Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8148434 | Silica-based sols and their production and use A process for producing an aqueous silica-based sol is disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or h... | 04/03/2012 |
| 7919535 | Silica-based sols The invention relates to an aqueous sol containing silica-based particles which sol has a specific surface area of at least 115 m2/g aqueous sol and an S-value within the range of from 10 to 45% or contains silica-based particles having a specific surface... | 04/05/2011 |
| 7851513 | Silica-based sols and their production and use A process for producing aqueous silica-based sols, having an S value from 15 to 25%, mole ratio Si:Al from 20:1 to 50:1, mole ratio Si:X, where X=alkali metal, from 5:1 to 17:1, SiO2 content of at least 5% by weight and containing silica-based particles having a spe... | 12/14/2010 |
| 7659315 | Use of polyaminomethylenephosphonates as dispersing agents A method of use of polyaminomethylenephosphonates as dispersing, wetting, and/or stabilizing agents in formulations for cements, detergents, ceramic materials, dyes, synthetic resins, rubbers, drilling fluids, and for reverse osmosis includes the step of adding a po... | 02/09/2010 |
| 7608644 | Aqueous silica-containing composition The present invention refers to a process for the production of paper from a suspension containing cellulosic fibers, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition compr... | 10/27/2009 |
| 7368183 | Particles, aqueous dispersion and film of titanium oxide, and preparation thereof An aqueous titanium oxide-dispersed sol comprising titanium oxide particles dispersed in water, said sol comprising chloride ions in an amount of 50 to 10,000 ppm by weight as the chlorine element. Titanium tetrachloride is hydrolyzed to form an aqueous titanium oxi... | 05/06/2008 |
| 7341782 | Polymer composition containing organic modified layered silicate, film and gas barrier film as well as substrate and image display device using them A polymer composition includes a polymer having a glass transition temperature of 120° C. to 400° C. as a simple substance of the polymer and an organic modified layered silicate having a decomposition starting temperature of 190° C. to 350° C. and contained in ... | 03/11/2008 |
| 7300876 | Method for cleaning slurry particles from a surface polished by chemical mechanical polishing A method is provided to clean slurry particles from a surface in which tungsten and dielectric are coexposed after a dielectric CMP step. Such a surface is formed when tungsten features are patterned and etched, the tungsten features are covered with dielectric, and... | 11/27/2007 |
| 7279223 | Underfill composition and packaged solid state device An underfill composition with enhanced adhesion and improved resistance to cracking comprising an epoxy resin in combination with a difunctional siloxane anhydride epoxy hardener and optional reagents. In some embodiments, the epoxy resin includes a functionalized c... | 10/09/2007 |
| 7189776 | Aqueous composition The present invention relates to an aqueous composition comprising anionic organic polymeric particles and colloidal anionic silica-based particles. The anionic organic polymeric particles are obtainable by polymerising one or more ethylenically unsaturated monomers... | 03/13/2007 |
| 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 |
| 7163358 | Injection grouting The invention relates to the use of a composition for injection grouting obtainable by mixing an alkali metal silicate or an organic silicate, colloidal silica particles, and at least one gelling agent, wherein the weight ratio of colloidal silica to silicate is fro... | 01/16/2007 |
| 7159421 | Manufacture of planar waveguides using sol-gel techniques Silica sol techniques are described for making thick silica or silica based films useful for planar optical waveguides. The process involves coating of a colloidal silica sol onto a substrate, drying the sol, and consolidating the dried sol to form the planar wavegu... | 01/09/2007 |
| 7156955 | Papermaking process using a specified NSF to silica-based particle ratio The present invention refers to a process for the production of paper from a suspension containing cellulosic fibers, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition compr... | 01/02/2007 |
| 7053125 | Controlled dispersion of colloidal suspension by comb polymers Comb polymers are used as dispersants to increase the stability of colloidal suspensions containing multivalent or high concentrations of monovalent ions. Stabilized colloidal suspensions and methods of forming stabilized colloidal suspensions are described, includi... | 05/30/2006 |
| 7033670 | LCT-epoxy polymers with HTC-oligomers and method for making the same The present invention relates to homogenous LCT-epoxy polymers with oligomers containing grafted nano-sized HTC-materials and methods for making the same. The homogenous LCT-epoxy polymers with oligomers containing grafted nano-sized HTC-materials comprise HTC-oligo... | 04/25/2006 |
| 6929395 | Methods and apparatus for reclaiming components of concrete and other slurries A reclamation system for the recycling of components of fluid concrete (such as concrete fines) and for concrete plant wastewater includes a slurry batch supply vessel which meters process water to a concrete batch mixing plant for use in concrete production process... | 08/16/2005 |
| 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 |
| 6905814 | Use of film-forming titanium dioxide dispersions for cleaning and disinfecting surfaces, film-forming titanium dioxide dispersions The invention concerns the use of a film-forming titanium dioxide dispersion for cleaning and disinfecting surfaces exposed to light, by depositing a film of titanium dioxide nanoparticles on said surfaces, the continuous phase of said dispersion comprising water an... | 06/14/2005 |
| 6902653 | Apparatus and method for photocatalytic purification and disinfection of fluids An apparatus and method for the photocatalytic conversion of contaminants in a fluid stream. Fluid is directed through a semitransparent packed bed or an open cell, three dimensionally reticulated, fluid permeable, semiconductor unit. Within the unit, a semiconducto... | 06/07/2005 |
| 6884753 | Method for producing ceramic dispersion composition The present invention provides a method for producing a ceramic dispersion composition, the method comprising the step of heating a mixture of a ceramic powder having a photocatalytic activity, a dispersant and a solvent at a temperature of about 70° C. or higher w... | 04/26/2005 |
| 6869256 | Sealing composition and its use A method for sealing rock or soil comprising inserting a sealing composition obtained by mixing a silica sol and at least one gelling agent, wherein the silica sol has an S-value higher than about 72%, a method for preparing the sealing composition and the compositi... | 03/22/2005 |
| 6857824 | Sealing composition and its use The present invention relates to a method for sealing rock or soil comprising inserting a sealing composition obtained by mixing a silica sol and at least one gelling agent, wherein the silica sol has an S-value higher than about 72%, a method for preparing the seal... | 02/22/2005 |
| 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 |
| 6774147 | Particles, aqueous dispersion and film of titanium oxide, and preparation thereof An aqueous titanium oxide-dispersed sol comprising titanium oxide particles dispersed in water, said sol comprising chloride ions in an amount of 50 to 10,000 ppm by weight as the chlorine element. Titanium tetrachloride is hydrolyzed to form an aqueous titanium oxi... | 08/10/2004 |
| 6689818 | Dispersant compositions A dispersant composition comprising (A) 20-80% by weight of an acetylene glycol or ethoxylated acetylene glycol and (B) 20-80% by weight of a graft product of an allyl alcohol-maleic anhydride-styrene copolymer with a polyoxyalkylene monoalkyl ether, comp... | 02/10/2004 |
| 6660277 | Gel matrix non-emulsion composition containing two clay gels A cosmetic composition comprising a lipophilic clay gel and a hydrophilic clay gel. The two gels are combined or formed in situ to create a gel matrix. This matrix functions like an emulsion to deliver water and oil to the skin or other surface, but can b... | 12/09/2003 |
| 6555510 | Bis(perfluoroalkanesulfonyl)imides and their salts as surfactants/additives for applications having extreme environments and methods therefor The present invention provides for the use of bis(perfluoroalkanesulfonyl)imide and its salts as surfactants or additives applications having an extreme environment.... | 04/29/2003 |
| 6552091 | Block-copolymeric polyalkylene oxides containing styrene oxide, obtained by alkoxylation, and their use The invention relates to block-copolymeric polyalkylene oxides containing styrene oxide, obtained by alkoxylation, and their use as low-foam pigment wetting agents in aqueous pigment pastes with or without cosolvent and in aqueous and low-solvent coating ... | 04/22/2003 |
| 6479031 | Particles, aqueous dispersion and film of titanium oxide, and preparation thereof An aqueous titanium oxide-dispersed sol comprising titanium oxide particles dispersed in water, said sol comprising chloride ions in an amount of 50 to 10,000 ppm by weight as the chlorine element. Titanium tetrachloride is hydrolyzed to form an aqueous t... | 11/12/2002 |
| 6444601 | Purified attapulgite clay A method for producing an Attapulgite clay (Fuller's Earth) that significantly removes other types of clays and minerals, resulting in improved performance. A unique dispersant is used that will fully disperse the individual Attapulgite particles in water... | 09/03/2002 |
| 6432151 | Preparing method of silica slurry for wafer polishing Disclosed herein is a method of preparing silica slurry for wafer polishing. This method includes pre-treating relatively inexpensive and commercially available fumed or colloidal silica particles as a seed by a settling, a crushing using a ball mill and ... | 08/13/2002 |
| 6372805 | Colloids comprising amorphous borosilicate Colloids comprising amorphous borosilicate particles, wherein said borosilicate particles are not borosilicate glass; are described and claimed. These colloids have been found to be useful in aqueous systems, specially in papermaking.... | 04/16/2002 |
| 6340711 | Particles aqueous dispersion and film of titanium oxide and preparation thereof An aqueous titanium oxide-dispersed sol comprising titanium oxide particles dispersed in water, said sol comprising chloride ions in an amount of 50 to 10,000 ppm by weight as the chlorine element. Titanium tetrachloride is hydrolyzed to form an aqueous t... | 01/22/2002 |
| 6319873 | Biological activator for a septic tank This invention relates to a biological activator for a septic tank of the type comprising a product in the form of solid particles, which is non-corrosive, non-toxic, finely divided, and of large specific area, comprising a colloidal phase in suspension a... | 11/20/2001 |
| 6310104 | Process for producing colloidal borosilicates The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or s... | 10/30/2001 |
| 6291535 | Silica-magnesium fluoride hydrate composite sols and process for their preparation A sol comprising silica-magnesium fluoride hydrate composite colloidal particles used in an anti-reflection coating material for forming an anti-reflection coating and a process for its preparation are provided. A sol comprising silica-magnesium fluoride ... | 09/18/2001 |
| 6267812 | Aqueous dispersion of pigment(s) and/or filler(s) containing a particular saccharide composition The present invention relates to an aqueous dispersion of pigment(s) and/or filler(s) containing, as an additive, a saccharide composition containing at least 30% of hydrogentated monosaccharide(s) and/or disaccharide(s). The saccharide composition contai... | 07/31/2001 |
| 6245310 | Process for the manufacture of dispersible alumino-silicates The present invention relates to a process for the manufacture of high-purity alumino-silicates which are dispersible in aqueous and/or aqueous-acidic media by hydrolysis of aluminium compounds and silicic acid compounds and hydrothermal treatment.... | 06/12/2001 |
