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Class 423/301 - Fluorine


Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Products or processes wherein the halogen is fluorine.
No. of patents: 77
Last issue date: 06/22/2010


1    
NumberTitleIssue Date
7740820Method of producing fluoroapatite, fluoroapatite, and adsorption apparatus
A method of producing a fluoroapatite is provided. The method comprises preparing a slurry containing a hydroxyapatite which has at least one hydroxyl group, preparing a hydrogen fluoride-containing solution containing a hydrogen fluoride, mixing the hydrogen fluori...
06/22/2010
7378194Materials useful as electrolytic solutes
The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FX
05/27/2008
7365369Nitride semiconductor device
A nitride semiconductor device used chiefly as an LD and an LED element. In order to improve the output and to decrease Vf, the device is given either a three-layer structure in which a nitride semiconductor layer doped with n-type impurities serving as an n-type co...
04/29/2008
7320728Rod-shaped apatite crystals having a specific length-to-width ratio
The rod-shaped apatite crystals of the formula Ca5(PO4)3(OH)xFy have the following features a) the length-to-breadth ratio of the crystals is at least ≧5 and b) x+y=1, where if x or y...
01/22/2008
7204773Tensioning device for an internal combustion engine
A tensioning device for a chain drive of an internal combustion engine, having a support member (1) which is pivotally mounted thereupon and is axially snapped onto and retained on a bearing journal (4) of the support member (1) via a bearing lu...
04/17/2007
7153482Rod shaped apatite crystals having a specific length-to-width ratio
The rod-shaped apatite crystals of the formula Ca5(PO4)3(OH)xFy have the following features a) the length-to-breadth ratio of the crystals is at least ≧5 and b) x+y=1, where if x or y...
12/26/2006
7094328Strong acids, process for the preparation thereof, and uses thereof
The present invention relates to acids of the general formula [I], [RyPF6-y]−H+ [I], where y=1, 2 or 3, and in which the ligands R may be identical or different and R is a perfluorinated C1-8-alkyl or aryl gro...
08/22/2006
7083996Nitride semiconductor device and manufacturing method thereof
A nitride semiconductor device includes a GaN substrate having a single-crystal GaN layer at least on its surface and plurality of device-forming layers made of nitride semiconductor. The device-forming layer contacting the GaN substrate has a coefficient of thermal...
08/01/2006
7081366Uniform bead dosing from a stable dispersion
A primary antibody bead suspension for an enzyme-linked immunoassay (“ELISA”) procedure is formed of a quantity of primary antibody coated magnetic beads (3) uniformly dispersed and held in suspension (9) by a thixotropic non-Newtonian fluid (1
07/25/2006
7015053Nitride semiconductor laser device
A nitride semiconductor laser device has an improved stability of the lateral mode under high output power and a longer lifetime, so that the device can be applied to write and read light sources for recording media with high capacity. The nitride semiconductor lase...
03/21/2006
7008726Secondary battery electrode active materials and methods for making the same
The invention provides an electrochemical cell which includes a first electrode and a second electrode which is a counter electrode to said first electrode, and an electrolyte material interposed there between. The first electrode comprises an electrode active mater...
03/07/2006
6955795Method for producing lithium hexafluorophosphate
In order to provide a method for producing lithium hexafluorophosphate capable of producing lithium hexafluorophosphate of a higher purity than in the related art without the necessity for after-treatment for removal of impurities, a method is characterized by filte...
10/18/2005
6953594Method of preparing a poorly crystalline calcium phosphate and methods of its use
The present invention provides a novel process for producing a calcium phosphate cement or filler which hardens in a temperature dependent fashion in association with an endothermic reaction. In the reaction a limited amount of water is mixed with dry calcium phosph...
10/11/2005
6884403Method of purifying lithium hexafluorophosphate
A method of purifying lithium hexafluorophosphate that allows to purify lithium hexafluorophosphate, useful as lithium secondary cell electrolyte, organic synthesis medium or the like, to an extremely high purity is provided. Lithium hexafluorophosphate containing h...
04/26/2005
6841301Fluoroalkyl phosphates for use in electrochemical cells
The present invention relates to fluoroalkyl phosphates, to a process for the preparation, and to their use as conductive salts in batteries, capacitors, supercapacitors and galvanic cells. ...
01/11/2005
6824882Fluorinated phosphonic acids
Fluorinated phosphonic acid compounds, useful as treatments for substrate surfaces, have the formula: wherein: R1 is a straight chain alkylene group having from about 3 to ...
11/30/2004
6824754Solid state thermal method for the synthesis of lithium hexafluoro phosphate (LiPF)6 as battery electrolyte
The present invention provides a method for the preparation of LiPF6 (lithium hexafluoro phosphate) wherein equimolar quantities of pure dry AR lithium source such as Li2O or Li2CO3 or LiNO3 is mixed with (very ...
11/30/2004
6794083Fluoroalkylphosphate salt electrolytes
The present invention relates to mixtures of fluoroalkylphosphate salts and polymers, methods of producing same, and their use in electrolytes, batteries, capacitors, supercapacitors and galvanic cells. ...
09/21/2004
6790419Purification of gaseous inorganic halide
The present invention provides an apparatus and method for the purification of gaseous inorganic halides utilizing a reactive metal and molecular sieves to remove impurities. ...
09/14/2004
6645451Method of preparing inorganic pentafluorides
The preparation of phosphorus pentafluoride and arsenic pentafluoride by reacting corresponding trihalides with elemental chlorine, bromine or iodine and also with hydrogen fluoride....
11/11/2003
6540969Preparation of hexafluorophosphoric acid
The present invention provides a process for preparing hexafluorophosphoric acid complexed with about 1 to 3.3 molecules of water which are stable at temperatures below 20° C. and the compositions prepared thereby....
04/01/2003
6514474Method of purifying lithium hexafluorosphate
A method of purifying lithium hexafluorosphate that allows to purify lithium hexafluorophosphate, useful as lithium secondary cell electrolyte, organic synthesis medium or the like, to an extremely high purity is provided. Lithium hexafluorophosphate cont...
02/04/2003
6500399Method for making lithium hexafluorophosphate
The process consists in manufacturing LiPF6 by reacting LiF with PF5 in liquid sulphur dioxide (SO2). The LiPF6, obtained in a yield of 99.5% relative to the LiF reacted, has a purity of greater than or equal to 99.9...
12/31/2002
6409978Method of removing impurities from mineral concentrates
A process for removing impurities contained in the crystal lattice of minerals, comprising the steps of forming a mixture of a mineral capable of structurally reorganizing its crystal lattice which contains an impurity in its crystal lattice and a halogen...
06/25/2002
6406677Methods for low and ambient temperature preparation of precursors of compounds of group III metals and group V elements
Processes are provided for preparation of precursors of Group III-V compounds, i.e., nitrides, phosphides, arsenides, antimonides and bismuthides of boron, aluminum, gallium and indium. The precursors are easily converted, e.g., by thermal decomposition, ...
06/18/2002
6387340Manufacturing method for lithium hexafluoro phosphate
A method of preparing lithium hexafluoro phosphate (LiPF6) using phosphorous pentachloride (PCl5), lithium chloride (LiCl), and hydrogen fluoride (HF) as raw materials. The method includes the steps of: (a) reacting the phosphorous p...
05/14/2002
6365301Materials useful as electrolytic solutes
The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide su...
04/02/2002
6322764Preparation of phosphorus pentafluoride
A process for the preparation of anhydrous high purity phosphorus pentafluoride in high yield. The process uses an excess of hydrogen fluoride in a reaction with a phosphoric acid to form hexafluorophosphoric acid followed by reaction with a sulfur based ...
11/27/2001
6210830Lithium fluorophosphates and their use as conducting salts
The invention relates to novel lithium fluorophosphates of the general formula Li+ [PFa (CHb Fc (CF3)d)e ]-, (I) wherein a is 1, 2, 3, 4 or 5, b is 0 or 1, c is 0, 1, 2 or 3, d...
04/03/2001
6197205Electrolytic solution for lithium cell and method for producing same
The present invention relates to a method for producing an electrolytic solution containing a solute of lithium hexafluorophosphate. This method includes a step of (a) reacting lithium fluoride with phosphorus pentafluiride, in a nonaqueous organic solven...
03/06/2001
6096281Method for producing uranium oxide from uranium oxyfluoride
A method for producing uranium oxide includes combining uranium oxyfluoride and a solid oxidizing agent having a lower thermodynamic stability than the uranium oxide after "oxide"; heating the combination below the vapor point of the uranium oxyfluoride t...
08/01/2000
6090353Method of removing impurities from mineral concentrates
A process for removing impurities contained in the crystal lattice of minerals, comprising the steps of forming a mixture of a mineral capable of structurally reorganizing its crystal lattice which contains an impurity in its crystal lattice and a halogen...
07/18/2000
6019955Active nickel hydroxide material having controlled water content
An nickel hydroxide positive electrode active material which can be made by an ultrasonic precipitation method. The nickel hydroxide active material is characterized by the composition: ##EQU1## where x, the number of water ligands surrounding each N...
02/01/2000
6000341Methods and composition for mineralizing and fluoridating calcified tissues
This invention involves new compositions and methods of use and delivery of amorphous calcium compounds such as: amorphous calcium phosphate (ACP), amorphous calcium phosphate fluoride (ACPF), amorphous calcium carbonate phosphate (ACCP), amorphous calciu...
12/14/1999
5993767Solvate of lithium hexafluorophosphate and pyridine, its preparation and preparation process for lithium hexafluorophosphate using said solvate
The invention relates to a lithium hexafluorophosphate solvate usable for the preparation of high purity lithium hexafluorophosphate. This solvate of lithium hexafluorophosphate and pyridine complies with the formula: Li(C5 H5 N)PF6
11/30/1999
5962028Carbonated hydroxyapatite compositions and uses
Carbonated hydroxyapatite compositions and their preparation are described. The compositions are biologically resorbable and are prepared as flowable masses which can be administered by syringe to set in situ to serve as a support structure, filler, prost...
10/05/1999
5952010Paste compositions capable of setting into carbonated apatite
Carbonated hydroxyapatite compositions and their preparation are described. The compositions are biologically resorbable and are prepared as flowable masses which can be administered by syringe to set in situ to serve as a support structure, filler, prost...
09/14/1999
5935541Process for manufacture of lithium hexafluorophosphate
The process of the present invention consists in bringing into contact, on the one hand, (A) gaseous phosphorus pentafluoride or a gaseous mixture comprising phosphorus pentafluoride and hydrochloric acid, and, on the other hand, (B) a solution of lithium...
08/10/1999
5918106Method for producing uranium oxide and a non-radioactive fluorine compound from uranium tetrafluoride and a solid oxide compound
A method for producing uranium oxide includes combining uranium tetrafluoride and a solid oxidizing agent having a lower thermodynamic stability than the uranium oxide; heating the combination below the vapor point of the uranium tetrafluoride to sufficie...
06/29/1999
5866093Method of preparing LiPF6
A method for preparing lithium hexafluorophosphate, which is useful as an electrolyte in primary and secondary cells, involves combining and cooling phosphorus pentachloride and lithium fluoride, and then adding hydrogen fluoride. Using this method, which...
02/02/1999
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