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| Patent # | Description |
|---|---|
| US-4,873,073 |
Method for production of bismuth (III) oxide Minute spherical bismuth (III) oxide particles are produced by adding a monocarboxylic acid to an aqueous solution containing trivalent bismuth ions thereby... |
| US-4,873,072 |
Recovery of hafnium values from loaded extraction solvent In the production of a highly pure hafnium oxide by calcination of a highly pure hafnium hydroxide, the production of a highly pure hafnium hydroxide from a... |
| US-4,873,071 |
Graphite structures and method for production thereof A graphite structure, which is of light weight and excellent elasticity and has a packing density of 0.5 g/cm.sup.3 or lower and a recovery of 50% or higher at a... |
| US-4,873,070 |
Process for producing silicon carbide whiskers A process for producing silicon carbide whiskers by heating a react solid silicon-containing starting material and carbon-containing starting material in a... |
| US-4,873,069 |
Method for the preparation of silicon carbide whiskers A method for achieving a high yield of beta silicon carbide whiskers. According to this method, very small (e.g., 0.002 microns) fluffy silicon dioxide particles... |
| US-4,873,068 |
Process for manufacturing tetrasodium pyrophosphate A process is provided for manufacturing tetrasodium pyrophosphate from sodium tripolyphosphate and a sodium salt capable of forming sodium carbonate on... |
| US-4,873,067 |
Zeolite ZSM-57 This invention relates to a synthetic porous zeolite, identified as ZSM-57, a method for its preparation. This crystalline material may have a ratio of XO.sub.2... |
| US-4,873,066 |
Low temperature process for the reduction of nitrgen oxides in an
effluent A process is presented for the reduction of nitrogen oxides in the effluent from the combustion of a carbonaceous fuel. The process comprises introducing a... |
| US-4,873,065 |
Flue gas purification process Improved flue gas purification process features a heavy metal separating process, such as an anion exchange process, in which a scrubbing condensate is treated... |
| US-4,873,064 |
Powder of coagulated spherical zirconia particles and process for
producing them Calcined powder of coagulated spherical particles having a secondary coagulated particle size of 0.2 .mu.m to 3 .mu.m, composed of primary particles of less than... |
| US-4,873,063 |
Apparatus for zone regrowth of crystal ribbons Apparatus for producing crystalline ribbons of a material from a "crucible-less" configuration of bodies of the material including possible deposition on a... |
| US-4,873,062 |
Apparatus for the growth of single crystals In an apparatus for the Czochralsky growth of compound single crystals wherein a single crystal growing portion is provided in a sealed vessel whose opening part... |
| US-4,873,061 |
Fixation of nitrogen by solar energy Mixtures of reactant gases containing nitrogen ar reacted by being raised to very high temperatures at the focal plane of a solar concentrator when radiant... |
| US-4,873,060 |
Process for the preparation of aromatic polyesters and apparatus for
carrying out this process In a process for the preparation of aromatic polyesters by polycondensation of diphenols with chlorides of aromatic dicarboxylic acids by the two-phase... |
| US-4,873,059 |
Pipette device A pipette device comprises a vertical housing, a cylinder member disposed at least in the lower section in the housing and urged upwardly so that the cylinder... |
| US-4,873,058 |
Flow divider for gas chromatographs Upstream and downstream flow dividers are connected in series between a sample dispenser and a gas chromatograph separation column. The downstream flow divider... |
| US-4,873,057 |
Apparatus for carrying out a titration procedure for the chemical
analysis of a sample The sample and the reagent required for titration are fed into a titration vessel (1), the reagent and/or sample being supplied intermittently in the form of... |
| US-4,873,056 |
Chemical test kit for detecting impurities in an oil sample A chemical test kit and method for detecting the presence of impurities in an oil sample is provided. The test kit is comprised of two flexible translucent or... |
| US-4,873,055 |
Corrosion resistant Fe-Ni-Cr alloy This invention relates to alloys resistant to corrosion, and especially resistant to corrosion caused by contact with hot sulfuric acid of over 98%... |
| US-4,873,054 |
Third element additions to aluminum-titanium master alloys An improved aluminum-titanium master alloy is provided. Such alloy contains a small be effective amount of, in weight percent, any two or more elements selected... |
| US-4,873,053 |
Method for manufacturing a metal boride ceramic material A method for manufacturing a metal boride ceramic material, includes mixing metal boride powder with 1-20 wt. % metal powder and 0.1-10 wt. % carbon powder,... |
| US-4,873,052 |
Method of manufacturing a scandate dispenser cathode and scandate
dispenser cathode manufactured according to... A method of manufacturing a scandate dispenser cathode having a matrix (1) at least the top layer of which consists substantially of a mixture of tungsten with... |
| US-4,873,051 |
Nuclear fuel grid outer strap A nuclear fuel assembly grid comprising an improved outer grid strap wherein abutting outer grid strap segments are joined at a point of intersection with an... |
| US-4,873,050 |
Method and apparatus for pressure relief of a nuclear power plant A method and apparatus for pressure relief of a nuclear power plant includes the feeding of fluid from an outlet opening of a containment through a filter to a... |
| US-4,873,049 |
Molding outer and inner soles onto shoe uppers A process for molding an outer sole of elastomer and an inner sole of a mixture of isocyanate and a polyol reacting into polyurethane to shoe uppers includes a... |
| US-4,873,048 |
Method for the formation of a hole in a plastic pipe A method of forming a hole in a plastic pipe feeds a plastic layer for the plastic pipe from a nozzle about a mandrel into chill moulds being displaced along an... |
| US-4,873,047 |
Shaping anodic aluminum oxide sheet Porous anodic aluminum oxide sheet, when removed from its aluminum metal substrate, is a useful filter but rather brittle. It can be formed into a desired shape... |
| US-4,873,046 |
Production of stretched ion-exchange membrane A method of producing an ion-exchange membrane suitable for use in an electrolytic cell in which the membrane is expanded by stretching at elevated temperature... |
| US-4,873,045 |
Method for manufacturing automotive interior components A method for manufacturing automotive interior component parts, including the steps of: positioning a skin layer, having a back liner cushioning layer, on a mold... |
| US-4,873,044 |
Method and apparatus for reduction of mold cycle time A method and apparatus are disclosed for the reduction of mold cycle time. A deflatable member is positioned flush with the surface of a mold in an opening... |
| US-4,873,043 |
Method injection molded a plastic part with a round tubular portion A process for forming a plastic part having a tubular portion that is continuous and without an flash/mismatch due to mold parting lines in which an injection... |
| US-4,873,042 |
Process for extruding a thermoplastic copolymer A process for extruding a hydrolyzable particulate thermolastic copolymer coated with an organic peroxide, which, under extrusion conditions, will provide... |
| US-4,873,041 |
Process for producing a multilayer molded article A multilayer molded article having improved appearance and feeling is produced by wetting a skin material including a fabric or a thermoplastic resin sheet as an... |
| US-4,873,040 |
Method for production of piled mats with a rubber backing on a
vulcanizing press Through a method for production of piled mats (1-3) with rubber backing on a vulcanizing press (P) with a stationary vulcanizing heater plate (8) where articles... |
| US-4,873,039 |
Method for producing shaped articles of ceramics Forming a shaped article of polysilazane, contacting this shaped article with dry ammonia at a temperature of 20.degree.-200.degree. C. to thereby effect... |
| US-4,873,038 |
Method for producing ceramic/metal heat storage media, and to the
product thereof A heat storage medium comprising a body of parent metal and an intrinsically cohesive ceramic layer formed integrally with the metal body and encapsulating said... |
| US-4,873,037 |
Method for preparing an asymmetric semi-permeable membrane A method for preparing an asymmetric, semi-permeable membrane containing a uniform microporous structure for gas and liquid separation, including forming a dense... |
| US-4,873,036 |
Method of making integrally foam-molded seats In a method of making an integrally foam-molded seat by disposing a trim cover in a molding cavity of a mold used for molding a polyurethane foam and having a... |
| US-4,873,035 |
Preparation of sized populations of liposomes The present invention provides novel methods for generating aqueous liquid encapsulating multi-lamellar lipid vesicles (liposomes) wherein one or more lipids, or... |
| US-4,873,034 |
Process for producing microporous ultra-high-molecular-weight polyolefin
membrane A process for producing a relatively thick microporous ultra-high-molecular-weight polyolefin membrane, including the steps of: (1) preparing a solution of an... |
| US-4,873,033 |
Process for the production of hyperfiltration membranes The invention relates to a hyperfiltration membrane containing a supporting layer and a separation layer. The membrane is characterized in that the separation... |
| US-4,873,032 |
Pour hole closer, straight in type, for use with injection foam molding
system A pour hole closure for use with an injection foam molding system including a mold assembly having a pour bushing leading to a reaction chamber. A cylinder... |
| US-4,873,031 |
Method of controlling the crystal grain size of uranium dioxide pellet A method of controlling the crystal grain size of UO.sub.2 pellets is disclosed, which comprises (1) providing an aqueous uranyl solution which is free of... |
| US-4,873,030 |
Method of molding a resinous optical transmitting element There is provided a resinous optical transmitting element in which a core, through which light is transmitted, is formed into a predetermined non-linear... |
| US-4,873,029 |
Method for manufacturing lenses The disclosure relates to a method and apparatus for manufacturing lenses including the use of a wafer in conjunction with liquid monomer to provide a molded... |
| US-4,873,028 |
Low silhouette cooling tower with trapezoidal fill and method of air
flow therethrough The vertical height requirement of a cooling tower is reduced by utilizing trapezoidal shaped fill sheets which are suspended generally in line with the entering... |
| US-4,873,027 |
Fluoroalkylaryliodonuim compounds Fluoroalkylaryliodonium compounds having the formula (I): ##STR1## wherein AR, A and Rf are as defined above, are disclosed. The fluoroalkylaryliodonium... |
| US-4,873,026 |
Process for the preparation of 1-aminonaphthalene-2,4,7-trisulphonic
acid and 1-aminonaphthalene-7-sulphonic acid New process for the preparation of 1-aminonaphthalene-2,4,7-trisulphonic acid and, if appropriate, 1,7-Cleve's acid, in which 1-nitronaphthalene is reacted by... |
| US-4,873,025 |
Alkylxylene sulfonate compositions Compositions comprising alkylxylene sulfonate compounds of the formula ##STR1## wherein R' represents a C.sub.6 to C.sub.20 alkyl group and wherein M ... |
| US-4,873,024 |
Method of synthesizing leukotriene B.sub.4 and derivatives thereof An improved method for synthesizing leukotriene B.sub.4 and derivatives thereof is disclosed, as are novel intermediates used in the process. Unlike prior art... |
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