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| Number | Title | Issue Date |
| 7807224 | Process for treatment of wood using a carrier fluid under high pressure without damaging the wood A process for treatment of wood susceptible to damage and having a length that is over the critical length with a fluid under high pressure is disclosed. The process is conducted in a way so that the fluid is not allowed to enter into the liquid form inside the wood... | 10/05/2010 |
| 7754284 | Method for treating lignocellulosic material A method for heat treating lignocellulosic material with a water-soluble preservative, such as preferably borate, involves the modification of the lignocellulosic material by heat to a moisture content of 0 to 5%, and preferably as close as possible to 0%. The therm... | 07/13/2010 |
| 7367166 | Door skin, a method of etching a plate, and an etched plate formed therefrom The present invention relates to a door skin comprising an exterior surface having outer portions lying on a first plane, spaced grooves recessed from the plane of the outer portions, and tonal portions having a planar area and a plurality of spaced depressions rece... | 05/06/2008 |
| 7300705 | Methods for esterifying hydroxyl groups in wood Methods for esterifying hydroxyl groups in cellulose, hemicellulose, and lignin in wood are described, wherein the wood is chosen from loblolly, slash, shortleaf, longleaf or radiata pines. Methods can include solvent drying techniques and heating provided by electr... | 11/27/2007 |
| 7258899 | Process for preparing metal coatings from liquid solutions utilizing cold plasma A method for depositing metals, metal blends and alloys onto substrate surfaces, including microporous substrates utilizing a plasma operation undertaken at room temperature. In the process, a liquid solution of a monomer or comonomer precursor having a metallic com... | 08/21/2007 |
| 6821631 | Method and composition for treating substrates A method of treating substrates, such as wood, including the steps of applying an alkali silicate solution to one or more substrates and applying an alkali borate solution with boric oxide (B2O3) content to the substrates. Substrates that have ... | 11/23/2004 |
| 6602802 | Method of forming a porous film on a substrate An organic-inorganic hybrid film is deposited on a substrate by introducing, into a vacuum chamber, a gas mixture of a silicon alkoxide and an organic compound and generating a plasma derived from the gas mixture. Then, a hydrogen plasma process is perfor... | 08/05/2003 |
| 6558743 | In situ fluoropolymer polymerization into porous substrates The present invention relates to in situ polymerization of fluoropolymer into porous substrates, to improve resistance to degradation by wetting and staining, and wood, to improve resistance to degradation, staining and warping.... | 05/06/2003 |
| 6406749 | Process for producing a modified lignocellulosic material 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 dicarbo... | 06/18/2002 |
| 5736196 | Fluid cure of epoxy-based coating powder A coating powder based on an epoxy resin is applied to a substrate and fused and cured thereon. Curing is effected by exposing the coating powder at the point of application to a fluid curative or cure catalyst, e.g., by exposing the fusing coating powder... | 04/07/1998 |
| 5731036 | Method for preserving wood A method is described for preserving wood comprising infiltrating the wood with gaseous carbon disulfide and impregnating the wood with an aqueous solution comprising a copper source, and dimethylamine.... | 03/24/1998 |
| 5707752 | Ceramic coatings to protect cellulosic products A cellulosic substrate is impregnated using a plasma gun. A plasma spray of a ceramic material is applied to a first surface of the cellulosic substrate. The ceramic material improves various properties of the first surface of the cellulosic substrate.... | 01/13/1998 |
| 5480679 | Prevention of enzyme mediated discoloration of wood Methods for preventing non-fungal discoloration of logs, wood and wood products that are free of non-fungal discolorations are provided. The wood is treated with a phytotoxic agent in order to prevent enzyme-mediated discoloration of the wood. The wood su... | 01/02/1996 |
| 5393562 | Method of preserving and storing books and other papers Books and other documents that are produced wholly or partly on paper of wood pulp origin are preserved by storing in an enclosed space containing a controlled atmosphere including about 0.05 to 10 ppm ammonia gas. This invention and all United States pat... | 02/28/1995 |
| 5330847 | Treatment of wood and wood-based materials A method of treating moisture containing wood including the step of exposing the timber or wood to a vaporous azeotrope of an organ-boron component and an alcohol at a temperature below the alcohol's boiling point. The organ-boron compound hydrolyses with... | 07/19/1994 |
| 5318802 | Modifying a wood material utilizing formaldehyde polymer and sulfur dioxide In a method of treating a raw wood material with a formaldehyde polymer in the presence of sulfur dioxide at a reaction temperature within a reaction vessel to obtain a modified wood material, sulfur dioxide is supplied into the reaction vessel when a gas... | 06/07/1994 |
| 5143748 | Timber surface improving treatment process A surface treatment process for improving surface properties of a timber as to wetness by exposing the timber to a plasma mixture of an inert gas and a reactive gas at a near atmospheric pressure. Prior to being exposed to the plasma mixture, the timber i... | 09/01/1992 |
| 5024861 | Gaseous or vapor phase treatment of wood with boron preservatives The invention comprises a process for the preservation of timber with a boron based compound, such as trimethyl borate. The timer is dried to a low moisture content, is then subjected to a vapor of the boron compound in a suitable treatment vessel, and af... | 06/18/1991 |
| 4857364 | Intumescent compositions and the use thereof The intumescent compositions according to the invention are reaction mixtures which are obtained on mixing and reacting the following components: (A) specific polyether polyols, (B) specific polyester polyols, (C) specific phosphorus-containing polyols, (D) in... | 08/15/1989 |
| 4678686 | Treatment of formaldehyde-containing wood panel products A process for treating wood panels is disclosed where the panels are placed in a closed treatment chamber and the chamber then evacuated. This removes free formaldehyde from panel pores and produces a subatmospheric pressure within the pores. The chamber ... | 07/07/1987 |
| 4597940 | Preservative treatment of wood This invention concerns a treatment for preserving or protecting moist wood against attacks from microorganisms (fungi) with the use of evaporable or sublimable ammonium salts. The protection is obtained by distributing the salts close to the wood so that... | 07/01/1986 |
| 4418101 | Method of making thermoplastic hardboard from acetylated mat A wet-felted mat of wood fibers is acetylated by coating the mat with a quantity of acetic anhydride ranging from 5 to 70% by volume of the mat and heating the mat at a temperature of from 150° to 300° F. while confining substantially all of the acetic ... | 11/29/1983 |
| 4388378 | Thermoplastic hardboard from acetylated mat A wet-felted mat of wood fibers is acetylated by coating the mat with a quantity of acetic anhydride ranging from 5 to 70% by volume of the mat and heating the mat at a temperature of from 150° to 300° F. while confining substantially all of the acetic ... | 06/14/1983 |
| 4385085 | Process for reinforcing inorganic fabrics with fluoroplastics Inorganic-organic composites suitable for use as separators in alkaline storage batteries requiring gas permeability, thermal stability, chemical stability and good structural strength and a process for making them are disclosed. The composites are more t... | 05/24/1983 |
| 4233929 | Apparatus for the treatment of timber An apparatus for the treatment of timber comprises a vessel having at least three chambers arranged in series for passage of the timber therethrough on conveyor belts or the like. There is means for drawing a vacuum in each of the end chambers and means f... | 11/18/1980 |
| 4071642 | Method of reinforcing porous materials A board-like porous material is coated with a polymerizable monomer over its upper and lower surfaces and is thereby immediately impregnated with the monomer. The material is then placed into shallow containers. A specified number of the containers contai... | 01/31/1978 |
