Glass Containing Patents (Class 106/489)
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Publication number: 20100095868Abstract: The invention relates to coated pearlescent pigments, whereby the coating covers the pearlescent pigments and comprises uncured, however, chemically cross-linkable and/or oligomeric and/or polymeric binding agents that can be cross-linked by heat, IR radiation, UV radiation and/or electron rays. The invention also relates to a method for producing the coated pearlescent pigments and to the use thereof. The invention additionally relates to a coating composition and to a coated article.Type: ApplicationFiled: June 23, 2006Publication date: April 22, 2010Inventors: Günter Kaupp, Ulrich Schmidt, Burkhard Schreiber, Alexander Albrecht
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Publication number: 20090311209Abstract: The present invention relates to pigments, comprising a plate-like substrate of glass having an average thickness of <1 ?m, especially of from 20 nm to 400 nm, and (a) a dielectric material, especially a metal oxide, having a high index of refraction; or (a) a metal layer, especially a thin semi-transparent metal layer; a process for their production and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings (paints), printing inks, plastics, cosmetics, glazes for ceramics and glass.Type: ApplicationFiled: June 12, 2006Publication date: December 17, 2009Inventor: Patrice Bujard
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Patent number: 7625445Abstract: An aggregate for making a molded article and a method of making the aggregate is disclosed. The aggregate consists of an acrylate based resin matrix and anti abrasive particles chiefly quartz particles having a size of between 0.1 mm and 1.2 mm, at least 30 percent of the anti abrasive particles being broken particles having irregular shape with sharp edges silanized and non-silanized. The aggregate includes fine powders, cross linking agent and Peroxides. The molded article made from the aggregate has anti-abrasive properties and “look and feel” of natural material.Type: GrantFiled: September 13, 2004Date of Patent: December 1, 2009Inventors: Chirag Parekh, Ashwin Parekh
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Patent number: 7485183Abstract: Pigment mixtures which have at least two components, where component A comprises effect pigments based on glass flakes and component B comprises flake-form, needle-shaped, spherical or crystalline colorants or fillers, and to the use thereof, in particular in cosmetic formulations and for the coloring or as a coating of products in the foods and pharmaceuticals sector are described.Type: GrantFiled: March 29, 2004Date of Patent: February 3, 2009Assignee: Merck Patent GmbHInventors: Veronika Hochstein, Sabine Schoen
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Publication number: 20090022943Abstract: There is provided a bonding material composition capable of suppressing crack generation on an end face of a resultant honeycomb structure to a large extent by reducing anisotropy of Young's modulus after curing of the bonding material by the use of an isotropic filler without using inorganic fibers. The bonded body has two or more members unitarily bonded by means of a bonding material layer, and the relational expression of 0.5<Ez/Ex<1.5 is satisfied when a Young's modulus in a direction perpendicular to a bonded surface of the bonding material layer is Ez and a Young's modulus in a direction parallel to the bonded surface and parallel to a longer axial direction of the bonded surface is Ex and wherein the bonded material has a porosity of 25 to 85%.Type: ApplicationFiled: September 22, 2008Publication date: January 22, 2009Applicant: NGK INSULATORS, LTD.Inventors: Takahiro TOMITA, Kenji MORIMOTO
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Publication number: 20090004413Abstract: A composition which contains a mixture of a shear thickening fluid and at least one inert filler and said shear thickening fluid and filler remain in a conformable form.Type: ApplicationFiled: February 9, 2006Publication date: January 1, 2009Applicant: UD TECHNOLOGY CORPORATIONInventors: Norman Wagner, Eric D. Wetzel
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Publication number: 20080305184Abstract: The invention relates to a pigment mixture consisting of at least two constituents, constituent A being uncoated, monocoated or multicoated glass lamellae, and constituent B being nacreous pigments based on phyllosilicates, SiO2 lamellae, Fe2O3 lamellae or Al2O3 lamellae. The invention also relates to the use of said pigment mixture, inter alia, in paints, dyes, especially printing inks, plastics, powder paints, pastes and cosmetic formulations.Type: ApplicationFiled: June 30, 2005Publication date: December 11, 2008Inventors: Dieter Heinz, Ralf Anselmann, Klaus Boehm, Sabine Schoen
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Publication number: 20080210133Abstract: The present invention provides a system of N?3 interference pigments, which is distinguished in that it exhibits a maximum colour gamut through specification of the optimum pigment hue angle hu, vi (i=1 to N) in the CIELUV system.Type: ApplicationFiled: July 26, 2006Publication date: September 4, 2008Inventors: Michael Roesler, Adalbert Huber
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Patent number: 7407996Abstract: A wall repair compound useful for filling and repairing cracks, holes, and other imperfections in a wall surface includes a conventional filler material, a conventional binder material, and a dust reducing additive which reduces the quantity of airborne dust particles generated when sanding the hardened joint compound. Airborne dust reducing additives include oils, surfactants, solvents, waxes, and other petroleum derivatives. The additive can be added to conventional ready-mixed joint compounds and to setting type joint compounds. A method of reducing the quantity of airborne dust generated when sanding a fully hardened joint compound includes mixing a sufficient quantity of the dust reducing additive with the joint compound prior to when the joint compound has been applied to the wall.Type: GrantFiled: February 17, 2006Date of Patent: August 5, 2008Assignee: 3M Innovative Properties CompanyInventor: Nathaniel P. Langford
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Publication number: 20080167416Abstract: A pigment composition comprising an intimate mixture of an organic pigment and fumed silica is prepared which exhibit improved coloristic characteristics including excellent chroma, color strength and enhanced color flop when incorporated into in polymeric systems, such as plastics or surface coatings, for example inks and paints. Also provided are coating compositions and plastic articles that are pigmented with a tinctorially effective amount of the inventive pigment composition. A particular embodiment of the invention relates to pigments useful in automotive coatings.Type: ApplicationFiled: December 20, 2007Publication date: July 10, 2008Inventors: Tapan K. Debroy, James Will
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Publication number: 20080149285Abstract: This invention is directed to a method of reducing the water demand of expanded perlite that includes obtaining a vibrating screen supported at an angle and placing expanded perlite on the vibrating screen. The expanded perlite is moved over the screen past toward a burner at a rate that heats the expanded perlite to a temperature sufficient to anneal it. The expanded perlite is then moved away from the burner and allowed to cool. Another embodiment of this invention is directed to a method of making a gypsum product. The method includes annealing perlite by the method described above, then preparing a slurry of calcium sulfate hemihydrate, additives, water and the annealed perlite. The slurry is formed into the shape of the gypsum product and allowed to set. This process is particularly useful in making gypsum panels and acoustical panels that benefit from the use of lightweight materials.Type: ApplicationFiled: December 21, 2006Publication date: June 26, 2008Inventor: Christopher R. Nelson
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Patent number: 7318861Abstract: An effect pigment is constituted by coated laminar platelets in which the platelets are a mixture of different platelet materials, one of which is platy glass or platy aluminum oxide, and in which the pigment exhibits visual homogeneity.Type: GrantFiled: December 17, 2003Date of Patent: January 15, 2008Assignee: BASF Catalysts LLCInventors: Frank Bagala, Sr., Curtis J. Zimmermann
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Patent number: 7285508Abstract: The present invention provides a glass flake that is substantially free of boron trioxide (B2O3), barium oxide (BaO), zinc oxide (ZnO), and fluorine (F) and has sufficient heat resistance and good formability for glass flake. The glass flake of the present invention includes a glass composition that contains the following components, expressed in mol %; 50?SiO2?65; 4?Al2O3<12; 5?SrO?25; 10<(MgO+SrO)?30; 20?(MgO+CaO+SrO)?45; and 0<(Li2O+Na2O+K2O)<2; wherein the glass composition is substantially free of B2O3, BaO, ZnO, and F. This glass flake is useful for resin compositions, paints, cosmetics, ink compositions, and the like.Type: GrantFiled: April 30, 2004Date of Patent: October 23, 2007Assignee: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Akihiro Koyama
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Patent number: 7226503Abstract: The present invention relates to effect pigments based on thin glass flakes and to a method for the production of such pigments. The resulting pigment can be used in any application for which pearlescent pigments have been heretofore used such as, for example, in plastics, paints, inks, cosmetic formulations, coatings including solvent or waterborne automotive paint systems, powder coatings, inks and agriculture foils.Type: GrantFiled: April 11, 2002Date of Patent: June 5, 2007Assignee: Merck Patent GmbHInventors: Ralf Anselmann, Klaus Ambrosius, Marcus Mathias
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Patent number: 7169322Abstract: Aqueous dispersion containing a silicon-aluminum mixed oxide powder, the powder containing 0.1 to 99.9 wt. % Al2O3 and Si—O—Al-bonds. The dispersion can be produced using dispersing and/or grinding devices which a achieve an energy input of at least 200 KJ/m3. The dispersion can be used for the chemical-mechanical polishing of semiconductor substrates.Type: GrantFiled: February 21, 2002Date of Patent: January 30, 2007Assignee: Degussa AGInventors: Frank Menzel, Wolfgang Lortz, Helmut Mangold
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Patent number: 7160375Abstract: An aqueous glittering color material composition of the present invention is an aqueous glittering color material composition comprising a glittering pigment having a water repellent particle surface and it includes the following ingredients. The aqueous glittering color material composition of the present invention is used for an ink for writing instruments, for cosmetics, and the like. (a) As said glittering pigment, a metal coated glass flake pigment having a particle surface with water repellent treatment with a titanate or a silane coupling agent. (b) A colorant, and (c) A fixing resin.Type: GrantFiled: February 4, 2003Date of Patent: January 9, 2007Assignee: Sakura Color Products CorporationInventor: Yuki Yamamoto
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Patent number: 7118622Abstract: An unsupported platy titanium dioxide pigment containing an organic dye laked thereon. The dyed TiO2 pigment is useful to color cosmetic, food, and drug formulations.Type: GrantFiled: May 11, 2005Date of Patent: October 10, 2006Assignee: Engelhard CorporationInventors: Frank A. Mazzella, Gabriel E. Uzunian
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Patent number: 6897171Abstract: The present invention refers to glass-ceramics consisting of the mixtures (I): ZrO2—SiO2—MeIIO, or (II) SiO2—MeIIIO2—MeIIO, wherein: MeII is chosen in the group consisting of: Ca, Ba, Mg, Zn or mixture thereof; MeIII is chosen in the group consisting of Al, B or mixtures thereof; each of the above said constituents being present in determined quantities; the invention refers also to a process for preparing the glass-ceramics above defined; porcelain stonewares and glazes containing them and their use for preparing ceramic items.Type: GrantFiled: June 12, 2003Date of Patent: May 24, 2005Assignee: Colorobbia Italia S.p.A.Inventors: Marco Bitossi, Giovanni Baldi, Davide Settembre Blundo, Enrico Generali
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Patent number: 6866712Abstract: A fibrous reinforcing material (1) is envisaged which is produced from glass filaments (2), advantageously consisting of fragments of glass yarns (3) or of chopped yarns, having a mean diameter of greater than five micrometers and a mean length of greater than six millimeters. The process comprises a selection step (4a, 4b) during which the glass yarns (3) consisting of filaments having a diameter greater than or equal to five micrometers and less than or equal to twenty-four micrometers are chosen, optionally a step (5) of mixing the selected yarns, and a milling step (6) during which the mixed yarns are chopped into filaments (2) having a length of greater than or equal to six millimeters. Advantageously, the fibrous material is in the form of flakes.Type: GrantFiled: April 12, 2000Date of Patent: March 15, 2005Assignee: Saint-Gobain Vetrotex France S.A.Inventors: Francesco Rossi, Antonio Ferrante
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Publication number: 20040258640Abstract: The present invention relates to an interference pigment having a multilayer structure, characterized in that it has a spectral reflectance that differs by not more than 20% from a reference spectral reflectance, preferably of a type of keratin material, for at least a portion of the visible spectrum 200 nm broad, this pigment being characterized in that the multilayer structure comprises at least one layer substantially totally coating an underlying layer.Type: ApplicationFiled: September 17, 2003Publication date: December 23, 2004Applicant: L'OREALInventor: Jean-Christophe Simon
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Patent number: 6822020Abstract: Modified silica fillers are prepared by contacting silica with blends or mixtures containing diorganodihalosilanes and tetrahalosilanes in weight ratios of 1:0.1 to 1:2, respectively. While dialkyldichlorosilanes and tetrahalosilanes such as dimethyldichlorosilane and silicon tetrachloride, respectively, are most preferred, the blends or mixtures may also comprise compositions containing other silanes such as mercaptopropyltriethoxysilane.Type: GrantFiled: July 18, 2002Date of Patent: November 23, 2004Assignee: Dow Corning CorporationInventor: Anthony Revis
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Patent number: 6800267Abstract: Aluminum-doped precipitated silicas having a BET surface area of more than 300 m2/g and aluminum distributed uniformly in the silica particles are prepared by sequentially heating a mixture of water and sodium silicate at a temperature of from 70 to 86° C. and adding sulfuric acid until half of the sodium silicate is neutralized, then aging the mixture for a time of from 30 to 120 minutes, adjusting the pH of the mixture with sulfuric acid to a range of from 3.0 to 7.0, thereby precipitating the aluminum-doped silica, filtering the aluminum-doped silica from the mixture to form a filtercake and washing the filtercake, followed by drying and/or grinding the washed filtercake. An aluminum salt solution is metered into the mixture at step a) and/or step c). The aluminum-doped precipitated silicas of the present invention may be used in coatings for paper and other media intended for ink jet printing.Type: GrantFiled: August 29, 2001Date of Patent: October 5, 2004Assignee: Degussa AGInventors: Jürgen Schubert, Klaus-Dieter Hellwig, Astrid Muller
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Patent number: 6770689Abstract: The glittering ink of the present invention contacts scaly glittering particles, a water-soluble resin, a water-soluble organic solvent, colorant and water. The said scaly glittering particles have a median diameter of at least 10 &mgr;m, a ratio of smoothness on the particle surface to a median diameter of not greater than 0.011, and a surface coating ratio of the said colorant in a written mark of not greater than 80% in a state of a dried written mark. In addition, the aqueous glittering ink of the present invention has the thixotropy index (T.I. value) of not less than 1.3, represented by the ratio of V0.5 to V1.0 (V0.5/V1.0), wherein V0.5 is the viscosity with the rotation speed of 0.5 rpm and V1.0 is the viscosity with the rotation speed of 1.0 rpm when the ink is measured by an ELD-typed viscometer (3° R14 cone, at the temperature of 20° C.) and the ink has the V0.5, the viscosity with the rotation speed of 0.5 rpm, of 1000˜15000 mPa·s.Type: GrantFiled: September 19, 2000Date of Patent: August 3, 2004Assignee: Sakura Color Products Corp.Inventors: Yasuyuki Yoshimura, Naoshi Murata, Yuki Yamamoto, Tomohiro Sawa
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Publication number: 20040123779Abstract: An effect pigment is constituted by coated laminar platelets in which the platelets are a mixture of different platelet materials, one of which is platy glass or platy aluminum oxide, and in which the pigment exhibits visual homogeneity.Type: ApplicationFiled: December 17, 2003Publication date: July 1, 2004Inventors: Frank Bagala, Curtis J. Zimmermann
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Patent number: 6676741Abstract: Methods and apparatus are provided for uniformly depositing a coating material from a vaporization source onto a powdered substrate material to form a thin coalescence film of the coating material that smoothly replicates the surface microstructure of the substrate material. The coating material is uniformly deposited on the substrate material to form optical interference pigment particles. The thin film enhances the hiding power and color gamut of the substrate material. Physical vapor deposition process are used for depositing the film on the substrate material. The apparatus and systems employed in forming the coated particles utilize vibrating bed coaters, vibrating conveyor coaters, or coating towers. These allow the powdered substrate material to be uniformly exposed to the coating material vapor during the coating process.Type: GrantFiled: February 20, 2003Date of Patent: January 13, 2004Assignee: Flex Products, Inc.Inventors: Roger W. Phillips, Vladimir Raksha
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Patent number: 6676743Abstract: The present invention provides a lightweight clay which can be easily molded into a given shape, exhibits proper lightweight characteristics and storing characteristics, and can be manufactured at a low cost, and a manufacturing method thereof. In such a lightweight clay and the manufacturing method thereof, an average particle size of the organic hollow micro spheres is set to a value which falls within a range of 15 to 150 &mgr;m and, an addition quantity of the organic hollow micro spheres is set to a value which falls within a range of 0.1 to 6 weight % with respect to a total quantity of the lightweight clay, and whiteness degree (WL) measured in accordance with JIS L 0803 is set to not less than 50.Type: GrantFiled: February 12, 2003Date of Patent: January 13, 2004Inventor: Toshiyuki Yamamuro
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Patent number: 6635107Abstract: The invention pertains to pigment granulates for the coloring of building materials and processes to manufacture such granulates. The pigment granulates are granulated from a mixture containing the pigment, at least one wetting agent and/or binder and/or explosive, an agent to reduce the tendency to blister and/or an agent to increase the pigment content in the mixture to be granulated.Type: GrantFiled: December 17, 2001Date of Patent: October 21, 2003Assignee: Brockhues GmbH & Co.KGInventors: Christian Egger, Klaus Nungess, Adolf Veit, Stefan Volger
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Publication number: 20030177950Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.Type: ApplicationFiled: March 24, 2003Publication date: September 25, 2003Applicant: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Sabine Schoen, Reiner Vogt, Norbert Schul, Karl Osterried, Johann Munz
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Publication number: 20030177949Abstract: Methods and apparatus are provided for uniformly depositing a coating material from a vaporization source onto a powdered substrate material to form a thin coalescence film of the coating material that smoothly replicates the surface microstructure of the substrate material. The coating material is uniformly deposited on the substrate material to form optical interference pigment particles. The thin film enhances the hiding power and color gamut of the substrate material. Physical vapor deposition process are used for depositing the film on the substrate material. The apparatus and systems employed in forming the coated particles utilize vibrating bed coaters, vibrating conveyor coaters, or coating towers. These allow the powdered substrate material to be uniformly exposed to the coating material vapor during the coating process.Type: ApplicationFiled: February 20, 2003Publication date: September 25, 2003Applicant: Flex Products, Inc.Inventors: Roger W. Phillips, Vladimir Raksha
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Patent number: 6613137Abstract: The present invention relates to coating compositions, preferably printing inks for security applications comprising at least one organic resin, at least one pigment and optionally at least one organic solvent. Said pigment comprises glass ceramic composite particles, containing at least one crystalline particle embedded in a glass matrix. Said glass ceramic particles have a particle size in the range of between 0.1 &mgr;m to 50 &mgr;m. Preferably active ions selected from the group of the rare-earth elements are incorporated into the crystalline phase of the composite to provide the glass ceramics with luminescent up- and down-converting characteristics. Glass ceramic luminescent have excellent physical and chemical stability. The glass matrix permits as well the stabilization of the photophysically interesting halide host crystals which have low phonon energies. Such materials provide unusual excitation and emission properties.Type: GrantFiled: February 5, 2002Date of Patent: September 2, 2003Assignee: SICPA Holding S.A.Inventors: Philipp Egger, Edgar Müller
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Publication number: 20030159623Abstract: The invention pertains to an amorphous silica particle comprising 0.1 to 105 ppm boron atoms, and optionally 0.05 to 15 wt. % aluminum atoms wherein the boron and aluminum atoms are covalently bonded to the oxygen atoms of the silica network. The amorphous silica particles arc used as a reinforcing filler for rubber articles, particularly for tires, more particularly for tire treads.Type: ApplicationFiled: March 14, 2003Publication date: August 28, 2003Inventors: Paulus Johannes Kunkeler, Willem Hendrik Dokter
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Patent number: 6605554Abstract: The present invention refers to glass-ceramics consisting of the mixtures (I): ZrO2—SiO2—MeIIO, or (II) SiO2—MeIIIO2—MeIIO, wherein: MeII is chosen in the group consisting of: Ca, Ba, Mg, Zn or mixture thereof; MeIII is chosen in the group consisting of Al, B or mixtures thereof; each of the above said constituents being present in determined quantities; the invention refers also to a process for preparing the glass-ceramics above defined; porcelain stonewares and glazes containing them and their use for preparing ceramic items.Type: GrantFiled: February 7, 2000Date of Patent: August 12, 2003Assignee: Colorobbia Italia S.p.A.Inventors: Marco Bitossi, Giovanni Baldi, Davide Settembre Blundo, Enrico Generali
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Publication number: 20030116063Abstract: The invention relates to fiber compositions that can be pumped and metered in the fashion of fluid chemical admixtures into a concrete mix, thereby enabling the fibers to be dispensed by concrete ready-mix plant operators who can provide verification of fiber administration and dosage. The fibers, particularly plastic shrinkage control fibers having large cumulative surface area, are suspended in an aqueous medium such that their surface area is already wetted out, thereby virtually assuring that substantial uniform fiber dispersion can be achieved without clumping and the delay that is usually required by fiber intermixing.Type: ApplicationFiled: February 6, 2003Publication date: June 26, 2003Applicant: W.R. GRACE & CO.-CONN.Inventors: Michael B. Macklin, Anandakumar Ranganathan, Klaus-Alexander Rieder
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Patent number: 6572695Abstract: A bismuth oxychloride effect pigment has a carbon black particulate at about the surface of the crystals of the bismuth oxychloride. The pigment is prepared by, for instance, growing the bismuth oxychloride crystals, and adding the particulate before the hydrolysis is complete.Type: GrantFiled: August 19, 2002Date of Patent: June 3, 2003Assignee: Engelhard CorporationInventor: Paul B. Cao
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Patent number: 6547869Abstract: Described is a process for preparing a powder coating material, in which a mixture comprising binders, pigments and also, where appropriate, fillers, additives and cross linkers is extruded and then ground. The pigment fraction of this mixture at least in part comprises surface-modified effect pigment that has been coated with a low molecular mass polyethylene or polypropylene. Also, described is a powder coating material prepared by this process and the use of effect pigments coated with low molecular mass polyethylene or polypropylene to prepare powder coating materials.Type: GrantFiled: July 19, 2001Date of Patent: April 15, 2003Assignee: Merck Patent GmbHInventor: Tobias Witt
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Publication number: 20030041626Abstract: An insulation product contains a mixed layer of textile fibers and of rotary and/or flame attenuated fibers. A process for manufacturing the insulation product includes passing fibrous bundles of textile fibers and of rotary and/or flame attenuated fibers together through an apparatus that divides the textile fibers into segments and that mixes the textile fiber segments with the rotary and/or flame attenuated fibers. The bundles of rotary and/or flame attenuated fibers can be in the form of specially manufactured mats and/or can be production scraps. The resulting mixture of fibers is formed into a non-woven batt, mat, blanket, or board. The process provides a mixed fiber product, with an improved combination of thermal and acoustic insulating performance and adequate strength, at a low production cost.Type: ApplicationFiled: September 6, 2001Publication date: March 6, 2003Applicant: CERTAINTEED CORPORATIONInventors: Alain Yang, Gary Tripp
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Patent number: 6524381Abstract: Methods and apparatus are provided for uniformly depositing a coating material from a vaporization source onto a powdered substrate material to form a thin coalescence film of the coating material that smoothly replicates the surface microstructure of the substrate material. The coating material is uniformly deposited on the substrate material to form optical interference pigment particles. The thin film enhances the hiding power and color gamut of the substrate material. Physical vapor deposition processes are used for depositing the film on the substrate material. The apparatus and systems employed in forming the coated particles utilize vibrating bed coaters, vibrating conveyor coaters, or coating towers. These allow the powdered substrate material to be uniformly exposed to the coating material vapor during the coating process.Type: GrantFiled: March 31, 2000Date of Patent: February 25, 2003Assignee: Flex Products, Inc.Inventors: Roger W. Phillips, Vladimir Raksha
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Publication number: 20030003294Abstract: Systems and methods of making and using fine particle materials in pigment blends and for using the aforementioned pigment blends in paint, coating, or coloring compositions are provided. This invention further provides systems and methods of enhancing the visual appearance of a variety of substrates by introducing a paint, coating, or coloring composition to the substrate. The fine particle materials of the present invention have a substantially random geometric shape, a particle size less than about 100 microns, and help provide both functional and visual enhancing properties to compositions and substrates containing these fine particle materials.Type: ApplicationFiled: July 16, 2002Publication date: January 2, 2003Applicant: Ameritech Holding Corporation, a corporation of New YorkInventors: Guido Greco, Vincent Pernice, Barry E. Scheetz
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Patent number: 6492029Abstract: The invention relates to a novel method of enameling substrates comprised of glass or vitroceramic material, according to which method the enamel composition contains graphite as a component, with the aim of improving the mechanical properties of the enameled substrate and/or conferring anti-adhesive properties on the composition. The invention also relates to the composition, and the enameled substrates obtained.Type: GrantFiled: July 12, 1995Date of Patent: December 10, 2002Assignee: Saint-Gobain Glass FranceInventor: Andre Beyrlé
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Patent number: 6372288Abstract: A ceramic welding process for the formation of a coherent refractory repair mass on a surface of an electrocast refractory material includes providing an electrocast refractory material having a surface to be repaired; providing a first powder mixture comprised of combustible particles, refractory particles, and at least one constituent which enhances production of a vitreous phase in the coherent refractory repair mass; and projecting the first powder mixture in a gas stream containing oxygen against the surface to be repaired so that the combustible particles react with the projected oxygen against the surface in a highly exothermic manner and release sufficient heat of combustion to form a first coherent refractory repair mass.Type: GrantFiled: August 3, 1998Date of Patent: April 16, 2002Assignee: GlaverbelInventors: Jean-Pierre Meynckens, Léon-Philippe Mottet
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Patent number: 6139614Abstract: Goniochromatic luster pigments are based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere and which comprise at least one layer packet comprisingA) a colorless coating having a refractive index n.ltoreq.1.8 andB) a colorless coating having a refractive index n.gtoreq.2.0.Type: GrantFiled: April 28, 1999Date of Patent: October 31, 2000Assignee: BASF AktiengesellschaftInventors: Raimund Schmid, Oliver Seeger, Norbert Mronga
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Patent number: 6103003Abstract: A textured coating and method of applying same. The coating comprises a high-solids polyamide epoxy having a resin and a hardener, and the epoxy is mixed with a texture aggregate filler being selected from the group consisting of perlite, glass microballoons, glass bubbles, phenolic microballoons, Q cel microspheres, and extendospheres, with the filler preferably being expanded perlite of a size such that about 20% maximum by weight is retained on a U.S. Std. Sieve No. 50 and such that about 65% maximum by weight is retained on a U.S. Std. Sieve No. 100. The epoxy and the filler are mixed in about equal volume.Type: GrantFiled: March 28, 1998Date of Patent: August 15, 2000Inventor: C. Burgess Ledbetter
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Patent number: 6074475Abstract: A low-density, syntactic foam material is provided according to the invention. The syntactic foam material is prepared by mixing together a plurality of microballoons and a finely divided solid thermosetting resin. Fibers are also preferably incorporated into the material during processing to impart specific properties. The mixture is heated to allow the thermosetting resin to flow and wet the microballoons in the mixture. The mixture is then cured to set and crosslink the thermosetting resin to form the syntactic foam of the invention. The syntactic foam material has highly uniform properties and can be used in aerospace applications.Type: GrantFiled: February 10, 1999Date of Patent: June 13, 2000Assignee: McDonnell Douglas CorporationInventors: Edward S. Harrison, Donald J. Bridges, James L. Melquist
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Patent number: 6045914Abstract: A pearlescent pigment comprises C glass flakes having a first layer comprising rutile titanium dioxide or iron oxide thereon and a second layer comprising hydrous oxide or hydroxide of a polyvalent cation, precipitate of said polyvalent cation, and an anionic polymeric compound. A hydrous layer of the rutile forming titanium dioxide or iron oxide is first formed on the glass flakes and the resulting coated flakes are calcined prior to the application of the second layer.Type: GrantFiled: June 2, 1997Date of Patent: April 4, 2000Assignee: Engelhard CorporationInventors: William J. Sullivan, Patricia Elliot, Dana Fleming
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Patent number: 6013370Abstract: A rigid and brittle bright metal flake is formed of a central layer of a reflective material supported on both sides by dielectric layers. In a preferred embodiment, the metal layer is aluminum having a thickness of about 100 nm and the dielectrics are either silicon dioxide or magnesium fluoride, each having a thickness of about 100 nm. The result is a very thin three-layered metal flake about 300 nm thick that exhibits a uniaxial compressive strength of about 8 times a corresponding uniaxial tensile strength. As a result, the metal flake is then afforded the benefits of rigidity and brittle fracture during the manufacturing and applicational processes which ultimately provides favorable planar and specular reflectance characteristics in the visible wavelength range.Type: GrantFiled: January 9, 1998Date of Patent: January 11, 2000Assignee: Flex Products, Inc.Inventors: Kent Coulter, Thomas Mayer, Roger W. Phillips
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Patent number: 5753371Abstract: A pearlescent pigment consists essentially of C glass flakes having a layer comprising rutile titanium dioxide or iron oxide thereon. A hydrous layer of the rutile forming titanium dioxide or iron oxide is formed on the glass flakes and the resulting coated flakes are calcined.Type: GrantFiled: June 3, 1996Date of Patent: May 19, 1998Assignee: The Mearl CorporationInventors: William J. Sullivan, Patricia Elliot, Dana Fleming
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Patent number: 5707440Abstract: A finely divided inorganic filler material is a sintered composite which consists of larger macro-filler particles of glass and of smaller micro-filler particles of glass or ceramics partially covering the macro-filler particle and firmly connected to it by sintering. Plastic materials reinforced with the filler are distinguished by improved abrasion resistance.Type: GrantFiled: October 7, 1994Date of Patent: January 13, 1998Assignee: Heraeus Kulzer GmbHInventors: Xu Hengchang, Joachim Nagel
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Patent number: 5707436Abstract: Prior art production of purple pigments based on colloidal gold on stovable/sinterable/fireable support material involves the reduction of a gold compound in the presence of a chemical reducing agent.Purple pigments may be produced more simply according to the invention by intimately mixing and/or grinding the support material and the gold compound in dry form or by bringing an aqueous solution or suspension of a gold compound and a support material into contact and then thermally treating the mixture at a temperature above the decomposition temperature of the gold compound and below the sintering temperature of the support material, wherein the gold compound is converted into colloidal gold.Type: GrantFiled: March 29, 1995Date of Patent: January 13, 1998Assignee: Cerdec Aktiengesellschaft Keramische FarbenInventors: Klaus-Dieter Fritsche, Bernd Dorbath, Norbert Giesecke, Kerstin Ruhnau
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Patent number: 5702518Abstract: Gold pigments of high opacity and processes for their preparation and use.Type: GrantFiled: June 21, 1996Date of Patent: December 30, 1997Assignee: Merck Patent Gesellschaft mit ceschrankter HaftungInventors: Reiner Vogt, Klaus Bernhard, Gerhard Pfaff
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Patent number: 5686085Abstract: New lysine derivatives containing a containing an alkylsulphonyl or alkylaminocarbonyl group of formula (I):COOH--CH(NH.sub.2)--(CH.sub.2).sub.4 --NH--Xin which X represents an --SO.sub.2 R or --CONHR group, where R represents a linear or branched, saturated or unsaturated, alkyl radical having from 8 to 22 carbon atoms, salts thereof, and mixtures of the derivatives and the salts. A process for the preparation of these derivatives, salts, and mixtures and use of such derivatives, salts, and mixtures, especially in cosmetics. Compositions, especially cosmetic compositions, comprising the derivatives, salts, and mixtures.Type: GrantFiled: January 23, 1996Date of Patent: November 11, 1997Assignee: L'OrealInventors: Thierry Bordier, Michel Philippe