Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7012209 | Method of gold separation and gold separation device A method of collecting gold by flowing water over a gold collecting medium located in a sluice to induce a positive surface charge on the gold collecting medium. Feeding gold laden material into the sluice with the flowing water to induce a negative surface charge o... | 03/14/2006 |
| 6680284 | Method for producing powdery particle-reduced formulations with the aid of compressed gases For the preparation of pulverulent particle-reduced formulations with the aid of compressed gases, the solid compound to be formulated, a poorly soluble and usually bioactive active compound, is homogeneously ground together with 10-99% by weight (based o... | 01/20/2004 |
| 6576291 | Preparation of nanocrystallites A method of manufacturing a nanocrystallite from a M-containing salt forms a nanocrystallite. The nanocrystallite can be a member of a population of nanocrystallites having a narrow size distribution and can include one or more semiconductor materials. Se... | 06/10/2003 |
| 6531117 | Aqueous dispersion of water-insoluble organic UV filter substances The invention relates to aqueous dispersions of sparingly water-soluble or water-insoluble organic UV filter substances, which comprise at least one sparingly water-soluble or water-insoluble organic UV filter substance as colloidally disperse phase in am... | 03/11/2003 |
| 6262129 | Method for producing nanoparticles of transition metals A method of forming nanoparticles includes steps of forming a metal precursor solution from a transition metal, injecting the metal precursor solution to the surfactant solution, adding a flocculent to cause nanoparticles to precipitate out of solution wi... | 07/17/2001 |
| 6123754 | Wood-impregnating agent and process for its production and use The invention relates to a wood-impregnating agent, which is an emulsion, dispersion or solution of a cationic, quaternary, amphoteric and/or special non-ionic surfactant, the surfactant or surfactants being poorly soluble in water and the dispersion or e... | 09/26/2000 |
| 6001270 | Sticky high water content gels for extinguishers Sticky high water content gelled fire extinguisher compositions hold the antage of providing a high water content, slightly viscous (sticky) gel with flow properties similar to water. The ability of this material to stick to burning surfaces is what sets... | 12/14/1999 |
| 5967964 | Aqueous dispersion slurry of inorganic particles and production methods thereof The present invention provides production methods for aqueous dispersion slurry of inorganic particles which are so stable as not to increase in viscosity, gel or sediment even if stored for a long time and whose average particle diameter is 0.01 to 2 μm... | 10/19/1999 |
| 5873931 | Coating composition having anti-reflective and anti-fogging properties A coating composition which imparts anti-reflective and anti-fog properties to substrates coated therewith. The coating composition utilizes an inorganic metal oxide in combination with particular anionic surfactants. The coating compositions are particul... | 02/23/1999 |
| 5873935 | Coating color A coating color comprising 28-51% by weight of water, 43-64% by weight of carbonate-containing pigment with a specific particle distribution and a particle diameter of 0.18-0.28 μm and a specific surface area of 19-26 M2 /g and 6-8% by weight ... | 02/23/1999 |
| 5851430 | Bituminous emulsions An HIPR emulsion of bitumen in water is prepared by a method which comprises directly mixing 70 to 98% by volume of bitumen having a viscosity in the range 200 to 500,000 mPa.s at the mixing temperature with 30 to 2% by volume of an aqueous solution of an... | 12/22/1998 |
| 5846447 | Process for forming a dispersion of polytetrafluoroethylene A process for forming a dispersion of polytetrafluoroethylene particles in a liquid containing a dispersant by passing the mixture through a plurality of nozzles within a liquid-jet interaction chamber at a pressure of to deagglomerate and stabilize the p... | 12/08/1998 |
| 5785976 | Solid lipid particles, particles of bioactive agents and methods for the manufacture and use thereof The present invention is in the area of administration forms and delivery systems for drugs, vaccines and other biologically active agents. More specifically the invention is related to the preparation of suspensions of colloidal solid lipid particles (SL... | 07/28/1998 |
| 5725804 | Non-crosslinked protein particles for therapeutic and diagnostic use Albumin particles in the nanometer and micrometer size range in an aqueous suspension are rendered stable against resolubilization without the aid of a crosslinking agent and without denaturation, by the incorporation of a stabilizing agent in the particl... | 03/10/1998 |
| 5725802 | Preparation of ultrafine particles from water-in-oil microemulsions Process for preparing ultrafine inorganic particles of size lower than 50 nm, preferably lower than 10, with narrow size distribution, of metals, oxides, sulphides, carbonates by starting from microemulsions of water in a fluorinated oil, preferably a per... | 03/10/1998 |
| 5670088 | Preparation of mixed ultrafine particles from PFPE micro-emulsion Process for preparing dispersions containing mixed oxides having particle size lower than or equal to 50 nm and having narrow size distribution, comprising the following steps: P1) preparing a microemulsion of water in oil, the oil being a perfluoropolyet... | 09/23/1997 |
| 5622553 | Substance for increasing friction between two surfaces A substance for increasing friction between two surfaces such as two metallic surfaces has a gel base material determining the viscosity of the substance and contains hard crystals mixed into the gel based material. A plurality of the hard crystals is com... | 04/22/1997 |
| 5569364 | Separation media for electrophoresis Separation media for electrophoresis, and methods of filling and flushing of electrophoretic devices such as capillaries are described. By preparing submicron to above-micron sized cross-linked gel particles and using gel swelling equilibrium concepts, su... | 10/29/1996 |
| 5567353 | Method for dispersing ceramic material in an aqueous medium A method for dispersing ceramic materials in aqueous media is disclosed. The method uses water-soluble polymers as dispersants and may be used for dispersing various classes of ceramic materials, including oxide, carbide, and nitride ceramics. The method ... | 10/22/1996 |
| 5547874 | Method for control or calibration in a chemical analytical determination An aqueous dispersion used for control or calibration of a dry analysis element comprising at least one color producing reagent and a porous layer, which comprises water-insoluble liquid particles having a mean particle size of from about 0.01 to about 10... | 08/20/1996 |
| 5529901 | Method for determining the presence or amount of analyte using a stable colloidal carbon sol This invention relates to a method for determining the presence or amount of an analyte in a sample comprising contacting the sample with a labeled constituent consisting of an aqueous carbon sol which is stable in the absence of a stabilizing substance. ... | 06/25/1996 |
| 5518660 | Aqueous colloidal dispersions of sub-micrometer alumina particles An aqueous alumina dispersion prepared from high quality, submicrometer alumina powder, suitable for manufacturing fine ceramic products, is disclosed. The sub-micrometer alumina particles have a surface area of 2.5 to 50 m2 per gram of the alu... | 05/21/1996 |
| 5468558 | Process for preparing fracture-resistant sol/gel particles A process for preparing fracture-resistant sol/gel particles which contain silicon dioxide, in which a highly disperse filler is added to the aqueous alkali metal silicate solution and/or the aqueous acid solution used in the preparation process.... | 11/21/1995 |
| 5407600 | Stable aqueous alumina sol and method for preparing the same A stable aqueous sol of amorphous alumina containing Al2 O3 up to 15% by weight and 0.1 to 0.5 gram equivalent of an anion of acid to 1 mol of aluminum in the sol, in which the colloidal particles of amorphous alumina have a controll... | 04/18/1995 |
| 5403513 | Titanium oxide sol and process for preparation thereof A titanium oxide sol comprising a disperse medium and generally rectangular, non-spherical particles of titanium oxide dispersed in the disperse medium, with narrow scatteres in particle size and configuration. The sol is excellent in dispersibility, long... | 04/04/1995 |
| 5366660 | Dispersions An oil dispersion which is substantially transparent to visible light comprises an oil, particles of zinc oxide having an average size of from 0.005 to 0.15 micron and an organic dispersing agent. The solids content of the dispersion is at least 30 weight... | 11/22/1994 |
| 5362416 | Suspensions of particles containing transition metal compounds in oils Suspensions, in oils, of particles containing a transition metal compound, which are spheroidal and of narrow particle size distribution. These suspensions can be employed in processes for the polymerization of alpha-olefins, carried out in the presence of an ... | 11/08/1994 |
| 5354563 | Water dispersion containing ultrafine particles of organic compounds A water-dispersible condensate of water-insoluble ultrafine particles of medicine or hormones having a particle size of at largest 4 μm prepared by the steps of heating the medicine or hormone in a vacuum vessel at a temperature of 30° C. higher than th... | 10/11/1994 |
| 5344588 | Cerium (IV) compound A novel cerium (IV) compound, well adopted for the production of aqueous colloidal sols therefrom, has the general formula (I): Ce (Me)x (OH)y (NO3)z (I) wherein M is an alkali metal an ammonium radical; ... | 09/06/1994 |
| 5308620 | Protein nanomatrixes and method of production The present invention is a novel method of producing a unique device of stable porous and membraneless nanomatrixes for carrying medication for in vivo administration. The present invention method produces the device of stable nanomatrixes by mixing a fir... | 05/03/1994 |
| 5309148 | Apparatus and method for testing smoke detector operation Both an apparatus and method for testing smoke detector operation is provided. The apparatus and method is used to either standardize conventional smoke detectors, or to test the actuation of an alarm signal for smoke detectors. In one embodiment of the i... | 05/03/1994 |
| 5279807 | Method for preparing low-concentration polysilicate microgels An improved method and apparatus for preparing low-concentration polysilicate microgels from a water soluble silicate and a strong acid in which the silicate and acid are mixed at a rate to produce a Reynolds number of at least 4000, the mixture is aged a... | 01/18/1994 |
| 5173274 | Flash liquid aerosol production method and appartus Method and apparatus are presented for producing liquid aerosol particles of narrow size distribution by dispersing one or more droplet columns and impinging these droplets onto a vibrating cavitation surface to create a high density fountain of aerosol p... | 12/22/1992 |
| 5160664 | High output monodisperse aerosol generator An aerosol generator used to produce, selectively and rapidly, an aerosol that has a specific particle size and is at a known specific concentration. The generator comprises a plurality of aerosol material atomizers that can be selectively used to obtain ... | 11/03/1992 |
| 5147829 | Sol-gel derived SiO2 /oxide power composites and their production A SiO2 /oxide powder composite made by preparing a sol containing SiO2 and optionally Al2 O3, Li2 O, Na2 O, TiO2, B2 O3 and mixtures thereof with oxide powder ... | 09/15/1992 |
| 5135844 | Preparation of low viscosity small particle photographic dispersions in gelatin The invention is generally accomplished by utilization of a surfactant for very small particle photographic dispersions. Three types of such surfactants that have been identified are as follows: Type A--Surfactant comprising 6 to 22 carbon atom hydrophobic tai... | 08/04/1992 |
| 5094774 | High-flowability aqueous nickel hydroxide or hydrated nickel oxide paste for vibration filling electrode frameworks An aqueous nickel hydroxide paste for the mechanical impregnation of fibrous-structure electrode frameworks. The polydisperse solid total system of solid particles in the nickel hydroxide or hydrated nickel oxide paste has a particular particle-size distr... | 03/10/1992 |
| 5089380 | Methods of preparation of precipitated coupler dispersions with increased photographic activity Base and auxiliary solvent solubilized precipitated dispersions of couplers and other photographic materials usually produce very small particle dispersions, and usually such dispersions are extremely highly reactive because of the smallness of the partic... | 02/18/1992 |
| 5013640 | Preparation of low viscosity small-particle photographic dispersions in gelatin The invention is generally accomplished by utilization of a surfactant for very small particle photographic dispersions. Three types of such surfactants that have been identified are as follows: Type A--Surfactant comprising 6 to 22 carbon atom hydrophobic tai... | 05/07/1991 |
| 5004711 | Process of producing colloidal zirconia sols and powders using an ion exchange resin A method of preparing colloidal zirconium oxide sols having substantially uniformly spherical particles in the size range of from about 0.01 to about 2.0 microns is described. The process comprises the steps of (A) preparing a liquid mixture comprising at leas... | 04/02/1991 |
