Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8138230 | Chi (χ)-alumina dispersion and application to coating slurry of digital printing medium A chi (χ)-alumina dispersion and coating slurry of digital printing medium containing the same is disclosed, which includes flaked porous χ-alumina nanoparticles with high specific surface area obtained by subjecting gibbsite to thermal treating, physical wet-mill... | 03/20/2012 |
| 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 |
| 7208446 | Quasi-crystalline boehmites containing additives The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, rare earth metals, transiti... | 04/24/2007 |
| 7169322 | Aqueous dispersion, process for its production and use Aqueous dispersion containing a silicon-aluminum mixed oxide powder, the powder containing 0.1 to 99.9 wt. % Al2O3 and Si—O—Al-bonds. The dispersion can be produced using dispersing and/or grinding devices which a achieve an energy input of... | 01/30/2007 |
| 7060362 | Labels and labeling process This invention relates to labels. In one embodiment, the labels comprise a polymer facestock layer, a nano-porous layer underlying the facestock, and a metal layer overlying the facestock or underlying the facestock between the facestock and the nano-porous layer. I... | 06/13/2006 |
| 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 |
| 6955771 | Metal oxide sols as nanoscale additives for polymers Disclosed are metal oxide sols made by mixing at least one metal alkoxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal; at least one organosilane; at least one boron oxide compound selected from the grou... | 10/18/2005 |
| 6844026 | Preparation of particles by hydrolysis of a metal cation in the presence of a polymer A subject matter of the invention is a process for the preparation of particles comprising at least one metal ion, which comprises the stage of bringing into contact a precursor a metal cation, optionally partially hydrolyzed, with at least one water-soluble comb co... | 01/18/2005 |
| 6838486 | Preparation of metal nanoparticles and nanocomposites therefrom Disclosed are nanocomposites made of guest metal nanoparticles and metal oxide sols made by mixing at least one metal alkoxide, at least one organosilane, at least one boron oxide compound, and a liquid. Also disclosed are dielectric composites containing a dielectr... | 01/04/2005 |
| 6649661 | Dispersions of alumina hydrate A dispersion of alumina hydrate comprises an alumina hydrate containing 0.1 to 1.0% by weight of a nitrate anion and having an average pore radius of 20 to 200 Å and a half breadth of pore radius distribution of 20 to 150 Å and deionized water. Another ... | 11/18/2003 |
| 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 |
| 6617362 | Method of making cationic pigment slurries Cationically dispersed slurries of alumina pigments, which formed by a process including the combination of one or more alumina pigments, a nonionic wetting agent or nonionic polymer and a cationic interfacial modifier in an aqueous medium in the absence ... | 09/09/2003 |
| 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 |
| 6500871 | Process for preparing colloids of particles coming from the hydrolysis of a salt of a metal cation Process for preparing mineral particles in the form of colloids in aqueous dispersion of controlled size from a precursor, comprising: a) the step of putting the said precursor, which is a mineral salt of a metal cation, into aqueous solution; b) the comp... | 12/31/2002 |
| 6476083 | Alumina dispersant, alumina dispersion liquid, agent for treating inkjet-printing materials, and inkjet-printing materials This invention provides an alumina dispersant mainly comprised of a nitrogen-containing monocarboxylic acid, an alumina dispersion liquid comprised of alumina particles dispersed well in an aqueous dispersing medium, a treating agent for use in making ink... | 11/05/2002 |
| 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 |
| 6312619 | Method for producing water-dispersible alpha-alumina monohydrate A method of enhancing the dispersibility of alpha-alumina monohydrate wherein there is formed a mixture of an alpha-alumnina monohydrate, water, and a dispersibility enhancer comprising an effective amount of a monobasic acid, a salt selected from the gro... | 11/06/2001 |
| 6310143 | Derivatized polycarboxylate dispersants The present invention is directed to derivatized polycarboxylate dispersants for cementitious mixtures, including those mixtures with high percentages of pozzolan cement replacement and dry cast applications. In particular, the invention is directed to a ... | 10/30/2001 |
| 6224846 | Method for making modified boehmite alumina A process for making a modified boehmite alumina comprising reacting at elevated temperatures a boehmite alumina with a compound having the formula: X(SO3 M)n wherein X is an organic moiety, M in a monovalent cation, and n is an inte... | 05/01/2001 |
| 6169119 | Metal oxide sols and process for making the same In one embodiment, the present invention relates to metal oxide sols comprising a liquid and a polycondensation product of about 2 to about 5,000 monomers of a partially hydrolyzed chelated metal oxide precursor. In another embodiment, the present inventi... | 01/02/2001 |
| 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 |
| 6004889 | Composition for antistatic finish Disclosed is a compositions for antistatic finish, which is useful for antistatic stockings, comprising (a) 100 parts by weight of colloidal or ultrafine granular alumina on a solid basis, (b) 3 parts to 50 parts by weight of a binder on a solid basis, (c... | 12/21/1999 |
| 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 |
| 5928127 | Alumina sol and recording sheet An alumina sol having colloidal particles of alumina hydrate dispersed in an aqueous solvent, said sol containing a compound which has a sulfonic acid group in its molecule and which, when made into a 1 wt % aqueous solution, has a pH of at most 4.... | 07/27/1999 |
| 5889103 | Polymer scale preventive agent comprising a condensation product of a quinone compound A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing (A) a condensation product having a molecular weight of 400 to 50,000 obtained by condensin... | 03/30/1999 |
| 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 |
| 5837634 | Process for producing stabilized alumina having enhanced resistance to loss of surface area at high temperatures A process for preparing a stabilized alumina wherein an aqueous slurry of a precursor boehmite alumina is admixed with an effective amount of a stabilizer such as a water-soluble salt of a polyvalent metal cation of Groups IIA and IIIB of the periodic tab... | 11/17/1998 |
| 5756001 | High concentration alumina sol of low viscosity An alumina sol having an alumina solid content of at least 10 wt % and a viscosity of not higher than 5 Pa.s measured by a Brookfield viscometer and containing a cation other than a hydrogen ion in a total ion equivalent concentration in the range of from... | 05/26/1998 |
| 5633310 | Water-soluble copolymers of vinylacetate and maleamic acids and use as fluidizers high-range water-reducers for aqueous suspensions Novel water-soluble linear copolymers of vinylacetate with monomeric addition products of amines, amino acids, amino groups containing aromatic sulfonic acids, amino alcohols of maleic anthydride. The copolymers are useful as fluidizers in water containin... | 05/27/1997 |
| 5591380 | Preparation of alumina-silica sol gel compositions A method is taught for the preparation of mixed metal oxide sols particularly suited for the deposition of protective mixed metal oxide coatings upon a substrate.... | 01/07/1997 |
| 5578245 | Method of preparing a stable colloid of submicron particles The invention provides submicron particles. The invention further provides submicron particles which are dispersed in an aqueous colloid. The invention further provides a method of forming the stable dispersion which includes providing an ion exchange res... | 11/26/1996 |
| 5518660 | Aqueous colloidal dispersions of sub-micrometer alumina particles An aqueous alumina dispersion prepared from high quality, submicrometer alumina powder, suitable for manufacturing fine ceramic products, is disclosed. The sub-micrometer alumina particles have a surface area of 2.5 to 50 m2 per gram of the alu... | 05/21/1996 |
| 5503771 | Process for susupension of ceramic or metal particles using biologically produced polymers A method for producing a highly loaded, aqueous suspension having a pourable viscosity and containing from 20 to 50 volume percent colloidal ceramic or metal particles. A biologically produced polymer dispersant having a high density of carboxyl functiona... | 04/02/1996 |
| 5407479 | Sol-gel ଲ-aluminum titanate thin film coating ଲ-Al2 TiO5 protective coatings have been developed for both dense and porous ceramics such as SiC and Si3 N4 using a chemical solution processing method involving the hydrolysis and condensation of aluminu... | 04/18/1995 |
| 5393461 | Preparation of stable aqueous emulsions of water-insoluble particles A process for preparing an emulsion of water-insoluble particles useful in the cosmetic, pharmaceutical, paint and ink industries comprising: treating the water-insoluble particles with a wetting agent in an organic solvent; combining the water-insoluble parti... | 02/28/1995 |
| 5378400 | Preparation of metal oxide sols by electrolysis The invention relates to the preparation of single-multi-component metal oxide sols by hydrolysis of an aqueous metal salt solution or a solution of a metal salt mixture by direct electrolysis at -20° to 50° C.... | 01/03/1995 |
| 5302319 | Preparation of sol gel composition for electrophoresis A method is taught for the preparation of metal oxide sols particularly suited for the electrophoretic deposition of metal oxide coatings upon a fiber core.... | 04/12/1994 |
| 5151218 | Phosphoric acid esters, method of producing them, and use thereof as dispersants Phosphoric acid esters and their salts corresponding to the formula (I): ##STR1## wherein R represents an aliphatic, cycloaliphatic and/or aromatic moiety having no Zerewitinoff hydrogen, containing at least one ether oxygen atom (--O--) and at least... | 09/29/1992 |
| 5112418 | Method for bonding joints with an organic adhesive using a water soluble silane modified amorphous hydrated metal oxide primer A method of bonding a plurality of articles together with an organic adhesive by using a primer that provides increased crack propagation resistance without the use of organic solvents. The method comprises reacting aluminum, titanium silicon, iron, or zi... | 05/12/1992 |
| 5076846 | Highly concentrated aqueous suspension of minerals and/or fillers and/or pigments, stabilized with one or more polyampholytes An aqueous suspension of minerals and/or fillers and/or pigments having a solid content ࣙ60% by weight, the mineral or the filler or the pigment being dispersed with one or more dispersing agents, is characterized in that the dispersing agent contains o... | 12/31/1991 |
