Voids Specified As Closed Patents (Class 428/314.4)
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Patent number: 7059946Abstract: The present invention is directed, in general, to a chemical mechanical polishing pad comprising a polishing body and a backing material coupled to the polishing body. The polishing body comprising a compacted thermoplastic foam substrate, wherein the compacted thermoplastic foam substrate has a density that is as at least about 1.1 times greater than an uncompacted thermoplastic foam substrate density. Other aspects of the invention comprise a method for manufacturing the above-described chemical mechanical polishing pad and chemical mechanical polishing apparatus comprising the chemical mechanical polishing pad.Type: GrantFiled: April 20, 2005Date of Patent: June 13, 2006Assignee: PsiloQuest Inc.Inventors: Yaw S. Obeng, Peter A. Thomas, Patrick J. Kelly
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Patent number: 7048986Abstract: A sandwich panel includes a honeycomb core of a plurality of cells. A first skin is adhered to a first surface of the honeycomb core with an adhesive. A second skin is adhered to a second surface of the honeycomb core with the adhesive. The plurality of cells extend longitudinally between the first and second skins. The first and second skins adhere to the honeycomb core to form a sandwich panel having a surface area of at least 2.25 square feet. A foam fill is disposed within the cells of the honeycomb core. The foam fill and the honeycomb core define a first gap region proximate to the first skin and a second gap region proximate to the second skin.Type: GrantFiled: June 12, 2003Date of Patent: May 23, 2006Assignee: Northrop Grumman CorporationInventors: Chandrakant Himatlal Shah, Tod Palm, Timothy Alan Dyer, Carl A. Reis
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Patent number: 7041366Abstract: The invention provides porous silicon nitride ceramics that having uniform, fine closed pores and a manufacturing method thereof. Metal Si powder is mixed with a sintering additive, followed by thermal treatment, which is a pre-process for forming a specific grain boundary phase. Two-stage thermal treatment is thereafter performed by microwave heating at a temperature of 1000° C. or more. The metal Si powder is thereafter subjected to a nitriding reaction from its surface, the metal Si is thereafter diffused to nitride formed on the outer shell thereof such that porous silicon nitride ceramics having uniform, fine closed pores can be produced. Having a high ratio of closed pores and being superior in electrical/mechanical characteristics, the porous silicon nitride ceramics can display excellent characteristics if used, for example, for an electronic circuit board that requires an anti-hygroscopicity, a low dielectric constant, a low dielectric loss, and mechanical strength.Type: GrantFiled: March 22, 2002Date of Patent: May 9, 2006Assignee: Sumitomo Electric Industries, Ltd.Inventors: Michimasa Miyanaga, Osamu Komura
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Patent number: 6998172Abstract: A thermal barrier coating (TBC 26) and method for forming the TBC (26) on a component (10) characterized by a stabilized microstructure that resists grain growth, sintering and pore coarsening or coalescence during high temperature excursions. The TBC (26) contains elemental carbon and/or a carbon-containing gas that increase the amount of porosity (32) initially within the TBC (26) and form additional fine closed porosity (32) within the TBC (26) during subsequent exposures to high temperatures. A first method involves incorporating elemental carbon precipitates by evaporation into the TBC microstructure. A second method is to directly incorporate an insoluble gas, such as a carbon-containing gas, into an as-deposited TBC (26) and then partially sinter the TBC (26) to entrap the gas and produce fine stable porosity within the TBC (26).Type: GrantFiled: August 16, 2002Date of Patent: February 14, 2006Assignee: General Electric CompanyInventors: Boris A. Movchan, Yuriy E. Rudoy, Leonella M. Nerodenko, Ramgopal Darolia, Irene Spitsberg, Anthony Mark Thompson, Curtis Alan Johnson, David John Wortman
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Patent number: 6986941Abstract: The present invention relates to a sheet or board like multiple layers laminated polyolefin foam having a plurality of polyolefin layers laminated on at least one side of a polyolefin foam by a coextrusion method. More specifically, the present invention relates to said multiple layers laminated polyolefin foam, wherein the thickness of the outermost layer constituting the plurality of polyolefin layers is 5 to 80 ?m, and the density d (g/L) of the polyolefin foam, the melt flow rate X (g/10 min) of the polyolefin constituting the innermost layer among the plurality of polyolefin layers, and the thickness Y (?m) of the innermost layer of the multiple polyolefin layers satisfy the following relationships (1) to (4). Y?0.Type: GrantFiled: November 30, 2001Date of Patent: January 17, 2006Assignee: JSP CorporationInventors: Kazuhiko Morita, Takashi Muroi, Hirotoshi Kakuta
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Patent number: 6942913Abstract: A module for a modular conveyor belt, is described. The module is of a micocellular polymeric foam produced by an injection molding process. The foam polymeric material exhibits excellent mechanical properties required for modular conveyor belts capable of withstanding long service lives. Also, the reduced weight in comparison to conventionally molded modules helps decrease wear on the conveyor belt support structures including the drive sprockets.Type: GrantFiled: September 24, 2001Date of Patent: September 13, 2005Assignee: Habasit AGInventors: Luis Cediel, Sergio Fandella
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Patent number: 6936350Abstract: The present application relates to a white, biaxially oriented, flame-retardant, UV-resistant polyester film with at least one base layer which comprises, based on the weight of the base layer, from 2 to 60% by weight of a cycloolefin copolymer (COC), where the glass transition temperature of the COC is within the range from 70 to 270° C. The film also comprises from 0.01 to 5.0% by weight of a UV stabilizer as light stabilizer and also comprises from 0.5 to 30% by weight of flame retardant, based in each case on the weight of the layer comprising the UV stabilizer and/or comprising the flame retardant. The film of the invention is suitable for packing foods or other consumable items which are sensitive to light and/or to air, or for use in industry, e.g. in the production of hot-stamping foils or as a label film, or for image-recording papers, printed sheets or magnetic recording cards.Type: GrantFiled: February 12, 2001Date of Patent: August 30, 2005Assignee: Mitsubishi Polyester Film GmbHInventors: Ursula Murschall, Herbert Peiffer, Gottfried Hilkert, Hans Mahl
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Patent number: 6916529Abstract: An abradable coating composition for use on shrouds in gas turbine engines or other hot gas path metal components exposed to high temperatures containing an initial porous coating phase created by adding an amount of inorganic microspheres, preferably alumina-ceramic microballoons, to a base metal alloy containing high Al, Cr or Ti such as ?-NiAl or, alternatively, MCrAlY that serves to increase the brittle nature of the metal matrix, thereby increasing the abradability and oxidation resistance of the coating at elevated temperatures. Coatings having a total open and closed porosity of between 20% and 55% by volume due to the presence of ceramic microballoons ranging in size from about 10 microns to about 200 microns have been found to exhibit excellent abradability for applications involving turbine shroud coatings. An abradable coating thickness in the range of between 40 and 60 ml provides improved performance for turbine shrouds exposed to gas temperatures between 1380° F. and 1800° F.Type: GrantFiled: January 9, 2003Date of Patent: July 12, 2005Assignee: General Electric CompanyInventors: Surinder Singh Pabla, Farshad Ghasripoor, Yuk-Chiu Lau, Liang Jiang, Canan Uslu Hardwicke, William Emerson Martinez Zegarra
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Patent number: 6896954Abstract: An automobile trim has a trim body (a base layer) formed of a rubber composition and having a design surface, a decorating layer formed of a thermoplastic elastomer composition and thermally bonded integrally with the design surface of the trim body. A thermal bonding layer is formed of a thermoplastic resin composition and interposed between the decorating layer and the trim body so that the decorating layer is thermally bonded integrally with the trim body through the thermal bonding layer. The thermal bonding layer has a thickness to an extent not to prevent bending flexibility when the trim is attached to a vehicle body. In another example, a cushion layer is laminated on the trim body and formed of sponge rubber of EPDM, a decorating layer is laminated on the cushion layer and formed by foaming olefin thermoplastic elastomer, and an olefin bonding layer for bonding the cushion layer and the decorating layer.Type: GrantFiled: March 6, 2001Date of Patent: May 24, 2005Assignee: Toyoda Gosei Co., Ltd.Inventors: Hitoshi Omori, Masanori Aritake
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Patent number: 6890639Abstract: The present invention provides a method for depositing nano-porous low dielectric constant films by reacting a mixture comprising an oxidizable silicon component and an oxidizable component having thermally labile groups with an oxidizing gas in gas-phase plasma-enhanced reaction. The deposited silicon oxide based film is annealed to form dispersed microscopic voids that remain in a nano-porous silicon oxide based film having a low-density structure. The nano-porous silicon oxide based films are useful for forming layers between metal lines with or without liner or cap layers. The nano-porous silicon oxide based films may also be used as an intermetal dielectric layer for fabricating dual damascene structures.Type: GrantFiled: March 4, 2002Date of Patent: May 10, 2005Assignee: Applied Materials, Inc.Inventor: Robert P. Mandal
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Patent number: 6884517Abstract: The present invention relates to a high-whiteness, biaxially oriented polyester film with at least a base layer made from polyester. The base layer of the polyester film of the invention also comprises from 2 to 60% by weight of a cycloolefin copolymer (COC), from 0.1 to 25% by weight of a white pigment, and, if desired, from 0 to 5% by weight of an optical brightener, based on the weight of the base layer. The glass transition temperature of the COC here is to be within the range from 70 to 270° C. The film is particularly suitable for packing foods or other consumable items which are sensitive to light and/or to air, or for use in industry, e.g. for producing hot-stamping foils or as a label film, or for image-recording papers, printed sheets, or magnetic recording cards, or for processing on high-speed machinery for winding, metallizing, printing or laminating.Type: GrantFiled: February 23, 2001Date of Patent: April 26, 2005Assignee: Mitsubishi Polyester Film GmbHInventors: Herbert Peiffer, Gottfried Hilkert, Bart Janssens
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Patent number: 6866923Abstract: A rigid closed cell polyisocyanate-based foams is created by reacting at least one organic polyisocyanate with compounds having at least two active hydrogen atoms in the presence of an n-pentane blowing agent. When the foam is formed into a laminated board with facers, the foam formulation includes a sufficient amount of a common blend of cleaning solvent chemicals to cause a noticeable improvement in facer adhesion. The chemicals used to improve facer adhesion are a standard blend of industrial cleaning solvents called “Di-Basic Esters” or DBE. The actual chemical compounds in one mode of this mixture are the methyl esters of about 59% glutaric acid, about 20% succinic acid, and about 21% adipic acid. The minimum rate of addition of the Di-Basic Esters”[DBE] thought to be effective may be less than about 0.5 parts per hundred parts of polyol (pphpp). The currently preferred embodiments use add-on rates within the range of about 0.5 to about 5.Type: GrantFiled: November 15, 2001Date of Patent: March 15, 2005Assignee: Atlas Roofing CorporationInventors: James D. Thornsberry, Gregory Islas, Robert H. Blanpied
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Patent number: 6858291Abstract: To address the conflict between structural strength and flexibility in a conventional elastic belt for a papermaking calender, and to reduce manufacturing time, a belt in which the paper sheet-facing side of a base body side is covered by a high molecular weight elastic layer, is characterized in that the high molecular weight elastic layer is composed of a dense, first high molecular weight elastic layer and a second, high molecular weight elastic layer having a multitude of small voids of almost the same size. Flexibility of the layer having small voids is achieved while the dense surface layer is adapted to the ruggedness of the paper sheet.Type: GrantFiled: July 29, 2002Date of Patent: February 22, 2005Assignee: Ichikawa Co., Ltd.Inventors: Norio Sakuma, Yasuhiro Tsutsumi, Kazumasa Watanabe
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Patent number: 6852402Abstract: Film of dielectric material, which film contains gas bubbles preferably of a flat shape. To achieve improved electrical properties, the film is given a large internal unipolar charge, which is created by charging the film by means of an electric field intensive enough to produce partial discharges in the gas bubbles and to cause the charges to move into the dielectric material of the film.Type: GrantFiled: January 11, 2001Date of Patent: February 8, 2005Assignee: Emfitech OyInventors: Kari Kirjavainen, Keijo Korhonen, Jyrki Kroger, Lasse Raisanen
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Patent number: 6846606Abstract: A phosphor screen comprises an inorganic phosphor capable of absorbing X-rays and emitting electromagnetic radiation having a wavelength greater than 300 nm. The phosphor is disposed on a support that has a reflective substrate comprising a continuous poly(lactic acid) first phase and a second phase dispersed within the continuous poly(lactic acid) first phase. The second phase contains microvoids that in turn contain barium sulfate particles. This support provides improved reflectivity particularly at shorter wavelengths.Type: GrantFiled: November 21, 2003Date of Patent: January 25, 2005Assignee: Eastman Kodak CompanyInventors: Thomas M. Laney, Peter T. Aylward, David J. Steklenski
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Patent number: 6844055Abstract: Prepare a foam structure that includes hollow coalesced foam strands and, optionally, solid coalesced foam strands using an extrusion die block equipped with apertures that promote forming the hollow strands and, optionally, the solid foam strands.Type: GrantFiled: November 3, 2000Date of Patent: January 18, 2005Assignee: Dow Global Technologies Inc.Inventors: Vyacheslav D. Grinshpun, Michael E. Schaller, Martin H. Tusim, Andrew R. Brush, Jonathan D. Park
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Patent number: 6838147Abstract: A secondary backing for surface coverings is disclosed which comprises at least one thermoplastic material optionally having polymeric microspheres dispersed therein. A textile substrate comprising a primary backing with textile fibers extending upwardly from the backing and forming a surface and the above-described secondary backing attached thereto is also described. Methods of making the textile substrate and the secondary backing which can be foam or hardback are also described. Also described is a resilient surface covering, such as vinyl flooring, using the secondary backing of the present invention in one or more layers.Type: GrantFiled: January 12, 1999Date of Patent: January 4, 2005Assignee: Mannington Mills, Inc.Inventors: Alonzo M. Burns, Jr., Hao A. Chen, Nicholas Zerebecki, Charles Patterson
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Publication number: 20040224141Abstract: A composite plank (146) having a curved bottom surface (154) made by the method wherein a feed mixture of thermoplastic polymer material and glass fibers are provided to an extruder (10). The extruder compresses the feed mixture to form a thermoplastic/glass melt in the presence of a blowing agent. The melt is extruded through a die (26) to form a strand or extruded length (110) that is further shaped and cooled in an array of calibrators (112). A cutter (142) severs sections of the extruded length (110) to form planks (146).Type: ApplicationFiled: March 15, 2004Publication date: November 11, 2004Inventor: Kevin A. Seiling
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Patent number: 6815051Abstract: A foam layer can be formed at a temperature at which the surface quality of a surface layer is not deteriorated, and a molding technique that is excellent in adhesiveness of a foam layer and a surface layer or/and a base member is developed. For the purpose of obtaining a resin molding composite, the present invention is characterized by a polyolefin resin molding composite comprising a surface layer and a foam layer, or a surface layer, a foam layer, and a base member, wherein the foam layer comprises a foam layer produced by fusion bonding thermoplastic expanded resin particles one another by molding, where the thermoplastic expanded resin particles comprises a core that is made of a crystalline thermoplastic resin and is in an expanded state and a polyethylene resin coat covering the core, and the surface layer comprises a thermoplastic synthetic resin having a melting point of 5° C. or more higher than a melting point of polyethylene resin constituting the coat of the particles.Type: GrantFiled: April 20, 2001Date of Patent: November 9, 2004Assignee: JSP CorporationInventors: Masaaki Yokoyama, Masahiro Tanaka
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Publication number: 20040213984Abstract: A game ball is disclosed that includes a polymer foam layer processed with an inert fluid blowing agent, such as nitrogen. The polymer foam may be a polyolefin material, such as polyethylene, polypropylene, and ethylvinylacetate, and the inert fluid blowing agent may have a relatively high-purity. The polymer foam may be manufactured with a process that includes impregnating a polymer with the inert fluid blowing agent and expanding the polymer by heating the polymer above a softening temperature of the polymer, reducing a fluid pressure surrounding the polymer, and cooling the polymer. The game ball may be a soccerball, football, or volleyball, for example, that includes the polymer foam.Type: ApplicationFiled: April 23, 2003Publication date: October 28, 2004Applicant: NIKE, Inc.Inventor: Richard Avis
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Patent number: 6808800Abstract: A rigid polyurethane foam is described which is preferably, while not exclusively, used for manufacturing composite building elements used in buildings or for manufacturing industrial constructions. The foam has a structure consisting of closed cells substantially free therein of optionally halogenated hydrocarbon foaming agents, having an adhesion strength to a supporting substrate, measured according to standards EN 1607, equal to or higher than 0.7 kg/cm2. The polyurethane foam may be obtained starting from at least one polyol and at least one isocyanate compound by using a water-based foaming agent entirely compatible with the strictest environmental requirements, and has good mechanical characteristics, characteristics of dimensional stability, characteristics of adhesion to a supporting substrate and, possibly, characteristics of fire resistance.Type: GrantFiled: March 8, 2001Date of Patent: October 26, 2004Assignee: Sixton Holdings S.A.Inventor: Giampaolo Tomasi
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Patent number: 6808799Abstract: A thermal barrier coating, or TBC (26), and method for forming the TBC (26). The TBC (26) is formed of a thermal-insulating material that contains yttria-stabilized zirconia (YSZ) alloyed with at least a third oxide. The TBC (26) is formed to also contain elemental carbon, and may potentially contain carbides and/or a carbon-containing gas that forms from the thermal decomposition of carbon. The TBC (26) is characterized by lower density and thermal conductivity, high temperature stability and improved mechanical properties. To exhibit the desired effect, the third oxide is more particularly one that increases the lattice strain energy of the TBC microstructure as a result of having an ion size that is sufficiently different than a zirconium ion.Type: GrantFiled: August 16, 2002Date of Patent: October 26, 2004Assignee: General Electric CompanyInventors: Ramgopal Darolia, Boris A. Movchan, Yuriy E. Rudoy, Leonella M. Nerodenko, Irene Spitsberg, David John Wortman
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Publication number: 20040209067Abstract: The present invention relates to a perforated thermoplastic structure comprising at least a first layer (8) and a plurality of perforations, which extend through the first layer (8). The perforations have a three-dimensional, preferably approximately conical or cylindrical shape (18). A second layer forms an inner surface (20) of the shape (18), whereas the first layer forms an outer surface (21) of the shape (18). The first layer contains a thermoplastic material, whose melting point is lower than a melting point of the thermoplastic material of the second layer.Type: ApplicationFiled: June 9, 2004Publication date: October 21, 2004Inventors: Mathias Muth, Joachim Bauer, Henning Roettger
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Publication number: 20040202854Abstract: An anti-slip mat includes three layers, a top and a bottom layer of an expanded, closed cell elastomer and a center layer of a strong, non-stretching and waterproof fabric. The mat layers are held in place, one on top of another, by a fabric binding extending around the perimeter of the map and secured by stitching.Type: ApplicationFiled: April 9, 2003Publication date: October 14, 2004Inventor: John J. Esparza
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Patent number: 6803083Abstract: The invention presents a composite profile for use in the production of windows, doors, facade elements or the like, having inner and outer metallic profiles spaced at a specific distance from each other by a plastic profile. The invention further proposes that the plastic profile contain a surface of a solid, non-porous first plastics material, in a core region, a fine-pored cellular structure of a second plastics material. Additionally, the plastic profile may either be a solid, multilayer profile or a hollow profile. Such plastics profiles are particularly adapted to absorb tensile, bending and/or pressure loads.Type: GrantFiled: June 21, 2002Date of Patent: October 12, 2004Assignee: Ensinger Kunststofftechnologie GbRInventor: Wilfried Ensinger
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Patent number: 6800363Abstract: A biaxially oriented polyolefin multilayer film having a skin layer having oil-absorbing porous particles is disclosed. The film has substantially a small amount of porous particles on a weight basis of the total weight of the film and yet shows substantially no visible distortion after exposure to food products such as potato chips.Type: GrantFiled: August 29, 2002Date of Patent: October 5, 2004Assignee: Toray Plastics, Inc.Inventors: Tien-Kuei Su, Leo Moreau, Kevin Kitchin
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Publication number: 20040161595Abstract: Forms utilized in constructing concrete structures and expansion joints utilized in concrete structures are formed from closed cell polymeric foam. The forms and expansion joints may comprise a single layer or multiple layers joined by heat sealing or by means or a suitable adhesive. A reinforcing layer comprising mesh or sheet material may be positioned between the layers comprising the form or expansion joint.Type: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Inventor: John B. Baines
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Patent number: 6770350Abstract: The invention relates to an insulation element (4, 4′), at least one nonwoven layer (5) and/or a foam layer (11) being enclosed by a film layer (1), and, to achieve a solution which is adequately permeable to water vapour but nevertheless flame-retardant, proposes that the film layer (1) consists of a flame-retardant material which is preferably closed to vapour diffusion, that the film layer (1) also has through-openings (2) and that the through-openings (2) are open to vapour diffusion.Type: GrantFiled: February 5, 2002Date of Patent: August 3, 2004Assignee: Illbruck GmbHInventors: Rainer Arndt, Hans-Rudolf Czerny
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Patent number: 6770349Abstract: A sandwich structure does not permit the permeation of water and a sandwich structure repairing method is capable of easily repairing the sandwich structure. A sandwich structure (1) includes a core (4) formed of a closed-cell foam plastic material, and surface plates (2, 3) formed of a fiber-reinforced composite material containing hydrophobic inorganic fibers as reinforcing fibers and bonded to the opposite surfaces of the core (4). Water is unable to permeate the sandwich structure.Type: GrantFiled: August 8, 2003Date of Patent: August 3, 2004Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Toru Itoh, Shunichi Bandoh
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Patent number: 6759114Abstract: An extruded hollow thermoplastic board, which includes a pair of flat and parallel sheets spaced apart and interconnected by extending ribs, generally has a plurality of depression bands in the areas where the flat sheets and extending ribs are joined. The bands, which negatively affect the surface flatness, are especially apparent for crystalline thermoplastic materials. A hollow thermoplastic board, which effectively reduces the depth of the depression bands by inclusion of locationally fixed gas pockets in the rib area during production, is disclosed in the present invention. The hollow thermoplastic board of the present invention substantially enhances the surface smoothness and is highly beneficial to applications such as printing, lamination and graphic art. The present invention also provides a method for production of the hollow thermoplastic boards of smooth surfaces.Type: GrantFiled: October 27, 2001Date of Patent: July 6, 2004Assignee: Inteplast Group, LTDInventors: Phillip C. L. Wu, Yao Cheng, Haur Horng Yang, Jyh-yao Raphael Li
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Publication number: 20040126564Abstract: A rigid closed cell polyisocyanate-based foams is created by reacting at least one organic polyisocyanate with compounds having at least two active hydrogen atoms in the presence of an n-pentane blowing agent. When the foam is formed into a laminated board with facers, the foam formulation includes a sufficient amount of a common blend of cleaning solvent chemicals to cause a noticeable improvement in facer adhesion. The chemicals used to improve facer adhesion are a standard blend of industrial cleaning solvents called “Di-Basic Esters” or DBE. The actual chemical compounds in one mode of this mixture are the methyl esters of about 59% glutaric acid, about 20% succinic acid, and about 21% adipic acid. The minimum rate of addition of the Di-Basic Esters” [DBE] thought to be effective may be less than about 0.5 parts per hundred parts of polyol (pphpp). The currently preferred embodiments use add-on rates within the range of about 0.5 to about 5.Type: ApplicationFiled: July 9, 2003Publication date: July 1, 2004Applicant: Atlas Roofing CorporationInventors: James Thornsberry, Gregory Islas, Robert H. Blanpied
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Publication number: 20040109993Abstract: High-strength, chemically and thermally stable, closed-cell foams, useful as structural core materials in sandwich composites. The core materials of the invention display anisotropic properties. The core materials of the invention are amenable to vacuum-mediated resin bonding to composite skins to provide lightweight, high-strength structural sandwiches suitable for use in a variety of applications, such as marine applications, construction, aviation, rapid transit, and recreational vehicles.Type: ApplicationFiled: December 2, 2003Publication date: June 10, 2004Inventors: Wenguang Ma, Kurt Feichtinger
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Publication number: 20040109994Abstract: High-strength, chemically and thermally stable, closed-cell foams, useful as structural core materials in sandwich composites. The core materials of the invention display anisotropic properties. The core materials of the invention are amenable to vacuum-mediated resin bonding to composite skins to provide lightweight, high-strength structural sandwiches suitable for use in a variety of applications, such as marine applications, construction, aviation, rapid transit, and recreational vehicles.Type: ApplicationFiled: December 2, 2003Publication date: June 10, 2004Inventors: Wenguang Ma, Kurt Feichtinger
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Patent number: 6746774Abstract: In order to provide leather with the desired cushioning properties and desirable soft handling properties, especially a grained leather with a grain structure on its upper surface, or a split leather with a surface finish, even if this leather is of minimal thickness, a foam layer is created on the non-visible underside surface of the leather. This foam layer is formed by applying a liquid plastic material containing means to create the foam and is subsequent solidified by removal of the solvent.Type: GrantFiled: September 5, 2000Date of Patent: June 8, 2004Inventor: Philipp Schaefer
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Patent number: 6740399Abstract: A multi-layered article for establishing a seal between two substrates. The multi-layered article includes a bulk layer and an adhesive layer. The layers of the article are generally epoxy-containing, photo-activated materials. Upon photo activation, the bulk layer and the adhesive layer have different curing rates. The article is suitable for adhering and sealing two substrates together. The article is particularly useful when at least one of the substrates is glass.Type: GrantFiled: November 15, 2000Date of Patent: May 25, 2004Assignee: 3M Innovative Properties CompanyInventors: Clayton A. George, Michael A. Johnson
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Publication number: 20040096646Abstract: The invention relates to a lightweight wheel housing part of plastic for reduction of the transmission of rolling noises, spray water noises and stone impact noises into the vehicle interior and for protection from corrosion, the plastic being foamed or expanded plastic. Furthermore, the invention relates to the use of thermoplastic plastic, duroplastic plastic, elastomer or mixtures thereof for the production of lightweight wheel housing parts.Type: ApplicationFiled: December 23, 2003Publication date: May 20, 2004Inventors: Uwe Behrendt, Dirk Trapp
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Patent number: 6736939Abstract: In a shoe press belt, in which the nip zone is narrower than the shoe width, the shearing force which normally acts on the belt at the outer boundary of the nip zone is made either weak or non-existent by forming the outer portions of the belt of less hardness than the inner, or central, portion of the belt, so that the less hard portions can be positioned directly opposite the outer boundaries of the nip zone. Alternatively, the outer portions of the belt can be made thinner than the central portion of the belt and the thinner portions positioned directly opposite to the nip zone boundaries. The shearing force applied to the belt at the nip ends of the roll is reduced or eliminated, cracking resulting from the shear force is reduced or avoided, and a belt having improved durability results.Type: GrantFiled: July 29, 2002Date of Patent: May 18, 2004Assignee: Ichikawa Co., Ltd.Inventor: Kazumasa Watanabe
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Patent number: 6716520Abstract: A reflective insulating material (1) with sufficient structural integrity to form and maintain a configuration of air ducts (9, 13), boxes and other structures having outer layers of reflective foil (2, 8), multiple inner layers of foam material (4, 6) and a mesh material (5) sandwiched between the layers of foam material, all adhered together by adhesive and heat. The material can be configured end to end and secured by tape (11, 18) to form air ducts (9, 13) or other structures. An optional hook lock (15, 16) is provided to help secure ends when forming substantially circular air ducts (13).Type: GrantFiled: July 3, 2001Date of Patent: April 6, 2004Inventor: Elmer L. Cook, II
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Patent number: 6709729Abstract: The invention is concerned with a three-dimensional protective pad which is constructed from a laminate structure having a first top layer of a neoprene/nylon skin combination which is stretchable in all directions. There is a second layer of a non-stretchable neoprene adhered under the first layer. Then there is a third layer of a polyurethane foam of a viscoelastic nature adhered under the second layer. Finally, there is a fourth layer of a neoprene/nylon skin combination which is stretchable in all directions adhered under the third layer. This laminated material is now structured into a three-dimensional shape. Therefore, prior to laminating all of the layers, the second and the third layers are adhered to each other first and then a sectional cut is made through layers, the cut surfaces are then closed by cross stitching through the second layer into the third layer and the cut edges are now glued together.Type: GrantFiled: November 23, 2001Date of Patent: March 23, 2004Inventor: Alan Baruch
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Publication number: 20040053036Abstract: It comprises three layers: a first layer of plastic material that provides the whole with mechanical strength, a second intermediate layer of foam forming a union between the first and second layer, and a third layer of impermeable plastic material and is characterised in that the first layer (2) is mase on an elastomeric polyolefin of high strength and elasticity, in that the second layer (3) is of closed-cell, physically or chemically cross-linked polyethylene foam, and in that the third layer (4) is of polyolefin with high tear resistance. A light waterproofing sheet is obtained which withstands extreme meteorological conditions, is resistant to chemical agents, while it also has optimum mechanical properties at a lower thickness thanks to the material of which the first layer is comprised and unlike other sheets existing it has no ageing limit, which measn that once the sheets have been fitted they do not have to be replaced.Type: ApplicationFiled: June 26, 2003Publication date: March 18, 2004Inventor: Fernando Gordun Burillo
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Patent number: 6706383Abstract: The present invention provides, polishing pad with improved polishing properties and longevity. The pad is comprised of a thermoplastic foam substrate having a surface comprised of concave cells. A polishing agent coats an interior surface of the concave cells. The invention includes a method for preparing the polishing pad, and a polishing apparatus comprising the polishing pad.Type: GrantFiled: September 11, 2002Date of Patent: March 16, 2004Assignee: PsiloQuest, Inc.Inventors: Yaw S. Obeng, Peter A. Thomas
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Patent number: 6699629Abstract: The present invention relates to a method for placing process survivable indicia on a support for an imaging element comprising providing a support wherein the support comprises a closed cell foam core and adhered thereto at least one flange layer, wherein the closed cell foam core layer comprises a polymer that has been expanded through the use of a blowing agent, and placing process survivable ink on at least one flange layer, wherein the process survivable ink forms process survivable indicia. The invention also relates to a method for placing process survivable indicia on a support comprising a closed cell foam core and adhered thereto an upper flange layer and a lower flange layer. The invention also includes a method for placing process survivable indicia on a support by placing process survivable indicia on said closed cell foam core.Type: GrantFiled: December 23, 2002Date of Patent: March 2, 2004Assignee: Eastman Kodak CompanyInventors: Margaret J. Helber, Peter T. Aylward, Mridula Nair
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Patent number: 6696145Abstract: The invention provides gel-coated materials that provide enhanced flame-, physical- and chemical-resistance to the foamed materials. The gel coatings can be created with a sol-gel process. Such treated materials can be used, for example, in the manufacture of articles of clothing that are to be used in environments in which fire and exposure to acids, bases or other chemicals which tend to corrode foamed materials is a potential hazard.Type: GrantFiled: January 26, 2001Date of Patent: February 24, 2004Assignee: Frisby Technologies, Inc.Inventor: Mark E. Holman
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Patent number: 6677040Abstract: The invention relates to expanded polypropylene beads having a density of from 5 to 200 g/l and a bead diameter of from 1 to 10 mm which comprise from 0.002 to 20% by weight of graphite particles.Type: GrantFiled: June 14, 2001Date of Patent: January 13, 2004Assignee: BASF AktiengesellschaftInventors: Frank Braun, Guiscard Glück, Klaus Hahn, Isidoor De Grave, Hermann Tatzel
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Publication number: 20030228458Abstract: A method of manufacturing a layer of material adapted for use as carpet underlay (though not restricted thereto), from a sheet having two opposed surfaces with one surface being intended to contact the carpet when used for that purpose. The method involves partly perforating the sheet by inserting, through one said surface, an array of needles, thus providing passageways for the escape of air from the cells when the layer is compressively loaded, and for the return of air to the cells when the load is removed.Type: ApplicationFiled: June 11, 2002Publication date: December 11, 2003Inventor: Mario Lorini
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Patent number: 6630221Abstract: An article of manufacture comprising an expandable sag-resistant nucleus-forming monolithic composite capable of being located within a hollow interior portion of a structural material and being expanded therein. Also, articles of manufacture comprising open-cellular structural material containing within the open-cell or cell thereof, at least one expandable sag-resistant nucleus-forming monolithic composite. The composite is desirably in the shape of a plug that is similar or close to similar to the shape of the hollow interior. In addition, there is described a process that comprises forming a pre-shaped expandable sag-resistant nucleus-forming. monolithic composite for use in reinforcing and stiffening a normally open-cellular structural material.Type: GrantFiled: July 21, 2000Date of Patent: October 7, 2003Assignee: Dexter CorporationInventor: Raymon S. Wong
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Methods of forming polymeric structures using carbon dioxide and polymeric structures formed thereby
Publication number: 20030180522Abstract: Methods of forming a polymeric structure having a plurality of cells therein that include contacting a polymeric material that includes a first phase and a second phase with a composition comprising carbon dioxide to form the polymeric structure having a plurality of cells therein are described. Polymeric materials and microelectronic devices formed by such methods are also described.Type: ApplicationFiled: March 28, 2002Publication date: September 25, 2003Inventors: Joseph M. DeSimone, Sara Naomi Paisner -
Patent number: 6623847Abstract: A method for making a resilient cushion includes providing a particulate polymer, discrete pieces of foam and a plasticizer. The polymer, foam pieces and plasticizer are mixed and disposed in a mold. The mold is heated to cause melting of the polymer without melting of the foam. After coating of the melted polymer, a heterogeneous resilient cushion is formed with gelated polymer surrounding the discrete foam pieces.Type: GrantFiled: September 24, 1999Date of Patent: September 23, 2003Inventor: Paul M. Yates
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Patent number: 6617001Abstract: A floatable flat textile structure with embedded, air-filled floating bodies is disclosed. To provide a flat structure that has a high buoyancy, resists damage and can be manufactured cost-effectively, the floating bodies are formed as air-filled ropes made of an air-filled foil, wherein the air-filled ropes are connected by connecting elements.Type: GrantFiled: October 16, 2000Date of Patent: September 9, 2003Assignee: Manfred Huck GmbH & Co.Inventor: Rolf Arnold
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Patent number: 6616814Abstract: The invention refers to a shoe press belt (1) for use in shoe presses of a paper machine, having a support (2) and a liquid-impermeable belt layer (3, 5) which has an inner layer (3) and an outer layer (5), the outer layer (5) having a porous structure and the porous structure being formed exclusively from cavities (8, 12, 14) open toward the outer side; and is characterized in that the outer layer (5) is made of an unfoamed material.Type: GrantFiled: June 1, 2001Date of Patent: September 9, 2003Assignee: Thomas Josef Heimbach Gesellschaft mit beschrankter Haftung & Co.Inventor: Walter Best