| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 252570000 | FLUENT DIELECTRIC | 28 |
| 20100059725 | Reformer distillate as gassing additive for transformer oils - This invention relates to reformer distillates as gassing additives for transformer oils. The reformer distillates have a 1-ring and 2-ring aromatics content of at least 98%, and are added such that the transformer oil contains less than 10 wt % of reformer distillate. The invention also relates to a method for preparing transformer oils containing reformer distillates and having excellent gassing tendency, oxidative stability, viscosity and volatility. | 03-11-2010 |
| 20110089382 | METHODS AND SYSTEMS FOR MONITORING AND CONTROLLING SURFACTANT CONCENTRATION IN LIQUID CRYSTAL COLLOIDAL DISPERSIONS - There are provided methods and systems for precisely controlling the surfactant concentration and character of ferroelectric nanoparticles in a ferroelectric liquid crystal dispersion. In an aspect, the invention provides an efficient FTIR technique to characterize the status and measure the distribution of the surfactant in ferroelectric particle dispersion. This allows for establishing a reproducible fabrication process for ferroelectric nanoparticle liquid crystal dispersions. The methods also maintain the nanoparticles ferroelectricity, which is provided by the addition of surfactant during a comminution process. The invention therefore optimizes both the milling time (to achieve small particle size and narrow size distribution) and surfactant concentration (to maintain the ferroelectricity during milling). | 04-21-2011 |
| 252571000 | Gaseous or gas-containing | 2 |
| 20100320428 | GASEOUS DIELECTRICS WITH LOW GLOBAL WARMING POTENTIALS - A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about −20° C. to about −273° C.; non-ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of formation (dHf<0); a toxicity level such that when the dielectric gas leaks, the effective diluted concentration does not exceed its PEL; and a dielectric strength greater than air. | 12-23-2010 |
| 20120280189 | PERFLUOROKETONES AS GASEOUS DIELECTRICS - A gaseous dielectric comprising a perfluoroketone of the formula R | 11-08-2012 |
| 252572000 | Metal- or insoluble component-containing; e.g., slurry, grease, etc. | 7 |
| 20130069022 | POLARIZABLE NANOPARTICLES AND ELECTRORHEOLOGICAL FLUID COMPRISING SAME - An electrorheological fluid comprises a nanoparticle composition comprising a nanoparticle, uncoated or coated with a polymeric or metallic coating and covalently bonded to or coated on a surface of a polymeric or inorganic particle; and a dielectric fluid having a dielectric constant lower than that of the nanoparticle composition. A nanoparticle composition also comprises a carbon-based nanoparticle, covalently bonded to or coated on a surface of a conjugated polymer particle or inorganic particle, wherein the nanoparticle composition is a dielectric material. | 03-21-2013 |
| 20090152513 | POLAR MOLECULE DOMINATED ELECTRORHEOLOGICAL FLUID - Polar molecules dominated electrorheological fluids mainly comprising a mixture of dispersed phase of solid particles and/or dispersing liquid medium. The dispersed phase solid particles, on the surface, or the liquid dispersing medium contain polar molecules or polar groups, the dipole moment of which is 0.5-10 deb and the size is between 0.1 nm and 0.8 nm. Dispersed phase solid particles are spherical or nearly spherical, of which the size is 10-300 nm and dielectric constant is higher than 50. The conductance rate of the liquid dispersing medium is lower than 10 | 06-18-2009 |
| 20110198545 | INSULATING COMPOSITION AND METHOD FOR MAKING THE SAME - A method is provided that includes providing a resin in liquid form. The resin can be partially cured, and subsequent to partially curing the resin, the resin can be mixed with filler particles. The resin and filler particles can be mixed, say, in a planetary mixer, and can be exposed to an ambient pressure less than atmospheric pressure during mixing. Subsequent to mixing the resin and filler particles, the resin can be fully cured. The fully-cured resin can be disposed between first and second conductive components configured to be maintained at different potentials, such as between a phase conductor and a ground conductor. | 08-18-2011 |
| 20110079756 | POLYMER-ENCAPSULATED NANOPARTICLE SYSTEMS - A polymer-encapsulated nanoparticle system includes a non-aqueous medium; and polymer-encapsulated nanoparticles formed in situ in the non-aqueous medium. Each polymer-encapsulated particle has a diameter that is less than 1 micron, and includes a solid particle core, and a polymer coating established directly on the solid particle core. | 04-07-2011 |
| 20100096601 | Molecules with complexing groups for aqueous nanoparticle dispersions and uses thereof - Stable dispersions of nanoparticles and microparticles in liquids and method for their preparation are disclosed. The dispersions can comprise about 0.1 wt % to about 25 wt % of at least one disodium salt monohydrate of 4-5-dihydroxy-1,3 benzenedisulfonic acid; about 1 wt % to about 90 wt % of particles; and about 10 wt % to about 90 wt % of at least one liquid. The particles can comprise nanoparticulate metals, metal oxides, silica and coated particles. The liquid can comprise at least one polar liquid. | 04-22-2010 |
| 20110084240 | Variable Resistance Materials with Superior Data Retention Characteristics - Variable resistance memory compositions and devices exhibiting superior data retention characteristics at elevated temperature. The compositions are composite materials that include a variable resistance component and an inert component. The variable resistance component may include a phase-change material and the inert component may include a dielectric material. The phase-change material may include Ge, Sb, and Te, where the atomic concentration of Sb is between 3% and 16% and/or the Sb/Ge ratio is between 0.07 and 0.68 and/or the Ge/Te ratio is between 0.6 and 1.1 and/or the concentration of dielectric component (expressed as the sum of the atomic concentrations of the constituent elements thereof) is between 5% and 50%. The compositions exhibit high ten-year data retention temperatures and long data retention times at elevated temperatures. | 04-14-2011 |
| 20120161085 | High Fire-Point Esters as Electrical Insulating Oils - Provided is an electrical insulating oil formulation comprising at least one diester or triester species having ester links on adjacent carbons, and an anti-oxidant additive. The formulation exhibits an excellent balance of the pour point, viscosity and fire point properties, and is imminently suitable for use as a transformer oil. | 06-28-2012 |
| 252573000 | Si-containing | 1 |
| 20100314590 | COMPOSITION AND METHOD FOR LOW TEMPERATURE CHEMICAL VAPOR DEPOSITION OF SILICON-CONTAINING FILMS INCLUDING SILICON CARBONITRIDE AND SILICON OXYCARBONITRIDE FILMS - Silicon precursors for forming silicon-containing films in the manufacture of semiconductor devices, such as films including silicon carbonitride, silicon oxycarbonitride, and silicon nitride (Si | 12-16-2010 |
| 252574000 | B-, P-, S-, Se-, or Te-containing | 4 |
| 20100108956 | ELECTROMAGNETIC WAVE SHIELDING MATERIAL AND SHEET - An electromagnetic wave shielding material and a sheet using the same are described. Also described is a gel state electromagnetic wave shielding material including an ionic liquid, and fine particles capable of reflecting, suppressing or absorbing an electromagnetic wave suspended in the ionic liquid. The electromagnetic wave shielding material may provide both high electromagnetic interference shielding ability and flexibility when used in sheet form, and in some applications, may provide flame and heat resistance. | 05-06-2010 |
| 20100065792 | BIODEGRADABLE DIELECTRIC FLUID - The present invention belongs to the field of dielectric fluids for electric systems, it specifically relates to a biodegradable dielectric fluid that is highly resistant to oxidation consisting of an oil or a mixture of vegetable oils with a very high oleic acid content which substantially conserve all their natural tocopherols and containing a metal deactivator, as well as to its use for insulating and cooling electrical equipment. | 03-18-2010 |
| 20090001330 | Electrical Insulating Oil Compositions and Preparation Thereof - An electrical insulating oil composition is prepared from an isomerized base oil. The electrical insulating oil composition in one embodiment exhibits excellent sulphur corrosion protection property with a sulphur level of <5 ppm; excellent gassing tendency of <30 μL per minute as measured according to ASTM D-2300-1976, and a rotary pressure vessel oxidation stability (RPVOT) value of at least 400 minutes as measured according to ASTM D 2272-02. | 01-01-2009 |
| 20090278096 | A METHOD OF TREATING AN ELECTRICALLY INSULATING OIL - A method of treating an electrically insulating oil, wherein the oil includes at least one reactive organic sulphur compound. A chemical agent causing a reaction with the reactive organic sulphur compound is added to the oil. The chemical agent includes an elementary halogen or a halogen compound. | 11-12-2009 |
| 252578000 | O-containing | 12 |
| 20110291059 | DIELECTRIC FLUID COMPOSITION CONTAINING VEGETABLE OILS AND FREE OF ANTIOXIDANTS - A dielectric fluid composition containing of 60% to 63% in weight of mono-unsaturated fatty acid, of 20% to 23% in weight of di-unsaturated fatty acid, of 5% to 7% in weight of tri-unsaturated fatty acid, and of 6% to 8% in weight of saturated fatty acid, such that the dielectric fluid is free of antioxidants and/or external additives and has the following properties: a dielectric strength of 40 kV to 70 kV at a separation of 2 mm, a dielectric constant of 2.5 to 3.1 at 25° C., and a dissipation factor of 0.05% to 0.15% at 25° C. The dielectric fluid composition can be obtained by a combination of 95.5% to 99.25% in weight of at least one high oleic vegetable oil, of 0.25% to 1.5% in weight of grape seed oil, of 0.25% to 1.5% in weight of sesame seed oil, and of 0.25% to 1.5% in weight of rice bran oil. | 12-01-2011 |
| 20080283803 | Vegetable oil dielectric fluid composition - An electrical device having therein a dielectric fluid composition, wherein the dielectric fluid composition includes at least one refined, bleached and deodorized vegetable oil and at least one antioxidant, wherein the dielectric fluid composition has a pour point of less than about −20° C. as measured according to either of ASTM D97 or ASTM D5950. | 11-20-2008 |
| 252579000 | Carboxylic acid ester | 10 |
| 20110204302 | Vegetable Oil of High Dielectric Purity, Method for Obtaining Same and Use in an Electrical Device - A dielectric high purity vegetable oil—free from antioxidants and/or external additives to be used in electric equipment such as transformers, as isolating element and as cooling means and a method for obtaining the same in which the dielectric high purity vegetable oil—is obtained by means of the optimization of the bleaching steps—and deodorizing—from the Refining process—known as Modified Caustic Refining Long-Mix (RBD). | 08-25-2011 |
| 20090194748 | ADDITIVE FOR DIELECTRIC FLUID - A dielectric fluid comprising hydrocarbon liquid admixed with an ester-based compound, wherein the ester-based compound is present in an effective amount to impart breakdown inhibiting properties to a paper insulation material when the dielectric fluid is in contact with the paper material. | 08-06-2009 |
| 20130099182 | LIQUID COMPOSITIONS USED AS INSULATING AND HEAT TRANSFER MEANS, ELECTRICAL DEVICES CONTAINING SAID COMPOSITIONS AND PREPARATION METHOD FOR SUCH COMPOSITIONS - The invention relates to a liquid composition that is a mixture of at least one natural triglyceride and at least one fatty acid ester different from triglycerides, wherein the fatty acids are derived from at least one vegetable oil or another equivalent natural resource. | 04-25-2013 |
| 20100243969 | DIELECTRIC HEAT-TRANSFER FLUID - Provided is a use of a vegetable oil high in monounsaturates as dielectric and heat-transfer fluid in a device for the generation, storage, conversion and/or distribution of electrical energy. | 09-30-2010 |
| 20100308283 | ELECTRICAL INSULATION FLUIDS FOR USE IN ELECTRICAL APPARATUS - Insulation fluids comprising polytrimethylene ether glycol esters are provided. The insulation fluids can be used in electrical apparatuses. | 12-09-2010 |
| 20110012071 | ADDITIVE FOR DIELECTRIC FLUID - A dielectric fluid comprising hydrocarbon liquid admixed with an ester-based compound, wherein the ester-based compound is present in an effective amount to impart breakdown inhibiting properties to a paper insulation material when the dielectric fluid is in contact with the paper material. | 01-20-2011 |
| 20090121200 | Electrical Insulation Fluids for Use in Electrical Apparatus - Insulation fluids comprising polytrimethylene ether glycol esters are provided. The insulation fluids can be used in electrical apparatuses. | 05-14-2009 |
| 20120056138 | VEGETABLE OIL OF HIGH DIELECTRIC PURITY, METHOD FOR OBTAINING SAME AND USE IN AN ELECTRICAL DEVICE - A dielectric high purity vegetable oil—free from antioxidants and/or external additives to be used in electric equipment such as transformers, as isolating element and as cooling means and a method for obtaining the same in which the dielectric high purity vegetable oil—is obtained by means of the optimization of the bleaching steps—and deodorizing—from the Refining process—known as Modified Caustic Refining Long-Mix (RBD). | 03-08-2012 |
| 20120061629 | VEGETABLE OIL OF HIGH DIELECTRIC PURITY, METHOD FOR OBTAINING SAME AND USE IN AN ELECTRICAL DEVICE - A dielectric high purity vegetable oil—free from antioxidants and/or external additives to be used in electric equipment such as transformers, as isolating element and as cooling means and a method for obtaining the same in which the dielectric high purity vegetable oil—is obtained by means of the optimization of the bleaching steps—and deodorizing—from the Refining process—known as Modified Caustic Refining Long-Mix (RBD). | 03-15-2012 |
| 20130015415 | DIELECTRIC FLUIDS COMPRISING ESTOLIDE COMPOUNDS AND METHODS OF MAKING AND USING THE SAME - Provided herein are dielectric fluids comprising at least one estolide compound of formula: | 01-17-2013 |
