Class 423/314 - Metaphosphate

Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Products or processes wherein the product contains the meta-phosphate
No. of patents: 54
Last issue date: 01/30/2007

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Number	Title	Issue Date
7169728	Photo-functional powder and applications thereof A condensed phosphate containing an alkaline earth metal is caused to be present on the surface of titanium dioxide fine particles, and as a result, the condensed phosphate is firmly coupled with the fine particles and is barely liberated from the surface of the fin...	01/30/2007
7060643	Photo-functional powder and applications thereof A condensed phosphate containing an alkaline earth metal is caused to be present on the surface of titanium dioxide fine particles, and as a result, the condensed phosphate is firmly coupled with the fine particles and is barely liberated from the surface of the fin...	06/13/2006
6846493	Synthetic biomaterial compound of calcium phosphate phases particularly adapted for supporting bone cell activity The present invention is directed to a synthetic biomaterial compound based on stabilized calcium phosphates and more particularly to the molecular, structural and physical characterization of this compound. The compound comprises calcium, oxygen and phosphorous, wh...	01/25/2005
6824754	Solid 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
6740299	Method of manufacture of phosphate-bonded refractories A method of manufacturing a phosphate-bonded refractory product entirely during the mixing cycle by reacting phosphoric acid and alumina derived from one or more sources of finely divided reactive alumina, for example β-alumina and/or alumina hydroxide to form a pr...	05/25/2004
6656441	Process for the preparation of lithium metaphosphate The present invention provides a process for the preparation of lithium metaphosphate comprising reacting a lithium source and a phosphorous source in solid state to obtain lithium metaphosphate....	12/02/2003
6648960	Method of shortening a working and setting time of a calcium phosphate cement (CPC) paste A method of shortening a working and setting time of a CPC paste without using additives or sacrificing its strength, which includes heating CPC powder so that the CPC powder is maintained at a temperature of 50-400° C. for a period of time which is grea...	11/18/2003
6585992	Synthetic biomaterial compound of calcium phosphate phases particularly adapted for supporting bone cell activity The present invention is directed to a synthetic biomaterial compound based on stabilized calcium phosphates and more particularly to the molecular, structural and physical characterization of this compound. The compound comprises calcium, oxygen and phos...	07/01/2003
6342284	Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it The invention provides a set gypsum-containing product having increased resistance to permanent deformation and a method for preparing it comprising forming a mixture of a calcium sulfate material, water, and an appropriate amount of one or more enhancing...	01/29/2002
6323146	Synthetic biomaterial compound of calcium phosphate phases particularly adapted for supporting bone cell activity The present invention is directed to a synthetic biomaterial compound based on stabilized calcium phosphates and more particularly to the molecular, structural and physical characterization of this compound. The compound comprises calcium, oxygen and phos...	11/27/2001
6153002	Ceramic material for fillings and/or dental prostheses and method for the manufacture of the same A method is disclosed for the manufacture of a ceramic material for fillings or dental prostheses, which includes the steps of forming a precipitation product having at least one slightly soluble calcium phosphate compound, which has at least two phases o...	11/28/2000
6110851	Process for producing a ceramic material based on calcium phosphate compounds and use of this material A method of producing a ceramic material based on calcium phosphate compounds for use in dental medicine by adding a phosphate solution to a calcium salt solution, separating the precipitation formed in the reaction solution from the mother liquor, drying...	08/29/2000
6010869	Method to collect and recover microorganisms from environmental samples Presented herein is an improved method to collect and recover microorganisms from environmental samples. The method of this invention comprises the steps of (a) obtaining a sample for testing and, optionally, suspending the sample in a suitable liquid, (b...	01/04/2000
5955047	Process for producing alkali metal polyphosphates A process for producing an alkali metal polyphosphate, comprising heating a solution comprising a solvent, alkali metal ions, phosphate ions, and 3 to 50% by weight of organic matter, wherein the solution contains, in total, 5 to 65% by weight of the alka...	09/21/1999
5952010	Paste 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
5824239	Method to remove biguanide from an aqueous source A method for removing biguanide from aqueous sources, such as swimming pools, is disclosed. The method includes the steps of bringing at least one polymeric metaphosphate into contact with the aqueous source in a sufficient concentration to form particles...	10/20/1998
5728463	Stationary phase material for chromatography A material for use as a stationary phase for chromatography comprising a solid material the surface of which is coated with pyrophosphate and/or metaphosphate....	03/17/1998
5711779	Method for forming zinc phosphate based glasses A method for the manufacture of phosphate glass comprising forming an aqueous slurry by mixing phosphoric acid, a zinc compound and other batch materials in the required proportions, heating the batch slurry to produce a molten phosphate glass that exhibi...	01/27/1998
5618472	Compounds and methods for separation and molecular encapsulation of metal ions Anions of the formula (I): [DA5 M30-x O110-x (M'L)x ]m- (I) in which D is Na+, Ca2+ ; A is P, As, Sb, Si, Ge, or combinations thereof, M is W5+, W6+, or mixtures...	04/08/1997
5536575	Tetracalcium phosphate-based materials and processes for their preparation The invention provides (i) a process for preparing tetracalcium phosphate particles, the process comprising the steps of (1) sintering or fusing a powder mixture at a temperature of not lower than 1,400° C., the mixture comprising a powder of calcium sou...	07/16/1996
5482526	Method for forming a non-hygroscopic zinc-phosphate compound and a zinc-phosphate glass The instant invention describes a method for preparing a stable, anhydrous non-hygroscopic zinc phosphate compound which is suitable for use as a batch material in the preparation of zinc-phosphate glasses. This method comprises three basic steps: first, ...	01/09/1996
5443808	Method of producing alkali metal phosphate The invention relates to a method for producing alkali metal phosphate, in particular monopotassium phosphate or its aqueous solution, by reacting fertilizer-grade phosphoric acid with alkali metal chloride at 350° . . . 700° C. to produce alkali metal ...	08/22/1995
5364568	Compounds and methods for separation and molecular encapsulation of metal ions Anions of the formula (I): [DA5 M30-x O110-x (M'L)x ]m- (I) in which D is Na+, Ca2+; A is P, As, Sb, Si, Ge, or combinations thereof M is W5+, W6଱, or mixt...	11/15/1994
5045294	Process for preparing medium density granular sodium phosphates A method of producing medium density granular sodium phosphates by agglomerating STP fines with mineral acids, drying the agglomerated fines and screening to recover the dry agglomerated fines....	09/03/1991
5030430	Preparation of phosphates by induction melting Phosphates, e.g., the polyphosphates and halophosphates, are prepared in high purity by melt thermocondensing corresponding precursors thereof, e.g., salts of orthophosphoric, pyrophosphoric or metaphosphoric acid, via electromagnetic induction heating, f...	07/09/1991
4997638	Production of hexametaphosphates from other phosphates Disclosed is a method of making hexametaphosphates by reacting sodium tripolyphosphate, tetrasodium pyrophosphate, or trisodium phosphate with phosphoric acid, forming a molten glass of said mixture, and chilling said molten glass to form a solid....	03/05/1991
4946662	Method of forming condensed phosphates in aqueous solutions A method of forming condensed phosphates comprising reacting phosphate ions, such as generated from polyphosphate salts, and sulfamides, in an aqueous solution or suspension. An example of such a reaction is the reaction of tetrasodium tripolyphosphate an...	08/07/1990
4824649	High viscosity potassium metaphosphate An improved process for preparing potassium metaphosphate is provided which comprises reacting potassium ions, preferably from the carbonate or bicarbonate, with phosphare ions in an amount sufficient to provide a K/P molar ratio ranging from about 0.85 t...	04/25/1989
4798712	Homogeneous mixtures of polyphosphates A homogeneous, particulate mixture of alkali metal pyrophosphates and tripolyphosphates is prepared by flash drying an aqueous solution of alkali metal orthophosphates having an alkali metal to phosphorus mole ratio in the range of 5:3 to 6:3, and calcini...	01/17/1989
4780293	Process for the production of Maddrell's salt The invention provides a process for the production of Maddrell's salt, wherein solid sodium dihydrogen phosphate and/or disodium dihydrogen pyrophosphate, containing catalytic amounts of an acid or of an acid-generating compound statistically distributed...	10/25/1988
4777026	Production of phosphates from alkali-processes phosphate rock Process for production of desired phosphates from naturally occurring phosphates is characterized by treating naturally occurring phosphates under alkaline conditions to produce a material comprising trisodium and/or tripotassium orthophosphates, carbonat...	10/11/1988
4690809	Process for the preparation of asbestiform crystalline calcium sodium metaphosphate fibers Asbestiform crystalline calcium sodium metaphosphate fibers are prepared by (a) forming a homogeneous melt of substantially crystalline calcium sodium metaphosphate having a composition on a dry basis equivalent to a CaO/Na2 O/P2 O	09/01/1987
4395387	Method for manufacturing water glass cement hardeners Condensed aluminum phosphates, useful as hardeners for water glass cements, are prepared in a solid state reaction by dry mixing aluminum hydroxide with an ammonium phosphate, heating the mixture at an initial temperature below 250° C. for longer than ab...	07/26/1983
4360625	Acicular, crystalline calcium metaphosphate Acicular, crystalline calcium metaphosphate having a length to average diameter ratio of at least 10:1 can be prepared by forming a melt of materials used as a source of calcium, phosphorus and alkali metal, cooling the melt to about 550° C. to about 970...	11/23/1982
4346065	Process for the manufacture of finely dispersed sparingly soluble salts of oxyacids of phosphorus The invention relates to a process for making a finely dispersed, sparingly soluble salt of an oxyacid of phosphorus, having a maximum particle size of 20 μm, by reacting a compound of a divalent metal with the oxyacid of phosphorus or an alkali metal or...	08/24/1982
4346028	Asbestiform crystalline calcium sodium or lithium phosphate, preparation and compositions Asbestiform crystalline calcium M phosphate, where M is sodium or lithium, having a length to average diameter ratio of at least 5:1, can be prepared by forming a melt of a source of oxygen, calcium, phosphorus and M having a mole ratio of about 15 percen...	08/24/1982
4343779	Process for the condensation of phosphate solids A process and apparatus for condensing solid materials such as phosphates which tend to sinter and adhere when heated in a reactor wherein the reactants are introduced into a trough-like reactor provided with at least one set of rotatable agitating paddle...	08/10/1982
4336053	Fertilizer solutions stabilized with inorganic acids A stable liquid fertilizer solution containing nitrogen, phosphorus, iron and optionally sulfur is prepared by mixing a water-soluble iron compound with ammonium polyphosphate and water to produce an iron phosphate slurry having a molar ratio of polyphosp...	06/22/1982
4333914	Method for making aluminum trimetaphosphates from powder reactants A method for preparing aluminum trimetaphosphate comprising various chain form polyphosphate species by heating a mixture of aluminum hydroxide and ammonium phosphate is disclosed....	06/08/1982
4329327	Method for making B-form aluminum trimetaphosphate from powder reactants A method for preparing aluminum trimetaphosphate predominately in the B-form by heating a mixture of aluminum hydroxide and ammonium phosphate compound is disclosed....	05/11/1982

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Class 423/314 - Metaphosphate