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| Number | Title | Issue Date |
| 4567115 | Pressure impregnation of wood poles for preservation A treatment for wood poles, as used for telecommunications and electric power poles, to reduce surface hardening comprises modifying the standard treatment solution by the addition of a polymer of ethylene oxide. A surface active agent is a further possib... | 01/28/1986 |
| 4504520 | Process and apparatus for producing wood heads of golf clubs A process for producing the wood head of a golf club by impregnating a wood head workpiece with a resin to give durability to the wood head, the process comprising the steps of forming the workpiece so that the hitting surface thereof extends in parallel ... | 03/12/1985 |
| 4500568 | Preservation of structures For use in strengthening of natural or artificial structures, e.g. buildings, monuments, ruins, there is drawn under vacuum into the structure a liquid of low viscosity and comprising a monomer or monomers containing some polymer which may be polymerized ... | 02/19/1985 |
| 4466998 | Wood impregnation Water-borne preservative salts are used to impregnate wood by the empty-cell pressure impregnation method without the precipitation of water-borne salts such as chromium, copper and arsenic when wood sugars enter the treating solution during the kickback ... | 08/21/1984 |
| 4433031 | Preservation of wood Wood is preserved with a water-based treating solution containing a halogenated phenol wood preservative such as pentachlorophenol, a phenolic resin prepolymer such as a phenol formaldehyde prepolymer, and a coupling or solubilizing agent for enhancing th... | 02/21/1984 |
| 4413024 | Method for chemical treatment of woods Disclosed is a method for the chemical treatment of woods, which comprises introducing a chemical solution into a pressure vessel charged with wood so that the wood is entirely dipped in the chemical solution, heating the chemical solution to a temperatur... | 11/01/1983 |
| 4399195 | Preservation of wood Wood is preserved with a water-based treating solution containing a halogenated phenol wood preservative such as pentachlorphenol, a phenolic resin prepolymer such as a phenol formaldehyde prepolymer, and a coupling or solubilizing agent for enhancing the... | 08/16/1983 |
| 4384014 | Impregnation of porous articles The invention provides an in-line method of impregnating a porous article, particularly a metal casting, which comprises placing the article on a support, placing a cover thereover in sealing relation with support to define an impregnation chamber, applyi... | 05/17/1983 |
| 4382105 | Water soluble pentachlorophenol and tetrachlorophenol wood treating systems containing fatty acid amine oxides This invention relates to new and improved chlorinated phenol water soluble wood treating compositions and methods for preservation of wood or products made from wood. In the general practice of this invention, wooden objects are treated with water solubl... | 05/03/1983 |
| 4364976 | Method of preparing modified wood Disclosed is a method of preparing modified wood, comprising the successive steps of impregnating a wood in two stages, using phenolic alcohols at the first stage and fire retardants at the second stage, drying it, and heat treating to obtain the end prod... | 12/21/1982 |
| 4337720 | Apparatus for treatment of wood An apparatus is disclosed for use in the preservative treatment and/or drying or coloring of wood. The apparatus consists of an enclosed vessel which is divided into two chambers by an intermediate wall portion. Wood to be treated is placed in one chamber... | 07/06/1982 |
| 4313977 | Reduced volatility of a halogenated phenol in wood The amount of vapor of a halogenated phenol released by wood treated with the halogenated phenol is reduced by contacting the treated wood with an organic compound having cationic groups capable of forming a water-insoluble halogenated phenoxide salt. For... | 02/02/1982 |
| 4313976 | Composition and process for coloring and preserving wood Method and composition for simultaneously coloring and preserving wood by a single application of a contacting solution comprising any one of several known water soluble chemical preservatives containing any or all of the following heavy metals: copper, c... | 02/02/1982 |
| 4303726 | Methods and compositions for preservation of timber Fungicidal compositions comprising at least one organometallic compound of aluminum and/or boron, at least one divalent metal and at least one carboxylic acid group. The compositions are useful in preserving timber.... | 12/01/1981 |
| 4301215 | Process for the preparation of impregnated wood A process for preparing plastic wood which comprises impregnating wood with a mixture containing (1) an organopolysiloxane having groups which are capable of condensation and/or containing SiC-bonded alkenyl group having an average molecular weight of at ... | 11/17/1981 |
| 4301217 | Method of flameproofing wood with inorganic ammonium salts and dicyandiamide/formaldehyde reaction products A process for flameproofing wood is claimed, which comprises treating the wood with aqueous preparations which contain (a) at least one water-soluble ammonium salt of a non-volatile inorganic acid, e.g. ammonium sulfate or ammonium phosphate, (b) at least one ... | 11/17/1981 |
| 4296152 | Method and composition for treating wood with pentachlorophenol A composition for impregnating wood with pentachlorophenol is prepared by dissolving pentachlorophenol in a petroleum fraction at least 50% of which will distill above 485° F., and mixing the resulting solution with water to produce a finely divided disp... | 10/20/1981 |
| 4291101 | Wood fibrous material and a method for improving the qualities thereof Wood fibrous materials which are impregnated with one or more compounds selected from a group consisting of polyoxyalkylene glycol monoacrylates and polyoxyalkylene glycol, monomethacrylates, followed by curing the impregnated impregnant, are splendid in ... | 09/22/1981 |
| 4259378 | Wood treatment process The surface of an impregnated wood material having deposits of a water-insoluble treating chemical thereon as a result of the impregnation treatment, is cleaned by forming an ammoniacal liquor in situ on the surface of the wood material, dissolving the su... | 03/31/1981 |
| 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 |
| 4225637 | Process for wood treatment The present invention provides a process for the treatment of wood material impregnated with an aqueous ammoniacal solution of water-insoluble treating chemical and having deposits of treating chemical on its surface. The process comprises submerging the ... | 09/30/1980 |
| 4187346 | Controlled permeation process for fireproofing wood Fireproofing of wood and the variety of hardwoods typically utilized in the manufacture of furniture is provided by a process of controlled permeation of a solution composed of a combination of a halide salt of a Group I or Group II metal of the Periodic ... | 02/05/1980 |
| 4181764 | Weather resistant structure and method of making A rail comprising, an elongated wooden core, a weather and abrasion resistant protective coating surrounding the core in contact relation therewith, and a plurality of one-way valve like perforations in the coating for releasing vapor from the core throug... | 01/01/1980 |
| 4174412 | Structures and structural members made wholly or partly of wood A wooden part of a structure or structural member, e.g. a telegraph pole, that is exposed to the atmosphere is impregnated with wood preservative by a vacuum impregnation process. The exposed wooden part of the pole is surrounded by a closely fitting, flu... | 11/13/1979 |
| 4165409 | Method of fabricating wood composite panels having enhanced fire retardancy What is disclosed is a method of fabricating wood composite panels having enhanced fire retardancy. The panels so fabricated have hard, durable finished surfaces which allow machine finishing without the concurrent loss in fire retardancy due to the finis... | 08/21/1979 |
| 4165400 | Self-emulsifying anaerobic composition A self-emulsifying anaerobic-curing composition is disclosed. The composition is rendered self-emulsifying by incorporating certain anionic and/or nonionic surfactants in a concentration range of about 0.25 to about 10.0 percent. The preferred anionics co... | 08/21/1979 |
| 4156043 | Impregnation of fluid-permeable bodies A body, or stack of bodies, made of timber or of other organic fluid-permeable material is impregnated with an impregnant by introducing the body or stack into a receptacle of fluid-impermeable material through an opening therein, the flexible receptacle ... | 05/22/1979 |
| 4142009 | Method of treating timber with composition having a colloidal pigment An agent for stabilization of a decorative finish is incorporated in a timber preservative composition comprising a preservative e.g. fungicide, insecticide or fire retardant in an organic solvent e.g. white spirit, chlorinated hydrocarbon such as methyle... | 02/27/1979 |
| 4133920 | Method for reinforcing the edge region of a plate formed of a porous material by means of a reinforcement agent A method of reinforcing an edge region of a plate formed of a porous material by means of a reinforcement agent wherein the plate is immersed in a bath containing a reinforcement agent. Air contained in the plate is withdrawn at least from one plate surfa... | 01/09/1979 |
| 4133862 | Method of inhibiting and/or eradicating marine fungal growth with obtusastyrene Marine fungal growth is inhibited and/or eradicated in wood by contacting e wood with obtusastyrene whose formula is: ##STR1##... | 01/09/1979 |
| 4127686 | Process for treating wood A process for treating wood which process comprises boiling the wood with a solution containing a surface active agent and an alkali, shifting the boiled wood to a pressure boiler, permeating the surface active agent and dilute alkali solution forceably i... | 11/28/1978 |
| 4062991 | Treatment of wood An agent for stabilization of a decorative finish is incorporated in a timber preservative composition comprising a preservative e.g., fungicide, insecticide or fire retardant in an organic solvent e.g. white spirit, chlorinated hydrocarbon such as methyl... | 12/13/1977 |
| 4060953 | Artificial and natural structures Voids in an artificial or natural structure are filled with a hardenable material in a liquid or semi-liquid state by surrounding the structure or a part of the structure containing the voids by a closely fitting, fluid-impermeable covering and sealing bo... | 12/06/1977 |
| 4025663 | Method of producing a translucent panel A translucent panel is made up of one or more pieces of translucent wood. Each piece of wood is cut to less than one-half inch in thickness in the direction of the grain of the wood and is then impregnated with an initially liquid polymerizable material c... | 05/24/1977 |
| 4017980 | Apparatus and process for treating wood and fibrous materials Apparatus and process for treating wood and other fibrous materials within a hermetically sealed, heat insulated chamber comprising means for applying a predetermined mechanical pressure to said fibrous materials, means for controlling the conditions with... | 04/19/1977 |
| 4008342 | Wood treatment with ammoniacal liquor and carbon dioxide A method of preventing the deposition of preservative solids onto the surface of the material being treated from an ammoniacal treating liquor of the type wherein deposition of the treating chemical within the wood requires evaporation of the ammonia from... | 02/15/1977 |
| 3987219 | Method for impregnation of wood by pressure surges during immersion Unit loads of wood, surrounded by a small quantity of liquid, are impregnated in sturdy vessels provided with a cover. After or during an impregnation period under vacuum, the impregnation is completed by subjecting the liquid and the wood to pressure sur... | 10/19/1976 |
| 3968276 | Process for the preservation of wood A process for the treatment of wood of all kinds to impregnate the wood fully to its core with a resin component system, simultaneously with, or without, a flame retarding agent, or preservative, the process involving enclosing the wood in a chamber, evac... | 07/06/1976 |
