Sodium Silicate Patents (Class 428/453)
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Patent number: 9227338Abstract: Wood preservatives, methods for protecting wood and wood-based products and/or structures utilizing the preservatives, and treated wood and wood-based articles and/or structures incorporating the preservatives are described. Methods are also provided for remediating structures already infected with mold. The subject wood preservative formulation includes a borate compound and a fatty acid. The addition of an emulsifier to the formulation further facilitates application of the treatment. The combination of a borate compound and fatty acid combination typically provide a synergistic effect compared to the additive result provided by the combination's individual components.Type: GrantFiled: October 29, 2014Date of Patent: January 5, 2016Inventor: Robert Coleman
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Patent number: 8784978Abstract: The invention relates to polymer nanocomposites including either silica or non-platelet metal oxide particle and the use of these polymer noncomposites in the core layer of multilayer barrier films and laminates. The polymer nanocomposites provide high-barrier properties and low gas permeation.Type: GrantFiled: November 22, 2006Date of Patent: July 22, 2014Assignee: Triton Systems, Inc.Inventors: Shah Apoorva, Giaya Arjan, Kim Yoojeong
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Patent number: 7745011Abstract: A low-cost and effective coating composition for cardboard allows use of thinner paper board with the same or higher strength relative to conventional water-resistant cardboard. The resulting cardboard can also be repulped and more easily recycled. The inventive coating composition, preferably applied to the fluted inner ply of the cardboard (as a waterproof barrier), is compatible with the utilization of low-cost starch-based adhesives for gluing the fluting to the liners. At least one side of the fluting cardboard is coated with a composition comprising: from about 10% to 70% by weight, and more preferably from about 40% to 60% by weight, of sodium silicate; from about 10% to 60% by weight, and more preferably from about 30% to about 50% by weight, of a synthetic resin emulsion; from about 10% to 50% of a paraffin-water emulsion; and from about 5% to about 25% by weight of added water.Type: GrantFiled: March 1, 2006Date of Patent: June 29, 2010Assignee: Ingenieros Consultores Asociados, S.A.Inventor: Carlos Cantu-Gonzalez
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Patent number: 7678458Abstract: A wafer chuck for use in a lithographic apparatus, which includes a low-thermal expansion glass ceramic substrate, a silicon silicon carbide layer, and a bonding layer comprising silicate having a strength of at least about 5 megapascals, the bonding layer attaching the silicon silicon carbide layer to the substrate is described. Also, a method of forming a wafer chuck for use in a lithographic apparatus, which includes coating a portion of one or both of a low-thermal expansion glass ceramic substrate and a silicon silicon carbide layer with a bonding solution, and contacting the substrate and the silicon silicon carbide layer to bond the substrate and the silicon silicon carbide layer together is described.Type: GrantFiled: January 24, 2007Date of Patent: March 16, 2010Assignee: ASML Holding N.V.Inventors: Matthew Lipson, Robert D. Harned, Geoffrey O'Connor, Timothy O'Neil
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Patent number: 6821631Abstract: 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 been treated using the present method include a borate-silicate polymer within the substrate. When the present substrates are wood, wood products, or green lumber, they may be used to build structures.Type: GrantFiled: October 28, 2002Date of Patent: November 23, 2004Assignee: Wood treatment Products, Inc.Inventors: Robert N. Grantham, Robert R. Weaver, III
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Patent number: 6811980Abstract: The present invention relates to a process for immobilization of nucleic acid molecules on a substrate, wherein the substrate is treated with atomic oxygen plasma prior to immobilizing the nucleic acid molecules thereon. The invention is further related to immobilized nucleic acid molecules and uses thereof.Type: GrantFiled: November 19, 2001Date of Patent: November 2, 2004Assignee: Sony International (Europe) GmbHInventors: William E. Ford, Jurina Wessels, Oliver Harnack
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Patent number: 6649235Abstract: A method for producing a coated polymeric article by co-extruding polypropylene and a maleic anhydride modified polypropylene, corona-treating, and applying a polysilicate barrier is described. Also provided are films and bottles produced using this method.Type: GrantFiled: August 17, 1998Date of Patent: November 18, 2003Assignee: Hoechst Trespaphan GmbHInventor: Ravi Prasad
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Patent number: 6176769Abstract: A ceramics dress substrate of the present invention capable of both performances of cutting a cut material with a high accuracy and dressing a diamond cutting grindstone with an excellent cutting property and an reduced wearing amount of the grindstone. This ceramics dress substrate comprises sintering a mixture of ceramics grinding particles and a silicate mineral, The ceramics grinding particles are preferably uniformed and have a scratch hardness ranging from 6 to 10. Alumina grinding particles, silicon carbide and mullite are preferably used as the ceramics grinding particles, and a kaolin mineral, pyrophyllite, montmorillonite, sericite, talc and chlorite are preferably used as the silicate mineral. The ceramics dress substrate is preferably coated with glass.Type: GrantFiled: December 22, 1998Date of Patent: January 23, 2001Assignees: Narumi China Corporation, Sumitomo Special Metals Co., Ltd.Inventors: Masato Suzuki, Shirohito Matsuyama, Katsushi Sugita, Kazutoyo Shimizu, Naoyuki Okamoto
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Patent number: 6165257Abstract: An amorphous mineralized coating upon an iron containing surface wherein the amorphous mineralized coating has a formula A.sub.x B.sub.y O.sub.z --nH.sub.2 O wherein A comprises iron and B comprises silicon and the values of x, y and z are greater than zero; wherein the amorphous mineralized coating comprises an amorphous phase and inorganic complex oxide crystals.Type: GrantFiled: May 2, 1997Date of Patent: December 26, 2000Assignee: Elisha Technologies Co. LLCInventors: Robert L. Heimann, William M. Dalton, Nancy M. McGowan, David M. Price
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Patent number: 6146766Abstract: A sodium silicate polymerization method was used to incorporate sodium silicate and/or other water soluble inorganic fire retardants into an insoluble matrix. By using a vacuum/pressure technique, a water soluble sodium silicate/borate mixture was forced into the interior of various cellulosic materials, then was heat polymerized into an insoluble fire retardant matrix. This produced a dual action fire retardant material also with the following properties: moisture resistant, weather proof, and improved strength. Water insoluble forms of sodium silicate and borates have not been possible until now. This process and testing was then repeated with six other water soluble fire retardant combinations, making them similarly water insoluble.Type: GrantFiled: March 20, 1998Date of Patent: November 14, 2000Inventors: Karen Marie Slimak, Robert Andrew Slimak
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Patent number: 6143420Abstract: The disclosure relates to the forming mineralized coatings on metal surfaces and to methods of forming such coatings. The coating can include a wide range of compounds and normally at least a portion of the coating corresponds to an amorphous phase. The coating and method are particularly useful in providing a corrosion resistant coating or film upon a metallic surface. This aspect of the disclosure involves the formation of a corrosion resistant "mineralized" layer of tailored composition upon a metal substrate.Type: GrantFiled: May 2, 1997Date of Patent: November 7, 2000Assignee: Elisha Technologies Co LLCInventors: Robert L. Heimann, William M. Dalton, David R. Webb, Nancy M. McGowan
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Patent number: 6132822Abstract: This invention relates to an economical coating composition for porous substrates that provides extremely glossy surfaces, is capable of supporting holographic images, provides good oxygen barrier properties as well as good oil, grease, solvent and water resistance. Said coatings on paper substrates are printable, biodegradable, recyclable, and repulpable. They are also suitable for use in conjunction with food products. This invention also relates to a process for applying said coatings onto porous substrates as well as a process for the economical production of inexpensive holographic images on substrates such as paper and cardboard containers.Type: GrantFiled: September 6, 1996Date of Patent: October 17, 2000Assignee: A*Ware Technologies, L.C.Inventors: Derric T. Overcash, Richard C. Wallace
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Patent number: 6040057Abstract: Materials variously treated with sodium silicate were studied until enough information was obtained to find a way to solve the problems that have prevented sodium silicate from being the used as a fire retardant. These problems are: 1) water solubility (miscible with water), which results in extensive leaching when exposed to water, 2) cracking, chipping and peeling of treated surfaces, and 3) surface granulation. During flame tests it was discovered that sodium silicate formed a foam-like material, and this material was found to have become water insoluble, yet its elemental composition had remained virtually identical to that of the unmodified sodium silicate. This investigator proposes that under the influence of heat and dehydration, sodium silicate undergoes a polymerization process resulting in particles sizes too large to dissolve in water, and then developed a mechanism to explain how the process could occur.Type: GrantFiled: April 11, 1997Date of Patent: March 21, 2000Assignee: Karen M. SlimakInventors: Robert A. Slimak, Christian C. Haudenschild, Karen M. Slimak
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Patent number: 6004387Abstract: A fire resistant liquid and a process for the preparation thereof characterized in reacting granulated potassium hydroxide, powdered sodium carbonate, lumps of metallic silicon and water.A fireproof building material molded by applying a viscous liquid of the fire resistant liquid mixed with bentonite and fibers on one side or both sides of wood-, paper-, metal- and composite boards, and a fireproof building material molded by laminating an incombustible cotton plate to a base plate through a compounding mixture of the fire resistant liquid with bentonite and Chinese cotton. A fire resistant adhesive prepared by mixing the fire resistant liquid with bentonite, Chinese cotton and BENGEL 31.Type: GrantFiled: June 8, 1998Date of Patent: December 21, 1999Assignee: Kyoei CorporationInventor: Kazuo Ishikawa
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Patent number: 5770316Abstract: Heat-stable, flexible polarizers with a polarizing layer of a polymer with conjugated double bonds with the exception of exclusively polyacetylene-containing polymer matrixes are obtained if their surfaces are sealed with silicate.Type: GrantFiled: November 26, 1996Date of Patent: June 23, 1998Assignee: Bayer AktiengesellschaftInventor: Karl-Heinz Aleksander Ostoja Starzewski
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Patent number: 5650227Abstract: Mouldings made from polyacetylene-containing polymer products comprising poly-acetylene and a polymer other than polyacetylene are distinguished by improved stability of their optical and electrical properties in air when they have a protective coating of a silicate.Type: GrantFiled: August 18, 1995Date of Patent: July 22, 1997Assignee: AGFA-Gevaert AktiengesellschaftInventor: Karl-Heinz Aleksander Ostoja Starzewski
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Patent number: 5591256Abstract: Sodium alumino-silicates are produced by silicate/clay reactions under hydrothermal conditions with increased solids during processing while still producing structural materials characterized by low oil absorption values, high total pore volume and increased differential pore volumes. The products are useful as coating pigments for paper and paperboard, paper fillers, paint pigments and as reinforcing pigments for rubber.Type: GrantFiled: August 10, 1994Date of Patent: January 7, 1997Assignee: J. M. Huber CorporationInventors: Gary M. Freeman, Richard D. Carter, Thad T. Broome, Kurt H. Moller
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Patent number: 5480587Abstract: A method of modifying an inorganic material which evolves gases and/or vapors at a temperature which is detrimental to the processing temperature of polymer or paper systems so that the modified material can be used as a fire retardant additive with that polymer or paper system. The method comprises the steps of: (1) providing a first material; (2) treating the first material to remove the portion which evolves gas which is detrimental to the processing of the polymer or paper system; and (3) combining a second material with the first material to create a modified material which does not evolve gas at a temperature which is detrimental to the processing of the paper or polymer system.Type: GrantFiled: December 21, 1988Date of Patent: January 2, 1996Assignee: Aluminum Company of AmericaInventors: Lawrence L. Musselman, Howard L. Greene
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Patent number: 5186746Abstract: Sodium Aluminosilicates (SAMS) are produced by silicate/clay reactions under hydrothermal conditions, the SAMS being characterized by low oil absorption values and high total pore volumes. The SAMS products are useful as coating pigments for paper, paper fillers and paint pigments.Type: GrantFiled: January 10, 1992Date of Patent: February 16, 1993Assignee: J. M. Huber CorporationInventor: Gary M. Freeman
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Patent number: 5167707Abstract: High performance synthetic sodium aluminosilicate compositions, and the method of making the same by the hydrothermal reaction of certain delaminated kaolin clays with select sodium silicate reagents, result in enhanced performance flatting agents for paint systems and anti-block agents for plastic film applications.Type: GrantFiled: March 29, 1991Date of Patent: December 1, 1992Assignee: J. M. Huber CorporationInventors: Gary M. Freeman, John M. M. Harrison, Marion M. Jones, Thad T. Broome
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Patent number: 5043225Abstract: A preservative-bearing pad and a method of using same to treat the interface between a railroad cross tie and tie plate. A sandwich of water-soluble active ingredient disposed between two layers of biodegradable hydrophilic backing is simply placed on the adzed portion of a cross tie prior to installation of the tie plate and rail during a rail laying or relaying operation.Type: GrantFiled: September 1, 1988Date of Patent: August 27, 1991Inventors: David J. Ostby, John M. Conover
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Patent number: 5035951Abstract: Disclosed in an intumescent coating composition comprising an aqueous mixture of a water soluble alkali metal silicate, a hydrated metal silicate clay, and an inorganic particulate material which, when exposed to flame temperatures, endothermically releases a nonflammable gas. The coating can be applied to metal, wooden and foamed polymeric materials and serves to provide a thermal barrier against the effects of overheating.Type: GrantFiled: August 2, 1989Date of Patent: July 30, 1991Assignee: Firestop Chemical CorporationInventor: Felix A. Dimanshteyn
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Patent number: 4988561Abstract: A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition ofxM.sub.2 O:Al.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owhere x is the number of moles of alkali metal oxide and is an integer from 0.01 to 2.0, M is the alkali metal, y is the number of moles of SiO.sub.2 in the unique SAMS compositions and is an integer greater than 2.0, and z is the number of moles of bound water and is an integer ranging from 1.0 to 5.0. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO.sub.2 extenders, as silica extenders or as reinforcing agents for paper, paint, rubber, plastics and specialty products.Type: GrantFiled: May 31, 1990Date of Patent: January 29, 1991Assignee: J. M. Huber CorporationInventor: Satish K. Wason
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Patent number: 4902445Abstract: Fiber boards of high strength which are highly water- and flame-resistant are disclosed, as well as a method for making such boards and an inorganic binder composition for bonding wood fibers. The boards comprise a lignin-containing fiber material, a binder derived from a binder composition comprising an alkali silicate solution, sulphur and/or an inorganic sulphur compound, and a calcium and/or magnesium compound and, optionally, fillers and/or hydrophobing agents.The fiber boards are manufactured by mixing the lignin-containing fiber material with the binder composition and optional further additives, whereupon the mix is compressed at a high pressure and at a temperature of 130.degree.-230.degree. C.Type: GrantFiled: April 25, 1988Date of Patent: February 20, 1990Assignee: Nova Scand Utveckling ABInventors: Georg Bjorhaag, Goran Embring, Karl-Gunnar Stahl
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Patent number: 4863796Abstract: A family of synthetic alkali metal aluminosilicates (SAMS) are produced by the hydrothermal reaction between kaolin clay and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition ofxM.sub.2 O:Al.sub.2 O.sub.3 :ySiO.sub.2.zH.sub.2 Owhere x is the number of moles of alkali metal oxide and is an integer from 0.01 to 2.0, M is an alkali metal, y is the number of moles of SiO.sub.2 in the unique SAMS compsoition, and z is the number of moles of bound water and is an integer ranging from 1.0 to 5.0. The composition essentially comprises altered kaolin clay platelets with an integral rim or protuberance of essentially amorphous alkali metal silicate-kaolin reaction product. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO.sub.2 extenders, as silica extenders or as reinforcing agents for paper, paint, rubber, plastics and specialty products.Type: GrantFiled: January 19, 1989Date of Patent: September 5, 1989Assignee: J. M. Huber CorporationInventor: Satish K. Wason
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Patent number: 4842772Abstract: Alumina trihydrate particles coated with alkali metal silicate, alkaline earth metal silicate or alumino silicate are useful as fillers in paper and plastics and provide good opacity and brightness properties as well as fire retardancy. The alumina trihydrate products are prepared by reaction of alumina trihydrate with an alkali metal silicate, an alkaline earth metal silicate, or alumino silicate, or the reaction of alkali metal silicate or alkaline earth metal silicate with aluminum sulfate to produce an alumino silicate precipitate coating in situ.Type: GrantFiled: June 1, 1987Date of Patent: June 27, 1989Assignee: J. M. Huber CorporationInventor: Withiam Michael C.
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Patent number: 4761342Abstract: A fibre board having improved strength, water-resistance and flame resistance comprises a lignin-containing fibre material and a binder. The binder is formed from a binder solution containing an alkali silicate solution, a sulphur component, and an metal component. The solution may also include hydro-foaming agents, fillers and other materials. The preferred binder solution includes 50-90 parts by weight alkai silicate solution, 0.5-10 parts by weight sulphur component and 10-40 parts by weight of the metal component. A method is also presented for the formation of an improved fibre board through utilization of a preferred mixture of a lignin-containing fibre material and a preferred binder solution under pressure, at a temperature of about 130.degree. to 230.degree. centigrade.Type: GrantFiled: January 21, 1986Date of Patent: August 2, 1988Assignee: Nova Scand Utveckling ABInventors: Georg Bjorhaag, Goran Embring, Karl-Gunnar Stahl
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Patent number: 4734336Abstract: A twin ply uncoated paper for ink jet processes comprised of a supporting paper substrate sheet as a first ply, and thereover as a second ply a paper sheet with filler additives attached to the fibers thereof, which additives are, for example, selected from the group consisting of amorphous synthetic silicas, inorganic silicates, metal alumino-silicates, and inorganic oxides. Three ply papers are also illustrated wherein there is situated between two second plies a supporting substrate sheet.Type: GrantFiled: October 2, 1986Date of Patent: March 29, 1988Assignee: Xerox CorporationInventors: John F. Oliver, Arthur Y. Jones
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Patent number: 4726985Abstract: A laminate of foil and kraft paper is adhered to the upper face of fiber glass insulation so that the exposed foil reflects radiant heat entering the attic through the roof of a building structure. Relatively thick kraft paper supports the very thin layer of foil without causing a fire hazard due to the use of an inorganic adhesive, such as sodium silicate, to bond the two together and also due to the use of a fire retardant water-based adhesive to bond the foil-kraft laminate to the fiber glass. The laminate is preferably perforated to prevent it from functioning as a vapor barrier.Type: GrantFiled: December 2, 1986Date of Patent: February 23, 1988Assignee: Manville CorporationInventors: Ralph M. Fay, Theodore R. Rohweder
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Patent number: 4708910Abstract: Fire-resistant wood composites, in particular wallboards, which in addition to a wood component contain a bonding agent consisting of a finely-ground hydraulic blast-furnace slag which is activated by an activator having an alkaline reaction, advantageously by waterglass and alkali hydroxide. The invention also relates to a process for manufacture of such wood composites and to an use of finley-ground hydraulic blast-furnace slag as a bonding agent in the manufacture of such wood composites.Type: GrantFiled: June 30, 1986Date of Patent: November 24, 1987Assignee: Forss Consult Ky, KbInventor: Bengt Forss
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Patent number: 4642268Abstract: A wood substrate having good flame resistance characteristics while substantially maintaining its adherence characteristics for asphalt products. One surface of the wood substrate has a coating of an inorganic soluble silicate impregnating the wood substrate and forming a firm bonding with it. A process which is disclosed comprises: (a) coating at least one surface of a wood substrate with a concentrated solution of an inorganic soluble silicate, and (b) drying said coating as to leave on said surface the inorganic silicate impregnating the wood substrate and form a firm bonding with the wood substrate.Type: GrantFiled: October 4, 1985Date of Patent: February 10, 1987Assignee: Domtar IncInventor: Andre St.-Michel
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Patent number: 4461494Abstract: This invention relates to sheet materials, on which a coating is applied and which are used for pressure sensitive carbonless copying systems, wherein at least one of the components responsible for color development in the coating is a predominantly white four layer structured lamelar ground chlorite mineral having an iron content of about 0.5% to 8% by weight preferably of about 3% by weight.The components responsible for color development in the coating are preferably composed by 40 to 60% by weight of said ground chlorite mineral and 60 to 40% by weight of activated montmorillonite or bentonite or smectite clay.Type: GrantFiled: June 2, 1981Date of Patent: July 24, 1984Assignee: Standard Oil Company (Indiana)Inventor: Roger A. Penne
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Patent number: 4395453Abstract: A fire and heat resistant partition having a plurality of lamina between a first side and an opposing second side is provided to protect an object adjacent the first side from a fire or heat generating source adjacent the second side, the first lamina being formed at least partially of aluminum. The first lamina is bonded to at least one ply that is formed from multiple laminae of fibrous material which are bonded to an intermediate lamina of predetermined thickness formed at least partially of aluminum.Type: GrantFiled: September 11, 1981Date of Patent: July 26, 1983Assignee: Olin CorporationInventors: Ellwood L. Lines, Jr., Douglas A. Farmer, Jr.
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Patent number: 4391875Abstract: The abrasion resistance and tensile strength of asbestos is significantly improved by the addition of significant amounts of metal oxides, such as iron oxide, under conditions to provide at least some surface bonding of the oxides to the surface of the asbestos. The oxides are preferably added during formation of bodies from asbestos dispersions and also impart color to the final product.Type: GrantFiled: December 11, 1980Date of Patent: July 5, 1983Assignee: RM Industrial Products Company, Inc.Inventors: Byeong H. Jo, Jerry Zucker
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Patent number: 4338374Abstract: A fireproofing material for application to flammable surfaces is based on an alkali metal silicate solution containing a non-ionic surfactant in combination with an alkali metal tri-silicate powder. The composition according to the invention is easily applicable to plane surfaces with ordinary tools, for example, spatulas, yet will not run either when applied or when subjected to flame.Type: GrantFiled: December 18, 1980Date of Patent: July 6, 1982Assignee: Woellner-WerkeInventor: Rudolf P. Neser
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Patent number: 4263048Abstract: A self-hardening composition consists essentially of 3-5% by weight of an alkaline earth metal chloride, 0.5-1.5% by weight of calcium metasilicate, 0.5-1.5% by weight of sodium fluorosilicate, 30-40% by weight of sodium silicate, 0.02-0.04% by weight of aluminum silicate clay and water. Composites made therefrom can include expanded aggregate material and/or reinforcing fibers, as extenders, or to impart control over the open curing time to preset requirements.Type: GrantFiled: January 25, 1980Date of Patent: April 21, 1981Assignee: High Efficiency Insulation Technologies, Inc.Inventor: Dennis J. Hacker
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Patent number: 4255477Abstract: An artificial lumber board comprises a plurality of elongated wood strips having medial body portions of different thicknesses and tapered tip end portions being thinner and more flexible than the medial portions wherein the wood strips are aligned longitudinally in the board and compressed. The compressed wood strips lap and bend over one another to form generally continuous sinuous wood grain-like structures extending along the board with the tapered tip portions providing generally point contact fitting of the wood strips with one another reducing the presence of void spaces in the board.Type: GrantFiled: October 24, 1978Date of Patent: March 10, 1981Inventor: John A. Holman
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Patent number: 4212920Abstract: Fireproofing composition comprising sodium silicate, gum arabic (or other gum) and a water dispersible polymer.Type: GrantFiled: July 10, 1978Date of Patent: July 15, 1980Inventor: Winthrop W. Seamans
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Patent number: 4152198Abstract: Paper and paperboard made of felted cellulose fibers are chemically modified by applying to them an isopropenyl ester containing a catalytic amount of an acid catalyst and then heat curing the treated product. The process imparts water repellancy to the paper products with a very low degree of add-on, but with a very high degree of retention of tensile strength. The products also have excellent printability, are resistant to boiling water, and retain their opacity after exposure to water.Type: GrantFiled: February 15, 1978Date of Patent: May 1, 1979Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Samuel Serota, Leonard S. Silbert, Gerhard Maeker
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Patent number: 4133933Abstract: An electrosensitive recording sheet consists of an electroconductive material of cuprous iodide, an electrosensitive color forming material, a binder and a support. A color forms in the recording sheet in response to an electric signal when an electric current flows therein. The cuprous iodide is whitened by adding an alkaline substance thereto, so as to only slightly increase the resistance of the cuprous iodide and to increase the contrast of recorded mark and the ordinary appearance of the recording sheet.Type: GrantFiled: June 22, 1976Date of Patent: January 9, 1979Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoichi Sekine, Wataru Shimotsuma, Shigeru Tsubusaki
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Patent number: 4122236Abstract: An elongated board of artificial lumber having a length greater than the width and thickness comprising a mixture of irregularly shaped elongated splinters of wood substantially aligned along the length of the board; a substantial portion of the mixture including splinters from about 2" to 10" long; a sealant coating the surface of the splinters; an adhesive carried on the splinters with the sealant restricting the penetration of the adhesive into the splinters so as to produce hardened layers between the splinters for holding the splinters in an interlocking configuration.Type: GrantFiled: May 9, 1977Date of Patent: October 24, 1978Inventor: John A. Holman