Next To A Boron Containing Layer Patents (Class 428/427)
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Patent number: 6458734Abstract: A dielectric ceramic compact is provided which can be obtained by sintering at a low temperature of 1000° C. or less, can be obtained by co-sintering a dielectric ceramic composition with a metal having superior electrical conductivity, such as Ag, and has a high relative dielectric constant, a high Q and a small temperature coefficient of dielectric properties. The dielectric ceramic composition combines an xBaO-yTiO2-zReO3/2 ceramic composition and a glass composition; wherein 8≦x≦18, 52.5≦y≦65, 20≦z≦40, in which x, y, and z represent mole percent, x+y+z=100 and Re indicates a rare earth element, and the glass composition comprises about 10 to 25 wt % of SiO2, about 10 to 40 wt % of B2O3, about 25 to 55 wt % of MgO, 0 to about 20 wt % of ZnO, 0 to about 15 wt % of Al2O3, about 0.5 to 10 wt % of Li2O and 0 to about 10 wt % of RO in which R is at least one selected from the group consisting of Ba, Sr and Ca.Type: GrantFiled: July 20, 2001Date of Patent: October 1, 2002Assignee: Murata Manufacturing Co. Ltd.Inventors: Yasutaka Sugimoto, Osamu Chikagawa, Naoya Mori
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Patent number: 6428616Abstract: An aqueous, curable coating composition comprising a mixture of: (a) at least one water soluble alkali metal silicate; and (b) an effective amount of a water-soluble crosslinking agent comprising an alkali metal aluminophosphate, or an alkali metal aluminoborophosphate, or an ammonia aluminophosphate, or an ammonia aluminoborophosphate, or an alkali metal ammonia aluminophosphate, an alkali metal ammonia aluminoborophosphate, or a mixture of two or more of the foregoing phosphates. Preferably, the coating composition will not contain any visually discernable precipitate. The coating composition may be applied to a substrate such as a glass, a ceramic, concrete or a metal and thereafter cured by air drying or by heating to a temperature of up to about 240° C. (or higher, if desired).Type: GrantFiled: July 19, 2000Date of Patent: August 6, 2002Assignee: Neely Industries, Inc.Inventor: James E. Neely, Jr.
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Patent number: 6420286Abstract: A glass-ceramic suitable for use as a light filter includes, as a predominant crystal phase, lithium disilicate (Li2O.2SiO2) or a combination of lithium disilicate and at least one crystal phase selected from the group consisting of &agr;-quartz (&agr;-SiO2), &agr;-quartz solid solution (&agr;-SiO2 solid solution), &agr;-cristobalite (&agr;-SiO2) and &agr;-cristobalite solid solution (&agr;-SiO2 solid solution). This substrate has Young's modulus (GPa)/specific gravity of 37 or over, surface roughness Ra (arithmetic mean roughness) of 5.0 Å or below, a coefficient of thermal expansion within a temperature range from −50° C. to +70° C. which ranges from +65×10−7/° C. to +130×10−7/° C. and bending strength of 400 MPa or over.Type: GrantFiled: June 14, 2000Date of Patent: July 16, 2002Assignee: Kabushiki Kaisha OharaInventors: Naoyuki Goto, Junko Ishioka, Yasuyuki Kawashima
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Publication number: 20020086926Abstract: A polyvinyl butyral composition is disclosed which is comprised of polyvinyl butyral resin containing an IR absorbing effective amount of lanthanum hexaboride or a mixture of lanthanum hexaboride and at least one of tin oxide and antimony tin oxide. Also disclosed are a sheet of the IR absorbing polyvinyl butyral and a glass laminate having the IR absorbing polyvinyl butyral sheet disposed between two sheets of glass.Type: ApplicationFiled: November 14, 2001Publication date: July 4, 2002Inventor: W. Keith Fisher
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Patent number: 6399229Abstract: The present invention is directed to a light-transmitting color film comprising oxides which have high chemical resistance and excellent light-absorption effect, making them available in a wide color range; a method for producing the same; and a coating solution used for forming the color film. In the light-transmitting color film comprising an oxide of an element which serves as a network former and oxides of transition metal elements serving as coloring components, the element serving as a network former is at least one selected from Si, Al, and B, and the transition metal elements comprise Cu, Mn, and Ni; and the two types of oxides form a complex oxide.Type: GrantFiled: June 15, 1999Date of Patent: June 4, 2002Assignee: Nippon Sheet Glass Co., LTDInventors: Hiromitsu Takeda, Kennichi Fujita, Taro Miyauchi, Toshifumi Tsujino, Tatsuya Noguchi, Hideki Okamoto, Takashi Muromachi
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Patent number: 6387513Abstract: The present invention relates to a more easily recyclable enamel composition which includes at least one glass frit and includes, as pigment(s), at least one or more manganese compounds, this composition furthermore having a melting temperature below 750° C. The invention also relates to an enamelling process using this composition, as well as to the enamelled products obtained.Type: GrantFiled: August 11, 1999Date of Patent: May 14, 2002Assignee: Saint Gobain VitrageInventors: André Beyrle, Aline DeJean, Daniel Dages, Anne-Valentine Veret-Lemarinier
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Publication number: 20020034643Abstract: The invention relates to a surface layer which comprises a plurality of layers, of which one layer is a ceramic wear-resistant layer and another layer is a transition layer to a metallic substrate element. The transition layer comprises intermetallic phases and is formed by a reaction from the materials of the substrate element and of the ceramic layer.Type: ApplicationFiled: July 26, 2001Publication date: March 21, 2002Inventors: Tilman Haug, Michael Scheydecker, Oliver Storz, Karl-Ludwig Weisskopf
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Optical member with layer having a coating geometry and composition that enhance cleaning properties
Patent number: 6350397Abstract: An improved transparent optical member, preferably a glass sheet, comprising a nanostructure layer with an enhanced geometry and a balance of chemical (hydrophobic and hydrophilic) characteristics can be formed on a surface. The geometry and chemistry of the layer combine to obtain improved washability. The layer can be manufactured by forming a layer comprising a silicon compound coating, including a silicon oxide coating, a silicon carbide coating, a silicon nitride coating or mixtures thereof. The coating can have a having a thickness of about 1 to 100 nm (10−9 meter). The layer has a preferred roughens from a random or ordered array of structure. The layer can be doped with di tri or polyvalent metal compounds. Such coatings have been found to have increased washability and such coatings have been found to preferentially bind to aqueous solutions applied to the glass.Type: GrantFiled: March 2, 2000Date of Patent: February 26, 2002Assignee: Aspen Research CorporationInventors: Kurt E. Heikkila, James E. Fairman, Russell J. Pylkki, Michael S. Arney, Douglas E. Wilken -
Publication number: 20010056147Abstract: This invention is directed to an adhesive composition comprising:Type: ApplicationFiled: July 20, 2001Publication date: December 27, 2001Inventor: Melvin A. Neiss
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Patent number: 6306511Abstract: There is disclosed a hybrid laminate comprising: a substrate layer containing a compact of first powder; and a functional material layer being in contact with the substrate layer and containing a compact of second powder; wherein the compact of the first powder comprises a glass material; the compact of the second powder comprises a ceramic material having at least one specific electric property selected from dielectricity, magnetism, resistivity and insulation; at least a part of the first powder is in a sintered state; and the second powder is in an unsintered state and is bonded together by diffusion or a flow of a part of the material of the substrate layer into the functional material layer.Type: GrantFiled: July 21, 2000Date of Patent: October 23, 2001Assignee: Murata Manufacturing Co., Ltd.Inventors: Shuya Nakao, Hirokazu Kameda, Shigeyuki Kuroda, Kenji Tanaka, Masaru Kojima
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Publication number: 20010025001Abstract: A composite material has a quartz glass phase and a complex compound phase compounded with the quartz glass phase, which is made of one or more compounds selected from a group of silicon carbide, silicon nitride, silicon, titanium nitride and titanium carbide, as a main ingredient. The composite material can be used instead of quartz glass, and can prevent the generations of microcrack, tipping and particles after the mechanical working.Type: ApplicationFiled: February 20, 2001Publication date: September 27, 2001Applicant: NGK Insulators, Ltd.Inventors: Toshio Oda, Hiromichi Kobayashi, Tsuneaki Ohashi, Shinji Kawasaki
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Patent number: 6280863Abstract: An apatite glass ceramic is described which is characterized by good chemical stability, a low expansion coefficient and high translucence, and is particularly suitable, by itself or together with glasses or other glass ceramics, as a veneering material for ceramic dental restorations.Type: GrantFiled: June 12, 1998Date of Patent: August 28, 2001Assignee: Ivoclar AGInventors: Martin Frank, Helga Drescher, Wolfram Höland, Volker Rheinberger
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Patent number: 6280849Abstract: Boric acid is used as a surface-protection coating for protecting a desired surface area of a glass article from weathering, contamination by dirt, dust, moisture and others, and streaks and/or cracks due to collision and friction with other objects. The boric acid coating is readily washed out by water upon actual use of the glass article.Type: GrantFiled: March 2, 1999Date of Patent: August 28, 2001Assignee: Nippon Electric Glass Co. Ltd.Inventor: Yoshiharu Miwa
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Patent number: 6255239Abstract: Lead-free alkali metal-free bismuth-borosilicate glass compositions are disclosed. These compositions are useful in preparing glass frits which are employed in glass enamel compositions which, in turn, are used to prepare glass enamel pastes. The glass enamel pastes can be coated on non-porous substrates and fused to form decorative and functional coatings on the substrates.Type: GrantFiled: December 4, 1998Date of Patent: July 3, 2001Assignee: Cerdec CorporationInventor: George E. Sakoske
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Patent number: 6228457Abstract: There is disclosed an optical data storage medium in which the weather resistance of the semitransparent reflective film is improved and the adhesive property between the semitransparent reflective film and a substrate is enhanced, and which has a higher reliability. In an optical data storage medium (6), on the side on which a reproduction light (8) is incident, a first information layer (9) is located while on the side opposite to the side on which the reproduction light (8) is incident, a second information layer (10) is located. A semitransparent reflective film (3) of first information layer (9) is AgPdCu alloy thin films containing 0.5 to 3.0 weight % Pd and 0.1 to 3.0 weight % Cu or AgPdTi alloy thin films containing 0.5 to 3.0 weight % Pd and 0.1 to 3.0 weight % Ti. At the wavelength 650 nm, the optimum film thickness of AgPdCu alloy thin film is 5 to 18 nm and the optimum film thickness of AgPdTi alloy thin film is 10 to 25 nm.Type: GrantFiled: September 20, 1999Date of Patent: May 8, 2001Assignees: Furuyametals Co. Ltd., Sony Corporation, Sony Disc Technology Inc.Inventors: Takashi Ueno, Keiichiro Jinushi, Katsuhisa Aratani, Masaaki Iwasaki, Ryohei Miyake
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Patent number: 6214471Abstract: A family of aluminoborate glasses that are compatible with aluminum at elevated temperatures, and an article comprising such a glass with either an aluminum coating, or with aluminum particles dispersed within the glass, whereby the glass may be rendered polarizing. The base glass consists essentially of, 15-85% B2O3, 5-45% Al2O3 and 10-75% Li2O+RO, where RO represents the alkaline earth metal oxides MgO, CaO, SrO and BaO, and is free of oxides reacting with aluminum at elevated temperatures.Type: GrantFiled: November 3, 1999Date of Patent: April 10, 2001Assignee: Corning IncorporatedInventors: Douglas M. Beall, George H. Beall
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Patent number: 6210805Abstract: A glass plate provided with a conductive layer, which comprises a glass plate, a conductive layer baked to the glass plate and containing a conductive material as the main component, and a glass exudate coating layer formed to substantially cover the conductive layer and containing low melting point glass as the main component.Type: GrantFiled: January 26, 1999Date of Patent: April 3, 2001Assignee: Asahi Glass Company Ltd.Inventor: Kazuo Sunahara
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Patent number: 6187429Abstract: For obtaining firmly adhering decorative layers of ceramic colors applied to glass or glass ceramic substrates, prior to stoving, optically inactive inorganic substances, e.g., mica, which are chemically inert with respect to the base enamel and the pigments are added to the base enamel together with the pigments in fine-particle form, e.g., 20-40 &mgr;m, in a quantity of 1-20 wt. %.Type: GrantFiled: November 28, 1994Date of Patent: February 13, 2001Assignee: Schott GlasswerkeInventors: Waldemar Weinberg, Herwig Scheidler
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Patent number: 6184166Abstract: This invention relates to lead-free silicate glasses that find use in producing fine crystal glassware and in laminated ware applications. The glasses consist essentially, in weight percent, of: SiO2 52-66 ZnO 15-30 Al2O3 0-4 BaO 0-7 Li2O 0-4 MgO + CaO + SrO 0-4 Na2O 3-16 ZrO2 0-4 K2O 0-12 B2O3 0-4.Type: GrantFiled: July 16, 1999Date of Patent: February 6, 2001Assignee: Corning IncorporatedInventors: George B. Hares, Jeffrey T. Kohli, James E. Webb
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Patent number: 6174608Abstract: The present invention provides a ceramic tile and a glaze composition for use in forming the tile. The glaze composition comprises a glass component, an expansion modifier and a spodumene crystallization promoter. The spodumene crystallization promoter comprises a material that promotes the formation of beta spodumene during the firing of the glaze composition.Type: GrantFiled: November 12, 1998Date of Patent: January 16, 2001Assignee: Ferro (Italia) SRLInventors: Paolo Bertocchi, Emanuela Neri, Bruno Burzacchini, Marzia Barattini
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Patent number: 6150029Abstract: A method of forming a film having enhanced reflow characteristics at low thermal budget is disclosed, in which a surface layer of material is formed above a base layer of material, the surface layer having a lower melting point than the base layer. In this way, a composite film having two layers is created. After reflow, the surface layer can be removed using conventional methods.Type: GrantFiled: September 5, 1997Date of Patent: November 21, 2000Assignee: Micron Technology, Inc.Inventors: Gurtej Sandhu, Randhir P. S. Thakur
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Patent number: 6124038Abstract: The invention relates to a strong UV absorbing glass consisting essentially of, expressed in cation percent, 15-30% SiO.sub.2, 50-60% B.sub.2 O.sub.3, 2-5% Al.sub.2 O.sub.3, 0-6% Li.sub.2 O, 0-3.0% Na.sub.2 O, 14-20% K.sub.2 O, 0.5-1.0% CuO, 0.4-0.7% SnO.sub.2, 0.5-1.5% Cl, and 0.7-1.5% Br. An essentially haze-free version of the glass is disclosed. A UV absorbing coating material made by suspending ground particles of the inventive glass in a suitable matrix is also disclosed.Type: GrantFiled: August 7, 1998Date of Patent: September 26, 2000Assignee: Corning IncorporatedInventor: Roger J. Araujo
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Patent number: 6071622Abstract: An article with a corrosion-resistant diffusion barrier is provided to resist the attack of corrosion agents, during service at high temperature (>600.degree. C.). More specifically, a diffusion barrier containing a stabilized two-phase glass is provided. The stabilized two-phase glass comprises glass-forming oxides, other oxides with low cation coordination numbers and stabilizing agents wherein the glass-forming oxides block ionic transport by virtue of their network formation on the atomic scale and the stabilizing agents improve the stability of the diffusion barrier and compatibility with the substrate. The diffusion barrier covers some portion of the substrate that is optionally augmented by a base layer or a sealant layer. Being impervious and having low-solubility in corrosive environments, the diffusion barrier stops corrosive agents from reaching the substrate.Type: GrantFiled: October 30, 1998Date of Patent: June 6, 2000Inventors: Durga Prasad Beesabathina, Prasad Rao Kalvala, Karl Erik Wiedemann
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Patent number: 6057211Abstract: In a method for manufacturing an integrated circuit arrangement, trenches that define active zones are formed in a substrate. A first insulating layer that fills the narrow trenches is conformally deposited and is structured with a mask and anisotropic etching such that spacers arise at sidewalls of the wide trenches and supporting locations arise in a region of the wide trenches. The surface of the active zones is uncovered by forming a second insulating layer with an essentially planar surface and by a planarizing layer erosion on the basis of chemical-mechanical polishing or conventional dry etching.Type: GrantFiled: December 15, 1997Date of Patent: May 2, 2000Assignee: Siemens AktiengesellschaftInventor: Udo Schwalke
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Patent number: 6030707Abstract: The present invention aims to solve problems involved in the formation of a conductive or insulating layer in a pattern form by photolithography, i.e., an environmental problem associated with handling of a solvent and a problem associated with wastewater treatment in the development with an aqueous alkaline solution. A method for forming a conductive layer (an anode bus 3) or an insulating layer (a barrier 1) on a glass substrate by photolithography using a photosensitive slurry solution prepared by mixing a low-melting glass powder as a binder and a conductive or insulating powder into a PVA-based, water-soluble photosensitive solution, wherein the content of B.sub.2 O.sub.3 component in the whole low-melting glass powder is closely regulated to not more than 6% by weight. This enables coating without gelation of PVA.Type: GrantFiled: December 16, 1998Date of Patent: February 29, 2000Assignees: Nippon Hoso Kyokai, Dai Nippon Printing Co., Ltd.Inventors: Toshihiro Katoh, Takao Kuriyama, Tatsuya Takei, Takashi Kawai, Hiroshi Murakami, Eiji Munemoto, Norio Ohta, Koji Shimada
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Patent number: 6001442Abstract: A roll towel for use in the drying of hands in the lavatory setting is provided. The roll towel includes at least two segments of textile material which include at least 60 percent polyester fiber. The two segments of textile material are spliced together by an ultrasonically formed seam. The seam is made up of a series of bonding points offset from one another by nonbonded segments.Type: GrantFiled: November 8, 1996Date of Patent: December 14, 1999Assignee: Milliken & CompanyInventor: James Nelson Rockwell, Jr.
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Patent number: 5998314Abstract: Disclosed are a low-temperature sinterable ceramic composition comprising 100 parts by weight of an essential component composed of from about 60 to 85% by weight of cordierite and from about 15 to 40% by weight of glass, and not larger than about 25 parts by weight of TiO.sub.2, and a monolithic ceramic substrate comprising the composition. The composition can be sintered at relatively low temperatures, and the sintered substrate has a small thermal expansion coefficient and a small dielectric constant. The temperature-dependent variation in the electrostatic capacity of the substrate is small. Preferably, the glass component in the composition is composed of about 20 to 60% by weight of SiO.sub.2, about 30 to 50% by weight of B.sub.2 O.sub.3, about 5 to 30% by weight of MgO, 0 to about 15% by weight of Al.sub.2 O.sub.3, and about 1 to 5% by weight of R.sub.2 O in which R is an alkali metal.Type: GrantFiled: March 3, 1998Date of Patent: December 7, 1999Assignee: Murata Manufacturing Co., Ltd.Inventor: Yasutaka Sugimoto
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Patent number: 5972485Abstract: Disclosed herein is an electroconductive composition for a glass substrate and an anti-fog window glass for automobiles making use of the composition. The electroconductive composition of the present invention can be fired at low temperature, and forms a thick film electrode of excellent moisture resistance and acid resistance. The electroconductive composition is formed of an electroconductive powder, glass frit and an organic vehicle, wherein the glass frit comprises a homogeneous glass component and a silica component; the homogeneous glass component has a composition, with respect to the entirety of the glass frit (100 mol %), of 0-about 30 mol % B.sub.2 O.sub.3, about 10-30 mol % SiO.sub.2 and about 5-35 mol % Bi.sub.2 O.sub.3, and the silica component is about 35-85 mol % of the entirety of the glass frit (100 mol %).Type: GrantFiled: October 22, 1998Date of Patent: October 26, 1999Assignee: Murata Manufacturing Co., Ltd.Inventor: Tomoki Sanada
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Patent number: 5922444Abstract: A glaze composition suitable for a thin chip substrate, for example. The glaze composition makes a low-temperature glazing possible and is superior in the electrical and chemical stability. The glaze composition can prevent even a thin substrate from warping and can easily form an extensive smooth glaze layer without deteriorating a thin glaze face. The components of the composition are 20% to 50% by weight of boron oxide, 5% to 35% by weight of aluminum oxide, and 15% to 55% by weight of at least one alkaline-earth oxide selected from the group consisting of calcium oxide, strontium oxide, magnesium oxide and barium oxide.Type: GrantFiled: September 22, 1994Date of Patent: July 13, 1999Assignee: NGK Spark Plug Co., Ltd.Inventors: Masashi Tsuzuki, Masahiko Okuyama
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Patent number: 5900319Abstract: A ceramic enamel composition is described which contains a zinc-containing oxide frit, a zinc borate seed material, a pigment, and a vehicle. The zinc borate seed material is preferably crystalline in nature, and promotes crystal growth upon firing. A preferred crystalline zinc borate seed material is selected from the phases Zn.sub.3 B.sub.2 O.sub.6 and Zn(BO.sub.2).sub.2, and mixtures thereof. Upon firing and press-forming a glass substrate coated with the enamel, components of the enamel adhere to the substrate while reducing sticking of the coated region to the forming die. The ceramic enamel is particularly useful in providing a colored border around the periphery of automotive glass and is effective in improving appearance and reducing degradation of underlying adhesives by ultraviolet radiation.Type: GrantFiled: February 12, 1998Date of Patent: May 4, 1999Assignee: Cerdec CorporationInventor: George E. Sakoske
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Patent number: 5885713Abstract: Fire-resistant glass, produced by placing between two panes of glass a gel former containing a) an acid aluminum phosphate, b) a reaction product of boric acid with an alkanolamine and one or more alkali metal compounds, and heating the glass to convert the gel former to a gel.Type: GrantFiled: September 10, 1997Date of Patent: March 23, 1999Assignees: Bayer Aktiengesellschaft, Schott GlaswerkeInventors: Wulf von Bonin, Roland Leroux, Markus Steigenberger, Thomas Karschti, Markus Ring
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Patent number: 5871879Abstract: According to the present invention an element comprising a layer on a glass support characterised in that: (i) the thickness of said glass support is less than 1.2 mm, (ii) said glass support has a failure stress (under tensile stress) equal to or higher than 5.times.10.sup.7 Pa and (iii) the sides in the longitudinal direction have a rounded border with a radius in the order of magnitude of half of the thickness of the glass support.Type: GrantFiled: October 23, 1997Date of Patent: February 16, 1999Assignee: AGFA-Gevaert, N.V.Inventors: Bartholomeus Verlinden, Pascale Steenhoudt
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Patent number: 5866239Abstract: A top plate (3) of a low-expansion crystallized glass of deep color, with a first enamel coating coated on a heating portion (5, 7, 9, 11) of the plate and a second enamel coating coated on a non-heating portion (13) around and other than the heating portion. The first enamel coating consists essentially, by weight, of 40 to 98% glass content, 5 to 55% at least one of ZrSiO.sub.4 and ZrO.sub.2 crystals, and 0 to 54% coloring pigment. The second enamel coating consists essentially, by weight, of 30 to 94% glass content, 5 to 69% TiO.sub.2 crystals, 0 to 34% coloring pigment.Type: GrantFiled: February 28, 1997Date of Patent: February 2, 1999Assignee: Nippon Electric Glass Co., Ltd.Inventors: Narutoshi Shimatani, Akihiko Sakamoto, Kiyoshi Katagi
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Patent number: 5843853Abstract: The invention pertains to a new lead-free glass composition with improved properties, a glass frit of this composition and its use for the production of glass-enamel, particularly for architectural glass. The glass composition contains in mole %:______________________________________ Na.sub.2 O 10-15 K.sub.2 O 0.1-2 SiO.sub.2 40-50 B.sub.2 O.sub.3 8-12 TiO.sub.2 4-7 Al.sub.2 O.sub.3 0.1-3 ZnO 13-17 F 1-5 ______________________________________and less than 0.5 weight % each of the oxides of the series PbO, CdO, P.sub.2 O.sub.5, and alkaline earth metal oxides. Use of a dye preparation containing the glass frit at 600.degree. to 650.degree. C. results in bakeable glazed, crack-free, acid and base resistant enamel layers.Type: GrantFiled: August 4, 1997Date of Patent: December 1, 1998Assignee: Cerdec Aktiengesellschaft Keramische FarbenInventors: Oliver Heitmann, Gerhard Tunker
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Patent number: 5811191Abstract: An antireflectance coating is disclosed comprising a first graded layer wherein the composition is varied throughout the thickness of the layer such that the refractive index of the graded layer varies from a low refractive index approximately matching the refractive index of the substrate at the interface of the graded layer and the substrate to a higher refractive index at the surface of the graded layer opposite the interface with the substrate, and a second substantially homogeneous layer of a composition selected to have a refractive index which is approximately the square root of the product of the higher refractive index of the graded layer and the refractive index of the incident medium at the surface of the second layer opposite the interface of the second layer with the graded layer, having an optical thickness of approximately at least one quarter of a selected design wavelength.Type: GrantFiled: December 27, 1994Date of Patent: September 22, 1998Assignee: PPG Industries, Inc.Inventor: George A. Neuman
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Patent number: 5776613Abstract: In order to provide an enamel frit composition capable of preventing a hue of a low-expansion crystallized glass plate of a dark color from being seen through an enamel coating without increasing the thickness of the enamel coating and the mixing ratio of a coloring pigment as well as to provide an enamel-coated low-expansion crystallized glass plate using the above-mentioned composition, the enamel frit composition for a low-expansion crystallized glass essentially consists, by weight, of 30-94 wt % glass powder, 5-69 wt % TiO.sub.2 powder, and 0.05-34 wt % coloring pigment.Type: GrantFiled: October 31, 1996Date of Patent: July 7, 1998Assignee: Nippon Electric Glass Co. Ltd.Inventors: Narutoshi Shimatani, Kiyoshi Katagi, Akihiko Sakamoto
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Patent number: 5744242Abstract: A protective liner article for wet scrubbers and the like consists of a cellulated glass block of corrosion-resistant material, such as PENNGUARD.RTM. Block, a cellulated borosilicate glass, and a sheet of glassy, corrosion-resistant material which can be and preferably is corrosion-resistant glass such as 7740 Pyrex.RTM. bonded to a face of the block. The sheet is fused to the cellulated borosilicate glass block by applying radiant heat to an outer surface of the sheet while keeping the body of the block at a temperature below the degradation temperature of the block until the sheet bonds to the face of the block. Preferably, a finely-divided frit is applied to the surface to which the glass is bonded, filling interstices of the surface of the block, before the sheet is placed on the block.Type: GrantFiled: April 24, 1996Date of Patent: April 28, 1998Assignee: Imrie-Gielow, Inc.Inventor: Henry A. Mullen
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Patent number: 5736248Abstract: The high temperature coating for the protection of ceramic materials, in particular porous ones, from erosion and chemical and/or mechanical failure according to the invention comprises a barrier (primer) layer and an emissivity glaze (topcoat) layer, with the following weight compositions:barrier layer:silicon tetraboride (with over 96 weight % of SiB.sub.4): 0.1 to 10%;quartz glass: 90 to 99.9%;emissivity glaze layer:silicon tetraboride (with over 96 weight % of SiB.sub.4): 1.5 to 5.0%;high silica glass: 95 to 98.5%.Type: GrantFiled: April 24, 1996Date of Patent: April 7, 1998Assignees: Aerospatiale Societe Nationale Industrielle, VIAM - All Russian Institut of Aviation MaterialsInventors: Stanislav Serguevich Solntsev, Vladimir Mihailovich Tjurin, Natalia Vladimirovna Izaeva, Alexei Yurievich Bersenev, Galina Anatolievna Solovjeva
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Patent number: 5723220Abstract: For removing halo formation, which often occurs on glass-ceramic articles decorated with a ceramic color, a layer of SiO.sub.2 is applied to the glass-ceramic article after the glass-ceramic color has been burnt-in. The layer is preferably 40-200 nm thick. The layer can contain up to 66.5% by weight of oxides, which change the refractive index so that the layer is invisible, the layer being, for example, 85-93% by weight of SiO.sub.2 and 7-15% by weight of TiO.sub.2.Type: GrantFiled: August 29, 1995Date of Patent: March 3, 1998Assignee: Schott GlaswerkeInventors: Roland Leroux, Erich Rodek, Kurt Schaupert, Jurgen Thurk, Waldemar Weinberg
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Patent number: 5718979Abstract: A Cu-doped/Fe-doped low expansion glass ceramic composition comprising:______________________________________ Wt. % ______________________________________ SiO.sub.2 50-65 Al.sub.2 O.sub.3 18-27 P.sub.2 O.sub.5 0-10 Li.sub.2 O 2-6 Na.sub.2 O 0-2 K.sub.2 O 0-2 B.sub.2 O.sub.3 0-1 MgO 0-4 ZnO 0-5 CaO 0-4 BaO 0-5 TiO.sub.2 1-3 ZrO.sub.3 1-3 As.sub.2 O.sub.3 0-1.5 Sb.sub.2 O.sub.3 0-1.5 CuO 0-3 Fe.sub.2 O.sub.3 0-1 ______________________________________wherein the total amount of SiO.sub.2, Al.sub.2 O.sub.3 and P.sub.2 O.sub.5 is 80-89 wt. %, and said glass ceramic contains as a dopant 0.1-3 wt. % CuO, 0.1-1 wt. % Fe.sub.2 O.sub.3 or a combined CuO+Fe.sub.2 O.sub.3 amount of 0.1-4 wt. %. The glass ceramic composition is suitable for use as a cladding material for solid laser energy storage mediums as well as for use in beam attenuators for measuring laser energy level and beam blocks or beam dumps used for absorbing excess or unused laser energy.Type: GrantFiled: September 20, 1995Date of Patent: February 17, 1998Assignee: Schott Glass Technologies, Inc.Inventors: Alexander J. Marker, John H. Campbell
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Patent number: 5691254Abstract: In order to provide an enamel frit composition for a low-expansion crystallized glass, capable of producing an enamel coating excellent in abrasion resistance and acid resistance without occurrence of cracks by using glass powder which does not contain any harmful component such as PbO, and to provide an enamel-coated low-expansion crystallized glass plate using the enamel frit composition, the enamel frit composition for a low-expansion crystallized glass essentially consists 40-98 wt % glass powder, 1-55 wt % coloring pigment, and 0-54 wt % filler. The glass powder consists, by weight, of 55-72% SiO.sub.2, 4-8% Al.sub.2 O.sub.3, 14-22% B.sub.2 O.sub.3, 2-4% BaO, 5.1-15% Na.sub.2 O, 0-2% Li.sub.2 O, 0-2.8% K.sub.2 O, and 0-2% F.sub.2.Type: GrantFiled: November 26, 1996Date of Patent: November 25, 1997Inventors: Akihiko Sakamoto, Kiyoshi Katagi, Masayuki Ninomiya
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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: 5648172Abstract: This invention relates to a glass sheet having a low content of alkaline oxides and alkaline-earth oxides, in the composition of which the sum of the alkaline and alkaline-earth oxides is less than or equal to 15%, with a sodium oxide content less than or equal to 10%, the values being expressed in percentages by weight, at least one of the faces of which is constituted of a surface zone virtually devoid, notably, of alkaline ions.Type: GrantFiled: September 29, 1994Date of Patent: July 15, 1997Assignee: Saint-Gobain Vitrage InternationalInventors: Didier Jousse, Pablo Vilato, Catherine Geoffroy
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Patent number: 5631065Abstract: A durable energy-conserving window glass is produced with very low scattering of visible light. A typical structure consists of soda-lime glass coated successively with alumina, then fluorine-doped tin oxide and finally with bismuth silicate glass. The whole structure is heated so that the bismuth silicate glass softens and flows to form a smooth surface.Type: GrantFiled: April 8, 1991Date of Patent: May 20, 1997Inventor: Roy G. Gordon
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Patent number: 5616417Abstract: Lead-free glass frits having the following composition in weight percent:______________________________________ ZnO 25-35 SiO.sub.2 10-17 ZrO.sub.2 0-2 Al.sub.2 O.sub.3 0-4 Na.sub.2 O 8-12 B.sub.2 O.sub.3 20-30 Bi.sub.2 O.sub.3 6-25 F.sup.-1 1-5 ______________________________________are useful in the formulation of ceramic enamel compositions.Type: GrantFiled: June 12, 1996Date of Patent: April 1, 1997Assignee: Cerdec CorporationInventor: Joseph W. Ryan
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Patent number: 5607773Abstract: A method of forming a planar dielectric layer over an interconnect pattern which requires fewer processing steps and has a lower dielectric constant than is obtained in the prior art. The method comprises providing a substrate having an electrical interconnect pattern thereon, forming a first layer of dielectric over the interconnect pattern, preferably by plasma generated TEOS oxide, forming a porous second layer of silicon-containing dielectric with low dielectric constant different from the first layer over the first dielectric layer from an inorganic silicon-containing composition, preferably hydrogen silsesquioxane and forming a third layer of dielectric different from the second layer over the second dielectric layer, preferably by a plasma generated TEOS oxide.Type: GrantFiled: December 20, 1994Date of Patent: March 4, 1997Assignee: Texas Instruments IncorporatedInventors: Byron T. Ahlburn, Thomas R. Seha
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Patent number: 5597644Abstract: A ceramic circuit board comprises a ceramic substrate having a glaze film formed thereon, the glaze film being overlaid with a functional thin film such as a ferromagnetic film serving as a magnetic sensor, for example. The ceramic substrate is made of a low-firing ceramic material such as a glass ceramic material which can be sintered at a temperature below 1000.degree. C. by co-firing with the glaze film. Preferably, the ceramic substrate has a recess on its top surface, and the glaze film is embedded in the recess such that the difference in level between the ceramic substrate and the glaze film is 20 .mu.m or less.Type: GrantFiled: November 9, 1995Date of Patent: January 28, 1997Assignee: Sumitomo Metal Ceramics, Inc.Inventors: Hideaki Araki, Junzo Fukuta, Masashi Fukaya
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Patent number: 5580661Abstract: Fireproofing glasses containing gels free from organic gel formers are characterized in that they have been prepared with gel formers which containa) acidic aluminium phosphates andb) reaction products of boric acid with alkanolamines,a) and b) being present in a weight ratio of 100:55 to 100:0.5, calculated as solids.Type: GrantFiled: October 26, 1993Date of Patent: December 3, 1996Assignees: Schott Glaswerke, Bayer AktiengesellschaftInventors: Wulf von Bonin, Roland Leroux, Thomas M. Karschti, Markus Steigenberger
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Patent number: 5569538Abstract: In one form of the invention, a method is disclosed for fabricating a semiconductor-on-insulator structure comprising the steps of: forming an insulator layer 22; forming a layer 24 comprising boron (B) on the insulator layer 22; and forming a semiconductor layer 26 on the layer 24 comprising B.Type: GrantFiled: October 14, 1994Date of Patent: October 29, 1996Assignee: Texas Instruments IncorporatedInventor: Chih-Chen Cho
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Patent number: 5552215Abstract: A fiber reinforced glass matrix composite has a glass matrix or glass ceramic and a plurality of primary and secondary reinforcing fibers dispersed in the matrix. The primary fibers may be continuous or discontinuous. The secondary fibers are discontinuous. The secondary reinforcing fibers which are shorter than the primary fibers fill regions of the matrix not filled with the primary reinforcing fibers. The composite may be made by uniformly distributing the secondary reinforcing fibers in a dispersant. A glass powder is mixed in a carrier liquid to create a slurry and the secondary reinforcing fibers and dispersant are slowly added to the slurry so the fibers uniformly disperse as they are added. A binder is also added to the slurry. A continuous fiber is impregnated with the slurry and the impregnated fiber is dried to remove the carrier liquid. The impregnated yarn is cut to a suitable length and molded by a suitable molding method to form a fiber reinforced glass matrix composite.Type: GrantFiled: October 9, 1991Date of Patent: September 3, 1996Assignee: United Technologies CorporationInventors: William K. Tredway, Craig W. Musson, Otis Y. Chen