Patent application number | Description | Published |
20090029167 | Polymer nanocomposites including dispersed nanoparticles and inorganic nanoplatelets - Nanocomposites and method of making same are provided using nanoplatelets. A nanocomposite is provided, and the nanocomposite includes nanoparticles, inorganic platelets, and a polymer material. A method is provided for dispersing nanoparticles into a polymeric material by using inorganic nanoplatelets. | 01-29-2009 |
20090035469 | DISPERSION, ALIGNMENT AND DEPOSITION OF NANOTUBES - A dispersible nanocomposite comprising nanotubes associated with nanoplatelets. A method for creating an exfoliated nanotubes solution, aligning nanotubes and depositing them on a substrate or in matrix. In one embodiment, the method includes a nanocomposite of at least one nanotube electrostatically associated with at least one nanoplatelet. The nanoplatelets may be removed from the suspension by altering the ionic strength to create an exfoliated nanotube solution. The exfoliated nanotube solution for injection into microchannel templates and aligned deposition. | 02-05-2009 |
20090105413 | WATER-SOLUBLE NANOPARTICLES WITH CONTROLLED AGGREGATE SIZES - A method of forming dispersed water-soluble quantum dots and tuning water-soluble quantum dot aggregate size by providing a plurality of water-soluble quantum dots in a dispersion, the plurality of water-soluble quantum dots are modified with an amphiphilic polymer, and by adding an amount of the amphiphilic polymer to the dispersion such that the ratio of the amphiphilic polymer units to quantum dots is maintained higher to obtain dispersions of smaller quantum dot aggregates and kept lower to obtain dispersions of larger quantum dot aggregates. | 04-23-2009 |
20100063183 | INTERCALATION AGENT FREE COMPOSITIONS USEFUL TO MAKE NANOCOMPOSITE POLYMERS - A two step method for preparing a filler composition, the filler composition useful to prepare a nanocomposite polymer. The first step is to disperse a water dispersible filler material in a liquid comprising water to form a dispersion. The second step is to replace at least a portion of the water of the liquid with an organic solvent to form the filler composition, the water concentration of the liquid of the filler composition being less than six percent by weight, the average size of at least one dimension of the filler material being less than two hundred nanometers upon examination by transmission electron microscopy of a representative freeze dried sample of the dispersion of the first step. A nanocomposite polymer can be prepared by mixing the above-made filler composition with one or more polymer, polymer component, monomer or prepolymer to produce a polymer containing a filler having an average size of at least one dimension of the filler of less than two hundred nanometers upon examination by transmission electron microscopy of a representative sample of the polymer. In addition, an epoxy resin composition useful for making a cured epoxy nanocomposite polymer, the epoxy resin composition made by a two step process. The first step is to mix an epoxy resin with the filler composition to form an epoxy resin mixture. The second step is to remove organic solvent from the epoxy resin mixture to form the epoxy resin composition. And, a nanocomposite polymer, made by the step of mixing the filler composition with one or more polymer, polymer component, monomer or prepolymer to produce a polymer containing a filler having an average size of at least one dimension of the filler of less than two hundred nanometers upon examination by transmission electron microscopy of a representative sample of the polymer. | 03-11-2010 |
20100197832 | ISOLATED NANOTUBES AND POLYMER NANOCOMPOSITES - A method for producing a nanocomposite, the nanocomposite comprises at least one nanofiller, wherein said nanofiller comprises at least one nanotube, and a medium comprising a polymeric matrix. Further, the nanotube comprises at least one exfoliated nanotube. The method comprises agglomerating at least one nanotube from a nanotube and nanoplatelet dispersion in a solvent. Additionally, the method comprises redispersing at least one nanotube in a matrix precursor solution. | 08-05-2010 |
20100249335 | Methods of producing zinc oxide polymer nanocomposites - A zinc oxide polymer nanocomposite composed of zinc oxide nanoparticles. The zinc oxide nanoparticles of the nanocomposite have an average particle size of about 1 nanometer to about 20 nanometers. Suitable polymers of the nanocomposites have less than about 500 ppm alkali metal. A process is provided for preparing the zinc oxide polymer nanocomposites comprising a) preparing a first combination comprising zinc oxide nanoparticles and a polymer; b) preparing a second combination comprising the first combination and an organic solvent; and c) precipitating the zinc oxide nanoparticles and the polymer out of the second combination. The zinc oxide nanoparticles of the first combination have an average particle size of between about 1 nanometer and about 20 nanometers. | 09-30-2010 |
20110220851 | DISPERSION OF CARBON NANOTUBES AND NANOPLATELETS IN POLYOLEFINS - A method of dispersing nanotubes and/or nanoplatelets in a polyolefin is provided, involving A) preparing a solution comprising nanotubes or nanoplatelets or both; B) stirring the resulting solution from step (A); C) dissolving at least one polymeric material in the stirred solution from step (B) and isolating precipitates from the solution; and D) melt-blending the precipitates with at least one polyolefin, along with the nanocomposites prepared thereby, and articles formed from the nanocomposites. | 09-15-2011 |
20110257299 | METAL STABILIZERS FOR EPOXY RESINS - A composition comprising: a) an epoxy resin; b) a hardener; and c) a stabilizer comprising a metal-containing compound, the metal-containing compound comprising a metal selected from the group consisting of Group 11-13 metals and combinations thereof, wherein the composition is prepared from a halogen-containing compound is disclosed. | 10-20-2011 |
20120095143 | DISPERSION AND RETRIEVAL OF DE-BUNDLED NANOTUBES - A method for dispersing nanotubes, comprising forming a nanocomposite solution with associated nanotubes and nanoplatelets, mixing a surfactant to the nanocomposite solution, separating the nanocomposite in solution, wherein the nanotubes remain suspended in the surfactant solution, and isolating the nanotubes in solution. In certain instances, the method further comprises functionalizing the nanotubes in solution. | 04-19-2012 |
20120136093 | INTERCALATION AGENT FREE COMPOSITIONS USEFUL TO MAKE NANOCOMPOSITE POLYMERS - A two step method for preparing a filler composition, the filler composition useful to prepare a nanocomposite polymer and an epoxy nanocomposite coating. First, disperse a water dispersible filler material in a liquid comprising water, but without any added intercalation agent, to form a dispersion. Second, replace at least a portion of the water of the liquid with an organic solvent so that the water concentration of the liquid is less than six percent by weight to form the filler composition, the average size of at least one dimension of the filler material being less than two hundred nanometers upon examination by transmission electron microscopy of a representative freeze dried sample of the dispersion of the first step. A nanocomposite polymer can be prepared by mixing the filler composition with one or more polymer, polymer component, monomer or prepolymer to produce a polymer containing the filler composition. | 05-31-2012 |
20140193590 | Surface-Modified, Exfoliated Nanoplatelets as Mesomorphic Structures in Solutions and Polymeric Matrices - A method of manufacturing a nanocomposite having a continuous organic phase and oligomer-modified nanoplatelet mesomorphic structures, wherein the oligomer has a molecular weight of at least 100 g/mol. | 07-10-2014 |
20150037239 | DISPERSION AND RETRIEVAL OF DE-BUNDLED NANOTUBES - A method for dispersing nanotubes, comprising forming a nanocomposite solution with associated nanotubes and nanoplatelets, mixing a surfactant to the nanocomposite solution, separating the nanocomposite in solution, wherein the nanotubes remain suspended in the surfactant solution, and isolating the nanotubes in solution. In certain instances, the method further comprises functionalizing the nanotubes in solution. | 02-05-2015 |
Patent application number | Description | Published |
20100276208 | HIGH THERMAL CONDUCTIVITY HARDFACING FOR DRILLING APPLICATIONS - A high thermal conductivity hardmetal composition comprising tungsten carbide in a nickel based matrix binder is disclosed. The hardmetal has at least 50 wt % tungsten carbide, the tungsten carbide being composed of at least 50 vol % of spherical particles. The binder material is composed of at least 98.5 wt % of components selected from the group consisting of nickel, boron, and silica, and the binder flux of boron plus silica content ranges from between 3.5 to 10.0 wt % of the binder material. | 11-04-2010 |
20120097457 | POLYCRYSTALLINE DIAMOND CUTTING ELEMENT - A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate. | 04-26-2012 |
20120152622 | In-Situ Boron Doped PDC Element - A polycrystalline diamond compact formed in an in-situ boron-doped process. The in-situ boron-doped process includes consolidating a mixture of diamond crystals and boron-containing alloy via liquid diffusion of boron into diamond crystals at a pressure greater than 5 Gpa and at a temperature greater than the melting temperature of the boron-containing alloy, typically less than about 1450° C. | 06-21-2012 |
20130020136 | High Thermal Conductivity Hardfacing - A hardmetal composition comprises tungsten carbide in an amount greater than 50 weight percent of the hardmetal composition. In addition, the hardmetal composition comprises a binder material consisting of at least 90 weight percent nickel, a binder flux between 3.5 to 10.0 weight percent chosen from the group consisting of boron and silicon, and less than 1.0 weight percent other components. | 01-24-2013 |
20130068741 | LASER HARDENED SURFACE FOR WEAR AND CORROSION RESISTANCE - A method of laser hardening comprises irradiating a surface of a component with a laser beam to form a first band of irradiated material, irradiating the surface of the component with the laser beam to form a second band of irradiated material that overlaps the first band of irradiated material, where the first band and the second band have a pitch to width ratio of between about 0.5 and about 0.78. | 03-21-2013 |
20130149182 | Reinforced Stators and Fabrication Methods - A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition, the stator comprises a stator insert coaxially disposed within the housing. The stator insert has a radially outer surface that engages the housing and a radially inner surface defining a helical-shaped through bore extending axially through the stator insert. The stator insert includes an insert body and an insert liner attached to the insert body. The insert body is radially positioned between the housing and the insert liner. The insert body comprises a reinforcement structure and a plurality of voids dispersed within the reinforcement structure. | 06-13-2013 |
20150075877 | POLYCRYSTALLINE DIAMOND CUTTING ELEMENT - A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate. | 03-19-2015 |
20150122552 | Hard-Facing for Downhole Tools and Matrix Bit Bodies with Enhanced Wear Resistance and Fracture Toughness - A composite material and a methods of making and using the composite material, wherein the composite material provides improved wear resistance and fracture toughness to hard-facing and matrix materials for down hole drilling tools. | 05-07-2015 |
20150132604 | Multilayered Coating for Downhole Tools with Enhanced Wear Resistance and Acidic Corrosion Resistance - A coating for protecting a base material from wear and corrosion includes a first layer deposited directly onto an outer surface of the base material. In addition, the coating includes a second layer deposited directly onto the first layer. The first layer is positioned between the base material and the second layer. The first layer includes chromium having a first micro-crack density and the second layer comprises chromium having a second micro-crack density that is less than the first micro-crack density. | 05-14-2015 |
20150176335 | IN-SITU BORON DOPED PDC ELEMENT - A polycrystalline diamond compact formed in an in-situ boron-doped process. The in-situ boron-doped process includes consolidating a mixture of diamond crystals and boron-containing alloy via liquid diffusion of boron into diamond crystals at a pressure greater than 5 Gpa and at a temperature greater than the melting temperature of the boron-containing alloy, typically less than about 1450° C. | 06-25-2015 |
20150233188 | Downhole Mills and Improved Cutting Structures - A drill bit for cutting through a downhole metal structure includes a bit body having a central axis and a bit face. The bit body is configured to rotate about the central axis in a cutting direction. In addition, the bit includes a cutting structure disposed on the bit face. The cutting structure includes a plurality of circumferentially spaced blades and a plurality of primary cutter elements mounted to each blade. Each primary cutter element has a forward-facing primary cutting face. Each primary cutter element is made of a whisker ceramic composite. | 08-20-2015 |
Patent application number | Description | Published |
20080228158 | Absorbent article with patterned SBS based adhesive - An SBS based construction adhesive that includes an amount of SIS adhesive to make an SBS/SIS adhesive that shows excellent shear hang time values when used to manufacture disposable absorbent articles. The SBS/SIS adhesive is applied in a spiral pattern having a particular width and frequency to form an endflap seal that may reduce the likelihood of a gel on skin occurrence. | 09-18-2008 |
20100217216 | Absorbent Article - A disposable absorbent article that includes a first and second substrate, a portion of which is joined together with a hot-melt adhesive applied at a temperature of less than 130° C. At least one of the first second substrates has a basis weight of less than 15 grams per square meter. The adhesive provides suitable bond strength on low basis weight substrates and allows for flexible processing conditions. | 08-26-2010 |
20100307668 | METHOD FOR MAINTAINING A FASTENER IN A FOLDED CONFIGURATION - A method for folding a fastener during a high speed manufacturing process and maintaining the fastener in a folded configuration throughout the high speed manufacturing process. The method includes obtaining an article that has a foldable fastener and moving the article in the machine direction during the high speed manufacturing process. The foldable fastener has first and second opposing surfaces, a web and at least one engaging member joined to the web. The method includes applying a frangible bonding agent to a first portion of the first surface of the fastening system; folding the fastening system such that the frangible bonding agent contacts a second portion of the first surface of the fastening system; and allowing the frangible bonding agent to cool at a temperature of less than 60° C. | 12-09-2010 |
20120004630 | Absorbent Article With Low Cold Flow Construction Adhesive - Absorbent articles comprising a low cold flow construction adhesive suitable for joining at least two absorbent article components together, wherein the adhesive comprises an ethylene-based polyolefin resin and certain crystallization enhancers, and wherein the absorbent articles have an in-bag compression opening force of less than about 0.75N. Also, a method for assembling such articles. | 01-05-2012 |