Weight Per Unit Area Specified (e.g., Gms/sq Cm, Lbs/sq Ft, Etc.) Patents (Class 428/340)
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Patent number: 6565945Abstract: A films composite useful for various printing methods, and particularly UV ray flexographic printing, includes a top layer formed on a substrate film made from a synthetic polymer, particularly polypropylene, containing a binder resin and having an arithmetical mean roughness Ra of 0.2 to 3.5 determined in accordance with JIS B 0601 and, optionally, an anchor layer formed between the substrate film and the top layer and containing an adhesive resin and an adhesive undercoat layer formed between the substrate film and the anchor layer and containing an adhesive resin.Type: GrantFiled: March 30, 1999Date of Patent: May 20, 2003Assignee: Oji Paper Co. Ltd.Inventors: Yoshiharu Nishikori, Hiroyuki Yamada, Koichi Katayama, Yasushi Kobayashi, Eiichi Mikami
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Patent number: 6558785Abstract: The present invention discloses an insulated reentry heat shield for minimizing heat transfer to a spacecraft structure or the like during atmospheric reentry. The heat shield (10) comprises an outer heat resistant layer (12) including an ablative first material backed by an inner insulating layer (14) including an insulating second material. The outer and inner layers (12, 14) are bonded to one another by a middle layer (16) disposed therebetween. The middle layer is formed by disposing at least one layer of a phenolic loaded third material between the outer and inner layers and heating all three layers simultaneously to remove phenolic volatiles from the middle layer. In one embodiment, the ablative first material is carbon-carbon, the insulating second material is carbon foam, and the phenolic loaded third material is carbon scrim cloth. The present invention also discloses a method for use in constructing a heat shield.Type: GrantFiled: August 5, 1999Date of Patent: May 6, 2003Assignee: Lockheed Martin CorporationInventors: Suraj Prakash Rawal, Janine M. Thornton, William H. Willcockson
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Publication number: 20030082369Abstract: A composite coextruded material for use in facing insulation rolls or batts and other materials. The facing material comprises a layer of paper and two polymer resin layers. The present invention further comprises a method of making and using the insulation facing material.Type: ApplicationFiled: October 30, 2001Publication date: May 1, 2003Inventors: William R. Arndt, Michael R. Nowak, LouAnn S. Mueller
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Patent number: 6548428Abstract: The invention consists of a multilayer material and a process for manufacturing this material. The multilayer material comprises a polyester substrate which is provided with a thermoset plastic polymer coating and a layer of contact adhesive. The polymer coating is produced by a reaction between a polyurethane polymer containing hydroxyl groups and a low molecular linear polyisocyanate, with catalytic tin-organic additives and colorants. The multilayer material is resistant to tearing and is also weather-resistant. A transparent, reactive layer, consisting, for example of a layer to take toner or ink, or a metallic layer, can be deposited on the side opposite to the polymer-coated substrate. Multilayer materials of this kind are suitable for large-scale covering of supporting frameworks in the construction of model aircraft and are also suitable as a medium onto which images and print may be applied using a plain paper copier, and can also be used to carry advertising.Type: GrantFiled: July 2, 1996Date of Patent: April 15, 2003Inventors: Siegfried Lanitz, Heinz Piesold
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Patent number: 6537653Abstract: A bondable wood cellulosic filler/olefinic plastic composite sheet material made by extruding in a sheet shape a mixture consisting of: (1) 40-60 parts by weight of an olefinic plastic; (2) 60-40 parts by weight of a wood cellulosic filler, the size thereof being 40-110 mesh and the water content being not exceeding 5%; and (3) 0.5-5.0 parts by weight of an additive mainly consisting of polypropylene modified by maleic anhydride or its derivative.Type: GrantFiled: April 20, 2000Date of Patent: March 25, 2003Assignee: Namba Press Works Co., Ltd.Inventors: Fumi O Goto, Yasumasa Kasahara, Tatsuyuki Ishiura
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Publication number: 20030045164Abstract: The present invention provides a nonwoven fabric material prepared from short fibers including thermal-resistant synthetic fibers bound with an inorganic binder, a prepreg and a circuit board using the same. The circuit board has an excellent dimensional stability even at a high temperature, and the circuit board is prevented from warping or being damaged by moisture absorption or the like. The inorganic binder is a residue formed from a low melting point glass solution or a water-dispersible colloidal solution including at least either fibers or particles of low melting point glass dispersed therein. When the binder is used, a chemical covalent bonding by a siloxane bonding is formed.Type: ApplicationFiled: February 17, 2000Publication date: March 6, 2003Inventors: Fumio Echigo, Yoshihiro Kawakita
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Patent number: 6517919Abstract: A laminate product is provided. The laminate product includes a first layer of porous expanded polytetrafluoroethylene membrane, and a second layer of woven fabric of polytetrafluoroethylene containing yarn. The membrane preferably has an air permeability of at least 0.01 cfm/ft2 at 0.5 inch water gauge, and a thickness of greater than about 0.5 mil. The woven fabric preferably has a weight of between about 15 ospy and about 30 ospy. The laminate product can be sewn to provide a filter bag for use in pulse jet filter applications.Type: GrantFiled: July 10, 1998Date of Patent: February 11, 2003Assignee: Donaldson Company, Inc.Inventor: James W. Griffin
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Patent number: 6492017Abstract: A surface protection film comprising a transparent backing of polypropylene or propylene-ethylene copolymer, which comprises a light stabilizer, and a self-adhesive composition of polyethylene-vinyl acetate (EVA) having a VA fraction of from 40 to 80% by weight and a melt index MFI in accordance with ISO 1133 (A/4) of from 0.5 to 25 g/10 min at 190° C. and 2.16 kg, which is blended with from 0 to 35% by weight of a polyether of the form XO—[(CH2)4—O]—Y (1) or XO—[(CH(CH3)—CH2—O]—Y (2) having a weight-average molecular weight Mw of from 200 to 100,000 g/mol, X and Y being selected from the group consisting of H—, (CnH2n+1)— where n is from 1 to 20, CH2═CHCO—, CH3CH(NH2)CH2—, 2,3-epoxypropyl- or C6H5—CO—, CH2═C(CH3)—CO—.Type: GrantFiled: November 10, 2000Date of Patent: December 10, 2002Assignee: tesa AGInventors: Nicolai Böhm, Jobst-Waldemar Klemp, Horst-Günther Ströh
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Publication number: 20020170692Abstract: The present invention is a machine for manufacturing a fibrous web from a fibrous suspension, with a sheet forming area that exhibits at least one suction box, which includes a main box with at least one suction box cover that is formed from at least two drainage elements that run laterally to the machine's running direction, border a suction slit, and each has one main body and at least one ceramic. The present invention is identified by the fact that at least one drainage element and/or one format slide exhibit at least one removable edge piece in which is integrated at least one temperature sensor in order to measure the temperature in the ceramic and/or the temperature at an adhesive point between the ceramic and the associated main body and/or the temperature in the main body. The present invention is furthermore a process and a system for monitoring a drainage element.Type: ApplicationFiled: May 14, 2002Publication date: November 21, 2002Inventors: Gunter Halmschlager, Herbert Haunlieb, Christoph Haase, Stefan Lehner-Dittenberger, Rudiger Keinberger, Helmut Fitzke, Herbert Boden
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Publication number: 20020164279Abstract: Disclosed herein is a single step sterilization wrapping material suitable for use, as an example, in wrapping surgical instruments and supplies for sterilization, transportation and storage. The material includes separate inner and outer wraps which, unlike previous wraps, are joined to one another. Common wrapping techniques involve wrapping items to be sterilized with two separate sheets of wrap. The present invention provides separate wraps which can be specially engineered to deliver specific properties for each sheet and then joined to one another so as to permit wrapping and opening in a neat single step process which increases efficiency and saves time and money. In special situations the outer wrap can be engineered with increased strength, the inner wrap with increased barrier properties and the inner and outer wraps can be made visually distinct from one another so that improper wrapping or opening is not a problem.Type: ApplicationFiled: April 19, 2002Publication date: November 7, 2002Inventors: Sonya Nicholson Bourne, Nelson McRay, Lavada Campbell Boggs, William Ralph Neff, Charles John Morell, Marsha Lottie Vaughn
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Publication number: 20020160252Abstract: A conductive carbonaceous-fiber sheet has a thickness of from 0.05 to 1 mm, a weight per a unit area of from 60 to 250 g/m2, a bending resistance (L) as determined by the 45° Cantilever method of 6 cm or higher and an in-plane volume resistivity of 0.2 &OHgr;cm or lower, and is suitable for use as a gas diffusion layer in a solid polymer electrolyte fuel cell.Type: ApplicationFiled: February 27, 2002Publication date: October 31, 2002Applicant: Mitsubishi Chemical CorporationInventors: Satoshi Hirahara, Mitsuo Suzuki
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Publication number: 20020153110Abstract: Disclosed is a multi-layer paper suitable as a material for preparing heat-sensitive stencil printing masters. The multi-layer paper is produced by combining a plurality of thin paper layers by paper making. The multi-layer paper has a peel strength of 10 N/m or less and may be delaminated into at least two tissue sheets.Type: ApplicationFiled: January 22, 2002Publication date: October 24, 2002Inventors: Hideyuki Yamaguchi, Hiroshi Tateishi, Ippei Kato, Munenaka Koyama, Yoshihiro Mimura
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Patent number: 6468649Abstract: The present invention provides an implantable medical device having a substrate with a hydrophilic coating composition to limit in vivo colonization of bacteria and fungi. The hydrophilic coating composition includes a hydrophilic polymer with a molecular weight in the range from about 100,000 to about 15 million selected from copolymers acrylic acid, methacrylic acid, isocrotonic acid and combinations thereof.Type: GrantFiled: December 9, 1999Date of Patent: October 22, 2002Assignee: Scimed Life Systems, Inc.Inventor: Samuel P. Zhong
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Patent number: 6461386Abstract: Specific transfer methods and articles to impart a metal-ion based antimicrobial finish to recipient textile surfaces. Such treatments preferably comprise silver ions, particularly as constituents of inorganic metal salts or zeolites. In particular, the inventive method involves the application of a solid, inorganic antimicrobial material to a donor substrate (such as a dryer sheet), and the subsequent placement of such a substrate within a tumble drying machine containing textile fabrics and operating the machine. The donor substrate, upon contact with the recipient textile fabrics, transfers antimicrobially effective amounts of the metal-ion based compounds to such recipient fabrics thereby imparting at least a temporary antimicrobial finish over at least a portion of such fabrics. The donor substrates, with either the antimicrobial compound alone or mixed with standard tumble dryer additives (such as perfumes, fabric softeners, fiber lubricants, and the like) are also contemplated within this invention.Type: GrantFiled: May 17, 2000Date of Patent: October 8, 2002Assignee: Milliken & CompanyInventors: Marie S. Chan, Lawrence F. Kind
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Patent number: 6458454Abstract: The present invention refers to a holding device which is attachable to a rigid surface comprising an exposed pressure-sensitive adhesive layer wherein the pressure sensitive adhesive is readily removable from the surface and is selected to exhibit a compliance of between 5×10−7 to 2×10−6 cm2/dyne, and a toughness of between 5×102 to 2×103 pounds/inch2 and to a corresponding pressure sensitive adhesive. The invention furthermore refers to a kit of parts comprising a holding means and a pressure-sensitive adhesive tape to be attached to said holding means said adhesive tape comprising at least one exposed pressure-sensitive adhesive layer according to claims of the inventions.Type: GrantFiled: April 6, 1999Date of Patent: October 1, 2002Assignee: 3M Innovative Properties CompanyInventor: Karl W. Kreckel
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Patent number: 6458450Abstract: A wiping implement suitable for use as a bath tissue can be formed into sheets, each sheet comprising at least one ply of a paper web having a basis weight of at least about 25 lb/3000 square feet. The sheet can have a width of at least about 4.5 inches and temporary wet tensile properties. The sheet of the present invention can have an area of at least about 30 square inches. In a multiple ply embodiment, the sheet can have an optimized basis weight of at least about 42 lb/3000 square feet while maintaining nearly the same amount of actual total fiber usage per cleaning task as current premium bath tissues.Type: GrantFiled: August 11, 2000Date of Patent: October 1, 2002Assignee: The Procter & Gamble CompanyInventors: Mark John Steinhardt, Michael William Tafuri, Jr., Paul Thomas Weisman, Thomas Hoerner, Bernhard Maier, Paul Dennis Trokhan, Kenneth Douglas Vinson
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Patent number: 6451417Abstract: The present invention relates to a molded article laminated with fabric wherein a thermoplastic resin (A) has a fabric, made up of fibers of a highly heat resisting thermoplastic resin (B), adhered to the surface thereof, wherein the thermoplastic resin (A) of the molding contains the highly heat resisting thermoplastic resin (B) constituting the fibers and wherein the highly heat resisting thermoplastic resin (B) is present as minute particles in the thermoplastic resin (A), and a method not only for reprocessing the mold flashes at the time of the preparation of molded articles laminated with fabric but also for reprocessing the defective molded articles laminated with fabric which come from the production line and are destined to be discarded.Type: GrantFiled: December 23, 1998Date of Patent: September 17, 2002Assignee: Kyoraku Co., Ltd.Inventors: Takehiko Sumi, Tetuya Fukumoto
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Patent number: 6436508Abstract: The present invention relates to absorbent article such as sanitary napkins and panty liners comprising a topsheet, absorbent core, and backsheet which are breathable by the incorporation of a breathable backsheet and have a reduced tendency to exhibit garment wet through. The backsheet comprises at least one air permeable layer such as an apertured formed film or fibrous layer which is applied and preferably coated with a non-soluble, liquid swellabe material, such as polyvinyl alcohol. Upon contact with fluid discharge, the material swells and closes the apertures of the layer, thereby reducing air permeability and preventing the passage of liquid through the layer and thus through the backsheet onto the garment of the wearer of the article.Type: GrantFiled: April 19, 2000Date of Patent: August 20, 2002Assignee: The Procter & Gamble CompanyInventors: Fabio Ciammaichella, Michael Divo, Italo Corzani
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Patent number: 6432519Abstract: An ink jet recording medium, comprises a support; a first layer provided on the support; and a second layer provided on the first layer so as to come in contact with the first layer, the second layer being an ink absorbing layer. The Young's modulus of the first layer is smaller than the Young's modulus of the second layer.Type: GrantFiled: April 7, 2000Date of Patent: August 13, 2002Assignee: Konica CorporationInventors: Kenichi Kazama, Yuichiro Maehara
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Patent number: 6406765Abstract: A pouch containing a flowable material and films and processes for making the pouch are disclosed. The pouch is made from a sealant film having at least two heat-sealed edges and made from a material comprising a copolymer of ethylene and at least one C4-C10 alpha-olefin manufactured in a polymerization process using a single-site polymerization catalyst.Type: GrantFiled: October 15, 1996Date of Patent: June 18, 2002Assignee: DuPont Canada Inc.Inventors: Vladimir Ronald Braun, Alana Joi Verdone
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Patent number: 6406674Abstract: Disclosed herein is a single step sterilization wrapping material suitable for use, as an example, in wrapping surgical instruments and supplies for sterilization, transportation and storage. The material includes separate inner and outer wraps which, unlike previous wraps, are joined to one another. Common wrapping techniques involve wrapping items to be sterilized with two separate sheets of wrap. The present invention provides separate wraps which can be specially engineered to deliver specific properties for each sheet and then joined to one another so as to permit wrapping and opening in a neat single step process which increases efficiency and saves time and money. In special situations the outer wrap can be engineered with increased strength, the inner wrap with increased barrier properties and the inner and outer wraps can be made visually distinct from one another so that improper wrapping or opening is not a problem.Type: GrantFiled: October 17, 2000Date of Patent: June 18, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Sonya Nicholson Bourne, Nelson McRay, Lavada Campbell Boggs, William Ralph Neff, Charles John Morell, Marsha Lottie Vaughn
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Patent number: 6403176Abstract: The present invention relates to improved cover laminates with high performance for forming covers for industrial packaging. The laminates include substantially one layer of metallized polyester, and one or two layers of a special polyethylene layer supplied as a crossed film. The laminate may be made by an extrusion process carried out at 300° C., by glue lamination, or a combination of the two.Type: GrantFiled: February 5, 1998Date of Patent: June 11, 2002Inventors: Andre Patouraux, Philippe Patouraux
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Patent number: 6391155Abstract: A lightweight, coated web printing paper is described which is suitable for use in the cold-set printing process, which has specific values for water penetration and ink absorption and has gloss values of at least 20% for a smoothness in the range of 200 to 600 sec. Bekk.Type: GrantFiled: September 5, 2000Date of Patent: May 21, 2002Assignee: Haindl Papier GmbHInventors: Hartmut Wurster, Hans-Peter Hofmann
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Patent number: 6387489Abstract: A decorative sheet arranged on the outside or inside of buildings is composed of a compression-molded core made from one or more core layers. The core contains cellulose fibers or wood fibers, bound to one another by a hot-curing resin. Each core layer is composed of wood fibers or of cellulose fibers having lengths from 0.3 to 30 mm, and is containing pigments or is without pigments. The pigments are uniformly distributed within the core layer, and their proportion by weight is from above 0 to 20% by weight of the mixture made from pigments and from wood fibers or cellulose fibers. The pigments are colorfast, and weathering of the wood fibers or cellulose fibers at the surfaces of the sheet causes the original coloration of the core surfaces to change so that, when dry, the core is covered by a gray-silver patina, but substantially regains its original coloration when wet.Type: GrantFiled: March 7, 2001Date of Patent: May 14, 2002Assignee: Trespa International B.V.Inventors: Remco Willemse, Alex Van de Wall, Henricus Kömhoff
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Patent number: 6379786Abstract: A ligneous finishing material including a base plate, a sheet formed from a sheet base impregnated with a thermosetting resin and attached to the base plate, and a decorative sheet impregnable with a resin and attached to the sheet. The base plate, sheet and decorative sheet are laminated on each other by a hot-press process. The thermosetting resin is preferably a phenol resin having a fluidity in a pre-pregnated state of 3% to 50%. The ligneous finishing material is inexpensive and highly resistant to surface damaging, and can be used as a surface facing material for floors, etc., and as a facing material for fittings and furnishings.Type: GrantFiled: July 15, 1999Date of Patent: April 30, 2002Assignee: Bridgestone CorporationInventors: Michitaka Takeshita, Sei Aoki, Hideshi Yanagi, Takeichi Yoshida, Masanori Abe
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Patent number: 6379761Abstract: The invention relates to a transfer label comprising a backing layer and a transfer layer which is releasably attached to the backing layer. From transfer to a container, the transfer layer is detached from the backing layer. After attachment to a container, the transfer layer can be removed in an aqueous liquid under turbulent soaking conditions at a temperature of not more than 100° C., preferably not more than 70° C. During these conditions, the transfer layer breaks up in at least four parts wherein each part is not smaller than 5 micrometers. The transfer layers is detached from the container with a soaking time of not more than 20 minutes, preferably not more than 10 seconds. The transfer label according to the present invention has a very high adherence during storage and use conditions, and can be rapidly removed from a container such as a reusable crate for bottles, in an economic manner.Type: GrantFiled: December 14, 1998Date of Patent: April 30, 2002Assignee: Heineken Technical Services B.V.Inventors: Thomas Lynn Brandt, Daniel Nathaniel Willekens, Erwin Anton Rosens, Patrick Johannes Blom
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Publication number: 20020049418Abstract: An absorbent article having an absorbent core and a backsheet, wherein the backsheet has a MVTR of from about 5800 to about 10000 g/m2/24 hrs. and a basis weight of less than about 32 g/m2.Type: ApplicationFiled: June 13, 2001Publication date: April 25, 2002Inventor: Allison London Brown
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Patent number: 6374828Abstract: Two plies (12, 14) woven from synthetic yarns (18) are joined together to define a single, two-ply surgical wrapper (10) which may be used to wrap a surgical pack (50) with only the single wrapper (10) to provide the effect of a sequential wrap.Type: GrantFiled: March 2, 2000Date of Patent: April 23, 2002Assignee: Standard Textile Co., Inc.Inventor: Richard F. Stewart
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Publication number: 20020045091Abstract: A heat-resistant separator composed of a non-woven fabric of high-melting resin, 1 to 20 &mgr;m in average fiber diameter, 5 to 300 g/m2 in basis weight, 1 to 200 cc/cm2/sec in air permeability, and 0.01 to 1.0 mm in thickness, or a laminated heat-resistant separator composed of a laminate having a melt-blown, non-woven fabric layer of high-melting resin, 1 to 20 &mgr;m in average fiber diameter, 5 to 300 g/m2 in basis weight, 1 to 200 cc/cm2/sec in air permeability, and 0.01 to 1.0 mm in thickness is more resistant to heat, and hence safer, and is suitable for batteries and electrical double-layer capacitors serviceable at high temperature.Type: ApplicationFiled: July 31, 2001Publication date: April 18, 2002Inventors: Toshikazu Kamei, Masaki Yamazaki
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Patent number: 6352762Abstract: An easily adhesive polyamide film has been created from unstretched or uniaxially stretched non-heated polyamide film coated with a water-base coating mixture, whose main constituents are (A) water polyurethane resin containing acetylene glycol in which each carbon atom immediately adjacent to the triple-bonded carbon atom is replaced with a hydroxyl group and a methyl group, and/or an ethylene oxide addition product of the acetylene glycol; (B) a water-soluble polyepoxy compound; and (C) particles with an average diameter between 0.001 and 1.0 &mgr;m, of which the solid-content weight ratio is 98-30/2-70/0.1-10, the coating amount after stretching is between 0.005 and 0.030 g/m2, and the film is stretched in at least one direction and then heated. This newly invented film possesses good blocking resistance and excellent adhesiveness with print ink, laminate, and other coating mixtures, and is especially suitable for boiling sterilization, retort sterilization, and packaging of liquids.Type: GrantFiled: February 24, 1999Date of Patent: March 5, 2002Assignee: Kohjin Co., Ltd.Inventors: Shinji Shimizu, Masahiro Yanagida, Makio Tominaga, Makoto Ichiki
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Patent number: 6337144Abstract: A welding wire of the type consists of a plated or uncovered solid wire and a flux-cored wire for carbon steel or stainless steel, wherein one or more of hydrocarbon compounds selected from the group consisting of saturated or unsaturated hydrocarbon compounds, which have from 5 to 12 carbon atoms and a linear or branched structure, and hydrocarbon compounds having a cyclic structure are deposited on a wire surface. A lubricating oil and/or lubricating particles are chemically combined with a wire surface through the one or more hydrocarbon compounds. The total amount of the hydrocarbon compounds, and a lubricating oil and/or lubricating particles deposited on the wire surface is in the range of 0.1 to 5 g per 10 kg of the wire.Type: GrantFiled: November 12, 1998Date of Patent: January 8, 2002Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Hiroyuki Shimizu, Mika Nishida, Kaoru Masuda, Kazuhiko Ito, Kuniaki Miyazaki, Norio Masaie
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Patent number: 6333280Abstract: The present invention provides a flame-retardant or nonflammable decorative sheet which is a one-piece laminate of the following materials: one layer or two or more layers of a sheet material for a core layer, obtained by impregnating a base sheet material made of an inorganic fiber, with a composition comprising a phenolic resin and/or a melamine resin and aluminum hydroxide and/or magnesium hydroxide, the proportions of the former and the latter in the composition being 4-15% by weight and 96-85% by weight, respectively, and a sheet material for a decorative layer, placed on at least one side of the sheet material for the core layer. When the sheet material for the core layer consists of two or more layers, there can be interposed, between the layers of the sheet material for the core layer, a sheet material for a reinforcing layer obtained by impregnating a base sheet material made of an inorganic fiber, with a thermosetting resin.Type: GrantFiled: April 7, 1998Date of Patent: December 25, 2001Assignee: Sumitomo Bakelite Company, Ltd.Inventors: Osamu Hashimoto, Goro Tanaka, Tatsuya Hayashida
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Patent number: 6319596Abstract: Laminates of having a first outer layer of polyvinyl fluoride, at least one mid layer, and a second outer layer of polyvinyl fluoride, ethylene vinyl acetate or polyolefin with a surface of ionomer. The laminates are particularly useful for protecting photovoltaic cells, solar panels, and circuit boards.Type: GrantFiled: June 3, 1999Date of Patent: November 20, 2001Assignee: Madico, Inc.Inventors: Carl P. Kernander, Robert F. Davis
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Patent number: 6306497Abstract: This invention provides a pressure-sensitive adhesive article, such as a tape, comprising a backing and a pressure-sensitive adhesive coating. The adhesive coating comprises microspheres chemically bonded to a cross-linked polymer network. The adhesive coating is prepared from a mixture comprising a multifunctional aziridine cross-linking agent; a microsphere adhesive having carboxylic acid functional groups; and a binder adhesive having carboxylic acid functional groups. The cross-linked adhesive polymer network provides high cohesive strength and microspheres in the adhesive provide a method of controlling the peel strength. The pressure-sensitive adhesive tapes are particularly suitable for use on transcript imaging films, where they can be cleanly removed from the film.Type: GrantFiled: March 3, 1999Date of Patent: October 23, 2001Assignee: Arkwright IncorporatedInventor: Yongzhong Wang
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Patent number: 6299969Abstract: A biodegradable, structured shaped product having good flexibility or rigidity properties is provided by extruding starch having a relatively large defined particle size and preferably containing a nucleating agent.Type: GrantFiled: December 28, 1998Date of Patent: October 9, 2001Assignee: National Starch & Chemical Investment Holding CorporationInventors: Paul A. Altieri, Beth C. Tormey
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Patent number: 6299977Abstract: The present invention relates to a nonwoven fabric exhibiting dense, delicate, high quality appearance, and also relates to man made leathers exhibiting dense, delicate, high quality appearance, and bearing a resemblance to high quality natural leathers.Type: GrantFiled: April 27, 1999Date of Patent: October 9, 2001Assignee: Teijin LimitedInventors: Naohiko Takeyama, Masahisa Mimura
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Patent number: 6296931Abstract: The invention provides a recording sheet including an additive, referred to herein as a compatibilizer, to improve the quality of images formed by toner powder development of electrostatic charge patterns. Recording sheets, carrying images produced by toner powder transfer and fusion on a receptor surface, according to the present invention, exhibit improved light transmission and reduced light scattering. Specifically, a transparent sheet is provided having a toner-receptive coating containing about 4 wt. % to about 25 wt % of a compatibilizer on at least one surface, wherein the coating has a low density yellow Q factor value at least 2 less than an identical coating without the compatibilizer.Type: GrantFiled: September 28, 1999Date of Patent: October 2, 2001Assignee: 3M Innovatice Properties CompanyInventors: Jamshid Azizi, Joseph C. Carls, Shigeaki Dohgoshi, Koji Kamiyama, Andrew C. Lottes
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Patent number: 6294257Abstract: An electrically conductive elastomer film comprising (i) a thermoplastic elastomer and (ii) 5 to 100 parts by weight, based on 100 parts by weight of the thermoplastic elastomer, of an electrically conductive filler, and having a volume resistance of 0.1 to 5 &OHgr;cm as measured in the direction perpendicular to the film plane. This film is produced by a casting process wherein a releasable base is coated with a solution prepared by dissolving or dispersing 5 to 30 parts by weight of the sum of a thermoplastic elastomer and an electrically conductive filler in 100 parts by weight of an organic solvent; the thus-formed coating is dried; and then the thus-formed film is released from the releasable base.Type: GrantFiled: September 10, 1999Date of Patent: September 25, 2001Assignees: Zeon Corporation, Zeon Kasei Co., Ltd.Inventors: Kenji Tsukakoshi, Shuichi Akita, Kuniaki Goto
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Patent number: 6265052Abstract: A wiping implement suitable for use as a bath tissue can be formed into sheets, each sheet comprising at least one ply of a paper web having a basis weight of at least about 25 lb/3000 square feet. The sheet can have a width of at least about 4.5 inches and temporary wet tensile properties. The sheet of the present invention can have an area of at least about 30 square inches. In a multiple ply embodiment, the sheet can have an optimized basis weight of at least about 42 lb/3000 square feet while maintaining nearly the same amount of actual total fiber usage per cleaning task as current premium bath tissues.Type: GrantFiled: February 9, 1999Date of Patent: July 24, 2001Assignee: The Procter & Gamble CompanyInventors: Mark John Steinhardt, Michael William Tafuri, Jr., Paul Thomas Weisman, Thomas Hoerner, Bernhard Maier, Paul Dennis Trokhan, Kenneth Douglas Vinson
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Patent number: 6251510Abstract: There is provided a process for preparing a resin sheet for thermoforming which can be fabricated into containers and lids or caps for containers in the food packaging industries, particularly those which are resistant to heating in a microwave oven, which containers and lids or caps are excellent in transparency, antifog property, impact resistance, and heat resistance are obtained. A process for preparing an antifogged sheet comprising a propylene resin sheet with an antifogging agent comprising a polyglycerol fatty acid ester or a sucrose fatty acid ester as an effective ingredient.Type: GrantFiled: March 26, 1998Date of Patent: June 26, 2001Assignee: Japan Polychem CorporationInventors: Yoshinobu Nagaoka, Akihiko Egashira, Kazumasa Fujimura, Toshimitsu Hasegawa, Tomokazu Hirose, Hiroshi Kuzui, Toru Tagawa
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Patent number: 6248677Abstract: A ceramic fiber blanket is inserted into a mold, and ceramic fiber slurry, preferably made with refractory ceramic fibers, binders, and water, is deposited on the blanket. Vacuum pressure is created under the blanket to pull the fibers of the slurry toward the fibers of the blanket to entangle them together. The slurry and blanket is then dried to form a rigid yet surface compliant ceramic fiber composite product with superior thermal insulating and acoustic dampening properties.Type: GrantFiled: October 19, 1998Date of Patent: June 19, 2001Assignee: Rex Roto Technologies, Inc.Inventors: Leroy D. Dowding, Steven R. Schenck, John D. Vandermark, Robert W. Price
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Patent number: 6241853Abstract: A soft, flexible yet strong paper product is provided from the unique configuration of particular pulp types, cationic wet strength resins, and anionic processing aids.Type: GrantFiled: December 10, 1998Date of Patent: June 5, 2001Assignee: Kimberly Clark Worldwide, Inc.Inventors: Michael John Smith, Gary L. Bushman
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Patent number: 6224973Abstract: A multi-layer sheet suitable as sealable or peelable sheet specially used for closing foodstuff containers or blisters. This multi-layer sheet comprises a tie-layer between a substrate layer and a seal or a peel-seal layer comprising a polyolefin with acid or anhydride, grafted or copolymerized. The tie-layer has a thickness equivalent to 1-7 g/m2. The seal layer comprises a polyolefin. The total thickness of the combination of tie-layer and seal layer is equivalent to 3-20 g/m. This multilayer sheet is prepared by extrusion or coextrusion coating.Type: GrantFiled: September 8, 1999Date of Patent: May 1, 2001Assignee: E. I. du Pont de Nemours and CompanyInventor: Yves Trouilhet
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Patent number: 6217981Abstract: An adhesive sheet is disclosed including a flexible substrate (4), and an adhesive layer (20) formed on at least one of the main surfaces of the flexible substrate and containing elastic microspheres (3), in which the adhesive layer has a) an elastic microsphere layer which is in contact with the main surface of the flexible substrate, comprising elastic microspheres (3) and a tacky polymer (2) and has projections containing said elastic microspheres on a surface which is not in contact with said substrate, and b) a layer of tacky polymer (1) which covers the projections containing the elastic microspheres so that raised portions are formed on an adhesion surface (11). Bubbles of air can then escape during application and use because the adhesion surface has a contact area percentage in the range between 20 and 90%. A method of making the adhesive sheet is also disclosed.Type: GrantFiled: April 15, 1999Date of Patent: April 17, 2001Assignee: 3M Innovative Properties CompanyInventors: Mamoru Kanno, Hidetoshi Abe
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Patent number: 6207593Abstract: Method and apparatus for production of asphalt coated sheets comprising materials highly prone to distortion under heat, including polyester and similarly deformable materials, in a coating machine comprising a mat puller adapted to pull the mat at a selectable rate, a coater, and a metering device. The metering device is optionally adapted to pull the mat at a selectable rate. The mat is pulled through the coater and coated with asphalt heated to 250° F. to 500° F., while the rates at which the mat puller and metering device pull the mat are independently and/or jointly adjusted to such that coated sheet may be produced at rates of more than 200 feet per minute, without wrinkling or necking in the mat.Type: GrantFiled: March 5, 1998Date of Patent: March 27, 2001Inventor: John R. Fields
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Patent number: 6203810Abstract: The present invention relates to breathable perspiration pads such as underarm-, wrist- and head-perspiration pads, collar inserts, and shoe inserts, having a breathable backsheet, and an odor control system. The combination of breathability and the odor control system delivers an improved odor control performance of the perspiration pad.Type: GrantFiled: November 30, 1998Date of Patent: March 20, 2001Assignee: The Procter & Gamble CompanyInventors: Miguel Alemany, Christiane Keirat
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Patent number: 6197155Abstract: A lightweight, coated web printing paper is described for suitability in the cold-set printing process, which has specific values for water penetration and ink absorption and has gloss values in the 40-50% range for a smoothness in the range of 500 sec. Bekk.Type: GrantFiled: October 9, 1998Date of Patent: March 6, 2001Assignee: Haindl Papier GmbHInventors: Hartmut Wurster, Hans-Peter Hofmann
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Patent number: 6180216Abstract: A wiping implement suitable for use as a bath tissue can be formed into sheets, each sheet comprising at least one ply of a paper web having a basis weight of at least about 25 lb/3000 square feet. The sheet can have a width of at least about 4.5 inches and temporary wet tensile properties. The sheet of the present invention can have an area of at least about 30 square inches. In a multiple ply embodiment, the sheet can have an optimized basis weight of at least about 42 lb/3000 square feet while maintaining nearly the same amount of actual total fiber usage per cleaning task as current premium bath tissues.Type: GrantFiled: February 9, 1999Date of Patent: January 30, 2001Assignee: The Procter & Gamble CompanyInventors: Mark John Steinhardt, Michael William Tafuri, Jr., Paul Thomas Weisman, Thomas Hoerner, Bernhard Maier, Paul Dennis Trokhan, Kenneth Douglas Vinson
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Patent number: 6174593Abstract: A separator pad for use in transporting stacked equal-height containers comprised of a liquid and gas impervious polymer film overlying a flexible core fabric. The core fabric preferably has a basis weight from about six to about eleven ounces per square yard, and the overall thickness of the pad preferably is from about 20 to about 40 mils. The polymer film, such as a polypropylene film, is chill rolled with rolls having a polished finish to impart a high friction gloss surface on the separator pad. The gloss-finish separator pad should have an average static coefficient of friction of at least 0.35, and an average kinetic coefficient of friction of at least 0.2. Due to the high friction surface, the separator pad prevents containers such as aluminum cans from falling during transport.Type: GrantFiled: November 23, 1998Date of Patent: January 16, 2001Assignee: Reemay, Inc.Inventor: Gary W. Anderson
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Patent number: 6171695Abstract: Thin absorbent food pads with a bulk under 0.5 cm are provided having an insulation layer and from 3 to 30 sheets of compressed wet resilient cellulosic material wherein the absorbent pad has an absorbent capacity of at least 10 grams fluid per gram absorbent material and which expands in volume by at least 50%, relative to dry volume, upon wetting. The thin absorbent pads may be provided by calendering the insulation layer and cellulosic sheets under a force of about 100 to 1500 pounds per linear inch, thereby reducing the bulk of the pad by 30 to 60% and creating a pad which will significantly expand upon wetting to achieve an aqueous absorbent capacity of about 0.85 grams fluid per square centimeter (5.5 g/square inch).Type: GrantFiled: May 19, 1997Date of Patent: January 9, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Monica Carlise Fontenot, Fung-Jou Chen