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| Number | Title | Issue Date |
| 7585898 | Composition for growth of diatom algae The present invention relates to a composition for a copious bloom of diatom algae comprising macro and or micro nutrients adsorbed on metalate modified silica sol. The present invention further relates to a process for preparing an aqueous dispersion of a compositi... | 09/08/2009 |
| 7338617 | Process for preparing a flocculant for water treatment The invention provides metal-silica polymeric flocculants having high coagulation performance which are used for water treatment, particularly to remove suspended materials and other impurities from irrigation water, waste water or the like. A silica sol having a Si... | 03/04/2008 |
| 7238733 | Storable water-silica suspensions and methods Storable water-silica suspensions and methods of cementing well bores are provided. The storable water-silica suspensions are basically comprised of water, silica and an effective amount of a suspending agent selected from the group consisting of colloidal materials... | 07/03/2007 |
| 7223454 | Ink jet recording element with core shell particles An image recording element having a support having thereon an image-receiving layer, the recording element containing core/shell particles wherein the shell of the particles is an oligomeric or polymeric aluminosilicate complex or an aluminosilicate particulate, the... | 05/29/2007 |
| 7169261 | Silica-based sols An aqueous sol containing silica-based particles which has an S-value within the range of from 10 to 45%, a viscosity within the range of from 5 to 40 cP, and a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range o... | 01/30/2007 |
| 7156174 | Contained micro-particles for use in well bore operations The present invention relates to well bore operations, and more particularly, to contained micro-particles, and methods for using such contained micro-particles in cementing operations. An exemplary method of facilitating the use of micro-particles in a well bore fl... | 01/02/2007 |
| 7030049 | Radiopaque cationically polymerizable compositions comprising a radiopacifying filler, and method for polymerizing same Polymerizable compositions that include: (a) a cationically active functional group; (b) an initiation system capable of initiating cationic polymerization of the cationically active functional group; and (c) a filler composition that includes various radiopacifying... | 04/18/2006 |
| 6918954 | Colloidal silicate dispersion, method for its preparation and its use The present invention is directed to a colloidal aqueous silicate dispersion containing silica and alumina, the molar ratio between silica and alumina being 2-12, as well as to a method for its preparation. Said method is characterized by dissolving a particulate mi... | 07/19/2005 |
| 6841609 | Formulation suitable for ink receptive coatings Formulations comprising novel porous metal oxide particles and binder are particularly suitable for ink receptive coatings, e.g., for ink jet papers and films. The metal oxide particles used in this application have a porous structure that differs significantly from... | 01/11/2005 |
| 6808769 | Dispersion, coating composition, and recording medium The present invention provides an aqueous dispersion containing at least two powder types selected from one or more metal oxide powders and/or one or more non-metal oxide powder. The present invention also provides a coating composition containing this dispersion, a... | 10/26/2004 |
| 6780920 | Formulation suitable for ink receptive coatings Formulations comprising novel porous metal oxide particles and binder are particularly suitable for ink receptive coatings, e.g., for ink jet papers and films. The metal oxide particles used in this application have a porous structure that differs significantly from... | 08/24/2004 |
| 6620514 | Nanostructured forms and layers and method for producing them using stable water-soluble precursors A process for preparing a composition for producing nanostructured mouldings and layers comprises contacting an aqueous and/or alcoholic sol of a compound of an element selected from silicon sand metals of the main groups and transition groups of the Peri... | 09/16/2003 |
| 6537665 | Nano-sized dispersible powders and method of making A hydrophilic powder such as silica, adapted for dispersion in organic solvents and polymers, is provided with a coating over the outer surface of the powder particles to modify the surface characteristic from polar to non-polar or organophilic, whereby t... | 03/25/2003 |
| 6420039 | Recording medium The present invention provides a recording medium comprising a substrate having a glossy coating thereon, wherein the glossy coating comprises cationic silica. The cationic silica comprises silica particles having a mean diameter of less than about 1 μm ... | 07/16/2002 |
| 6136867 | Aqueous suspension of silica and of aluminium sulphate or of alum, processes for the preparation and uses of the said suspension The invention relates to aqueous suspensions of precipitated silica and of aluminum sulphate which have a pH lower than 4 and a solids content of between 10 and 50% by weight and which, after a period at rest of 48 hours, are in the form of a gel. The gel... | 10/24/2000 |
| 5639412 | Substituted silica sol A method for producing high surface area, thermally stable, microporous porous ceramic materials involves replacing a portion of the silicon in a sol or gel comprising silica (silicon dioxide) with cations of another metal. The metal-substituted silica so... | 06/17/1997 |
| 5616286 | Process for the manufacture of organophilic clay Organically modified clays are advantageously prepared in a direct addition, low moisture process by mixing clay, a cationic, organic material, and an optional dispersant under high pressure conditions such that the cationic organic compound substitutes f... | 04/01/1997 |
| 5573674 | Activated silica sol A stable activated silica sol is made by reacting sodium aluminum sulfate and a solution of silica. This solution removes suspended particles from aqueous streams rapidly and effectively. The silica sol is stable for many days and thus can be prepared off... | 11/12/1996 |
| 5368833 | Silica sols having high surface area Silica sols having a high content of microgel and aluminum modified particles with high specific surface area. The sols can be prepared by a process comprising acidification of a water glass solution, alkalization at a certain dry substance content, parti... | 11/29/1994 |
| 5198490 | Aqueous sheet silicate dispersions, use of these dispersions as coating assistants and water-dilutable coating compositions containing sheet silicates The invention relates to dispersions which are obtainable from sheet silicates, a protective colloid and an aqueous dispersant and are suitable for the incorporation of sheet silicates into water-dilutable coating compositions. The dispersions according t... | 03/30/1993 |
| 5196177 | Production of stable aqueous silica sol A sol of flat silica particles (100-1000 nm in size) is produced by the following steps (a) to (d) from an acidic aqueous sol (S0) of negatively charged silica particles (7-30 nm in diameter) and an aqueous solution (B) of basic aluminum or zir... | 03/23/1993 |
| 4613454 | Metal oxide/silica sols A stable aqueous acidic metal oxide/silica sol which contains from 5-40% by weight SiO2, from 1-10.5% by weight of metal oxide, and a water-soluble anionic stabilizing compound selected from the group consisting of water-soluble anionic surfact... | 09/23/1986 |
| 4563298 | Metal oxide/silica sols A stable aqueous alkaline metal oxide/silica sol is obtained by adding a water-soluble amine to an acidic metal oxide/silica sol which contains from 5-40% by weight SiO2, from 1-10.5% by weight of metal oxide, and a water-soluble anionic stabil... | 01/07/1986 |
| 4514510 | Hydrogen enriched water swellable clay having reduced acid demand and stable at low pH A water swellable clay i.e. bentonite, hectorite, saponite or mixtures thereof, is slurried in water and contacted with a hydrogen ion exchange resin to replace a portion of the exchangeable sodium and other exchangeable cations with hydrogen, resulting i... | 04/30/1985 |
| 4451388 | Preparation of aluminum oxide coated silica sols using ultrafiltration New alumina coated silica sols are produced by a method which comprises mixing a concentrated deionized silica sol with concentrated solutions of trivalent acid aluminum salts, heating this premix to at least 90° C. for 1-15 minutes to form an alumina re... | 05/29/1984 |
| 4376178 | Process for the production of polyol-alkali metal silicate emulsion A stable polyol-alkali metal silicate emulsion is produced by mixing an aqueous solution of an alkali metal silicate or alkali metal metasilicate pentahydrate, a liquid polyol and a small amount of a salt of an alkali metal compound and a weak acid while ... | 03/08/1983 |
| 4336234 | Preparation of storage-stable, pumpable and pourable aluminosilicate suspensions by wet milling Storage-stable, pourable and pumpable silicate suspensions are prepared by wet milling of aluminosilicates, after the preparation of the latter, without intermediate drying.... | 06/22/1982 |
| 4181532 | Production of colloidal dispersions A colloidal dispersion is disclosed in which colloidal particles of an inorganic substance, and a compound of a Group IIA, or of a Group IIIA, or of a lanthanide (rare earth) element are dispersed throughout a liquid. The colloidal dispersion can be dried... | 01/01/1980 |
| 4179393 | Stable aqueous suspension of water-insoluble, calcium-binding aluminosilicates and organic suspending agents Stable, pumpable, aqueous suspensions of water-insoluble, calcium-binding aluminosilicates suitable as stock suspensions comprising (A) from 20% to 55% by weight of at least one finely-divided, water-insoluble silicate compound having a calcium-binding po... | 12/18/1979 |
| 4169075 | Process for the production of powdery washing agents by spray-drying A process for the preparation of powdery washing agent compositions by spray-drying compositions containing aqueous suspensions of water-insoluble, calcium-binding aluminosilicates with an improved stability against settling comprising at least 20% by wei... | 09/25/1979 |
| 4126574 | Surfactant-containing aluminosilicates and process This invention relates to cation-exchanging, water-insoluble aluminosilicates containing bound water and an ionic surface-active compound resistant to water hardness formers and having, for every mol of Al2 O3, from 0.7 to 1.5 mols C... | 11/21/1978 |
| 4069034 | Suspension fertilizers and method of producing same Suspension fertilizers containing humic acid as a crystallization inhibitor and crystal growth modifier. Suspension fertilizers containing from 0.05% to 3% humic acid and from 0.25%-3% bentonite have excellent stability as evidenced by a low concentration... | 01/17/1978 |
| 4005044 | Method of making aqueous antifoam compositions A new and improved method of making aqueous, emulsified antifoam compositions is provided in which a silicone oil, a silazane-treated silica filler and emulsifiers are used. The technique permits the silicone oil and silica filler to be added to the compo... | 01/25/1977 |
| 3956171 | Process for preparing stable positively charged alumina coated silica sols and product thereof Stable sols of positively charged colloidal silica are prepared from a water soluble basic aluminum salt and a negatively charged colloidal silica sol by introducing into the reaction mixture a carbonate, bicarbonate or phosphate salt which is soluble in ... | 05/11/1976 |
| 3954677 | Sulfonated aromatic-formaldehyde condensation products Sulfonated aromatic-formaldehyde condensation products are prepared by reacting a sulfonated aromatic compound with formaldehyde to form a condensation product which is neutralized or rendered alkaline by the addition of an aqueous solution of sodium hydr... | 05/04/1976 |
| 3936383 | Sol of ultra-fine particles of synthetic hectorite This invention relates to a sol of ultra-fine particles of synthetic hectorite prepared by swelling and cleaving Li-hectorite having a formula of Li1/3 Mg2-2/3 Li1/3 (Si4 O10)F2 or Na-hecto... | 02/03/1976 |
