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5492721 Method for producing enamelled wires using fusible resins
PatentsALERT
An exhaust system for an internal combustion engine having a primary catalytic converter located downstream of the engine and a hydrocarbon adsorber located downstream of the primary converter. The adsorber comprises a ceramic wall-flow substrate having a zeolite coating, having the ability to selectively adsorb hydrocarbon molecules from exhaust gas,applied to the interior surfaces of the inlet passages of the substrate and a catalytic coating applied to the adjacent surfaces of the walls of the outlet passages of the substrate. The catalyst preferably has a light-off temperature below the desorption temperature of the zeolite. In operation, hydrocarbon is adsorbed by the zeolite following a cold engine start and is held until the zeolite reaches its desorption temperature at which time the hydrocarbon is released and passes through the porous walled substrate for conversion by the catalyst.
5492682 HYDROGEN PURIFICATION Succi Marco; Solcia Carolin; Lorimer D’Arcy ITALY assigned to SAES Getters SpA
Milan,
An improved apparatus and process for the removal of gaseous impurities from an impure gas stream of hydrogen contaminated with carbon monoxide, and with one or more additional impurities such as carbon dioxide, oxygen, nitrogen, water, methane. The impure gas stream is first contacted with elemental nickel in a first reaction zone under nickel-carbonyl forming conditions thereby converting substantially all the carbon monoxide to nickel carbonyl, thereby producing a partially purified gas stream. The partially purified gas stream is then contacted with Ti2Ni or certain manganese-containing alloys in a second reaction zone to produce a fully purified gas stream.
5492683 REGENERABLE SUPPORTED AMINE-POLYOL SORBENT Birbara Philip J; Nalette Timothy A Windsor Locks, CT, UNITED STATES assigned to United Technologies Corporation The supported amine-polyol sorbent of the present invention comprises about 1 wt. % to about 25 wt. % amine, about 1 wt. % to about 25 wt. % polyol, with the balance being support. This sorbent is capable of absorbing and desorbing carbon dioxide at relatively high rates at ambient temperatures, thereby improving carbon dioxide sorption capacity.
80
J. Cleaner
Prod. Volume
4, Number
1
5492721 METHOD FOR PRODUCING ENAMELLED WIRES USING FUSIBLE RESINS Berthold Herbert; Pichler Hans-Peter Deutschlandsberg, AUSTRIA assigned to MAG Maschinen und Apparatebau Gesellschaft mbH Enamelled wire is produced using almost solvent-free fusible resins. Molten resin is pumped from a supply reservoir against the direction of movement of the wire with part of the resin coating the wire. The raw wire is preheated to a temperature near the melting temperature of the molten resin. Excess resin is returned to the supply reservoir after the resin coating the wire has been calibrated to a predetermined circumferential dimension. The resin coating the wire is then hardened. The coating apparatus includes a raw wire guide, a demineralized water bath, an annealing furnace having a protective steam atmostphere, a cooling water bath, a wire preheater, an enameling stove, a heated resin reservoir, a resin applicator and a winding-on machine. The resin coating is applied under closed system conditions, thereby substantially reducing emissions.
5493047 METHOD OF PREPARING OPTICALLY ACTIVE CYANOHYDRIN DERIVATIVES Brussee Johannes; Van Der Gen Ame; Warmerdam Erwin G J C; Kruse Chris Weesp, NETHERLANDS assigned to Duphar International Research B V The invention relates to a method of preparing an optically active cyanohydrin carboxylic acid ester from an optically active cyanohydrin of opposite configuration, wherein said starting cyanohydrin is converted with a carboxylic acid in the presence of a dialkyl azodicarboxylate and a triarylphosphine. The invention also relates to a method of preparing an optically active cyanohydrin of opposite configuration by a subsequent solvolysis of the ester obtained under conservation of the configuration.
5493055 PROCESSFOR THE MANUFACTURE OF P-PHENETIDINE Kalo Jacob Akko, ISRAEL assigned to Tambour Ltd A process for the manufacture of para-phenetidine is described. The process comprises the following steps: (a)
An exhaust system for an internal combustion engine having a primary catalytic converter located downstream of the engine and a hydrocarbon adsorber located downstream of the primary converter. The adsorber comprises a ceramic wall-flow substrate having a zeolite coating, having the ability to selectively adsorb hydrocarbon molecules from exhaust gas,applied to the interior surfaces of the inlet passages of the substrate and a catalytic coating applied to the adjacent surfaces of the walls of the outlet passages of the substrate. The catalyst preferably has a light-off temperature below the desorption temperature of the zeolite. In operation, hydrocarbon is adsorbed by the zeolite following a cold engine start and is held until the zeolite reaches its desorption temperature at which time the hydrocarbon is released and passes through the porous walled substrate for conversion by the catalyst.
5492682 HYDROGEN PURIFICATION Succi Marco; Solcia Carolin; Lorimer D’Arcy ITALY assigned to SAES Getters SpA
Milan,
An improved apparatus and process for the removal of gaseous impurities from an impure gas stream of hydrogen contaminated with carbon monoxide, and with one or more additional impurities such as carbon dioxide, oxygen, nitrogen, water, methane. The impure gas stream is first contacted with elemental nickel in a first reaction zone under nickel-carbonyl forming conditions thereby converting substantially all the carbon monoxide to nickel carbonyl, thereby producing a partially purified gas stream. The partially purified gas stream is then contacted with Ti2Ni or certain manganese-containing alloys in a second reaction zone to produce a fully purified gas stream.
5492683 REGENERABLE SUPPORTED AMINE-POLYOL SORBENT Birbara Philip J; Nalette Timothy A Windsor Locks, CT, UNITED STATES assigned to United Technologies Corporation The supported amine-polyol sorbent of the present invention comprises about 1 wt. % to about 25 wt. % amine, about 1 wt. % to about 25 wt. % polyol, with the balance being support. This sorbent is capable of absorbing and desorbing carbon dioxide at relatively high rates at ambient temperatures, thereby improving carbon dioxide sorption capacity.
80
J. Cleaner
Prod. Volume
4, Number
1
5492721 METHOD FOR PRODUCING ENAMELLED WIRES USING FUSIBLE RESINS Berthold Herbert; Pichler Hans-Peter Deutschlandsberg, AUSTRIA assigned to MAG Maschinen und Apparatebau Gesellschaft mbH Enamelled wire is produced using almost solvent-free fusible resins. Molten resin is pumped from a supply reservoir against the direction of movement of the wire with part of the resin coating the wire. The raw wire is preheated to a temperature near the melting temperature of the molten resin. Excess resin is returned to the supply reservoir after the resin coating the wire has been calibrated to a predetermined circumferential dimension. The resin coating the wire is then hardened. The coating apparatus includes a raw wire guide, a demineralized water bath, an annealing furnace having a protective steam atmostphere, a cooling water bath, a wire preheater, an enameling stove, a heated resin reservoir, a resin applicator and a winding-on machine. The resin coating is applied under closed system conditions, thereby substantially reducing emissions.
5493047 METHOD OF PREPARING OPTICALLY ACTIVE CYANOHYDRIN DERIVATIVES Brussee Johannes; Van Der Gen Ame; Warmerdam Erwin G J C; Kruse Chris Weesp, NETHERLANDS assigned to Duphar International Research B V The invention relates to a method of preparing an optically active cyanohydrin carboxylic acid ester from an optically active cyanohydrin of opposite configuration, wherein said starting cyanohydrin is converted with a carboxylic acid in the presence of a dialkyl azodicarboxylate and a triarylphosphine. The invention also relates to a method of preparing an optically active cyanohydrin of opposite configuration by a subsequent solvolysis of the ester obtained under conservation of the configuration.
5493055 PROCESSFOR THE MANUFACTURE OF P-PHENETIDINE Kalo Jacob Akko, ISRAEL assigned to Tambour Ltd A process for the manufacture of para-phenetidine is described. The process comprises the following steps: (a)