Aluminum Dnrm Patents (Class 524/441)
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Patent number: 5530051Abstract: The present invention relates to a synthetic resin composition for obtaining a molded article which has a metallic appearance like the brilliance of Milky Way, and is used in OA instruments, AV instruments cameras, telephones, electric shavers, wheel caps for automobiles, vessels for cosmetics, and the like. The synthetic resin composition comprises 100 parts by weight of a thermoplastic resin, and as a metallic pigment, from 0.2 to 5 parts by weight of lustrous metal particles having an average particle diameter (maximum length) of from 50 to 800 .mu.m, and a ratio .sigma./x of a standard deviation of a particle diameter (.sigma.) to an average particle diameter (x) of 0.1 or less, or from 0.2 to 10 parts by weight of lustrous metal fine pieces having an average particle diameter of from 50 to 800 .mu.m, and an average shape ratio (thickness/average particle diameter) of from 1/100 to 1/8.Type: GrantFiled: December 7, 1994Date of Patent: June 25, 1996Assignee: Kanegafuchi Kagaku Kabushiki KaishaInventors: Atsushi Hirata, Kazushi Hirobe
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Patent number: 5492958Abstract: Disclosed is a method of forming metal containing ceramic coatings on substrates. The method comprises applying a coating of hydrogen silsesquioxane resin and a metallic filler onto a substrate and heating the coated substrate at a temperature sufficient to convert the hydrogen silsesquioxane resin to a silica containing ceramic matrix containing the metallic filler.Type: GrantFiled: March 13, 1995Date of Patent: February 20, 1996Assignee: Dow Corning CorporationInventors: Loren A. Haluska, Keith W. Michael
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Patent number: 5492946Abstract: A molded article having improved weld line strength, fabricated from a polymer blend composition comprising at least one liquid crystalline polymer and at least one additional polymer, wherein the composition has a crystallization rate lower than said at least one liquid crystalline polymer.Type: GrantFiled: July 28, 1994Date of Patent: February 20, 1996Assignee: Amoco CorporationInventors: Paul J. Huspeni, John F. Petry, Roger W. Nelson, Steven R. Dunkle
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Patent number: 5470643Abstract: A polymer thick film resistor composition is disclosed which comprises: (1) finely divided particles of a conductive metal having a surface area of 0.3 to 3.0 m.sup.2 /g; (2) finely divided particulate material having a surface area greater than 100 m.sup.2 /g; (3) a thermoplastic resin; dissolved in (4) an organic solvent having a volatility rating of 10,000 to 50,000; wherein the composition is substantially curable within 2.5 minutes by heating to a temperature of 135.degree. C., and further wherein the volume ratio of particulate material to resin is at least 3.5, and the weight ratio of solvent to resin is 3 to 5.Type: GrantFiled: June 15, 1994Date of Patent: November 28, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventor: Jay R. Dorfman
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Patent number: 5468798Abstract: A basecoat for a nonstick coating system wherein the basecoat comprises a high temperature binder resin, preferably polyamideimide resin, and a filamentary powder, preferably a nickel powder, which is combined with the high temperature binder to yield a spongelike coating which with appropriate application has a rough surface and an internal structure containing interlocking channels. These channels may be impregnated by subsequently applied coatings, especially nonstick fluoropolymer coatings.Type: GrantFiled: February 18, 1994Date of Patent: November 21, 1995Assignee: Whitford CorporationInventor: Lawrence D. Leech
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Patent number: 5459189Abstract: A resin composition having improved resistance to discoloration caused by exposure to light, which comprises (a) 5-95% by weight of a polyphenylene ether alone or in combination with a styrene polymer, (b) 95-5% by weight of a polyamide, and based on 100 parts by weight of the sum of (a) and (b), (c) 0.01-30 parts by weight of one or more agents to improve the compatibility of a polyphenylene ether and a polyamide, (d) 0-50 parts by weight of one or more agents to improve the impact resistance, and (e) 0.1-15 parts by weight of metal particles having 10 .mu.m or less of weight average particle size and 3 or more of aspect ratio, and 60% by weight or more of (e) metal particles being included in (b) a polyamide.Type: GrantFiled: January 24, 1994Date of Patent: October 17, 1995Assignee: Sumitomo Chemical Company, Ltd.Inventors: Hiroshi Hagimori, Yasuro Suzuki, Kaoru Kitadono, Takashi Sanada
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Patent number: 5451632Abstract: A polycarbonate-polyorganosiloxane copolymer comprising a repeating unit I represented by the general formula: ##STR1## a repeating unit II represented by the general formula: ##STR2## a structural unit III represented by the general formula: ##STR3## and a terminal group IV of polyhalogenophenoxy group represented by the general formula: ##STR4## wherein symbols in the formulae are the same as those described in the specification, is disclosed. Content of the repeating unit II based on the total of contents of the repeating unit I and the repeating unit II and content of the structural unit III based on the total of contents of the repeating unit I, the repeating unit II and the structural unit III are in specific ranges, respectively. Resin compositions comprising the polycarbonate-polyorganosiloxane copolymer and a resin, such as a polycarbonate, a fluororesin, a styrenic resin and the like, inorganic filler or pigment is also disclosed.Type: GrantFiled: October 4, 1993Date of Patent: September 19, 1995Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Ryozo Okumura, Masaya Okamoto
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Patent number: 5447969Abstract: A polyurethane composition excellent in chlorine resistance containing 0.1 to 10% by weight, based on the polyurethane, of hydrotalcite which has water of crystallization and a C.sub.10 -C.sub.30 fatty acid adhered thereto, capable of being stably spun over a long period of time, and exhibiting neither discoloration in the step of tannin solution treatment nor swelling during chlorine immersion treatment.Type: GrantFiled: May 21, 1993Date of Patent: September 5, 1995Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Yoshiaki Kojima, Akihiko Yoshizato
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Patent number: 5447967Abstract: The invention relates to a biocompatible ceramic dental prosthesis having a translucency similar to that of natural tooth enamel and a high mechanical strength.It comprises a rigid, porous infrastructure obtained by the reactive calcination of fine particles of alumina/magnesia spinel, alumina and magnesia, the pores of which are occupied by glass infiltrated at high temperature.The invention also relates to a manufacturing process for producing such a prosthesis.Type: GrantFiled: October 7, 1993Date of Patent: September 5, 1995Inventor: Michele Tyszblat
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Patent number: 5434210Abstract: Thermal spray powders are characterized by the presence of a matrix-forming component, a solid lubricant component and a plastic component. Abradable coatings formed by thermal spraying the powders abrade readily to form abradable seals. The abradable coatings have a metal, metal alloy, or ceramic matrix with discrete inclusions of solid lubricant and plastic. The thermal spray powders may be prepared as mechanically fused agglomerates.Type: GrantFiled: September 28, 1992Date of Patent: July 18, 1995Assignee: Sulzer Plasma Technik, Inc.Inventors: Subramaniam Rangaswamy, Robert A. Miller
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Patent number: 5432224Abstract: Moldable compositions comprising metallic powder or combination thereof with ceramic powder, mixed an organic binder are disclosed, at least a part of which comprises a synthetic resin component (A) having a heat deformation temperature of 130.degree. C. or higher. The component A may be used in combination with another component (B) having a melting point of 30.degree. C.-100.degree. C., with or without another thermoplastic component (C), having a heat deformation temperature of 13.degree. C. or less. Moldable compositions, comprising metallic and/or ceramic powder mixed with an organic binder comprising a secondary or tertiary amine (D), or combination thereof with a thermoplastic resin (E), are also disclosed.Type: GrantFiled: July 22, 1991Date of Patent: July 11, 1995Assignee: Sanyo Chemical Industries, Ltd.Inventors: Jiroh Ryuhgoh, Kohshi Kawamoto, Tadahiro Osanaga, Yoshiroh Nakata
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Patent number: 5432223Abstract: A novel high-performance binder system is provided for the fabrication of segregation-free iron based powder blends. The blends are prepared by using a binder system comprising thermoplastic resin polyvinylpyrrolidone and a suitable compatible plasticizer such as polyethylene glycol, and optional solid lubricants. The binder system enables the manufacture of segregation-free iron-based powder blends with high flow rate and compressibility, enhanced apparent density, green strength and transverse rupture strength, and low dimensional variations compared to unbonded powder blends and to blends made with PVP or PEG only as the binder.Type: GrantFiled: August 16, 1994Date of Patent: July 11, 1995Assignee: National Research Council of CanadaInventors: Blaise Champagne, Kenneth Cole, Sylvain Pelletier
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Patent number: 5430074Abstract: A gum-colored dental composite is provided which may be used in class V dental restorations or as a cosmetic coating for the gingival portion of a tooth. A kit is also provided which enables a gum-colored dental composite to be formulated which closely resembles the natural gum coloration of any patient's gums. The dental composite may be used to counter the illusion of long teeth which occurs when a gum line recedes. The dental composite may also be used on other composite resins, porcelains and metals.Type: GrantFiled: September 29, 1993Date of Patent: July 4, 1995Assignee: Jeneric/Pentron, IncorporatedInventors: Nina Y. Barnes, Ronald Feinman, Samuel Waknine, Bruce H. Alpert
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Patent number: 5428096Abstract: An oil-repellent fluororubber composition obtained by compounding a low-molecular weight tetrafluoroethylene resin with a peroxide crosslinked fluororubber having a Mooney viscosity of 90 or more ML.sub.1+10 (100.degree. C.) or compounding a low-molecular weight tetrafluoroethylene resin and an inorganic filler selected from powders of solid substances, such as iron, nickel, cobalt, iron-cobalt alloy, molybdenum, tungsten, tantalum and tungsten-carbide, having surface energy higher than that of copper with a peroxide crosslinked fluororubber. An oil-repellent fluororubber elastomer having excellent oil repellency and at the same time maintaining original mechanical and physical characteristics sufficiently can be obtained, using easily available materials on the market without any special means of processing and treatment.Type: GrantFiled: February 18, 1994Date of Patent: June 27, 1995Assignee: Kinyosha Company, LimitedInventor: Noritomo Fukunaga
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Patent number: 5419936Abstract: Bottles can be made, especially by extrusion stretch blow moulding, using a thermoplastic polymer composition comprising a polymer, preferably a polyester, which contains metal particles especially of sb, which intrinsically absorb radiation in the wavelength region 500 nm to 2000 nm, in a quantity such that the reheat time of the polymer is less than the reheat time of the polymer in the absence of that quantity of particles. A method of making such metal containing polymer compositions by reducing a metal compound in situ is also described.Type: GrantFiled: July 6, 1993Date of Patent: May 30, 1995Assignee: ICI Chemical Industries PLCInventor: Neil Tindale
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Patent number: 5416156Abstract: A surface coating composition comprising, in combination, a fibrillated polymer matrix, at least one pigment, at least one binder, and at least one solvent, and a method for the manufacture thereof.Type: GrantFiled: December 20, 1993Date of Patent: May 16, 1995Assignee: Revlon Consumer Products CorporationInventor: Melvin E. Kamen
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Patent number: 5409968Abstract: The invention provides semi-conductive, static dissipative polymeric composites comprising:a) an insulative polymeric resin, andb) from about 5 to about 35 volume percent of at least one high aspect ratio filler having a thin-film inorganic layer of from about 10 .ANG. to about 1000 .ANG. of a highly conductive metal and an overlayer of an insulative metal oxide, said layer having an average coating thickness of from about 2 .ANG. to about 200 .ANG.,the composites having volume resistivities of from about 1.times.10.sup.4 ohm-cm to about 1.times.10.sup.11 ohm-cm.Type: GrantFiled: November 6, 1992Date of Patent: April 25, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: William J. Clatanoff, Craig S. Chamberlain
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Patent number: 5409986Abstract: The present invention relates to a covering based on thermoplastic elastomers, especially a floor covering.The matrix constituting such a covering is an alloy containing, as base, a styrene-based thermoplastic elastomer, as reinforcement, a styrene-based polymer and, as flexibilizer, an olefin polymer.The coverings thus obtained satisfy the wear standards of a floor covering, can be calendered and exhibit good resistance to cigarette burns.Type: GrantFiled: June 14, 1993Date of Patent: April 25, 1995Assignee: Gerflor SAInventors: Jean-Michel Boudry, Gilles Finaz, Bernard J. Gagnaire, Cu-Cong Trinh
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Patent number: 5405906Abstract: Nonlinear optical composites with large third-order optical response compd of metal clusters uniformly dispersed in polymers are prepared by vapor deposition of a metal onto a cold support while simultaneously cocondensing a vapor of an organic material. Where the organic material is a monomer, it polymerizes either when it comes in contact of the metal and/or when the cold surface is warmed. The unpolymerized monomer is removed to yield a processable composite. When the organic material is a diluent, it deposits as a solid on the cold surface forming a dispersion of the solid metal clusters in the liquid diluent. A polymer solution is then mixed with the dispersion and the composite is formed after removal of the diluent and the solvent for the polymer.Type: GrantFiled: April 29, 1993Date of Patent: April 11, 1995Assignee: The United States of America as represented by the Secretary of the NavyInventors: Allan W. Olsen, Zakya H. Kafafi
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Patent number: 5397828Abstract: A biaxially stretched polyester film is disclosed.The biaxially stretched polyester film comprises substantially spherical silica particles of colloidal state having average diameters ranging from approximately 20 nm to approximately 200 nm in amounts ranging from approximately 0.005% to approximately 1.0% by weight based on the total weight of the polyester; and alumina particles having average diameters ranging from approximately 50 nm to approximately 500 nm in amounts ranging from approximately 0.05% to approximately 5.0% by weight, the average diameter of the alumina particles being larger than that of the silica particles.The biaxially stretched film prepared according to the present invention has excellent surface properties such as slip property and abrasion resistance, so that the film may be used for manufacturing final products without scratches and white powders occurring thereon.Type: GrantFiled: June 24, 1994Date of Patent: March 14, 1995Assignee: Cheil Synthetics Inc.Inventors: Dae W. Ihm, Jeong L. Kim, Seung B. Jun
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Patent number: 5391606Abstract: Emissive compositions are described that can be applied as a coating to the surface of an investment casting mold to increase or decrease the rate of cooling of a casting within the mold. A coating that decreases the rate of cooling of an investment casting within an investment casting mold may comprise a compound having an emissivity less than the emissivity of the mold; a high temperature glass-forming material and a solvent to make a slurry. Similarly, a coating that increases the rate of cooling may comprise a compound having an emissivity greater than the emissivity of the mold; a low temperature glass-forming material and a solvent to make a slurry. Also disclosed in a method of investment casting wherein an emissive composition is applied to the investment casting mold.Type: GrantFiled: October 4, 1993Date of Patent: February 21, 1995Assignee: Nalco Chemical CompanyInventor: Ronald S. Doles
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Patent number: 5384075Abstract: An addition-curable type organopolysiloxane composition having a volume resistivity of 10.sup.7 .OMEGA.cm or below, comprising (A) an organopolysiloxane having at least two alkenyl group in its molecule and a viscosity at 25.degree. C. of from 100 to 200,000 cSt, (B) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms in its molecule, (C) a platinum group metal catalyst, (D) an organosilicon compound which has at least one silicon-bonded hydrogen atom in its molecule and in which at least one member selected from the group consisting of epoxy group-containing organic groups and alkoxy groups is attached to a silicon atom, and (E) an electrically conductive filler. This composition can be cured by an ultra high frequency heating system to form an adhesive cured product. It is therefore possible to obtain cured products with stable physical properties under constantly fixed conditions irrespective of the heat capacity of adherends.Type: GrantFiled: March 26, 1993Date of Patent: January 24, 1995Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Takehide Okami
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Patent number: 5360666Abstract: During radiotherapy for malignant conditions, healthy tissues can suffer from radiation damage. Traditional radiation shields designed to protect healthy tissues are prepared by a lengthy, multi-step complex procedure. Materials are described for preparation of a radiation shield for use during radiation therapy, especially therapy of the head and neck, where the material comprises a composite of non-radioactive, non-toxic high atomic density metal or metal alloy spherical particles dispersed in a manually moldable elastomeric material. Custom radiation shields are formulated of this material without the need for use of impressions or molds. Healthy tissues may then be shielded during radiation therapy by positioning the custom-fitted radiation shield in the desired location on the patient's body.Type: GrantFiled: January 11, 1993Date of Patent: November 1, 1994Assignee: American Dental Association Health FoundationInventor: Frederick Eichmiller
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Patent number: 5358992Abstract: In accordance with the present invention, there is provided a novel composition for attaching a semiconductor device to a substrate. The invention composition comprises liquid polycyanate ester monomer, electrically conductive filler rendered substantially free of catalytically active metal ions and a curing catalyst. Treatment of filler to render it free of catalytically active metal ions significantly extends the pot life of the composition.Type: GrantFiled: February 26, 1993Date of Patent: October 25, 1994Assignee: Quantum Materials, Inc.Inventors: Stephen M. Dershem, Deborah L. Derfelt, Dennis B. Patterson
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Patent number: 5354802Abstract: The present invention provides a resin composition enhanced in melt tension and remarkably improved in blow moldability without a parison being drawing down during blow molding, while being freed from the tendency to gelation at high viscosity, maintaining stable flowability and capable of effectively producing a blow molded article of comparatively large size having uniform thickness and excellent appearance.A resin composition for blow molding prepared by compounding 100 parts by weight of a resin component composed of:(A) 1 to 99 parts by weight of a thermoplastic polyester resin mainly comprising an aromatic dicarboxylic acid or the ester forming derivative thereof and an aliphatic dihydroxy compound having 2 to 8 carbon atoms and(B) 99 to 1 parts by weight of a thermoplastic polyamide resin with(C) 0.2 to 10 parts by weight of a styrenic copolymer comprising 40 to 97% by weight of styrene, 60 to 3% by weight of a glycidyl ester of an .alpha.,.beta.Type: GrantFiled: February 11, 1993Date of Patent: October 11, 1994Assignee: Polyplastics Co., Ltd.Inventors: Toshio Shiwaku, Kenji Hijikata, Kenji Furui, Masato Suzuki
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Patent number: 5344857Abstract: A water based coating composition which has excellent shelf stability and can be cured by ordinary baking in the absence of a sulfonic acid-containing acid catalyst and which gives a coating having excellent adhesion and excellent water resistance. The water based coating composition can be obtained by dissolving or dispersing50 to 80% by weight, as a solid content, of a water-soluble polyester resin prepared by polycondensing a carboxylic acid component containing 10 to 60 mol % of a polycarboxylic acid having 3 to 4 carboxyl groups per molecule and 40 to 90 mol % of a dicarboxylic acid and 1.1 to 2.0 mol, per mole of the carboxylic acid component, of a glycol component, to obtain a polyester resin having a free carboxyl group, and dissolving the polyester resin in water in the presence of a base,5 to 20% by weight, as a solid content, of a water based bisphenol type epoxy resin, and15 to 45% by weight, as a solid content of an alkyl-etherified amino resin, in an aqueous medium.Type: GrantFiled: July 10, 1992Date of Patent: September 6, 1994Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Mituo Umezawa, Masashi Nakamura, Hirosi Kubota
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Patent number: 5322901Abstract: The disclosure describes a resin and rubber composition with good heat-shrinkability characteristics. Also described is a resin and/or rubber composition having dispersed therein a metal compound used for heating the composition.Type: GrantFiled: October 25, 1991Date of Patent: June 21, 1994Assignee: Toyoda Gosei Co., Ltd.Inventor: Mitsuru Kato
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Patent number: 5322864Abstract: An epoxy resin composition comprising (a) a low-viscosity epoxy resin having a viscosity of not more than 100 poise at 25.degree. C. which contains a tri- or tetrafunctional liquid aromatic epoxy resin, (b) a liquid curing agent selected from the group consisting of an imidazole compound, the combination of a liquid alicyclic acid anhydride and an imidazole compound, the combination of a liquid alicyclic amine and an imidazole compound, (c) a metal powder having an average particle size of not more than 125 .mu.m or an inorganic powder consisted of 50 parts or more by weight of a metal powder having an average particle size of not more than 125 3/4m and less than 50 parts by weight of an inorganic filler other than a metal powder, whose average particle size is smaller than that of the metal powder, based on the total amount of the metal powder and the inorganic filler.Type: GrantFiled: February 2, 1993Date of Patent: June 21, 1994Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Toshio Sugimoto, Sadahiko Kawaguchi, Akira Esaki
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Patent number: 5302683Abstract: The present invention relates to a process for preparing coating compositions which comprises condensing a mixture containing (A) at least one silicone resin containing Si-bonded alkoxy groups and, if desired, silanol groups and/or at least one silane and/or siloxane which contains Si-bonded alkoxy groups and, if desired, silanol groups to form a silicone resin, (B) a basic condensation catalyst in an amount sufficient to render this mixture basic, (C) optionally water and (D) optionally an organic solvent.The resultant coating compositions are preferably employed in the form of a solution, emulsion or dispersion.Type: GrantFiled: April 26, 1993Date of Patent: April 12, 1994Assignee: Wacker-Chemie GmbHInventors: Richard Weidner, Erich Bildl, Volker Frey, Manfred Meisenberger, Reinhardt Mueller
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Patent number: 5296523Abstract: This invention relates to an inorganic colorant, to a paste made from that colorant by dispersing that colorant into a vehicle, and to a water based paint made using either these colorants or pastes. This invention involves an improvement of the dispersibility of the inorganic colorant into a dispersion medium by which that inorganic colorant, having polar groups on its surface, is treated by low temperature plasma polymerization of a substantially non-polar monomer to form a non-polar group on the surface of the inorganic colorant. The inorganic colorants, to which this invention is applied to improve their dispersibility, are of a wide variety of species. According to the invention, due to the great improvement in the dispersibility of the inorganic colorants, the possible range of formulation of inorganic colorant and the dispersion medium is enlarged.Type: GrantFiled: February 12, 1992Date of Patent: March 22, 1994Assignee: Nippon Paint Co., Ltd.Inventors: Toshikatsu Kobayashi, Kenji Kouguchi, Hiroyuki Kageyama
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Patent number: 5283019Abstract: The preparation of porous ceramic bodies by sintering certain curable organopolysiloxanes filled with silicon carbide powders. This process is advantageous in that the green bodies have relative high strengths and thus can be easily handled and, if desired, machined before sintering.Type: GrantFiled: May 4, 1993Date of Patent: February 1, 1994Assignee: Dow Corning CorporationInventors: William H. Atwell, Chandan K. Saha, Gregg A. Zank
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Patent number: 5281644Abstract: There are disclosed methods and compositions for retarding the ambient temperature hardening of a phenolic resole resin alone or with an aggregate when such resin is contacted with a nitroalkane and a hardening agent such as lightburned magnesium oxide, an organic ester functional hardening agent, and mixtures of lightburned magnesium oxide and an organic ester functional hardening agent in an alkaline medium. There is also disclosed a hardener composition for phenolic resole resins wherein the hardener composition consists essentially of a solution of a nitroalkane in an organic ester functional hardening agent.Type: GrantFiled: November 4, 1992Date of Patent: January 25, 1994Assignee: Borden, Inc.Inventors: S. Raja Iyer, David R. Armbruster, Arthur H. Gerber
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Patent number: 5280052Abstract: A utilitarian and/or decorative object and a method for forming the object fabricated mainly of a plastic material, such as polyester, having a metallic outer face which thereby imparts to this object the appearance and/or hand of a like object made entirely of metal. In this technique, a mixture of a liquid monomer, a curing agent therefor, a dispersion of metal particles and floatable particles are poured into a mold for forming the object. The metal particles are permitted to settle in the mold or the mold is centrifuged to cause the metal particles to migrate toward the outer or lower region of the piece and concentrate in this region before the monomer polymerizes and hardens to bind the particles.Type: GrantFiled: October 9, 1992Date of Patent: January 18, 1994Assignee: Intaglio Ltd.Inventors: Roger Questel, Martin Epstein
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Patent number: 5280086Abstract: Moldable compositions comprising metallic powder and/or ceramic powder, mixed an organic binder are disclosed, which comprises an ether polyamine of the formula (1) and/or a primary amine of the formula (2) : ##STR1## wherein A.sup.1 and A.sup.2 are alkylene groups or aryl-substituted alkylene groups; X.sup.1 is a residue of an active hydrogen atom-containing compound having at least 2 active hydrogen atoms; n is at least 1; m is 2-8; and X.sup.2 is an amino group represented by ##STR2## wherein R.sup.1 and R.sup.2 are hydrogen atom, alkyl groups or groups of the formula : --(A.sup.3 --O).sub.k --R.sup.3, wherein A.sup.3 is an alkylene group, R.sup.3 is hydrogen atom or an alkyl group and k is at least 1; R is hydrogen atom or an alkyl groups containing 1-30 carbon atoms, A is an alkylene group containing 1-4 carbon atoms, and r is an integer of at least 1.Type: GrantFiled: February 6, 1991Date of Patent: January 18, 1994Assignee: Sanyo Chemical Industries, Ltd.Inventors: Kohshi Kawamoto, Tadahiro Osanaga
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Patent number: 5272199Abstract: A ski coating made from sintered PE contains fillers with raised thermal conductivity for improvement of the running characteristics. Additionally, additives are employed which possess melting temperatures in the region between -20.degree. C. and +10.degree. C.Type: GrantFiled: February 4, 1992Date of Patent: December 21, 1993Assignee: IMS Kunststoff AGInventor: Urs Geissbuhler
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Patent number: 5262466Abstract: A masking composition, which serves to prevent diffusion of one metal into selected areas of a substrate of another metal when said composition is applied to said selected areas, comprises a suspension of a masking powder in an aqueous solution comprising water and water soluble alcohol in which is dissolved polyvinyl alcohol.Type: GrantFiled: November 1, 1991Date of Patent: November 16, 1993Assignee: Alloy Surfaces Co. Inc.Inventor: Alfonso L. Baldi
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Patent number: 5250585Abstract: A dental material in powder form and being based on(a) aluminum fluorosilicate glass,(b) base metals suitable for dental use, or alloys of these with each other, and optionally(c) dry polycarboxylic acid and/or(d) a chelating agent,which contains at least some of constituent (a) as a sintered mixture with constituent (b).Type: GrantFiled: March 21, 1990Date of Patent: October 5, 1993Assignee: ESPE Stiftung & Co. Produktions- und Vertriebs KGInventors: Rainer Guggenberger, Klaus Ellrich, Oswald Gasser, John W. McLean, Owen Makinson
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Patent number: 5238975Abstract: A microwave radiation absorbing adhesive comprises dissipative particles bound in a thermoplastic or thermosetting adhesive The absorbing adhesive may be applied directly to the surface of any object, or to an irregularly shaped object, or into cracks or crevices in or between objects, including conventional absorbers. Several types of dissipative particles and adhesives may be used.Type: GrantFiled: December 14, 1992Date of Patent: August 24, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Eric J. Johnson, Charles E. Boyer, III, Edmond J. Nielson, Chris A. Minick
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Patent number: 5236988Abstract: An engineering plastic composition with excellent flowability, heat stability, and desirable mechanical properties is provided. The composition contains an engineering plastic material and an aliphatic polyester.Type: GrantFiled: September 25, 1990Date of Patent: August 17, 1993Assignees: Sekisui Chemical Co., Ltd., Kabushiki Kaisha Sanko Kaihatsu Kagaku KenkyushoInventors: Kazuo Doyama, Makoto Yamaguchi, Makoto Ohsuga, Akihiro Niki, Toranosuke Saito, Hiroki Tsunomachi, Daishiro Kishimoto
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Patent number: 5234758Abstract: Nonlinear optical composites with large third-order optical response compd of metal clusters uniformly dispersed in polymers are prepared by vapor deposition of a metal onto a cold support while simultaneously cocondensing a vapor of an organic material. Where the organic material is a monomer, it polymerizes either when it comes in contact of the metal and/or when the cold surface is warmed. The unpolymerized monomer is removed to yield a processable composite. When the organic material is a diluent, it deposits as a solid on the cold surface forming a dispersion of the solid metal clusters in the liquid diluent. A polymer solution is then mixed with the dispersion and the composite is formed after removal of the diluent and the solvent for the polymer.Type: GrantFiled: June 3, 1992Date of Patent: August 10, 1993Assignee: The United States of Americas as represented by the Secretary of the NavyInventors: Allan W. Olsen, Zakya H. Kafafi
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Patent number: 5232962Abstract: An adhesive bonding composition with bond line limiting spacer system includes an adhesive paste composition having a hardenable adhesive component, and a plurality of spacer elements distributed in the adhesive paste composition. The spacer elements are sized to provide a self-limiting bond line thickness between the surfaces to be bonded, the bond line thickness being maintained at a selected lower limit by the spacer elements.Type: GrantFiled: October 9, 1991Date of Patent: August 3, 1993Assignee: Quantum Materials, Inc.Inventors: Stephen M. Dershem, Jose A. Osuna, Jr.
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Patent number: 5229439Abstract: According to the invention a moulding is produced by compression and extrusion at a temperature between 120.degree. and 160.degree. of a mixture of heat-setting resin and at the most 30% related to the total weight of mixture of a filler with a grain size between 50 micrometers and 4 mm. The filler is a mineral filler and/or natural fibres.Type: GrantFiled: May 8, 1992Date of Patent: July 20, 1993Assignee: L'OrealInventor: Jean-Louis H. Gueret
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Patent number: 5204401Abstract: There is disclosed a metallic and nonmetallic water borne base coat compositions exhibiting excellent appearance. A method for long term stability and the introduction of aluminum flake pigments into a water borne coating is also disclosed. The method is based on storing the aluminum flake in a solvent environment with introduction of the aluminum flake in to the aqueous environment just before appling the base coat coating. A water reducible acrylic resin with nonionic and acid functionality derived from vinyl monomers having nonionic and urethane functionality has been disclosed that allows for direct introduction of aluminum flake in to an aqueous environment. The coating vehicle is based on acrylic latex vehicle which exhibits excellent drying and film properties. The rheology control agent employed allows for a wetter application of the coating to the substrate. The coating compositions disclosed are also in compliance with current and proposed volatile organic compound regulations.Type: GrantFiled: July 13, 1990Date of Patent: April 20, 1993Assignee: BASF CorporationInventors: James L. Anderson, Jr., Horst J. Finkenauer, David L. Newton, Jeff P. Jones
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Patent number: 5196471Abstract: Thermal spray powders are characterized by the presence of a matrix-forming component, a solid lubricant component and a plastic component. Abradable coatings formed by thermal spraying the powders abrade readily to form abradable seals. The abradable coatings have a metal, metal alloy, or ceramic matrix with discrete inclusions of solid lubricant and plastic. The thermal spray powders may be prepared as mechanically fused agglomerates.Type: GrantFiled: November 19, 1990Date of Patent: March 23, 1993Assignee: Sulzer Plasma Technik, Inc.Inventors: Subramaniam Rangaswamy, Robert A. Miller
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Patent number: 5190990Abstract: During radiotherapy for malignant conditions, healthy tissues can suffer from radiation damage. Traditional radiation shields designed to protect healthy tissues are prepared by a lengthy, multi-step complex procedure. Materials are described for preparation of a radiation shield for use during radiation therapy, especially therapy of the head and neck, where the material comprises a composite of non-radioactive, non-toxic high atomic density metal or metal alloy spherical particles dispersed in a manually moldable elastomeric material. Custom radiation shields are formulated of this material without the need for use of impressions or molds. Healthy tissues may then be shielded during radiation therapy by positioning the custom-fitted radiation shield in the desired location on the patient's body.Type: GrantFiled: April 27, 1990Date of Patent: March 2, 1993Assignee: American Dental Association Health FoundationInventor: Frederick Eichmiller
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Patent number: 5189078Abstract: A microwave radiation absorbing adhesive comprises dissipative particles bound in a thermoplastic or thermosetting adhesive. The absorbing adhesive may be applied directly to the surface of any object, or to an irregularly shaped object, or into cracks or crevices in or between objects, including conventional absorbers. Several types of dissipative particles and adhesives may be used.Type: GrantFiled: October 18, 1989Date of Patent: February 23, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Eric J. Johnson, Charles E. Boyer, III, Edmond J. Nielsen, Chris A. Minick
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Patent number: 5187220Abstract: A flake-containing coating powder is obtained by admixing a coating powder that based upon a thermosetting resin and metallic or non-metalic flake. The powder and flake are mixed at a temperature in the range of above the softening temperature of the thermosetting resin of the coating powder but below the melting temperature of the thermosetting resin and with sufficient mechanical shear to prevent agglomeration of the coating powder particulates. Mixing is for a time sufficient to embed at least about 75% by weight of the flake into the coating powder.Type: GrantFiled: December 21, 1990Date of Patent: February 16, 1993Assignee: Morton International, Inc.Inventors: Douglas S. Richart, Andrew T. Daly
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Patent number: 5177124Abstract: A utilitarian and/or decorative object and a method for forming the object fabricated mainly of a plastic material, such as polyester, having a metallic outer face which thereby imparts to this object the appearance and/or hand of a like object made entirely of metal. In this technique, a mixture of a liquid monomer, a curing agent therefor, a dispersion of metal particles and floatable particles are poured into a mold for forming the object. The metal particles are permitted to settle in the mold or the mold is centrifuged to cause the metal particles to migrate toward the outer or lower region of the piece and concentrate in this region before the monomer polymerizes and hardens to bind the particles.Type: GrantFiled: March 27, 1991Date of Patent: January 5, 1993Assignee: Intaglio Ltd.Inventors: Roger Questel, Martin Epstein
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Patent number: 5168105Abstract: There is disclosed a metallic and nonmetallic water borne base coat compositions exhibiting excellent appearance. A method for long term stability and the introduction of aluminum flake pigments into a water borne coating is also disclosed. The method is based on storing the aluminum flake in a solvent environment with introduction of the aluminum flake in to the aqueous environment just before appling the base coat coating. A water reducible acrylic resin with nonionic and acid functionality has been disclosed that allows for direct introduction of aluminum flake in to an aqueous environment. The coating vehicle is based on acrylic latex vehicle which exhibits excellent drying and film properties. The rheology control agent employed allows for a wetter application of the coating to the substrate. The coating compositions disclosed are also in compliance with current and proposed volatile organic compound regulations.Type: GrantFiled: September 10, 1990Date of Patent: December 1, 1992Assignee: BASF CorporationInventors: James L. Anderson, Jr., Horst J. Finkenauer, David L. Newton, Jeff P. Jones
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Patent number: 5166255Abstract: There is disclosed a metallic and nonmettalic water borne base coat compositions exhibiting excellent appearance. A method for long term stability and the introduction of aluminum flake pigments into a water borne coating is also disclosed. The method is based on storing the aluminum flake in a solvent environment with introduction of the aluminum flake in to the aqueous environment just before applying the base coat coating. A water reducible acrylic resin with nonionic and acid functionality has been disclosed that allows for direct introduction of aluminum flake in to an aqueous environment. The coating vehicle is based on acrylic latex vehicle which exhibits excellent drying and film properties. The rheology control agent employed allows for a drier application of the coating to the substrate. The coating compositions disclosed are also in compliance with current and proposed volatile organic compound regulations.Type: GrantFiled: September 10, 1990Date of Patent: November 24, 1992Assignee: BASF CorporationInventors: James L. Anderson, Jr., Horst J. Finkenauer, David L. Newton, Jeff P. Jones, Craig J. McClanahan