: 20020088574Abstract: Pulps or papers, especially chemimechanical or thermomechanical pulps or papers, which still contain lignin, have enhanced resistance to yellowing when they contain an effective stabilizing amount of a N,N-dialkylhydroxylamine, an ester, amide or thio substituted N,N-dialkylhydroxylamine or N,N-dibenzylhydroxylamine or an amminium salt thereof. This performance is often further enhanced by the presence of one or more coadditives selected from the group consisting of the UV absorbers, the polymeric inhibitors, the nitrones, the fluorescent whitening agents and metal chelating agents. Combinations of hydroxylamines or their salts, benzotriazole or benzophenone UV absorbers and a metal chelating agent are particularly effective. N,N-Diethylhydroxylamine and N,N-dibenzylhydroxylamine and their acid salts are surprisingly effective for this purpose.Type: ApplicationFiled: January 20, 1999Publication date: July 11, 2002Inventors: RAYMOND SELTZER, DAVID DEVORE, GLEN T. CUNKLE, CYRIL HEITNER, JOHN A. SCHMIDT, PETER F. MCGARRY, JEAN-PIERRE WOLF, RANDALL B. NELSON
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Patent number: 6406749Abstract: A process of chemically modifying wood by impregnating the wood, under vacuum, with ammonia gas; after removal of residual ammonia, and while under pressure, impregnating the ammonia gas impregnated wood with an impregnating composition containing dicarboxylic or tricarboxylic anhydride, partly or fully saponified polyvinyl alcohol and water. The impregnating composition may further and, preferably, include a water-soluble boron compound, such as sodium borate. In the latter case, the boron is resistant to leaching.Type: GrantFiled: November 13, 2000Date of Patent: June 18, 2002Assignee: Windsor Technologies LimitedInventor: Michael Windsor Symons
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Patent number: 6376582Abstract: The wood fiberboard of the present invention comprises wood fibers which have been subjected to an acetylation treatment and wood fibers which have not been subjected to an acetylation treatment bonded together by a binder resin, wherein the content of the wood fibers which have been subjected to an acetylation treatment is 35 to 90% by weight of the total amount of wood fibers which have been treated to an acetylation treatment and wood fibers which have not been subjected to an acetylation treatment.Type: GrantFiled: March 28, 2000Date of Patent: April 23, 2002Assignee: Yamaha CorporationInventors: Ritsuo Iwata, Yoshihiro Hirano, Satoshi Suzuki, Katsunobu Fukuda, Hironori Watanabe
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Patent number: 6368670Abstract: A method of providing a fire barrier that includes coating an opening in a structure with a composition that includes an elastomer. The composition is substantially free of volatile organic compounds and, when dry, exhibits a tensile strength of from about 300 psi to about 1500 psi, at least about 600% elongation, a modulus of from about 200 psi to about 600 psi, and a tensile toughness of greater than 10 in-lb.Type: GrantFiled: March 2, 2000Date of Patent: April 9, 2002Assignee: 3M Innovative Properties CompanyInventors: George W. Frost, George F. Vesley, Biing-Huei Su, Brandon L. Cordts
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Patent number: 6348242Abstract: Low gloss appearance in a coating derived from UV curable powder coatings can be achieved by using UV curable powder containing crystalline components or blends of crystalline and amorphous components and after heat fusing the powders together, allowing the crystalline components in the coating time to flow out and recrystallize to form a matte low gloss finish at a temperature of about the melting point of the crystalline component before curing with UV radiation.Type: GrantFiled: February 16, 2000Date of Patent: February 19, 2002Assignee: Morton International Inc.Inventors: Andrew T. Daly, Richard P. Haley, Eugene P. Reinheimer, Gregory R. Mill
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Patent number: 6339117Abstract: The present invention relates to polymers whitened with optical brighteners obtained by (a) emulsion polymerization of acrylonitrile with or without a comonomer in the presence or absence of a graftable substrate, and (b) addition of an optical brightener before, during, or after the emulsion polymerization.Type: GrantFiled: February 28, 2000Date of Patent: January 15, 2002Assignee: Bayer AktiengesellschaftInventors: Udo Eckstein, Siegfried Korte, Ulrich Feldhues, Hans-Peter Geiger, Bernhard Hunke, Thomas Roick, Günter Sackmann
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Patent number: 6338875Abstract: The invention is high temperature emulsion composition comprising borax and a substantially water-insoluble polymer prepared by aqueous suspension polymerizing a blend of monomers, said blend comprising a plasticizing amount by weight of at least one plasticizing alkyl acrylate monomer, a hardening amount by weight of at least one hardening alkyl acrylate monomer and a crosslinking amount by weight of at least one multi-ethylenically unsaturated monomer, in an aqueous suspension comprising a water-soluble polymer component comprising at least one acrylic polymer having carboxylate functionality, its method of use and coated substrates made therewith.Type: GrantFiled: November 27, 2000Date of Patent: January 15, 2002Assignee: Cook Composites and Polymers Co.Inventors: Steve Boucher, Paul Whyzmuzis, Brenda Taipale, George A Smith, Joseph Sinka, Ching Feng
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Patent number: 6335060Abstract: The present invention provides a curable treating agent and a curing treatment process which provide excellent results with regard to any of heat resistance, water resistance, surface physical properties, and impregnability, and further, involve high productivity. The electron-beam-curable treating agent according to the present invention comprises a high boiling point resin in a ratio of not lower than 10 weight %, and is characterized in that the high boiling point resin includes a high boiling point radical-polymerizable component in a ratio of higher than 90 weight %, wherein the high boiling point radical-polymerizable component includes a specific acrylic derivative in a ratio of not lower than 5 weight %. The electron beam curing treatment process according to the present invention is characterized by comprising the step of irradiating a treating agent with an electron beam under specific conditions, wherein the treating agent includes a specific acrylic derivative.Type: GrantFiled: May 26, 2000Date of Patent: January 1, 2002Assignee: Nippon Shokubai Co., Ltd.Inventor: Rie Inoue
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Patent number: 6335058Abstract: A method of manufacturing a finished product from a length of a lignocellulosic material, such as a length of solid wood or chip board, includes the steps of impregnating the length of lignocellulosic material through its depth with an impregnating composition comprising a mineral oil, a non-aqueous solvent for the material oil such as dichloromethane or super critical carbon dioxide, and a thermosetting resin and, if necessary, a catalyst therefore dissolved in the mineral oil and solvent. Thereafter, the non-aqueous solvent is removed and the product is subjected to an elevated temperature to polymerize the thermosetting resin to bind the mineral oil into the lignocellulosic material.Type: GrantFiled: December 10, 1999Date of Patent: January 1, 2002Assignee: Windsor Technologies LimitedInventor: Michael Windsor Symons
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Patent number: 6316044Abstract: Antimicrobial activity is imparted to the surface(s) of an apparatus or article by polymerizing tert-butylaminoethyl methacrylate in the presence of the apparatus or article by which adhesion of the polymer to the surface(s) is achieved. In a preferred embodiment of the invention the antimicrobial monomer is graft polymerized on the surface(s).Type: GrantFiled: March 17, 2000Date of Patent: November 13, 2001Assignee: Degussa-Huels AktiengesellschaftInventors: Peter Ottersbach, Frank Hill, Christine Anders
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Patent number: 6309492Abstract: A method for coating laminate and composite wood products with a polymer coating. The method includes providing a wood substrate consisting of an engineered or composite wood product, applying a flowable but thixotropic polymer coating material to the surface of the substrate, distributing the polymer coating material evenly across the surface of the wood substrate to create a continuous smooth surface, and allowing the polymer coating material to bond to the surface of the wood substrate to form a hard smooth surface over the wood substrate surface.Type: GrantFiled: September 16, 1998Date of Patent: October 30, 2001Inventor: Marc A. Seidner
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Publication number: 20010033922Abstract: The present invention relates to a wood-polymer composite, particularly wood which has been impregnated with a mixture containing polymerizable organic compounds, and more particularly to a method for preparing a wood-polymer-composite by impregnating wood material and/or wood-based material with a mixture containing polymerizable organic compounds, and most particularly uses thereof.Type: ApplicationFiled: January 18, 2001Publication date: October 25, 2001Inventor: Marc H. Schneider
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Patent number: 6306464Abstract: The strength of lignocellulosic materials is improved by treating them with water-soluble strengthening agents containing sulfonic units, and rendering these agents water-insoluble by reacting them with compounds containing epoxide rings and quaternary ammonium groups. Thus, a substantial reduction or elimination of the bleeding of said strengthening agents from the lignocellulosic materials when touched with wet hands or contacted under humid conditions is achieved.Type: GrantFiled: January 31, 2001Date of Patent: October 23, 2001Inventors: Blair Alex Owens, Dimitris Ioannis Collias, Andrew Julian Wnuk
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Patent number: 6299936Abstract: Thermally curable aqueous compositions comprising a low-acid and an acid-rich polymer component and also a hydroxyalkylated amine are used as binders for shaped articles.Type: GrantFiled: February 17, 2000Date of Patent: October 9, 2001Assignee: BASF AktiengesellschaftInventors: Bernd Reck, Stefan Dreher, Wilhelm Friedrich Beckerle, Eckehardt Wistuba, Joachim Roser, Johannes Türk
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Patent number: 6284321Abstract: Binders for powder coatings are disclosed that contain, solid, unsaturated polyesterurethane (meth)acrylates having a melting temperature of from 35 to 180° C.Type: GrantFiled: November 3, 1999Date of Patent: September 4, 2001Assignee: Solutia Germany GmbH & Co. KGInventors: Gerhard Brindoepke, Dietmar Fink
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Patent number: 6268022Abstract: Machine-profiled edges and corners and other surface discontinuities of heat sensitive workpieces such as wooden cabinet doors are uniformly covered by a coating powder applied electrostatically to the back side of the workpiece first, allowing the powder to wrap around the edges toward the front side, and then applying the coating powder electrostatically to the front side and fusing or fusing/curing the coating powder.Type: GrantFiled: September 3, 1999Date of Patent: July 31, 2001Assignee: Morton International, Inc.Inventors: Grant E. Schlegel, Gregory R. Mill, Paul R. Horinka
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Patent number: 6265027Abstract: A method for treating wood surfaces.Type: GrantFiled: May 15, 2000Date of Patent: July 24, 2001Assignee: Illinois Tool Works, Inc.Inventors: Robert William Johnston, Kimberly Ann Whitley, Louis Paul Schaefer
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Patent number: 6258412Abstract: The present invention is directed to a mineral-based coating composition that can be used on a wide range of substrate surfaces. The composition is comprised of a mineral extender, such as a delaminated hydrated aluminum silicate based clays, having an aspect ratio of about 11 to 1, water, a homopolymer polyvinyl acetate emulsion, a co-polymer polyvinyl acetate emulsion, an acrylic emulsion binder containing a metal dioxide and a buffering agent, a surfactant and a defloculant. Also provided is a method of preparing the mineral-based coating composition. The mineral-based coating composition may be applied to various substrate surfaces to form artistic medium surfaces. The present invention also provides a method of making an artistic medium surface using the composition of the present invention.Type: GrantFiled: June 3, 1997Date of Patent: July 10, 2001Inventor: Charles Ewing
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Patent number: 6248402Abstract: A method for treating wood in which the wood to be treated is placed in a chamber in which a vacuum is produced, where the chamber is filled with a hardening product, in particular a monomer, so as to impregnate the wood by causing the product to penetrate the space between its fibers, where the product is hardened, in particular by polymerization. This method is characterized in that the wood impregnating operation is preceded by a step of controlled thermal treatment.Type: GrantFiled: April 28, 1999Date of Patent: June 19, 2001Assignee: NOW - New Option WoodInventors: René Guyonnet, Pierre Gohar
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Patent number: 6235403Abstract: A wood treatment process is disclosed in which in one aspect the wood is impregnated with a waterborne preservative such as CCA at elevated temperature and pressure. The impregnated wood and excess waterborne preservative are separated while the treatment vessel (8) is pressurized, for example by blowing the preservative out of the vessel at the treatment pressure using a pump (10). Kickback may be segregated from the wood once pressure is reduced after the separation of wood and preservative. In another aspect the wood is impregnated with a waterborne preservative and with oil, each of the impregnating steps being performed under pressure and the oil being heated. If the preservative is one such as CCA which is capable of being fixed to the wood the hot oil may enhance this as well as providing water repellency. The oil may be a process oil.Type: GrantFiled: May 5, 1998Date of Patent: May 22, 2001Assignees: The University of Melbourne, Chemica LimitedInventors: Peter Vinden, Peter R. S. Cobham, Francisco J. Romero
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Patent number: 6235346Abstract: The present invention is a process for pressure treating wood and includes wood which has been pressure treated by the process. The process comprises infusion into the wood of a solution in water of an anhydride or the analogous acid of an anhydride, followed by removal of moisture from the wood and the infusion of the wood with a molten waxy solid comprising hydrocarbon paraffins or saturated fatty acids. The molten waxy solid then solidifies, filling all voids in the wood.Type: GrantFiled: June 17, 1999Date of Patent: May 22, 2001Assignee: Coating Development Group, Inc.Inventor: Michael A. Barnisin, Jr.
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Patent number: 6231931Abstract: A method of coating a wooden substrate or surface comprising the steps of depositing a layer of ultraviolet light curable polymer in an uncured form to at least one surface of a wooden substrate; and curing said polymer with an amount of UV energy sufficient to polymerize said polymer. The method optionally comprising the further steps of: scuffing the surface of the cured polymer; depositing a second layer of ultraviolet light curable polymer in an uncured form to the scuffed surface; and curing the second layer of ultraviolet light curable polymer with an amount of UV energy sufficient to polymerize said second layer. The method also contemplates a further step comprising scuffing the surface of the cured polymer; and depositing a top coat thereon.Type: GrantFiled: March 2, 1999Date of Patent: May 15, 2001Inventors: John S. Blazey, Gary Robertson, Joseph C. Sgro
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Patent number: 6221434Abstract: A surface treatment method for imparting -oil- and/or water-repellency, comprising the step of applying to the surface to be treated compositions comprising at least one compound having the formula III ACF2O—(CF2O)n(C2F4O)m—CF2—B III where n=1-20, m=1-20 and A and B are reactive functional groups chosen independently from the group constituted by: a) CONHR, where R=CnH2n+1 with n=1-30, b) CH2OH, c) CONH(X)SiR1n(OR′)3−n, where n=0-2, R1 and R′, identical or different, are CrH2r+1 alkyl radicals, where r=1-4, and X is a bifunctional alkyl spacer of the (CHR″)m type, where m=1-20, and R″ can be H or CH3, optionally containing heteroatoms, d) —[CH2O(R′″O)p]k—P(O)(OH)3−k, where R′″ is an alkylene radical, for example C2H4 or C3H6, p=1-10 and k=1, 2, the composition comprising the compound at a suitable concentration and being aType: GrantFiled: November 29, 1999Date of Patent: April 24, 2001Assignee: Ausimont S.p.A.Inventors: Mario Visca, Silvana Modena, Simonetta Fontana, Giovanni Gavazzi
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Patent number: 6217942Abstract: A method is provided for producing a coated article comprising: (a) preparing a solution of lignin; (b) mixing the lignin solution with a phenol oxidizing enzyme; (c) incubating the mixture from said step (b) under conditions and for a time sufficient to form a solution of a desired viscosity; (d) contacting or spreading the mixture from the step (c) on an article to be coated; and (e) allowing the coating to set onto the article by subjecting the article to conditions and for a time sufficient to form a coating on the surface of the article.Type: GrantFiled: December 8, 1998Date of Patent: April 17, 2001Assignee: Genencor International, Inc.Inventors: Rob Bolle, Wolfgang Aehle
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Patent number: 6217939Abstract: A wood treatment process in which lignocellulosic materials are treated for several hours in a liquid bath of oil with the exclusion of oxygen. The liquid bath at that time has a temperature of 180 to 260° C. By thermal action the wood substance is converted, so that some properties of these materials are altered. Resistance against wood-destroying fungi, for example, is improved.Type: GrantFiled: November 17, 1999Date of Patent: April 17, 2001Assignee: Martin MenzInventors: Michael Sailer, Andreas Otto Rapp
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Patent number: 6211293Abstract: A polyfunctional polycarbodiimide compound contains at least four molecular chains bonded independently to a backbone. Each of the molecular chains contains a carbodiimido (—N═C═N—) group. The polyfunctional carbodiimide compound can be produced by reacting (a) an isocyanate compound having at least one carbodiimido group and at least one isocyanate group with (b) a polyol, polyamine and/or aminoalcohol having at least four hydroxyl, primary amino and/or secondary amino groups in a molecule. Also disclosed are a resin composition containing the polyfunctional polycarbodiimide compound as a crosslinking agent; and a treatment method of an article, which makes use of the resin composition.Type: GrantFiled: May 21, 1999Date of Patent: April 3, 2001Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Michiei Nakamura, Hiroyuki Shimanaka, Yoshitaka Wakebe, Tatsuo Kawamura, Eiichi Sugawara, Ken Okura, Masayuki Takahashi, Nobuo Takezawa
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Patent number: 6207289Abstract: A thermoplastic compound useful in filling pores and voids in wooden materials, particularly edge regions, wherein the thermoplastic compound comprises a blend of two copolyesters and optionally fillers, wherein the first copolyester has a melting point of 140° C. to 260° C. and a glass transition temperature of −10° C. to 80° C., and wherein the second copolyester has a melting point of 120° C. to 190° C. and a glass transition temperature of −70° C. to 10° C. Also, a method of filling pores in a wooden material comprising using a thermoplastic compound having a softening point of 140° C. to 200° C., an open time of 2 to 15 seconds, and a viscosity number of 30 to 150 ml/g, with the thermoplastic compound preferably being a blend of two different copolyesters, wherein the application of such thermoplastic compounds enable the surfaces of chipboard panels and the like to be smoothed in a continuous one-pass process.Type: GrantFiled: January 22, 1999Date of Patent: March 27, 2001Assignees: Henkel Kommanditgesellschaft auf Aktien, Huels AktiengellsellschaftInventors: Horst Hoffmann, Jutta Stiehl, Dirk Hoppe
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Patent number: 6191213Abstract: Low VOC penetrating compositions for staining and protecting porous substrates such as wood, concrete, cement, brick and the like, comprising aqueous dispersions of polyurethane-ureas.Type: GrantFiled: December 5, 1997Date of Patent: February 20, 2001Assignee: The Sherwin-Williams CompanyInventors: Revathi R. Tomko, Barbara J. Varone, Robert A. Martuch
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Patent number: 6187384Abstract: The invention relates to binders BM for one-component coating systems, comprising a polyurethane alkyd resin component (A) composed of: (a) from 5 to 50% by weight of a mixture of: (a1) from 90 to 30 parts by weight of an unsaturated C6 to C30 fatty acid containing at least two nonconjugated double bonds, and (a2) from 10 to 70 parts by weight of an is unsaturated C6 to C30 fatty acid containing at least two conjugated double bonds as esterified polymer side chains of the polyurethane alkyd resin component (A) and (b) from 95 to 50% by weight of polyurethane units as polymer main chains of the polyurethane alkyd resin component (A).Type: GrantFiled: May 1, 1998Date of Patent: February 13, 2001Assignee: BASF Coatings AGInventors: Guido Wilke, Dittmar Grapatin, Heinz-Peter Rink
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Patent number: 6187387Abstract: The invention relates to a method of protecting wood against light-induced degradation by treatment with a stain or impregnation which penetrates the surface of the wood comprising a) at least one organic solvent; b) a hindered amine compound of formula I or II where G1 and G2 are independently alkyl of 1 to 4 carbon atoms or are together pentamethylene, Z1 and Z2 are each methyl, or Z1 and Z2 together form a linking moiety which may additionally be substituted by an ester, ether, hydroxy, oxo, cyanohydrin, amide, amino, carboxy or urethane group, E is oxyl or hydroxyl, X is an inorganic or organic anion, and where the total charge of cations h is equal to the total charge of anions j.Type: GrantFiled: March 11, 1999Date of Patent: February 13, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Bolle, Jean-Pierre Wolf, Raymond Seltzer
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Patent number: 6186200Abstract: A method of manufacturing tiles from waste wood uses round crosscut wood slices, a binder, and a filler. The slices, all generally of a thickness, are placed on the flat bottom of a die within side walls. Adhesive is applied to the slices and the die is filled with a mixture of the binder and the filler. The die contents are hot pressed to achieve the required tile thickness. The tile is ejected from the die and then maintained at room temperature for not more than 72 hours. The face side of the tile is ground and the dimensions of the tile are brought within the required tolerances.Type: GrantFiled: November 30, 1998Date of Patent: February 13, 2001Assignee: Polymate Ltd.Inventors: Oleg Figovsky, Vladimir Teper
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Patent number: 6146705Abstract: A structural mat matrix comprises (a) a substrate which consists essentially of from 80% to 99% by weight fiberglass fibers and from 20% to 1% by weight wood pulp and (b) a binder which consists essentially of from 80% to 95% by weight urea formaldehyde and from 20% to 5% by weight acrylic copolymer. The binder bonds the substrate fiberglass fibers and wood pulp together and comprises from 5% to 15% by weight of said matrix, preferably 10% by weight of the matrix.Type: GrantFiled: May 28, 1999Date of Patent: November 14, 2000Assignee: Elk Corporation of DallasInventor: Darrell Heine
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Patent number: 6142198Abstract: Application of vibration and/or compression to kiln-dried wood increases the retention and penetration of preservatives in the wood.Type: GrantFiled: January 21, 1999Date of Patent: November 7, 2000Assignee: Mississippi State UniversityInventors: Terry L. Amburgey, H. Michael Barnes, Michael G. Sanders
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Patent number: 6143367Abstract: The invention relates to a component system for a two-component coating composition comprising a hydroxy-functional binder or a mixture of hydroxy-functional binders, tris(alkoxycarbonylamino)triazine or a mixture of tris(alkoxycarbonylamino)triazines and free isocyanates or a mixture of free polyisocyanates. It is characterized in that a first component (I) is formed at least from the hydroxy-functional binder or the mixture of hydroxy-functional binders and in that a second component (II) is formed at least from the free isocyanates or the mixture of free polyisocyanates, where the tris(alkoxycarbonylamino)triazine or the mixture of tris(alkoxycarbonylamino)triazines is alternatively a constituent of the first component (I), the second component (II) or both components (I) and (II).Type: GrantFiled: July 27, 1999Date of Patent: November 7, 2000Assignee: BASF Coatings AGInventors: Fritz Bartol, Hubert Baumgart, Ulrike Rockrath
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Patent number: 6123795Abstract: A method of preparing a sheet of a lignocellulosic material such as paper for the manufacture of a finished product, includes the steps of impregnating the sheet with an impregnating composition comprising a composition for the chemical modification of the lignocellulosic material containing a dicarboxylic anhydride or a tricarboxylic anhydride dissolved in a suitable non-aqueous solvent, and a composition for resinating the lignocellulosic material containing an isocyanate thermosetting resin dissolved in a suitable non-aqueous solvent. Thereafter any excess of the impregnating composition is removed from the impregnated lignocellulosic material and the non-aqueous solvent or solvents are removed. Subsequently the sheet of lignocellulosic material so treated may be used in a method of forming an article by adhering a sheet so treated to a second sheet optionally so treated, with a suitable adhesive material. The result is a product which may be used as a building board or the like.Type: GrantFiled: November 20, 1998Date of Patent: September 26, 2000Assignee: Windsor Technologies LimitedInventor: Michael Windsor Symons
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Patent number: 6110263Abstract: The use of a wood preservative for the afterprotection of wood, comprising a copper compound, a polyamine and an inorganic fungicide, and a bandage for the afterprotection of wood, which contains this wood preservative, is described.Type: GrantFiled: August 28, 1998Date of Patent: August 29, 2000Assignee: Dr. Wolman GmbHInventors: Reimer Goettsche, Wendelin Hettler, Michael Breuer, Hans-Peter Seelmann-Eggebert
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Patent number: 6063883Abstract: A wood article is submitted to a vacuum in an autoclave to remove air that it contains. Then, a solution which contains a water-soluble cross-linkable prepolymer, a polymerization initiator and optionally a wood preservative is introduced into the autoclave. Polymerization to form a polymeric network in the wood article is carried out in an atmosphere which may be substantially free of oxygen, while the optionally present preservative is chemically fixed to the wood. The result is a wood article with a permanently reduced hardness and an increased moisture content at equilibrium.Type: GrantFiled: December 30, 1997Date of Patent: May 16, 2000Assignee: Hydro-QuebecInventors: Andre Besner, Alain Vallee, Jean-Fran.cedilla.ois Labrecque, Roland Gilbert
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Patent number: 6045865Abstract: The present invention relates to an enzymatic process for treating a solid wood or laminated solid wood article in a liquid medium containing an oxidase enzyme, an impregnating substance and an oxidizing agent so as to fixate the impregnating substance in the wood, thereby enhancing the effect of the impregnating substance.Type: GrantFiled: March 16, 1999Date of Patent: April 4, 2000Assignee: Novo Nordisk A/SInventors: Claus Felby, Tomas Tage Hansen
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Patent number: H1967Abstract: A method of improving the adhesion of an ink jet ink formulation to a substrate, which method includes adding to the ink jet ink formulation an amount of a chelate of a transition metal or a chelate of a mixture of transition metals effective to improve the adhesion of the ink jet ink formulation to the substrate; printing the substrate with the chelate-containing ink jet ink formulation; and treating the printed substrate with heat for a time and at a temperature to further improve the adhesion of the ink jet ink formulation to the substrate. The ink jet ink formulation typically will include a diluent system and colorant. The chelate typically will be present in the ink jet ink formulation in a range of about 0.001 up to about 20 percent by weight, based on the total weight of the chelate-containing ink jet ink formulation. A particularly desirable chelate is zirconium lactate. The present invention also provides an article and a substrate produced by the foregoing method.Type: GrantFiled: July 2, 1998Date of Patent: June 5, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventor: Jerome A. Woolf
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Patent number: RE36742Abstract: .[.Wood.]. .Iadd.A heat sensitive substrate .Iaddend.is .[.electrostatically.]. coated with a thermosetting powder coating system in which a mixture of a self-curing epoxy resin and a catalyst therefore is extruded and .Iadd.pulverized and .Iaddend.a low temperature curing agent .[.are both.]. .Iadd.a .Iaddend.pulverized and the powders are blended with conventional additives to make a coating powder which is deposited on .[.a wooden.]. .Iadd.the .Iaddend.substrate and heated to cure. The mixture of resin and catalyst does not cure within the extruder but it is made to cure at low temperatures by the separate addition of the curing agent. A small amount of the low temperature curing agent, insufficient to cause substantial curing during extrusion may be used in place of the catalyst.Type: GrantFiled: March 17, 1999Date of Patent: June 20, 2000Inventors: Glenn D. Correll, Andrew T. Daly, Joseph J. Kozlowski, Richard P. Haley, Jeno Muthiah, Paul R. Horinka, Eugene P. Reinheimer