| Patent Number |
Title Of Patent |
Date Issued |
| 5795456 |
Multi-layer non-identical catalyst on metal substrate by electrophoretic deposition |
August 18, 1998 |
| A method for producing by electrophoretic deposition multi-layer, polyfunctional, catalyst members for use in catalytic converters having a plurality of suitably porous and adherent catalyst support coatings of substantially uniform thickness, a plurality of non-identical catalytic a |
| 5792436 |
Method for using a regenerable catalyzed trap |
August 11, 1998 |
| A method of at least periodically removing from a lean gaseous stream a sorbable component such as SO.sub.x includes passing the gaseous stream through a trap member having an oxidation catalyst combined with a sorbent material at a temperature within the sorbing temperature range of the |
| 5791044 |
Assembly and method for catalytic converter structures |
August 11, 1998 |
| A metal foil leaf assembly for catalytic converters, the leaf assembly including at least two juxtaposed foil leaves, each having opposite ends to establish a leaf length and at least one corrugated leaf segment shorter than the leaf length. At least one of the opposite ends is joined |
| 5786031 |
Barrier for a metal substrate |
July 28, 1998 |
| A barrier is formed on a metal substrate by coating the substrate with a metal oxide, calcining the substrate, impregnating the coated substrate with an acid, and calcining the impregnated coating at a temperature high enough to cause the metal oxide to form the barrier. The resulting ba |
| 5783506 |
Ceramic glaze including pearlescent pigment |
July 21, 1998 |
| The present invention relates to a ceramic coating composition contains frit, suspending agent, binder, mica and pearlescent pigment and has a viscosity of about 10 to 50 second as measured by a Zahn cup with orifice diameter of 0.108 inch. |
| 5776423 |
Trimetallic zeolite catalyst and method of NO.sub.x abatement using the same |
July 7, 1998 |
| A catalytic material useful for the abatement of NO.sub.X in a lean environment containing a zeolite material having incorporated therein copper, cobalt and iron as catalytically active species. The catalytically active metals are preferably incorporated into the zeolite by ion exchange |
| 5759255 |
Pearlescent pigment for exterior use |
June 2, 1998 |
| A pearlescent pigment having improved humidity resistance and weatherability is realized by a metal oxide-coated mica pearlescent pigment which has an aluminum or an aluminum-cerium combined with a hydrolyzed silane coupling agent treated surface. |
| 5756053 |
System and method for abatement of food cooking fumes |
May 26, 1998 |
| A method for treating cooking fumes to oxidize oxidizeable particulate and gaseous components thereof includes contacting the fumes with a catalytic material containing ceria and alumina each having a BET surface of at least about 10 m.sup.2 /g, for example, ceria and activated alumina i |
| 5753197 |
Method of purifying emissions |
May 19, 1998 |
| A system for the abatement of industrial process emissions comprises a horizontal regenerative catalytic oxidizer (RCO). The system utilizes at least two regenerative chambers and at least two catalytic chambers in a controlled abatement process. Pollutants injected into the RCO from the |
| 5753029 |
Method for bleaching kaolin clay |
May 19, 1998 |
| An improved method for improving the brightness of clay of the type that is capable of being bleached by an oxidative reagent, such as Georgia gray kaolin. Such clay, in the form of a dispersed slurry, is treated with a combination of an inorganic condensed phosphate, sodium hypochlorite |
| 5749958 |
Delaminated kaolin pigments their preparation and use in paper coating |
May 12, 1998 |
| Paper coating pigments comprising a product obtained by the controlled mechanical delamination of kaolin particles. The pigments provide improved opacification, brightness, printing properties and gloss compared to conventional delaminated kaolin pigments. The pigment of the invention is |
| 5747571 |
Heat stable monoazo red pigment compositions |
May 5, 1998 |
| Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein R and R.sub.1 are independently hydrogen, chloro, methyl or ethyl groups.A process for preparing azo pigment compositions is also disclosed.Paint, ink and plastic compositions c |
| 5746821 |
Pigment compositions |
May 5, 1998 |
| Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein Ar is an aromatic moiety having at least one substituent which is an acid group or salt thereof; X is a hydrocarbyl, carboxylic acid ester, sulfonic acid ester, carboxylic a |
| 5737839 |
Assembly and method for making catalytic converter structures |
April 14, 1998 |
| A catalytic converter body having a jacket tube, a plurality of non-nestable foil leaves having inner and outer ends defining a leaf length, the outer ends being connected to the jacket tube and radiating inward to provide flow passages generally transverse to the leaf length, and a |
| 5735158 |
Method and apparatus for skew corrugating foil |
April 7, 1998 |
| A method and apparatus for continuously forming corrugated sheet material in which corrugations are oriented at an oblique angle to side edges of the sheet material. The apparatus includes a pair of corrugating gear rollers supported for rotation on respective first and second parallel |
| 5728433 |
Method for gold replenishment of electroless gold bath |
March 17, 1998 |
| A method for replenishing an electroless gold plating bath in which metallic gold is dissolved into the bath. |
| 5723659 |
Process for the purification of aromatic polycarboxylic acids |
March 3, 1998 |
| An improved process is disclosed for purifying impure aromatic polycarboxylic acids produced by the catalytic oxidation of polyalkylaromatic hydrocarbons which comprises contacting said impure acid with hydrogen and at least one hydrogenation catalyst, the improvement comprising said |
| 5721188 |
Thermal spray method for adhering a catalytic material to a metallic substrate |
February 24, 1998 |
| A method for applying a coating of catalytic material onto a metallic substrate involves thermal spray deposition of refractory oxide particles directly onto the substrate, preferably to attain an undercoat having a surface roughness of Ra 3 or greater. The catalytic material may then be |
| 5688315 |
Colored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purificati |
November 18, 1997 |
| Described is a process for separating a mixture of finely divided minerals into constituents thereof. In particular, the invention relates to a procedure for effecting such separation by a novel selective flocculation technique wherein a dispersed aqueous pulp containing the mixture of |
| 5685145 |
Method and apparatus for performance enhancement of the manifold catalyst in the automotive exha |
November 11, 1997 |
| In an exhaust gas system comprising a hydrocarbon trap (28) and a downstream catalyst zone (30), a heat exchange catalyst member (10) is incorporated into the system to provide heat exchange between the exhaust gas and air that is pumped through the heat exchange catalyst member (10). |
| 5681538 |
Metallic monolith and plates for the assembly thereof |
October 28, 1997 |
| A monolith suitable for use as a heat exchanger or as a carrier for a catalyst member is assembled from a plurality of plates (10, 10', 410) that are mounted one atop the next. The plates are generally rectangular and define a central baffle portion (12, 412) having a pair of substan |
| 5677435 |
Heat stable monoazo red pigment compositions |
October 14, 1997 |
| Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein R and R.sub.1 are independently hydrogen, chloro, methyl or ethyl groups.A process for preparing azo pigment compositions is also disclosed.Paint, ink and plastic compositions c |
| 5672558 |
Formed compositions |
September 30, 1997 |
| A process is disclosed for the preparation of formed Group IVB metal oxide compositions suitable for use as catalyst supports which comprises: A) preparing a paste comprising (i) one or more calcined Group IVB metal oxides, (ii) at least one solvent and (iii) at least one acid; B) formin |
| 5669967 |
Pigment compositions |
September 23, 1997 |
| Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein X is a hydrocarbyl, carboxylic acid ester, sulfonic acid ester, carboxylic acid amide or sulfonic acid amide group; Y is a hydrocarbyl, halogen or hydrocarbyloxy group; Ar i |
| 5653949 |
Catalytic oxidation catalyst and method for controlling voc, CO and halogenated organic emission |
August 5, 1997 |
| A catalyst and process for treating gas streams which contain halogenated organic compounds, non-halogenated organic compounds, carbon monoxide or mixtures thereof, and particularly gas streams which contain organobromides. The catalyst comprises at least one platinum group metal, zi |
| 5645635 |
Delaminated kaolin pigments, their preparation and use in paper filling applications |
July 8, 1997 |
| This invention relates to paper filling pigments comprising novel mechanically delaminated kaolin particles having controlled narrow particle size distribution and shape. The pigments provide improved opacification compared to conventional and engineered kaolin particles in fine pape |
| 5643545 |
Catalytic method and device for controlling VOC, CO and halogenated organic emissions |
July 1, 1997 |
| A method and device for treating a gas stream comprising at least one non-halogenated carbonaceous compound and optionally at least one halogenated organic compound. The gas stream, at 100.degree. C. to 650.degree. C. and in the presence of oxygen is contacted with a first catalyst i |
| 5627124 |
Ceria-alumina oxidation catalyst |
May 6, 1997 |
| Oxidation catalyst compositions-include a catalytic material containing ceria-and alumina each having a surface area of at least about 10 m.sup.2 /g, for example, ceria and activated alumina in a weight ratio of from about 1.5:1 to 1:1.5. Optionally, platinum may be included in the c |
| 5624488 |
Ultrahigh brightness calcined clay pigment, manufacture & use thereof |
April 29, 1997 |
| A selected kaolin crude or crude fraction is purified by physical or physical/chemical means, such as froth flotation and/or selective flocculation, to remove discrete particles of TiO.sub.2 and in some cases, discrete iron minerals. The pure (or purified clay) must then be agitated |
| 5622041 |
Catalytic combustion system including a separator body |
April 22, 1997 |
| A combustor for supporting the catalytic combustion of gaseous carbonaceous fuel contains a catalyst zone in which is disposed a catalyst body comprising at least one catalyst member, a separator zone comprising a separator body and a downstream zone where homogeneous combustion occurs. |
| 5620672 |
Layered catalyst composition |
April 15, 1997 |
| A catalyst composition contains a catalytic material having having an undercoat layer containing a mixture of a fine particulate undercoat refractory metal oxide and a sol such as a silica sol, the undercoat providing good adherence to substrates, such as metal substrates, on which t |
| 5603411 |
Method for separating mixture of finely divided minerals |
February 18, 1997 |
| A selective flocculation process that uses a mixture of dispersants including soda ash to disperse a slimed ore pulp prior to conditioning with a fatty acid, salt and then a polymeric flocculating agent. |
| 5603215 |
Method and apparatus for treatment of exhaust streams |
February 18, 1997 |
| In a system for treating an exhaust stream, such as the exhaust of an internal combustion engine (10), the exhaust is initially treated by a first catalytic converter (14) and its effluent is cooled in an indirect heat exchanger (18) with an extraneous coolant fluid, i.e., one other than |
| 5597771 |
Layered catalyst composite |
January 28, 1997 |
| The present invention relates to a layered catalyst composite of the type generally referred to as a three-way conversion catalyst having the capability of substantially simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides. The |
| 5584394 |
Colored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purificati |
December 17, 1996 |
| Described is a process for separating a mixture of finely divided minerals into constituents thereof. In particular, the invention relates to a procedure for effecting such separation by a novel selective flocculation technique wherein a dispersed aqueous pulp containing the mixture of |
| 5580535 |
System and method for abatement of food cooking fumes |
December 3, 1996 |
| A method for treating cooking fumes to oxidize oxidizeable particulate and gaseous components thereof includes contacting the fumes with a catalytic material containing ceria and alumina each having a BET surface of at least about 10 m.sup.2 /g, for example, ceria and activated alumina i |
| 5578283 |
Catalytic oxidation catalyst and method for controlling VOC, CO and halogenated organic emission |
November 26, 1996 |
| A catalyst and process for treating gas streams which contain halogenated organic compounds, non-halogenated organic compounds, carbon monoxide or mixtures thereof, and particularly gas streams which contain organobromides. The catalyst comprises at least one platinum group metal, zi |
| 5559067 |
Modified microsphere FCC catalysts and manufacture thereof |
September 24, 1996 |
| An in situ process for making improved zeolitic fluid cracking catalyst by spray drying a mixture of hydrous kaolin, gibbsite and spinel, essentially free from metakaolin, calcining the resulting microspheres to convert the hydrous kaolin to metakaolin whereby the gibbsite is hydrotherma |
| 5552360 |
Substrate configuration for catalytic combustion systems |
September 3, 1996 |
| A combustor for supporting the catalytic combustion of a gaseous carbonaceous fuel/air combustion mixture contains a catalyst zone in which is disposed a catalyst body comprising at least a first and a second catalyst member and further contains a downstream zone where homogeneous co |
| 5551971 |
Particulate filter, and system and method for cleaning same |
September 3, 1996 |
| A system and related method for cleaning a particulate filter medium. The filter medium is cleaned by the input of energy to burn off particulate matter collected thereon. The system can comprise a thermocouple for monitoring the temperature of the filter medium at a plurality of loc |
| 5551239 |
Catalytic combustion system including a separator body |
September 3, 1996 |
| A combustor for supporting the catalytic combustion of gaseous carbonaceous fuel contains a catalyst zone in which is disposed a catalyst body comprising at least one catalyst member, a separator zone comprising a separator body and a downstream zone where homogeneous combustion occurs. |
| 5537934 |
Cationically stabilized slurries of calcined kaolin clay |
July 23, 1996 |
| A method for preparing high solids suspensions of calcined clay which are stable without the necessity of adding a colloidal thickening agent and have minimal dilatancy. A calcined kaolin clay pigment, substantially free of anionic dispersant, is dispersed in water by addition of alkali |
| 5535890 |
Method for separating mixture of finely divided minerals |
July 16, 1996 |
| This invention relates to a process for separating a mixture of finely divided minerals into constituents thereof. In particular, the invention relates to a procedure for effecting such separation by a novel selective flocculation technique wherein a dispersed aqueous pulp containing the |
| 5531972 |
Staged three-way conversion catalyst and method of using the same |
July 2, 1996 |
| A catalyst composition has an upstream stage and a downstream stage, the upstream stage containing a catalytic material which is different from the catalytic material contained on the downstream stage and is characterized by having a low ignition temperature, e.g., 350.degree. C. to less |
| 5527756 |
Catalyst assembly providing high surface area for nitric acid and/or HCN synthesis |
June 18, 1996 |
| A catalyst assembly is disclosed which comprises a plurality of foraminous wire mesh sheets disposed in intimate nested relation to each other along their broad surfaces, the wire sheets defining a non-planar cross-section which consists of a plurality of undulating corrugations. The bor |
| 5521133 |
Phosphorus bound porous microspheres |
May 28, 1996 |
| This invention relates to microspheres produced by spray drying clay slurries and calcining the product to form attrition resistant microspheres. Phosphoric acid is injected in a neutral to mildly alkaline dispersed high solids kaolin slurry immediately before spray drying to improve |
| 5516497 |
Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides us |
May 14, 1996 |
| A zeolite catalyst composition is provided in which a first or upstream zone of the catalyst has a lower metal (e.g., iron or copper) promoter loading than the metal promoter moter loading of the second or downstream zone of the catalyst. The first zone may contain from none up to about |
| 5509798 |
Stabilized catalyst carrier and improved carrier configuration for catalytic combustion system |
April 23, 1996 |
| A catalyst member for use in processes for the catalytic combustion of gaseous carbonaceous fuels is made from a stabilized carrier having a plurality of gas flow passages extending therethrough defined by channel walls and a catalyst material disposed on the channel walls, wherein the |
| 5493037 |
Nickel catalyst |
February 20, 1996 |
| A formed nickel catalyst useful in fixed bed hydrogenation of fatty materials is described. The catalyst comprises from about 10% to about 50% by weight of nickel and from about 3% to about 30% by weight of at least one clay mineral binder. The catalyst may also contain from about 20% to |
| 5491120 |
Oxidation catalyst with bulk ceria, a second bulk metal oxide, and platinum |
February 13, 1996 |
| Oxidation catalyst compositions include a catalytic material having a BET surface area of at least about 10 m.sup.2 /g and consisting essentially of a combination of bulk ceria and a bulk second metal oxide which may be one or more of titania, zirconia, ceria-zirconia, silica, alumina-si |
