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4565727 Non-woven activated carbon fabric
Carbon Vol. 25. No. 3. PP I-II. Printed m Great Britain.
COOtl-6223187 $3.00 + .W 6 1987 Pergamon Journals Ltd.
1987
NEW PATENTS This Section contains abstracts (without graphics) of recently issued United States patents and published patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the Pergamon PATSEARCH’s online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH@ can he obtained from Pergamon InfoLine Inc., 1340 Old Chain Bridge Road, McLean, Virginia 22101 U.S.A. Copies of complete patents announced in this Section are available from Pergamon InfoLine Inc. for $8 Per copy. Payment with order is required. Orders outside North America add $2 for air postage. Order by patent number for Pergamon InfoLine oily.
4558022 REGENERATION OF CAUSTIC IMPREGNATED ACTIVATED CARBONS John J Farmerie Corporation
assigned to Calgon Carbon
An improved process for the regeneration of activated carbon impregnated with caustic is described. A three stage wash with caustic solutions of from 30 to 50 percent and from 5 to 25 percent removes both organic and sulfur contaminants. This regeneration returns the carbon essentially to its original capacity for adsorption of malodorous compounds.
4565649 GRAPHITE INTERCALATION COMPOUNDS F Lincoln Vogel assigned to Intercal Company An electrically conductive composition is disclosed which comprises a graphite intercalation compound of graphite, a Bronsted acid such as hydrogen fluoride, chloride, or bromide, nitric, nitrous, sulfuric or perchloric acid, and a metal halide selected from boron trihalide, a pentahalide of a metal from Group V of the Periodic Table, a tetrahalide of a metal from Group IV of the Periodic Table and mixtures thereof.
4565684 REGULATION OF PYROLYSIS METHANE CONCENTRATION IN THE MANUFACTURE OF GRAPHITE FIBERS Gary G Tibbetts, Michael G Devour assigned to Genera1 Motors Corporation
In a preferred embodiment, graphite fibers are grown on a suitably nucleated ceramic surface by passing a methane gas stream over the surface at an elevated temperature. Initially, the methane concentration in the gas stream is adjusted to between 5 and 15 volume percent to form microfilaments. Thereafter, the scopic carbon methane concentration is increased to above 25 volume percent to thicken the filaments into fibers.
4565727 NON-WOVEN ACTIVATED CARBON FABRIC Robert D Giglia, Edward Battistelli assigned to American Cyanamid Co An air and water vapor permeable, toxic vapor absorptive non-woven fabric material comprising a web-laid sheet containing fibrillated acrylic fiber, and an activated carbon constituent selected from the group consisting of activated carbon fiber, activated carbon particles, and mixtures of activated carbon fiber and activated carbon particles.
4567094 HIGH CONDUCTIVITY GRAPHITE MATERIAL AND METHOD OF WEAVING Jordan Levin assigned to Fiberite Corporation A method of forming an electrically conductive weavable multifilament graphite element which comprises wrapping around a multifilament graphite element at least one electrically conductive filament.
COOtl-6223187 $3.00 + .W 6 1987 Pergamon Journals Ltd.
1987
NEW PATENTS This Section contains abstracts (without graphics) of recently issued United States patents and published patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the Pergamon PATSEARCH’s online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH@ can he obtained from Pergamon InfoLine Inc., 1340 Old Chain Bridge Road, McLean, Virginia 22101 U.S.A. Copies of complete patents announced in this Section are available from Pergamon InfoLine Inc. for $8 Per copy. Payment with order is required. Orders outside North America add $2 for air postage. Order by patent number for Pergamon InfoLine oily.
4558022 REGENERATION OF CAUSTIC IMPREGNATED ACTIVATED CARBONS John J Farmerie Corporation
assigned to Calgon Carbon
An improved process for the regeneration of activated carbon impregnated with caustic is described. A three stage wash with caustic solutions of from 30 to 50 percent and from 5 to 25 percent removes both organic and sulfur contaminants. This regeneration returns the carbon essentially to its original capacity for adsorption of malodorous compounds.
4565649 GRAPHITE INTERCALATION COMPOUNDS F Lincoln Vogel assigned to Intercal Company An electrically conductive composition is disclosed which comprises a graphite intercalation compound of graphite, a Bronsted acid such as hydrogen fluoride, chloride, or bromide, nitric, nitrous, sulfuric or perchloric acid, and a metal halide selected from boron trihalide, a pentahalide of a metal from Group V of the Periodic Table, a tetrahalide of a metal from Group IV of the Periodic Table and mixtures thereof.
4565684 REGULATION OF PYROLYSIS METHANE CONCENTRATION IN THE MANUFACTURE OF GRAPHITE FIBERS Gary G Tibbetts, Michael G Devour assigned to Genera1 Motors Corporation
In a preferred embodiment, graphite fibers are grown on a suitably nucleated ceramic surface by passing a methane gas stream over the surface at an elevated temperature. Initially, the methane concentration in the gas stream is adjusted to between 5 and 15 volume percent to form microfilaments. Thereafter, the scopic carbon methane concentration is increased to above 25 volume percent to thicken the filaments into fibers.
4565727 NON-WOVEN ACTIVATED CARBON FABRIC Robert D Giglia, Edward Battistelli assigned to American Cyanamid Co An air and water vapor permeable, toxic vapor absorptive non-woven fabric material comprising a web-laid sheet containing fibrillated acrylic fiber, and an activated carbon constituent selected from the group consisting of activated carbon fiber, activated carbon particles, and mixtures of activated carbon fiber and activated carbon particles.
4567094 HIGH CONDUCTIVITY GRAPHITE MATERIAL AND METHOD OF WEAVING Jordan Levin assigned to Fiberite Corporation A method of forming an electrically conductive weavable multifilament graphite element which comprises wrapping around a multifilament graphite element at least one electrically conductive filament.