| Patent Number |
Title Of Patent |
Date Issued |
| 6006516 |
System for reduction of harmful exhaust emissions from diesel engines |
December 28, 1999 |
| Methods and apparatus for reducing the TPM level of a diesel engine exhaust stream by providing a suitable oxidation catalyst into the exhaust train. The oxidation catalyst may be incorporated into a thermal insulative coating on the inner surface of the exhaust train, particularly the |
| 6003307 |
OBD calorimetric sensor system with offset error correction |
December 21, 1999 |
| An on-board catalytic monitoring system uses an intrusive technique to cause the vehicle's engine to cycle between first and second operating conditions. The first and second operating conditions are chosen such that different concentrations of emissions with different chemistries are |
| 6001167 |
Pigment compositions |
December 14, 1999 |
| Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein each R is independently a hydrocarbyl, hydroxy, hydrocarbyloxy, carboxylic acid, carboxylic acid ester, carboxylic acid amide, sulfonic acid, sulfonic acid amide, imidazolon |
| 6000217 |
Air injection strategies for effectively burning hydrocarbons released from a hydrocarbon trap |
December 14, 1999 |
| An exhaust gas treatment method for an exhaust system that includes a hydrocarbon trap (16) disposed upstream of a downstream catalyst zone comprising a catalyst effective at least for the oxidation of unburned hydrocarbons, in which air is added to the exhaust gas stream in an amount |
| 5997831 |
Method of catalytically treating the atmosphere and heat exchange devices produced thereby |
December 7, 1999 |
| Method of catalytically activating the surface of a heat exchange device while retaining the heat exchange properties of the device and heat exchange devices obtained thereby. |
| 5997628 |
Heat stable laked monoazo pigment compositions |
December 7, 1999 |
| Disclosed are red shade yellow compositions characterized by the formula: ##STR1## wherein X is a lower alkyl or a --COOR.sub.1 group; wherein R.sub.1 is a hydrogen or lower alkyl group; each Y is independently a lower alkyl, lower alkyloxy or halogen group; a is 0, 1, or 2; and M is |
| 5997626 |
Low abrasion calcined kaolin pigments and enhanced filtration method |
December 7, 1999 |
| A method for reducing the abrasion of a silica-containing calcined kaolin pigment by the controlled leaching of silica from the pigment, preferably by the use of a caustic solution to dissolve the silica out of the calcined kaolin. In another aspect of the invention, the brightness, |
| 5997625 |
Coating pigment for ink-jet printing |
December 7, 1999 |
| A coating pigment composition comprising a hydrous clay, a caustic leached calcined clay, and a porous mineral provides a coating having excellent balance of color intensity and color definition characteristics when printed on by multicolored inks. The pigments of this invention offer a |
| 5996337 |
Dynamic calorimetric sensor system |
December 7, 1999 |
| A calorimetric sensor system requires a vehicle's internal combustion engine to cyclically operate between first and second conditions to repeatedly produce a varying exhaust gas composition which is consistent from cycle to cycle. The rate of change of the calorimetric sensor's sign |
| 5993645 |
Catalyst for cracking oil feedstocks contaminated with metal |
November 30, 1999 |
| A calcined cracking catalyst comprising zeolite crystals in an inorganic oxide matrix and containing less than about 0.75% Na.sub.2 O and, from 0.1 to 10% P expressed as P.sub.2 O.sub.5, the cracking catalyst being further characterized by exhibiting a spectra with a peak at about 3735 c |
| 5989507 |
Catalyst composition |
November 23, 1999 |
| A catalyst composition comprising at least one first support, at least one first precious metal component, at least one second support, and at least one second precious metal component. The total amount of the first precious metal component comprises from 1 to 99 weight percent based on |
| 5989316 |
Separation of nitrogen from mixtures thereof with methane utilizing barium exchanged ETS-4 |
November 23, 1999 |
| Barium-exchanged ETS-4 shows particular utility in gas separation processes involving the separation of nitrogen from a mixture of the same with methane. |
| 5987882 |
System for reduction of harmful exhaust emissions from diesel engines |
November 23, 1999 |
| Methods and apparatus for reducing the TPM level of a diesel engine exhaust stream by providing a suitable oxidation catalyst into the exhaust train. The oxidation catalyst may be incorporated into a thermal insulative coating on the inner surface of the exhaust train, particularly the |
| 5985220 |
Metal foil having reduced permanent thermal expansion for use in a catalyst assembly, and a meth |
November 16, 1999 |
| A metal foil has improved resistance to permanent thermal expansion. This metal foil includes a metal foil substrate and a thin barrier layer on at least one surface of the metal foil substrate. The metal foil can be used in a catalyst assembly to provide a catalyst support having improv |
| 5981427 |
Catalyst composition |
November 9, 1999 |
| A catalyst composition comprising at least one first support, at least one first precious metal component, at least one second support, and at least one second precious metal component. The total amount of the first precious metal component comprises from 1 to 99 weight percent based on |
| 5977010 |
Shaped hydrogenation catalyst and processes for their preparation and use |
November 2, 1999 |
| Shaped catalyst compositions are disclosed comprising (i) at least one metal selected from the group consisting of copper, manganese, zinc, nickel, cobalt and iron, (ii) calcium silicate and (iii) at least one clay material. Also disclosed are a process for preparing the foregoing shaped |
| 5974810 |
Method and composition for preventing odors in ice |
November 2, 1999 |
| A method for producing ice having substantially no undesirable taste and odor characteristics is disclosed. |
| 5968861 |
Trimetallic zeolite catalyst and method of NO.sub.x abatement using the same |
October 19, 1999 |
| 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 |
| 5968250 |
Kaolin composition for use electrodeposition paints |
October 19, 1999 |
| Disclosed are kaolin compositions of at least one hydrous kaolin characterized by a particle size distribution where 98% of the particles are less than about 2.mu., 90% are less than about 0.5.mu. and the median particle size is less than about 0.3.mu.. Also disclosed is a process wh |
| 5967771 |
Rotary regenerative oxidizer |
October 19, 1999 |
| A system for the abatement of industrial process gases utilizes a rotary regenerative oxidizer comprised of one or more heat exchange beds, each bed comprised of a parallel, axial, and longitudinal array of heat regenerative channels that thermally and/or catalytically oxidize contam |
| 5953832 |
Method for drying a coated substrate |
September 21, 1999 |
| A method of drying a coated monolithic substrate by imposing a vacuum at one end of the substrate to draw volatilized constituents out of the channels and by delivering a gas stream through the other end of the substrate during the drying process. |
| 5951750 |
Anti-yellowing polyolefin compositions containing pearlescent pigment to prevent yellowing and m |
September 14, 1999 |
| Antioxidant-containing polyolefin compositions are provided including titanium dioxide-coated mica particles having an overcoating calcined thereon to prevent yellowing of the compositions. Reduced photo-darkening and improved densification of the pigment can also be achieved. |
| 5948723 |
Layered catalyst composite |
September 7, 1999 |
| A catalyst composition and 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 catalyst |
| 5948683 |
Catalyst for selective oxidation of unsaturated hydrocarbons and methods of making and using the |
September 7, 1999 |
| A selective catalytic material is used to catalyze selective oxidation of unsaturated hydrocarbons, e.g., olefins, in the presence of carbon monoxide. The catalytic material comprises phosphated ceria containing from 0.1 to 20, preferably from 1 to 5, percent by weight phosphate comp |
| 5948383 |
Hybrid zeolite-silica compositions |
September 7, 1999 |
| This invention relates to zeolitic molecular sieve compositions characterized by outstanding capability to complex multivalent cations, especially calcium. In particular, the invention relates to novel zeolitic molecular sieve compositions, especially those based on molecular sieves |
| 5948377 |
Catalyst composition |
September 7, 1999 |
| A catalyst composition comprising at least one first supports, at least one first precious metal component, at least one second supports, and at least one second precious metal component. The total amount of the first precious metal component comprises from 1 to 99 weight percent based o |
| 5941918 |
Automotive on-board monitoring system for catalytic converter evaluation |
August 24, 1999 |
| This invention pertains to a vehicular on-board diagnostic emission system in which the system determines whether the vehicle is continuously in compliance with regulatory emission standards by sensing only hydrocarbon and carbon monoxide emissions at a position downstream from the three |
| 5938833 |
Chemical process for fractionating mineral particles based on particle size |
August 17, 1999 |
| This invention pertains to the use of a combination of polyvalent cations, clay dispersant and high molecular weight anionic polymer to preferentially remove colloidal fines (slimes) from a kaolin slurry, leaving the remainder of the kaolin in the slurry in the form of a coherent gel |
| 5922207 |
Filter aid for clay processing |
July 13, 1999 |
| A process for filtering kaolin clay slurries in the presence of a filter aid which increases the percent solids in the filter cake, decreases the product solids in the waste filtrate, increases the rate of filtration, and yet does not interfere with redispersal of the filter cake after |
| 5919425 |
Catalyzed packing material for regenerative catalytic oxidation |
July 6, 1999 |
| Homogeneous catalytic regenerative heat transfer packing material is made by impregnating ceramic packing material with a solution of a catalyst precursor and then fixing the precursor into catalyst form. The catalyzed packing material is suitable for use in a process for the regenerativ |
| 5908708 |
Aqueous dispersion of a particulate solid having a hydrophobic outer surface and films produced |
June 1, 1999 |
| Aqueous dispersion of a particulate solid containing a low boiling organic liquid in which the particulate solid has a hydrophobic outer surface which is suitable for applying to a substrate to form a continuous hydrophobic film thereon. |
| 5906954 |
Removal of titanium atoms from titanium silicate molecular sieves |
May 25, 1999 |
| This invention relates to the preparation of novel titanium silicate molecular sieves with modified properties such as adsorption, ion-exchange and catalytic behavior by selective extraction of framework titanium atoms after synthesis of the sieves. |
| 5898014 |
Catalyst composition containing oxygen storage components |
April 27, 1999 |
| The present invention relates to a zirconium, rare earth containing composition comprising zirconium, cerium, neodymium and praseodymium components and the use of this composition in a catalyst composition useful for the treatment of gases to reduce contaminants contained therein and |
| 5895636 |
Catalytic compositions and methods for suppression of halogenation of organic compounds with oxi |
April 20, 1999 |
| Methods and chemical compositions for treating a gas stream comprising non-halogenated and halogenated organic compounds while suppressing halogenation of the non-halogenated organic compounds with the oxidation products of the halogenated organic compounds in the gas stream are disc |
| 5891411 |
Method for purifying exhaust from wood manufacturing processes |
April 6, 1999 |
| A method for the abatement of contaminant-laden process emissions produced by various wood manufacturing processes comprises the step of flowing the emissions through an oxidation catalyst located in a regenerative catalytic oxidizer to remove volatile organic compounds (VOC's), methanol |
| 5889162 |
Strong green-shade yellow disazo pigment |
March 30, 1999 |
| In one embodiment, the present invention relates to a green shade yellow pigment composition comprising a compound having the formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, halogen, an alkyl group having 1 to about 4 carbon atoms, an alkoxy group having 1 t |
| 5888464 |
Catalyst composition containing an intimately combined cerium-zirconium oxide |
March 30, 1999 |
| A catalytic material effective for the reduction of NO.sub.x and the oxidation of at least carbon monoxide includes an oxygen storage component that provides superior oxygen storage function. The oxygen storage component includes an intimately combined mixed oxides including cerium, |
| 5885342 |
Blended nacreous pigments, colorants and adjuvants |
March 23, 1999 |
| Colored lustrous pigments of superior quality are prepared by dry blending a metal oxide-coated mica nacreous pigment and a colorant lake with a blend adjuvant. The resulting blend exhibits a well dispersed, stable coloration, increased hydrophobicity and is particularly useful in co |
| 5883035 |
Mesoporous silicoaluminate products and production thereof by controlled acid extraction of alum |
March 16, 1999 |
| Disclosed is a process of making mesoporous silico-aluminates from calcium bentonite by controlled extraction of octahedral aluminum under mild condition, by acid, preferably phosphoric acid. The mesoporous silicoaluminates contain only tetrahedral aluminum as the residual aluminum. |
| 5874057 |
Lean NO.sub.x catalyst/trap method |
February 23, 1999 |
| A NO.sub.x abatement composition comprises a NO.sub.x abatement catalyst and a NO.sub.x sorbent material which are dispersed in proximity to, but segregated from, each other on a common refractory carrier member (10). The NO.sub.x sorbent material comprises a basic oxygenated metal compo |
| 5871347 |
Rotary regenerative oxidizer |
February 16, 1999 |
| A system for the abatement of industrial process gases utilizes a rotary regenerative oxidizer comprised of one or more heat exchange beds, each bed comprised of a parallel, axial, and longitudinal array of heat regenerative channels that thermally and/or catalytically oxidize contam |
| 5866210 |
Method for coating a substrate |
February 2, 1999 |
| A method for coating a substrate having a plurality of channels with a coating media in which the substrate is partially immersed into a vessel containing a bath of the coating media with the volume of coating media lying above the end of the immersed substrate being sufficient to coat t |
| 5863851 |
Combustion catalysts containing binary oxides and processes using the same |
January 26, 1999 |
| A catalyst composition containing one or more binary oxides of palladium and rare earth metal such as Ce, La, Nd, Pr and/or Sm. The catalyst composition is used for the catalytic combustion of gaseous combustion mixtures of oxygen and carbonaceous fuels such as methane, e.g., a natural |
| 5856603 |
Process for the production of cyclohexane |
January 5, 1999 |
| The invention is directed to a process for the production of cyclohexane by catalytic hydrogenation of benzene using hydrogen, said process comprising the hydrogenation of benzene in the presence of a supported nickel catalyst having a nickel content of at least 10 wt. %, calculated as |
| 5849256 |
Method for oxidizing carbon monoxide in a gas stream containing oxidizable sulphur compounds |
December 15, 1998 |
| A method for oxidizing carbon monoxide in a waste gas stream that also contains sulfur dioxide is carried out by contacting the waste gas stream under oxidizing conditions with an oxidation catalyst which is effective for promoting the oxidation of carbon monoxide but produces less sulfu |
| 5846495 |
Structure for converter body |
December 8, 1998 |
| There is provided an improved converter body formed of thin metal core elements and a housing. The thin metal core elements have a distal end and a proximal end The distal ends are secured to the housing, and at least some, preferably all, of the proximal ends are free of attachment to a |
| 5827577 |
Method and apparatus for applying catalytic and/or adsorbent coatings on a substrate |
October 27, 1998 |
| Methods and apparatus are disclosed for imprinting a catalyst and/or adsorbent composition on a flat or corrugated substrate. The coated substrate is useful in pollutant treating devices to remove pollutants from a gas. |
| 5824144 |
Powder coating composition and method |
October 20, 1998 |
| A pigment in the form of metallic platelets is mixed with a sticky viscous liquid. The resulting pigment can be combined with a powdery film-forming polymer to produce a film-forming composition which can be applied by electrostatic coating. |
| 5820835 |
Assembly and method for making catalytic converter structure |
October 13, 1998 |
| A catalytic converter is constructed by assembling a plurality of non-nestable foil leaves, each having opposite proximal and distal ends defining a leaf length. The proximal ends of the foil leaves are interconnected to provide a continuous flexible strip of overlapping foil leaves |
| 5804155 |
Basic zeolites as hydrocarbon traps for diesel oxidation catalysts |
September 8, 1998 |
| The present invention relates to a composition comprising at least one zeolite consisting essentially of the zeolites selected from the group of neutral and basic zeolites and at least one platinum group metal component. This composition has been found to be useful in a method of tre |
