Showing papers by "Cabot Corporation published in 2004"

Reaction of carbon black with diazonium salts, resultant carbon black products and their uses

Abstract: Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon black in a protic reaction medium. Carbon black products which may be prepared according to process of the invention are described as well as uses of such carbon black products in plastic compositions, rubber compositions, paper compositions, and textile compositions.

Copper powders methods for producing powders and devices fabricated from same

Abstract: Copper metal powders, methods for producing copper metal powders and products incorporating the powders. The copper metal powders have a small particle size, narrow size distribution and a spherical morphology. The method includes forming the metal particles in a continuous manner.

Chemical-mechanical planarization slurries and powders and methods for using same

Abstract: Chemical-mechanical planarization slurries and methods for using the slurries wherein the slurry includes abrasive particles The abrasive particles have a small particle size, narrow size distribution and a spherical morphology and the particles are substantially unagglomerated

Powder metallurgy sputtering targets and methods of producing same

Abstract: A method of forming a sputtering target and other metal articles having controlled oxygen and nitrogen content levels and the articles so formed are described. The method includes surface-nitriding a deoxidized metal powder and further includes consolidating the powder by a powder metallurgy technique. Preferred metal powders include, but are not limited to, valve metals, including tantalum, niobium, and alloys thereof.

Fuel reformer catalyst and absorbent materials

Abstract: Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials and catalyst materials and methods for using the materials. The materials can be fabricated by spray processing. The use of the materials in AER can produce a H2 product gas having a high H2 content and a low level of carbon oxides.

Insulated panel and glazing system comprising the same

Abstract: The invention provides a translucent glazing panel comprising: (a) a thermoplastic panel comprising (i) an outer wall having an inner surface defining an internal channel, the internal channel having an internal volume, and (ii) at least one inner wall protruding from the inner surface into the internal channel, and (b) hydrophobic aerogel particles, the hydrophobic aerogel particles being disposed within the channel. The invention also provides an insulated glazing system comprising: (a) a first U-shaped element, (b) a second U-shaped element, the first and second elements being disposed to define a cavity therebetween, and (c) an insulating panel disposed within the cavity. The insulated glazing system can further comprise hydrophobic aerogel particles disposed within the internal channel of the insulating panel. The insulating panel of the glazing system also can be the same as the translucent glazing panel described herein.

Thermography test method and apparatus for bonding evaluation in sputtering targets

Abstract: A method and apparatus for thermographically evaluating the bond integrity of a sputtering target assembly is described. The method includes applying a heating or cooling medium or energy to one surface of the assembly and acquiring a graphic recording of a corresponding temperature change on the opposing surface of the assembly using an imaging device. Also described is a method of mathematically analyzing the pixel data recorded in each frame to produce an integrated normalized temperature map that represents the bond integrity of the assembly.

Coated nickel-containing powders, methods and apparatus for producing such powders and devices fabricated from same

Abstract: Nickel powder batches including coated nickel-containing particles and methods for producing the same. The coated nickel-containing particles having have a small particle size, narrow size distribution and a spherical morphology. The present invention is also directed to devices incorporating the coated nickel-containing particles.

Particulate absorbent materials and methods for making same

Abstract: Solid absorbent materials that are useful for absorption of chemical species from a fluid, such as a gas stream or a liquid stream. The absorbent materials are formed by spray processing and posses a well-defined chemical composition and microstructure. The absorbent materials can have a high absorption capacity for a chemical species such as H2S, CO2, NOX and H2 and have a high recylability, such that the chemical species can be absorbed and desorbed over a large number of cycles.

Glass powders, methods for producing glass powders and devices fabricated from same

Abstract: Glass powders and methods for producing glass powders. The powders preferably have a small particle size, narrow size distribution and a spherical morphology. The method includes forming the particles by a spray pyrolysis technique. The invention also includes novel devices and products formed from the glass powders.

Coated copper-containing powders, methods and apparatus for producing such powders, and copper-containing devices fabricated from same

Abstract: Copper powder batches including coated copper-containing particles and methods for producing the same. The coated copper-containing particles having have a small particle size, narrow size distribution and a spherical morphology. The present invention is also directed to devices incorporating the coated copper-containing particles.

Methods of making a niobium metal oxide and oxygen reduced niobium oxides

Abstract: Methods to at least partially reduce a niobium oxide are described wherein the process includes mixing the niobium oxide and niobium powder to form a powder mixture that is then heat treated to form heat treated particles which then undergo reacting in an atmosphere which permits the transfer of oxygen atoms from the niobium oxide to the niobium powder, and at a temperature and for a time sufficient to form an oxygen reduced niobium oxide. Oxygen reduced niobium oxides having high porosity are also described as well as capacitors containing anodes made from the oxygen reduced niobium oxides.

Soft-focus cosmetic composition comprising fumed alumina

Abstract: A soft-focus cosmetic composition comprising about 3 wt. % or more fumed alumina particles, a method of enhancing the soft-focus effect of a cosmetic composition comprising combining the cosmetic composition with about 3 wt. % or more fumed alumina particles, and a method for disguising skin imperfections, which method comprises applying a cosmetic composition to the skin, wherein the cosmetic composition comprises about 3 wt. % or more fumed alumina particles.

Coated silver-containing particles, method and apparatus of manufacture, and silver-containing devices made therefrom

Abstract: Provided are silver-containing powders and a method and apparatus for manufacturing the silver-containing particles of high quality, of a small size and narrow size distribution. An aerosol is generated from liquid feed and sent to a furnace, where liquid in droplets in the aerosol is vaporized to permit formation of the desired particles, which are then collected in a particle collector. The aerosol generation involves preparation of a high quality aerosol, with a narrow droplet size distribution, with close control over droplet size and with a high droplet loading suitable for commercial applications.

Methods of preparing aqueous colored pigment dispersions, and inkjet ink compositions

Abstract: The present invention describes methods for preparing aqueous colored pigment dispersions comprising the step of combining, in any order, a) a colored pigment, b) an azo coupler, c) an aromatic amine, d) a diazotizing agent, and e) an aqueous medium, wherein the aromatic amine comprises as least one ionic group, at least one ionizable group, or a mixture of at least one ionic group and at least one ionizable group. These colored pigment dispersions are particularly useful as an inkjet ink composition. Also disclosed are inkjet ink compositions comprising a) a liquid vehicle, b) a colored pigment, and c) a dispersant having the formula: D-N═N-AC, wherein AC is an azo coupling component and D is a diazo component comprising at least one ionic group, at least one ionizable group, or a mixture of at least one ionic group or ionizable group.

A method of forming sputtering target assembly and assemblies made therefrom

Abstract: A method of forming a sputtering target assembly is described that involves explosively bonding a target grade plate and a backing plate member to form a bonded preform having dimensions such that a large target or several target assemblies can be obtained. The method includes partitioning the bonded preform into a plurality of sputtering target assemblies. An interlayer can optionally be disposed between the target grade plate and the backing plate member before bonding. A bond quality test sample can be produced by the method. The sputtering target assemblies, the bonded preform, and the bond quality test sample are further described.

Tantalum powders and methods of producing same

Abstract: Methods of forming tantalum powders and other valve metal powders are described. The method involves high impact milling a starting powder in a fluid medium and optionally a milling media using a high energy mill. The methods of the present invention have the ability to reduce DC leakage and/or increase capacitance capabilities of valve metal powders when formed into capacitor anodes. The methods of present invention further reduce the milling time necessary to form high surface area valve metal powders and leads to reducing contaminant levels in the valve metal powders. The process is particularly well-suited for forming metal flakes, such as tantalum or niobium flakes, of high purity.

Method of forming sputtering acticles by multidirectional deformation

Abstract: A method of producing a valve metal mill form having dimensions sufficient to be divided to form a plurality of sputter targets is described. The method includes multidirectional deformation of an ingot to form a mill form having a preferred average grain size of about 100 microns or less and/or a texture substantially void of textural bands.

High integrity sputtering target material and method for producing bulk quantities of same

Abstract: A method of making metal plates as well as sputtering targets is described. In addition, products made by the process of the present invention are further described. The present invention preferably provides a product with reduced or minimized marbleizing on the surface of the metal product which has a multitude of benefits.

Methods of selecting and developing a particulate material

Abstract: The present invention relates to a method of selecting and/or developing particulate material for a composition comprising the particulate material and a matrix by using at least one homogeneous interaction parameter alone or in combination with at least one heterogeneous interaction parameter. These parameters may comprise at least one interfacial potential property value, at least one value derived from an interfacial potential property value, at least one component of an interfacial potential property value, or combinations thereof for a particulate material and for the matrix. Process and performance maps, as well as methods for mapping, are also disclosed.

A method of forming sintered valve metal material

Abstract: Methods of forming sintered valve metal are described. The methods involve sintering a valve metal such as tantalum or niobium in the presence of an iodine source. The method optionally includes deoxidizing the metal using the same equipment used in sintering and/or as a combined step. The sintered valve metal formed by the methods of the present invention preferably has relatively large pores and other properties desirable for making capacitors that have high capacitance and low leakage.

Particulate absorbent materials

Abstract: Solid absorbent materials that are useful for absorption of chemical species from a fluid, such as a gas stream or a liquid stream. The absorbent materials are formed by spray processing and posses a well-defined chemical composition and microstructure. The absorbent materials can have a high absorption capacity for a chemical species such as H 2 S, CO 2 , NO x , and H 2 and have a high recylability, such that the chemical species can be absorbed and desorbed over a large number of cycles.

Inkjet inks and methods of preparing the same

Abstract: Inkjet ink compositions comprising a liquid vehicle and a modified azo pigment are described. The modified azo pigment comprises the reaction product of at least one diazonium reagent and at least one azo coupler. At least one of the diazonium reagents and/or azo couplers may comprise at least one ionic group, ionizable group, or mixture thereof or at least one alkylene oxide group. The inkjet ink composition does not include a separate dispersant which primarily functions to obtain or maintain stability of the modified azo pigment or the ink jet ink composition. Methods of preparing the inkjet ink compositions are also described.

Aqueous coating compositions

Abstract: The present invention relates to a dispersant composition comprising at least one non-ionic surfactant and at least one polymer comprising at least one salt of a carboxylic acid group Also disclosed are pigment compositions and aqueous coating compositions comprising the dispersant composition

Methods for preparing aqueous colored pigment dispersions, and inkjet ink compositions

Abstract: The present invention describes methods for preparing aqueous colored pigment dispersions comprising the step of combining, in any order, a) a colored pigment, b) an azo coupler, c) an aromatic amine, d) a diazotizing agent, and e) an aqueous medium, wherein the aromatic amine comprises as least one ionic group, at least one ionizable group, or a mixture of at least one ionic group and at least one ionizable group These colored pigment dispersions are particularly useful as an inkjet ink composition Also disclosed are inkjet ink compositions comprising a) a liquid vehicle, b) a colored pigment, and c) a dispersant having the formula: D-N=N-AC, wherein AC is an azo coupling component and D is a diazo component comprising at least one ionic group, at least one ionizable group, or a mixture of at least one ionic group or ionizable group

Method for making a film from silver-containing particles

Abstract: Provided are silver-containing powders and a method and apparatus for manufacturing the silver-containing particles of high quality, of a small size and narrow size distribution. An aerosol is generated from liquid feed and sent to a furnace, where liquid in droplets in the aerosol is vaporized to permit formation of the desired particles, which are then collected in a particle collector. The aerosol generation involves preparation of a high quality aerosol, with a narrow droplet size distribution, with close control over droplet size and with a high droplet loading suitable for commercial applications.

Method of producing membrane electrode assemblies

Abstract: Compositions and methods for the manufacture of electrodes for fuel cells. The compositions and methods are particularly useful for the manufacture of anodes and cathodes for proton exchange membrane fuel cells, particularly direct methanol fuel cells. The methods can utilize direct-write tools to deposit ink compositions and form functional layers of a membrane electrode assembly having controlled properties and enhanced performance.

Thermography test method and apparatus for evaluating a bond interface of a sputtering target/backing plate assembly

Abstract: A method and apparatus for thermographically evaluating the bond integrity of a sputtering target assembly is described. The method includes applying a heating or cooling medium or energy to one surface of the assembly and acquiring a graphic recording of a corresponding temperature change on the opposing surface of the assembly using an imaging device. Also described is a method of mathematically analyzing the pixel data recorded in each frame to produce an integrated normalized temperature map that represents the bond integrity of the assembly.

Non-aqueous coating compositions

Abstract: The present invention relates to a dispersant composition comprising at least one anionic surfactant and at least one polymer comprising at least one salt of a carboxylic acid group. Also disclosed are pigment compositions and non­aqueous coating compositions comprising the dispersant composition.

Device and method for collecting borehole samples

Abstract: A device and method for collecting borehole samples includes a receptacle having an inlet adapted to engage with a casing positioned in a drill hole, and at least one outlet through which a borehole sample exits from the receptacle. The receptacle is adapted to fit around a drill rod used in drilling the drill hole with the inlet providing clearance for the drill rod and the receptacle adapted to capture cuttings and cutting fluid entering the receptacle through the inlet during a drilling operation.