Patent application number | Description | Published |
20080268062 | STABILIZED PARTICLE DISPERSIONS CONTAINING SURFACE-MODIFIED INORGANIC NANOPARTICLES - This invention relates to particle-in-liquid dispersions containing surface-modified inorganic nanoparticles. | 10-30-2008 |
20090011293 | Selective Oxidation of Carbon Monoxide Relative to Hydrogen Using Catalytically Active Gold - The present invention provides technology for controlling, or tuning, the catalytic activity of gold provided upon nanoporous supports such as those derived from nanoparticulate, crystalline titania. In some aspects of practice, the surface of nanoparticulate media incorporated into a catalyst system of the present invention is provided with chemical modifications of the surface that dramatically suppress the ability of the resultant catalyst system to oxidize hydrogen. Yet, the system still readily oxidizes CO. In other words, by selecting and/or altering the nanoparticulate surface via the principles of the present invention, PROX catalysts are readily made from materials including catalytically active gold and nanoparticulate media. Additionally, the nanoparticulate support also may be optionally thermally treated to further enhance selectivity for CO oxidation with respect to hydrogen. Such thermal treatments may occur before or after chemical modification, but desirably occur prior to depositing catalytically active gold onto the support incorporating the nanoparticles. | 01-08-2009 |
20090054230 | CATALYST PRODUCTION PROCESS - A process for producing gold-based, heterogeneous catalyst systems comprises depositing fine-nanoscale gold onto a nanoparticulate support medium by physical vapor deposition in an oxidizing atmosphere. | 02-26-2009 |
20090215618 | ADDUCTS OF AMINES AND POLYCARBOXYLIC ACIDS, AND FILTER MEDIA COMPRISING SUCH ADDUCTS - Herein are disclosed adducts of amines and polycarboxylic acids, and methods of making such adducts. Such adducts can be used to remove cyanogen chloride. Also disclosed are methods of providing such adducts on supports to form filter media. Also disclosed are methods of combining such filter media with catalysts and/or with porous polymeric webs to form filter systems. | 08-27-2009 |
20100047142 | FILTER MEDIA INCLUDING FILTERING AGENT EFFECTIVE FOR REMOVAL OF CYANO-CONTAINING CONTAMINANTS HAVING IMPROVED COMPATIBILITY WITH AMINE SENSITIVE IMPREGNANTS AND AMINE SENSITIVE SUBSTRATES - Filter media containing an impregnant obtained by pre-reacting an amine functional material with a transition metal to form an amine-metal coordination complex. The complexed amine is much more compatible with amine sensitive co-impregnants or amine sensitive substrates. Additionally, even though the amine is complexed, the impregnant retains high activity for the removal of cyano-containing vapors and other contaminants for which amines have a filtering efficacy. Advantageously, therefore, the filter media may be used to remove cyano-containing vapors or other amine-targeted contaminants from air and other harmful gases in the presence of metal-based catalysts (such as those catalysts comprising platinum, gold or other active transition metals) without the undesirable effect of unduly inhibiting or poisoning the metal-based catalysts. The amine-containing coordination complex is also more compatible with substrates having electret characteristics as compared to otherwise identical amine material that is not complexed. | 02-25-2010 |
20100050583 | AMMONIA-FREE GASEOUS AIR FILTER - A filter for removing contaminants from air. The filter includes (a) a substrate that does not have any volatile ammonia on the surface thereof; (b) copper that has been impregnated onto the substrate; and (c) molybdenum and/or tungsten that has been impregnated onto the substrate. The filter can be made using an aqueous solution(s) that contains one or more of a first copper salt and a second salt that include a polynuclear anion that contains molybdenum, tungsten, or both. Because the metals can be impregnated onto the substrate surface without using an ammonium-based solution, the need to manage ammonia off-gassing is avoided. Further, no volatile ammonia would be present on the resulting substrate surface. | 03-04-2010 |
20100068542 | METHOD OF MAKING INORGANIC OR INORGANIC/ORGANIC HYBRID FILMS - A method for forming an inorganic or hybrid organic/inorganic layer on a substrate, which method comprises vaporizing a metal alkoxide, condensing the metal alkoxide to form a layer atop the substrate, and contacting the condensed metal alkoxide layer with water to cure the layer is disclosed. | 03-18-2010 |
20100190171 | MICROORGANISM CONCENTRATION PROCESS - A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration agent that comprises an amorphous metal silicate and that has a surface composition having a metal atom to silicon atom ratio of less than or equal to about 0.5, as determined by X-ray photoelectron spectroscopy (XPS); (b) providing a sample comprising at least one microorganism strain; and (c) contacting the concentration agent with the sample such that at least a portion of the at least one microorganism strain is bound to or captured by the concentration agent. | 07-29-2010 |
20100197481 | CATALYSTS, ACTIVATING AGENTS, SUPPORT MEDIA, AND RELATED METHODOLOGIES USEFUL FOR MAKING CATALYST SYSTEMS ESPECIALLY WHEN THE CATALYST IS DEPOSITED ONTO THE SUPPORT MEDIA USING PHYSICAL VAPOR DEPOSITION - Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support. | 08-05-2010 |
20100209961 | MICROORGANISM CONCENTRATION PROCESS AND AGENT - A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration agent that comprises diatomaceous earth bearing, on at least a portion of its surface, a surface treatment comprising a surface modifier comprising titanium dioxide, fine-nanoscale gold or platinum, or a combination thereof; (b) providing a sample comprising at least one microorganism strain; and (c) contacting the concentration agent with the sample such that at least a portion of the at least one microorganism strain is bound to or captured by the concentration agent. | 08-19-2010 |
20100221159 | LOW PRESSURE DROP, HIGHLY ACTIVE CATALYST SYSTEMS USING CATALYTICALLY ACTIVE GOLD - Highly active, low pressure drop catalyst systems. Catalytically active material is provided on at least a portion of the channel sidewalls of a body comprising one or more flow-through channels. The channel sidewalls preferably bear a charge, e.g., an electrostatic or electret charge, to help adhere the catalytically active material to the sidewall. The catalytically active material preferably includes gold provided on a particulate support, and PVD techniques are used to deposit catalytically active gold onto the support. Optionally, the gold-bearing particulates may be charged as well in a manner to facilitate attraction between the particulates and the sidewalls. | 09-02-2010 |
20100247592 | PROCESS FOR LIMITING THE GROWTH OF MICROORGANISMS - A process for limiting the growth of microorganisms comprises (a) providing an antimicrobial agent comprising fine-nanoscale gold on a support medium comprising nanoparticulate titania, the fine-nanoscale gold having been deposited on the support medium by physical vapor deposition; and (b) contacting at least one microorganism with the antimicrobial agent. | 09-30-2010 |
20100248214 | MICROORGANISM CONCENTRATION PROCESS - A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a particulate concentration agent that comprises gamma-FeO(OH); (b) providing a fluid sample comprising at least one microorganism strain; and (c) contacting the concentration agent with the sample such that at least a portion of the concentration agent is dispersed in the sample and at least a portion of the at least one microorganism strain is bound to or captured by the concentration agent. | 09-30-2010 |
20100267881 | ACICULAR BOEHMITE NANOPARTICLES - Acicular boehmite nanoparticles, methods of making acicular boehmite nanoparticles, and composite materials that contain acicular boehmite nanoparticles are described. The acicular boehmite nanoparticles are prepared in a continuous hydrothermal reactor from a feedstock solution containing a soluble aluminum-containing precursor. | 10-21-2010 |
20100273091 | Catalytically Active Gold Supported On Thermally Treated Nanoporous Supports - The present invention provides technology for controlling, or tuning, the catalytic activity of gold provided upon nanoporous supports such as those derived from nanoparticulate titania. It has been discovered that the nature of the surfaces of the nanoparticles used to support a nano-metal catalyst, such as catalytically active gold, has a profound effect upon the catalytic properties of the supported catalyst. The support surface may be altered as desired to control the activity of the gold. The present invention teaches how thermal treatment of nanoparticulate media incorporated into a nanoporous support prior to deposition of catalytically active gold dramatically suppresses the ability of a resultant catalyst system to oxidize hydrogen. Yet, the system still readily oxidizes CO. | 10-28-2010 |
20100307411 | MASKING ARTICLE FOR PRODUCING PRECISE PAINT LINES AND METHOD OF IMPROVING PAINT LINE PERFORMANCE OF MASKING ARTICLES - An adhesive masking article for shielding a protected work surface from a coating applied to a surface adjacent the protected work surface includes a backing layer having first and second opposed major surfaces, and at least one edge, an adhesive on at least a portion of at least one of the first and second backing layer opposed major surfaces, and a barrier inducing treatment on at least an edge surface of the masking article to contact the coating when the coating contacts the edge of the backing layer, thereby causing a barrier to form along the edge of the masking article that impedes the migration of the coating past the edge of the masking article beneath the masking article. | 12-09-2010 |
20110152070 | GOLD CARBON MONOXIDE OXIDATION CATALYSTS WITH ETCHED SUBSTRATE - Applicant discloses multifunctional, highly active oxidation catalysts and methods of making such catalysts. Such methods include providing nanoparticles comprising titanium-oxo and zinc-oxo compositions, such as crystalline anatase titania nanoparticles with zinc-oxo domains on their surfaces, and etching the nanoparticles. The method also includes depositing catalytically active gold onto the nanoparticles, by, for example, physical vapor deposition. | 06-23-2011 |
20110171076 | ADDUCTS OF AMINES AND POLYCARBOXYLIC ACIDS, AND FILTER MEDIA COMPRISING SUCH ADDUCTS - Herein are disclosed adducts of amines and polycarboxylic acids, and methods of making such adducts. Such adducts can be used to remove cyanogen chloride. Also disclosed are methods of providing such adducts on supports to form filter media. Also disclosed are methods of combining such filter media with catalysts and/or with porous polymeric webs to form filter systems. | 07-14-2011 |
20110280780 | CATALYSTS, ACTIVATING AGENTS, SUPPORT MEDIA, AND RELATED METHODOLOGIES USEFUL FOR MAKING CATALYST SYSTEMS ESPECIALLY WHEN THE CATALYST IS DEPOSITED ONTO THE SUPPORT MEDIA USING PHYSICAL VAPOR DEPOSITION - Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support. | 11-17-2011 |
20110280781 | HETEROGENEOUS, COMPOSITE, CARBONACEOUS CATALYST SYSTEM AND METHODS THAT USE CATALYTICALLY ACTIVE GOLD - Heterogeneous catalyst systems, methods of making these systems, and methods of using these systems, wherein catalytically active gold is deposited onto composite support media. The composite support media is formed by providing nanoporous material on at least a portion of the surfaces of carbonaceous host material. In representative embodiments, relatively fine, nanoporous guest particles are coated or otherwise provided on surfaces of relatively coarser activated carbon particles. Catalytically active gold may be deposited onto one or both of the guest or host materials either before or after the guest and host materials are combined to from the composite host material. PVD is the preferred catalyst system of depositing gold. | 11-17-2011 |
20110319257 | HIGH PERFORMANCE, HIGH DURABILITY NON-PRECIOUS METAL FUEL CELL CATALYSTS - This invention relates to non-precious metal fuel cell cathode catalysts, fuel cells that contain these catalysts, and methods of making the same. The fuel cell cathode catalysts are highly nitrogenated carbon materials that can contain a transition metal. The highly nitrogenated carbon materials can be supported on a nanoparticle substrate. | 12-29-2011 |
20120094487 | COMPOSITIONS AND METHODS FOR MODIFYING A SURFACE SUITED FOR SEMICONDUCTOR FABRICATION - The method of the present invention comprises providing a wafer including a first, second and third material; contacting the third material in the presence of a working liquid with abrasive composites fixed to an abrasive article; and moving the wafer until an exposed surface of the wafer is substantially planar and comprises at least one area of exposed third material and one area of exposed second material. The components of the working liquid include an aqueous solvent; a pH buffer exhibiting a pK | 04-19-2012 |
20130039836 | Heterogeneous, Composite, Carbonaceous Catalyst System and Methods that use Catalytically Active Gold - Heterogeneous catalyst systems, methods of making these systems, and methods of using these systems, wherein catalytically active gold is deposited onto composite support media. The composite support media is formed by providing nanoporous material on at least a portion of the surfaces of carbonaceous host material. In representative embodiments, relatively fine, nanoporous guest particles are coated or otherwise provided on surfaces of relatively coarser activated carbon particles. Catalytically active gold may be deposited onto one or both of the guest or host materials either before or after the guest and host materials are combined to from the composite host material. PVD is the preferred catalyst system of depositing gold. | 02-14-2013 |
20130045155 | Catalysts, Activating Agents, Support Media, and Related Methodologies Useful for Making Catalyst Systems Especially When the Catalyst is Deposited onto the Support Media Using Physical Vapor Deposition - Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support. | 02-21-2013 |
20130118402 | MASKING ARTICLE FOR PRODUCING PRECISE PAINT LINES AND METHOD OF IMPROVING PAINT LINE PERFORMANCE OF MASKING ARTICLES - An adhesive masking article for shielding a protected work surface from a coating applied to a surface adjacent the protected work surface includes a backing layer having first and second opposed major surfaces, and at least one edge, an adhesive on at least a portion of at least one of the first and second backing layer opposed major surfaces, and a barrier inducing treatment on at least an edge surface of the masking article to contact the coating when the coating contacts the edge of the backing layer, thereby causing a barrier to form along the edge of the masking article that impedes the migration of the coating past the edge of the masking article beneath the masking article. | 05-16-2013 |
20130309158 | CATALYSTS, ACTIVATING AGENTS, SUPPORT MEDIA, AND RELATED METHODOLOGIES USEFUL FOR MAKING CATALYST SYSTEMS ESPECIALLY WHEN THE CATALYST IS DEPOSITED ONTO THE SUPPORT MEDIA USING PHYSICAL VAPOR DEPOSITION - Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support. | 11-21-2013 |
20130309159 | Heterogeneous, Composite, Carbonaceous Catalyst System and Methods that use Catalytically Active Gold - Heterogeneous catalyst systems, methods of making these systems, and methods of using these systems, wherein catalytically active gold is deposited onto composite support media. The composite support media is formed by providing nanoporous material on at least a portion of the surfaces of carbonaceous host material. In representative embodiments, relatively fine, nanoporous guest particles are coated or otherwise provided on surfaces of relatively coarser activated carbon particles. Catalytically active gold may be deposited onto one or both of the guest or host materials either before or after the guest and host materials are combined to from the composite host material. PVD is the preferred catalyst system of depositing gold. | 11-21-2013 |
20140011253 | MICROORGANISM CONCENTRATION AGENT AND METHOD OF MAKING - A concentration agent for capture of microorganisms, including diatomaceous earth bearing, on at least a portion of its surface, a surface treatment comprising a surface modifier comprising titanium dioxide, fine-nanoscale gold or platinum, or a combination thereof, and methods for making the concentration agent. | 01-09-2014 |
20140305870 | FILTRATION MEDIUM COMPRISING A METAL-CONTAINING PARTICULATE - Described herein is a liquid filtration device is disclosed comprising a fluid conduit fluidly connecting a fluid inlet to a fluid outlet; and a water filtration medium disposed in the fluid conduit; the water filter medium comprising a metal-containing particulate, wherein the metal-containing particulate comprises a thermolysis product of a metal salt wherein the salt is selected from nitrogen-containing oxyanions, sulfur-containing anions, chlorides, phosphates, and combinations thereof; and methods of removing chloramines from aqueous solutions. | 10-16-2014 |
20140305882 | FILTRATION MEDIUM COMPRISING A METAL-CONTAINING PARTICULATE - Described herein is a liquid filtration device is disclosed comprising a fluid conduit fluidly connecting a fluid inlet to a fluid outlet; and a water filtration medium disposed in the fluid conduit; the water filter medium comprising a metal-containing particulate, wherein the metal-containing particulate comprises a thermolysis product of a metal carboxylate; and methods of removing chloramines from aqueous solutions. | 10-16-2014 |
20140319061 | FILTRATION MEDIUM COMPRISING A THERMOLYSIS PRODUCT OF A CARBON OXYCHALCOGENIDE AND A METAL SALT, METHOD OF REMOVING CHLORAMINE WITH THIS FILTRATION MEDIUM AND METHOD OF MAKING THIS FILTRATION MEDIUM - Described herein is a filtration medium comprising a substrate, wherein the substrate comprises a thermolysis product of (i) a carbon substrate having a surface of CO | 10-30-2014 |