Group V Metal Atom Dnrm (i.e., V, Nb, Ta, As, Bi, Sb) Patents (Class 524/408)
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Patent number: 6933331Abstract: A nanocomposite structure comprising a nanostructured filler or carrier intimately mixed with a matrix, and methods of making such a structure. The nanostructured filler has a domain size sufficiently small to alter an electrical, magnetic, optical, electrochemical, chemical, thermal, biomedical, or tribological property of either filler or composite by at least 20%.Type: GrantFiled: February 20, 2001Date of Patent: August 23, 2005Assignee: NanoProducts CorporationInventors: Tapesh Yadav, Clayton Kostelecky
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Publication number: 20040242745Abstract: The present invention provides a rubber composition for a tire capable of improving gripping performance of a tire and a tire using the rubber composition. More specifically, the present invention relates to a rubber composition for a tire tread comprising 1 to 150 parts by weight of a piezoelectric material, based on 100 parts by weight of a natural rubber and/or a diene synthetic rubber and a tire using the rubber composition for a tire tread. The average particle size of the piezoelectric material is preferably 0.01 to 50 &mgr;m.Type: ApplicationFiled: May 10, 2004Publication date: December 2, 2004Inventors: Kazuyuki Nishioka, Hiroyuki Kishimoto, Takahiro Mabuchi, Kiyoshige Muraoka
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Patent number: 6791839Abstract: A composition that can be used to prepare a thermal interface material includes: A) a curable matrix having a curing temperature, B) a metal filler having a low melting point, optionally C) a spacer, and optionally D) a conductive filler. The temperature at which component B) commences softening is less than the curing temperature of component A). A thermal interface material is prepared by: 1) interposing the composition between an electronic component and a heat spreader to form a bondline, 2) heating the composition to a temperature higher than the temperature at which component B) commences softening but less than the curing temperature of component A) and optionally applying pressure to the composition, and 3) heating the composition to a temperature greater than or equal to the curing temperature of component A). The average particle size of component B) is greater than or equal to the bondline thickness.Type: GrantFiled: June 25, 2002Date of Patent: September 14, 2004Assignee: Dow Corning CorporationInventor: Dorab Edul Bhagwagar
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Publication number: 20040167266Abstract: A film with excellent corrosion resistance, alkali resistance, solvent resistance, and fingerprint resistance can be obtained by treating the surface of a metallic material with a water-based surface treatment agent comprised of a specified water-soluble resin or water-based emulsion resin such as a cationic or nonionic urethane, acrylic, epoxy, polyester, or polyamide resin, a phenolic resin-type compound with a specified structure, and a metal compound containing at least one metal selected from the group consisting of Zr, Ti, V, Mo, W, Mn, and Ce.Type: ApplicationFiled: December 15, 2003Publication date: August 26, 2004Inventors: Ryu Hasegawa, Keiichi Ueno, Ryosuke Sako
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Publication number: 20040147652Abstract: Novel radiation attenuating material made of plastic material comprising a metallic filler consisting of a combination of at least two, preferably, three metals or metal derivatives (oxides or alloys) of different type, except lead, selected on the basis of discontinuities of the X- or gamma radiation absorption curve of the metals or metal derivatives, so as to obtain complementarity of the curves on the energy range of radiation to be absorbed or attenuated, to optimise radiation protection on the energy range. The metallic filler is preferably in the form of a powder whereof the particle dimensions are for the major part less than 50 &mgr;m. The filler is present in proportions ranging between 70 and 95% of the weight of the final material and is selected preferably among dense metals such as tungsten, tin, bismuth, barium, antimony, lanthanides, tantalum or derivatives thereof, in particular oxides and alloys.Type: ApplicationFiled: November 21, 2003Publication date: July 29, 2004Inventors: Pierre-Marie Lemer, Francois du Laurent de la Barre
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Patent number: 6758887Abstract: A waterborne epoxy corrosion resistant primer comprises a waterborne epoxy, a curing agent, and a non-chromate containing corrosion-inhibiting pigment.Type: GrantFiled: November 29, 2002Date of Patent: July 6, 2004Assignee: United Technologies CorporationInventor: Promila P. Bhatia
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Patent number: 6737013Abstract: A ceramic-molding binder includes a vinyl alcohol polymer having an ethylene unit content of 2 to 19 mole %, a polymerization degree of 200 to 2,000, a degree of saponification of 80 to 99.99 mole %, and a carboxylic acid and lactone ring content of 0.02 to 0.4 mole %. The use of the ceramic-molding binder provides green moldings with better formability and handling properties during the formation of smaller green moldings of more complex shape, and also provides ceramic products of good quality, higher yields, and fewer ceramic cracks when obtained by sintering such green moldings.Type: GrantFiled: November 2, 2000Date of Patent: May 18, 2004Assignee: Kuraray Co., LtdInventors: Takeshi Kusudou, Toshiyuki Akasawa
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Patent number: 6682823Abstract: It is the object of the present invention to provide a curable composition capable of giving a polymer electrolyte showing a high level of ionic conductivity and excellent mechanical strength as well. The invention provides a curable composition for polymer electrolyte which comprises the following constituents (A) to (D) as essential constituents: (A) a polysiloxane having a polyethylene oxide structure-containing group and/or a cyclic carbonate structure-containing group as a substituent on a silicon atom and having two or more SiH groups; (B) a compound having at least one structure selected from the group consisting of a phenylene unit, a siloxy linkage, an Si—N bond, a carbonyl group, an amide linkage and an amino group and having two or more alkenyl groups; (C) a hydrosilylation catalyst; and (D) an electrolyte salt compound.Type: GrantFiled: May 11, 2001Date of Patent: January 27, 2004Assignee: Kaneka CorporationInventor: Kenji Okada
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Patent number: 6656976Abstract: A procedure for making well dispersed suspensions containing mixtures of powders displaying a low viscosity which remain stable over an extended period of time includes suspensions prepared in aqueous and/or ethanolic media using a cationic polyelectrolyte at the inherent pH of the mixture. The method is particularly useful for making robust slurries for subsequent spray drying of free flowing granules to be used in the fabrication of cemented carbide or cermet bodies.Type: GrantFiled: April 26, 2001Date of Patent: December 2, 2003Assignee: Sandvik AktiebolagInventors: Lennart Bergström, Eric Laarz
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Patent number: 6649682Abstract: A paint system and process are disclosed for hardfacing metal surfaces. In one embodiment of the process, a paint including a dispersion of hard particles is first applied as a coating to a surface. Next, a paint including a dispersion of a braze alloy is applied over the layer of hard particles. The surface is then heated to cause the braze alloy to melt and infiltrate into the hard particles thereby bonding them to the metallic surface. In another embodiment, a first layer of adhesive is applied, and a hardfacing powder is applied onto the adhesive. Then a second layer of adhesive is applied, and a braze alloy powder is applied onto the second adhesive. Then the material is heated as in the first embodiment. In another embodiment, paint containing hard particles is coated onto the substrate, and an acid-containing cross-linked copolymer in the paint is then neutralized to increase the viscosity of the paint to prevent running.Type: GrantFiled: June 25, 2001Date of Patent: November 18, 2003Assignee: Conforma Clad, IncInventors: Ernest J. Breton, John M. Handzel, Otis K. Tennant
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Patent number: 6642314Abstract: Disclosed is a rubber composition containing (a) 50 parts to 100 parts by weight of polybutadiene rubber having a 1,4-cis bond content of 80 mol % to 100 mol % and a 1,2-vinyl bond content of 0 mol % to 2 mol %, which is modified with an alkoxysilyl group-containing compound, (b) 0 part to 50 parts by weight of diene rubber other than the above-mentioned component (a) (wherein the total amount of component (a) and component (b) is 100 parts by weight), (c) 10 parts to 50 parts by weight of a crosslinkable monomer, (d) 5 parts to 80 parts by weight of an inorganic filler and (e) 0.1 part to 10 parts by weight of an organic peroxide, and a solid golf ball improved in flight, durability and the feeling of ball hitting can be produced from the rubber composition.Type: GrantFiled: December 31, 2001Date of Patent: November 4, 2003Assignee: JSR CorporationInventors: Takuo Sone, Toshihiro Tadaki
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Patent number: 6639001Abstract: Methods of preparing polyolefin-based molded materials with improved adhesive/coating compatibility by incorporating saturated fatty acid amides and transition metal compounds in the polyolefin-based material prior to molding are described. Methods of producing coated or bonded polyolefin-based, molded materials are also described.Type: GrantFiled: August 21, 2001Date of Patent: October 28, 2003Assignee: Cognis Deutschland GmbH & Co. KGInventors: Paul Birnbrich, Joerg-Dieter Klamann, Rolf Tenhaef
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Patent number: 6626987Abstract: A stable modified metal oxide sol which contains from 2 to 50 wt %, as calculated as metal oxides, of particles (c) comprising colloidal particles (a) of a metal oxide having primary particle diameters of from 2 to 60 nm, as nuclei, and a coating material (b) consisting of colloidal particles of an acidic oxide coated on the surface of the particles (a), and which has primary particle diameters of from 2 to 100 nm.Type: GrantFiled: August 14, 2000Date of Patent: September 30, 2003Assignee: Nissan Chemical Industries, Ltd.Inventors: Keitaro Suzuki, Yoshinari Koyama, Motoko Iijima
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Patent number: 6610796Abstract: Disclosed is a flame retardant polybutyleneterephthalate resin prepared be copolymerizing a phosphorus-based flame retardant represented by the following formula I and a butyleneterephthalate unit: wherein R1 and R2 are different or the same and are methyl or butyl including a hydroxyl group.Type: GrantFiled: May 10, 2002Date of Patent: August 26, 2003Assignee: Kolon Industries Inc.Inventors: Young-Ik Seo, Chung-Seock Kang, Tae-Gun Choi, Jun-Myoung Song
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Patent number: 6576697Abstract: A malleable high density polymer material having a high density metal component and a polymer phase consisting of a rigid or hard component, and an elastomeric modifier for the hard component, and where the elastomeric component is chosen from one of several narrow molecular weight distribution ethylene/alpha-olefin elastomers. One advantage of the present invention is to achieve a surprisingly malleable, high density material that has unusual melt properties which may be used as a lead substitute in the making of for example, projectiles, shot, or angling weights. Another advantage of the present invention is to provide a lead substitute that is non-toxic.Type: GrantFiled: September 2, 1999Date of Patent: June 10, 2003Inventor: Thayer A. Brown, Jr.
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Patent number: 6521688Abstract: The present invention relates to laser-markable plastics, in particular thermoplastic polyurethanes, which are distinguished by the fact that they contain pigments having a coating of doped tin dioxide.Type: GrantFiled: October 17, 1997Date of Patent: February 18, 2003Assignees: Merck Patent Gesellschaft mit beschrankter Haftung, BASF AktiengesellschaftInventors: Rainer Linzmeier, Burkhard Krietsch, Frank Prissok
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Publication number: 20030017351Abstract: A thermosetting composite dielectric film characterized in that the film has flexibility and is made of a thermosetting resin such as an epoxy resin having an epoxy equivalent of 150 to 2500 and containing dielectric ceramics having a high dielectric constant and in that the film has a dielectric constant of 25 or more.Type: ApplicationFiled: May 29, 2002Publication date: January 23, 2003Applicant: Nippon Paint Co., Ltd.Inventors: Tadashi Hayashi, Mamoru Seio
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Publication number: 20020193472Abstract: A composition is disclosed that comprises:Type: ApplicationFiled: May 16, 2001Publication date: December 19, 2002Applicant: CROMPTON CORPORATIONInventor: E. Harry Jancis
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Patent number: 6444025Abstract: Zirconium-containing, red-tinged bismuth vanadate pigments of general formula I, BiVbOx.Cac(MoO4)d.ZreSifOy.Fz I wherein the variables have the following meanings: b 0.8 to 1.5; c 0 to 0.3; d 0 to 0.3; e 0.01 to 0.3; f 0 to 0.3; x (3/2+5b/2); y (2e+2 f); z 0.001 to 0.5, and a process for the preparation thereof and the use thereof in pigmenting high molecular weight organic materials such as surface-coatings, plastics and printing inks.Type: GrantFiled: March 12, 2001Date of Patent: September 3, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Leonardus Johannes Hubertus Erkens, Gregor Schmitt, Hendrikus Maria Anna Hamers, Johannes Maria Martinus Luijten, Jozef Gertruda Emanuel Mains, Helena Francisca Maria Schulpen-Vleugels
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Patent number: 6375864Abstract: The invention provides compositions and molded, extruded or formed phosphorescent plastic articles produced therefrom that contain non-radioactive, non-sulfide phosphorescent phosphor pigments that emit light in the visible spectrum, preferably metal oxide aluminate:europium-activated phosphorescent phosphor pigments, preferably in combination with polymer-soluble daylight fluorescent dyes, in transparent or translucent resins. The plastic articles produced from the compositions of the invention exhibit a remarkably rich, attractive, clear, brilliant fluorescent daylight color and a strong, long-lasting glow-in-the-dark luminescence having a color similar to that of the daylight color.Type: GrantFiled: November 10, 1998Date of Patent: April 23, 2002Assignee: M.A. HannaColor, a division of M.A. Hanna CompanyInventors: Tracy L. Phillips, Jerry Alan Bodi
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Patent number: 6355352Abstract: A fuser member comprising a support and a layer overlying the support, the layer including a fluorocarbon thermoplastic random copolymer, a curing agent having a bisphenol residue, a particulate filler containing zinc oxide, an aminosiloxane, and antimony-doped tin oxide particles, the cured fluorocarbon thermoplastics random copolymer having subunits of: -(CH2CF2)x-, -(CF2CF(CF3)y-, and -(CF2CF2)z-, wherein x is from 1 to 50 or 60 to 80 mole percent, y is from 10 to 90 mole percent, z is from 10 to 90 mole percent, and x+y+z equal 100 mole percent.Type: GrantFiled: June 30, 2000Date of Patent: March 12, 2002Assignee: NexPress Solutions LLCInventors: Jiann H. Chen, Joseph A. Pavlisko, Charles C. Anderson
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Publication number: 20020004543Abstract: The present invention relates to composite materials exhibiting passive domain-wall activated damping, methods for using passive domain-wall activated damping, and processes for producing materials that exhibit passive domain-wall activated damping. One typical embodiment uses a polymer matrix phase and a dispersed particulate phase that exhibits domain wall motion under an applied mechanical load. Materials that exhibit domain wall motion under an applied mechanical load include magnetostrictive, piezoelectric and electrostrictive materials. One specific embodiment used Terfenol-D as the damping phase, aligned by magnetization during curing in a polymer matrix. Other specific embodiments employed PZT-5H and PMN-PT as the damping phase.Type: ApplicationFiled: April 27, 2001Publication date: January 10, 2002Inventors: Greg P. Carman, Geoff McKnight
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Publication number: 20020002227Abstract: A process for preparing an anti-static film comprising incorporating a conductivity inducing material into a polymeric film. The conductivity inducing material is a non-volatile metal salt. The polymeric film is selected from polyurethane, polyolefins, polyvinyl chloride, nitrile rubber, polyisoprene, hydrogenated block copolymers, styrene-isoprene-styrene/styrene-butadiene-styrene block copolymers, styrene butadiene latexes, and natural rubber latex. Anti-static films and gloves prepared from such process are also disclosed.Type: ApplicationFiled: April 3, 2001Publication date: January 3, 2002Inventors: James R. Porter, William A. Koonce, Debkumar Bhattacharjee, Franklin E. Parks
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Patent number: 6335384Abstract: Disclosed are methods useful for treating vascular lesions wherein a non-particulate agent such as a metal coil is introduced into a vascular site (e.g., an aneurysm cavity) in conjunction with an embolizing composition comprising a biocompatible polymer and a biocompatible solvent. The biocompatible solvent is miscible or soluble in blood and also solubilizes the polymer during delivery. The biocompatible polymer is selected to be soluble in the biocompatible solvent but insoluble in blood. Upon contact with the blood, the biocompatible solvent dissipates from the embolic composition whereupon the biocompatible polymer precipitates. Precipitation of the polymer in the presence of the non-particular agent permits the agent to act as a structural lattice for the growing polymer precipitate. In another embodiment, the biocompatible polymer composition can be replaced with a biocompatible prepolymer composition containing a biocompatible prepolymer.Type: GrantFiled: October 10, 2000Date of Patent: January 1, 2002Assignee: Micro Therapeutics, Inc.Inventors: Scott Evans, John Perl, II, Richard Greff
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Patent number: 6306946Abstract: Disclosed is a select class of liquid crystalline polyesters and molding compositions comprising the polyesters and glass fiber. The liquid crystalline polyesters consist essentially of (1) diacid residues consisting essentially of (i) cyclohexanedicarboxylic acid residues and (ii) other diacid residues selected from terephthalic acid residues, 2,6-naphthalenedicarboxylic acid residues, or a mixture thereof; (2) diol residues consisting essentially of hydroquinone residues, 4,4′-biphenol residues or a mixture thereof; and, optionally, (3) p-hydroxybenzoic acid residues. In the above definition, the moles of diol residues are equal to the moles of diacid residues and the total of the (1), (2) and (3) mole percentages is equal to 100. The liquid crystalline polyesters have melting points determined by differential scanning calorimetry equal to or less than 360° C.Type: GrantFiled: November 8, 2000Date of Patent: October 23, 2001Assignee: Eastman Chemical CompanyInventors: Timothy Edward Long, William Ronald Darnell
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Patent number: 6294009Abstract: The invention relates to tantalum (V) nitride pigments with improved color values compared with predisclosed products, a process for producing such pigments and their use. According to the invention, pigments having an a* color value in the CIE Lab system of equal to/greater than 45, in particular equal to/greater than 50, are obtainable by after-treating a tantalum (V) nitride produced in a known manner in a salt melt at 100 to 600° C., in particular 300 to 500° C., in the course of 1 to 100 minutes, in particular 5 to 60 minutes. Preferably, the after treatment is carried out in an alkali-metal nitrate melt. The pigments can be used to color plastics and paints, and also enamel, glass and porcelain decorations.Type: GrantFiled: December 2, 1999Date of Patent: September 25, 2001Assignee: dmcInventors: Hans-Peter Letschert, Wilfried Voigt
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Patent number: 6268422Abstract: An adhesive composition containing a polyvinyl alcohol-stabilized butadiene polymer latex and a methylene donor compound. The butadiene polymer latex is prepared by an emulsion polymerization in the presence of polyvinyl alcohol. The adhesive composition may also contain other optional ingredients such as a supplemental polymeric film-forming component, a nitroso compound crosslinker, a maleimide compound crosslinker, a vulcanizing agent, and an acid-scavenging compound. The polyvinyl alcohol-stabilized butadiene polymer latex and methylene donor compound combine to provide a tightly crosslinked, robust film which provides for excellent adhesion and environmental resistance.Type: GrantFiled: December 4, 1995Date of Patent: July 31, 2001Assignee: Lord CorporationInventors: Mark A. Weih, Helmut W. Kucera, Patrick A. Warren, Douglas H. Mowrey
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Patent number: 6245847Abstract: An electrolyte comprises a composite of a polymer and a molten salt electrolyte immobilized within the polymer. The electrolyte is stable and ionically conducting at a temperature substantially equal to the melting point of the molten salt electrolyte. In this form, the electrolyte is suitable for use in electrochemical cells, supercapacitors or electrochromic windows and displays.Type: GrantFiled: April 6, 1999Date of Patent: June 12, 2001Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Kevin John Green, James Charles Wilson
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Patent number: 6239204Abstract: A crosslinked material of a polyether copolymer comprising: (A) 1 to 98% by mol of a repeating unit derived from a monomer represented by the formula (I): (B) 95 to 1% by mol of a repeating unit derived from a monomer represented by the formula (II): (C) 0.005 to 15% by mol of a repeating unit derived from a monomer having one epoxy group and at least one reactive functional group; provides a polymer solid electrolyte which is superior in ionic conductivity and also superior in processability, moldability, mechanical strength and flexibility, furthermore thermal resistance.Type: GrantFiled: October 21, 1998Date of Patent: May 29, 2001Assignee: Baiso Co., Ltd.Inventors: Katsuhito Miura, Shigeru Shoji, Takahiro Sakashita, Yasuo Matoba
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Patent number: 6228904Abstract: A nanocomposite structure comprising a nanostructured filler or carrier intimately mixed with a matrix, and methods of making such a structure. The nanostructured filler has a domain size sufficiently small to alter an electrical, magnetic, optical, electrochemical, chemical, thermal, biomedical, or tribological property of either filler or composite by at least 20%.Type: GrantFiled: May 22, 1998Date of Patent: May 8, 2001Assignee: Nanomaterials Research CorporationInventors: Tapesh Yadav, Clayton Kostelecky, Evan Franke, Bijan Miremadi, Ming Au
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Patent number: 6214917Abstract: The present invention relates to laser-markable plastics, in particular thermoplastic polyurethanes, which are distinguished by the fact that they contain pigments having a coating of doped tin dioxide.Type: GrantFiled: December 15, 1999Date of Patent: April 10, 2001Assignees: Merck Patent GmbH, BASF AkteingesellschaftInventors: Rainer Linzmeier, Burkhard Krietsch, Frank Prissok
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Patent number: 6211285Abstract: A polyisocyanate-based polymer having dispersed therein a metal salt, obtained by reacting an organic polyisocyanate with an aqueous composition of a metal salt. The polymer comprises the metal salt in an amount of from at least 10 weight percent based on total weight of the dry salt with the weight of the polyisocyanate-based polymer including salt therein. The polymer on calcination provides a metal-containing powder having an average particle size of 1 micrometer or less. Such metal-containing powders are of value in the preparation of industrial catalysts, ceramics, electronic components, or as fillers in plastics, paints, or cosmetics.Type: GrantFiled: July 30, 1999Date of Patent: April 3, 2001Assignee: The Dow Chemical CompanyInventors: Henri J. M. Grünbauer, Jacobus A. F. Broos, Kevin Pickin
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Patent number: 6194484Abstract: The invention relates to a coating material comprising a binding agent with high transparency in the thermal infrared range; first, plate-shaped particles, which reflect in the wavelength range of thermal infrared, and/or first spherical particles which backscatter in the wavelength range of thermal infrared; and/or second spherical particles which, in the dry state, have and/or form a hollow space, and consist of a material which is transparent in the thermal infrared range; second particles which reflect and/or backscatter in the wavelength range of visible light from 0.35-0.7 &mgr;m, and are transparent in the wavelength range of thermal infrared, and/or polymer pigments which are transparent in the thermal infrared range and which, in the dry state, have and/or form a hollow space,; third spherical particles which are electrically conductive and hare a low absorption in the thermal infrared range; other admixtures known per se, that are usually used for coating.Type: GrantFiled: June 4, 1999Date of Patent: February 27, 2001Inventor: Gerd Hugo
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Patent number: 6160044Abstract: The present invention provides a composition comprising a polymer or a compound having at least one 5-membered ring dithiocarbonate group represented by general formula (I): ##STR1## (wherein R.sup.1, R.sup.2, and R.sup.3 are the same or different and each of which represents hydrogen or lower alkyl), a nucleophile, and a metal compound.Type: GrantFiled: September 30, 1999Date of Patent: December 12, 2000Assignee: Kyowa Yuka Co., Ltd.Inventors: Shinichiro Jimbo, Shoshiro Matsushita, Ikuo Shimizu, Iwao Hotta, Masanori Ikuta, Izumi Itani
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Patent number: 6150456Abstract: A flexible, high dielectric constant polyimide film composed of either a single layer of an adhesive thermoplastic polyimide film or a multilayer polyimide film having adhesive thermoplastic polyimide film layers bonded to one or both sides of the film and having dispersed in at least one of the polyimide layers from 4 to 85 weight % of a ferroelectric ceramic filler, such as barium titante or polyimide coated barium titanate, and having a dielectric constant of from 4 to 60. The high dielectric constant polyimide film can be used in electronic circuitry and electronic components such as multilayer printed circuits, flexible circuits, semiconductor packaging and buried film capacitors.Type: GrantFiled: May 14, 1999Date of Patent: November 21, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Yueh-Ling Lee, Gary Min
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Patent number: 6150455Abstract: A thermostable polymer electrolyte gel containing an acrylonitrile polymer, an electrolyte and a solvent, the acrylonitrile polymer having an acrylonitrile content of from 89 wt % to 98 wt % and meeting the following relationship:1,040,000-(A.times.10,000).ltoreq.B.ltoreq.1,490,000-(A.times.10,000)where A is the acrylonitrile content in wt % and B is the weight average molecular weight of the acrylonitrile polymer, the polymer electrolyte gel having an ion conductivity of 10.sup.-3 S/cm or higher at 20.degree. C., exhibiting the "retention of shape" in a thermostability test, and containing the acrylonitrile polymer in a proportion of from 3 wt % to 9 wt %. The thermostable polymer electrolyte gel can be produced by dissolving an acrylonitrile polymer and an electrolyte in a solvent to prepare a solution of the polymer, and cooling the polymer solution to a temperature of 0.degree. C. or lower.Type: GrantFiled: November 4, 1997Date of Patent: November 21, 2000Assignees: Toyo Boseki Kabushiki Kaisha, Japan Exlan Company, Ltd.Inventors: Hiroyuki Takamiya, Ryosuke Nishida, Tatsuaki Sumitani
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Patent number: 6107386Abstract: A friction material comprising a filler, a binder, and a lubricant, wherein a part or the whole of the filler is constituted by molybdenum trioxide. Not only is the friction material improved in anti-cracking property and anti-fading property under high-temperature and high-load conditions, but the friction material can be prevented from deterioration due to ashing.Type: GrantFiled: February 21, 1995Date of Patent: August 22, 2000Assignee: Akebono Brake Industry Co., Ltd.Inventors: Osamu Nakajima, Takashi Kudo
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Patent number: 6036764Abstract: The present invention relates to a yellow pigment blend containing a) a yellow nickel titanate pigment, b) a yellow bismuth vanadate, and c) a yellow isoindolinone pigment, wherein a hardened pigmented article resulting from the blend is characterized according to the CIE tristimulus values system by having a value for Y of at least about 36, a value for x between 0.48 and 0.51 and a value for y between 0.44 and 0.47. The yellow pigment blend has very good heat resistance for hot melt application and very good lightfastness for long term durability.Type: GrantFiled: June 11, 1998Date of Patent: March 14, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Kim Diane Gooding, James Martin Delaney
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Patent number: 6017987Abstract: A novel fire-retardant polymer composition is provided which comprises 100 parts by weight of a polymer such as polyolefins and polystyrenes, 1-30 parts by weight of an oxide or a complex oxide of metals such as antimony, boron, and molybdenum, and 1-30 parts by weight of heat-expandable graphite. The fire-retardant polymer composition emits less amounts of smoke and corrosive gas on burning with the characteristics of the polymer material kept unimpaired.Type: GrantFiled: February 2, 1998Date of Patent: January 25, 2000Assignee: Tosoh CorporationInventors: Fumio Okisaki, Akinori Hamada, Shunichi Endo, Genichiro Ochiai
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Patent number: 6005024Abstract: The present invention pertains to novel durable, tough, transparent, luminescent overlay compositions, useful for highlighting and/or illuminating and preserving surfaces and markings thereupon, such as roadways/highways, pedestrian passageways, airport runways, traffic control surface markings on travelways such as those listed above, traffic control devices/signs, structures, and articles. The clear compositions contain a moisture sensitive luminescent substance (for example, a phosphorescent substance having increased brightness and longer lasting afterglow) and an epoxy resin which imparts moisture stability to the luminescent substance, and durability and longer life to the underlying markings, surface area, structure or article.Type: GrantFiled: January 6, 1998Date of Patent: December 21, 1999Inventors: Irving Anders, Bruce Anders
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Patent number: 5998506Abstract: The invention provides novel compositions and golf balls formed from those compositions. The compositions generally include a cured blend of an elastomer, a peroxide polymerization agent, a co-agent, and an unsaturated polycarboxylic acid. More particularly, the cured composition includes a cured blend of cis 1,4 polybutadiene, dicumyl peroxide, zinc diacrylate, and fumaric acid. One piece golf balls formed of these compositions have improved durability.Type: GrantFiled: September 12, 1997Date of Patent: December 7, 1999Assignee: Spalding Sports Worldwide, Inc.Inventor: Robert Dennis Nesbitt
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Patent number: 5981657Abstract: The present invention provides a thermally resistant resin composition containing PS and PPO, wherein at least one of PS and PPO has an acid group and the acid group is neutralized with a basic metal compound containing a metal element of the group 2B, 3B, 4B or 5B of the periodic table; thermally resistant PS and PPO each with an acid group which is also neutralized in the same manner as described above; and a method for miscible preparation of PS and PPO, wherein at least one of PS and PPO has an acid group and the acid group is neutralized similarly.Type: GrantFiled: August 20, 1996Date of Patent: November 9, 1999Assignee: Sony CorporationInventors: Yasuhito Inagaki, Tsutomu Noguchi, Hidemi Tomita
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Patent number: 5977277Abstract: The novel acrylic ester, allyl ether and allyl carbonate of the present invention are characterized by having the structures represented by the following general formulae (I) to (IV): The above acrylic ester, allyl ether and allyl carbonate are used as a starting monomer which forms a polymer matrix for use in a polymeric solid electrolyte. The novel polymer of the present invention comprises structural units derived from at least one compound selected from a group of the compounds represented by the above general formulae (I) to (IV). The polymeric solid electrolyte comprising the above novel polymer as a polymer matrix exhibits high ionic conductivity and is chemically stable.Type: GrantFiled: April 25, 1997Date of Patent: November 2, 1999Assignee: Mitsui Petrochemical Industries, LtdInventors: Keiichi Yokoyama, Takako Sasano, Akio Hiwara, Masahiro Toriida, Satoko Mita, Masayoshi Watanabe
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Patent number: 5976238Abstract: Pigment powder mixtures, consisting of0.999-0.5 part of C.I. Pigment Yellow 184, and0.001-0.5 part of an organic pigment selected from the group consisting of C.I. Pigment Orange 13, C.I. Pigment Orange 34, C.I. Pigment Orange 36, C.I. Pigment Orange 73, C.I. Pigment Red 170, C.I. Pigment Red 254, C.I. Pigment Red 255 and C.I. Pigment Red 264,or of0.99-0.5 part of C.I. Pigment Yellow 184, and0.01-0.5 part of an organic pigment selected from the group consisting of C.I. Pigment Yellow 83, C.I. Pigment Yellow 110 and C.I. Pigment Yellow 139.These pigment powder mixtures are distinguished, in particular in paints, by very high chroma.Type: GrantFiled: June 16, 1997Date of Patent: November 2, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Leonardus Johannes Hubertus Erkens, Gregor Schmitt, Hendrikus Maria Anna Hamers, Johannes Maria Martinus Luijten, Jozef Gertruda Emanuel Mains
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Patent number: 5965269Abstract: An adhesive comprising (1) 100 parts by weight of a combination of an epoxy resin having a weight average molecular weight of less than 5,000 and a curing agent, (2) 10 to 40 parts by weight of a high-molecular weight component being compatible with the epoxy resin and having a weight average molecular weight of 30,000 or above, (3) 20 to 100 parts by weight of a high-molecular weight component being incompatible with the epoxy resin and having a weight average molecular weight of 30,000 or above, and (4) 0.1 to 5 parts by weight of a cure accelerator. The adhesive is excellent not only in moisture resistance, heat resistance, adhesive strength at high temperature, heat dissipation, reliability of insulation, crack resistance and flexibility but also in circuit filling and tight adhesion, and exhibits suitable flow properties.Type: GrantFiled: October 3, 1997Date of Patent: October 12, 1999Assignee: Hitachi Chemical Company, Ltd.Inventors: Teiichi Inada, Kazunori Yamamoto, Yasushi Shimada, Yasushi Kumashiro
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Patent number: 5962122Abstract: Polymeric compositions having a high dielectric constant are made from a thermotropic liquid crystalline and a ceramic having a dielectric constant which is greater than about 50 at a frequency of 1.0 GHz. The compositions have a dielectric constant of at least about 4, and preferably at least about 6. Preferred compositions also have a low loss tangent.Type: GrantFiled: November 28, 1995Date of Patent: October 5, 1999Assignee: Hoechst Celanese CorporationInventors: Lak M. Walpita, William M. Pleban, Helmut Eckhardt
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Patent number: 5955526Abstract: An antistatic additive including a hexahalogenated ionic compound, and an antistatic additive composition for organic polymer compositions including an antistatically-effective amount of the hexahalogenated ionic compound, a solvent for the hexahalogenated ionic compound, and a diluent compatible with the hexahalogenated ionic compound, the solvent and the organic polymer composition. The hexahalogenated phosphate compound is preferably either potassium hexafluorophosphate, sodium hexafluorophosphate, and ammonium hexafluorophosphate. Organic polymer compositions containing the additive also are disclosed, as are methods of manufacturing both the additive and the polymer compositions.Type: GrantFiled: October 10, 1997Date of Patent: September 21, 1999Assignees: Cellular Technology International, Inc., Chemfoam International, Inc.Inventor: Dennis R. Spicher
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Patent number: 5952404Abstract: An aqueous gloss emulsion paint comprises a dispersion of structured composite particles, said structured particles comprising an association of particles of inorganic pigment and polymeric particles. The polymeric particles are formed from a polymer or copolymer having a minimum film forming temperature not greater than 50.degree. C. The component particles of the composite particles are held in association as a result of surface charges on the particles said surface charges on the polymeric particles being of opposite sign to the surface charge on the particles of inorganic pigment. The ratio of polymeric particles to particles of inorganic pigment in the composite particles is from 0.5:1 to 6:1 by volume.Type: GrantFiled: December 19, 1995Date of Patent: September 14, 1999Assignee: Tioxide Group Services LimitedInventors: Leslie Ainsley Simpson, Keith Robson, Steven Hugh Ashdown, Lisa Blakey
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Patent number: 5916944Abstract: Disclosed is a method of forming tamper-proof coatings on electronic devices. The method comprises applying a coating of a silica precursor resin and a filler onto the electronic device, wherein the filler is one which reacts in an oxidizing atmosphere to liberate enough heat to damage the electronic device. The coated electronic device is then heated at a temperature sufficient to convert the silica precursor resin to a silica containing ceramic matrix.Type: GrantFiled: September 29, 1997Date of Patent: June 29, 1999Assignee: Dow Corning CorporationInventors: Robert Charles Camilletti, Loren Andrew Haluska, Keith Winton Michael
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Patent number: 5908884Abstract: Tungsten powder which is a material of high radiation absorptivity is dispersed into unvulcanized fluoro rubber in advance so that the mixture is vulcanized and molded. As the powder of material of high radiation absorptivity, powder having an F.s.s.s. particle size not larger than 50 .mu.m is used. Further, in the case where a mixture of powder having an F.s.s.s. particle size in a range of from 5 .mu.m to 50 .mu.m, and powder having an F.s.s.s. particle size in a range of from 0.5 .mu.m, to 5 .mu.m, is used as the powder of material of high radiation absorptivity, the powder of material of high radiation absorptivity has good tensile strength, good extensibility and more excellent radiation shielding ability, when the weight of the powder having a particle size in a range of from 4 .mu.m to 100 .mu.m is in a range of from 60% by weight to 95% by weight, and the weight of the powder having a particle size smaller than 4 .mu.m is in a range of from 5% by weight to 40% by weight.Type: GrantFiled: September 16, 1997Date of Patent: June 1, 1999Assignee: Sumitomo Electric Industries, Ltd.Inventors: Toshio Kawamura, Toshihisa Adachi, Mitsunori Kobayashi