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| Number | Title | Issue Date |
| 8092772 | Use of a nozzle for manufacturing sodium percarbonate The present invention relates to a use of a two-way spray nozzle (1) with protective gas for manufacturing granular sodium percarbonate, said nozzle comprising a central tube (2) having an outlet for an aqueous hydrogen peroxide solution, an inner jack... | 01/10/2012 |
| 7371717 | Process for preparing coated alkali metal percarbonate, coated alkali metal percarbonate obtainable by this process, its use in detergent compositions, and detergent compositions containing it A process for preparing coated particulate alkali metal percarbonate in which coating is carried out by mixing percarbonate with a solid particulate coating and agent and optionally with an aqueous liquid, so that the amount of water present during mixing does not e... | 05/13/2008 |
| 7368121 | Process for controlling moss and liverwort A process for eradicating moss and liverwort which includes applying sodium percarbonate; and irrigating the moss. In some cases the process includes applying lime to control the pH of the moss and thereby constrain development of additional moss and said sodium per... | 05/06/2008 |
| 7241433 | Process for the preparation of coated granular sodium percarbonate, and product obtainable by the process The invention relates to a process for the preparation of coated granular sodium percarbonate having a low TAM value. The preparation is carried out by fluidized-bed spray granulation at a temperature TG in the range from 45 to 75° C., and the coating is... | 07/10/2007 |
| 7205000 | Sodium bicarbonate/sodium chloride micronized slurry A slurry comprising (a) sodium bicarbonate, (b) sodium chloride, and (c) water, in a weight ratio of (a)/(b) of about 2.5:1 to about 3.5:1, wherein upon further dilution of said slurry with additional water, the amount of sodium bicarbonate and sodium chloride which... | 04/17/2007 |
| 7122249 | Abrasion-resistant agglomerate mineral substance granule, powder comprising such granules and production method therefor Granule comprising an agglomerate of particles of a mineral substance. The agglomerate is coated with a monolithic outer layer, which provides it with improved abrasion resistance. Powder comprising granules according to the invention. Process for manu... | 10/17/2006 |
| 7041267 | Granular sodium carbonate obtained by fluid-bed spray granulation and a process for its production The invention relates to a process for the production, by fluid-bed spray granulation, of granular sodium percarbonate having a low TAM value. According to the invention, in the fluid-bed spray granulation, an Mg compound in a quantity of 50 to 2,000 ppm, in particu... | 05/09/2006 |
| 6942845 | Process for improving the internal stability of sodium percarbonate The invention relates to uncoated and/or coated sodium percarbonate with improved internal stability and storage stability; and, a process that provides uncoated and/or coated sodium percarbonate with improved internal stability and storage stability. ... | 09/13/2005 |
| 6793904 | Method for the preparation of sodium percarbonate granules having enhanced stability A method for the preparation of sodium percarbonate granules having enhanced stability, comprising modifying the surface of the sodium percarbonate granules by a surface reaction between sodium percarbonate and carbon dioxide or bicarbonate species to form a dense s... | 09/21/2004 |
| 6641866 | Process for manufacturing granular coated sodium percarbonate for detergent The present invention relates to a manufacturing process of a coated granular sodium percarbonate, wherein the surface of said sodium percarbonate establishes a multiple coating layer by being internally coated with a specific composition containing alkal... | 11/04/2003 |
| 6482385 | Sodium percarbonate and process for producing sodium percarbonate Sodium percarbonate is traditionally made in a crystallization process from aqueous hydrogen peroxide and sodium carbonate with recycle of mother liquor in the presence of a substantial concentration of a salting out agent, conventionally sodium chloride.... | 11/19/2002 |
| 6340452 | Sodium percarbonate and process for producing it The invention relates to a novel sodium percarbonate in the form of agglomerates of small crystals. The average particle size of the agglomerates is greater than 600 μm. The apparent density of the agglomerates is between 0.75 g/cm3 and 1.1 g/... | 01/22/2002 |
| 6306811 | Compositions containing sodium percarbonate Sodium percarbonate exhibits a tendency to decompose in built compositions and particularly detergent compositions built with zeolites. The tendency can be ameliorated by selecting sodium percarbonate which intrinsically has a mean particle size of from 5... | 10/23/2001 |
| 6248707 | Method for producing sodium percarbonate A method for the "dry" production of sodium percarbonate (dry process), in which monohydrate crystals of sodium carbonate are reacted with a quasi-stoichiometric quantity of concentrated aqueous hydrogen peroxide solution, relative to the quantity of acti... | 06/19/2001 |
| 6231828 | Process for producing sodium percarbonate Sodium percarbonate is traditionally made in a crystallization process from aqueous hydrogen peroxide and sodium carbonate with recycle of mother liquor in the presence of a substantial concentration of a salting-out agent, conventionally sodium chloride.... | 05/15/2001 |
| 6228342 | Process for the production of sodium percarbonate A flexible process for production of homogeneous sodium precarbonate particles or granules according to which a reaction slurry with an average to high solids content is prepared initially from an aqueous hydrogen peroxide solution of up to maximum 50% by... | 05/08/2001 |
| 6159252 | Process and device for producing granulates by fluidized bed spray granulation This invention relates to a process for the production of granulates by fluidized bed spray granulation and to a device for this purpose. Liquid starting materials may be converted into granulates by fluidized bed spray granulation. In order to ensure ele... | 12/12/2000 |
| 6114266 | Copper complexes for nCO and olefin adsorption A solid state composition is provided having the formula Cu(A)n Z, where A is CO or olefin, n>1 and Z is a unitary or composite monovalent anion. Further provided are an apparatus adapted to adsorb and a method for adsorbing an adsorbate A from... | 09/05/2000 |
| 6054066 | Process for preparing a sodium percarbonate product A process is disclosed for preparing a novel sodium percarbonate product useful in pH-regulated washing and cleaning systems. The disclosed sodium percarbonate product substantially is a mixed sodium percarbonate/sodium bicarbonate compound obtained by re... | 04/25/2000 |
| 5906660 | Process for the manufacture of persalt particles Continuous process for the manufacture of solid particles of alkali metal persalts by reaction of an aqueous hydrogen peroxide solution with an aqueous solution of an alkali metal salt and crystallization of the persalt formed in a crystallizer-classifier... | 05/25/1999 |
| 5851420 | Process for manufacturing granular sodium percarbonate This invention relates to a process of manufacturing granular sodium percarbonate and more particularly, to a process of a stable granular sodium percarbonate detergent composition having an excellent solution velocity when added to water, comprising the ... | 12/22/1998 |
| 5792738 | Granular laundry detergent compositions containing stabilised percarbonate bleach particles There is provided a granular, silicate-built, phosphate free laundry detergent composition comprising fine alkali metal percarbonate particles having mean particle diameter below 450 μm, preferably below 400 μm, wherein no more than 20%, preferably no m... | 08/11/1998 |
| 5720896 | Laundry bleaching composition Dry bleaching compositions are disclosed which comprise an alkali metal salt of percarbonate and a dry-form composition comprising a carboxylic polymer. The compositions provide effective bleaching and are as stable upon manufacture and storage.... | 02/24/1998 |
| 5702635 | Granular laundry bleaching composition A particulate bleaching composition is disclosed which comprises particles of an alkali metal salt of percarbonate or mixtures thereof. The particles of the percarbonate bleach are coated and/or agglomerated with a stabilizing effective amount of a hydrop... | 12/30/1997 |
| 5690701 | Process for the manufacture of particles of coated persalts Continuous process for the manufacture of solid alkali metal persalt particles coated by crystallization of a supersaturated aqueous solution of persalts and covering of the persalt particles in a post-crystallization vessel into which at least one coatin... | 11/25/1997 |
| 5670470 | Percarbonate stabilised by coating with an aqueous solution of phosphate and boron compounds A process for stabilising percarbonate by coating with a coating agent. The percarbonate particles are treated with a concentrated aqueous solution containing at least one boron compound selected from the metal and ortho boric acids and at least one phosp... | 09/23/1997 |
| 5665427 | Process for stabilizing particulate alkali metal percarbonate The invention relates to a process for stabilizing particulate alkali metal percarbonate by coating by coating it with an aqueous solution, preferably concentrated, of a complex formed from a boric acid or borate and an organic diol, polyol or hydroxycarb... | 09/09/1997 |
| 5658873 | Coated sodium percarbonate particles, a process for their production and detergent, cleaning and bleaching compositions containing them Sodium percarbonate is often used in the form of coated particles to increase its storage stability in detergents. Sodium percarbonate particles coated in accordance with the invention have a coating containing reaction products from the reaction of a dialkali... | 08/19/1997 |
| 5632965 | Method for the preparation of stabilized sodium percarbonate The invention relates to a method for increasing the storage stability of sodium percarbonate (2 Na2 CO3.3 H2 O2) by coating with a sodium perborate. According to the present invention wet sodium percarbonate salt, o... | 05/27/1997 |
| 5624650 | Nitric acid process for ferric sulfate production Ferric sulfate is produced by treating ferric ammonium sulfate, ammonium jarosite or a similar iron complex with nitric acid. The ferric ammonium sulfate or ammonium jarosite can be formed by treating a sulfuric acid leaching solution, e.g., a solution us... | 04/29/1997 |
| 5603911 | Preparing a crystalline, stable sodium percarbonate The object of the invention is a process for preparing a crystalline, stable sodium percarbonate, in which polymers of gross formulas (I or II) are added in the preparation process to control the crystal form of the sodium percarbonate and to coat the cry... | 02/18/1997 |
| 5560896 | Method for producing granulated sodium percarbonate Sodium percarbonate is produced by means of fluidized bed granulation. The process includes spraying an aqueous sodium carbonate solution and a hydrogen peroxide solution onto nuclei in a fluidized bed and evaporating the water. In the process of the inve... | 10/01/1996 |
| 5556834 | Percarbonate particles stabilized by coating with an aqueous solution containing a silicate and a boric acid A process for stabilizing percarbonate by coating by means of a coating agent according to which the percarbonate particles are treated with a concentrated aqueous solution containing at least one boron compound selected from meta and ortho boric acids an... | 09/17/1996 |
| 5507972 | Process for the preparation of a mixture of sodium silicates and other salts and the use of the mixture To prepare a mixture of sodium silicates having lamellar structure and sodium carbonate peroxohydrate, sodium silicate composed essentially of δ-Na2 Si2 O5 is reacted at least partially with carbon dioxide and atomized wa... | 04/16/1996 |
| 5505875 | Storage-stable encapsulated sodium percarbonate and process for its production Storage stability of finely divided sodium percarbonate is improved by melt-coating of water-insoluble encapsulation agents.... | 04/09/1996 |
| 5366655 | Stable sodium percarbonate particle and process for preparing same A stable sodium percarbonate particle that at least the inside of the particle is penetrated and coated with a borate and a process for preparing the same are disclosed. The sodium percarbonate particle of the invention is preparesd by subjecting a dried ... | 11/22/1994 |
| 5346680 | Sodium percarbonate stabilized by coating Sodium percarbonate particles stabilized by being coated with a solid coating material which contains a mixture of sodium carbonate and sodium chloride, optionally together with one or more auxiliary agents used in the manufacture of sodium percarbonate.... | 09/13/1994 |
| 5340496 | Stabilized sodium percarbonate composition A stabilized sodium percarbonate is obtained by incorporating therein (A) at least one compound selected from the group consisting of mono- and dicarboxylic acids having not less than four carbon atoms and salts thereof; and (B) at least one compound sele... | 08/23/1994 |
| 5332518 | Stable slurry-coated sodium percarbonate, process for producing the same and bleach detergent composition containing the same A stable sodium percarbonate having excellent stability when incorporated into a bleaching agent composition or a detergent composition, particularly a zeolite-containing detergent composition. The stable sodium percarbonate is produced by a process which... | 07/26/1994 |
| 5328721 | Process for manufacturing sodium carbonate perhydrate particles and coating them with sodium borosilicate A process to manufacture and coat a sodium carbonate perhydrate containing 10.5% to 14% active oxygen which is stable in a non-phosphate detergent composition and which has a bulk density of from 900 to 1,050 kg/m3. Anhydrous sodium carbonate w... | 07/12/1994 |
