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| Number | Title | Issue Date |
| 7601319 | Process for the manufacture of monobasic potassium phosphate A process for producing monobasic potassium phosphate is provided wherein a reaction mixture of phosphoric acid is combined with potassium hydroxide. The resulting product is cooled to allow crystallization of the product. The product is homogenized and spray dried,... | 10/13/2009 |
| 7385803 | Tetravalent metal acid triphosphates This invention is based on the preparation of new solid acid triphosphates with compositions of the general formula M(IV)(HPO4)(H2PO4)2, where M(IV) is a tetravalent metal or a mixture of tetravalent metals. These compounds are insoluble in water the greater part of... | 06/10/2008 |
| 7374740 | Process for producing high purity phosphates Phosphate rock is reacted with phosphoric acid to produce monobasic calcium phosphate. Monobasic calcium phosphate is reacted with ammonium carbonate to produce ammonium phosphate. Dibasic calcium phosphate is also produced as a by-product when monobasic calcium pho... | 05/20/2008 |
| 7374739 | Calcium phosphate bone replacement materials and methods of use thereof Methods of making porous calcium phosphate bone replacement materials are discussed. ... | 05/20/2008 |
| 7354966 | Compounds for use as surfactants Compounds of formula (I): and uses of such compounds are described. ... | 04/08/2008 |
| 7276229 | Oral compositions comprising a viscosity modifier for reduction of tooth erosion The use of viscosity modifying polymer materials, commonly used as stabilisers, thickeners and emulsifiers, as tooth erosion inhibitors in acidic compositions for oral administration, especially in acidic beverages such as fruit drinks and oral healthcare products s... | 10/02/2007 |
| 7273521 | Method of producing granulated calcium carbonate/calcium phosphate composite materials with very high calcium to phosphate mole ratios A new and useful method of simultaneously producing and granulating composite materials for simultaneous internal delivery of high amounts of calcium and phosphate to a subject (person or animal) is provided. Such a method entails the dropwise addition of concentrat... | 09/25/2007 |
| 7273596 | Method of producing granulated anhydrous dicalcium phosphate A new and useful method of simultaneously producing and granulating anhydrous dicalcium phosphate is provided. Such a method entails the reaction of concentrated phosphoric acid with a powdered material of lime and/or calcium carbonate in substantially equal stoichi... | 09/25/2007 |
| 7255962 | Eulytite solid acid electrolytes for electrochemical devices Improved solid acid electrolyte materials, methods of synthesizing such materials, and electrochemical devices incorporating such materials are provided. The stable electrolyte material comprises a solid acid in a eulytine structure capable of undergoing rotational ... | 08/14/2007 |
| 7169372 | Method for producing nano-sized crystalline hydroxyapatite A mechanism and technological process for synthesizing nano-sized crystalline hydroxyapatite. In particular, for producing nano-sized crystalline hydroxyapatite whose particles have nano dimensions in length “l”, width “d” and thickness “h”, wherein “h... | 01/30/2007 |
| 7153482 | Rod 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 |
| 7150862 | Method of manufacturing powder A method of manufacturing a powder, by which it is possible to adjust the strength of the obtained powder is provided. The manufacturing method of a powder involves a step of preparing a slurry containing agglomerated particles of a synthetic material which is produ... | 12/19/2006 |
| 7101522 | Production of dicalcium phosphate or monocalcium phosphate A process is provided for the production of dicalcium phosphate form a phosphate source material in which a solution of phosphoric acid is produced by the action of a suitable mineral acid, generally sulphuric acid, on a phosphate source material. Calcium fluoride i... | 09/05/2006 |
| 7101519 | Zirconium basic carbonate and methods of making the same Methods of making zirconium basic carbonate are further described which involve titrating an aqueous slurry of sodium zirconium carbonate to a pH of from about 3.5 to about 4.0 with an acidic agent wherein the sodium zirconium carbonate has a moisture content of fro... | 09/05/2006 |
| 7045105 | Calcium phosphate bone replacement materials and methods of use thereof Methods of making porous calcium phosphate bone replacement materials are discussed. ... | 05/16/2006 |
| 7033498 | Cartridges useful in cleaning dialysis solutions Cartridges useful in regenerating or purifying dialysis solutions are described as well as methods to regenerate or purify spent dialysis solutions. Dialysis systems using the sorbent cartridges of the present invention are further described. ... | 04/25/2006 |
| 7018460 | Self-hardening calcium phosphate materials with high resistance to fracture, controlled strength histories and tailored macropore formation rates A bone replacement material and therapy comprises the combination of calcium phosphate compounds and two or more soluble fillers in the form of fibers, mesh or other materials which have the dual functions of reinforcing an in vivo implant while dissolving at a prog... | 03/28/2006 |
| 6960328 | Zirconium phosphate and method of making same A zirconium phosphate compound having a Zr:P ratio of from about 1.80-2.0 to 1, which compound's H-form exhibits a single peak at −13.7±0.5 ppm in the 31P NMR spectra. The compound is useful as a catalyst, catalyst support and ion exchange media having... | 11/01/2005 |
| 6955716 | Self-hardening calcium phosphate materials with high resistance to fracture, controlled strength histories and tailored macropore formation rates A bone replacement material and therapy comprises the combination of calcium phosphate compounds and two or more soluble fillers in the form of fibers, mesh or other materials which have the dual functions of reinforcing an in vivo implant while dissolving at a prog... | 10/18/2005 |
| 6936175 | Zirconium phosphate, hafnium phosphate and method of making same The invention relates to zirconium phosphate of H form which is characterized by a 31P NMR spectra comprising peaks at −4.7 ppm, −12.8 ppm and −17.0 ppm (all peaks being in a range of ±0.5 ppm). Also featured is a Na form of the material. The zirco... | 08/30/2005 |
| 6911188 | Production of two alkali metal salts by a combined ion exchange and crystallization process The invention relates a process for producing an alkali metal nitrate and an alkali metal phosphate in the same process from a phosphate raw material and a nitrate raw material comprising the steps of: a) reacting the phosphate raw... | 06/28/2005 |
| 6881227 | Hydroxylapatite material containing tricalcium phosphate with microporous structure The invention relates to a hydroxylapatite material containing phosphate wherein the microporous structure of algae hard-tissue raw material is retained in the end product and which can be obtained by reacting an organic compound devoid of algae hard-tissue in an al... | 04/19/2005 |
| 6818196 | Zirconium phosphate and method of making the same A method of making sodium zirconium carbonate is described which involves forming a mixture of zirconium oxychloride with soda ash and then heating at a sufficient temperature and for a sufficient time to form the sodium zirconium carbonate. Subsequent washing and f... | 11/16/2004 |
| 6689335 | Silver ion sequester and release agent A silver ion sequester and release agent is described which comprises a silver ion exchangeable material of the formula: M(H1-x-y Agx M'y PO4)2.nH.sub.2 O; where M is Zr, Ti, Sn, Ge or Hf or any combination the... | 02/10/2004 |
| 6652823 | Process for the synthesis of VPO catalysts Process for the preparation of a vanadium phosphate catalyst comprising treatment of a vanadium compound with formic acid, water and a phosphorus compound.... | 11/25/2003 |
| 6599493 | Method for preparing hydrous iron oxide gels and spherules The present invention is directed to methods for preparing hydrous iron oxide spherules, hydrous iron oxide gels such as gel slabs, films, capillary and electrophoresis gels, iron monohydrogen phosphate spherules, hydrous iron oxide spherules having suspe... | 07/29/2003 |
| 6585946 | Process for the preparation of magnesium and carbonate substituted hydroxyapatite A process for the preparation of a single phase magnesium- and carbonate-substituted hydroxyapatite composition, which process comprises the steps of (i) preparing an aqueous solution containing CO32- and PO43- ... | 07/01/2003 |
| 6582672 | Method for the preparation of carbonated hydroxyapatite compositions A process for the preparation of a single phase carbonate-substituted hydroxyapatite composition, which process comprises the steps of (i) preparing an aqueous solution containing Co32- and PO43- ions in the sub... | 06/24/2003 |
| 6569396 | Method for producing calcium phosphate powder The present invention provides a method of manufacturing calcium phosphate powder comprising the steps of preparing a mixed material by mixing calcium hydroxide (Ca(OH)2) powder and calcium hydrogenphosphate powder so that a molar ratio (Ca/P) ... | 05/27/2003 |
| 6565756 | Method for the conditioning of phosphoric acid A method for the conditioning of phosphoric acid containing solutions is described, wherein the solution is converted to a solid material by adding an aluminum compound. This solid material can readily be stored in disposal sites because it is not water-s... | 05/20/2003 |
| 6334891 | 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... | 01/01/2002 |
| 6312468 | Silicon-substituted apatites and process for the preparation thereof The present invention provides a synthetic silicon-substituted apatite or hydroxyapatite which comprises 0.1% to 5% by weight of silicon. The silicon-substituted apatite or hydroxyapatite may be used as a synthetic bone material for use in bone substituti... | 11/06/2001 |
| 6183711 | Apatite-forming-systems: methods and products Methods comprise contacting apatite-forming-systems with partially alkylated xanthines. The methods include pharmaceutical applications of partially alkylated xanthines to mitigate the effects of hard tissue diseases. Products comprise apatite formed from... | 02/06/2001 |
| 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 |
| 6103810 | Glass/polymer melt blends This invention is directed to the preparation of alloy articles consisting essentially of glass and high temperature organic thermoplastic or thermosetting polymers having working temperatures which are compatible with that of the glass and/or the precurs... | 08/15/2000 |
| 6051200 | Process for preparing hemipotassium phosphate There is disclosed a novel process for preparing hemipotassium phosphate useful as an acidulant for beverages. An equimolar mixture of monopotassium phosphate and phosphoric acid is heated to a temperature above 100° C. cooled with vigorous agitation whe... | 04/18/2000 |
| 6002065 | Kits for preparing calcium phosphate minerals Setting times of calcium phosphate cement compositions are enhanced by the addition of phosphate or carbonate lubricant compositions. Methods for preparing the cement compositions are provided.... | 12/14/1999 |
| 5997624 | Self-setting calcium phosphate cements and methods for preparing and using them The invention includes methods and compositions relating to calcium phosphate cements, which self-harden substantially to hydroxyapatite at ambient temperature when in contact with an aqueous medium. More specifically the cements comprise a combination of... | 12/07/1999 |
| 5997833 | Apparatus and process for purifying highly impure calcium hydroxide and for producing high-value precipitated calcium carbonate and other calcium products A solution process for the purification of calcium hydroxide, particularly from hydrated carbide lime, which is subsequently used as a feed stock for a high-value calcium product, preferably calcium carbonate. Precipitated calcium carbonate is formed by r... | 12/07/1999 |
| 5962028 | Carbonated 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 |
