Patents Issued in June 18, 1991
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Patent number: 5024842Abstract: A dosage form is disclosed comprising a coat that surrounds a drug. The coat comprises a subcoat and an overcoat thermally annealed to provide a single unit coat around the drug.Type: GrantFiled: April 2, 1990Date of Patent: June 18, 1991Assignee: ALZA CorporationInventors: David E. Edgren, Felix Theeuwes
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Patent number: 5024843Abstract: A dosage form is disclosed comprising the antidiabetic drug glipizide for administering to a patient in need of glipizide therapy.Type: GrantFiled: September 5, 1989Date of Patent: June 18, 1991Assignee: ALZA CorporationInventors: Anthony L. Kuczynski, Atul D. Ayer, Patrick S.-L. Wong
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Patent number: 5024844Abstract: Disclosed is a process for the production of dried earthworm powder which comprises the steps of leaving a species of living earthworms in fresh water or a slightly acidic aqueous solution until the alimentary canal thereof is freed of soil, wet-grinding the living earthworms, and freeze-drying and then vacuum-drying the resulting suspension under a vacuum of 10 mmHg or below for 10 to 100 hours while raising the temperature stepwise from -60.degree. C. to 80.degree. C. This dried earthworm powder may be combined with pharmaceutically acceptable carriers to form pharmaceutical compositions which are useful for the treatment or prevention of hyperlipemia, diabetes, hypertension and hypotension in human beings.Type: GrantFiled: August 5, 1988Date of Patent: June 18, 1991Assignee: Eimei Company, Ltd.Inventors: Yoichi Ishii, Hisashi Mihara
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Patent number: 5024845Abstract: A mutant strain of Schizosaccharomyces #442 (ATCC46954) requiring both glucose and L-malic acid for growth has been produced which is capable of completely utilizing L-malic acid without substantial depletion of glucose. The mutant strain is known as Schizosaccharomyces malidevorans Rodriguez-Thornton #11 (ATCC20771). The yeast is capable of being used to remove L-malic acid from mediums including both L-malic acid and glucose thus making it possible to remove L-malic acid from juices without affecting sweetness, or from grape juices during wine-making conditions without affecting the quantities of glucose available for alcohol fermentation.The invention extends to juice products and wine made using such mutant strains.Type: GrantFiled: December 23, 1987Date of Patent: June 18, 1991Assignee: Massey UniversityInventors: Roy J. Thornton, Susan B. Rodriguez
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Patent number: 5024846Abstract: A process for separating sterols from lipids, (e.g. cholesterol from butter fat) using sub or supercritical fluids (such as CO.sub.2) by dissolving the sterol/lipid mixture in a high pressure physiologically acceptable fluid (either as a high pressure liquid or as a high pressure sub or supercritical gas), to form a high pressure fluid mixture, and then contacting the high pressure fluid mixture with an adsorbent material chosen from the group consisting of calcium hydroxide, calcium oxide, calcium carbonate, magnesium carbonate and magnesium hydroxide to selectively adsorb sterols on the adsorbent material, and then removing the substantially sterol free lipids from the high pressure fluid.Type: GrantFiled: August 2, 1990Date of Patent: June 18, 1991Assignee: Carran Norman Stuart McLachlanInventors: Corran N. S. McLachlan, Owen J. Catchpole, Bruce H. Hamilton
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Patent number: 5024847Abstract: This invention provides oxygen or sulfur containing compounds possessing fruity, floral, or woody odors. These compounds may be used to fragrance or flavor a variety of consumer products such as tobacco products, foodstuffs, beverages, gums, mouthwashes, toothpastes, cosmetics, pharmaceutical preparations, and medicinal products. The disclosure also provides a process for the preparation of these compounds.Type: GrantFiled: September 18, 1989Date of Patent: June 18, 1991Assignee: BASF K&F CorporationInventors: Philip A. Christenson, Robert G. Eilerman, Paul J. Riker, Brian J. Drake
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Patent number: 5024848Abstract: A process whereby sweetened condensed milk (SCM) is used as a starting material. The SCM is pumped to a stainless steel refrigerated holding tank where it is diluted to 50.degree.-65.degree. brix (solids) with water. The product is then pumped into a continuous vacuum dryer, through a deaerator to control foaming and then into a feed pan. A stainless steel feed roll rotates in the feed pan and picks up SCM product which then deposits a uniform layer of the SCM on a continuous stainless steel belt. The clearance between the feed roll and the stainless steel belt is 0.015 to 0.025 inches. The SCM product then goes through three heat zones at which vapor is driven off. Heat zone 1 preconcentrates and degasses the SCM. This increases the area and volume of product so that is can withstand rapid evaporation occurring in heat zone 2. Heat zone 2 includes a hot drum at which a major portion of the drying occurs. Heat zone 3 adds additional heat to collapse puff and control final moisture content of the SCM crystals.Type: GrantFiled: March 9, 1990Date of Patent: June 18, 1991Assignee: Crystals InternationalInventor: Cindy E. Little
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Patent number: 5024849Abstract: A liquid coffee whitener comprising an aqueous emulsion system which contains as its essential ingredients fat or oil, water, carbohydrate, and an amount of a protein hydrolysate effective to provide a stable emulsion and buffer the emulsion, with the emulsion having a pH of above 7.0. The use of protein hydrolysate provides an effective alternative, both functionally and organoleptically, the the use of sodium caseinate and buffering salts used in coventional liquid coffee whiteners.Type: GrantFiled: May 1, 1990Date of Patent: June 18, 1991Assignee: Nestec S.A.Inventor: Casimir E. Rasilewicz
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Patent number: 5024850Abstract: A method of manufacturing a polarization filter, in which a mixture of a liquid crystalline diacrylate monomer or dimethacrylate monomer and a dichroic colorant is provided on a substrate, oriented and polymerized by exposing it to radiation, as well as a polarization filter which is manufactured according to the above method, and a display comprising the polarization filter.Type: GrantFiled: December 6, 1989Date of Patent: June 18, 1991Assignee: U.S. Philips CorporationInventors: Dirk J. Broer, Jan Van Der Veen
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Patent number: 5024851Abstract: Reusable, launderable, sterilizable medical barrier fabric tightly woven from 100% polyester fiber constructed of polyester yarn of from 50 to 150 denier, the sum of the ends and picks of at least 100 per linear inch, is treated with a flame-resistant, water repellent, antimicrobial finish. Medical garments, wraps and like sterilizable articles constructed of this fabric retain their desirable properties after repeated institutional launderings and/or steam sterilizations.Type: GrantFiled: October 10, 1989Date of Patent: June 18, 1991Assignees: Precision Fabrics Group Inc., Standard Textile Co., Inc.Inventors: Conrad D. Goad, Jeffrey L. Taylor
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Patent number: 5024852Abstract: A process for the manufacture of a prophylactic device having contained therein at least one pharmaceutically active substance, comprising:forming a first layer of elastomeric material into the desired shape of the prophylactic device;prevulcanizing the first layer;applying to one side of the first layer a layer of microcapsules having at least one pharmaceutically active substance encapsulated therein;depositing on the coating of microcapsules a second layer of elastomeric material; andvulcanizing the first and second layers of elastomeric material. The device may be in the form of a contraceptive sheath, finger stall or glove, and protects the user from contamination by various germs, viruses, fungi and other pathogens in the whole area of the body covered by the device.Type: GrantFiled: March 28, 1990Date of Patent: June 18, 1991Assignee: HutchinsonInventors: Rene-Guy Busnel, Gilles Argy
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Patent number: 5024853Abstract: Method to control the thickness of an antireflection coating.According to the invention, the semi-conductive structure (14) is fed with a constant current (16) and the voltage (24) is measured at its terminals. This voltage passes through a maximum when the reflectivity of the antireflection coating passes through a minimum.Application for the embodiment of semi-conductive lasers.Type: GrantFiled: June 28, 1990Date of Patent: June 18, 1991Assignee: Etat Francais represente par le MinistreInventors: Jean Landreau, Hisao Nakajima
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Patent number: 5024854Abstract: A perpendicular type magnetic recording member comprising a perpendicular-incidence magnetic film on a substrate, the perpendicular-incidence magnetic film comprising a magnetic metal and oxygen, the magnetic metal being selected from the group consisting of ferro-magnetic alloys, alloys thereof and combinations thereof; and a method of manufacturing the perpendicular type recording member by utilizing vapor deposition techniques, which may include sputtering and ionization.Type: GrantFiled: September 22, 1989Date of Patent: June 18, 1991Assignee: Nihon Shinku Gijutsu Kabushiki KaishaInventors: Kyuzo Nakamura, Yoshifumi Ota, Taiki Yamada
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Patent number: 5024856Abstract: A method and an apparatus enable the application of a flux material onto a geometrically defined joint to be soldered.The flux material is first ultrasonically atomized in a pressureless or almost pressureless manner. Thereafter, the flux material mist is transported and applied to the joint to be soldered by a directed air stream.Type: GrantFiled: December 29, 1989Date of Patent: June 18, 1991Inventor: Ernst Hohnerlein
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Patent number: 5024857Abstract: A method for coating an armature of a rotary electric apparatus conducts the coating process step by step in first and second processes for coating the external circumference of an armature with a coating material. The second coating process is conducted after the first coating material already coated by the first coating process is gelled to a hardened state.Type: GrantFiled: February 14, 1990Date of Patent: June 18, 1991Assignee: Mitsuba Electric Manufacturing Co., Ltd.Inventor: Ikuo Arakawa
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Patent number: 5024858Abstract: A method is disclosed for metallizing polymers comprising generating anionic sites on the structures, contacting same with the cation of the metal and then reducing the metal cation to metal at the anionic sites or treating the metal cations to form a semiconductor. The metallized polymers are useful as electrical conductors or semiconductors.Type: GrantFiled: May 17, 1989Date of Patent: June 18, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Robert R. Burch
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Patent number: 5024859Abstract: An oxide barrier coating for reinforcing fiber is provided with a preselected microstructure and thickness through control of the concentration of metal salt in heat decomposable form as a precursor of metal oxide. In one form, the salt is a metal oxyhalide salt such as zirconium oxyhalide or halfnium oxyhalide. Fibers, such as ones of alumina, aluminasilicate or silicon carbide, having the coating of the invention are especially useful as reinforcing fibers for reinforced ceramic matrix composites.Type: GrantFiled: November 20, 1989Date of Patent: June 18, 1991Assignee: General Electric CompanyInventors: Michael L. Millard, Michael G. Harrison, Andrew Szweda
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Patent number: 5024860Abstract: A process for forming a low smoke, low erosion rocket motor insulation comprising mixing organic fiber selected from the group polyaramid and polybenzimidazole; an inorganic powder filler; a vulcanizable hydrocarbon elastomer and a non-fluorinated phosphazene polymer of the formula ##STR1## where Q and Q' are the same or different and are substituted or unsubstituted alkoxy or aryloxy and Q" is a group having olefinic unsaturation.Type: GrantFiled: May 24, 1989Date of Patent: June 18, 1991Assignee: Ethyl CorporationInventor: Suae-Chen Chang
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Patent number: 5024861Abstract: The invention comprises a process for the preservation of timber with a boron based compound, such as trimethyl borate. The timer is dried to a low moisture content, is then subjected to a vapor of the boron compound in a suitable treatment vessel, and after vapor treatment is steam conditioned to return the moisture content of the timber to a normal working level. The vapor treatment is preferably carried out under heat and reduced pressure. Timber preserved by the process is also claimed.Type: GrantFiled: June 23, 1988Date of Patent: June 18, 1991Assignee: Her Majesty the Queen In Right of New Zealand Acting by and Through the Minister of Forestry for New ZealandInventors: Peter Vinden, Russell J. Burton, Timote M. Vaioleti
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Patent number: 5024862Abstract: An automated cutting and kitting system for preimpregnated composite material and method by which a layup of a plurality of plies of at least two types of preimpregnated composite material is cut and stored. Each ply of a given type of preimpregnated composite material is aligned in the order in which it is positioned in the layup, cut in accordance with a predetermined shape and stored such that the top ply in the layup is stored first. The different types of preimpregnated composite material are supported on a supply which is indexed to present the particular type of material required by the layup.Type: GrantFiled: September 19, 1990Date of Patent: June 18, 1991Assignee: The Boeing CompanyInventor: Ed Frank
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Patent number: 5024863Abstract: A method is shown for manufacturing an engine gasket having reduced oil permeability. The engine gasket is formed in the desired shape from a silicone rubber compound having an inner surface exposed to hot engine oil and an outer surface. A silicone varnish coating is applied to at least the inner surface of the engine gasket, whereby the inner surface is substantially coated by the silicone varnish coating.Type: GrantFiled: February 2, 1990Date of Patent: June 18, 1991Assignee: JMK International, Inc.Inventor: Robert M. Gibbon
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Patent number: 5024864Abstract: Methods and apparatus are provided for applying a colorant material to the surface of a plastic insulation material which has been applied to an elongated material such as a metallic conductor (22) or an optical fiber which is being moved at any of a wide range of speeds along a path of travel. The coolant material is applied by nozzles which are staggered along the path of travel and which direct the colorant into engagement with the plastic insulation material at different radial directions. A first plurality of nozzles (46--46) each cause the colorant to be in a spray pattern (45) which is in the area of a plane. Advantageously, those nozzles cooperate to stabilize the conductor and prevent undulations thereof as the conductor is moved along its path of travel. A second plurality of nozzles (50--50) cause the colorant to be in a solid conical pattern (53).Type: GrantFiled: October 30, 1989Date of Patent: June 18, 1991Assignee: AT&T Bell LaboratoriesInventors: Larry L. Bleich, Joni A. Roberts, Stephen T. Zerbs
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Patent number: 5024865Abstract: An article comprising compressed particles of polyolefin microfibers is provided. The article has a solidity of at least 20% is particularly suitable as a container for shipping and storing hazardous liquid materials or a cryogenic container.Type: GrantFiled: October 2, 1990Date of Patent: June 18, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: Thomas I. Insley
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Patent number: 5024866Abstract: A strong, lightweight, flexible ski pole and a method for making it. The ski pole comprises a filament-reinforced, resin-matrix composite shaft with anti-splinter material to prevent filament splinters from protruding from the outer surface of the shaft. In one embodiment, the shaft comprises a filament-reinforced, resin-matrix composite hollow outer shaft continuously integrally pultruded about a core member. In another embodiment of the invention, the shaft comprises a filament-reinforced, resin-matrix solid pultruded body. In both embodiments, a polyester veil is wrapped around the filaments within the resin matrix to prevent filament splinters from protruding from the outer surface of the ski pole shaft. Cut lengths of the ski pole shaft are fitted with a basket adaptor, a basket, a tip and a grip to make a finished ski pole.Type: GrantFiled: January 12, 1989Date of Patent: June 18, 1991Assignee: SKI Accessories, Inc.Inventor: David P. Goode
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Patent number: 5024867Abstract: A dopant film contains an organic binder, an inorganic binder and a compound of an impurity element for diffusion. Both surfaces of the dopant film are coated with adhesive. Releasable sheets sandwich the dopant film. The dopant film permits automated alternate stacking with semiconductor wafers, providing an advantage of labor saving. When the alternate stacking is automated, it will become hard for the wafer breakage to occur, sharply decreasing the rate of breakage. Furthermore, since the adhesion of a semiconductor wafer improves, the variation in the diffusion depth will decrease.Type: GrantFiled: October 27, 1988Date of Patent: June 18, 1991Assignee: Kabushiki Kaisha ToshibaInventor: Masaburo Iwabuchi
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Patent number: 5024868Abstract: A dust control mat (5) with pile and a caoutchouc or plastic backing (6) comprises a layer (1) of pile and a nonwoven primary bottom thereof being fixed to the backing material (6). A flexible reinforcing layer consists of fibers selected from nonwoven materials and spun-bonded materials, the fibers of which have been heat fixed and crosslinked, and whereby at least a part of at least one of the side edges of the reinforcing layer (3) has been exposed on the surface of the backing (3) within the piled area.Type: GrantFiled: October 19, 1989Date of Patent: June 18, 1991Assignee: Milliken Denmark A/SInventor: Helle B. Petersen
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Patent number: 5024869Abstract: The present invention pertains to thermoplastically processable synthetic polymers and fibers produced therefrom which are rendered flame retardant by certain organic pigments which are substantially unreactive with the polymer. The flame retardant materials include:(i) carbon black pigment;(ii) ##STR1## (iii) a chromium 1:2 complex azo dye wherein said dye has the following formula: ##STR2## (iv) ##STR3## wherein: m, n, p, and q are each either 0 or an integer from 1 to about 4; or,(v) mixtures thereof.Type: GrantFiled: June 8, 1989Date of Patent: June 18, 1991Assignee: BASF CorporationInventors: Ling Yeh, Hugh G. Harrelson, Jr.
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Patent number: 5024870Abstract: The invention includes a filter element (10) having a pair of end caps (12) with pleated, corrugated filter media (14) spanning therebetween. The filter media (14) is sealed or potted into the end caps (12) with a potting material ( b 16). To ensure substantially uniform penetration of the plates of the media (14) by the potting material (16), the edges of the media (14) are configued to eliminate "linear check valve" action between pleats. Several edge patterns can be used to minimize the formation of linear check valves, including a saw tooth pattern; sine wave pattern; vertical edge corrugations; flat edge regions; and saw kerfs in the edges of the media.Type: GrantFiled: February 19, 1987Date of Patent: June 18, 1991Assignee: Donaldson Company, Inc.Inventor: William E. Jackson
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Patent number: 5024871Abstract: A composite material is presented comprised of a ceramic filled fluoropolymer wherein the ceramic is coated with a zirconate coupling agent and/or a titanate coupling agent.Type: GrantFiled: February 21, 1990Date of Patent: June 18, 1991Assignee: Rogers CorporationInventors: David J. Arthur, Gwo S. Swei
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Patent number: 5024872Abstract: A sheet of polymer material is secured between a pair of clamping members. The sheet is directed through a localized heated region to provide a localized heated portion of said sheet. A first one of said clamping members is pulled away from the second clamping members to stretch said sheet and create from the localized heated portion of said sheet a neck-down region. The neck-down region separates providing a pair of neck-down region portions and a reduced thickness portion or stretched portion of the sheet between said neck-down region portions. One of said neck-down regions propagates along unstretched portions of the sheet as the movable clamping member moves away from the fixed clamping member while the other neck-down region remains adjacent the fixed member. This propagating neck-down region portion of the sheet is kept within the localized heated region by moving the localized heated region at a rate related to the rate which unstretched material of the sheet is fed into the neck-down region portion.Type: GrantFiled: August 13, 1987Date of Patent: June 18, 1991Assignee: Raytheon CompanyInventors: David T. Wilson, Roger H. Tancrell
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Patent number: 5024873Abstract: A Langmuir-Blodgett monolayer polyimide film and a bulk amorphous polyimide film are in contacting superposed relation to form a composite film having improved moisture resistance. The composite film may be either a free film or provide an insulating coating on the surface of a microelectronics device.Type: GrantFiled: December 5, 1988Date of Patent: June 18, 1991Assignee: AT&T Bell LaboratoriesInventors: John J. Burack, Jane D. LeGrange, Wesley P. Townsend
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Patent number: 5024874Abstract: A novel three dimensional fabric is disclosed that has a base formed from a multiplicity of woven strings. The strings are arranged and woven to form a fabric having a multiplicity of warps arranged in a plurality of rows and columns, a plurality of first wefts crossing the warp columns in the interstitial spaces between adjacent warp rows, and a plurality of second wefts crossing said warps and said first wefts in the interstitial spaces between adjacent warp columns. The three dimensional fabric also has a solid linkage mechanism incorporated into the fabric's body by a plurality of the strings that are wound about its periphery.Type: GrantFiled: February 13, 1990Date of Patent: June 18, 1991Assignees: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Japan Defense AgencyInventors: Yoshiharu Yasui, Meiji Anahara, Goro Asahi, Shiro Miyake
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Patent number: 5024875Abstract: Waterproof, moisture-vapor-permeable urethane-coated fabrics with durable antimicrobial properties that remain after repeated launderings are prepared by incorporating bioactive silyl quaternary ammonium salts into the polyurethane elastomer solvent solution that forms a microporous polyurethane layer by the wet coagulation method on a base fabric.Type: GrantFiled: September 9, 1986Date of Patent: June 18, 1991Assignee: Burlington Industries, Inc.Inventors: Berlie R. Hill, Thomas F. Watson, Sr., Benny L. Triplett
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Patent number: 5024876Abstract: A reinforced plastic is provided which comprises a continuous long fiber reinforcing material in an ether group-containing poly(arylene sulfide sulfone) polymer matrix.Type: GrantFiled: February 28, 1990Date of Patent: June 18, 1991Assignee: Phillips Petroleum CompanyInventors: Rex L. Bobsein, Mark L. Stone, Jon F. Geibel
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Patent number: 5024877Abstract: A means for improving the fire resistance of carbonaceous polymeric substance comprising a non-graphitic carbonaceous polymeric material having an LOI value greater than 40, produces a char formation greater than 65% and a thermoconductivity less than 1 BTU ft/Hr ft.sup.2 .degree.F. by utilizing an organosilicone polymer in an amount to provide ignition resistance. Also, there is provided a means for improving the fire resistance and thermal stability of resins and polymers.Type: GrantFiled: February 14, 1990Date of Patent: June 18, 1991Assignee: The Dow Chemical CompanyInventors: Francis P. McCullough, Jr., R. Vernon Snelgrove, David M. Hall
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Patent number: 5024878Abstract: The material is formed by a fibrous reinforcement constituted by a texture of carbon or silicon carbide fibers and a matrix deposited by chemical vapor infiltration through the porosity of the fibrous fabric and containing free carbon co-deposited with the zirconia, the weight proportion of free carbon co-deposited with the zirconia in the matrix being preferably between 0.1 and 10%. In comparison with pure or partly stabilized fritted zirconias, the composite zirconia according to the invention exhibits an improved tenacity, preservation of the mechanical strength and dimensional stability under high temperatures, as well as an improved density, without the introduction of the fibrous reinforcement reducing too excessively the properties of heat insulation and resistance to oxidation.Type: GrantFiled: August 28, 1989Date of Patent: June 18, 1991Assignee: Societe Europeenne de PropulsionInventors: Christian Robinbrosse, Roger Naslain, Jacky Minet, Francis Langlais
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Patent number: 5024879Abstract: Process for consolidating solid materials and/or articles, which exhibit at least a low cohesion degree area associated with at least one structural discontinuity, debouching or opening into the surface and/or pervious from the surface of said material and/or article, with ports or openings having sizes equal to at least 0.01 micron, which process comprises:(a) introducing into said low-cohesion area associated with a structural discontinuity vapors of at least one p-xylylene monomer and/or a monomer derivative thereof, operating under vacuum, and(b) polymerizing said monomer vapors in situ inside said low-cohesion area associated with said structural discontinuity.Type: GrantFiled: December 26, 1989Date of Patent: June 18, 1991Assignee: Ausimont S.p.A.Inventors: Vincenzo Massa, Aldo Cicuta, Walter Cavigiolo
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Patent number: 5024880Abstract: Phase-separated, polymerized, cellular pressure-sensitive adhesive membranes possessing a high degree of compression recovery comprising from about 70 parts to about 98 parts of an acrylic polymer containing at least about 75 parts of an alkyl acrylate monomer, the alkyl groups of which have an average of 4 to 12 carbon atoms, and from 0 to about 25 parts of a monoethylenically unsaturated polar copolymerizable monomer, and correspondingly, from about 30 parts to about 2 parts of a saturated hydrocarbon elastomer or blend of hydrocarbon elastomers containing at least one segment having a lower glass transition temperature than the acrylic copolymer. The adhesive has at least a first phase and a second phase, the first phase consisting primarily of the elastomer, and at least one phase is a continuous phase.Type: GrantFiled: January 3, 1990Date of Patent: June 18, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: George F. Veasley, Jurgen Klingen, Donald T. Landin
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Patent number: 5024881Abstract: A material for composite sliding surface bearings having a plastic sliding layer comprises a metallic backing layer and a sliding layer that is joined to the backing layer and consists of a matrix-forming fluorine-containing polymer, in which a metal powder having a high affinity to fluorine is finely dispersed. In order to reduce the friction torque and the wear rate, the fluorine-containing polymer contains metal fluoride and metal oxyfluoride and consists of monoclinally crystallized PVDF, amorphous PVDF and a novel polymer, which in an X-ray diffractogram prepared by CuK .alpha.-radiation has a sharp intensity peak at a double Bragg angle of 2.theta.=18.07.+-.0.03.degree. and has a melting range of 320.degree. to 350.degree. C. and is free of ortho-rhombically crystallized PVDF.Type: GrantFiled: May 2, 1989Date of Patent: June 18, 1991Assignee: Kolbenschmidt AktiengesellschaftInventors: Karl-Heinz Matucha, Thomas Steffens, Hans-Paul Baureis, Wolfgang Bickle, Jurgen Braus
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Patent number: 5024882Abstract: A material for composite sliding surface bearings having a plastic sliding layer comprises a metallic backing layer and a sliding layer that is joined to the backing layer and consists of a matrix-forming fluorine-containing polymer, in which a metal powder having a high affinity to fluorine is finely dispersed. In order to increase the life, a fluorine-containing polymer is provided, which in an X-ray diffractogram prepared by CuK.alpha.-radiation has a sharp intensity peak at a double Bragg angle of 2.theta.=18.07.+-.0.03.degree. and has a melting range of 320.degree. to 350.degree. C. and contains metal fluoride and metal oxyfluoride.Type: GrantFiled: May 2, 1989Date of Patent: June 18, 1991Assignee: Kolbenschmidt AktiengesellschaftInventors: Karl-Heinz Matucha, Thomas Steffens, Hans-Paul Baureis, Wolfgang Bickle, Jurgen Braus
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Patent number: 5024883Abstract: The present invention is directed to components and the process of forming the components for housing semiconductor devices. The components are formed of a unique ceramic-glass-metal composite material comprising ceramic particles, metallic particles and a glass matrix with said ceramic and metallic particles dispersed throughout. Metal elements can be embedded into the material to enable simplified fabrication of devices such as semiconductor packaging.Type: GrantFiled: September 14, 1989Date of Patent: June 18, 1991Assignee: Olin CorporationInventors: Narendra N. SinghDeo, Deepak Mahulikar, Sheldon H. Butt
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Patent number: 5024884Abstract: Porous plasma arc sprayed powder metal abradable materials used in knife edge labyrinth seals of gas turbine engines have their resistance to erosion improved when a thin ceramic surface layer containing fine aluminum particulate is applied. The fine equiaxed particulate and ceramic are applied as an aqueous liquid so that both the particulate and cermic matrix material fill the surface pores, without penetrating further into the powder metal material and thereby adversely affecting desirable abradability characteristics.Type: GrantFiled: January 23, 1987Date of Patent: June 18, 1991Assignee: United Technologies CorporationInventor: William F. Otfinoski
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Patent number: 5024885Abstract: A magnetic recording medium is described, comprising a nonmagnetic support having thereon a magnetic layer containing ferromagnetic particles which are a hexagonal system tabular particle, and which have an axis of easy magnetization in a direction of perpendicular to the major axis of the plate and are dispersed in a binder, wherein said ferromagnetic particles have a saturation magnetization of 60 emu/g or higher, a specific surface area (BET method) of from 25 to 70 m.sup.2 /g, an average particle diameter of from 0.01 to 0.2 .mu.m, and a coercive force of from 400 to 2000 oersteds, and said biner contains a resin having at least one kind of polar group in an amount of 1.times.10.sup.-5 eq/g or more of the polar group.Type: GrantFiled: September 30, 1988Date of Patent: June 18, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasushi Endo, Mikihiko Kato, Toshio Kawamata, Kouichi Masaki
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Patent number: 5024886Abstract: Sealing system for roofs by means of two successive sealing layers. The first sealing layer is mechanically attached to the support and the second, self-adhesive, sealing layer is attached to the first sealing layer by cold self-adhesion. The first sealing layer comprises sealing sheets made up by the assembling of one asphalt-base sheet reinforced by an armature and of a film of a polymer having a high tear resistance.Type: GrantFiled: September 22, 1988Date of Patent: June 18, 1991Assignee: Soprema S.A.Inventors: Pierre Geisen, Jean-Claude Reillaudoux
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Patent number: 5024887Abstract: Disclosed is a thermo-sensitive transfer ink ribbon to be used for producing a dry type transfer material, which is constituted by: a ribbon substrate material; an ink layer formed on a surface of the substrate material and containing a coloring agent, a binder agent, a pressure-sensitive adhesive in the form of dispersion of fine particles; and a transfer property control layer formed on the ink layer and containing a thermo-sensitive adhesive and a tackiness agent. Further disclosed is a method of producing the thermo-sensitive transfer ink ribbon which comprises the steps of: dissolving/dispersing a coloring agent, a binder agent, and a pressure-sensitive adhesive in a predetermined solvent; applying the solvent onto a surface of a ribbon substrate material so as to form an ink layer on the surface; and coating the ink layer with a mixture in which a thermo-sensitive adhesive and a tackiness agent are mixed with each other in the form of a predetermined solution or dispersion liquid.Type: GrantFiled: January 23, 1989Date of Patent: June 18, 1991Assignee: Brother Kogyo Kabushiki KaishaInventor: Mitsuo Yamane
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Patent number: 5024888Abstract: A hot melt adhesive and a laminar structure fabricated from a blend comprising a modified or unmodified ethylenic copolymer, a modified or unmodified butene-1 homopolymer or copolymer, a stabilizer and one or more of: a tackifying resin compatible with the major amount of modified polymer, a wax, and atactic polypropylene.Type: GrantFiled: July 30, 1990Date of Patent: June 18, 1991Assignee: Shell Oil CompanyInventors: Charles C. Hwo, Simone Mostert
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Patent number: 5024889Abstract: The invention relates to a surface treatment for silicon carbide filaments. A carbon-rich silicon carbide layer or coating is formed over the silicon carbide surface. The ratio of silicon to carbon in the carbon-rich silicon carbide layer varies from 1 (stoichiometric) at the silicon carbide filament interface to about 0.43 (70% carbon, 30% silicon) at the exterior surface of the carbon-rich layer. A preferred method of making the carbon-rich silicon carbide layer is also presented.Type: GrantFiled: March 16, 1989Date of Patent: June 18, 1991Assignee: Avco CorporationInventor: Raymond C. Loszewski
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Patent number: 5024890Abstract: An aqueous size composition for glass fibers is disclosed which includes a coupling agent, a binder or film former material and a thermoplastic polymer resin powder, wherein said composition is applied to the glass fiber surfaces during the fiber forming process. A rheology modifier material may be added to the size composition. One embodiment of the composition includes an organosilane coupling agent, a polyethylene oxide binder material and a polyamide thermoplastic polymer resin.Type: GrantFiled: November 22, 1988Date of Patent: June 18, 1991Assignee: Owens-Corning Fiberglass CorporationInventors: Jean C. Pollet, Gary L. Williams, Gordon P. Armstrong, Martin C. Flautt
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Patent number: 5024891Abstract: A polyamide resin-metal laminate comprising a metal substrate having a heat-treated epoxy resin coating layer on its surface and a polyamide resin laminated on the coating layer of the substrate, said coating layer having the following surface analytical spectrum values as measured by electron spectroscopy for chemical analysis (ESCA method):(1) Relative elemental content of carbon element (C.sub.1s spectrum): at least 50 atomic %,(2) Relative contents based on the total content of C.dbd.O, C--O, C.dbd.C--C.dbd.C, CH and C--C functional groups of C.sub.1s spectrum, as determined by the respective waveform analyses: C.dbd.O group: at least 4.0 atomic %, and C--O group: at most 25 atomic %.Type: GrantFiled: September 19, 1989Date of Patent: June 18, 1991Assignee: Mitsubishi Plastics Industries limitedInventors: Norio Yoshiga, Masahiro Kawamura, Hiroshi Nonoyama
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Patent number: 5024892Abstract: A magnetic recording medium comprising a non-magnetic support having provided thereon a magnetic layer, containing ferromagnetic particles dispersed in a binder, wherein the binder comprises a copolymer comprising at least one vinyl compound having a dialkylaminoalkyl group and at least one copolymerizable vinyl monomer capable of being copolymerized with the vinyl compound.Type: GrantFiled: May 9, 1988Date of Patent: June 18, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideomi Watanabe, Tsutomu Okita