Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 5589150 | Method for preparing spherular silica gel particles In the present invention, minute spherular silica gel particles suitable as polymer catalyst carriers can easily be obtained without using organic substances simply by controlling the moisture content in a slurry of silica hydrogel particles and water. Th... | 12/31/1996 |
| 5578101 | Method of making a sol-gel glass body and removing same from mold The disclosed method of making a glass body by a sol/gel process comprises electrochemically assisted release of the gel body from the mold in which the body was formed. More specifically, the method involves gelation of a sol in a mold that comprises a f... | 11/26/1996 |
| 5576262 | Glycol ether compounds for the production of polyolefin catalysts and supports A method of making chromium containing oxide gel-based catalyst wherein an oxide hydrogel is convened to a xerogel by azeotropic distillation of a mixture of said hydrogel and an organic solvent, the improvement comprising impregnating the gel with a chro... | 11/19/1996 |
| 5573983 | Fine silica tube and process for making same A fine silica tube composed of silica gel and having an outer diameter of 0.05 to 2 μm wherein the cylindrical wall portion of the tube has a cross-section defined by a substantially square outer periphery and a substantially square vacant center, or by ... | 11/12/1996 |
| 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 |
| 5571494 | Temperature-activated polysilicic acids A temperature-activated polysilicic acid is prepared by heating an acidified aqueous alkali metal silicate. The temperature-activated polysilicic acid is used in the production of paper for improvement of retention and water removal.... | 11/05/1996 |
| 5565142 | Preparation of high porosity xerogels by chemical surface modification. This invention provides an extremely porous xerogel dried at vacuum-to-below supercritical pressures but having the properties of aerogels which are typically dried at supercritical pressures. This is done by reacting the internal pore surface of the wet ... | 10/15/1996 |
| 5565014 | Process of manufacturing a vitreous silica product including hydrothermally drying a collordal sol-gel Sol-gel processing of a silica glass body is facilitated by rapid drying. The body, having been heated to a temperature of about 200° C. in a hermetically sealed vessel, is vented while reducing temperature. Termination of drying coincides with reduction... | 10/15/1996 |
| 5562752 | Process of manufacturing vitreous silica product including hydrothermally treating a colloidal sol-gel Heating a wet colloidal gel body in an autoclave above its 1-atmosphere boiling point, under rigorously defined conditions, avoids shrinkage during subsequent drying. As a consequence, drying rates may be increased, and handling care becomes less critical... | 10/08/1996 |
| 5558849 | Process for making inorganic gels A process for making inorganic gels by reaction of tetraalkoxy orthosilicates, tetraalkoxy titanates and tetraalkoxy zirconates with strong carboxylic acids. Water need not be present initially as a reactant. Optically clear, very small pore size, narrow ... | 09/24/1996 |
| 5503820 | Method for preparing low-concentration polysilicate microgels An improved method for preparing low-concentration polysilicate microgels from a water soluble silicate and a strong acid in which the silicate and acid are mixed at a rate to produce a Reynolds number of at least 4000, the mixture is aged and then dilute... | 04/02/1996 |
| 5500402 | Method for the manufacture of a contact body for the exchange of moisture or heat A method for treating a contact body for the exchange of heat or moisture comprises impregnating a contact body with waterglass and treating the impregnated body in acidic and basic environments to form a controlled pore structure.... | 03/19/1996 |
| 5496527 | Process of forming a hydrophobic aerogel A hydrophobic aerogel having excellent transparency is formed by the following process of the present invention. That is, a first gel having a SiO2 skeleton structure is prepared by hydrolysis and condensation of an alkoxysilane compound in the... | 03/05/1996 |
| 5480582 | Process for synthesizing amorphous silica microspheres with fluorescence behavior A process for synthesizing amorphous silica microspheres having fluorescence behavior includes the steps of placing into a container an organosilicon precursorand with a highly acidic solution and rinsing with a solvate to remove excess of the organosilic... | 01/02/1996 |
| 5441718 | Process for making inorganic gels A process for making inorganic gels by reaction of tetraalkoxy orthosilicates, tetraalkoxy titanates and tetraalkoxy zirconates with strong carboxylic acids. Water need not be present initially as a reactant. Optically clear, very small pore size, narrow ... | 08/15/1995 |
| 5425930 | Process for forming large silica spheres by low temperature nucleation A process for producing microspheres of silica having a maximum diameter of at least 2.5 μm particularly about 2.5 μm to 10 μm from the hydrolysis of a silica precursor, such as a tetraalkoxysilane, which is characterized by employing precursor solutio... | 06/20/1995 |
| 5419888 | Low temperature method of making very high structure silica Precipitated silica gels having high surface areas and low oil absorption values are produced by a low temperature synthesis precipitation process. The precipitated silicas have unique flatting characteristics and are additionally useful as conditioning a... | 05/30/1995 |
| 5409683 | Method for producing metal oxide aerogels A two-step hydrolysis-condensation method was developed to form metal oxide aerogels of any density, including densities of less than 0.003g/cm3 and greater than 0.27g/cm3. High purity metal alkoxide is reacted with water, alcohol so... | 04/25/1995 |
| 5399535 | Reticulated ceramic products A reticulated ceramic product is provided having from about 5 to about 95 percent, preferably from about 10 to about 90, percent of the total porosity attributable to mesopores. Reticulated ceramic products provided include silicon oxide, aluminum oxide, ... | 03/21/1995 |
| 5395604 | Silica powders for powder evacuated thermal insulating panel and method A powder evacuated thermal insulating panel using generally spherical and porous silica particles of a median size less than about 100 nanometers in diameter, a pour packing density of about 0.4 to 0.6 g/cm3 and an external surface area in the ... | 03/07/1995 |
| 5380510 | Silica gel manufactured by a hydrothermal polymerization following gelatization of silica hydrogels This invention provides a method for manufacturing silica gels in a form of scales or needles having a pore volume and a specific surface area being relatively large and being controlled. Silicic acid sol is frozen, crystallized and deposited in gaps amon... | 01/10/1995 |
| 5376348 | Method for making silica gel wtih a large active surface area A method is described for making silica gel having a large active surface area suitable for use as an adsorbent-separator of gases and liquids in hermetically sealed acid accumulators and as a filler in the fabrication of rubber articles. The method produ... | 12/27/1994 |
| 5376347 | Uniform inorganic micropheres and production thereof A method of producing uniform inorganic microspheres with a particle size of 0.01 to 500 μm by injecting an aqueous solution containing a particle-forming material into an organic solvent. The method includes injecting the aqueous solution into the organ... | 12/27/1994 |
| 5372796 | Metal oxide-polymer composites A method of making metal oxide clusters in a single stage by reacting a metal oxide with a substoichiometric amount of an acid in the presence of an oxide particle growth terminator and solubilizer. A method of making a ceramer is also disclosed in which ... | 12/13/1994 |
| 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 |
| 5366645 | Anti-blocking agent containing modified amorphous silica A modified amorphous silica is described which, apart from optionally present usual additives, comprises 40 to 85 wt-% silica and 60 to 15 wt-% paraffin, silicone or vegetable oil and/or ethylene glycol. The modified amorphous silica is prepared by bringi... | 11/22/1994 |
| 5354548 | Porous three-dimensional inorganic oxide structure with myriad cavities interconnected by holes This invention provides a three dimensional inorganic oxide structure comprising a myriad of cavities interconnected by holes having a narrow pore size distribution, in which the diameters of the cavities is in the range from 1 to 50 .mu.m and that of the... | 10/11/1994 |
| 5352529 | Lightweight thrust vectoring panel A thrust vectoring panel which is a hybrid ceramic/ceramic composite consisting of three layers of lightweight materials, the anisotropic properties of which are manipulated such that the properties of the materials, i.e., the coefficient of thermal expan... | 10/04/1994 |
| 5304364 | Method for preparing spherical inorganic oxide-based materials having monomodal particle size distribution A method for preparing inorganic oxide-based materials of spherical form with substantially monomodal distribution, consisting of forming a sol of at least one of the inorganic oxides of interest, adding to said sol a solvent immiscible with the sol, fine... | 04/19/1994 |
| 5294480 | Moldings or sheets made from silica aerogels A molding based on supercritically dried silica aerogel parts in the form of spherical particles having a diameter of from 0.1 to 10 mm or sheet-like pieces having a thickness of from 2 to 30 mm and a diameter of from 1 to 5 cm, wherein the molding is pro... | 03/15/1994 |
| 5279807 | Method for preparing low-concentration polysilicate microgels An improved method and apparatus for preparing low-concentration polysilicate microgels from a water soluble silicate and a strong acid in which the silicate and acid are mixed at a rate to produce a Reynolds number of at least 4000, the mixture is aged a... | 01/18/1994 |
| 5275796 | Method for producing metal oxide aerogels having densities less than 0.02 g/cc A two-step method is described for making transparent aerogels which have a density of less than 0.003 g/cm3 to those with a density of more than 0.8 g/cm3, by a sol/gel process and supercritical extraction. Condensed metal oxide int... | 01/04/1994 |
| 5270027 | Process of preparing high-porosity silica xerogels using alkanolamines The invention relates to high-porosity silica xerogels and a process for their preparation consisting of subjecting silica alcogels to thermal treatment in the presence of organic compounds containing amino and hydroxyl groups. The xerogels are characteri... | 12/14/1993 |
| 5266533 | Black glass ceramic from rapid pyrolysis in oxygen-containing atmospheres SiCxOy where x is greater than zero and up to about 2.0 and y is greater than zero and up to about 2.2 is produced from a cyclosiloxane polymer precursor by pyrolysis in the presence of oxygen by heating at a rate exceeding about 5° C/min.... | 11/30/1993 |
| 5264197 | Sol-gel process for providing a tailored gel microstructure An improved sol-gel process for fabricating large, crack-free gel monoliths (e.g., of silica) is described in which a specially-tailored gel microstructure is provided by adjusting the relative concentrations of an alcohol diluent (e.g., ethanol) and/or o... | 11/23/1993 |
| 5256386 | Method for preparation of silica particles Silica particles which are substantially spherical, have a particle size of 1 to 100 μm, a very narrow pore size distribution and a low alkali metal content. The particles can be prepared by sol-gel technique using emulsification technique for drop forma... | 10/26/1993 |
| 5250096 | Sol-gel method of making multicomponent glass Relatively large bodies of low-alkali silicate and other glass can be prepared conveniently by a particulate sol-gel process. The glass comprises at least 85 mole % SiO2, 1-12 mole % oxide of one or more of Li, Na, K, Rb, Cs, Ti and Zr, 0-6 mol... | 10/05/1993 |
| 5242647 | Method of casting aerogels The invention describes a method for making monolithic castings of transparent silica aerogel with densities in the range from 0.001 g/cm3 to 0.6 g/cm3. Various shapes of aerogels are cast in flexible polymer molds which facilitate r... | 09/07/1993 |
| 5234673 | Low temperature-very high structure silica and methods Precipitated silica gels having high surface areas and low oil absorption values are produced by a low temperature synthesis precipitation process. The precipitated silicas have unique flatting characteristics and are additionally useful as conditioning a... | 08/10/1993 |
| 5230953 | Silica particles and process for producing the same Silica particles having an average particle size of 5 to 100 μm, a BET specific surface area of not more than 20 m2 /g and a pore volume of not more than 0.1 ml/g, each of which has on its surface a plurality of protuberances with a smooth con... | 07/27/1993 |
