Patents Assigned to Engelhard Corporation
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Patent number: 7189454Abstract: A platy pigment substrate having a carbon-containing coating thereon is provided wherein the coating comprises a pyrolyzed carbon-containing ionic species. The products of the present invention may be used in any application where pearlescent pigments have been used heretofore including but not limited to automotive and industrial paint applications.Type: GrantFiled: May 7, 2004Date of Patent: March 13, 2007Assignee: Engelhard CorporationInventors: Geoffrey M. Johnson, Steven A. Jones, Ahmad Moini, Gerald S. Koermer, William M. Jaglowski
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Patent number: 7189376Abstract: Provided are coated, multi-zoned catalyst substrates that trap and combust hydrocarbon and nitrogen oxides pollutants in a single monolith substrate. In some embodiments, the multi-zoned catalysts contain both radial and axial zones. The zones can be formed by deposition of segregated coating compositions (or washcoats) containing platinum group metals and pollutant adsorbent materials to form layers along the length and radius of the honeycomb substrate. The invention also relates to exhaust gas treating systems that incorporate the multi-zoned catalysts.Type: GrantFiled: February 13, 2003Date of Patent: March 13, 2007Assignee: Engelhard CorporationInventors: Sanath V. Kumar, Harold N. Rabinowitz
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Patent number: 7187396Abstract: Laser marking of plastic material is achieved by incorporating into the plastic a laser marking particulate additive having a particle size of less than 100 nm. A mixed oxide particle of tin and antimony having a particle size of 10–70 nm is useful as a laser marking additive when using a YAG laser. A metallic powder can further be added to improve marking contrast.Type: GrantFiled: November 1, 2004Date of Patent: March 6, 2007Assignee: Engelhard CorporationInventors: James B. Carroll, Jr., Steven A. Jones
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Publication number: 20070048239Abstract: Cosmetic and personal care formulations with goniochromatic non-quarter wave multi-quadrant multi-layer effect materials includes a transparent substrate such as borosilicate, a layer of high refractive index material on the substrate, and alternating layers of low refractive index and high refractive index materials on the first layer, the total number of layers being an odd number of at least three, all adjacent layers differing in refractive index by at least about 0.2 and at least one of the layers having an optical thickness which is different from all of the other layers. The resulting multilayer effect pigment is not a quarter-wave stack. Further color intensity, dimension and depth is obtained by combining the goniochromatic effect material with combination pigment which is obtained by combining a transparent substrate, an interference pigment and an absorption colorant.Type: ApplicationFiled: June 5, 2006Publication date: March 1, 2007Applicant: Engelhard CorporationInventors: Leila Song, Betty Aucar, Gabriel Uzunian
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Publication number: 20070048416Abstract: Ingestible drugs contain an effect pigment.Type: ApplicationFiled: September 11, 2006Publication date: March 1, 2007Applicant: Engelhard CorporationInventors: Gabriel Uzunian, William Sullivan
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Patent number: 7182883Abstract: A massive body, e.g., a tablet, for producing a solution of chlorine dioxide when the massive body is added to liquid water. The massive body comprises a metal chlorite such as sodium chlorite, an acid source such as sodium bisulfate and a source of free halogen such as the sodium salt of dichloroisocyanuric acid or a hydrate thereof. The concentration of free halogen in the solution will be: (a) less than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.25:1 by weight; or (b) equal to or greater than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.50:1 by weight.Type: GrantFiled: December 23, 2003Date of Patent: February 27, 2007Assignee: Engelhard CorporationInventors: Barry K. Speronello, Gerald S. Koermer, Appadurai Thangaraj, Ahmad Moini
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Patent number: 7182927Abstract: The present invention is directed to an iron-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the iron-promoted zeolite beta is treated so as to provide increased amounts of the iron promoter in the form of Fe(OH). The stabilized zeolite is formed by cation exchange of an iron salt into a zeolite beta which has a reduced sodium content such as by exchanging a sodium beta with ammonium or hydrogen cations. A zeolite beta having a reduced carbon content and a Si/Al ratio of no more than 10 also increases the Fe(OH) content of the iron-promoted catalyst. The iron-promoted catalyst which has the iron in the form of Fe(OH) is characterized by a peak at 3680±5 cm?1 in the IR spectra.Type: GrantFiled: January 19, 2005Date of Patent: February 27, 2007Assignee: Engelhard CorporationInventors: Pascaline H. Tran, Xinsheng Liu, James M. Chen
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Publication number: 20070037711Abstract: The present composition comprises: (a) 99.80% by weight or less of at least one particle; (b) film forming spreading agent present in an amount of: (i) equal to or greater than 0.20% by weight if a spreader inhibitor is not present or (ii) equal to or greater than about 0.35% by weight if a spreader inhibitor is present; and optionally (c) at least one volumization agent. The present composition may be used in agricultural compositions and in non-agricultural uses.Type: ApplicationFiled: August 10, 2006Publication date: February 15, 2007Applicant: Engelhard CorporationInventors: Richard Pluta, David Glenn, Gary Puterka, John Mosko
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Patent number: 7175834Abstract: The present invention relates to a sunscreen formulation which exhibits superior ultraviolet protection and water resistance than prior art sunscreen compositions. The sunscreen formulation comprises (a) a dispersion comprising a sunscreen active agent and (b) a base composition comprising a rheological modifying agent and water. The sunscreen formulation is substantially free of surfactants. According to a preferred embodiment, the sunscreen active agent is ethylhexylmethoxycinnamate, butylmethoxydibenzoylmethane, or a combination thereof. The sunscreen formulation preferably comprises a phosphorylated starch derivative as a rheological modifying agent. Another embodiment of the present invention is a method of protecting skin or hair from ultraviolet radiation by applying an effective amount of the sunscreen formulation of the present invention to the skin or hair.Type: GrantFiled: April 26, 2005Date of Patent: February 13, 2007Assignee: Engelhard CorporationInventors: Duncan T. Aust, James M. Wilmott, James A. Hayward
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Publication number: 20070021573Abstract: Disclosed are catalyst systems and methods of making the catalyst systems for the polymerization of an olefin containing a solid titanium catalyst component containing an inorganic titanium compound, a magnesium alcohol adduct made from an inorganic magnesium compound and an alcohol, and a porous support having at least one of a certain specific surface area, a certain pore volume, and a certain median particle size. The catalyst system may further contain an organoaluminum compound and optionally an organosilicon compound. Also disclosed are methods of making polyolefins.Type: ApplicationFiled: July 20, 2005Publication date: January 25, 2007Applicant: Engelhard CorporationInventors: Zhidong Zhu, Main Chang
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Patent number: 7160484Abstract: The present invention is generally directed to a method of producing an aqueous solution of chlorine dioxide from the reaction of a metal chlorite and an acid forming component which do not react to produce chlorine dioxide in the substantial absence of water. The reactants are separated from liquid water by a membrane which allows the controlled passage of liquid water and/or water vapor into contact with the reactants. The chlorine dioxide thus generated passes out through the membrane into the liquid water to produce the desired aqueous solution. Aqueous solutions containing chlorine dioxide produced in this manner can be conveniently used for commercial and domestic cleaning operations such as in the food industry.Type: GrantFiled: January 12, 2001Date of Patent: January 9, 2007Assignee: Engelhard CorporationInventors: Appadurai Thangaraj, Barry K. Speronello, Timothy D. Wildman
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Publication number: 20060292371Abstract: A platy pigment substrate having a carbon-containing coating thereon is provided wherein the coating comprises a pyrolyzed carbon-containing ionic species. The products of the present invention may be used in any application where pearlescent pigments have been used heretofore including but not limited to automotive and industrial paint applications.Type: ApplicationFiled: April 25, 2006Publication date: December 28, 2006Applicant: ENGELHARD CORPORATIONInventors: Geoffrey Johnson, Steven Jones, Ahmad Moini, Gerald Koermer, William Jaglowski
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Patent number: 7153803Abstract: Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of polyethylene containing a solid titanium catalyst component containing a titanium compound and a support made from a magnesium compound, an alkyl silicate, and a monoester. The catalyst system may further contain an organoaluminum compound. Also disclosed are methods of making various types of polyethylene involving polymerizing ethylene in the presence of hydrogen and a catalyst system containing a support made from a magnesium compound, an alkyl silicate and a monoester.Type: GrantFiled: June 28, 2004Date of Patent: December 26, 2006Assignee: Engelhard CorporationInventors: Zhidong Zhu, Main Chang, Christopher J. Aarons
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Patent number: 7150145Abstract: A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.Type: GrantFiled: December 17, 2003Date of Patent: December 19, 2006Assignee: Engelhard CorporationInventors: Joseph A. Patchett, Rudolfus Petrus Verbeek, Karl Richard Grimston, Gary Wayne Rice, John Lawrence Calabrese, Mathus Van Genderen
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Patent number: 7150854Abstract: The invention pertains to a device for generating aqueous chlorine dioxide solutions when the device is contacted with liquid water. The device comprises an alkali metal or alkaline earth metal chlorite, e.g., sodium chlorite, and a chemical reagent comprising an acid or a material capable of releasing an acid upon exposure to liquid water, e.g., sodium bisulfate. The chlorite and the reagent are either combined as a mixture or are disposed as separate components adhered to the surface of one or more substrates. Upon exposure to liquid water, the chlorite and the reagent produce boundary layers. The chlorite and the reagent are disposed upon, and adhered to, the surface(s) of the substrates in a manner such that upon exposure to liquid water, the chlorite boundary layer comes into contact with the reagent boundary layer to thereby produce an aqueous chlorine dioxide solution.Type: GrantFiled: March 19, 2002Date of Patent: December 19, 2006Assignee: Engelhard CorporationInventors: Gerald S. Koermer, Barry K. Speronello, Linda Hratko
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Patent number: 7143578Abstract: A diesel engine aftertreatment exhaust system uses catalyzed soot filters for particulate matter reduction and urea SCR catalysts for NOx reduction on diesel engines in a combined system to lower particulate matter and NOx at the same time. With this integral emission control system, diesel engines are able to meet ultra low emission standards.Type: GrantFiled: October 26, 2004Date of Patent: December 5, 2006Assignee: Engelhard CorporationInventors: Ramesh M. Kakwani, Kenneth C. Voss, Joseph A. Patchett, Karl R. Grimston
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Publication number: 20060235089Abstract: Provided are improved carbon monoxide removal articles and processes for treating hydrogen gas streams to achieve very low threshold levels of carbon monoxide. The articles have a substrate with an inlet end, an outlet end, a length extending between the inlet end to the outlet end, wall elements and a plurality of cells defined by the wall elements. A first layer is deposited on the wall elements from the inlet end and extending at least partially toward the outlet end. The first layer has a preferential carbon monoxide oxidation catalyst. A second layer contains a methanation catalyst, and is deposited on at least part of the first layer from the outlet end. The second layer has a length that is about 10-70% of the substrate length.Type: ApplicationFiled: June 22, 2006Publication date: October 19, 2006Applicant: ENGELHARD CORPORATIONInventor: Lawrence Shore
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Patent number: 7118717Abstract: Provided are improved carbon monoxide removal articles and processes for treating hydrogen gas streams to achieve very low threshold levels of carbon monoxide. The articles have a substrate with an inlet end, an outlet end, a length extending between the inlet end to the outlet end, wall elements and a plurality of cells defined by the wall elements. A first layer is deposited on the wall elements from the inlet end and extending at least partially toward the outlet end. The first layer has a preferential carbon monoxide oxidation catalyst. A second layer contains a methanation catalyst, and is deposited on at least part of the first layer from the outlet end. The second layer has a length that is about 10–70% of the substrate length.Type: GrantFiled: September 6, 2002Date of Patent: October 10, 2006Assignee: Engelhard CorporationInventor: Lawrence Shore
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Patent number: 7118722Abstract: The present invention is directed to a metal-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the zeolite beta is pre-treated so as to provide the zeolite with improved hydrothermal stability. The stabilized beta zeolite is provided by incorporating into the zeolite structure non-framework aluminum oxide chains. The aluminum oxide chains can be incorporated into the zeolite structure by a unique steaming regimen or by treatment with rare earth metals, such as cerium. The treatment process is unlike well-known methods of dealuminizing zeolites for the purpose of increasing the silica to alumina ratio. In the present invention, the non-framework aluminum oxide is characterized by FT-IR by a peak at 3781±2 cm?1, which when present, stabilizes the zeolite against further dealumination such as under oxidizing and harsh hydrothermal conditions.Type: GrantFiled: December 26, 2002Date of Patent: October 10, 2006Assignee: Engelhard CorporationInventors: Pascaline H. Tran, Xinsheng Liu, James M. Chen, Gerard D. Lapadula, Howard Furbeck
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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