Wood Base Patents (Class 427/393)
  • Patent number: 5538670
    Abstract: The invention concerns a method and a preservative for protecting wood against decay. According to the method wood is treated with a wood preservative capable of preventing the growth and spread of fungi, said preservative containing at least one complexing agent which binds at least a portion of those metals, typically iron and manganese, naturally occurring in wood that are essential to the growth of fungi. The complexing agents employed can be, e.g., ethylenediaminetetra-acetate, ethylene diamine-di-o-hydroxyphenylacetate a polyphospate or a siderophore produced by a microorganisms. The wood preservative used in the method is water-borne and specific to the decay fungi attacking wood.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: July 23, 1996
    Assignees: Kymmene Oy, Koskisen Oy, Metsalitto Osuuskunta
    Inventors: Anne-Christine Ritschkoff, Liisa Viikari, Leena Paajanen, Tiina Mattila-Sandholm
  • Patent number: 5534305
    Abstract: A wood processing composition comprising a dimensional stabilizer which penetrates wood and restrains its swelling and shrinkage to prevent cracking and to give it dimensional stability, and a hardening filler composed of synthetic resins which hardens after penetrating wood to prevent the dimensional stabilizer from flowing away from said wood, fills the cavity of the wood to restrain its shrinkage, and protects the wood against decay and damage by termites. It preferably further contains a flame retardant consisting of at least one of a phosphoric acid compound and dicyandiamide, and a water-soluble flame-retardant solution containing urea and a 37% aqueous solution of formaldehyde by weight. Wood is impregnated with the composition by appropriate means and, after drying, it may be impregnated with a surface reinforcing synthetic resin. The wood as processed is free of any unnatural color, is harmless, and retains a durable surface which is characteristic of wood.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: July 9, 1996
    Assignee: Az Company
    Inventors: Satoshi Fujiki, Hideo Kamata
  • Patent number: 5529812
    Abstract: The present invention concerns a method of manufacturing decorative board meeting exceptionally high standard concerning abrasion resistance, scratch resistance and impact resistance and which for this pruposes is varnished, electron-beam cured to 60-9.5%, is subjected to a pressing treatment and finally it is electron-beam cured to 100% to provide the disired abrasion resistance, gloss, and surface finish.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: June 25, 1996
    Inventor: Djorn Keding
  • Patent number: 5506001
    Abstract: A method of treating wood by impregnation of the wood with wood-treating-compositions containing compounds which contain elements selected from copper, chromium and arsenic (CCA) and oxyalkylene polymer additives provides improved properties to the treated wood, better control of oxyalkylene polymer distribution, and reduced leaching of the CCA.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 9, 1996
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Frank M. S. Ma, Marcel Ayotte
  • Patent number: 5504145
    Abstract: Water dispersible, one component, self crosslinkable poly(urethane-urea) composition that is stable and capable of curing at room temperature is prepared by forming a prepolymer comprising an alcoholized drying oil; a diisocyanate, a polyalkylene ether polyol, and a dihydroxy containing alkanoic acid polyol; neutralizing the prepolymer; contacting the neutralized prepolymer with water and diamine wherein the alcoholized drying oil has a sufficient content of monoglycerides to allow for chain extension in step (C) and the poly(urethane-urea) self-crosslinks upon drying. The waterborne poly(urethane-urea) composition exhibits good chemical resistance, adhesion, abrasion, and high gloss properties when used as a coating.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: April 2, 1996
    Assignee: The Thompson Minwax Company
    Inventor: Urvee Y. Treasurer
  • Patent number: 5500253
    Abstract: Crosslinkable aqueous-based coating compositions are described which are covalently bonded to a wooden surface to which they are applied. The compositions contain a crosslinkable polymer, a mono and/or polyethylenically unsaturated monomer which can be graft polymerized onto cellulose molecules present in said wooden surface, a water soluble peroxy free radical polymerization catalyst, a source of cations capable of creating free radical sites in said cellulose molecules and, optionally, a crosslinking agent for said crosslinkable polymer. The coating may be air dried under ambient conditions to provide a crosslinked coating which is chemically bonded to the underlying wooden surface.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: March 19, 1996
    Assignee: James A. Bolton
    Inventors: Mohan L. Sanduja, Irene Berlina, Carl Horowitz, Paul Thottathil
  • Patent number: 5480680
    Abstract: A method is provided for effecting a color change in wood or a wood-grained article, and the article prepared thereby. The method includes the steps of applying to a nitrocellulose-finished wood article a composition that includes a water-based dye or pigment and a water-based varnish or lacquer over the nitrocellulose coating, without physically or chemically stripping the nitrocellulose layer. In an alternative embodiment, a wood-grained article is refinished by application of the water-based dye or pigment and a water-based varnish or Lacquer to its surface.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: January 2, 1996
    Assignee: Furniture Medic, Inc.
    Inventor: Todd T. Vieyra
  • Patent number: 5476686
    Abstract: A wood protection composition comprising whey saponified with an alkali. The saponification may be carried out using caustic soda solution or sodium carbonate. In particular, diluted whey is used. The wood protection composition is suitable primarily for the treatment of wood shavings for use as insulating material in building construction. A method of manufacturing a wood protection composition according to the present invention is also disclosed.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: December 19, 1995
    Inventor: Hubert Fritz
  • Patent number: 5476681
    Abstract: The invention is a rigid polyurethane foam to which a base stock lubricating oil made of at least 55 weight percent paraffinic carbons and less than 10 weight percent aromatic carbons has been added as a hydrophobic agent protecting the polyurethane foam from reacting with environmental moisture. The foam is useful for deposit in railroad spike holes or any structural member having a cavity and where moisture within or on the cavity would otherwise react with the isocyanate to produce an uncontrollable foaming mass.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: December 19, 1995
    Assignee: BASF Corporation
    Inventors: Agus Sampara, Rob Hutchings, Tom Harris, Karl Dondoroff, Kerry Bowman
  • Patent number: 5470614
    Abstract: This invention is a method for the protection of wood and other lignocellulosic materials from attack by micro-organisms with the use of iodates. The method consists of treating wood or other lignocellulosic material by soaking it in a solution of iodate for a period of time ranging from three hours to seven days at temperatures between 20.degree. C. and 50.degree. C. The treated material is then removed from the solution and dried. Wood treated with this method shows resistance to attack by wood-degrading micro-organisms. Furthermore, the iodates are resistant to leaching from the wood and other lignocellulosic materials after such treatment.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: November 28, 1995
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: George C. Chen, Roger M. Rowell
  • Patent number: 5468284
    Abstract: A method of treating wood to provide anti-stain and anti-decay waterproofing properties includes applying to the wood a water solution having about 1.3 to 2.75 weight percent of a quaternary ammonium compound, about 1 to 2 weight percent of a hydrated starch solution, about 2.5 to 5.0 weight percent of a slack wax water emulsion and about 90 to 95 weight percent water. The solution may be created by establishing a first mixture of hydrated starch solution, slack wax emulsion and water and subsequently admixing the quaternary ammonium compound with a first mixture. Preferred solid concentrations of the emulsions are provided. A wood waterproofing composition contains about 1.3 to 2.75 weight percent of a quaternary ammonium compound, about 1 to 2 weight percent of a hydrated starch solution, about 2.5 to 5.0 weight percent of a slack wax emulsion and about 93 to 97.5 weight percent water.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: November 21, 1995
    Assignee: Kop-Coat, Inc.
    Inventor: Jeffrey C. Sturm
  • Patent number: 5459222
    Abstract: Polyurethanes and polyesters are described which are the reaction products of an aromatic, aliphatic or cycloaliphatic diisocyanate, or of a diacid or diacid derivative respectively, with a diol containing a pendent UV-absorbing moiety, optionally also with one or more other diols or diamines. These UV-absorbing polycondensates can be applied to the surfaces of substrates by exhaustion methods or by spraying and act to protect polymers and dyes from degradation by UV radiation. They are therefore useful, either alone or in combination with other coating materials, for the treatment of wood, paper, textiles, leather or other surfaces which are exposed to degrading radiation.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: October 17, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Juliana Rodgers, Istvan Borsody, Athanasios Karydas, Robert A. Falk, Karl F. Mueller, Michele Kovaleski
  • Patent number: 5454545
    Abstract: A mould-form shuttering panel against which concrete is intended to be cast. The shuttering panel is wood based, such as plywood, wherein the side of the shuttering panel intended to lie in contact with the concrete includes an elastic layer which will not adhere to the concrete to any significant extent. The elastic layer is 1-5 mm in thickness and is applied to the plywood by a method including spraying the layer onto the plywood and then rolling a roller over the liquid coating.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: October 3, 1995
    Inventor: Leif B. Taraldsson
  • Patent number: 5418014
    Abstract: A stable aqueous dispersion and process for making the dispersion are provided containing hydrolyzed cellulose ester, organic solvent, water and acrylic resin having free acid functionalities that are at least partially neutralized. The dispersion is useful in coatings and can also contain surfactant and cross-linking agent.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: May 23, 1995
    Assignee: Eastman Chemical Company
    Inventors: Chung M. Kuo, Larry G. Curtis, Paul L. Lucas
  • Patent number: 5418067
    Abstract: Compositions are provided for forming a coating on metal, plastic or wood substrate wherein the coating has the appearance and texture of wood, conceals joints on the surface of the substrate and is capable of accepting conventional wood stain.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: May 23, 1995
    Assignee: Marley Mouldings Inc.
    Inventor: Carroll W. Cope
  • Patent number: 5407995
    Abstract: The present invention relates to acid-curing aqueous coating compositions, in particular for the coating of veneer films and continuous edges, containing an amino resin and a hydroxyl-containing polyester.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: April 18, 1995
    Assignee: BASF Lacke + Farben Aktiengesellschaft
    Inventors: Horst Hintze-Bruning, Joachim Roll
  • Patent number: 5395656
    Abstract: A wood preservative composition which contains poly ethylene oxide along with poly vinyl pyrrolidone is applied to wood in a four-step process. In the first step, moisture and excess resin are removed from the wood. In the second step, the preservative composition is applied to the wood by pressure injection. In the third step, the container for the wood is drained and excess solution is transferred to a holding tank. In the fourth step, a catalyst, either heat or a low-pH composition, is applied to the wood to cause chemical bonding of the preservatives within and with the wood. As a part of the fourth step, excess moisture is removed from the wood by subjecting the wood to a vacuum to draw out excess moisture and then subjecting the wood to a flow of desiccated air which absorbs the moisture.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: March 7, 1995
    Inventor: Jin Liang
  • Patent number: 5371128
    Abstract: The instant invention pertains to a hot-melt pressure sensitive adhesive composition wherein the composition is comprised of a mixture of (i) a silicone resin and (ii) a silicone fluid, the mixture exhibiting tackiness and adhesiveness, the mixture being blended with (B) from about 1.0 to 20 weight percent, based on the total weight of the mixture of (i) and (ii), of a siloxylated allyloxypropane diol copolymer. The instant invention also encompasses method of using the composition, methods of making hot-melt silicone pressure sensitive adhesive-coated substrates, and devices made using the composition.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: December 6, 1994
    Assignee: Dow Corning Corporation
    Inventors: Katherine L. Ulman, William J. Schulz, Jr., John R. Keryk
  • Patent number: 5362847
    Abstract: A graft copolymer is produced by grafting both at least one perfluoroacrylate and at least one N-(oxymethyl)acrylamide, e.g., IBMA, onto a poly(oxyalkylene) composition. This graft copolymer is water dispersible prior to crosslinking while after crosslinking, it becomes a highly durable hydrophobic and oil repellent coating for fibers, textiles, and the like.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: November 8, 1994
    Assignee: Karlshamns AB
    Inventors: Robert Miller, James L. Williams, George H. Greene
  • Patent number: 5362520
    Abstract: A new and improved bleaching and finishing composition for bleaching and finishing a solid substrate includes a first component blend which includes a quantity of a latex resin and a quantity of a bleaching solution. A second component blend includes a quantity of a latex resin, a quantity of an alcohol, a quantity of water, a quantity of a substrate treating material, and a quantity of an alkalizing agent. The first component blend and the second component blend are maintained separated from each other in storage, and the first component blend and the second component blend may be mixed together prior to use on the substrate. Preferably, the substrate is wood. The second component blend may also include a quantity of a coloring agent for tinting the substrate to a desired shade of color. Also, a method is provided for bleaching and finishing a solid substrate.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: November 8, 1994
    Inventor: Ricardo M. Rodriguez
  • Patent number: 5360631
    Abstract: There is disclosed a method for the ammonia saturation of wood to impart flexibility thereto which includes the step of sealing the surfaces of ammonia-saturated wood with a polymeric film which has limited or no permeability to either or both ammonia and water vapor. Preferably, the polymeric film is flexible so the working of the wood product by bending, twisting, embossing, molding, etc. will not destroy the film. The polymeric film should also be soluble in a selected solvent, thereby permitting its removal after the wood has been formed in a final, desired shape to permit water vapor to re-establish crosslinking of the cellulose chains and restore its natural, rigid condition.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: November 1, 1994
    Inventor: Robert E. Strauss
  • Patent number: 5344675
    Abstract: This invention relates to a blend of at least two emulsion polymers. In particular, the emulsion polymer blend comprises from 95 to 40 percent by weight of at least one first latex and from 5 to 60 percent by weight of at least one second latex, wherein the first latex is multi-stage comprising from 95 to 50 percent by weight of at least one soft stage polymer having a Tg less than 50.degree. C. and from 5 to 50 percent by weight of at least one hard stage polymer having a Tg from about 20.degree. C. to about 160.degree. C., and wherein the second latex is not an ambient temperature film-forming polymer. The emulsion polymer blend of this invention can be used to formulate a variety of aqueous coating compositions, such as for example, paints, mastics, caulks, sealants, varnishes, floor polishes, and the like. The emulsion polymer blend of this invention is also useful for formulating an aqueous coating composition which is coalescent-free.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: September 6, 1994
    Assignee: Rohm and Haas Company
    Inventor: Barry S. Snyder
  • Patent number: 5338570
    Abstract: A process for finishing wood slatted articles of furniture, such as chairs, tables and ottomans for either indoor or outdoor use comprising the steps of dipping the article in a coating material, draining the excess coating material and then spinning the article to provide an even distribution of the coating, particularly throughout the intricately woven slats of the article. The article is subsequently dried at room temperature and then heated in an oven to cure the coating material. The coating material may be comprised of an acrylic polymer resin. The article may be dipped in various other media, such as a color stain or an exterior protective sealer depending on the finishing application desired.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: August 16, 1994
    Assignee: Westinghouse Electric Corp.
    Inventor: Thomas E. Cressman
  • Patent number: 5320872
    Abstract: Discoloration of surfaces, such as painted or treated wood surfaces, by tannin-staining caused by the complexing of certain transition metal ions with tannate ions (the process is often referred to in the art as "tannin-stain bleed") is reduced or prevented by contacting a transition metal ion on a painted surface or surface to be painted with a complexing agent for the transition metal ion, such as by the addition of the complexing agent for the transition-metal ion to paint formulations or by pretreatment of the wood surface with the complexing agent before painting. It is believed that the complexing agents form coordination complexes with transition-metal ions on the surface of and within the paint film, thus preventing the formation of highly-colored complexes of the transition metal ions with the tannate ions derived from the tannins in the wood.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: June 14, 1994
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Thomas E. McNeel, James A. Harrell
  • Patent number: 5318802
    Abstract: 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 pressure of the formaldehyde polymer within the reaction vessel is 4.00.times.10.sup.4 Pa or more. In addition, a concentration of the formaldehyde polymer is in a range of 30 to 350 mol/m.sup.3 of formaldehyde monomer, and a molar ratio of the formaldehyde polymer to sulfur dioxide is in a range of 10 to 350. As the formaldehyde polymer, for example, trioxane, tetraoxane, or paraformaldehyde is used. The modified wood material manufactured by the method including the above conditions shows excellent dimensional stability while a discoloration thereof is effectively prevented. Therefore, the modified wood material is particularly fit to use for an interior furniture, musical instrument and a bath tub, etc.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: June 7, 1994
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Hiroyuki Ishikawa, Arihiro Adachi, Hiroaki Usui
  • Patent number: 5308657
    Abstract: The invention is directed to a process for protecting the edges of a panel by applying a non-sagging polyurethane composition to the edges of said panel, and allowing the composition to cure.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: May 3, 1994
    Assignee: Miles Inc.
    Inventors: Peter H. Markusch, Hans-Joachim Kogelnik, Jeffrey F. Dormish, Norbert Adam
  • Patent number: 5304400
    Abstract: The present invention relates to a process for preparing a coated, heat resistant substrate byI) coating the substrate with a coating composition containinga) a solution or dispersion containinga1) 100 parts by weight of at least one hydroxyl-functional polyacrylate resin in dissolved or dispersed form, wherein the resin has a hydroxyl value of 15 to 200 mg KOH/G solid resin, an acid value of 5 to 250 mg KOH/G solid resin and a total content of chemically incorporated carboxylate and/or sulfonate groups of 8 to 450 milliequivalents per 100 g of solids,a2) 25 to 395 parts by weight of water anda3) 5 to 125 parts by weight of at least one organic solvent having a boiling point or boiling range at 1013 mbar of 100 to 300.degree. C. andb) at least one organic polyisocyanate in a quantity corresponding to an equivalent ratio of isocyanate groups of component b) to isocyanate-reactive groups of component a1) of 0.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: April 19, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Dhein, Knud Reuter, Burkhard Kohler, Rainer Rettig, Lothar Backer
  • Patent number: 5300331
    Abstract: A method and apparatus for the ultraviolet curing of pigmented coatings having a thickness from about 1 mm to about 10 mm at a high curing rate and a relatively low energy consumption per unit area of coating cured. A coated substrate is irradiated by a first high UV source having a spectral energy distribution of the discharge which is high in the range from about 350 nm to about 450 nm and by a second UV source having a spectral energy distribution of the discharge which is high in discrete regions through the range of about 200 nm to about 450 nm. Each UV source is powered by at least about 300 watts per inch of width of the coating.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: April 5, 1994
    Assignee: Fusion Systems Corporation
    Inventor: William R. Schaeffer
  • Patent number: 5298060
    Abstract: A method for preventing or reducing the marine life buildup on a submerged surface by applying to the surface an antifouling coating composition comprising a combination of a silicone fluid and a silicone resin.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: March 29, 1994
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mark E. Harakal, Dieter R. Nollen
  • Patent number: 5290598
    Abstract: Disclosed herein is a process for a coating composition for application at extremely high pressures under conditions which significantly reduce the amount of volatile organic materials which are given off during the spray process. Preferably, the coating composition is based upon a plasticizer wet nitrocellulose lacquer. The composition is utilized in a spray process involving the filling of a spray pump receptacle with the coating wherein the spray pump is operated at pressures above about 2,750 psi and wherein the pump is provided with a temperature control means for assuring that the temperature of the pumped coating is in the range of about 65.degree. F. to 150.degree. F. so that the viscosity of the pumped coating is maintained in the range of about 250 to about 1,000 cps. The resulting coatings may be applied as a top coat, sealer, lacquer, etc. to any desired substrate, although wood is preferred, with the resulting finished coating being equal or superior to existing coating compositions.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: March 1, 1994
    Assignee: Azko Coatings, Inc.
    Inventors: W. Dan Myers, Steven M. Summey
  • Patent number: 5273786
    Abstract: This invention relates to an all gas-loadable liquid injector. The gas-loadable liquid injector comprises an accumulator for containing a liquid and a propellant gas, a liquid delivery tube for insertion into a material to be treated by the liquid, and intermediate means between the liquid delivery tube and the accumulator. The intermediate means restricts the flow of liquid when the pressure in the accumulator substantially exceeds that in the delivery tube and allows a restricted flow of liquid when the pressure in the accumulator is substantially equal to or less than that in the delivery tube. The intermediate means has a flexible and collapsible tube extending into the accumulator from the bowels of the accumulator and a straight rigid tube having a free end. The free end of the rigid tube always lies at the lowest level in the accumulator regardless of the altitude of the injector so as to dip into any liquid in the accumulator.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: December 28, 1993
    Assignee: Unicorn Fluid Injectors, Ltd.
    Inventor: Michael E. Brown
  • Patent number: 5270083
    Abstract: The invention relates to wood preservation systems which employ impregnating agents comprising halogenated tannin extracts from plant species which are relatively more resistant to fungi, weathering, rotting, insect attack, etc. Materials contained within the tannin extracts are converted to halogenated substances which are absorbed by the wood species to be treated. The halogenated extract materials can be used with or without other treatment agents (e.g., fixatives or metal salts). Bromine is the preferred halogen material, with optimum treatment occurring when the bromine concentration in the extract exceeds about 2% (most preferably, about 4-5%).
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: December 14, 1993
    Assignee: Cecco Trading, Inc.
    Inventor: W. Robert Lotz
  • Patent number: 5268204
    Abstract: A method for uniformly coating the uppermost surface of a fibrous cellulosic decor sheet with an aqueous or melamine-based slurry containing a colorant using a slot coater; a decor sheet prepared by such method; and a laminate employing such decor sheet are described.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: December 7, 1993
    Assignee: The Mead Corporation
    Inventors: Larry O. Hill, Mahendra Mehta
  • Patent number: 5259701
    Abstract: Certain furan compounds are disclosed as being useful as marine or fresh water antifoulant compounds to be used in protective carrier compositions such as film forming polymer to protect fish nets, boats, pilings, and piers.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: November 9, 1993
    Assignee: Rohm and Haas Company
    Inventors: Donald L. Gerhart, Daniel Rittschof, Irving R. Hooper, Anthony Clare
  • Patent number: 5248221
    Abstract: Certain gamma lactones are disclosed as being useful as marine or fresh water antifoulant compounds to be used in protective carrier compositions such as film forming polymer to protect fish nets, boats, pilings, and piers.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: September 28, 1993
    Assignee: Rohm and Haas Company
    Inventors: Donald J. Gerhart, Daniel Rittschof, Irving R. Hooper
  • Patent number: 5246739
    Abstract: A method for treatment of wood, whereby the wood is impregnated with a wood preservative composition consisting essentially of an aqueous solution of ammonium salt of lignin and ammonia complexes of certain metal cations such as Cu(NH.sub.3).sub.4.sup.++, Zn(NH.sub.3).sub.4.sup.++, and Hg(NH.sub.3).sub.2.sup.++. the lignin is selected from the group consisting of alkali lignin, organosolv lignin, partially desulfonated sulfite lignin, and modified alkali or organosolv lignin.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: September 21, 1993
    Assignee: LignoTech USA, Inc.
    Inventor: Stephen Y. Lin
  • Patent number: 5242490
    Abstract: Veneer surface reactive polyisocyanates can be used in combination with polyhydroxy functional polymers, preferably nitrocellulose, and isocyanate reaction catalyzing organo tin compounds in low solids film-forming formulations as a substitute for standard wash coat and/or sealer coat compositions in furniture finishing schedules to provide veneer finishes with markedly enhanced resistance to checking.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: September 7, 1993
    Assignee: Lilly Industries, Inc.
    Inventor: James W. Maner
  • Patent number: 5240744
    Abstract: In the process described, cyclic polyimino ethers with .DELTA..sup.2 -oxazoline or .DELTA..sup.2 -5,6-dihydro-4H-1,3-oxazine structure are applied, alone or together with cyclic monoimino ethers of the same type, or with lactones, plus cationic polymerization catalysts, to solid surfaces and polymerized by heating. The process gives smooth, glossy coatings with high adhesive strength, hardness, and elasticity.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: August 31, 1993
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Brigitte Hase, Ulrich Eicken, Wolfgang Gress, Norbert Stork
  • Patent number: 5219616
    Abstract: This invention relates to a process of coating a finish film and one endless edge which comprising applying to said film and edge a heat curable coating composition containing an organic solvent, a lacquer additive and (a) from about 40 to about 85 parts by weight of an acetal and hydroxy functional resin; (b) from about 3 to about 20 parts by weight of an aminoplast resin; and (c) from about 0 to about 40 parts by weight of a polyester resin; and curing the wet film at a temperature between about 120 degrees C., to about 200 degrees C.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: June 15, 1993
    Assignee: Herberts Gesellschaft mit beschranker Haftung
    Inventors: Peter Klostermann, Hans-Dieter Rad, Helmuth Schmaldt
  • Patent number: 5209924
    Abstract: A novel topical medicinal composition is described which comprises a copolymer which has both pendant fluorochemical groups and pendant polysiloxane grafts.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: May 11, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James E. Garbe, Steven S. Kantner, Kanta Kumar, Smarajit Mitra
  • Patent number: 5204186
    Abstract: A method for reducing the combustibility of a compatible combustible material comprising treating the material with a fire retardant composition comprising a silane and/or siloxane. The silane and/or siloxane comprises a silicon moiety, a group having fire retardant properties and a group capable of permitting chemical attachment of the composition to the material. A catalyst may be added to the composition to increase the rate of the chemical attachment of the composition to the material. The material is treated with this composition producing a fire retardant article. The composition also imparts water resistance to the treated material.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: April 20, 1993
    Assignee: Advanced Chemical Technologies Co.
    Inventors: Dean E. Brunken, Arnulf P. Hagen
  • Patent number: 5182134
    Abstract: A method of forming a cured thermoset composition by applying radio signals having a frequency of about 1 to 100 MHz to a composition comprising a major portion of thermoset and a receptor, said receptor having a dissipation factor of about 0.1 or greater and a dielectric constant of at least 0.1 or greater, said receptor selected from the group consisting of alkali or alkaline earth metal sulfate salts, aluminum trihydrate, quaternary ammonium salts, phosphonate compounds, phosphate compounds, polystyrene sulfonate sodium salts or mixtures thereof, said method comprising the steps of:(a) applying said composition to a substrate;(b) applying radio signals to the composition deposited on the substrate; and(c) dissipating the radio signals received by the receptor as thermal energy in an amount effective to cure the composition to a thermoset bond.
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: January 26, 1993
    Assignee: H. B. Fuller Licensing & Financing Inc.
    Inventor: Norman J. Sato
  • Patent number: 5178951
    Abstract: A thermosetting resin composition comprising(A) 60 to 95% by weight of a prepolymer or precopolymer selected from the group consisting of (A-1), (A-2) and (A-3) below,(A-1) a prepolymer of diallyl phthalate,(A-2) a precopolymer of diallyl terephthalate derived from diallyl terephthalate of the following formula (1) ##STR1## and an aromatic benzyl hydrocarbon having at least one hydrogen atom at the benzyl position and represented by the following formula (2) ##STR2## wherein each of R.sup.1 and R.sup.2 represents a member selected from the class consisting of a hydrogen atom and lower alkyl groups, and n is an integer of 1 to 3, and(A-3) a mixture of (A-1) and (A-2), and(B) 40 to 5% by weight of a polyacrylate or polymethacrylate of dipentaerythritol having at least 4 acryloyl or methacryloyl groups in the molecule and represented by the following formula ##STR3## wherein each R.sup.3 represents a hydrogen atom, --COCH.dbd.CH.sub.2 or ##STR4## and at least four R.sup.3 groups represent --COCH.dbd.CH.sub.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: January 12, 1993
    Assignee: Osaka Soda Co., Ltd.
    Inventors: Yoshimi Kono, Sabee Maeda
  • Patent number: 5141784
    Abstract: Environmentally preferred water-based coatings can be substituted for solvent-based coatings in commercial wood finishing processes without sacrifice of coating quality. Art-recognized discoloration of water-based coatings due to uneven leaching of chromophoric substances, such as natural tannins, is eliminated by contacting the surface with a water soluble anti-leachate compound selected from the group consisting of carboxylic acid salts, mono/polyfunctional amines and amine derivatives and their acid addition salts. The process allows for marked reduction of VOC emissions from commerical wood finishing operations.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: August 25, 1992
    Assignee: Lilly Industrial Coatings, Inc
    Inventors: Bobby E. Beane, Eugen Safta
  • Patent number: 5132138
    Abstract: The present invention discloses a novel process for sealing, restoring and protecting wood surfaces. The process involves application of a reactive silicone compound in solvent to the surface being treated, the evaporation of solvent which starts a polymerization reaction of a silanic hydrogen containing silicone polymer on and within the surface of the wood. The silanic hydrogen containing silicone, which is delivered to the surface of the wood in a solvent, penetrates the wood surface. The evaporation of the solvent initiates the polymerization. The polymer matrix is built up around and within the wood fiber which the solvent solution has penetrated. The polymer fills the surface of the wood making a clear interlocked elastomeric surface which restores the appearance and provides the desired durability.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: July 21, 1992
    Assignee: George Trifon
    Inventors: George Trifon, Anthony O'Lenick, Jr.
  • Patent number: 5128407
    Abstract: Disclosed herein is a stable fluid mixture and a binding composition containing the same; said mixture comprises a polyisocyanate and a solution of urea in water which is characterized in that the urea is premixed with water before it is admixed with the polyisocyanate to make a urea extended polyisocyanate.
    Type: Grant
    Filed: July 25, 1991
    Date of Patent: July 7, 1992
    Assignee: Miles Inc.
    Inventors: Heber D. Layton, Howard S. Duff, Kevin R. Molyneaux
  • Patent number: 5120581
    Abstract: A method for reducing the combustibility of a compatible combustible material comprising treating the material with a fire retardant composition comprising a silane and/or siloxane. The silane and/or siloxane comprises a silicon moiety, a group having fire retardant properties and a group capable of permitting chemical attachement of the composition to the material. A catalyst may be added to the composition to increase the rate of the chemical attachment of the composition to the material. The material is treated with this composition producing a fire retardant article. The composition also imparts water resistance to the treated material.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: June 9, 1992
    Assignee: Advanced Chemical Technologies, Co.
    Inventors: Dean E. Brunken, Arnulf P. Hagen
  • Patent number: 5094890
    Abstract: Compositions for flame proofing wood e.g. in the form of aqueous solutions containing tetrakis (hydroxymethyl) phosphonium salt, methylolmelamine with at least 3.5 optionally alkylated hydroxymethyl groups per melamine nucleus, a polyfunctional nitrogen compound with at least 2 N-H groups e.g. urea and a base e.g. triethanolamine.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: March 10, 1992
    Assignee: Albright & Wilson Limited
    Inventors: Kevin M. Smith, David H. Condlyffe
  • Patent number: 5089342
    Abstract: An improved aqueous coating agent for providing a decorative and protective coating for wood or wood products contains as a binder polyacrylate resins having chemically incorporated therein air-drying, unsaturated fatty acid moieties and quaternary ammonium moieties, and said agent is prepared by reactingA) excess polyacrylates containing epoxide groups and having an epoxide group equivalent weight of 200 to 1,300 withB) drying fatty acids, in an addition reaction with ester formation,C) reacting at least some of the remaining epoxide groups in the A)-B) reaction product with monoamine ammonium salts which contain an N-H bond in an addition reaction, anddissolving the reaction product obtained from step C) and containing quaternary ammonium groups in water.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: February 18, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Dhein, Thomas Scholl, Wolfgang Wellner, Lothar Backer
  • Patent number: 5071682
    Abstract: The present invention is directed to a method of using non-resinous melamine to safen urea formaldehyde-wood composites and the product produced thereby. The method involves incorporation of non-resinous melamine into a urea formaldehyde-wood composite in a manner which leaves most of the melamine free to serve as a flame retardant and formaldehyde scavenger. The non-resinous melamine is incorporated into the urea formaldehyde-wood composite prior to curing the urea formaldehyde resin.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: December 10, 1991
    Assignee: Melamine Chemicals, Inc.
    Inventor: William P. Moore