Cellulosic Substrate Patents (Class 428/342)
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Patent number: 6132842Abstract: A cushioning product having plural layers of a sheet-like stock material folded upon themselves to form a pillow-like portion. The lateral edges of the outer layer of the stock material are overlapped and connected together to maintain the geometry of the pillow-like portion. The lateral edges of the outer layers are connected together (for example, they are mechanically interlocked) separate from the central portion of the outer layer. The overlapped edges of the outer layer may form a tab portion projecting from the pillow-like portion. Alternatively, the overlapped lateral edges of the outer layer may be generally coplanar with adjacent unoverlapped portions of the outer layer. Preferably, the stock material comprises layers of paper, more preferably biodegradable, recyclable and reusable paper, and even more preferably Kraft paper.Type: GrantFiled: March 16, 1998Date of Patent: October 17, 2000Assignee: Ranpak Corp.Inventors: James A. Simmons, Jr., Edwin P. Beierlorzer
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Patent number: 6132822Abstract: This invention relates to an economical coating composition for porous substrates that provides extremely glossy surfaces, is capable of supporting holographic images, provides good oxygen barrier properties as well as good oil, grease, solvent and water resistance. Said coatings on paper substrates are printable, biodegradable, recyclable, and repulpable. They are also suitable for use in conjunction with food products. This invention also relates to a process for applying said coatings onto porous substrates as well as a process for the economical production of inexpensive holographic images on substrates such as paper and cardboard containers.Type: GrantFiled: September 6, 1996Date of Patent: October 17, 2000Assignee: A*Ware Technologies, L.C.Inventors: Derric T. Overcash, Richard C. Wallace
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Patent number: 6120860Abstract: Multilayer film structures and packages therefrom which are particularly suited for containing organics such as organic liquids or solvents, e.g., amines, diamines, triamines, xylenes, tolene, ethoxyethanols, urethanes, or epoxies, or the like, or materials containing organics are disclosed as are methods for containing such organics. The film structures have two layer elements. The first layer element has a flexible barrier material layer and a sealant layer; the second layer element has a high barrier material layer; and when formed into a package such as a pouch the sealant layer is disposed interiorly and is used to seal the package together. Suitable materials for the high barrier material include metal foil, e.g., aluminum foil, and nylon coated on at least one side with a polyvinylidene chloride copolymer; the flexible barrier material layer is suitably nylon; and, the sealant is preferably ethylene vinyl acetate.Type: GrantFiled: November 25, 1996Date of Patent: September 19, 2000Assignee: American National Can CompanyInventors: William E. Bowen, Lee J. Murray, Jr.
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Patent number: 6120888Abstract: An ink jet printable, saturated hydroentangled fibrous web which includes fibers and a saturant. The fibers include from about 20 to 100 percent by weight, based on the total weight of the fibers, of cellulosic fibers. From 0 to about 70 percent by weight of the fibers may be mercerized cellulosic fibers. From about 80 to 0 percent by weight of the fibers, based on the total weight of the fibers, may be synthetic polymer fibers. The saturant is present in the saturated fibrous web at a level of from about 40 to about 85 percent, based on the dry weight of the fibers. When synthetic polymer fibers are present in the web, the saturant may be adapted to wet synthetic polymer fibers. A second layer which includes a bonded nonwoven web also may be present. Also provided are methods of preparing the ink jet printable, saturated hydroentangled fibrous web.Type: GrantFiled: June 30, 1997Date of Patent: September 19, 2000Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Russell Lynn Dolsey, John Patrick Allison
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Patent number: 6120817Abstract: The present invention is a container for storing fine particles in a sealed packaging, wherein air in the container can be evacuated through compression or vacuum without removing the fine particles. The container comprises a main body enclosing a pouch, terminating in a principal opening, a sealing mechanism attached to the pouch for sealing the pouch, at least one exit port extending through the wall of the pouch, and a porosity mechanism adjacent the exit port, wherein the porosity mechanism permits air to exit through the exit port, but prevents the fine particles from escaping through the exit port.Type: GrantFiled: August 7, 1998Date of Patent: September 19, 2000Assignee: General Mills, Inc.Inventors: William E. Archibald, Rodney K. Gwiazdon, George A. Tuszkiewicz
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Patent number: 6117563Abstract: The object is to provide a moistureproof paper which is excellent in light-screening, moisture-proof, waterproof and heat-sealing properties and regeneration property at the time of reuse as a used paper, and in order to attain the object, a moisture-proof layer (3) of maceration, regeneration and heat-sealing properties is provided on the surface of a coated base (1) having a light-screening layer (2) of a hue of from 25 to 70 in terms of the luminosity index L* to obtain a moisture-proof paper having a light-screening and regeneration properties.Type: GrantFiled: February 9, 1998Date of Patent: September 12, 2000Assignees: Nippon Paper Industries Co., Ltd., Toyo Ink Manufacturing Co., Ltd., San-Mic Chiyoda Co., Ltd.Inventors: Mituyuki Watanabe, Akiko Doujo, Ryoji Ito, Tsutomu Fujigamori, Kiyotaka Kido, Yuji Otake
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Patent number: 6110585Abstract: An ink jet recording element comprising a support having thereon the following layers:a) a cationic mordant for an anionic dye;b) a nonionic or amphoteric material compatible with a) and c);c) colloidal silica; andd) a hydrophilic overcoat in an amount of at least about 0.25 g/m.sup.2 ;wherein either a) or c) can be directly on the support, b) is always between a) and c), and d) is the outermost layer.Type: GrantFiled: December 22, 1998Date of Patent: August 29, 2000Assignee: Eastman Kodak CompanyInventor: Lori J. Shaw-Klein
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Patent number: 6110601Abstract: An ink jet recording element comprising a water-impervious support having thereon the following layers:a) a water-absorbing layer; andb) an image-recording layer comprising a colloidal oxide and a pigment dispersed in a binder, the binder comprising a mixture of poly(ethylene glycol) having a molecular weight of from about 1400 to about 35,000 and poly(vinyl alcohol), the ratio of the poly(ethylene glycol) to the poly(vinyl alcohol) being from about 1:0.8 to about 1:1.5.Type: GrantFiled: December 31, 1998Date of Patent: August 29, 2000Assignee: Eastman Kodak CompanyInventors: Lori J. Shaw-Klein, Richard J. Kapusniak
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Patent number: 6110548Abstract: An extend long life juice carton structure is provided which has low oxygen permeability, is leak free, has minimal flavor loss, and excellent bulge resistance and durability characteristics without sacrificing the ability to skive the side seam or use hydrogen peroxide as a sterilizing substance. The container structure has a polyamide polymer layer, a layer of ethylene vinyl alcohol copolymer with an ethylene comonomer content of 27-32 mole %, and a thin matte side layer polyolefin polymer.Type: GrantFiled: January 22, 1998Date of Patent: August 29, 2000Assignee: International Paper CompanyInventor: Joe L. Kinsey
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Patent number: 6106910Abstract: A print medium having a sense mark comprised of a near infrared fluorescent component which triggers automated operations without interference from printed text or images or the substrate. The near infrared fluorescent pigments are protected from contact with oxygen using a polymer resin. Apparatus for dispensing printed media comprises a print medium of this invention, detector for sensing the mark, a logic element for locating the mark and a paper transporting apparatus controlled by the logic element. The apparatus can be incorporated in business machines such as automatic teller machines, cash registers, ticket dispensing machines and coupon dispensing machines.Type: GrantFiled: September 15, 1998Date of Patent: August 22, 2000Assignee: NCR CorporationInventors: Yaoping Tan, Maurice W. Lewis, Bernard J. Jergens
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Patent number: 6093274Abstract: This invention relates to paperboard composite structures with a glass-coated film. Such structures of this type, generally, improve the shelf life of refrigerated and other oxygen-sensitive products and provide a barrier to flavors and fragrances to maintain product quality.Type: GrantFiled: October 9, 1997Date of Patent: July 25, 2000Assignee: Westvaco CorporationInventors: Christopher Jude Parks, Ralph Scott Peterson
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Patent number: 6093460Abstract: A paperboard material 101 is mainly composed of a paperboard having a weight of 200 to 450 g/m.sup.2, a density of 0.65 to 0.82 and a gas permeability of 50 to 200 sec. A first resin layer having liquid-impermeability and thermal resistance is formed entirely on the surface of the paperboard on the inner side of the receptacle, and a second resin layer having permeability to gas and liquid is formed entirely on the back surface of the paperboard. Radial score lines 117 are formed in the portion corresponding to the corners of the paperboard material 101 toward its outer periphery. The score lines 117 do not reach the outer periphery of the paperboard material 101 but terminate at the position at a distance "a" (1 to 3 mm). The score lines 117 are formed by pressing the paperboard with a pressing die from the side constituting the inner side of the receptacle toward the outer side.Type: GrantFiled: February 23, 1998Date of Patent: July 25, 2000Assignee: Toyo Aluminum Foil Products Kabushiki KaishaInventor: Isao Iwaya
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Patent number: 6085484Abstract: A building structure comprising a paper strip formed into a cylindrical shape by spirally winding the same and securing adjacent opposed portions thereof by means of adhesives. The building structure has a peeling strength of not less than 13.0 kg/cm.sup.2 and a compression strength of not less than 250 kg/cm.sup.2, which can be used for manufacturing interior and exterior walls of buildings in simple steps, rapidly and at a reduced manufacturing cost.Type: GrantFiled: September 10, 1999Date of Patent: July 11, 2000Inventor: Shigeru Ban
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Patent number: 6083580Abstract: A container having walls made of a paper/plastic laminate having a cardboard core sandwiched between inner and outer face liners, wherein at least one of the face liners is comprised of a face liner laminate. The face liner laminate is composed of an exterior ply of oriented synthetic plastic film whose opposing surfaces are rendered wettable by corona-discharge treatment, and a base paper ply is cold-laminated to the film ply and adhered to the core of the board. The cardboard core may be a fluted medium of corrugated paper board, or it may be a planar stiff paper core. The invention is also directed to a structural member for use in making inexpensive furniture comprising a supporting member and a cardboard core laminated to a face liner laminate. The film ply of the laminate enhances the strength of the container or structural member and imparts water resistance thereto. Because the exposed surface of the film ply is printable, it may have decorative graphics or other printed matter applied thereto.Type: GrantFiled: April 20, 1998Date of Patent: July 4, 2000Inventors: Arnold B. Finestone, Gilbert Bloch
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Patent number: 6080453Abstract: A cover for a flower pot, the cover comprising a sheet of material sized to substantially surround and encompass the outer peripheral surface of the flower pot and a fastener comprised of elastic or elasticized materials and forming a generally continuous loop, the fastener connectingly held to either the upper surface or the lower surface of the sheet of material. The fastener can be stretched to an extent sufficient to enable the fastener to be disposed about the outer peripheral surface of the flower pot and to hold the sheet of material applied thereabout. The invention further comprises a method for wrapping a pot with a covering such as described above, and a preformed pot cover having a fastener connected circumferentially to the interior surface of the pot cover.Type: GrantFiled: June 6, 1995Date of Patent: June 27, 2000Assignee: Southpac Trust International, Inc.Inventors: Donald E. Weder, Joseph G. Straeter, William F. Straeter
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Patent number: 6071576Abstract: The disclosure relates to a laminated packaging material (10) comprising a core layer (11) of paper or paperboard and a layer (12) of polyvinyl alcohol serving as oxygen gas barrier on one side of the core layer. In order to avoid excessively large quantities of polyvinyl alcohol on application of the oxygen gas barrier layer (12), a layer (13) is applied which serves as a binder and consists of a mixture of polyvinyl alcohol and a gel-forming substance, for example agar, between the polyvinyl alcohol layer (12) and the core layer (11), with the aid of which excessive penetration of polyvinyl A alcohol into the core layer (11) is effectively counteracted, at the same time as the applied binder layer (13) smoothes and evens out the coarse surface structure of the core layer (11) and forms a smooth substrate for the polyvinyl alcohol layer (12). The quantity of gel-forming substance in the binder layer (13) may amount to between 1 and 20 per cent of the total weight of the mixture.Type: GrantFiled: April 14, 1998Date of Patent: June 6, 2000Assignee: Tetra Laval Holdings & Finance S.A.Inventors: Mats Bentmar, Mikael Berlin
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Patent number: 6068897Abstract: A paperboard-based laminated structure for containers produced by co-extrusion coating or lamination of a polyethylene terephthalate layer as the product contact layer and a unique tie-layer on to paperboard, where the tie-layer is specifically ethylene-ethyl or butyl acrylate copolymer or terpolymer. This paperboard structure provides high temperature end-use performance required in dual-ovenable applications and cost savings.Type: GrantFiled: April 9, 1999Date of Patent: May 30, 2000Assignee: International Paper CompanyInventors: Ashok M. Adur, Thomas Z. Fu
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Patent number: 6066375Abstract: An improved, coated microwaveable paperboard or container useful for forming substantially rigid food containers such as plates, bowls, trays and the like and a process from producing the improved, coated paperboard is provided. The microwaveable paperboard and food containers, at a temperature in excess of 430.degree. F. evolves less than 0.1 milligrams of benzene per square inch, preferably less than 0.04 milligrams. Said paperboard and food containers are produced from a sized paperboard blank wherein a base coat and top coat comprise a mixture of an inorganic pigment and aliphatic copolymers. A base coat comprising an aliphatic latex and a pigment is applied directly to the paperboard, and a top coat comprising the same or different aliphatic polymer latex and a pigment is applied directly to the base coat to form the coated containers. Microwave susceptor layers are coated on the top coat. These containers are used to microwave and brown food at temperatures in excess of 430.degree. F.Type: GrantFiled: April 10, 1997Date of Patent: May 23, 2000Assignee: Fort James CorporationInventor: Kenneth J. Shanton
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Patent number: 6037050Abstract: An ink-jet recording sheet comprises a support, and provided thereon, a void layer containing fine inorganic particles and a hydrophilic binder, the hydrophilic binder having being cross-linked by a hardener.Type: GrantFiled: October 17, 1997Date of Patent: March 14, 2000Assignee: Konica CorporationInventors: Yoichi Saito, Masaru Tsuchiya, Yoshihiro Mochizuki
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Patent number: 6033747Abstract: A laminate including a base material and a copolymer consisting essentially of 3-hydroxybutyrate and 3-hydroxyhexanoate, the copolymer being laminated on at least one side of the base material. A wrapping material including the above laminate. A container made of the above laminate.Type: GrantFiled: October 28, 1997Date of Patent: March 7, 2000Assignee: Kaneka CorporationInventor: Takeshi Shiotani
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Patent number: 6020286Abstract: In a dye-receiving element for thermal dye transfer, with a substrate, a composite foil and a dye-receiving layer, the composite foil contains a thermoplastic core layer exhibiting micropores and, on the side facing the receiving layer, at least two pore-free thermoplastic surface layers, and the substrate is a paper with a density of .ltoreq.0.8 g/cm.sup.3.Type: GrantFiled: July 10, 1997Date of Patent: February 1, 2000Assignee: Felix Schoeller jr. Foto- und Specialpapiere GmbH & Co. KGInventors: Rainer Gumbiowski, Jurgen Graumann, Dieter Becker
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Patent number: 6013359Abstract: A printing paper, especially a newsprint base paper, comprising: a base paper; and a coating layer for improving surface strength of the coated paper and releasing-property when two sheets of the coated paper are stacked, which coating layer is formed on the base paper by using a coating-transcription system such as a gate roll coating system, which coating layer comprises at least either a homopolymer polyacrylamide or a nonionic-copolymer polyacrylamide in a coating weight of from 0.01 g/m.sup.2 to 0.2 g/m.sup.2, wherein the homopolymer polytcrylamide and the nonionic-copolymer polyacrylamide have a weight average molecular weight ranging from 20,000 to 250,000, thereby improving not only surface strength but also releasing-property in a printing paper, especially in a newsprint paper having a basis weight less than 46 gm.sup.2.Type: GrantFiled: December 12, 1996Date of Patent: January 11, 2000Assignees: Nippon Paper Industries Co., Ltd., Seiko Chemical Industry Co., Ltd.Inventors: Toshiyuki Takano, Motoi Fukuda, Toshimi Satake, Masahide Taniguchi
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Patent number: 6010759Abstract: A composite container having a barrier property and comprising a packaging material which comprises an inner surface layer, a barrier layer, and a base material layer wherein the barrier layer comprises one selected from nylon MXD 6 and a semi-aromatic polyamide resin, which is a copolymer comprising an aromatic polyamide forming component and an aliphatic polyamide forming component wherein the aromatic polyamide forming component comprises an aliphatic diamine and isophthalic acid and/or terephthalic acid, and the aliphatic polyamide forming component comprises a lactam or an aliphatic diamine, and an aliphatic dicarboxylic acid. The above packaging material may also comprise an inner surface layer having a barrier property and a base material layer wherein the inner surface layer having a barrier property comprises the above semi-aromatic polyamide resin.Type: GrantFiled: October 7, 1997Date of Patent: January 4, 2000Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kazuki Yamada, Hirotaka Tsunoda, Hideki Kurokawa
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Patent number: 6007902Abstract: A substrate coated with a liquid crystal polymer with an intervening tie layer. A second embodiment provides a surface layer disposed on the LCP layer, sandwiching the LCP layer between the surface layer and the substrate. Methods for constructing the above also is provided.Type: GrantFiled: August 19, 1997Date of Patent: December 28, 1999Assignee: International Paper CompanyInventors: Ashok Adur, Raymond Volpe, Thomas Z. Fu
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Patent number: 5997991Abstract: The present invention proposes light-weight and easy-to-handled deodorizing material that has a large contact area with bad smell-causing gas as well as better deodorizing performance and also that enjoys a smooth circulation of that gas with a lower permeation resistance. A single-faced corrugated fiberboard made of a cellulose-based substance is allowed to contain ferrous sulfate, which is subsequently oxidized into basic ferric sulfate.Type: GrantFiled: August 22, 1997Date of Patent: December 7, 1999Assignee: Kitakamiseishi Kabushiki KaishaInventors: Taro Kato, Shinji Arai
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Patent number: 5989696Abstract: A laminate and a coated web suitable for use as containers exhibiting a static decay of at least 90% in less than 2 seconds while measured at +/-5,000 volts, at 10% relative humidity and 24 hours conditioning is disclosed. The laminate and coated web comprise a paper substrate or a synthetic fiber substrate, a first coating on at least one surface of said paper substrate comprising synthetic hectorite clay and optionally a second coating comprising an organic or inorganic pigment applied over at least one of said coatings. These laminates are useful as antistatic coated paper containers.Type: GrantFiled: February 13, 1996Date of Patent: November 23, 1999Assignee: Fort James CorporationInventors: Donald C. McCarthy, Debra D. Bowers
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Patent number: 5989378Abstract: An ink jet recording material is constituted by a support and a recording layer on the support, in which a plurality of recording layer may be provided. At least one recording layer contains colloidal particles and a water-soluble resin. In order to produce the ink jet recording material, a sticking or adhesive interlayer is provided on a support, and a recording layer including at least one layer is superposed on the interlayer. At least one of the at least one layer of the recording layer contains colloidal particles and a water-soluble resin, and the recording layer is coated and formed on a forming material. Then, the forming material is peeled from said recording layer.Type: GrantFiled: August 21, 1996Date of Patent: November 23, 1999Assignee: New Oji Paper Co., Ltd.Inventors: Bo Liu, Hiroyuki Nemoto, Hideo Ikezawa
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Patent number: 5985424Abstract: The inkjet recording sheet of the present invention comprises a cellulosic sheet support, e.g., paper, having on at least one surface thereof an inkjet coating comprising, in combination, a porous base coat having a high absorption capacity for absorbing the vehicle of an inkjet ink, and an ink receiving coat having a superior capacity for keeping the dyes in the ink on the surface with minimal spreading, tailing or blurring, to provide a sharp image.Type: GrantFiled: February 9, 1998Date of Patent: November 16, 1999Assignee: Westvaco CorporationInventors: Michael L. DeMatte, Sean T. Kelly
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Patent number: 5984989Abstract: A coated abrasive sheet material comprising (a) a backing substrate having at least one major surface, (b) a plurality of abrasive grains, (c) a binder bonding said plurality of abrasive grains to said at least one major surface of the backing substrate, wherein the backing substrate comprises paper having a basis weight of less than about 200 g/m.sup.2 which is essentially free of latex saturants and has on said at least one major surface with the plurality of abrasive grains, one or more extruded layers of a thermoplastic polymer, and a method of making the coated abrasive sheet material.Type: GrantFiled: February 21, 1997Date of Patent: November 16, 1999Assignee: 3M Innovative Properties CompanyInventors: Nigel Davison, Andrew J. Ball
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Patent number: 5981011Abstract: A coated sheet material made by : (a) coating a porous substrate sheet material with a barrier coating composition comprising (i) a cross-linkable polymer resistant to penetration by water moisture, and (ii) a water-dispersible film-forming polymer that is resistant to penetration by grease and oil, said barrier coating composition forming a barrier layer on said substrate sheet material; and (b) coating said barrier layer with a release coating composition wherein the cross-linkable polymer and the water-dispersible film-forming polymer are different. The coated sheet material is useful in forming articles and food wrappers for use in conventional or microwave ovens.Type: GrantFiled: January 5, 1995Date of Patent: November 9, 1999Assignee: A*Ware Technologies, L.C.Inventors: Derric T. Overcash, Ronald L. Elsenbaumer
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Patent number: 5981006Abstract: A coupled spin-draw process for making a fully-oriented nylon yarn including extruding molten nylon polymer with a selected RV through a spinneret and cooling to produce a yarn. The yarn is withdrawn from the quench zone with a feed roll rotating at a speed of at least 4500 mpm. The process further includes cold drawing followed by relaxing the yarn using a steam intermingling jet and then winding up.Type: GrantFiled: March 11, 1997Date of Patent: November 9, 1999Assignee: E.I. du Pont de Nemours and CompanyInventors: Walter John Jaegge, Francis Joseph Malone, Jr., Frank Hudson Overton, Roger Allen Ross, Ronald Edward Steele
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Patent number: 5968647Abstract: A laminate structure for containers produced using an unique extrudable adhesive tie layer which incorporates an antioxidant material. The antioxidant additive provides for the necessary and superior high temperature end-uses and stability of containers made therefrom.Type: GrantFiled: October 1, 1997Date of Patent: October 19, 1999Assignee: International Paper CompanyInventors: Ashok M. Adur, Thomas Z. Fu, Jongsoo Lee
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Patent number: 5968616Abstract: This invention relates to a compound container which can completely be separated into paper and plastics upon abandonment thereof, whose volume can substantially be reduced upon abandonment, which permits the reduction of the amounts of paper and plastics to be used, which exhibits excellent resistance to falling impact, which has a high oxygen gas barrier properties or water vapor barrier properties. This compound container comprises an inner container of a plastic and an outer container of paper or mainly comprising paper, wherein the inner container is produced by blow-molding or stretch blow-molding a resin composition comprising at least two resins including a barrier resin.Type: GrantFiled: September 6, 1995Date of Patent: October 19, 1999Assignee: Toppan Printing Co., Ltd.Inventors: Toshiaki Kakemura, Katsuyuki Ohno, Terutaka Iwasaki, Toshikazu Katoh, Takekuni Seki, Keiko Nakamura
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Patent number: 5962128Abstract: An ink jet recording paper for recording with an ink based on a water-soluble dye having mainly carboxyl groups as hydrophilic functional groups, said recording paper not containing calcium carbonate, and being formed from a base paper comprising kaolin and/or illite as filler and a recording layer provided on at least one side of said base paper comprising a water-absorbing pigment and an aqueous binder as its principal components, the amount of solids in said layer lying in the range 0.5-3.0 g/m.sup.2 on each side of said paper on which said layer is provided.Type: GrantFiled: March 8, 1996Date of Patent: October 5, 1999Assignee: Nippon Paper Industries Co., Ltd.Inventor: Yoshihiro Kuroyama
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Patent number: 5962124Abstract: Disclosed herein is a recording medium comprising an alumina hydrate having an average pore radius of 20 to 200 .ANG. and a half breadth of pore radius distribution of 20 to 150 .ANG..Type: GrantFiled: February 11, 1997Date of Patent: October 5, 1999Assignee: Canon Kabushiki KaishaInventors: Hitoshi Yoshino, Kyo Miura, Yuji Kondo
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Patent number: 5962110Abstract: Transfer images or decalcomania pictures, and method of producing the transfer images or pictures.Type: GrantFiled: March 5, 1997Date of Patent: October 5, 1999Assignee: Heyne & Penke GmbH & Co.Inventor: Hans-Peter Penke-Wevelhoff
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Patent number: 5958579Abstract: An ink jet recording sheet to be used for a high speed rotary ink jet printing system employing an auxiliary drying device of a dielectric heating type, said sheet comprising a support and a cationic resin attached to the support.Type: GrantFiled: May 29, 1996Date of Patent: September 28, 1999Assignee: Mitsubishi Paper Mills LimitedInventors: Koji Idei, Yoshihiko Hibino, Junichi Soga
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Patent number: 5952091Abstract: A web printing paper, including a coating base paper which contains mineral filler and at least one of wood pulp and cellulose as fiber components. The coating base paper has a grammage of 30 to <58 g/m.sup.2, and a filler content, relative to its grammage, equal to 15 to 35% by weight. The coating base paper selectively contains, in addition to the at least one of wood pulp and cellulose, up to <50% by weight recycled fibers, all weight parts adding up to 100% by weight. The printing paper further includes a coating applied to both sides of the base paper by a film press so as to absorb printing ink. The coating contains pigment and binder. The coating on each side of the base paper has a grammage of 2 to 12 g/m.sup.2, and the pigment of the coating has a grain size, 40 to 60% by weight, of <2 .mu.m.Type: GrantFiled: September 30, 1996Date of Patent: September 14, 1999Assignee: Stora Feldmuhle AGInventors: Dieter Horand, Adam Gurtler, Bernd Pelech, Paul-Heinz Dahling
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Patent number: 5952068Abstract: A single walled container for storing hot or cold foods or liquids having a layer of insulation comprised of void containing particles held together with a binder applied to the outer part of the sidewall. The insulation layer provides a controlled amount of insulation which is sufficient to prevent pain to the fingers yet it transmits sufficient heat to warn the user of the temperature of the container's contents. The binder may be any thermoplastic or thermoset resin, and other ingredients may be added to the binder to control viscosity, density, or color.Type: GrantFiled: June 14, 1996Date of Patent: September 14, 1999Assignee: Insulation Dimension CorporationInventors: Douglas L. Neale, Richard J. Pasin
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Patent number: 5945198Abstract: A coating for providing a cover sheet used in the manufacture of wallboard with a light colored finish without the use of manila top plies is disclosed. The coating has a porosity adapted to allow evaporation of moisture from the wallboard core through the cover sheet, and maintain a desired smooth appearance. A high pigment-to-binder ratio is used to provide porosity, with soy protein being added to further enhance the porosity of the coating. The coating may be applied through various conventional methods of coating paper such as roll, spray, curtain, rod and vacuum.Type: GrantFiled: September 12, 1997Date of Patent: August 31, 1999Assignee: United States Gypsum CompanyInventors: Subhash S. Deodhar, Thomas M. Haugeberg, Claudia B. Hill, Thomas G. Houman, Robert H. Negri
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Patent number: 5942295Abstract: A laminate structure for containers produced using product contact materials including polyethylene isophthalate, poly(1,4-cyclohexanyl dimethylene terephthalate) and blends thereof. The unique paperboard structure provides cost savings and high temperature end-use performance required in dual-ovenable containers.Type: GrantFiled: October 1, 1997Date of Patent: August 24, 1999Assignee: International Paper Co.Inventors: Ashok M. Adur, Thomas Z. Fu, Jongsoo Lee
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Patent number: 5935664Abstract: Packaging material prepared from a paper or paperboard substrate which includes a layer of moisture barrier material is made resistant to loss of its moisture barrier characteristics when the packaging material is scored and bent during any converting operation by the addition of a layer of flexible primer material located between the paper or paperboard substrate and the moisture barrier layer.Type: GrantFiled: October 22, 1997Date of Patent: August 10, 1999Assignee: Westvaco CorporationInventors: Robinson C. Claytor, Mohan Sasthav
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Patent number: 5925446Abstract: Electrophotographic transfer paper having a coating layer provided on at least one surface of base paper and pigments and adhesive agents as main components, wherein resistivity (VR) and surface resistivity (SV) of electrophotographic transfer paper after the humidity has adjusted to 10.degree. C., 30% RH for 12 hours satisfy the expression Log(VR/SR).ltoreq.1.5. Using such electrophotographic transfer paper, occurrence of discharge mark and occurrence of density irregularity in a high-density image region are prevented to thereby make it possible to provide electrophotographic transfer paper excellent in fixing characteristic, nonshowthrough, partial deletion and generation of paper dust.Type: GrantFiled: December 15, 1995Date of Patent: July 20, 1999Assignees: Fuji Xerox Co., Ltd., New Oji Paper Co., Ltd.Inventors: Tsukasa Matsuda, Kunio Sakurai, Masaru Kato, Harumi Watanabe
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Patent number: 5922457Abstract: The matte finished coated paper is a paper web having a smoothness of 0.5 to 20 seconds, when measured pursuant to JIS P8119, and a surface roughness Ra of 3.2 to 7.0 .mu.m, when measured pursuant to JIS B0601, provided with a surface coating on at least one side containing polyolefin resin particles, an adhesive and a pigment. The pigment includes porous particles of organic pigment material and calcium carbonate particles. The porous particles of organic pigment material have an oil absorbancy of 80 to 400 ml/100 g when measured pursuant to JIS K5101, each calcium carbonate particle has an average particle diameter of 1.0 to 10 .mu.m and each polyolefin resin particle has an average diameter of 8 to 30 .mu.m. The surface coating has a degree of gloss in a range of from 1 to 10%, when measured pursuant to JIS P8142 at 75.degree. C., a smoothness in a range of from 1 to 25 seconds, when measured pursuant to JIS P8119, and a surface roughness Ra in a range of from 2.0 .mu.m to 6.0 .mu.Type: GrantFiled: October 23, 1997Date of Patent: July 13, 1999Assignee: Oji Paper Co., Ltd.Inventors: Kenji Yanagisawa, Syunichi Uchimura, Terunobu Fukui
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Patent number: 5919534Abstract: A vented food casing having a plurality of die cut vent openings which are uniform and free-draining so as to provide the casing with a vent rate for air and liquids such as meat juices which is substantially constant around the periphery of the casing. The vent opening being formed by a die cutting operation by drawing flattened casing between rollers, one of which has made punches that mate with female die openings on another roller.Type: GrantFiled: November 27, 1996Date of Patent: July 6, 1999Assignee: Viskase CorporationInventor: Jeffery Allen Oxley
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Patent number: 5919558Abstract: The inkjet recording sheet of the present invention comprises a cellulosic sheet support, e.g., paper, bearing on at least one surface thereof an inkjet coating comprising one or more water soluble binders for fixing the images printed with inkjet inks and one or more pigment components having high absorption capacity for absorbing the vehicle of the inkjet inks at a pigment to binder ratio of about 10 to 1.Type: GrantFiled: April 7, 1997Date of Patent: July 6, 1999Assignee: Westvaco CorporationInventor: Hung-Tai Chao
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Patent number: 5916673Abstract: A recording sheet for ink jet printing comprising a support having coated onto said support one or more layers receptive for aqueous inks, said coating comprising at least one film forming, hydrophilic polymer or a mixture of film forming hydrophilic polymers and imbedded in this film at least one trivalent salt of a metal of the Group IIIb series of the periodic table of elements or complexes which comprise trivalent ions of the metals of Group IIIb of the periodic table of the elements. In another embodiment the salts or complexes of Group IIIb elements are coated directly on the substrate surface without the presence of the film forming polymer.Type: GrantFiled: July 31, 1997Date of Patent: June 29, 1999Assignee: Ilford AGInventors: Mario Fryberg, Roland Kurzen, Klaus Haarmann, Diane L. Blednick, Daniel R. Rogers
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Patent number: 5912058Abstract: Sheets of laminated paper are stacked and made into air-tight flat bags with air inlets. After air is supplied into the bags, the air inlets are air-tightly closed to form shock absorbers 50 encapsulating the air. The laminated paper is made by stacking on a paper base a water-soluble polyvinyl alcoholic layer, having a saponification of 80 to 90 mol % and a degree of polymerization of 500 to 2500, to a total thickness of 90 .mu.m or less and a gas permeability of 800 thousand seconds per 100 ml or more. The air is introduced into flat bags 51 to 50 to 80% of maximum inflation to ensure their shock absorbing function. A package 100 is made by putting an appropriate number of discrete shock absorbers 50, or a continuous series of shock absorbers 50, in gaps between a casing 10 and the package content 70. The shock absorbers 50 need not be spread all over the entire surface of the package, so long as they are sufficient to provide the needed contact area to ensure a maximum static load of 0.07 kgf/cm.sup.Type: GrantFiled: March 26, 1997Date of Patent: June 15, 1999Assignee: Hitachi Electronic Services Co., Ltd.Inventors: Jiro Takahashi, Itsuku Ohtawa, Norikazu Yamagishi, Tadayuki Ichiba, Mutsuharu Takesada, Akira Aoyama, Tsuyoshi Mizutani
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Patent number: 5908728Abstract: A recording paper formed mainly from a fibrous material with a cationic substance applied onto the surface thereof or impregnated therein contains a non-wood fiber at least. An image forming method comprises forming an image on the recording paper by the steps of developing an electrostatic image on a photosensitive member by a developing means with a toner, transferring the developed toner image from the photosensitive member onto the recording paper, and fixing the transferred toner image on the recording paper. An image forming method comprises forming an image on the recording paper by ink-jet recording by applying, onto the recording paper, droplets of an ink containing at least an acid dye and/or a direct dye, water, and a water-soluble solvent.Type: GrantFiled: October 26, 1995Date of Patent: June 1, 1999Assignee: Canon Kabushiki KaishaInventors: Mamoru Sakaki, Masato Katayama, Mifune Hirose
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Patent number: RE36303Abstract: The present invention provides an ink jet recording sheet which includes a support and an ink-receiving layer coated on at least one side of the support wherein the ink-receiving layer contains a coating composition containing a quaternary salt of dimethylamine.multidot.epichlorohydrin adduct represented by the following formula (1): ##STR1## wherein n shows a polymerization degree and is a positive number in the range of 2 to 2000. The ink-receiving layer may additionally contain a (meth)acrylamide-diallylamine copolymer for further effectively inhibiting the color degradation of the image.Type: GrantFiled: June 6, 1997Date of Patent: September 14, 1999Assignee: Mitsubishi Paper Mills LimitedInventors: Susumu Ogawa, Hideaki Senoh, Kouji Idei