Patents Examined by Marion McCamish
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Patent number: 5888617Abstract: An object with a homogeneous matted surface is provided which can be carried out in a simple manner and at low cost. The surface of the object has a thin skin layer produced by UV polymerization at a wavelength of at most 200 nm, and a core or carrier layer, beneath the skin layer, is produced by polymerization with UV radiation of a wavelength of at least 220 nm or by electron beams. A method for producing the matted surface is also provided, wherein a film made of an organic material that can be polymerized by UV radiation or electron beams is applied to a substrate; the film is irradiated with UV radiation of a wavelength of at most 200 nm, with the production of the skin layer at the surface, in which the organic material is at least partially polymerized; and the core area of the film, beneath the skin layer, is irradiated with UV radiation having a wavelength above 220 nm or by electron beams.Type: GrantFiled: September 12, 1996Date of Patent: March 30, 1999Assignee: Heraeus Noblelight GmbHInventor: Angelika Roth
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Patent number: 5888912Abstract: A coated duct fabric for wire wound flexible ducts that is constructed from woven fabric having flat filament fill yarns and spun warp yarns woven in a 1/1 plain box weave.Type: GrantFiled: May 19, 1997Date of Patent: March 30, 1999Assignee: Worthen Industries, Inc.Inventor: Vincent J. Piemonte
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Patent number: 5888626Abstract: This invention describes two products both with a plain, fine textured, nonperforated surface visual consisting of a fiberboard substrate with or without a laminated porous nonwoven scrim and then a finished painted surface. The finish painted surface decorates or finishes the board, but most important, must remain acoustically transparent to retain the sound absorption properties of the fiberboard prior to painting. The fiberboard substrate is made to be porous or modified with hole perforations to cause it to be a good sound absorber. If the fiberboard substrate is sufficiently porous without hole perforations, then the sprayable, high solids, porous paint can be directly applied. If hole perforations are used to improve the sound absorption properties of the board substrate, then a porous, nonwoven scrim is attached and painted using the same high solids porous paint.Type: GrantFiled: January 27, 1997Date of Patent: March 30, 1999Assignee: Armstrong World Industries, Inc.Inventor: Darryl L. Sensenig
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Patent number: 5886079Abstract: Polymer fine particles are obtained by emulsion-polymerizing one or more monomers having a carboxylate group represented by the following formula and an unsaturated group that is radical polymerizable:--COO.sup.- X.sup.+ (I)wherein in the formula (I), X.sup.+ is one species selected from the group consisting of monovalent metal ion, ##STR1## wherein R.sub.1 to R.sub.5 may be the same or different, representing hydrocarbon groups having a number of carbon atom or atoms of 1 to 4 respectively. Alternatively, polymer fine particles may be obtained by performing emulsion polymerization in the presence of a compound containing the foregoing carboxylate group. In the obtained polymer fine particles, the carboxylate group is incorporated into surfaces of the fine particles by the aid of covalent bond or physical adsorption. Metallic parts such as those contained in a printer are not corroded owing to the presence of the carboxylate group on the surfaces of the fine particles.Type: GrantFiled: November 27, 1996Date of Patent: March 23, 1999Assignee: Hitachi Maxell, Ltd.Inventors: Shouji Saibara, Kouji Takazawa
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Patent number: 5886092Abstract: Disclosed are methods for preparing carbon-containing materials resistant to alkali metal disruption, and compositions suitable for the preparation of carbon-containing materials resistant to alkali metal disruption. A composition in accordance with the invention comprises a mixture of (a) a binder phase having a viscosity of less than 10 Pascal seconds and a char yield in excess of 20% upon heating to a temperature of 800.degree.-1200.degree. C., and comprising at least one polymerizable resin and (b) particles of a solid material which is thermally stable at a temperature of 800.degree.-1200.degree. C., the particles having a granulometry wherein void spaces between the particles have a size of less than 20 .mu.m in diameter and the particles are coated with a layer of binder phase having a thickness of less than 2 .mu.m. When the composition is carbonized by heating to a temperature of 800.degree.-1200.degree. C., the composition forms a carbon-containing material resistant to alkali metal disruption.Type: GrantFiled: June 6, 1997Date of Patent: March 23, 1999Assignee: Comalco Aluminuim LimitedInventors: Raymond Walter Shaw, Drago Dragutin Juric, Gavan Joseph Stray
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Patent number: 5885696Abstract: A patterned fibrous web and a process for making the patterned fibrous web are disclosed. The patterned web includes a plurality of functional particle-loaded areas forming a pattern of functional particles. Beneficially, when cut, the patterned fibrous web does not release functional particles from the cut edges.Type: GrantFiled: June 15, 1998Date of Patent: March 23, 1999Assignee: AQF Technologies LLCInventor: H. Gunter Groeger
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Patent number: 5883180Abstract: A water borne, bakable paint composition having a reduced VOC formulated to contain a dispersion of at least one water compatible, film forming cross-linkable resin, a solvent and/or coalescent for the resin in the form of a block copolymer of a copolyetherpolyol and a cross-linking agent for the resin and the copolyetherpolyol in which the cross-linking agent is present in an amount sufficient to cross link the resin and the copolyetherpolyol whereby the latter becomes part of the film when the paint is baked.Type: GrantFiled: November 9, 1995Date of Patent: March 16, 1999Assignee: Finishes Unlimited, Inc.Inventor: Francis J. Slama
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Patent number: 5883020Abstract: A thermal and acoustical insulation product prepared from a mixture of fiberglass, scrap nylon of less than 0.25" in length and a thermo-setting resin. The insulation product is in a ductliner or molded form. The fiberglass will generally be in a concentration of from 20 to 80 percent by weight of the product; the nylon will be from 1 to 30 percent by weight of the product; and the thermo-setting resin will be from 5 to 35 percent by weight of the product.Type: GrantFiled: July 3, 1996Date of Patent: March 16, 1999Assignee: C.T.A. AcousticsInventors: Matthew Bargo, Edward Koperdak
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Patent number: 5882770Abstract: A fibrous sheet is provided with an outer surface having fibrous elements which are embossed with a pattern of fine grooves that are substantially aligned from fibrous element to fibrous element. The pattern of fine grooves is embossed directly on the surface of the fibrous sheet and produces rainbow and/or hologram images on exposure to light. In contrast, prior fabrics for producing rainbow or hologram images were laminated to plastic or metal foils having pre-embossed patterns of grooves. Sheets and fabrics of the present invention are free from such impermeable foils and retain desirable attributes of breathability and other aesthetic qualities.Type: GrantFiled: December 31, 1996Date of Patent: March 16, 1999Inventor: Munzer Makansi
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Patent number: 5883154Abstract: Disclosed is a process for inhibiting the formation of discoloration in an aqueous composition selected from the group consisting of water-based paint, adhesive, caulk and sealant compositions, and combinations thereof, wherein said discoloration is caused by the presence of ferric ion or cupric ion together with pyrithione in said composition. The process comprises contacting the composition with a discoloration-inhibiting amount of a zinc compound selected from the group consisting of zinc salts of organic acids, zinc salts of inorganic acids, zinc hydroxide, zinc oxide, and combinations thereof. Also disclosed is an aqueous antimicrobial composition protected against discoloration attributable to the presence of ferric ion or cupric ion therein.Type: GrantFiled: June 25, 1996Date of Patent: March 16, 1999Assignee: Olin CorporationInventors: Paul S. Kappock, Craig Waldron
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Patent number: 5883173Abstract: The present invention relates to a latex comprising water and a layered material intercalated with a polymer. The invention also relates to a nanocomposite material comprising a layered material intercalated with a polymer. The latex can be produced by forming a dispersion of layered material in water, adding surfactant, polymerizable monomer or monomers, and a polymerization initiator to the mixture and then polymerizing the monomer to form a latex. The latex can also be formed from preformed polymers. Composite materials formed from latexes produced by either method have improved mechanical properties and reduced air permeability.Type: GrantFiled: December 20, 1996Date of Patent: March 16, 1999Assignee: Exxon Research and Engineering CompanyInventors: Chester W. Elspass, Dennis G. Peiffer, Edward Nathan Kresge, Dong-Tsai Hsieh, James Joseph Chludzinski, Keng S. Liang
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Patent number: 5880176Abstract: A fluorescent marking composition containing particles of an organic material which has a glass transition temperature of at least 30.degree. C. and an average particle size of at least 30 nm, and emitting fluorescence in a visible light range, or absorbing infrared light having a wavelength of at least 700 nm and emitting a light in an infrared wavelength range, which composition is excellent in dispersion stability, light resistance, and heat and light resistance, and provides a mark which does not bleed.Type: GrantFiled: October 20, 1995Date of Patent: March 9, 1999Assignee: Hitachi Maxell, Ltd.Inventors: Takanori Kamoto, Yoshinori Yamamoto, Toshinobu Sueyoshi
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Patent number: 5880207Abstract: Acrylic compositions are provided which comprise a matrix of polymethyl methacrylate having dispersed within it particles comprising 75 to 90 weight percent of polymethyl methacrylate and greater than 10 to 25 weight percent of a comonomer comprising an ethylenically unsaturated monomer that copolymerizes with methyl methacrylate, wherein the particles further comprise more than 0.4 weight percent of a crosslinker.Type: GrantFiled: October 17, 1995Date of Patent: March 9, 1999Assignee: ICI Acrylics Inc.Inventors: Walter H. Delphin, Marcia O. Leach, James R. Leach, Fareeduddin Farooq, Connie D. Dickerson
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Patent number: 5881344Abstract: An electrophotographic image forming apparatus using a charge roller for uniformly charging the surface of a photoconductive element, or image carrier, during image formation, and a charging device having the charge roller. The charging efficiency is enhanced, and a uniform charge distribution is set up by the application of a DC voltage only. This suppresses the increase in the cost of an apparatus, the increase in power source cost, and the generation of a great amount of ozone. As a result, a charging member and a photoconductive element are prevented from being deteriorated while environmental pollution is eliminated.Type: GrantFiled: June 17, 1997Date of Patent: March 9, 1999Assignee: Ricoh Company, Ltd.Inventors: Junji Kurokawa, Kazuo Nojima, Masako Chiba, Toshio Nakahara
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Patent number: 5879791Abstract: A wet type sliding apparatus comprising a thrust bearing which operates in the presence of a lubricating liquid, wherein the thrust bearing has a sliding surface composed of a resin composition comprising a carbon fiber, a fluorocarbon polymer and a thermoplastic resin other than fluorocarbon polymer, the carbon fiber content being 10 to 45% by weight based on the weight of the composition and the fluorocarbon polymer content being 0.1 to 8.5% by weight based on the weight of the composition, the thrust bearing in said wet type sliding apparatus being excellent in wear resistance, mechanical strength and friction coefficient at the time of starting even under a high load.Type: GrantFiled: September 25, 1996Date of Patent: March 9, 1999Assignee: Daido Metal Company Ltd.Inventors: Eiji Kato, Shoji Yasunaga, Hidehiko Tamura, Tadashi Tanaka
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Patent number: 5880193Abstract: The preparation of pigment concentrates for the coloring of resin molding compositions in which the pigment is very finely dispersed is carried out successfully using, for the preparation of the pigment concentrates, a dispersant which contains the following components:from 0 to 90% by weight of a substantially amorphous poly-.alpha.-olefin,from 0 to 90% by weight of polyolefin wax,from 0 to 30% by weight of crystalline polyolefin, andfrom 1 to 50% by weight of a specific polyacrylic acid ester.Type: GrantFiled: April 25, 1996Date of Patent: March 9, 1999Assignee: HUELS AktiengesellschaftInventors: Fritz Berke, Volker Schrenk, Manfred Scheiba, Werner Schaefer, Guenter Hahn
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Patent number: 5879777Abstract: A papermaking fabric comprised of modular panels secured to one another by hook and loop tape fastener material or similar fastening means. The fabric can be repaired by removing therefrom a section encumbering the damage and securing in its place in overlapping relationship with the existing panels a replacement panel section which bonds to the existing fabric base by similar fastening type means. Alternatively, the fastening means may be used to join the ends of a fabric.Type: GrantFiled: June 19, 1997Date of Patent: March 9, 1999Assignee: Asten, Inc.Inventor: Gale Shipley
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Patent number: 5880214Abstract: An emulsion ink for stencil printing is disclosed which enlarges the selection region of a body to be printed on, improves the handling property and adds a building-up feeling and a brilliance to the printed letters and others by developing the drying property, sticking tendency and preservation stability of the ink. The emulsion ink for stencil printing is characterized by using an oil-in-water type resin emulsion as a water phase in the water-in-oil type emulsion ink consisting of an oil phase and a water phase, and it is further characterized in that the minimum film-making temperature for the oil-in-water type resin emulsion described above is 40.degree. C. or less and its compound ratio is 2-45 wt.% as a reduced solid basis of the total amount of the avaiable emulsion ink.Type: GrantFiled: September 26, 1997Date of Patent: March 9, 1999Assignee: Riso Kagaku CorporationInventor: Sadanao Okuda
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Patent number: 5877231Abstract: Powder coatings are described which are curable by means of exposure to radiation, typically ultraviolet radiation, in a form suitable for deposition onto substrates, typically by means of electrostatic deposition. It is expected that such powder coatings would be particularly useful in coating heat sensitive substrates since the necessity for heating the powder coating to elevated temperatures is not necessary to effect cure. Free radical curing coatings are described using specific chemical formulations of acrylourethane resins, unsaturated polyester resins and mixtures thereof in combination with morpholino containing photoinitiators, phenol containing photoinitiators, and ketal containing photoinitiators.Type: GrantFiled: April 12, 1996Date of Patent: March 2, 1999Assignee: Herberts Powder Coatings, Inc.Inventors: Kevin M. Biller, Ben A. MacFadden
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Patent number: 5876886Abstract: A light-receiving member, and an electrophotographic apparatus comprising it, which the member comprises a conductive support, a first layer capable of exhibiting a photoconductivity which comprises at least a material of a non-single-crystal silicon type, a second layer comprising silicon atoms and one kind selected from the group consisting of carbon atoms, nitrogen atoms and oxygen atoms, and a third layer comprising silicon atoms and one kind selected from the group consisting of carbon atoms, nitrogen atoms and oxygen atoms, the conductivity type of which has been adjusted to be of the same polarity as charging polarity by incorporating at least one element belonging to the Group III elements of the periodic table, the first, second and third layers being superposingly provided in this order, wherein the light-receiving member is used for positive charging and requires no drum heater, thereby achieving a very good image quality in any environment.Type: GrantFiled: December 19, 1995Date of Patent: March 2, 1999Assignee: Canon Kabushiki KaishaInventor: Junichiro Hashizume