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| Number | Title | Issue Date |
| 8088830 | Paper production with modified silica gels as microparticles Use of silica sols containing sulfonic acid groups and/or mercapto groups as microparticles in paper production, in particular for paper retention. ... | 01/03/2012 |
| 7951848 | Aqueous dispersions of partially hydrophobic silicas Aqueous dispersions of partly hydrophobic silica exhibit a smooth change in viscosity with pH over a wide pH range, without gelling or exhibiting local maxima. The dispersions have numerous uses, including use in O/W Pickering emulsions. ... | 05/31/2011 |
| 7888396 | Silicon dioxide dispersion Stable, aqueous dispersion containing silicon dioxide powder having a hydroxyl group density of 2.5 to 4.7 OH/nm2, which is obtained from a silicon dioxide powder produced by a flame hydrolysis process under acid conditions. The dispersion is produced by ... | 02/15/2011 |
| 7666916 | Flocculant, manufacturing method therefor, and flocculation method using the flocculant A flocculant, a manufacturing method therefor, and a flocculation method using the flocculant are provided such that a suspension of tap water treatment plant, sewage treatment plant, industrial drainage water or other service water or drainage water can be easily, ... | 02/23/2010 |
| 7629391 | Process for the preparation of aqueous suspensions of anionic colloidal silica having a neutral pH and applications thereof The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxan... | 12/08/2009 |
| RE39746 | Phosphoric esters and their use as dispersants The invention relates to phosphoric esters of the general formula I where X is 1 or 2; n is from 2 to 18; m and o are each from 2 to 100; k is from 2 to 4; R″ is H or a linear or branched alkyl radical; and R′ is an alkyl, al... | 07/31/2007 |
| 7192461 | High concentration silica slurry A high concentration silica slurry can be used for polishing of substrates, such as semiconductor materials. The slurry contains a silica powder dispersed in an solvent. The silica slurry has a silica concentration of more than 50% by weight and a viscosity of less ... | 03/20/2007 |
| 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 |
| 7015256 | Composition for forming photosensitive dielectric material, and transfer film, dielectric material and electronic parts using the same A photosensitive composition for forming a dielectric of the present invention comprising inorganic particles, an alkali developable resin and additives, wherein the additives comprise a compound having a quinonediazido group (C1), a compound containing at least two... | 03/21/2006 |
| 6890873 | Glass prepared from pyrogenically prepared silicon dioxide Pyrogenically prepared silicon dioxide with the following physicochemical properties: 1. Average particle size (D50 value) D50≧150 nm (dynamic light scattering, 30 wt %) 2. Viscosity (5 rpm,... | 05/10/2005 |
| 6750257 | Colloidal silica slurry The present invention provides the colloidal silica slurry which does not have a bad influence, such as corrosion, to a silicon wafer and wiring material on a silicon wafer and inhibits growth of microbes, and whereof preserving stability is high because stability o... | 06/15/2004 |
| 6599388 | Method for manufacturing a binder and use thereof The invention concerns a method for making a binder, especially for mineral wool products comprising the steps of dissolving a particulate mineral material having a glassy amnorphous structure in an aqueous solution, nucleating and stabilizing the so obta... | 07/29/2003 |
| 6569908 | Dispersion of silica particle agglomerates and process for producing the same The present invention also provides a process for producing a colloidal dispersion of silica particle agglomerates having a specific surface area, as determined by nitrogen adsorption method, of 100 m2 /g to 400 m2 /g, an average sec... | 05/27/2003 |
| 6500870 | Method for manufacturing of silica sols A method for production of high purity silica sols comprising the steps: (a) adding a phosphonic acid-based complexing agent to the silicic acid-containing solution forming complexes with metal cations present in said solution; (b) forming in said silicic... | 12/31/2002 |
| 6423130 | Phosphoric esters and their use as dispersants The invention relates to phosphoric esters of the general formula I ##STR1## where X is 1 or 2; n is from 2 to 18; m and o are each from 2 to 100; k is from 2 to 4; R" is H or a linear or branched alkyl radical; and R' is an alkyl, alkaryl, alkenyl, or su... | 07/23/2002 |
| 6386002 | Process entailing sol-gel production of silica glass A silica-water dispersion suitable for use as a sol for sol-gel fabrication is produced from a silica-water mixture with addition of alkaline agent. The agent functions to increase viscosity so as to improve dispersing efficiency during shear mixing.... | 05/14/2002 |
| 6379500 | Silica-based sols An aqueous silica-based sol comprising a nitrogen-containing organic compound and silica-based particles with a specific surface area of at least 300 square meters per gram of silica. The invention further relates to a process for the production of an aqu... | 04/30/2002 |
| 6380265 | Dispersion of fine porous inorganic oxide particles and processes for preparing same A dispersion comprising fine porous inorganic oxide particles, e.g., silica gel particles, wherein the particles have a median particle size below three microns. The dispersed particles have a porosity after drying in which at least about 0.50 cc/g of por... | 04/30/2002 |
| 6343490 | Processing entailing sol-gel fabrication of silica glass Silica sols exhibiting desirable yield-dilatancy are fabricated. A mixture comprising silica, water, and a pH-adjusting agent is provided, and the mixture is shear-mixed. The desirable properties of the resultant sol are attained by using a concentration ... | 02/05/2002 |
| 6328894 | Processes of purifying a dispersion and making inkjet inks A process to purify and classify a dispersion containing stabilized particles having counterions and ions as well as free species is disclosed. The solution may comprise an aqueous media, a solvent media, or a combination of both and can include more than... | 12/11/2001 |
| 6310123 | Phosphoric esters and their use as dispersants The invention relates to phosphoric esters of the general formula (I): ##STR1## wherein x is 1 or 2; n is a number from 2 to 18; m and n are each a number from 2 to 100; k is a number from 2 to 4; R" is H or a linear or branched alkyl radical which may be substitut... | 10/30/2001 |
| 6210751 | Process for preparing organically modified aerogels in which the salts formed are precipitated out The present invention relates to a process for the preparation of organically modified aerogels, comprising a) the preparation of a silicic acid sol having a pH of ࣘ4.0 from an aqueous water glass solution, with the aid of at least one organic and/or in... | 04/03/2001 |
| 6068769 | Aqueous dispersion slurry of inorganic particles and production methods thereof The present invention provides aqueous dispersion slurry of inorganic particles which is so stable as not to increase in viscosity, gel or sediment even if stored for a long time and therefore can be used as raw materials for, for example, cosmetics, pain... | 05/30/2000 |
| 5967964 | Aqueous dispersion slurry of inorganic particles and production methods thereof The present invention provides production methods for aqueous dispersion slurry of inorganic particles which are so stable as not to increase in viscosity, gel or sediment even if stored for a long time and whose average particle diameter is 0.01 to 2 μm... | 10/19/1999 |
| 5873931 | Coating composition having anti-reflective and anti-fogging properties A coating composition which imparts anti-reflective and anti-fog properties to substrates coated therewith. The coating composition utilizes an inorganic metal oxide in combination with particular anionic surfactants. The coating compositions are particul... | 02/23/1999 |
| 5814407 | Glycosylated particle of latex or of inorganic oxide and process for the preparation thereof The invention relates to a glycosylated particle of latex or of inorganic oxide, exhibiting functional radicals at the surface. At least a proportion of said functional radicals is joined to a glycosyl residue. The particles preferably consist either of polyme... | 09/29/1998 |
| 5284512 | Polyaspartic acid and its salts for dispersing suspended solids Water soluble salts of a ଲ-polyaspartic acid, i.e., a polyaspartic acid having predominantly beta linkages in the amino acid residue chain thereof, are eminently well suited as dispersants for particulate matter in an aqueous medium.... | 02/08/1994 |
| 5221497 | Elongated-shaped silica sol and method for preparing the same A method for preparing a stable silica sol having an SiO2 concentration of 40% or less, the colloidal particles of said silica having a particle size of 40 to 500 nm, as measured by dynamic light-scattering and having an elongated shape having ... | 06/22/1993 |
| 5185037 | Process for the production of organosilica sol and surface treating agent containing same An organosilica sol having an increased pH is obtained by treating an organosilica sol having pH in an acidic region with an alkali. The organosilica sol is useful as a surface treating agent since it has not only penetrativity into members such as concre... | 02/09/1993 |
| 5021201 | Process for preparing uniform discoid particles Uniform discoid particles made of at least one member selected from the group consisting of a natural high molecular substance, a synthetic high molecular substance and an inorganic compound, wherein each particle has a diameter of 20 to 2,000 μm and a t... | 06/04/1991 |
| 4915870 | Process for the manufacture of potassium stabilized silica sols A method for producing a silica sols containing less than 150 ppm sodium haivng an average particle size of 2-110 nm, and a particle size distribution with a coefficient dispersion of 0.16-0.4. The silica sols are produced using a KOH heal to which aliquo... | 04/10/1990 |
| 4788046 | Method for producing materials for co-sintering This invention relates to glass-ceramic packages for integrated circuits containing multi-layer, interconnected thick film wiring patterns obtained by co-sintering a glass-ceramic composite and copper, silver, palladium or gold based conductors at tempera... | 11/29/1988 |
| 4772660 | Oxide sol using reactive monomer as dispersion medium The present invention provides an oxide sol hardened by the irradiation of actinic rays such as UV ray, electron ray, γ ray, X ray etc., by heating or by using a catalyst. Said oxide sol comprises not less than 20% by weight of an oxide such as SiO2... | 09/20/1988 |
| 4766000 | Prevention of chill haze in beer The components of chill haze in beer can be removed by contacting said beer with a combination of silica hydrogel and partially hydrophobic adsorbent(s) for a time sufficient to complete adsorption of the components and removing said adsorbents from the b... | 08/23/1988 |
| 4750942 | Rinse aid The use of a non-plate-shaped colloid, e.g. a silica in a rinse-aid composition for use after a dishwashing operation reduces the drying time and the formation of spots on the rinsed articles when dry.... | 06/14/1988 |
| 4704295 | Enteric film-coating compositions A non-toxic edible enteric film coating dry powder and aqueous enteric coating suspension for coating pharmaceutical tablets and the like; the enteric coated tablets; and methods of making the enteric coating dry powder, the aqueous coating suspension, an... | 11/03/1987 |
| 4624800 | Method for producing aqueous, low-alkali metal, low-alumina silica sols A method for producing an aqueous silica sol is described, comprising admixing a fine silica powder having an ultimate particle size of 5 to 200 millimicrons with an aqueous medium at a pH not higher than 5 while applying ultrasonic vibrations having a fr... | 11/25/1986 |
| 4569920 | Preparation of inorganic particle slurries Novel aqueous inorganic particle slurries, wherein some of the particles have had their charge potential altered to a sufficient extent to prevent segregation or settling of the particles, are described, along with a method for their preparation. The meth... | 02/11/1986 |
| 4548733 | Anionic siliconates of silylorganocarboxylates, sulfonates and phosphonates to reduce viscosities of particulate slurries What is disclosed is a method of reducing the viscosities of aqueous slurries of particulate materials using anionic siliconates of silylorganocarboxylates, sulfonates and phosphonates and the compositions that are obtained thereby. An example is the use ... | 10/22/1985 |
| 4537699 | Process for improving the rheological properties of a suspension of precipitated silica The present invention provides a process for improving the rheological properties of a suspension of precipitated silica by the addition of an aluminum compound, thereby producing a sprayable suspension or slurry with a pH of greater than 3.5, a solids co... | 08/27/1985 |
