Showing papers by "Cabot Corporation published in 2003"

Aerogel and hollow particle binder composition, insulation composite, and method for preparing the same

Abstract: The invention provides an aerogel-hollow particle binder composition comprising an aqueous binder, hydrophobic aerogel particles, and hollow, non-porous particles, as well as an insulation composite comprising the aerogel-hollow particle binder composition, and a methods of preparing the aerogel-hollow particle binder composition and insulation composite.

Process for preparing modified pigments

Abstract: The present invention relates to a process for preparing a polymer-modified pigment comprising the step of: combining, in any order, at least one pigment having attached at least one nucleophilic group, at least one polymer comprising at least one carboxylic acid group or salt thereof, and at least one coupling agent. At least one mediator compound may also be used. The modified pigments can be used in applications such as inkjet ink applications.

Method of forming a sputtering target assembly and assembly made therefrom

Abstract: A method of forming a sputtering target assembly and the sputtering target assembly made therefrom are described. The method includes bonding a sputtering target to a backing plate at a low temperature by providing projections and grooves in the baching plate and the target and deforming the projections to at least partially fill the grooves. Also described is a method of forming a sputtering target assembly such that a gap is formed between the sputtering target and the backing plate. Also described is a method of forming a sputtering target assembly providing a mechanism to prevent unintended sputtering into the backing plate.

Process for preparing modified pigments

Abstract: A process for preparing a modified pigment having attached at least one organic group is described. This process comprises the step of reacting a dried mixture comprising a pigment having attached at least one reactive group and a modifying agent. The dried mixture is reacted under high intensity mixing conditions for a time and temperature sufficient to form the modified pigment.

Heat resistant aerogel insulation composite, aerogel binder composition, and method for preparing same

Abstract: The invention provides a heat resistant aerogel insulation composite comprising an insulation base layer comprising hydrophobic aerogel particles and an aqueous binder, and a thermally reflective top layer comprising a protective binder and an infrared reflecting agent. The invention also provides a method of preparing a heat resistant aerogel insulation composite, as well as methods of preparing an aerogel binder composition and aerogel binder compositions so prepared.

Heat resistant aerogel insulation composite and method for its preparation;aerogel binder composition and method for its preparation

Abstract: The invention provides a heat resistant aerogel insulation composite comprising an insulation base layer comprising hydrophobic aerogel particles and an aqueous binder, and a thermally reflective top layer comprising a protective binder and an infrared reflecting agent. The invention also provides a method of preparing a heat resistant aerogel insulation composite, as well as methods of preparing an aerogel binder composition and aerogel binder compositions so prepared.

Heat resistant insulation composite, and method for preparing the same

Abstract: The invention provides a heat resistant insulation composite comprising an insulation base layer comprising hollow, non-porous particles and a matrix binder, and a thermally reflective layer comprising a protective binder and an infrared reflecting agent, wherein the heat resistant insulation composite has a thermal conductivity of about 50 mW/(m.K) or less. The invention also provides a method of preparing a heat resistant insulation composite.

Dental glass powders

Abstract: Dental glass powders, methods for producing the powders and dental compositions including the glass powders. The powders preferably have a well-controlled particle size, narrow size distribution and a spherical morphology. The method includes forming the particles by a spray pyrolysis technique. The invention also includes dental filler and restorative compositions that include the glass powders.

Modified organic colorants and dispersions, and methods for their preparation

Abstract: The present invention relates to methods of preparing modified organic colorant dispersions comprising the step of combining, in any order, i) an organic colorant; ii) an hydroxide reagent; and iii) an aqueous medium, to form a modified organic colorant dispersion. The methods further comprises a particle size reduction step. These steps can occur in either order. The organic colorant comprises at least one organic species having at least one ester group. Modified organic colorants and inkjet ink compositions are also disclosed.

Fumed metal oxide particles and process for producing the same

Abstract: The invention provides a process for producing fumed metal oxide particles comprising providing a stream of a liquid feedstock comprising a volatizable, non-halogenated metal oxide precursor, providing a stream of a combustion gas having a linear velocity sufficient to atomize and combust or pyrolyze the liquid feedstock, and injecting the stream of the liquid feedstock into the stream of combustion gas to form a reaction mixture such that the liquid feedstock is atomized and subjected to a sufficient temperature and residence time in the combination gas stream for fumed metal oxide particles to form before the combustion gas temperature is reduced below the solidifying temperature of the metal oxide particle. The invention further provides fumed silica particles having a relatively small aggregate size and/or narrow aggregate size distribution.

Method of bonding sputtering target materials

Abstract: A method of forming a sputtering target is described that involves bonding a backing plate onto a casement having one or more recesses that contain target material to form a bonded target. During the bonding process, the bonded target is optionally vacuum sealed within the recess. The bonded target is then optionally annealed while under vacuum to form an annealed sputtering target. The sputtering target can then be retrieved by removing at least a portion of the casement from the sputtering target in one or several steps. Also described is a casement having one or more recesses containing bonded target material that is optionally vacuum sealed in the casement. The casement, as well as the backing plate that is optionally bonded onto the casement, are further described as well as other options and methods.

Modified pigment products and black matrixes comprising same

Abstract: The present invention describes modified pigment products comprising a pigment having attached at least one photopolymerizable group and at least one ionic or ionizable group. Dispersions, black matrixes, and resin compositions comprising these modified pigment products are also disclosed.

Method of forming metal blanks for sputtering targets

Abstract: The present invention relates to an improvement in the manufacture of metal blanks, discs, and sputtering targets by flattening only one of the two surfaces of a metal plate The elimination of flattening the metal plate's second surface results in a significant cost reduction The metal plate of the present invention preferably has a single-side flatness of 0005 inches or less, which improves the reliability of the bond between the target blank and a backing plate Preferred metals include, but are not limited to, tantalum, niobium, titanium, and alloys thereof The present invention also relates to machining the first side of a metal plate, bonding the first side to a backing plate, and then optionally machining the second side of the metal plate

Method and apparatus for filling a vessel with particulate matter

Abstract: The invention provides a method and an apparatus for filling a vessel having an internal volume with particulate matter. The method generally comprises the steps of providing a vessel having a length, width, and an internal volume, providing a supply of particulate matter, filling at least a portion of the internal volume of the vessel with the particulate matter, and repeating the aforementioned steps until the internal volume of the vessel has been filled with the desired amount of particulate matter. While the vessel is being filled with the particulate matter, the vessel also is subjected to a vibratory motion or at least one tamping motion, or the static electricity produced upon filling the vessel with the particulate matter is discharged. The apparatus generally comprises a carrier assembly, a container, and at least one of an actuating assembly, a vibrator assembly, and a static discharge assembly.

Zirconium-containing metal oxide dispersions for recording media with improved ozone resistance

Abstract: The invention provides an aqueous dispersion comprising fumed alumina particles, at least one zirconium compound, and water. The invention further provides a coating composition and a recording medium incorporating the inventive dispersion, as well as a method of preparing the recording medium.

Modified pigments, process for preparing modified pigments and ink compositions containing them

Abstract: Processes for preparing modified pigments are described. In one embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiol reagent comprising at least one -SH group and at least two ionic or ionizable groups. In a second embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiopolymer comprising at least one -Sh group. Modified pigments are also described.

Methods of providing product consistency

Abstract: The present invention relates to a method of providing product consistency of a particulate material or the product containing the same, by measuring and/or analyzing at least one interfacial potential property value of the particulate material. The method may be used as a QA/QC method to insure product consistency.

Improved energy devices

Abstract: A method for deposition of an electrocatalyst layer by dispersing electrocatalyst particles in a liquid carrier to be deposited onto a surface by a direct write tool and then heating to form electrocatalyst layer is taught. Membrane electrode assemblies being fabricated using electrocatalyst particles to form at least one of the anode or cathode of the membrane electrode assemblies is also taught.

Methods for recovering at least one metallic element from ore

Abstract: A method for recovering at least one metallic element from ore or other material is described and includes reacting ore or other material with a salt capable of recovering the metallic element from the ore or other material to form a reaction product that includes the metallic element. The method also includes recovering the metallic element from the reaction product. To remove the metallic element from the reaction product, the method can involve crushing the reaction product to form a crushed material and dissolving the crushed material in a solvent to remove the precipitates, thereby leaving a sulfate solution containing the metallic element. The method is particularly directed to the recovery of cesium from silicate- or aluminosilicate-based ore like pollucite via clinker formation by reacting the ore at elevated temperature in the presence of a metal sulfate salt.

Methods to control and/or predict rheological properties

Abstract: Methods to predict the rheological properties of composition comprising a filler in a matrix are described. The present invention further involves determining the difference between the work of cohesion and the work of adhesion for a filler and a matrix in order to quantitatively predict the rheological properties of the system, such as yield point. The ability to predict such properties has numerous advantages. The present invention further relates to a rheological master curve and a method to produce the curve which permits one to predict a rheological property of a composition comprising a filler in a matrix based on the particular polymer used and the particular filler used. Also disclosed is a method of method of choosing a filler to achieve a desired rheological property using the rheological master curve described herein.

Printing system perceptual-based gloss and gloss uniformity standard (INCITS W1.1)

Abstract: To address the standarization issues of perceptually based image quality for printing systems, ISO/IEC JTC1/SC28, the standarization committee for office equipment charactered the W1.1 project with the responsibiltiy of drafting a proposal for an international standard for the evaluation of printed image quality. One of the W1.1 task teams is charactered to address the issue of 'Gloss and Gloss Uniformity". This paper summarizes the current status and technical progress of this ad hoc team in 2003.

Controlled oxygen addition for metal material

Abstract: Methods to form metal oxide material are described. In one process, an oxide film on a metal material is diffused throughout the metal material to form a preferred uniform metal oxide material. The present invention further relates to products formed by the process. Also, the present invention relates to the use of the products in capacitor anodes and other applications.

Aerogel and hollow particle binder composition, insulation composite therewith, and method of preparation

Abstract: The invention provides an aerogel-hollow particle binder composition comprising an aqueous binder, hydrophobic aerogel particles, and hollow, non-porous particles, as well as an insulation composite comprising the aerogel-hollow particle binder composition, and a methods of preparing the aerogel-hollow particle binder composition and insulation composite

Methods to reduce hydrosulphide and arsine emissions during wet ore processing

Abstract: Methods to control hydrogen sulfide and/or arsine emissions are described. The method involves adding at least one copper compound (such as a copper (II) compound) to the material, such as material containing sulfur in a sufficient amount to control said emissions. The material that is treated with the copper compound(s) is preferably an ore, such as a valve metal containing ore, such as tantalum-bearing ore. More in particular, the method involves adding copper oxide during the digestion of Ta ore material with hydrofludic acid.