Abstract: The present invention is directed to a method for forming glass articles containing enclosed channels. The method comprises the following steps: a) delivering and depositing a first length of a molten glass ribbon (18) to a surface of a mold (20) having a mold cavity (22) possessing at least one channel-forming groove (22) and a peripheral surface, wherein the first length (18) overlies the mold cavity (22) and the peripheral surface; b) allowing the first length of the molten glass ribbon (18) to substantially conform to the contour of the mold cavity (22) resulting in the formation of at least one channel in the first length of the molten glass ribbon (18); c) delivering and depositing a second length of the molten glass ribbon (26) to the exposed surface of the first length of the molten glass ribbon (18).

Abstract: A plasticizable raw material mixture for use in preparing a substrate having cordierite as its primary phase with the mixture comprised of a chemical composition, percent by weight, of 11 to 17% MgO, 33 to 41% Al2O3 and, 46 to 53% SiO2. The raw material mixture specifically comprises the following: (1) one source of Al2O3 and SiO2 comprising a clay mixture having less than about 22%, by weight based on the total raw materials in the plasticizable mixture, of calcined clay; (2) an alumina yielding precursor comprising alumina having an average particle diameter of about 1 &mgr;m or less; and, (3) at least one source of magnesia having an average particle diameter of between about 3 to 15 microns.

Abstract: A method of firing a green cordierite-ceramic honeycomb structural body containing a carbonaceous material, for example, an organic binder, including a two phase process. The first phase includes firing the green honeycomb structural body to a temperature and for a time sufficient to initiate and sufficiently achieve release of the carbonaceous material while introducing into the furnace a CO2-enriched atmosphere. Once the carbonaceous material is sufficiently removed, the second phase involves further conventionally firing for a time and a temperature sufficient to initiate and sufficiently achieve the conversion of the green ceramic honeycomb structural body into a fired honeycomb body.

Abstract: Disclosed is sintered ceramic article that exhibits a primary crystalline phase of cordierite and analytical oxide composition, in weight percent, of 49-53% SiO2, 33-38% Al2O3, 12-16% MgO and exhibits a coefficient of thermal expansion no greater than about 4.0×10−7/° C. over the temperature range of about 25° C. to about 800° C. and a transverse-I ratio of not less than about 0.92. Also disclosed is a method for producing a sintered cordierite ceramic article involving preparing a plasticizable raw material, comprising a magnesium source, a SiO2-forming source and an additional component of either: (a) a clay-free, Al2O3-forming source having a surface area of greater than about 5 m2/g; or, (b) a clay and Al2O3-forming source combination wherein the clay comprises no greater than about 30%, by weight, of the total inorganic mixture, and the Al2O3-forming source exhibits a surface area of greater than about 40 m2/g.

Abstract: An activated carbon catalyst having sulfur dispersed homogeneously thereon, the sulfur being chemically bonded to the activated carbon. A method of making the catalyst involves forming an intimate mixture of a synthetic carbon precursor and a sulfur-containing material, curing the carbon precursor, carbonizing the carbon precursor, activating the carbonized carbon precursor to produce an activated carbon catalyst having sulfur chemically bonded to said activated carbon and uniformly dispersed thereon.

Abstract: A method of making activated carbon of various pore size distributions involves an providing oxidized pitch, carbonizing the pitch when the softening point of the pitch is less than about 250° C., and activating the pitch to produce activated carbon. A catalyst metal can be included with the pitch to produce mesoporosity in the activated carbon.

Abstract: Mesoporous carbon and method of making involves forming a mixture of a high carbon-yielding carbon precursor that when carbonized yields greater than about 40% carbon on a cured basis, and an additive that can be catalyst metal and/or low carbon-yielding carbon precursor that when carbonized yields no greater than about 40% by weight carbon on a cured basis. When a catalyst metal is used, the amount of catalyst metal after the subsequent carbonization step is no greater than about 1 wt. % based on the carbon. The mixture is cured, and the carbon precursors are carbonized and activated to produce mesoporous activated carbon.

Abstract: A fired body and method for producing the body that involves compounding the components of powder materials, binder, aqueous solvent for the binder, and non-solvent with respect to at least the solvent, binder, and powder materials. The non-solvent is made up of a high molecular weight organic portion having a molecular weight of greater than 200, and a low molecular weight organic portion having a molecular weight of up to 200. The components are mixed and plasticized to form a plasticized mixture which is then shaped to form a green body. The green body is then dried and fired.

Abstract: A small pore hydrophilic molecular sieve body and method of making same involves forming a plasticized mixture of hydrophilic molecular sieve powder having a pore size of no greater than about 5.0 angstroms, temporary binder, silicone resin binder emulsion, and polar vehicle, shaping the mixture into a green monolithic body, and drying and heat-treating the green monolithic body to impart strength to the green body and form the product molecular sieve monolith. The body is made up of about 80% to 95% by weight molecular sieve with the balance being silica binder.

Abstract: An electrode for deionization of water is made of a continuous activated carbon structure. The activated carbon is derived from a synthetic carbon precursor. The structure has openings, inlet and outlet ends such that water entering the inlet end passes through the openings and exits through the outlet end, a conductive coating on at least part of the outer surface of the structure, and a metal wire in contact with the structure. A deionization system is made up of the electrodes in series so that the outlet end of one electrode is next to the inlet end of the nearest downstream electrode. The metal wire of each electrode is connected to a power source to deliver the opposite charge as the charge delivered to its neighboring electrodes. Each of the electrodes is fixedly attached to and sealed within a housing with an air and moisture-tight seal. Openings in the housing between the electrodes, allow air to be removed before use.

Abstract: A cordierite body is produced by providing cordierite-forming raw materials. The raw materials are intimately blended with effective amount of vehicle and forming aids to impart plastic formability and green strength to the raw materials and form a plastic mixture. A green body is formed which is dried and heated from room temperature up to a maximum temperature of about 1360° C. to 1435° C. at an average heating rate of at least about 315° C. per hour and held at maximum temperature for about 0.05 to 4.4 hours. The total heating time from room temperature to the end of the hold at the maximum temperature is less than about 4.5 hours. The resulting body is predominately cordierite, having a mean coefficient of thermal expansion from about 25° C. to 800° C. of less than about 15×10−7° C.−1 in at least one direction.

Abstract: A fired body and method of making involves compounding powder, binder, aqueous solvent for the binder, surfactant, and non-solvent with respect to at least the binder, the solvent, and the powder, with the addition of an organosilicon compound. The non-solvent is lower in viscosity than the binder combined with the solvent, and the amount of solvent is less than the amount that would be used absent the non-solvent. The components are mixed and plasticized and then shaped into a green body, which is then fired to produce the product body. The organosilicon compound enhances the stiffness in the green body afforded by other non-solvents, and results in increased strength and reduced cracking in the fired body, among other advantages.

Abstract: A monolithic structure having active material that includes at least inorganic ion exchange material, for purifying a liquid stream of contaminants such as heavy metals, chlorine, volatile organics, pesticides, herbicides, and/or parasites, etc. The structure has an inlet end and an outlet end and a multiplicity of cells extending from inlet to outlet end. The cells are separated from one another by porous walls that are alternatively plugged at each end such that a liquid stream that enters the structure, enters through the unplugged cells at the inlet end and passes through porous walls to be purified by the active material, and thereafter passes out of the structure through unplugged cells at the outlet end. One method of making the structure involves applying active material as a coating on an alternately plugged substrate. The average particle size of the active material after calcination is greater than the average cell wall pore size of the substrate.

Abstract: A method for forming an article involves forming a mixture of components of powder materials, organic binder, solvent for the binder, non-solvent with respect to at least the binder, the solvent, and the powder materials, wherein the non-solvent is lower in viscosity than the binder combined with the solvent, and an agent for retarding the oxidation of the organic components. The components are mixed and plasticized, and shaped into a green structure which is then fired to impart strength and form the product article. The product article has fewer cracks than it would have absent the oxidation-retarding agent.

Abstract: An activated carbon body and method of making the body which involves providing an inorganic substrate, thermosetting resin, and an adsorption enhancing additive which can be sulfur and/or oil which is non-miscible with and non-reactive with the carbon precursor, contacting the inorganic substrate with the carbon precursor and the adsorption enhancing additive to coat the substrate therewith, curing and carbonizing the carbon precursor, and activating the carbon to produce a coating of activated carbon on the substrate and form the activated carbon body. Another method involves forming a mixture of thermosetting resin, adsorption enhancing additive, which can be sulfur, phosphoric acid, and/or the oil, temporary organic binder, optional forming aid, and fillers, shaping the mixture into a body, followed by curing, carbonizing, and activating to produce a shaped body of activated carbon. When sulfur is utilized, a sulfur-carbon bond forms that is characterized by a peak at 165.

Abstract: A method of producing a continuous carbon structure involves providing an inorganic support and a synthetic carbon precursor, contacting the inorganic support with the carbon precursor, curing and carbonizing the carbon precursor. Prior to the carbonizing step, a potassium compound is introduced into the carbon precursor. The potassium compound is greater than about 3% by weight of the total weight of the carbon precursor and potassium compound.The potassium compound is then removed from the carbonized carbon structure. A carbon structure is produced having a surface area of at least about 100 m.sup.2 /g.

Abstract: The present invention is directed at a glass-ceramic having high strength and toughness and containing miserite as a predominant crystal phase. The glass-ceramic has a composition calculated in terms of a weight percent on the oxide basis comprising 40-68% SiO.sub.2, 12-35% CaO, 8-20% CaF.sub.2, 4-10.5% K.sub.2 O, 0-5% Al.sub.2 O.sub.3, 0-5% B.sub.2 O.sub.3, 0-15% P.sub.2 O.sub.5, 0-4% R.sub.2 O.sub.3, wherein R represents Y.sup.3+ and rare earth metals in the lanthanide series, and 0-5% of optional constituents selected from the group consisting of MgO, SrO, BaO, Na.sub.2 O, Nb.sub.2 O.sub.5, ZrO.sub.2, and ZnO, and 0-10% of optional constituents selected from the group consisting of Nb.sub.2 O.sub.5 and TiO.sub.2 and 0-2% Li.sub.2 O as an optional constituent. The glass-ceramic may contain secondary phases of cristobalite (SiO.sub.2), fluorite (CaF.sub.2), xonotlite (Ca.sub.6 Si.sub.6 O.sub.17 F.sub.2), and fluorapatite (Ca.sub.5 (PO.sub.4).sub.

Abstract: An activated carbon-crystalline titanium and/or tin silicate composite for purifying waste streams and method of making. The method involves providing a combination of a synthetic carbon precursor, and titanium and/or tin silicate, followed by curing, carbonizing, and activating the carbon precursor. The composite is used to purify fluid streams such as water, of pollutants such as VOC's, heavy metals such as lead, and chlorine.

Abstract: The present invention is directed to an apparatus and method for forming glass article from sheet glass. More specifically the apparatus comprises a mold, a plunger being cooperative alignment with the mold, wherein the mold and the plunger form a cavity exhibiting the shaped of the glass article, an outer trimmer for separating the glass article from the surrounding excess sheet glass, and an inner trimmer for forming the aperture in the glass article, and the method involves forming the aperture during the hot-forming process, therefore eliminating a post-formation step.

Abstract: Method of making polarizing glass having integral polarizing and non-polarizing regions disclosed. The method involves applying a protective glass/frit material capable of blocking reducing gas to the surface of the glass to form a desired pattern, exposing the glass to a reducing gas atmosphere to render unprotected glass polarizing, and removing the protective glass/frit material to reveal underlying non-polarizing regions.