In Coating Or Impregnation Patents (Class 428/368)
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Patent number: 6398039Abstract: An unique filtration device (10) which removes acidic contaminants such as H2S and SO2 from a fluid stream through the use of partially hollow wicking fibers (20) impregnated with an effective amount of alkaline-generating chemical compounds, preferably also containing an effective amount of a compound with elements from Group II and Group 6-12 in +2 oxidation state, and most preferably also containing an effective amount of solid fine particles (18). A nonwoven filter mat (12) is formed from a plurality of the elongated fibers (20) each having at least one internal channel (22) connected to the fiber outer surface via an elongated opening (24). The fluid stream containing the acidic gas phase contaminants is directed over the nonwoven filter mat (12) whereby said plurality of small solid particles (18) and reservoir of active chemical reagents disposed in the open channels (22) communicate through the elongated opening (24) with the fluid flow path and absorbs the acidic gas phase contaminants.Type: GrantFiled: October 24, 1997Date of Patent: June 4, 2002Assignee: AlliedSignal Inc.Inventors: Lixin Xue, Ronald Rohrbach, Daniel Bause, Peter Unger, Russell Dondero, Gordon Jones
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Patent number: 6361860Abstract: Composites of high melting point thermoplastics such as polyphenylene sulfide or polyimide and high modulus fibers such as carbon, graphite, or boron can be bonded to rubber using a primer such as a metal primer. The composite desirably has a modulus of elasticity of at least 750,000 psi and can be used as a belt in a no-flat tire.Type: GrantFiled: November 4, 1999Date of Patent: March 26, 2002Assignee: Bridgestone CorporationInventor: Russell W. Koch
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Patent number: 6350115Abstract: A pressure transmitter for use in the curing of composite components may take the form of a caul plate, pressure intensifier or vacuum bag and is formed from a curable elastomeric material which is partially cured, normally when supported on a mold, at a temperature not exceeding 100° C. It is subsequently further cured at, for example 175° C., while unsupported. It may incorporate a reinforcing layer formed from a curable resin pre-impregnated fibrous material.Type: GrantFiled: December 23, 1998Date of Patent: February 26, 2002Assignee: Advanced Composites Group Ltd.Inventor: Roger Mark Sloman
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Patent number: 6344270Abstract: Metal matrix composite wires that include at least one tow comprising a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The fibers are selected from the group of ceramic fibers carbon fibers, and mixtures thereof. The wires have certain specified characteristics such as roundness values, roundness uniformity values, and/or diameter uniformity values.Type: GrantFiled: July 14, 2000Date of Patent: February 5, 2002Assignee: 3M Innovative Properties CompanyInventors: Colin McCullough, David C. Lueneburg, Paul S. Werner, Herve E. Deve, Michael W. Carpenter, Kenneth L. Yarina
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Patent number: 6331362Abstract: The present invention provides: refractory composite materials protected against oxidation at high temperature; said materials are of the type made by a solid process and include, in characteristic manner, over their entire outside surface, a complex layer containing at least one silicate corresponding to a densification additive used to make them, silica, and a vitreous boron-containing silicate phase; precursors or intermediates for preparing said materials; said precursors including, in characteristic manner, over their entire outside surface, at least one layer of a precursor for borosilicate glass or a layer of borosilicate glass; and a method of preparing said materials (by preparing said precursors) and a method of preparing said precursors.Type: GrantFiled: April 21, 1999Date of Patent: December 18, 2001Assignee: European Atomic Energy Community (EUROTOM)Inventors: Pascal Dupel, Jean-Bernard Veyret
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Patent number: 6329056Abstract: Metal matrix composite wires that include a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The wire exhibits zero breaks over a length of at least 300 meters when tested according to a specified test.Type: GrantFiled: July 14, 2000Date of Patent: December 11, 2001Assignee: 3M Innovative Properties CompanyInventors: Herve E. Deve, Michael W. Carpenter, Colin McCullough, Paul S. Werner
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Patent number: 6326067Abstract: A vacuum insulating glass (IG) unit is provided with an array of pillars or supports between opposing glass sheets. At least some of the pillars are coated on at least one surface thereof with a dry lubricant material such as diamond like carbon (DLC). This coating permits the glass sheet(s) to move relative to one another during thermal expansion while minimizing the degree to which the pillars scratch or crack the glass during such relative movement. The provision of such coating(s) minimizes pillar scratching of the glass and/or pillars inducing indentations in the glass substrate(s).Type: GrantFiled: May 3, 1999Date of Patent: December 4, 2001Assignee: Guardian Industries CorporationInventor: Vijayen S. Veerasamy
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Patent number: 6312810Abstract: The invention relates to a halogen-free flameproof mesh sheet for use outdoors. The flameproof sheet contains a flame retardant which does not have an increase in viscosity during storage, has excellent gloss and flexibility, and does not generate harmful halogen gas at the time of combustion. A mesh sheet woven out of a coated yarn, typically a multifilament fiber, is impregnated with the flame retardant and heat treated. The fabric is impregnated with the flame retardant such that 60-350 parts by weight of the flame retardant is contained with respect to 100 parts by weight of the mesh sheet fabric. The flameproof mesh sheet are suitable for use in building construction and is suitable for outside exposure for extended lengths of time.Type: GrantFiled: December 4, 1998Date of Patent: November 6, 2001Assignees: Saiji Nozaki, Kyowa Kabushiki KaishaInventors: Saiji Nozaki, Kuniaki Kamiya
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Publication number: 20010024722Abstract: Disclosed are carbon fibers consisting of a plurality of single filaments, wherein the carbon fibers as a resin impregnated strand are characterized by satisfying the following relations: &sgr;≧11.1−0.75 d where a is the tensile strength of said carbon fibers as a resin impregnated strand in GPa, and d is the average diameter of said single filaments in &mgr;m, and RD≦0.05 where RD is the difference in crystallinity between the inner and outer layers of each of the single filaments evaluated with RAMAN, and an acrylic fibers for producing the carbon fibers and a process for producing the acrylic fibers.Type: ApplicationFiled: January 17, 2001Publication date: September 27, 2001Applicant: Toray Industries, Inc.Inventors: Yoji Matsuhisa, Makoto Kibayashi, Katsumi Yamasaki, Akira Okuda
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Patent number: 6248443Abstract: A process for the preparation of a carbon yarn product includes the steps of pyrolizing raw carbonaceous yarn comprising a plurality of carbon fibers, at a temperature above about 650° F.; flexing the pyrolized yarn to substantially break fiber-to-fiber bonding between the fibers; and, exposing the yarn to a temperature sufficient to carbonize the pre-carbonized yarn to a final and higher carbon assay. A flexible yarn element (10) includes a plurality of carbon filaments (11) wherein each filament (11) is in contact with at least one other filament 11. A sizing material at least partially coats the plurality of filaments (11), wherein the sizing material of each filament (11) is substantially separated from the sizing material of the at least one other filament (11) in contact therewith.Type: GrantFiled: March 28, 1994Date of Patent: June 19, 2001Assignee: Hitco Carbon Composites, Inc.Inventors: Ramon B. Fernandez, Kenneth A. DeVane
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Patent number: 6245694Abstract: Automotive bedliners (e.g., for pickup trucks) are formed from a sheet of thermoplastic material having electrically conductive fibers embedded in a surface thereof in an amount sufficient to render said sheet electrically conductive. The bedliners are most preferably formed of a thermoplastic material (e.g., a polyolefin, such a polyethylene and/or polypropylene) having a matrix of electrically conductive fibers physically embedded in at least one side thereof. By physically embedding the conductive fibers in a surface of the bedliner, the fibers are capable of establishing electrical continuity between the bedliner and the pickup truck bed thereby effectively dissipating static electrical charges.Type: GrantFiled: October 1, 1997Date of Patent: June 12, 2001Assignee: Shakespeare Conductive Fibers, LLCInventors: Grover L. Davenport, Wayne S. Stanko, Allen Ray, Everett C. Cox, Michael A. Davis, Gary M. Carnes
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Patent number: 6245424Abstract: This invention relates to a process comprising the steps of: a) providing a fiber preform comprising a non-oxide ceramic fiber with at least one coating, the coating comprising a coating element selected from the group consisting of carbon, nitrogen, aluminum and titanium, and the fiber having a degradation temperature of between 1400° C. and 1450° C., b) impregnating the preform with a slurry comprising silicon carbide particles and between 0.1 wt % and 3 wt % added carbon c) providing a cover mix comprising: i) an alloy comprising a metallic infiltrant and the coating element, and ii) a resin, d) placing the cover mix on at least a portion of the surface of the porous silicon carbide body, e) heating the cover mix to a temperature between 1410° C. and 1450° C. to melt the alloy, and f) infiltrating the fiber preform with the melted alloy for a time period of between 15 minutes and 240 minutes, to produce a ceramic fiber reinforced ceramic composite.Type: GrantFiled: July 10, 1998Date of Patent: June 12, 2001Assignee: Saint-Gobain Industrial Ceramics, Inc.Inventors: Sai-Kwing Lau, Salvatore J. Calandra, Roger W. Ohnsorg
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Patent number: 6235675Abstract: In one aspect, the invention includes a method of forming a material containing carbon and boron, comprising: a) providing a substrate within a chemical vapor deposition chamber; b) flowing a carbon and boron precursor into the chamber, the precursor being a compound that comprises both carbon and boron; and c) utilizing the precursor to chemical vapor deposit a material onto the substrate, the material comprising carbon and boron. In another aspect, the invention includes a method of forming a catalyst, comprising: a) providing a substrate within a chemical vapor deposition chamber; b) flowing a carbon and boron precursor into the chamber, the precursor being a compound that comprises both carbon and boron; c) utilizing the precursor to chemical vapor deposit a first material onto the substrate, the first material comprising carbon and boron; and d) coating the first material with a catalytic material.Type: GrantFiled: September 21, 1999Date of Patent: May 22, 2001Assignee: Idaho Research Foundation, Inc.Inventor: David N. McIlroy
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Patent number: 6235379Abstract: The ceramic matrix composite is constructed by a ceramic matrix containing SiC formed by a reaction sintering as a main phase and ceramic fibers comprising SiC compounded in this matrix. A coat layer that has been previously coated on the fibers is disposed between the fiber and the matrix. The layer is provided with a BN layer with a preset thickness covering on the surface of the fiber, a C layer with a preset thickness covering the BN layer, and a SiC layer with a preset thickness covering the C layer.Type: GrantFiled: August 19, 1997Date of Patent: May 22, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Tsuneji Kameda, Yoshinori Hayakawa
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Patent number: 6225248Abstract: High-temperature, lightweight, ceramic carbon insulation is prepared by coating or impregnating a porous carbon substrate with a siloxane gel derived from the reaction of an organodialkoxy silane and an organotrialkoxy silane in an acid or base medium in the presence of the carbon substrate. The siloxane gel is subsequently dried on the carbon substrate to form a ceramic carbon precursor. The carbon precursor is pyrolyzed, in an inert atmosphere, to form the ceramic insulation containing carbon, silicon, and oxygen. The carbon insulation is characterized as a porous, fibrous, carbon ceramic tile which is particularly useful as lightweight tiles for spacecraft.Type: GrantFiled: November 2, 1998Date of Patent: May 1, 2001Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Daniel B. Leiser, Ming-ta S. Hsu, Timothy S. Chen
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Patent number: 6203904Abstract: A process for forming a uniform, boron nitride coating on a boron-doped, refractory carbide body, and in particular on a sintered, boron-doped, silicon carbide fiber, where the body is exposed to a nitrogen-containing atmosphere at a temperature equal to or greater than the densification or sintering temperature. The coated fibers exhibit no loss in strength properties and show improved creep resistance.Type: GrantFiled: November 23, 1999Date of Patent: March 20, 2001Inventor: Michael D. Sacks
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Patent number: 6194068Abstract: A wire for a wire saw apparatus for slicing a material includes an element wire, a binder coated on an outside circumferential surface of the element wire, and abrasive grains dispersed in the binder. The element wire is a high tensile strength metal wire, the binder is a material such as an organic or inorganic material other than a metal, and the abrasive grains are held on a surface of the element wire by the binder. The element wire is also made by either a natural quartz glass or a high purity synthesis quartz glass.Type: GrantFiled: November 7, 1997Date of Patent: February 27, 2001Assignee: Hitachi Cable Ltd.Inventors: Seishiro Ohashi, Shinichi Okada, Kenji Asano, Kazunori Suzuki, Masahiro Sakamoto
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Patent number: 6176973Abstract: An absorbent cellulose product includes cellulose fibers which are cross-linked by reaction with an effective quantity of one or more water-soluble polymers which are produced in advance, which have an average molecular weight of between 350 and 70,000 g/mol, and which possess free acid or aldehyde groups. When the product is being prepared, the cellulose fibers are impregnated with the polymers in aqueous solution. The impregnated substance is dried and defibered at the latest after drying, after which the defibered cellulose fibers are cross-linked in the dry state by means of heating the impregnated, dried and defibered cellulose product.Type: GrantFiled: January 5, 1998Date of Patent: January 23, 2001Assignee: Stora Kopparbergs Bergslags Aktiebolag (PUBL)Inventor: Leif Norlander
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Patent number: 6166143Abstract: A thermoplastic elastomer composition containing a component (A) (thermoplastic polyolefin resin), component (B) (epoxy-group-containing ethylene acrylic ester copolymer rubber), and component (C) (acid-modified polyolefin resin) comprising a continuous phase of the component (A) in which the component (B) is dispersed as a dispersed phase and is cross-linked by a peroxide; a thermoplastic elastomer composition comprising a continuous phase of a thermoplastic polyolefin resin (A) and a dispersed phase of an epoxy-group-containing ethylene-acrylic ester copolymer rubber component (B) and acrylonitrile butadiene rubber component (C), which is dynamically cross-linked; and a hose having an inner tube, at least one reinforcing layer, and an outer cover, wherein the inner tube and the outer cover contain a thermoplastic elastomer composition comprised of a thermoplastic resin in which is blended an at least partially cross-linked elastomer component, the reinforcing layer is a brass-plated wire, and the reinforcinType: GrantFiled: July 2, 1998Date of Patent: December 26, 2000Assignee: The Yokohama Rubber Co., Ltd.Inventors: Jiro Watanabe, Yuichi Hara, Daisuke Irii, Takashi Satoh, Gou Kawaguchi, Shigeru Yamauchi, Susumu Hatanaka, Noriaki Kuroda
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Patent number: 6136814Abstract: The present invention provides a pharmaceutical product comprising an aqueous solution of acyclovir sodium contained within a sealed container constructed of an alkali resistant polymer having a CO.sub.2 permeation constant of not more than about 1.times.10.sup.-8 cc/cm.sup.2 /mm/sec/cmHg.The present invention further provides a ready-to-use aqueous acyclovir product for parenteral administration with improved shelf life. The present invention further provides a method of storing aqueous acyclovir sodium, a method of maintaining the pH of aqueous acyclovir sodium, a method of preventing the precipitation of acyclovir from aqueous acyclovir sodium, and a method of preventing the influx of CO.sub.2 in an aqueous acyclovir solution, which methods comprise storing aqueous acyclovir sodium according to the present invention.Type: GrantFiled: December 8, 1997Date of Patent: October 24, 2000Assignee: Fujisawa USA, Inc.Inventors: Jane Huey-Jiuan Li, Jouhn-Wern Jang
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Resin for an oriented-reinforcement prepreg that can be shaped and molded products that are obtained
Patent number: 6136883Abstract: A modified polyester-polyurethane resin is formed by reacting at least one polyisocyanate at least one polyol polyester that is prepared from at least one diacid or ethylenically unsaturated anhydride and at least one polyhydric alcohol, at least one ethylenically unsaturated monomer, at least one promoter of the decomposition of the catalyst peroxide, at least one catalyst of the isocyanate-alcohol reaction, and at least one hydroxylated (alk)acrylate and is used for the impregnation of oriented reinforcements. The resin makes possible quick molding, at moderate temperature, of parts with high mechanical properties.Type: GrantFiled: February 7, 1996Date of Patent: October 24, 2000Assignee: Cray Valley S.A.Inventors: Yeong-Show Yang, Francette Porato, Serge Lequeux -
Patent number: 6130276Abstract: In a method of melting asphalt in a vessel, the molten asphalt normally emitting fumes, 0.2 weight percent to 6 weight percent of a polymer is added to the asphalt to reduce the visual opacity of the fumes by at least 25% over the same asphalt without the polymer. In another embodiment, the total emissions of benzene soluble suspended particulates is reduced by at least 15% over the same asphalt without the polymer. Preferably, the added polymer has a melt flow index of from 15 grams/10 minutes to 95 grams/10 minutes, and the added polymer reduces the visual opacity of the fumes by forming a skim on the upper surface of the molten asphalt.Type: GrantFiled: March 12, 1999Date of Patent: October 10, 2000Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Donn Roy Vermilion, Michael Richard Franzen, Richard T. Janicki, David Charles Trumbore, Jay W. Keating, Jorge Alberto Marzari
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Patent number: 6120894Abstract: A short carbon fiber bundling mass is disclosed, which can provide a high-modulus fiber-reinforced resin composition and comprises short carbon fibers bundled by using a sizing agent and heated to a maximum temperature ranging from 1,600.degree. C. to 3,300.degree. C. in an inert gas atmosphere so as to be graphitized.Type: GrantFiled: July 10, 1996Date of Patent: September 19, 2000Assignee: Mitsubishi Chemical CorporationInventors: Iwao Yamamoto, Akihiko Yoshiya, Tadahiro Nishimoto
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Patent number: 6112772Abstract: A system with reduced electrostatic discharge including woven fabric configured into a flexible container and having sufficient electrical resistivity to allow discharges of energy from the fabric of below about one-hundred nanocoulombs when the fabric is charged to more than about negative ten thousand volts. The flexible fabric container with a reduced potential for incendiary discharge may further include quasi-conductive fibers or a combination of quasi-conductive fibers and an antistatic coating. The quasi-conductive fibers further may be woven into the fabric. The present invention also discloses a method for reducing electrostatic discharge in ungrounded type flexible fabric container systems by providing a flexible fabric container made from woven fabric and adjusting the electric resistivity of the woven fabric to allow the flow of electricity through the fabric at a rate allowing discharges at below about one-hundred nanocoulombs when the fabric is charged at more than about negative ten kilovolts.Type: GrantFiled: October 20, 1997Date of Patent: September 5, 2000Assignee: Linq Industrial Fabrics, Inc.Inventors: Vahid Ebadat, George M. Milner, Robert J. Pappas
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Patent number: 6110591Abstract: A high temperature non-asbestos compressed sheet formed without rubber binders, additives, curatives and fillers. The yarns that comprise the invented woven compressed sheet have an elongated metallic core and a vermiculated graphite jacket substantially encapsulating the jacket. In one preferred embodiment, the core is either a metallic foil or a flattened metallic wire both having a generally rectangular cross-section. In another preferred embodiment, the core is a metallic wire shrouded by carbon fibers. The yarns also include an adhesive layer that secures the jacket to the core. Also disclosed is a method for making the invented sheet.Type: GrantFiled: April 23, 1998Date of Patent: August 29, 2000Assignee: Slade Group, LLCInventor: Robert A. Crosier
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Patent number: 6106954Abstract: A silicone rubber composition is obtained by blending (A) 100 parts by weight of an organopolysiloxane composition of the addition reaction curing type with (B) about 30-400 parts by weight of aluminum hydroxide which has been surface treated with an organosilane or organosilazane substantially free of an aliphatic unsaturated group or a partial hydrolyzate thereof so that the aluminum hydroxide has 0.01-2% by weight of carbon affixed thereto. The composition maintains silicone rubber properties even though it is loaded with large amounts of aluminum hydroxide. It cures into a silicone rubber having improved high-voltage electrical insulating properties and thus suited for use as high-voltage electrical insulators.Type: GrantFiled: December 30, 1998Date of Patent: August 22, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Noriyuki Meguriya, Syuuichi Azechi, Susumu Sekiguchi, Takeo Yoshida
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Patent number: 6103373Abstract: A carbon fiber material is substantially constituted by fiber agglomerates, having agglomerate sizes in a range of not less than 5 .mu.m and not more than 500 .mu.m, formed by vapor grown carbon fibers having a diameter of not less than 0.05 .mu.m and not more than 5 .mu.m, having a microstructure such that some fiber contact points are bonded together with substances produced by carbonizing carbonaceous matters. This carbon fiber material is used as a filler material to various matrices, and used also as an electrode material for making electrodes in batteries, especially in electric double-layer capacitors, and in secondary batteries, especially those based on lithium or lead.Type: GrantFiled: March 31, 1998Date of Patent: August 15, 2000Assignee: Showa Denko K.K.Inventors: Kunio Nishimura, Akinori Sudo, Mahito Murakami, Koro Shirane
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Patent number: 6099789Abstract: A molded article includes a hollow molded body formed of a base material and a heat insulating sheet member laminated to an outer surface of the hollow molded body. The base material is a blended material which contains about 50% by weight to about 90% by weight of a thermoplastic resin and about 10% by weight to about 50% by weight of an inorganic material, and has a flexural rigidity of at least about 1,350 MPa at 23.degree. C. and a flexural rigidity of at least about 550 MPa at 60.degree. C.Type: GrantFiled: April 22, 1999Date of Patent: August 8, 2000Assignee: Kyoraku Co., Ltd.Inventor: Takehiko Sumi
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Patent number: 6097271Abstract: This invention is directed to an apparatus for transmitting an electromagnetic wave. The apparatus includes a dielectric material with a permittivity that decreases with increasing frequency over an operating frequency bandwidth that includes the frequency of the electromagnetic wave. With this behavior, the electrical or phase length of the dielectric material remains relatively constant and independent of frequency over the operating band, a feature that is highly advantageous for many important applications including circuit boards, radomes, and antennas. In addition, the dielectric material can be engineered to exhibit this behavior at a desired frequency, including frequencies in the millimeter, microwave, VHF and UHF frequency ranges. In a preferred embodiment, the dielectric material is an artificial dielectric manufactured by mixing conductive particulate into a host dielectric material.Type: GrantFiled: April 2, 1997Date of Patent: August 1, 2000Assignee: Nextronix CorporationInventor: Dennis J Kozakoff
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Patent number: 6096395Abstract: A charging roll including a center shaft, a foam layer formed on an outer circumferential surface of the center shaft, an electrically conductive elastic layer formed on an outer surface of the foam layer, and a resistance adjusting layer and a protective layer formed by coating on an outer surface of the electrically conductive elastic layer. The foam layer is an electrically conductive foam body or a foam body a part of which is made electrically conductive. A method of producing a composite roll, such as the above charging roll, which includes a foam layer formed on a shaft, and a solid elastic layer formed on the foam layer, includes the step of forming multiple minute grooves in an outer circumferential surface of a pre-foam tube which gives the foam layer, or an inner circumferential surface of an elastic tube which gives the solid elastic layer.Type: GrantFiled: November 10, 1993Date of Patent: August 1, 2000Assignee: Tokai Rubber Industries, Ltd.Inventors: Saburo Hayashi, Sumio Oinuma, Takafumi Yamamoto, Kazutoshi Soumiya, Hiroyasu Kato
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Patent number: 6093482Abstract: A carbon--carbon composite for friction products comprises an outer friction part and a load bearing structure part supporting the friction part. The friction part contains a mixture of carbon fibers, pitch powder and graphite powder, whereas the structure part is comprised of a pack of alternating layers of the mixture and layers of one member selected from the group consisting of carbon fabrics, carbon-based prepregs and carbon-based, segmented prepregs.Type: GrantFiled: December 16, 1998Date of Patent: July 25, 2000Assignee: Daewoo Heavy Industries Ltd.Inventors: Hyun Cheol Park, Hong Bum Lee, Ik Hyun Oh, Hyun Kyu Shin, Kwang Soo Kim, John Hyun Park
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Patent number: 6086966Abstract: A method for authenticating a textile product, wherein a colorless composition is applied to at least one portion of at least one thread of the textile product. The composition comprises one of a pair of a colorformer and an activator which react when mixed to produce a spectral response. The textile product is authenticated as genuine by applying the other of the pair of the colorformer and activator to at least one portion of the at least one thread to produce the spectral response. The textile product may be a thread or a woven label.Type: GrantFiled: March 1, 1999Date of Patent: July 11, 2000Assignee: Nocopi Technologies, Inc.Inventors: Arshavir Gundjian, Abraham Kuruvilla
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Patent number: 6083588Abstract: A heat-resistant sheet is provided between a fusing roller and a pressing member made of a resilient material. The heat-resistant sheet is composed of a glass fiber substrate coated with or impregnating a fluororesin having good mold lubrication and heat-resistance, such as PFA and PTFE. A paper having a pre-fused toner image is carried through a section between the fusing roller and heat-resistant sheet. Accordingly, wear or separation of the heat-resistant sheet caused by friction with the fusing roller can be prevented, thereby improving durability of the heat-resistant sheet.Type: GrantFiled: January 3, 1996Date of Patent: July 4, 2000Assignee: Sharp Kabushiki KaishaInventors: Toshiaki Kagawa, Toshihiro Tamura, Shogo Yokota, Tatuya Shinkawa, Hiroyuki Sawai
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Patent number: 6080462Abstract: A process for making fire-resistant gel pads comprising: (a) providing a fire-resistant liquid polyol ester; (b) providing a gellant; (c) mixing components (a) and (b) to form a fire-resistant gel; (d) providing a flexible, elastic casing; and (e) encasing the fire-resistant gel in the flexible, elastic casing.Type: GrantFiled: September 20, 1996Date of Patent: June 27, 2000Assignee: Henkel CorporationInventor: Ronald Gordan
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Patent number: 6077794Abstract: A deodorant fibrous material contains (1), as a first deodorant material, at least one deodorant component selected from inorganic type and polyorganic acid, ester or salt type components, (2), as a second deodorant material, at least one of a hydrazine compound and a specified polyvinyl amine compound and (3) a synthetic resin binder. The deodorant fibrous material can be produced by applying to a fibrous material, by a padding or coating method, a liquid composition containing the above components (1)-(3), followed by subsequent heat treatment.Type: GrantFiled: June 9, 1997Date of Patent: June 20, 2000Assignee: Toray Industries, Inc.Inventors: Jirou Tabata, Toshiharu Kanaya, Masayuki Hirata, Kouichi Saito, Kouji Hori, Kouichi Kawaguchi
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Patent number: 6077580Abstract: The invention relates as a whole to composite structures and methods of forming thereof and can be used in particular, in the manufacture of bodies and compartments of flying vehicles used in rocketry and aeronautics.A composite shell shaped as a body of revolution comprises a plurality of multilayer elements forming its structure consisting of a set of crisscrossing strips. Said strips are made of a plurality of fibers formed as a "skin-core" structure and impregnated with a thermoplastic or resilient-elastic binder. The fibers formed as a "skin-core" structure are produced by impregnating the fiber filaments with a thermosetting binder and curing it. Multilayer air-tight shells and multilayer shells of a rib-cellular structure can be produced from said strips (FIG. 1, FIG. 10).Type: GrantFiled: June 26, 1997Date of Patent: June 20, 2000Assignees: Center Perspektivnykh Razrabotok, McDonnell Douglas CorporationInventors: Valery Vitalievich Vasiliev, Vladimir Alexeevich Salov, Oleg Vladimirovich Salov
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Patent number: 6074717Abstract: A flexible hose for use in heating systems has an aluminum barrier layer for preventing ingestion of oxygen. The aluminum barrier layer is securely bonded between two adhesion tubes which are vulcanized in place against the aluminum. Vulcanization is performed in the presence of peroxide. Principal active ingredients of the adhesion tubes are ethylene propylene diene polymethylene and polybutadiene-maleic anhydride adduct resin.Type: GrantFiled: July 29, 1997Date of Patent: June 13, 2000Assignee: Dayco Products, Inc.Inventors: Kent H. Little, John A. Barnes
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Patent number: 6071582Abstract: A rubber layer structure provided with a first rubber layer having a first liquid facing surface for contact with a liquid surface and a second rubber layer in contact with a second surface of the first rubber layer. The first rubber layer is formed of a peroxide vulcanization first rubber compound which mainly comprises EPDM, contains sulfur powder as a co-crosslinking agent and does not contain a zinc compound. The second rubber layer is formed of a sulfur vulcanization second rubber compound which mainly comprises EPDM and contains a zinc compound. The first rubber layer and the second rubber layer are adhered together by vulcanization.Type: GrantFiled: December 29, 1997Date of Patent: June 6, 2000Assignee: Toyoda Gosei Co., Ltd.Inventors: Koichi Tangiku, Atsushi Suzuki, Masayoshi Ichikawa
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Patent number: 6068930Abstract: The matrix of the composite material is made in sequenced manner by chemical vapor infiltration within fiber reinforcement. Each elementary sequence of the matrix comprises a relatively flexible layer and a relatively rigid ceramic layer, and the sequences are of thicknesses that increase going away from the reinforcing fibers, with the thickness at least of the first-deposited sequence being selected to be sufficiently small for the fibers to be coated in essentially individual manner. The flexible layers are made of an anisotropic material having sufficient capacity for elastic deformation in shear and transversely, and although a mainly ceramic character is conserved for the matrix, the thickness of the flexible layers is nevertheless selected to be sufficiently large to be capable of absorbing differential expansion of the components of the composite material while it is being made without inducing the existence of an initial network of cracks.Type: GrantFiled: June 12, 1998Date of Patent: May 30, 2000Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'AviationInventors: Frank Lamouroux, Rene Pailler, Roger Naslain, Michel Cataldi
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Patent number: 6055773Abstract: A vase includes a tire and one of the two sidewalls of the tire is cut into multiple partitions, a board connected to the other sidewall and, a frame fixedly connected to the partitions. The frame has a neck to be fixedly connected to the partitions by bolts, and a plurality lugs extend from the neck, wherein each lug is located between adjacent partitions. A plurality of plates are attached to the outside of the sidewall and are fixedly connected to the lugs by bolts. Soil is filled between the partitions, the board and the frame, and a plant is planted in the soil.Type: GrantFiled: May 3, 1999Date of Patent: May 2, 2000Inventor: Ming-Mou Yang
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Patent number: 6057014Abstract: Adhesion promoting compositions comprising mixtures of carboxylated unsaturated polymers and a) amines; b) amine derivatives; or c) mixtures of hydroxy compounds and quaternary phosphonium salt accelerators or quaternary ammonium salt accelerators are useful as components of curable elastomer compositions. The curable compositions exhibit excellent adhesion to fluoropolymers.Type: GrantFiled: July 23, 1996Date of Patent: May 2, 2000Assignee: E. I. du Pont de Nemours and CompanyInventor: Robert Earl Fuller
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Patent number: 6037025Abstract: A reinforced rubber hose including an inner tube and a reinforcing yarn layer externally contacting the inner tube. The inner tube includes at least an inner-tube inside layer and an inner-tube outside layer, the inner-tube outside layer being formed of a vulcanized diene rubber composition, the inner-tube inside layer being formed of a vulcanized hydrogenated nitrile rubber composition. Both the diene rubber compound and the hydrogenated nitrile rubber composition are vulcanized by a sulfur vulcanization agent. Further, the diene rubber composition contains about 5 to 25 phr of talc, wherein the talc has an average particle diameter of about 1 to 5 .mu.m and an aspect ratio of about 5 to 20.Type: GrantFiled: October 17, 1997Date of Patent: March 14, 2000Assignee: Toyoda Gosei Co., Ltd.Inventors: Shinji Matsunaga, Koichi Tangiku, Atsushi Suzuki
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Patent number: 6037024Abstract: A multi-layer thermoplastic packaging, the outer layer containing at least one filler having particles of different particle size and of a diameter .gtoreq.50 .mu.m, to give a natural stone external appearance and a process for the preparation thereof which includes coextrusion and blowing of the inner and outer layers, to provide the packaging which can be in the form of a flask, bottle, pot or other desired shape.Type: GrantFiled: October 13, 1995Date of Patent: March 14, 2000Assignee: L'OrealInventor: Jean-Louis Gueret
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Patent number: 6033776Abstract: A high shear adhesive tape having an adhesive layer containing a rubber mix and at least one tackifying resin, the rubber mix including an effective amount of a styrenic block copolymer or terpolymer, the adhesive layer further being characterized as being free of any crosslinking agent for rubber in the mix; and pipewrap systems employing this tape. In a particularly preferred embodiment, the rubber mix also includes crosslinked halogenated butyl rubber.Type: GrantFiled: August 20, 1998Date of Patent: March 7, 2000Assignee: Scapa Tapes North AmericaInventors: Elwyn G. Huddleston, Scott C. Barnes, Rosana Bianchini
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Patent number: 6025043Abstract: A chlorosulfonated ethylene-.alpha.-olefin copolymer composition comprising a chlorosulfonated ethylene-.alpha.-olefin copolymer, a thiuram compound, a bismaleimide compound, a nickel dialkyldithiocarbamate, and a diarylmonoamine compound, and a motorcar joint boot obtained by molding and vulcanizing the chlorosulfonated ethylene-.alpha.-olefin copolymer composition. The copolymer composition is excellent in the tensile characteristics at room temperature and low temperature, in the compression set under a low-temperature atmosphere, and in the fatigue resistance.Type: GrantFiled: March 15, 1999Date of Patent: February 15, 2000Assignee: Tosoh CorporationInventors: Yasumichi Miyagawa, Mitsuhiro Kamezawa, Hideyoshi Nakamura, Masahiro Watanuki
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Patent number: 6022602Abstract: The lumen surface of tubing is modified by exposure to a gas plasma in a vacuum apparatus. A method and apparatus are disclosed whereby plasma treatment of the lumen surface, such as by deposition of a plasma polymerizate, may be achieved inside a continuous length of tubing. A gas such as a monomer vapor is caused to enter the lumen of the tubing through openings sequentially arranged at a periodic interval along the length of the tubing, and is excited to a plasma state concurrently as the tubing passes through a tubular reaction conduit having an inner diameter in occlusive contact with the tubing's outer diameter. Essentially crack-free plasma polymerizate coatings with thicknesses greater than 1000 angstroms are selectively deposited on the lumen wall of the continuous tubing. Plasma-modified tubing is prepared having usefulness in medical devices such as catheters, vascular grafts and enteral feeding tubes.Type: GrantFiled: September 27, 1994Date of Patent: February 8, 2000Assignee: NeoMecs IncorporatedInventor: Hiroshi Nomura
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Patent number: 6016845Abstract: A spoolable composite tube capable of being spooled onto a reel for storage and for use in oil field applications. The spoolable tube exhibits unique anistropic characteristics that provide improved burst and collapse pressures, increased tensile strength, compression strength, and load carrying capacity, while still remaining sufficiently bendable to be spooled onto a reel in an open bore configuration. The spoolable composite tube can include an inner liner, an interface layer, fiber composite layers, a pressure barrier layer, and an outer protective layer. The fiber composite layers can have a unique triaxial braid structure.Type: GrantFiled: September 27, 1996Date of Patent: January 25, 2000Assignee: Fiber Spar and Tube CorporationInventors: Peter A. Quigley, Stephen C. Nolet, Jerry G. Williams
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Patent number: 6013374Abstract: The present invention relates to battery parts comprising molded pieces made of polyolefin resin, whose surface to be bonded are treated so as to have at least one functional group selected from the group consisting of hydroxyl group, carboxyl group, carbonyl group, fluorosulfuryl group, sulfonic group and its metallic bases, said molded pieces being bonded together with reactive hot-melt adhesive.Type: GrantFiled: January 13, 1998Date of Patent: January 11, 2000Assignee: Mitsubishi Chemical CorporationInventors: Akira Watanabe, Isao Kaneko, Atsushi Kasai, Kunio Bizen
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Patent number: 6013340Abstract: The present invention relates to membranes including an urethane including a polyester polyol, wherein the membrane has a gas transmission rate of 15.0 or less for nitrogen gas wherein the membrane has an average thickness of approximately 20.0 mils. Under certain embodiments, the membranes include blends of one or more polyester polyol based thermoplastic urethanes and one or more barrier materials. The membranes can be employed in a variety of applications and can be used as either monolayers or multi-layered laminates.Type: GrantFiled: December 12, 1995Date of Patent: January 11, 2000Assignee: Nike, Inc.Inventors: Henry W. Bonk, David Goldwasser
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Patent number: 6009910Abstract: Refrigerant transporting hose comprising an inner tube formed of a rubber composition based on an isobutylene.p-methylstyrene copolymer in which part or all of the p-methylstyrene units are brominated, and an outer tube around the inner tube with a reinforcing layer interposed, is improved not only in softness and resistance to the permeation of refrigerants but also in vibration and sound absorbing characteristics.Type: GrantFiled: June 29, 1998Date of Patent: January 4, 2000Assignee: The Yokohama Rubber Co., Ltd.Inventor: Hiroaki Shibano