Coating Or Lining Patents (Class 264/338)
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Publication number: 20090148660Abstract: An intumescent strip for fire protecting cellular beams is disclosed. The intumescent strips of the present invention are made from flexible intumescent compositions and retain their flexibility after being molded into a solid. The strips are often generally U-shaped to fit over the edge of an opening in a cellular beam. The intumescent strip may be adhered to the beam with an adhesive and the entire beam including the strips may be covered with a thin film intumescent coating.Type: ApplicationFiled: February 19, 2008Publication date: June 11, 2009Applicant: PPG INDUSTRIES OHIO, INC.Inventors: Mark I. Cooper, Ian G. Stewart, Erik M. W. van Schaijk, Neil A. Wheat
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Publication number: 20090139960Abstract: A method of fabricating an apparatus of fabricating a flat panel display device and method of fabricating flat panel display device is disclosed, which enables simplification of process by performing a patterning process without a photo process, the method for fabricating an apparatus of fabricating flat panel display device comprising, preparing a master mold including a thin film pattern, coating a liquid-type molding material including oligomer on the master mold, forming a soft mold including a groove provided with a pattern in a shape corresponding to the thin film pattern of the master mold and adhering the soft mold to a mold support plate, wherein the soft mold is adhered to the mold support plate by a covalent bonding in the interface between the oligomer and the mold support plate.Type: ApplicationFiled: December 4, 2007Publication date: June 4, 2009Inventors: Jin Wuk Kim, Mi Kyung Park
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Patent number: 7517487Abstract: The invention relates to mold-release agents, in particular mold-release agents which can be used for demolding moldings from molding tools, and also to the use of these mold-release agents. The mold-release agents of the invention, which are preferably based on suspensions of nanostructured microparticles, have the advantage of being markedly more environmentally compatible than the known mold-release agents based on organic or organosilicon compounds, since they can remain on the surfaces of the moldings. The use of the mold-release agents of the invention is very simple, since advantage can be taken of existing equipment. An example of a usual method is to produce injection moldings by means of injection molds into which the material is injected. The mold-release agent of the invention is applied, e.g. by spray-application, to the injection mold prior to the actual injection-molding process.Type: GrantFiled: February 3, 2003Date of Patent: April 14, 2009Assignee: Degussa AGInventors: Edwin Nun, Markus Oles
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Patent number: 7510390Abstract: Machinable composite molds for use in making a composite structure. The mold includes a mold body having a tool surface that is shaped to provide the molded surface of the composite structure. The mold body is made up of at least one mold layer composed of a quasi-isotropic material composed of a plurality of randomly oriented fiber bundles or chips impregnated with a resin. The use of randomly oriented fiber chips allows post-cure machining of the mold body.Type: GrantFiled: July 13, 2005Date of Patent: March 31, 2009Assignee: Hexcel CorporationInventor: Richard A. Callis
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Patent number: 7498172Abstract: A hybrid bio actuator and a manufacturing method thereof using a 3-dimensional micro molding aligning apparatus are provided. The manufacturing method has the steps of: 3-dimensionally forming an actuator body with polymer using the micro molding aligning apparatus; and transplanting and cultivating the muscular cell onto the actuator body. The step of forming the actuator body comprise: preparing the upper and lower half molds corresponding to an outer contour of the actuator; installing, on the mold plate unit, the upper and lower half molds opposite to each other and placing a mass of polymer above the lower half mold; aligning the lower half mold with the upper half mold using the aligner unit; pressing the mold plate unit using the clamp unit; solidifying the polymer; and removing the solidified polymer, thereby providing the hybrid bio actuator made of a biomaterial compatible with the human body and capable of operating without a separate battery or external energy source.Type: GrantFiled: December 19, 2007Date of Patent: March 3, 2009Assignee: Korea Institute of Science and TechnologyInventors: Suk-ho Park, Jin-seok Kim, Jung-yul Park, Duk-moon Rho, Byung-kyu Kim
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Publication number: 20090020917Abstract: The invention provides solvent-free release agents for producing polyurethane moldings, substantially including: A) at least one wax having release activity; B) at least one oil having release activity; and C) if desired, further auxiliaries and adjuvants, with the proviso that the release agent contains no water and no volatile organic solvent, and the oil with release activity is substantially free from unsaturated hydrocarbons,Type: ApplicationFiled: May 21, 2008Publication date: January 22, 2009Applicant: EVONIK GOLDSCHMIDT GMBHInventor: Torsten Henning
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Patent number: 7478791Abstract: The present invention relates to methods of making a flexible mold from a polymerizable resin composition, the flexible mold, the polymerizable resin composition, as well as methods of using the flexible mold.Type: GrantFiled: April 15, 2005Date of Patent: January 20, 2009Assignee: 3M Innovative Properties CompanyInventors: Yorinobu Takamatsu, Akira Yoda
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Publication number: 20080315459Abstract: An article is provided that includes a mold comprising a pattern, a metal-containing layer in contact with the pattern, and a release agent that includes a functionalized perfluoropolyether bonded to the metal-containing layer. Also provided is a method of replication that includes the mold.Type: ApplicationFiled: June 21, 2007Publication date: December 25, 2008Inventors: Jun-Ying Zhang, Mark J. Pellerite, Suresh Iyer, Thomas P. Klun
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Publication number: 20080258343Abstract: A rotary powder compression molding equipment arranged to compression molding powder filled in the mortar hole of a mortar fixed to a rotary disc between the lower end face of an upper pestle and the upper end face of a lower pestle, wherein a means for injecting powder lubricant comprises an injection nozzle having a concave surface and injecting powder lubricant L being guided to the concave surface substantially in one direction while facing the end faces of the upper and lower pestles at respective supply positions of powder lubricant, an air flow supply mechanism for injecting air flow to the vicinity of the lower end face of the upper pestle in order to prevent upward scattering of the powder lubricant injected from the injection nozzle, and a charger for charging the powder lubricant when it is injected from the injection nozzle.Type: ApplicationFiled: May 18, 2004Publication date: October 23, 2008Applicant: KIKUSUI SEISAKUSHO LTD.Inventors: Yutaka Tado, Takayuki Tsukada, Shinya Kako, Yoshitsugu Oneda, Makoto Kubota, Tomohiro Kakitani
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Patent number: 7435593Abstract: A hybrid bio actuator and a manufacturing method thereof using a 3-dimensional micro molding aligning apparatus are provided. The manufacturing method has the steps of: 3-dimensionally forming an actuator body with polymer using the micro molding aligning apparatus; and transplanting and cultivating the muscular cell onto the actuator body. The step of forming the actuator body comprise: preparing the upper and lower half molds corresponding to an outer contour of the actuator; installing, on the mold plate unit, the upper and lower half molds opposite to each other and placing a mass of polymer above the lower half mold; aligning the lower half mold with the upper half mold using the aligner unit; pressing the mold plate unit using the clamp unit; solidifying the polymer; and removing the solidified polymer, thereby providing the hybrid bio actuator made of a biomaterial compatible with the human body and capable of operating without a separate battery or external energy source.Type: GrantFiled: August 30, 2006Date of Patent: October 14, 2008Assignee: Korea Institute of Science and TechnologyInventors: Suk-ho Park, Jin-seok Kim, Jung-yul Park, Duk-moon Rho, Byung-kyu Kim
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Patent number: 7402270Abstract: According to one embodiment of the invention, a mold tool for packaging integrated circuits includes a first mold press die including a first non-planar surface and a second mold press die including a second non-planar surface. The first and second non-planar surfaces form the upper and lower surfaces of a mold cavity when the first and second mold press die are engaged. The mold tool also includes a bright TiN coating disposed on the first non-planar surface. The bright TiN coating operates to decrease residue on the first non-planar surface from a mold compound.Type: GrantFiled: June 1, 2005Date of Patent: July 22, 2008Assignee: Texas Instruments IncorporatedInventor: Humberto Quezada Mercado
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Patent number: 7364682Abstract: A cannula and method of forming a cannula by forming a cannula mandrel assembly having a nare mandrel, a main body mandrel and mouthpiece mandrel; heating the cannula mandrel assembly, applying a polymeric material to the cannula mandrel assembly to provide a desired material thickness on the mandrel assembly to form the cannula, curing the polymeric material of the formed cannula and extracting the mandrel assembly from the cannula by disassembly and removal of the mandrel assembly parts.Type: GrantFiled: December 5, 2003Date of Patent: April 29, 2008Assignee: Salter LabsInventors: James N. Curti, Peter W. Salter
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Publication number: 20080088051Abstract: A method for producing a paint-ready polyurethane molded article is disclosed. The article is produced by rotationally molding a reactive polyurethane in a mold to which has been applied a mold release composition which comprises a volatile siloxane solvent; a combination of a polysilsesquioxane polymer or copolymer and a functionally-terminated polydimethylsiloxane; and optionally a catalyst, a co-solvent, or both. There is further provided a process to produce a painted polyurethane molded article wherein the molded article is free of mold release composition without cleaning.Type: ApplicationFiled: October 16, 2007Publication date: April 17, 2008Inventor: Robert Harvey Moffett
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Publication number: 20080054509Abstract: A composition that includes a mold release agent selected from one of a wax, a water-based agent, a solvent-based agent, and a semi-permanent agent and a marker material selected from one of a luminescent material, UV material, fluorescent material or dye. The composition is useful in mold preparation and maintenance activities to show the user those areas, if any, where the release agent has not been applied to the mold surface or has been inadequately applied.Type: ApplicationFiled: August 31, 2006Publication date: March 6, 2008Inventors: Ronald M. Berman, Miles F. Gathright
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Publication number: 20080036106Abstract: In a method for forming concrete structures a form having at least one elongate body has an L-shaped strip attached along the lower edge of the elongate body. The L-shaped strip has an inside corner radius. Concrete is then poured into the form and against the inside corner radius of the L-shaped strip. After the concrete has set, the form and L-shaped strip are removed from the concrete, which is partially cured, to provide a concrete body having a curved edge that corresponds to the L-shaped strip. Thereafter, the curved edge is finished with a hand tool to provide a smooth drip edge. Once the finishing is completed, the concrete is allowed to fully cure.Type: ApplicationFiled: August 8, 2006Publication date: February 14, 2008Inventor: Randall L. Warnick
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Patent number: 7329378Abstract: There is described a molding method for molding a product, having a microscopic structure of high aspect ratio. The molding method includes the steps of: setting a temperature of a mold, having a microscopic shape, at a value higher than a glass transition temperature of a material being deformable with heat; pushing the mold against the material at a first velocity, after the material is positioned opposite to the mold so that the microscopic shape contacts the material; pushing the mold against the material at a second velocity being faster than the first velocity; and releasing the mold from the material. The pushing pressure for pushing the mold against the material at the first velocity is equal to or smaller than a half of that for pushing the mold against the material at the second velocity.Type: GrantFiled: March 23, 2005Date of Patent: February 12, 2008Assignee: Konica Minolta Holdings, Inc.Inventors: Hiroshi Miyakoshi, Kazumi Furuta, Masahiro Morikawa, Osamu Masuda, Makiko Imae
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Patent number: 7323251Abstract: The present invention provides a decorative sheet having a base film made of a thermoplastic polyester resin and a decorative layer on the base film, and provides a decorated resin molding produced by using the decorative sheet. The base film is not broken in both of MD (a flow direction of film-forming) and TD (a direction perpendicular to MD) and has a stress of 20 N/cm2 or less in any of MD and TD under a 200% elongation at 80° C. The decorated resin molding includes a resin molding and the decorative sheet which is unitedly laminated to the resin molding. The decorative layer of the decorative sheet faces toward the resin molding. The decorative sheet is suitable for producing the decorated resin molding by a decorating injection molding method.Type: GrantFiled: November 25, 2004Date of Patent: January 29, 2008Assignee: Dai Nippon Printing Co., Ltd.Inventor: Nobuo Saitou
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Publication number: 20080011934Abstract: A method of making an imprint lithography template includes applying a curable material to a patterned surface of a master imprint template, allowing the curable material to cure and thereby forming a second imprint template having a patterned surface which is the inverse of the patterned surface of the master imprint template; removing the second imprint template from the master imprint template; applying inorganic sol-gel to a substrate; imprinting the inorganic sol-gel with the second imprint template; allowing the inorganic sol-gel to cure; and removing the second imprint template from the cured inorganic sol-gel, such that the inorganic sol-gel forms a third imprint template having a patterned surface which corresponds with the patterned surface of the master imprint template.Type: ApplicationFiled: June 30, 2006Publication date: January 17, 2008Applicants: ASML Netherlands B.V., Koninklijke Philips Electronics N.V.Inventors: Marcus Antonius Verschuuren, Sander Frederik Wuister
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Patent number: 7311867Abstract: A method for fabricating a pool mold comprising the steps of creating a recess, the recess having the general shape and contour of the desired finished pool and is installed with support materials and surface references. A layer of forming material is place over the support materials and surface references and formed to desired contour and grade. The forming material has substantially uniform coefficients of thermal expansion and heat transfer. The surface of the recess is sealed and coated with a release agent. A mold is then fabricated within the recess.Type: GrantFiled: May 13, 2005Date of Patent: December 25, 2007Assignee: The RTR Group, Inc.Inventors: Raymond J. Cronise, IV, Theodore F. Baudendistal, Richard E. Black, Jr.
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Patent number: 7306757Abstract: Methods and apparatus for producing cast articles with characteristics of original objects such as a stone panel. The cast articles can replicate the contours, textures, and colors of all or a portion of the original object and can be made in any shape or size and specifically can be formed to simulate rock walls, carved stone architecture details, and other construction components normally created by stone masons or sculptors on site and at a high cost. The processes used in making the cast articles include the production of a series of molds. The molds seek to replicate the size, shape, contour, and surface texture of an original object with or without modifications to the original object.Type: GrantFiled: June 12, 2003Date of Patent: December 11, 2007Assignee: PolyRock Technologies, LLCInventor: Bruce E. Harrington
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Publication number: 20070278711Abstract: A method and apparatus that permits the shrinking of recycled multilayered plastic film by means of two molds which have been treated with a release agent and one of the molds being transparent or translucent that are flat or nearly flat that permits viewing of the sandwiched recycled shrinking plastic film. Also the remolding of a shrunken recycled multilayered plastic film by means of a mold. The recycled shrunk or remolded shrunk plastic film can be used as, but not limited to, ornamental or decorative or fastening. This invention can be fastened to different surfaces or materials.Type: ApplicationFiled: June 3, 2006Publication date: December 6, 2007Inventor: Emmanuel Levi
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Patent number: 7294294Abstract: A method of performing imprint lithography of a surface substrate includes a stamper having a thin lubricant coating thereon to facilitate release of the stamper from the imprinted surface to reduce degradation of image replication. Embodiments of the invention include stampers suitable for use in patterning servo information on magnetic recording media having a lubricant coating of from about 1 nm to about 20 nm.Type: GrantFiled: October 9, 2001Date of Patent: November 13, 2007Assignee: Seagate Technology LLCInventors: Koichi Wago, Gennady Gauzner
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Publication number: 20070260477Abstract: A method of supplying a made-to-order flood source includes, in response to receiving an order for a flood source from a customer, selecting a mold from a plurality of molds to meet a size of the flood source ordered. A radionuclide is dispersed in a heat curable matrix material to form a mixture. The mixture is cured in the selected mold by application of heat. The cured mixture may be thereafter removed from the mold and encapsulated to form the flood source. The method allows the finished flood source to be shipped to the customer within twenty-four hours of receiving the order.Type: ApplicationFiled: May 4, 2007Publication date: November 8, 2007Inventor: Keith C. Allberg
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Publication number: 20070235890Abstract: Molds that have coated mold surfaces, as well as methods and components associated with such molds, are provided. The mold surface coatings may be formed of a polymeric material, such as polytetrafluoroethylene (PTFE), and may be very thin (e.g., 50 microns or less). The coatings may facilitate the release of articles formed in the mold and may also reduce, or eliminate, the build up of contaminants on mold surfaces during processing which, thus, increases mold lifetime. The coatings may be formed in a chemical vapor deposition process with process conditions selected to enable formation of uniform, conformal coatings, even on mold features having small dimensions and/or high aspect ratios. The coatings are particularly well suited to be used in connection with rubber tires molds, though also can be used in other types of molds and articles.Type: ApplicationFiled: April 5, 2006Publication date: October 11, 2007Inventors: Hilton G. Pryce Lewis, Aleksandr J. White, Michael E. Stazinski
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Patent number: 7238310Abstract: The invention relates to the use of gelation moulds made from hydrophobicized glass tubes for the production of monolithic mouldings as sorbents for chromatography.Type: GrantFiled: May 23, 2001Date of Patent: July 3, 2007Assignee: Merck Patent GmbHInventors: Dieter Lubda, Karin Cabrera
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Patent number: 7160494Abstract: A method for facilitating the fabrication of a hard cover for an article is provided. The method includes positioning shrinkable material over at least a portion of the article and shrinking the shrinkable material to form a fitted cover for the portion of the article. A layer of molding material is applied overlying the fitted cover to form a hard cover for the portion of the article. A method for facilitating fabrication of a first article from a second article is also provide. The method includes positioning shrinkable material over at least a portion of the second article and shrinking the shrinkable material to form a fitted cover for the portion of the second article. A first layer of molding material is applied overlying the fitted cover to form a mold. The mold has a surface which is a negative impression of at least a portion of the fitted cover. The mold is removed from the fitted cover and a second layer of molding material is applied overlying the surface of the mold to form the first article.Type: GrantFiled: February 27, 2004Date of Patent: January 9, 2007Inventor: Karl R. Meyer
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Patent number: 7150844Abstract: A method of manufacturing a stamper/imprinter for use in patterning of a recording medium comprises sequential steps of: (a) providing a substrate/workpiece comprising a topographically patterned surface including a plurality of projections and depressions corresponding to a pattern to be formed in a surface of the recording medium; (b) forming a thin release layer in conformal contact with the topographically patterned surface by means of a dry process; (c) forming a thicker layer of a material in conformal contact with the thin passivation layer on the topographically patterned surface; and (d) separating the thicker layer of material from the topographically patterned surface to form therefrom a stamper/imprinter including an imprinting surface having a negative image replica of the topographically patterned surface, separation of the thicker layer of material from the topographically patterned surface being facilitated by the thin release layer formed by the dry process.Type: GrantFiled: October 16, 2003Date of Patent: December 19, 2006Assignee: Seagate Technology LLCInventors: Neil N. Deeman, Hong Ying Wang, Gennady Gauzner, Nobuo Kurataka
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Patent number: 7087132Abstract: A decoratively embossed panel of a molded form includes an exterior design that preferably reflects some aspect of the services advertisement. For example, a bricklayer may choose an embossed panel having a three-dimensional brick design in addition to a logo, service and/or trademark and other pertinent information to aid potential customers in understanding the services provided in conjunction with the servicemark and contact information. The embossed panel is removably attachable to any portion of a vehicle by any attaching mechanism such as double stick foam tape.Type: GrantFiled: July 12, 2002Date of Patent: August 8, 2006Assignee: R&B Products, Inc.Inventor: Richard Krey, Jr.
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Patent number: 7084204Abstract: A composition for a damp hand donnable glove using a novel coating. The novel coating results in the formation of domains of variable size and height. The coating has a polyurethane polymer, an aqueous wax dispersion and a surfactant.Type: GrantFiled: July 31, 2001Date of Patent: August 1, 2006Assignee: Ansell Healthcare Products LLCInventors: Jeffery G. Nile, Stanley J. Gromelski, Paul Cacioli, Richard L. Cox, E. Anthony Yu
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Patent number: 7077992Abstract: The present invention is directed to methods for patterning a substrate by imprint lithography. Imprint lithography is a process in which a liquid is dispensed onto a substrate. A template is brought into contact with the liquid and the liquid is cured. The cured liquid includes an imprint of any patterns formed in the template. In one embodiment, the imprint process is designed to imprint only a portion of the substrate. The remainder of the substrate is imprinted by moving the template to a different portion of the template and repeating the imprint lithography process.Type: GrantFiled: July 11, 2002Date of Patent: July 18, 2006Assignee: Molecular Imprints, Inc.Inventors: Sidlgata V. Sreenivasan, Byung J. Choi, Norman E. Schumaker, Ronald D. Voisin, Michael P. C. Watts, Mario J. Meissl
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Patent number: 7060217Abstract: A shaped composite article is prepared by a process wherein an aesthetic laminate having a clear outer arylate layer and a colored compatible resin layer is thermoformed into a desired shape, and then compression molded together with a reinforced resin material containing compatible resin to form a color composite of the desired shape having an outer layer of clear arylate polyester polymer with the compatible resin layer forming an adherent bond with the compatible resin in the resin reinforced material.Type: GrantFiled: March 24, 2004Date of Patent: June 13, 2006Assignee: General Electric CompanyInventors: Thomas Paul Dunton, Craig Lawrence Milne, Randall Todd Myers, Venkatkrishna Raghavendran
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Patent number: 7033422Abstract: Three novel types of release agents comprising waste products of several useful product-making processes well known in the art are disclosed. The first type of release agent is comprised of desugared sugar beet molasses, which is a waste product in the process of removing sugar from sugar beet molasses. The second type of release agent is sugar cane molasses. The third type of agent is a class of compositions comprising steepwater, brewers condensed solubles and distillers solubles.Type: GrantFiled: September 11, 2003Date of Patent: April 25, 2006Assignee: Grain Processing CorporationInventor: Todd A. Bloomer
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Patent number: 7018576Abstract: A resin part of a vehicular lamp and a method for producing such a part in which a metallic vapor deposition coating for forming a reflective surface is formed directly on a surface of a resin body part without applying an undercoating layer. The body of the resin part is produced by injecting molten resin into a cavity of a molding die in which a heat insulating layer is formed on a portion of the cavity surface corresponding to the reflective surface. A metallic vapor deposition coating is applied directly to the portions of the body of the resin part which were in contact with the heat insulating layer during injection molding.Type: GrantFiled: July 17, 2002Date of Patent: March 28, 2006Assignee: Koito Manufacturing Co., Ltd.Inventors: Mamoru Kosuge, Makoto Sano, Masaru Takiguchi
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Patent number: 7018461Abstract: The invention provides release agents and methods for preparing textiles and molded articles there from. Lignocellulosic materials, concrete and polyurethane foam can be molded with these release agents. The release agents comprise the salt of tall oil fatty acids, preferably of very high purity. A synthetic wax and/or silicone resin is used with the tall oil fatty acids in preferred embodiments. The tall oil fatty acids contain less than 10 wt % , based on the total weight of the tall oil fatty acid, of unsaponifiables and less than 1 wt %, based on the total weight of the tall oil fatty acid, of rosin acid.Type: GrantFiled: December 18, 2002Date of Patent: March 28, 2006Assignee: Cellulose Solutions, LLCInventors: Joseph F. Massidda, Alan P. Short
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Patent number: 6998085Abstract: A process for the production by a moulding process of a micro-cellular or non-cellular elastomeric polyurethane skin layer or, more generally, to a process for the production of a composite comprising a first layer shaped part, which is made by a moulding process from a polyurethane reaction mixture, and a second layer shaped part which is adhered to the first part to form the composite. In order to avoid the use of release agents on the back side of the first layer shaped part, and thus the negative effect on the adhesion of the second layer shaped part, and the penetration of reaction mixture on this back side between the slides (9–10) of the mould, the mould surface (4) is covered on the back side of the moulding with a removable flexible covering (12), with a removable rigid pre-shaped covering or with a permanent non-stick coating layer.Type: GrantFiled: July 31, 2001Date of Patent: February 14, 2006Assignee: RecticelInventors: Hugo De Winter, Yvan Vanluchene Yvan
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Patent number: 6984353Abstract: A method for manufacturing a polyimide sleeve where a polyimide sleeve of a high quality can be manufactured easily with a superior yield. A sleeve of a release resin is fitted on a planished metal core or a core at least whose outer surface is made of a release resin, and a polyimide precursor solution is applied on its outer surface. Next, after generating an imide reaction of the polyimide precursor by heating to form an almost completely cured polyimide sleeve, this polyimide sleeve is removed from the core together with the sleeve of the release resin. Furthermore, the polyimide sleeve is separated from the sleeve of the release resin.Type: GrantFiled: June 3, 2002Date of Patent: January 10, 2006Assignee: Showa Electric Wire & Cable Co., Ltd.Inventors: Toshinobu Asai, Masaaki Oya, Takayuki Yamazaki
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Patent number: 6932934Abstract: The present invention is directed to methods for patterning a substrate by imprint lithography. An imprint lithography method includes placing a curable liquid on a substrate. A template may be contacted with the curable liquid. Surface forces at the interface of the curable liquid and the template cause the curable liquid to gather in an area defined by a lower surface of the template. Alternately, the curable liquid may fill one or more relatively shallow recesses in the template and the area under the template lower surface. Activating light is applied to the curable liquid to form a patterned layer on the substrate.Type: GrantFiled: July 11, 2002Date of Patent: August 23, 2005Assignee: Molecular Imprints, Inc.Inventors: Byung Jin Choi, Mario J. Meissl, Sidlagata V. Sreenivasan, Michael P. C. Watts
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Patent number: 6908577Abstract: A process for manufacturing a capital for an architectural column. The inside of a mold for an architectural column is lightly coated with a mold release. A first opening of the mold is placed upon a surface, and a plug is positioned on the surface within the first opening. Through another opening foam is poured around the plug. After the foam has hardened, the mold is removed from the surface. All other openings in the mold are securely covered. Then an elastomer is introduced into the mold, and the mold is rotated about multiple different axes. The introduction of the elastomer is repeated after the prior coating created by the introduced elastomer has become tacky but before the prior coating has become firm. After the final coating of elastomer has become tacky but not firm, foam is introduced into the mold.Type: GrantFiled: June 29, 2001Date of Patent: June 21, 2005Inventor: Barney J. Auman
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Patent number: 6887420Abstract: The invention provides non-stick coated molds, a process for the preparation thereof and their use for the production of plastics molded parts, particularly for the production of molded parts made of polyurethane foam.Type: GrantFiled: October 22, 2002Date of Patent: May 3, 2005Assignee: GE Bayer Silicones GmbH & Co. KGInventors: Gerhard Heilig, Thomas Gross, Helmut Steinberger
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Patent number: 6881370Abstract: A method for facilitating the fabrication of a hard cover for an article is provided. The method includes positioning shrinkable material over at least a portion of the article and shrinking the shrinkable material to form a fitted cover for the portion of the article. A layer of molding material is applied overlying the fitted cover to form a hard cover for the portion of the article. A method for facilitating fabrication of a first article from a second article is also provide. The method includes positioning shrinkable material over at least a portion of the second article and shrinking the shrinkable material to form a fitted cover for the portion of the second article. A first layer of molding material is applied overlying the fitted cover to form a mold. The mold has a surface which is a negative impression of at least a portion of the fitted cover. The mold is removed from the fitted cover and a second layer of molding material is applied overlying the surface of the mold to form the first article.Type: GrantFiled: March 5, 2002Date of Patent: April 19, 2005Inventor: Karl R. Meyer
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Patent number: 6875553Abstract: A method for casting a thick layer of photoresist material onto a substrate. The method including the steps of pressing the photoresist against the substrate material using a presser plate and limiting the travel of the presser plate by using spaces which can be positioned on the substrate material. The process further including the step of holding the presser plate in a pressed position while the photoresist is at least partially cured or solidified.Type: GrantFiled: December 18, 2002Date of Patent: April 5, 2005Assignee: Xerox CorporationInventors: Jurgen H. Daniel, Alexandra Rodkin
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Patent number: 6866708Abstract: A release agent composition for molding a polyurethane foam is disclosed. The agent is obtained by blending a cationic surfactant having an amino acid salt of alkyl amine, a predetermined substance having release characteristic and a film forming agent. Furthermore, it is preferable that a polyethylene glycol type non-ionic surfactant with an additional number of ethylene oxide in the range from 1 to 15 moles, preferably, in the range from 5 to 10 moles is used in combination.Type: GrantFiled: February 20, 2003Date of Patent: March 15, 2005Assignee: Chyukyo Yushi Co., Ltd.Inventors: Masateru Chikazawa, Haruyuki Mizuno
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Patent number: 6863850Abstract: A method of manufacturing a foamed plastic article includes disposing a release film on a mold surface of a mold cavity. At least a portion of a bushing is inserted through the release film to form an aperture in the release film. The bushing defines an inlet for foamable material. The mold cavity is then sealed. The foamable material is then injected into the mold cavity through the inlet, wherein the foamable material is conformed to the shape of the mold cavity.Type: GrantFiled: October 16, 2002Date of Patent: March 8, 2005Assignee: Lear CorporationInventors: Bari William Brown, George Bernard Byma
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Patent number: 6852266Abstract: A method and apparatus for ultrasonic assisted deposition of a release agent onto a workpiece is disclosed. The release agent can be any fluorinated or non-fluorinated phosphorous-containing organic acid. The workpiece can be any workpiece desired to be coated with the release agent, such as a surface needing an anti-stick coating required in a plastic casting or injection mold. Metal oxide workpiece surfaces strongly bond to fluorinated phosphorus-containing organic acids. In particular, the present invention can deposit anti-stick coatings onto smooth or porous surfaces, such as anodized aluminum and its alloys, using ultrasonic assisted deposition.Type: GrantFiled: August 14, 2001Date of Patent: February 8, 2005Assignee: Korry Electronics Co.Inventors: Timothy R. Robinson, Leonard Y. Nelson
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Patent number: 6841115Abstract: Mold release agents useful for the production of plastic molded parts having reduced concentration of undesirable, potentially health hazardous substances in the edge zone and on the surface of the molded part and a process for the production of low toxicity plastic molded parts using such mold release agents. These mold release agents have at least one group which is reactive with the undesirable materials that form on the surfaces and in the edge zones of the molded parts.Type: GrantFiled: November 22, 2002Date of Patent: January 11, 2005Assignee: Bayer AktiengesellschaftInventors: Christian Six, Michael Schneider
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Publication number: 20040256764Abstract: The present invention provides a method to reduce adhesion between a conformable region on a substrate and a pattern of a mold, which selectively comes into contact with the conformable region. The method features forming a conformable material on the substrate and contacting the conformable material with the surface. A conditioned layer is formed from the conformable material. The conditioned layer has first and second sub-portions, with the first sub-portion being solidified and the second sub-portion having a first affinity for the surface and a second affinity for the first sub-portion. The first affinity is greater than the second affinity. In this fashion, upon separation of the mold from the conditioned layer, a subset of the second sub-portion maintains contact with the mold, thereby reducing the probability that a pattern formed in the conditioned layer becomes compromised. These and other embodiments are described herein.Type: ApplicationFiled: June 17, 2003Publication date: December 23, 2004Applicants: University of Texas System Board of Regents, MOLECULAR IMPRINTS, INC.Inventors: Byung Jin Choi, Frank Y. Xu, Nicholas A. Stacy, Van Nguyen Truskett, Michael P.C. Watts
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Patent number: 6833095Abstract: Slabstock foam free of cavities can be produced without any restriction, i.e. also from rapidly reacting chemical systems, by introducing the liquid reaction mixture from underneath, in front of, and/or through an optionally swivellable floor plate, wherein the floor plate and the inlet for introducing the liquid reaction mixture is arranged in a manner such that the reaction mixture above the floor plate is substantially still liquid.Type: GrantFiled: November 5, 2001Date of Patent: December 21, 2004Assignee: Hennecke GmbHInventors: Hans-Michael Sulzbach, Lothar Röhrig, Reiner Raffel
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Method of making a stretch/blow molded article (bottle) with an integral projection such as a handle
Publication number: 20040245678Abstract: The method involves making a hollow blow molded thermoplastic article having an integral handle. An unblown preform of polyethylene terephthalate (PET) is inserted into a blow mold and thereafter stretched by a stretch rod. Blow gas is then injected into the interior of the preform when the blow mold is closed and the preform is at a stretch temperature. After the preform is blown into the shape of the bottle in the mold, blow gas is discharged from the stretch rod onto an interior wall surface where the handle is to be formed. Heated movable mold segments are then advanced within the blow mold from a first retracted position to a second position thereby compressing an interior wall surface of the article into contact with a facing interior wall surface of the bottle to bond the surfaces at an elevated temperature and form an integral handle extending from the exterior wall of the blow molded article.Type: ApplicationFiled: May 10, 2004Publication date: December 9, 2004Inventor: Samuel L. Belcher -
Publication number: 20040244903Abstract: A method of making a composite part including an insert and an elastomer layer that is bonded to the insert. The insert is placed in a mold and an uncured elastomer is sprayed into the mold to form a composite part. The inherent adhesive properties of the uncured elastomer is the sole mechanism for bonding the elastomer to the insert.Type: ApplicationFiled: June 3, 2003Publication date: December 9, 2004Applicant: Lear CorporationInventors: Kenneth R. Parrish, Jean-Jacques Katz, Gordon L. Ebbitt, Barry R. Wyerman
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Patent number: 6827888Abstract: An annular die designed to produce polymer foam using only one or more ambient gasses as a blowing agent includes an exiting channel with an exit having a cross-sectional area between about two and about ten times that of a smallest point within the exit channel. The section of the die from the smallest point to the exit is thermally isolated from the rest of the die, and the temperature thereof is independently controlled. In addition, the interior surface of the exit channel is coated with a friction-reducing coating.Type: GrantFiled: January 23, 2001Date of Patent: December 7, 2004Assignee: Genpak LLCInventor: Walter R. Harfmann