Parting Layer Patents (Class 249/115)
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Patent number: 8128858Abstract: A method for forming a nano/microstructure includes applying a release coating having a transition temperature to a mold, the release coating promoting adhesion thereto at temperatures below the transition temperature and release at temperatures above the transition temperature. A cast material is adhered to the release coating at a first temperature below the transition temperature and released from the mold by exposing the release coating to a second temperature greater than the transition temperature.Type: GrantFiled: March 19, 2010Date of Patent: March 6, 2012Assignee: The Charles Stark Draper Laboratory, Inc.Inventor: Ricky K. Soong
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Publication number: 20110220773Abstract: A method for the manufacture of prefabricated reinforced mortar panels and slabs, particularly one in which metal molds are used that have resistant means to withstand the stressing of biaxial reinforcement members. According to the method, a mold (3) is provided that is formed by two parallel central walls (2, 5), forming the major faces of the panel, two sidewalls (9), which connect the sides of the central walls (2, 5) and form the lateral edges of the panel, and two end walls which connect the end edges of the central (2, 5) and sidewalls (9), and form the end edges of the panel. A stressed reinforcement member (7, 8) is provided biaxially between the sidewalls (9) and the end walls. Finally, mortar is introduced through an operable space provided in one of the central walls (2, 5), side walls (9) and/or end walls.Type: ApplicationFiled: October 28, 2008Publication date: September 15, 2011Inventor: Carlos Fradera Pellicer
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Patent number: 7997889Abstract: A hard mold and method of preparing the mold is disclosed. The hard mold is designed for manufacturing articles having various shapes and patterns. The shaping mold includes a layer of hardened material provided over the entire surface of the selected master. The inventor has found that a polyurea coating or other polyurethane hybrid is preferred. Once the layer of hardened material has dried, the surface of the hardened material is sanded with a 20-40 grit sandpaper and a layer of polyester resin is then applied to the layer of hardened material. Once the polyester resin is applied, multiple layers of vinyl ester are applied to the polyester resin to prevent the polyester resin from shrinking. In the preferred embodiment, the application includes at least three (3) layers of vinyl ester.Type: GrantFiled: May 29, 2007Date of Patent: August 16, 2011Inventor: Richie Johnson
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Publication number: 20110186712Abstract: The present disclosure features processes and equipment for forming a variety of textured materials, including both release webs, and finished products such as flooring materials, wall coverings, textured laminates and the like. The processes described herein allow curing radiation to be passed through a texturing medium, rather than through the substrate to which the curable material is applied.Type: ApplicationFiled: April 14, 2011Publication date: August 4, 2011Applicant: S.D. Warren CompanyInventors: Gary P. Blenkhorn, Dieter Doehring
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Patent number: 7988889Abstract: An exemplary method for making a mold used for molding lenses includes the following. First, a base is provided. The base has parallel lines marked on a surface thereof. Second, a dispenser is provided. The dispenser dispenses lumps of molding material on selected positions on the surface of the base guided by the lines. Third, a roller is provided. The roller has a peripheral side surface. The peripheral side surface has spaced molding surfaces defined thereat, each molding surface corresponding to a surface of a lens to be formed. The roller is applied above the base, with the molding surfaces press-molding the lumps of molding material, thereby forming molding portions on the base. Thus, a mold including the base and the molding portions formed on the base is obtained.Type: GrantFiled: April 16, 2009Date of Patent: August 2, 2011Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Han-Lung Lee
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Publication number: 20110133053Abstract: A surface treatment method includes covering a surface of a casting mold with a carbon film containing at least one type of nanocarbon selected from the group of carbon nanocoils, carbon nanotubes and carbon nanofilaments, and further applying fullerenes to that surface. With this surface treatment method being performed on a surface (a cavity surface, etc. of a casting mold) making contact with a molten casting material such as aluminum, etc., sticking of the molten casting material to the mold is inhibited, release resistance of the product is reduced, and release effectiveness is improved. The release effectiveness lasts longer than in the case of a conventional carbon film.Type: ApplicationFiled: July 30, 2009Publication date: June 9, 2011Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEC INTERNATIONAL CO., LTD.Inventors: Yuichi Furukawa, Fumio Kawahara, Hidenori Matsuoka, Hitoshi Kabasawa
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Patent number: 7931249Abstract: A process of reducing friction, which is encountered in molds utilized in injection molded, solder processing, and wherein glass mold plates have mold pits etched therein. The mold pates are subjected to a heat treatment so as to smooth or round-off sharp edges along the periphery of the mold pits.Type: GrantFiled: February 1, 2007Date of Patent: April 26, 2011Assignee: International Business Machines CorporationInventor: Mark D. Schultz
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Patent number: 7922146Abstract: A method of forming an optical element forming metal mold to form an optical element, having steps of: laminating a heat insulation layer 13 on a surface of the base member 11 where the optical element is formed; laminating an intermediate metal layer 14 on a surface of the heat insulation layer 13 by thermal spraying; laminating a surface forming layer 15, on which a surface shape to be transferred to the optical element is formed, on the intermediate metal layer 14; wherein the intermediate metal layer 14 is laminated in a way that parts of the heat insulation layer 13 are exposed substantially evenly from the intermediate layer 14.Type: GrantFiled: March 26, 2008Date of Patent: April 12, 2011Assignee: Konica Minolta Opto, Inc.Inventors: Masayoshi Uehira, Yuzo Nakatsuka
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Patent number: 7891636Abstract: A silicone mold comprising and oxidized, patterned surface and a layer of perfluoroether silane release agent is described. The mold enables 2nd generation silicone molds to be replicated, i.e. silicone molds from silicone molds.Type: GrantFiled: August 27, 2007Date of Patent: February 22, 2011Assignee: 3M Innovative Properties CompanyInventors: Jun-Ying Zhang, Mark J. Pellerite
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Publication number: 20110031375Abstract: A laminated baking mold material includes a food contact layer and an exterior layer. The food contact layer serves as a functional layer, and may include an aluminum foil. The exterior layer may include a paper layer, and may be printed. The laminated baking mold may be formed into self-supporting baking molds or pan-supported baking liners. The functional barrier prevents migration of ink from an exterior surface of the baking mold or liner into a baked product or the permeation of grease or moisture from the baked product to the exterior layer preventing a degradation of a printing thereon and allowing for deep, opaque, and vibrant colors and patterns.Type: ApplicationFiled: August 4, 2009Publication date: February 10, 2011Applicant: Reynolds Foil Inc., d/b/a Reynolds Consumer Products CompanyInventor: G. Douglas Powell
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Patent number: 7874831Abstract: An imprint lithography template including, inter alia, a body having a first thickness associated therewith; a patterning layer, having a second thickness associated therewith, comprising a plurality of features, having a third thickness associated therewith.Type: GrantFiled: October 26, 2009Date of Patent: January 25, 2011Assignee: Molecular Imprints, Inc.Inventors: Douglas J. Resnick, Mario Johannes Meissl, Kosta S. Selinidis, Frank Y. Xu
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Publication number: 20100301191Abstract: The mold has a mold surface on which is formed as a release film a water-repellent and oil-repellent fluorocarbon-based chemisorbed film having a thickness that is uniform in nanoscale and having a controlled surface energy. As a result, even when a mold has an ultrafine shape on the nanometer scale, the mold allows high precision molding excellent in fluidity and penetrativity of a molding material. In addition, this mold eliminates the application of a release agent and can prevent a release agent from adhering to a molded article.Type: ApplicationFiled: February 18, 2008Publication date: December 2, 2010Inventor: Kazufumi Ogawa
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Patent number: 7819376Abstract: A method for forming interconnects onto attachment points of a wafer includes the steps of providing a mold with a plurality of cavities having a predetermined shape, depositing a release agent on surfaces of the cavities, filling the cavities with an interconnect material to form the interconnects, removing the release agent from the mold, and attaching the interconnects to the attachment points of the wafer. An adhesive layer can optionally be deposited in addition to the release layer. The adhesive layer can be used, for example, to bond the chip to a package.Type: GrantFiled: October 31, 2007Date of Patent: October 26, 2010Assignee: International Business Machines CorporationInventors: David H. Danovitch, Mukta G. Farooq, Peter A. Gruber, John U. Knickerbocker, George R. Proto, Da-Yuan Shih
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Patent number: 7819653Abstract: Provided is a light transmissive stamper which does not generate a residue of a curable resin even when the stamper including a support substrate and an inorganic resist is used to mold a substrate. The light transmissive stamper is used when an information pattern of an optical recording medium is formed using a curable resin. The light transmissive stamper includes a light transmissive support substrate, a light transmissive inorganic resist layer having an uneven pattern corresponding to an information pattern formed therein, and a peeling layer provided on a side surface of the light transmissive stamper and having a higher peelability from the curable resin than a peelability from the light transmissive support substrate.Type: GrantFiled: May 2, 2008Date of Patent: October 26, 2010Assignee: Canon Kabushiki KaishaInventor: Ryuichi Yokoyama
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Patent number: 7807090Abstract: The invention relates to a mold for making a composite material part, the mold being coated in a stripping composition. The stripping composition comprises: 100 parts by weight of a base ingredient consisting in epoxy polydimethylsiloxane; 0.5 to 10 parts by weight of a polymerization agent for polymerizing the base ingredient and constituted by a diaryliodonium salt; not more than 30 parts by weight of an anti-adhesion modulator constituted by a silicone polymer; and not more than 40 parts by weight of an anti-stick agent making the composition less tacky prior to polymerization and constituted by at least one vinyl ether compound.Type: GrantFiled: October 29, 2003Date of Patent: October 5, 2010Assignee: EurocopterInventors: Patrick Boschet, Emmanuel Piel
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Publication number: 20100237225Abstract: A method for forming a mold comprises forming a body by kneading a ceramic powder comprising a silicon nitride powder and a first binder solution; forming a slurry by adding a second binder solution to the body; and forming a release layer by attaching the slurry to a surface of a mold base. A method for manufacturing a solar cell element comprises forming a silicon ingot by solidifying a silicon melt in the mold obtained by the above-described method for forming a mold; slicing the silicon ingot into substrates each having a predetermined thickness; forming a diffusion layer on each of the substrates; and forming an electrode on a surface of the diffusion layer.Type: ApplicationFiled: January 27, 2010Publication date: September 23, 2010Applicant: Kyocera CorporationInventors: Shigeru Gotoh, Youhei Sakai, Kentaro Okushima
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Publication number: 20100237224Abstract: The invention concerns a metal, iron-containing permanent mold, in particular a permanent mold made of steel, which can be subjected to a liquid or flowable aluminum material, and in which a coating for protecting the permanent mold and for achieving an optimal casting result can be produced using a mold release agent. The invention additionally concerns a mold release agent for producing such a coating, and a method for producing such a coating.Type: ApplicationFiled: September 7, 2006Publication date: September 23, 2010Applicant: KS ALUMINIUM-TECHNOLOGIE AGInventor: Manfred Laudenklos
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Patent number: 7784764Abstract: A low-adhesion material containing a rare-earth element is formed as a layer or a film on a mold surface of a mold for molding a resin. A main component of the low-adhesion material is a rare-earth compound, and Y2O3 is used as an example. A content of the rare-earth compound in the low-adhesion material is not less than 40 percent by volume. Thereby, a mold for molding a resin having excellent releasability can be obtained.Type: GrantFiled: November 1, 2005Date of Patent: August 31, 2010Assignees: Towa Corporation, Japan Fine Ceramics CenterInventors: Takaki Kuno, Yoshinori Noguchi, Keiji Maeda, Seiichi Suda, Satoshi Kitaoka, Naoki Kawashima, Masato Yoshiya
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Publication number: 20100170654Abstract: Casting molds suitable for directional solidification processes using a liquid cooling bath include a graded facecoat structure on a mold body. The graded facecoat structure includes an innermost layer and a delamination layer, wherein the delamination layer fractures upon cooling of the molten metal so as to separate the mold body from the innermost layer, which remains in contact with or in close proximity to the metal being cast. Also disclosed are directional solidification processes.Type: ApplicationFiled: January 6, 2009Publication date: July 8, 2010Applicant: General Electric CompanyInventors: Shyh-Chin Huang, Andrew John Elliott, Michael Francis Xavier Gigliotti, JR., Roger John Petterson, Stephen Francis Rutkowski
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Patent number: 7717693Abstract: The invention relates to a novel metal mold having anti-adhesive properties comprising a base metal mold and an anti-adhesive layer comprising a fluorinated alkyl phosphoric acid derivative or a fluorinated alkyl poly-phosphoric acid derivative, including a phosphorous atom and an alkyl chain. The anti-adhesive layer is bonded directly onto a surface of the base metal mold. The base metal mold may be e.g. Nickel, and said fluorinated alkyl phosphoric acid derivative or said fluorinated alkyl poly-phosphoric acid derivative may be selected from the group consisting of phosphonic acids, phosphonic acids, phosphonates and phosphonate salts, phosphonates and phosphonate salts, or their respective oligomers, such that the phosphorous atom is coupled directly to the alkyl chain, such that the phosphorous atom is coupled directly to the alkyl chain.Type: GrantFiled: May 27, 2005Date of Patent: May 18, 2010Assignee: Obducat ABInventors: Matthias Keil, Göran Frennesson, Marc Beck, Babak Heidari
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Patent number: 7713053Abstract: The present invention is directed generally to templates used in the creation of thin-film replicas, for example, the creation of thin films, such as carbon films, for use as specimen support in electron-beam specimen analysis. More specifically, the present invention is directed to novel reusable patterned templates, the methodology of making these reusable templates, the templates made from such methodologies, the use and reuse of these templates to make thin films of any type for any purpose, and the thin films made from these templates. A feature of the novel template of the present invention is in its employment of one or more zones of discontinuity, or undercuts, associated with the patterns transferred into the template to allow for the removal of the thin film from the template without sacrificing the structural integrity of the template to prevent at least one re-use of the template.Type: GrantFiled: June 10, 2005Date of Patent: May 11, 2010Assignee: Protochips, Inc.Inventors: Stephen E Mick, John Damiano, Jr., David P. Nackashi
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Patent number: 7687007Abstract: Method for manufacturing a mold tool (1), devised for forming a structured nanoscale pattern on an object (24) and having a layer (16) which is anti-adhesive with regard to the object (24). A stamp blank (2) is provided with a structured pattern (4) on a surface (8). The patterned surface (8) is coated with a layer (6) of a metal, which has a stable oxidation number and can form a mechanically stable oxide film. The metal layer (6) is oxidized for forming of an oxide film (10). The oxide film (10) is exposed to a reagent comprising molecule chains (18), each of which has a linkage group (20) which bonds to the oxide film (10) by chemical bonding, wherein the molecule chains (18) either at the outset comprise at least a group (22) comprising fluorine, or in a subsequent step is provided with at least one such group (22).Type: GrantFiled: June 16, 2003Date of Patent: March 30, 2010Assignee: Obducat ABInventors: Torbjörn Ling, Lars Montelius, Matthias Keil, Marc Beck
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Publication number: 20090302192Abstract: 1. Release agent spray device for a casting machine. 2.1. The invention relates to a release agent spray device for a casting machine, having one or more spray nozzles (1) and discharge means for the controlled discharge of release agent from the respective spray nozzle. 2.2. According to the invention, the discharge means comprise at least one dosing unit (3) which is assigned to at least one spray nozzle (1) and which defines, in advance, a release agent quantity to be discharged by the at least one associated spray nozzle in an impending spray burst and which provides said release agent quantity, separated from a release agent supply, for discharge in the impending spray burst. 2.3. Use for example for metal pressure-die-casting machines.Type: ApplicationFiled: December 1, 2008Publication date: December 10, 2009Applicant: Oskar Frech GmbH & Co., KGInventors: Norbert Erhard, Hubert Pschenitschni
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Patent number: 7628604Abstract: A system and method for molding the shell of a medical device or other molded article is disclosed. The system includes a multi-axis rotational molding machine in which a mold is mounted. The mold has a cavity in the shape of the article to be molded. The mold seals to hold a vacuum. In operation, silicone or other molding material is inserted into the mold, vacuum is applied to the mold, the mold is rotated about at least two axes and a molding material coats the inside walls of the mold to form the shell or other desired article. A rotationally molded medical article is also disclosed.Type: GrantFiled: March 31, 2008Date of Patent: December 8, 2009Assignee: Allergan, Inc.Inventor: David J. Schuessler
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Publication number: 20090272875Abstract: An imprint lithography mold assembly includes a mold having a surface, a substrate having a surface, and a polymerizable composition disposed between the surface of the mold and the surface of the substrate. The polymerizable composition includes a bulk material and a non-ionic surfactant having a first end and a second end. The first end of the non-ionic surfactant has an affinity for the bulk material, and the second end of the non-ionic surfactant is fluorinated.Type: ApplicationFiled: March 13, 2009Publication date: November 5, 2009Applicant: Molecular Imprints, Inc.Inventors: Frank Y. Xu, Michael N. Miller
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Publication number: 20090206233Abstract: A process for making silicon ingots using a multi-part, reusable, graphite crucible of at least two mold pieces configured for assembly into an open top mold having an interior surface functional as a mold cavity for receiving molten silicon; removing or reducing a prior applied release coating from the interior surface until a uniformly smooth finish is achieved; coating the interior surface with a first layer of release coating comprising silicon nitride; coating the interior surface with a second layer of release coat comprising silica suspended in water; coating the interior surface with a third layer of release coat comprising silicon nitride; curing the release coat on said crucible; casting a silicon ingot in the crucible; and then repeating the prior steps multiple times.Type: ApplicationFiled: April 7, 2009Publication date: August 20, 2009Applicant: GT SOLAR INCORPORATEDInventors: Santhana Raghavan Parthasarathy, Yuepeng Wan, Carl Chartier, Jonathan A. Talbott, Kedar Gupta
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Patent number: 7562858Abstract: The present disclosure relates to a quench mold that may include an interior cavity and a coating on the interior cavity. The coating may include a plurality of particles such as metal-coated particles.Type: GrantFiled: March 16, 2006Date of Patent: July 21, 2009Assignee: Diamond Innovations, Inc.Inventors: Timothy Francis Dumm, Kan-Yin Ng
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Publication number: 20090159230Abstract: A mold forming and molding technology operable to produce a silicon ingot suitable for obtaining a solar cell substrate is disclosed. A slurry is prepared comprising particles with surface oxide layers operable to bond the particles to each other. An external force is applied to the slurry to eliminate cohesion of the particles to form a de-cohesive slurry, and an inner surface of a mold base is coated with the de-cohesive slurry to form a releasing layer that reduces defects in the silicon ingot.Type: ApplicationFiled: February 25, 2009Publication date: June 25, 2009Applicant: Kyocera CorporationInventors: Masahiro Tsuchida, Shigeru Goto, Kentaro Okushima, Muneyoshi Yamatani
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Patent number: 7520742Abstract: A pillar with a high aspect ratio is transferred by a nanoprinting method. In order to form a fine structure on a substrate, a nanoprinting apparatus heats and presses the substrate and a mold with a fine concave-convex pattern formed thereon, the mold having a mechanism for transferring and applying a mold-releasing agent. A method for transferring a fine structure using the aforementioned nanoprinting apparatus.Type: GrantFiled: March 17, 2004Date of Patent: April 21, 2009Assignee: Hitachi, Ltd.Inventors: Shigehisa Motowaki, Akihiro Miyauchi, Masahiko Ogino, Kosuke Kuwabara
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Patent number: 7516936Abstract: The present invention generally relates to a contact lens forming mold and to a method of producing contact lenses with higher production yield and improved quality. By coating a contact lens forming mold with a nano-structured fluorine-containing inorganic polycondensate coating solution the number of lens holes, such as voids or areas of non uniform thickness of a contact lens therein produced is substantially decreased.Type: GrantFiled: April 27, 2006Date of Patent: April 14, 2009Assignee: Novartis AGInventor: Giovanni Campanelli
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Publication number: 20090030150Abstract: The present invention relates to a composition designed to be a release agent applied to the surface of a molding apparatus and method of using the composition in molding operations. The composition includes a siloxane composition, hydrophilic matting particles, a cross linking agent, a binding agent having hydrophobic and hydrophilic characteristics. The composition may optionally include a carrier. The composition is designed to be applied to the surface of a mold, allowing for repeated use without the need for re-applying the composition between uses.Type: ApplicationFiled: July 26, 2007Publication date: January 29, 2009Applicant: Henkel CorporationInventors: Zheng Lu, Zhixiang Lu
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Patent number: 7441745Abstract: A mold and a process for producing a base material having a transferred micropattem, wherein the mold comprises a transparent substrate having chemical bonds resulting from functional groups (x) on a surface on which an interlayer (A) is formed, the interlayer (A) present between the surface of the transparent substrate and a surface layer (B) which has a micropattem for molding a photocurable resin, wherein interlayer (A) is a layer made of a fluoropolymer (1) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has reactive groups (y) reactive with functional groups (x), and surface layer (B) is a layer made of a fluoropolymer (2) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has substantially no reactive groups (y).Type: GrantFiled: May 29, 2007Date of Patent: October 28, 2008Assignee: Asahi Glass Company, LimitedInventors: Yasuhide Kawaguchi, Yoshihiko Sakane, Daisuke Shirakawa
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Patent number: 7407146Abstract: A composite material used for a resin mold for forming hardened resin by hardening fluid resin is provided. The composite material comprises a first material having excellent wear resistance against the fluid resin and a second material having excellent unwettability against the fluid resin. The resin mold comprises a substrate of the first material, a large number of pores each provided to form an opening on a surface of the substrate opposite to the fluid resin and a film of the second material formed along the inner wall surface of each pore at least around the opening. Each of the large number of pores is a communicating hole connecting the surface opposite to the fluid resin and the remaining surface with each other. Therefore, releasability between a mold surface and the hardened resin and wear resistance of the composite material against the fluid resin can be improved.Type: GrantFiled: December 30, 2004Date of Patent: August 5, 2008Assignees: Towa Corporation, Japan Fine Ceramics CenterInventors: Takaki Kuno, Keiji Maeda, Yosinori Noguchi, Satoshi Kitaoka, Naoki Kawashima
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Publication number: 20080061458Abstract: There is provided a mold formed of fluorocarbon resin to prevent a resin, which is a material of a lens of a LED package, from adhering to the mold even without using a separate release film, and a method of manufacturing the light emitting package using the mold. The mold includes a plurality of cavities formed in an upper surface thereof to hold a resin for forming lenses of the light emitting diode package. The mold and the method using the mold prevents adherence of the resin without using a separate release film, allowing formation of a lens with a smooth surface and formation of a protrusion or an indentation on the surface of the lens.Type: ApplicationFiled: September 7, 2007Publication date: March 13, 2008Inventors: Young Sam Park, Hun Joo Hahm, Seong Yeon Han, Chul Hee Yoo
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Publication number: 20080023619Abstract: The invention relates to a mould for the production of plastic abrasives, of the type used individually or in sets for baking mixtures consisting thermosetting resins combined with abrasive powders in high-temperature ovens, wherein said mould is coated with metal-matrix materials in which at least one substance with non-stick, properties is mixed in micronised form. The invention also includes transport units which are easily detached from the drive chains of moulds for the production of plastic abrasives, the type used for baking mixtures consisting of thermosetting resins combined with abrasive powders in high-temperature ovens. The moulds positioned on the guides of the transport units are attached individually and removably.Type: ApplicationFiled: December 13, 2004Publication date: January 31, 2008Inventor: Giovanni Re
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Publication number: 20080026139Abstract: Disclosed is: (i) a mold-spraying apparatus of a molding system and/or (ii) a molding system having a mold-spraying apparatus, and/or (iii) a method of a mold spraying apparatus of a molding system, and/or (vi) a method of a molding system having a mold-spraying apparatus, amongst other things.Type: ApplicationFiled: March 23, 2007Publication date: January 31, 2008Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.Inventors: Jacek Kalemba, Josef Graetz
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Patent number: 7255553Abstract: A light guide plate mold core (1) includes a main body (13) having a molding surface (12) and a plurality of concavities (13a) formed at the molding surface. The main body is made of a material whose thermal conductivity is limited in the range from 0.002 cal/cm.s.K. (calories/centimeter.second.Kelvin) to 0.009 cal/cm.s.K. The thermal conductivity of the material for the light guide plate mold core is less than that of stainless steel. Therefore the rate of spreading of heat in the light guide plate mold core is lower than that of a conventional light guide plate mold core, so that stresses within a formed light guide plate can be released more. Thus by using the light guide plate mold core, a light guide plate having a highly even bottom surface can be manufactured. A method for manufacturing the light guide plate mold core is also provided.Type: GrantFiled: July 26, 2004Date of Patent: August 14, 2007Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Charles Leu, Tai-Cherng Yu, Ga-Lane Chen
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Patent number: 7222657Abstract: A metal object is formed by die-casting with the use of a specially treated mold. The mold has cavity-defining surfaces covered by a heat-insulating layer made of a material that includes ceramic powder and heat-resistant resin. Molten metal is injected into the cavity coated with the heat-insulating layer.Type: GrantFiled: January 9, 2003Date of Patent: May 29, 2007Assignee: Fujitsu LimitedInventors: Koichi Kimura, Kota Nishii
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Patent number: 7220120Abstract: The present invention encompasses, in part, a method and apparatus for lens casting in which two molds, preferably formed of plastic, are interconnected or joined together via a ring to form a mold cavity having substantially the same dimensions of the lens to be formed therein. The invention is further directed to compositions and methods used in lens casting. In a first implementation the invention includes a mold having a ring having an interior periphery; a front mold formed of a plastic and having a lens-forming surface, an edge circumscribing the lens-forming surface that is sized to be complementarily received within a portion of the interior periphery of the ring, and a base having dimensions greater than the interior periphery; and a rear mold formed of a plastic and having a lens-forming surface.Type: GrantFiled: July 22, 2005Date of Patent: May 22, 2007Assignee: Qspex, LLCInventors: Kai Su, Richard Lu, David Wright, Debbie Makita
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Patent number: 7201358Abstract: A self-supporting baking mold that includes a base member having a fanciful shape with a perimeter that is more complex than a simple circle and a depending sidewall coupled to said base member. The baking mold is sufficiently rigid to support a quantity of batter without being disposed in a muffin pan or other external supporting structure.Type: GrantFiled: September 23, 2005Date of Patent: April 10, 2007Assignee: Alcoa Inc.Inventors: Monica Stautner Nichols, Bruce Robbins, G. Douglas Powell, Jennifer Danich O'Flynn
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Patent number: 7156362Abstract: Solder bump pads are formed on a semiconductor substrate by way of a semiconductor template that has been micromachined to receive solder paste material. The solder paste material is then formed into precisely controlled ball shapes and geometries.Type: GrantFiled: October 7, 2005Date of Patent: January 2, 2007Assignee: Micron Technology, Inc.Inventor: Salman Akram
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Patent number: 7156361Abstract: Metal traces and solder bump pads are formed on a semiconductor substrate by way of a semiconductor template that has been micromachined to receive solder paste material. The solder paste material is then formed into precisely controlled ball shapes and metal trace geometries. First, a semiconductor substrate is covered with a mask material for protecting selected surfaces of the substrate that are not to be etched. Next, a mask is applied in order to etch the substrate surface below. Solder ball sites and metal trace channels are formed at this time. A solder nonwettable material is applied to the exposed surfaces of the solder ball sites and the metal trace channels. A solder paste can then be applied uniformly across the surface of the substrate, thus filling in any sites and channels, or both, that are used to form the balls or metal traces desired.Type: GrantFiled: November 8, 2000Date of Patent: January 2, 2007Assignee: Micron Technology, Inc.Inventor: Salman Akram
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Patent number: 7147200Abstract: An improved screen tooling for a fiber preforming process, and a durable coating system for such tooling. The coating system comprises a surface layer of a porcelain enamel composition that is generally a borosilicate glass, and preferable contains quartz, borax, boric oxide, potassium nitrate, sodium silicofluoride, and manganese dioxide, and optionally contains titanium dioxide, antimony oxide, cobalt oxide and/or barium oxide. Preferred compositions are dependent in part on the screen tooling material. The invention also encompasses a fiber preforming process that utilizes screen tooling with the coating system.Type: GrantFiled: July 29, 2003Date of Patent: December 12, 2006Assignee: General Motors CorporationInventors: Arianna T. Morales, Elisabeth J. Berger, Jessica A. Schroeder
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Patent number: 7131626Abstract: A mold having an upper end and a downwardly extending wall terminating in a lower end, and a continuous notch spanning across the wall extending upwardly from the lower end, with both an outside surface of the wall and an inside surface being of a coating which is non-stick to dough wrapped around the outside surface of the mold and to dough which is pushed downwardly through the notch from the upper end of the mold towards its lower end.Type: GrantFiled: June 2, 2003Date of Patent: November 7, 2006Inventor: Lawrence A. Cole
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Patent number: 7124994Abstract: The present invention describes a method for rapidly fabricating a robust 3-dimensional silicon-mold for use in preparing complex metal micro-components. The process begins by depositing a conductive metal layer onto one surface of a silicon wafer. A thin photoresist and a standard lithographic mask are then used to transfer a trace image pattern onto the opposite surface of the wafer by exposing and developing the resist. The exposed portion of the silicon substrate is anisotropically etched through the wafer thickness down to conductive metal layer to provide an etched pattern consisting of a series of rectilinear channels and recesses in the silicon which serve as the silicon micro-mold. Microcomponents are prepared with this mold by first filling the mold channels and recesses with a metal deposit, typically by electroplating, and then removing the silicon micro-mold by chemical etching.Type: GrantFiled: December 15, 2004Date of Patent: October 24, 2006Assignee: Sandia National LaboratoriesInventor: Alfredo M. Morales
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Patent number: 7000885Abstract: A mold is configured to form a gel monolith including a first gel portion and a second gel portion. The mold includes a base including a first hydrophobic surface. The mold further includes a tubular outer wall including a second hydrophobic surface, and the outer wall is coupled to the base. The mold further includes a removable tubular insert including an inner surface and an outer hydrophobic surface. The insert is removably coupled to the base.Type: GrantFiled: February 1, 2002Date of Patent: February 21, 2006Assignee: Simax Technologies, Inc.Inventors: Shiho Wang, Yasar Halefoglu, Chih-hsing Cheng, Dengfeng Xu
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Patent number: 6935606Abstract: A Formwork includes rigid casting panels constructed to receive a batch of poured concrete. The surfaces of the panel exposed to contact the concrete are covered with a water absorbing liner coated or impregnated with a photocatalysis compound. The photocatalysis compound in a semiconductor material, such as titanium dioxide powder, which activated by sunlight to generate oxygen radicals.Type: GrantFiled: July 9, 2002Date of Patent: August 30, 2005Inventor: Wai Wing Chan
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Patent number: 6923930Abstract: A metal mold for use in a nano-imprinting process comprises a firmly adhering monomolecular non-sticking layer. The layer was obtained by subjecting the mold to a reaction with a fluoroalkyl compound having a mercapto group. As a result of said reaction, the layer comprises an organic sulfide of said metal.Type: GrantFiled: January 19, 2001Date of Patent: August 2, 2005Assignee: Obducat AktiebolagInventors: Torbjörn Ling, Lars Montelius, Babak Heidari
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Patent number: 6913715Abstract: This invention relates to the preparation of molds for the production of contact lenses and other ophthalmic articles. By using an inorganic material to coat the optical surfaces and sidewalls of mold parts made from clear-resin materials, manufacturers can produce lens molds with greater dimensional stability and chemical resistance. In addition to protecting the clear resin from interaction with otherwise reactive monomers from which the molded article is made, such coatings can also be used to achieve preferential release of the molded article. The resulting mold is especially useful for providing an economical way to improve manufacturing quality of contact lenses.Type: GrantFiled: March 12, 2003Date of Patent: July 5, 2005Assignee: Bausch & Lomb IncorporatedInventors: Hongwen Li, Dominic V. Ruscio, Yu Chin Lai, Horngyih Huang
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Publication number: 20040207121Abstract: A process for forming a stress-free thermosetting product which comprises: (a) mixing a high impact polymer compound, a liquid thermosetting monomer, a low temperature polymerizing catalyst and a high temperature polymerizing catalyst together; (b) pouring the thermosetting monomer, high impact polymer compound mixture, a low temperature polymerizing catalyst and high temperature polymerizing catalyst into a cavity of a mold which has a polymer coating or film on the interior surface thereof; (c) permitting the mixture in the mold with the low temperature and high temperature polymerizing catalysts to cure to a fully cured polymerized product; and (d) removing the polymerized product from the mold and stripping away the coating or film.Type: ApplicationFiled: April 18, 2003Publication date: October 21, 2004Inventor: Paul R. Schiller