Cellulosic Substrate Patents (Class 428/342)
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Patent number: 5894040Abstract: Pulp prepared from post-consumer used or recycled paper may be employed in the preparation of substrates which are blended with a vapor phase corrosion inhibitor for preparation and fabrication of packaging enclosures or containers. The present invention permits substrates prepared in this fashion to be employed in such applications for which they are rendered highly suitable. Because of the unknown history of the post-consumer recycled materials forming the pulp, the utility of enclosures and/or packages prepared from such pulp is expanded. Vapor phase corrosion inhibitors useful in the present invention preferably include quantities of amine salts, alkali metal molybdates, including ammonium molybdates, or mixtures of molybdates with a second component such as benzotriazole.Type: GrantFiled: May 30, 1996Date of Patent: April 13, 1999Assignee: Cortec CorporationInventors: Joseph M. Foley, Barry Rudman
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Patent number: 5888626Abstract: This invention describes two products both with a plain, fine textured, nonperforated surface visual consisting of a fiberboard substrate with or without a laminated porous nonwoven scrim and then a finished painted surface. The finish painted surface decorates or finishes the board, but most important, must remain acoustically transparent to retain the sound absorption properties of the fiberboard prior to painting. The fiberboard substrate is made to be porous or modified with hole perforations to cause it to be a good sound absorber. If the fiberboard substrate is sufficiently porous without hole perforations, then the sprayable, high solids, porous paint can be directly applied. If hole perforations are used to improve the sound absorption properties of the board substrate, then a porous, nonwoven scrim is attached and painted using the same high solids porous paint.Type: GrantFiled: January 27, 1997Date of Patent: March 30, 1999Assignee: Armstrong World Industries, Inc.Inventor: Darryl L. Sensenig
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Patent number: 5882754Abstract: Provided is a cast-coated pressure-sensitive adhesive sheet which hardly causes a curling trouble after ink jet recording which comprises a cast-coated recording paper, a pressure-sensitive adhesive layer and a release coated paper laminated via the pressure-sensitive adhesive layer on the side opposite to the recording layer, with the adhesive sheet having a difference between the two characteristic values (A) and (B) within the range of 0.00 to 0.10%, expressed in absolute value, wherein the characteristic value (A) is an irreversible shrinkage factor of the cast-coated recording paper in the CD direction determined under an environment that the relative humidity thereof is raised to 90% from 35% and then lowered to 35% and the characteristic value (B) is a shrinking rate of the release coated paper in the CD direction determined under a condition that the relaltive humidity of the environment is changed from 75% to 60% in the course of lowering the relative humidity from 90% to 35%.Type: GrantFiled: May 9, 1997Date of Patent: March 16, 1999Assignee: Nippon Paper Industries Co., Ltd.Inventors: Yoshihiro Kuroyama, Tomonobu Ohmura, Takashi Ueno, Yoichi Yamazaki, Eiki Kobayashi
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Patent number: 5882746Abstract: A laminated paperboard package is produced by initially printing graphics by high speed printing on a sheet of clay-coated publication paper. The printed paper is then continuously applied to a surface of cellulosic substrate and bonded to the substrate, preferably through use of starch as an adhesive, to provide a laminated product. The laminated product is then die cut to the desired shape, folded and glued into the configuration of a box or container. A layer of water absorbent, cellulosic fiber material can be bonded to the inner surface of the substrate to prevent moisture from the contained product from seeping outwardly through the substrate to the printed paper.Type: GrantFiled: December 28, 1995Date of Patent: March 16, 1999Assignee: Hoffman Environmental Systems, Inc.Inventor: Roger P. Hoffman
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Patent number: 5879765Abstract: This invention provides a thin metallic sheet structure having excellent sound damping characteristics which can lower the sound pressure level of a sound inherent to a thin metallic sheet structure when this structure is patted, and can quickly damp the sound by a simple structure. In a flat sheet-like or box-like structure comprising a thin metallic external sheet and beams for reinforcing the external sheet, a thin metallic sheet structure having excellent sound damping characteristics according to the present invention employs the construction wherein the reinforcing beams 2 are brought into contact with one of the surfaces of the thin metallic external sheet 1 through a sound damping sheet 3, and the coupling state between the sound damping sheet 3 and the thin metallic external plate 1 or the reinforcing beams 2 is a non-coupling state or a discrete coupling state on at least one of the surfaces of the sound damping sheet 3.Type: GrantFiled: April 21, 1997Date of Patent: March 9, 1999Assignee: Nippon Steel CorporationInventors: Seiichi Marumoto, Tatsuya Sakiyama, Yukihisa Kuriyama
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Patent number: 5876815Abstract: A laminate product having both improved grease, oil, wax and solvent repellency and improved glueability and printability properties. The laminate comprises a substrate, at least one layer of a fluorine containing polymer moiety on at least one surface of the substrate and at least one layer comprising a latex on the at least one layer of a fluorine containing polymer moiety layer. Preferably there are more than one fluorine containing polymer moiety layers. Preferably there are more than one layers comprising a latex. A container is constructed from the said laminate. A process for decreasing the contact angle of grease, oil, wax and solvent involving applying the layers to a substrate.Type: GrantFiled: January 25, 1996Date of Patent: March 2, 1999Assignee: James River Corporation of VirginiaInventors: Erland R. Sandstrom, Kenneth John Shanton, Timothy Paul Hartjes, Dean Patrick Swoboda
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Patent number: 5874161Abstract: This invention describes two products both with a plain, nonperforated surface visual consisting of a fiberboard substrate with or without a laminated porous nonwoven scrim and then a finished painted surface. The finish painted surface decorates or finishes the board, but most important, must remain acoustically transparent to retain the sound absorption properties of the fiberboard prior to painting. The fiberboard substrate is made to be porous or modified with hole perforations to cause it to be a good sound absorber. If the fiberboard substrate is sufficiently porous without hole perforations, then the sprayable, high solids, porous paint can be directly applied. If hole perforations are used to improve the sound absorption properties of the board substrate, then a porous, nonwoven scrim is attached and painted using the same high solids porous paint. This painted scrim must be sufficiently optically opaque to hide the hole punched board, yet sufficiently open to render it acoustically transparent.Type: GrantFiled: November 9, 1995Date of Patent: February 23, 1999Assignee: Armstrong World Industries, Inc.Inventors: James D. Pape, Darryl L. Sensenig
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Patent number: 5868309Abstract: A paperboard container and method of forming such container having a rolled brim is disclosed. The container being formed of a paperboard material having a caliper of at least approximately 0.007 inches, a rolled brim arc length of less than about 0.25 inches, an outer radius of curvature of the container cut through the plane normal to the axis of the rolled brim arc length adjacent the rolled brim being less than approximately 1.5 inches with the paperboard material forming the container having at least approximately 8 lbs/3,000 ft.sup.2 ream of size press adhesive included therein and preferably approximately 13 lbs/3,000 ft.sup.2 ream of paperboard material. One particular container includes dimensions wherein the outer radius of curvature of the container cut through the plane normal to the axis of the rolled brim arc length adjacent the rolled brim is approximately 1.Type: GrantFiled: July 26, 1996Date of Patent: February 9, 1999Assignee: Fort James CorporationInventors: Erland R. Sandstrom, Kenneth John Shanton, Timothy Paul Hartjes
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Patent number: 5866221Abstract: A serrated cutting strip (26) for a carton comprises paper or board impregnated with a mix of acrylic resin and urea formaldehyde. The strip is 0.2 to 0.5 mm in thickness and can bend without cracking over a bar of 20 mm diameter. The strip has adhesive on one side and a release sheet (28) on the adhesive. The strip is applied to a carton by apparatus (10) which comprises rollers (44,45) for advancing a substrate sheet (24), a cutter (12) and means (44,45) for drawing a release sheet (28) away from the edge (46).Type: GrantFiled: March 18, 1997Date of Patent: February 2, 1999Assignee: Carton Edge LimitedInventors: Edwin Wyn Owen, Ian Jamie
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Patent number: 5863648Abstract: Provided is a cast-coated paper suitable for ink jet recording which is produced in a process comprising a step of coating at least one side of a base paper with a coating composition comprising a pigment and a water base binder and a step of pressing the coated layer against a heated specular metal surface while the coated layer is in a wet condition; with the pigment comprising a synthetic silica having a BET specific surface area of 200-600 m.sup.2 /g in a proportion of at least 40 weight %, and with the water base binder comprising an hydrophilic urethane resin and casein in a mixing ratio of from 0.1 to 20 by weight.Type: GrantFiled: December 4, 1996Date of Patent: January 26, 1999Assignee: Nippon Paper Industries Co., Ltd.Inventors: Tomonobu Ohmura, Teruhisa Shimada, Takashi Ueno, Shunichi Teramasa, Yoshihiro Kuroyama
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Patent number: 5858487Abstract: According to the present invention a non-stick, microwaveable food wrap for crispening and browning of food is provided comprising a non-stick layer; a polymeric film layer; an unperforated susceptor layer; an adhesive layer; a paper layer and optionally containing at least one encapsulated flavor and/or fragrance incorporated into the laminated non-stick microwaveable food wrap and freshly released by microwave heating into the food item while being cooked, browned and crispened.Type: GrantFiled: April 9, 1996Date of Patent: January 12, 1999Assignees: Joseph J. Funicelli, William L. BoehlerInventors: William L. Boehler, Joseph J. Funicelli
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Patent number: 5855973Abstract: This invention relates to paperboard packages or cartons suitable for distributing, marketing and heating prepared food products. Such structures of this type, generally, include a coating which is mass stable below 400.degree. F., has chloroform-soluble extractives not exceeding 0.5 mg/in..sup.2 of a food contact surface when exposed to a food simulating solvent of 150.degree. F. for two hours and is flexible enough to withstand conventional scoring in a cross-direction with a 2 point male rule and a 0.062 inch channel while sustaining a crack length ratio of no greater than 0.1 and exhibits resistance to blocking when stacked under a load at ambient conditions of 0.5 lbs/sq. in or greater.Type: GrantFiled: August 25, 1997Date of Patent: January 5, 1999Assignee: Westvaco CorporationInventors: Barry Gene Calvert, Jack Ronald Hornsby
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Patent number: 5853899Abstract: Provided is a receiving medium comprising a substrate and an ink receiving layer provided thereon, said ink receiving layer comprising a blend of an ethylene vinylacetate copolymer and a hydrolyzed polyvinyl alcohol. The ink receiving layer preferably further comprises a solid particulate such as silica or calcium silicate. Also provided is a process for providing a water resistant ink jet print by attaching droplets of a recording liquid on a recording medium, said recording medium comprising an ink receiving layer provided on a substrate with the ink receiving layer comprising a blend of an ethylene vinylacetate copolymer and a hydrolyzed polyvinylalcohol.Type: GrantFiled: November 4, 1996Date of Patent: December 29, 1998Assignee: Rexam Graphics Inc.Inventors: Brian L. Anderson, Brenda M. Warren
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Patent number: 5853870Abstract: The coated paper provided by this invention is a high-quality both-side coated paper for use of printing which is finished by a high-temperature calender above 100.degree. C. and excellent in gloss, print gloss, smoothness, ink receptivity, and stiffness.The both-side coated paper for use of printing according to this invention has the characteristics that after the finish, the paper density is 1.15.about.1.35 g/cm.sup.3, the gloss of coated paper surface is higher than 75%, the smoothness is lower than 20 mmHg, and further the mean value L of Clark free protruding lengths in the machine and cross directions measured pursuant to JIS P8143 A can satisfy the following equation (1) below:L>1.28X+45 (1),whereL=Mean value of Clark free protruding lengths in the machine and cross directions (mm), andX=Product basis weight (g/m.sup.2), andthat the outermost coating layer on both sides of said coated paper contains the kaolin as a pigment whose average particle diameter is 0.5.about.1.0 .mu.Type: GrantFiled: June 24, 1997Date of Patent: December 29, 1998Assignee: Oji Paper Co., Ltd.Inventors: Shunichi Uchimura, Hideyuki Suzuki, Terunobu Fukui
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Patent number: 5851651Abstract: 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 a co-binder system of water soluble and water insoluble binders which are cross-linked during the coating drying process for fixing the images printed with inkjet inks, and a combination of pigment components having a high absorption capacity for absorbing the vehicle of the inkjet inks.Type: GrantFiled: April 7, 1997Date of Patent: December 22, 1998Assignee: Westvaco CorporationInventor: Hung-Tai Chao
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Patent number: 5851613Abstract: An essentially homogeneous, water-resistant, water-absorbent rod, containing a cohesive spiral winding of water-resistant, water-absorbent sheet material, in which the rod can absorb at least 50% by weight of water when placed in water at 23.degree. C. for one minute. Methods for fabricating and using this rod are also described.Type: GrantFiled: March 3, 1997Date of Patent: December 22, 1998Assignee: Brandeis UniversityInventor: Daniel Perlman
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Patent number: 5851652Abstract: Rutile TiO.sub.2 pigment particles bearing coatings comprising:(a) an inner layer comprising about 0.05-1 percent by weight, based on the weight of the TiO.sub.2, of cerium radicals and about a stoichiometric amount of phosphate radicals, based on the amount of cesium radicals,(b) a second layer of about 0.1-4 percent by weight, based on the weight of the TiO.sub.2, of amorphous silica, and optionally(c) an outer layer of (1) about 0.5 to 8 percent by weight, based on the weight of the TiO.sub.2, of hydrous alumina or (2) hydrous alumina in the amount of about 0.5-8 percent, based on the weight of the TiO.sub.2, and associated therewith up to about a stoichiometric amount of phosphate radicals needed to form aluminum phosphate,the combined total weight of said coatings being about 2 to 12 percent by weight, based on the weight of the TiO.sub.2.Type: GrantFiled: August 22, 1996Date of Patent: December 22, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Howard W. Jacobson, Andrew A. Feng
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Patent number: 5851608Abstract: A paper container for a liquid including a base material including: a paper layer, a polyolefin type resin layer disposed on one side of the paper layer, for providing an outer surface, and a saturated polyester resin layer disposed on the other side of the paper layer by the medium of a polyolefin type resin layer, for providing an inner surface; the paper container being formed from the base material so that the polyolefin type resin layer for providing the outer surface provides an outer peripheral surface of the container, wherein the saturated polyester resin layer for providing the inner surface comprises an amorphous or low crystallinity saturated polyester resin having a glass transition point of not lower than 40.degree. C., and a portion of the base material to be disposed on the inner side of the paper container with respect to the paper layer has a water vapor permeability of not higher than 25 g/m.sup.2 .multidot.24 hr.multidot.1 atm.Type: GrantFiled: March 18, 1994Date of Patent: December 22, 1998Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kazuki Yamada, Hirotaka Tsunoda
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Patent number: 5849374Abstract: A compostable multilayer structure in the form of a film, sheet, laminate, and the like, which comprises a core layer having a first surface and a second surface, a first blocking reducing layer covering the first surface of the core layer, and a second blocking reducing layer covering the second surface of the core layer. The core layer contains a lactic acid residue-containing polymer and has a glass transition temperature (T.sub.g) below about 20.degree. C. The first and second blocking reducing layers include a polymer composition of a hydrolyzable polymer and have a T.sub.g above about 50.degree. C. The multilayer structure can be used for preparing bags and wrappers.Type: GrantFiled: September 28, 1995Date of Patent: December 15, 1998Assignee: Cargill, IncorporatedInventors: Patrick R. Gruber, Jeffrey John Kolstad, James Lunt, Christopher M. Ryan, Ali Zakareya El-Afandi, James Nangeroni, Nancy Uzelac Buehler, Mark Hartmann, Jed Richard Randall, Andrea Lee Brosch
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Patent number: 5849401Abstract: A compostable multilayer film includes a core layer having a first surface and a second surface, a first blocking reducing layer covering the first surface of the core layer, and a second blocking reducing core layer comprises a lactic acid residue-containing polymer having a glass transition temperature (Tg) below 20.degree. C. The first and second blocking reducing layers comprise a semicrystalline aliphatic polyester. The hydrolyzable polymer and have a T.sub.g above about 50.degree. C. The multilayer structure can be used for preparing bags and wrappers.Type: GrantFiled: May 3, 1996Date of Patent: December 15, 1998Assignee: Cargill, IncorporatedInventors: Ali Zakareya El-Afandi, Patrick Richard Gruber, Jeffrey John Kolstad, James Lunt, Christopher M. Ryan, James Zakareya Nangeroni, Nancy Uzelac Buehler, Mark Hartmann, Jed Richard Randall, Andrea Lee Brosch
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Patent number: 5846647Abstract: 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 10, 1997Date of Patent: December 8, 1998Assignee: Canon Kabushiki KaishaInventors: Hitoshi Yoshino, Kyo Miura, Yuji Kondo
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Patent number: 5846619Abstract: A method of manufacturing multi-ply tubular containers for food products is provided including the steps of advancing a continuous body ply formed of paperboard towards a shaping mandrel and advancing a continuous polymeric liner ply adjacent to one surface of the paperboard body ply. The polymeric liner ply includes a moisture barrier layer and an adhesive layer defining one surface of the liner ply, wherein the adhesive layer includes a polymeric adhesive which is activated at a predetermined activation temperature. The body ply is heated to a temperature above the activation temperature of the adhesive, and the body ply and the liner ply are then passed in face-to-face contact through a nip to adhere the liner ply to the body ply. The body ply and liner ply are then wrapped around a shaping mandrel to create the tubular container.Type: GrantFiled: February 6, 1997Date of Patent: December 8, 1998Assignee: Sonoco Products CompanyInventors: Glenda J. Cahill, W. Gerald Gainey
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Patent number: 5843572Abstract: Provided is an ink jet recording paper having an ink receiving layer comprising a high absorption pigment and a binder provided on at least one side of a base paper comprising wood pulp and a filler, with the ink receiving layer having a coverage rate of from 0.5 to 5.0 g/m.sup.2 per side of the base paper and a contact angle of from 80 to 100 degrees measured using a liquid having a surface tension of 40 dyne/cm.Type: GrantFiled: April 5, 1996Date of Patent: December 1, 1998Assignee: Nippon Paper Industries Company, Ltd.Inventors: Tsuyoshi Yasuda, Yoshio Yoshida, Norio Fukushima, Michiko Okamoto, Yoshihiro Kuroyama
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Patent number: 5817384Abstract: The present invention provides a laminated material comprising a paper as a substrate, which is superior in heat resistance and gas barrier properties, and a paper pack container formed from said laminated material. Disclosed is a laminated material comprising at least a paper layer as a substrate and a layer of a liquid crystal polyester resin composition containing 56 to 99% by weight of a liquid crystal polyester (A) and 44 to 1% by weight of an epoxy group-containing ethylene copolymer consisting of the following components:(a) 50 to 99.9% by weight of an ethylene unit;(b) 0.1 to 30% by weight of an unsaturated carboxylic acid glycidyl ester unit or an unsaturated glycidyl ether unit; and(c) 0 to 49.9% by weight of an ethylenically unsaturated ester compound, the paper layer and the layer of the liquid polyester resin composition being laminated each other. A paper pack container formed from said laminated material is also disclosed.Type: GrantFiled: September 11, 1996Date of Patent: October 6, 1998Assignee: Sumitomo Chemical Company, LimitedInventors: Motonobu Furuta, Takanari Yamaguchi
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Patent number: 5811169Abstract: The front surface of a wooden overlay sheet, having a wooden material on the front surface thereof, is subjected to a color treatment with a colorant comprising a primer resin; the wooden overlay sheet, which was subjected to color treatment, is positioned in a metal mold for molding, and a transparent resin layer is molded on the front surface thereof by means of injection-molding. Furthermore, a synthetic resin core material is molded on the rear surface of the wooden overlay sheet. A composite molded article is thereby produced, wherein a synthetic resin core material is molded on the rear surface of the wooden overlay material, and a transparent resin layer is molded on the front surface of the wooden overlay sheet. Thus, the present invention enables the enhancement of the outer appearance of the product and the enhancement of the adhesion of the wooden overlay sheet and the transparent resin layer.Type: GrantFiled: April 2, 1996Date of Patent: September 22, 1998Assignee: Yamaha CorporationInventors: Hisayoshi Ohsumi, Takeshi Matsumoto, Shinji Kato, Mitsuo Ishizuka, Shoichi Kaneko
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Patent number: 5810243Abstract: A paperboard polymer coated carton having protected board raw edge surfaces for packaging food and non-food products is provided in which a thin slice of the inside carton raw edge surface is removed or skived away from the side seam flap. The thin slice includes all of the inside polymer layers and most of the paperboard. The resulting outside flap is folded into the carton inside over the paperboard raw edge surface, and is flame sealed to the inside polar polymer layer, to seal the paperboard raw edge surface. The sealed edge surface is then flame sealed to the inside of the opposite paperboard surface, thereby creating an additional inside-outside flame seal. By such a process only inside-outside seals are formed or polar-covalent seals.Type: GrantFiled: April 15, 1997Date of Patent: September 22, 1998Assignee: International Paper CompanyInventors: John M. DiPinto, Gerald A. Marano, Edward Bombolevich, Charles E. Gibbons
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Patent number: 5807781Abstract: A release base paper having silicate-containing primer coats based on potassium or sodium waterglass, due to which the penetration of subsequent coatings comprising aqueous, solvent-containing or solvent-free silicone systems into the texture of the paper is decreased and a reduction in the silicone requirement in order to achieve predetermined release forces is thereby achieved.Type: GrantFiled: July 19, 1995Date of Patent: September 15, 1998Assignee: Kammerer GmbHInventors: Bernd Reinhardt, Volker Viehmeyer, Michael Hottentrager
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Patent number: 5804284Abstract: The invention provides a continuous paperboard sheet adapted to be slit longitudinally into a plurality of continuous paperboard plies, and to improved paperboard plies for forming single-layer, paperboard tubes. The paperboard sheet has a substantially constant width and includes a plurality of thick longitudinal sections and a plurality of thin longitudinal sections. The thick and thin sections are arranged in alternating relation across the width of the paperboard sheet. The sheet is slit longitudinally along the thin sections to provide a plurality of tube-forming paperboard plies.Type: GrantFiled: May 9, 1996Date of Patent: September 8, 1998Assignee: Sonoco Products Company, Inc.Inventors: George E. Lennon, Jerry S. Hall, Kevin R. Merritt, Henry L. King
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Patent number: 5804293Abstract: Printed matter of high optical density may be obtained by ink-jet printing techniques when the coating contains composite particulate amorphous precipitated silica having a calculated multimodal particle size distribution wherein the particle sizes at the modes are less than 10 micrometers.Type: GrantFiled: December 8, 1995Date of Patent: September 8, 1998Assignee: PPG Industries, Inc.Inventors: Louis J. Nehmsmann, George E. Alderfer, Charles T. Hill
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Patent number: 5800901Abstract: A packing paper for baker's yeast, which is constituted by laminating, on one side of a base paper, at least a printing layer and a wax layer in this order and which has a carbon dioxide permeability of 400-2,000 cm.sup.3 /m.sup.2 .multidot.24 h.multidot.atm., an oxygen permeability of 100-600 cm.sup.3 /m.sup.2 .multidot.24 h.multidot.atm. and a moisture permeability of 50 g/m.sup.2 .multidot.24 h or less.Type: GrantFiled: August 5, 1996Date of Patent: September 1, 1998Assignees: Oriental Yeast Co., Ltd., Nikkan Industries Co., Ltd.Inventors: Tsuguo Karasawa, Masayuki Takahashi, Masami Miyamoto, Itaru Takayama
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Patent number: 5798173Abstract: Disclosed is an ink jet recording sheet which contains in a support and/or in a layer coated on the support a polyvinylamine copolymer obtained from a copolymer of N-vinylformamide and acrylonitrile and having a molecular weight of 50000 or more and containing 20 mol % or more of a vinylamine residue or an ink jet recording sheet comprising a support and an ink-receiving layer provided on the support wherein the composition of the ink-receiving layer contains said polyvinylamine copolymer and ultrafine inorganic pigment having a primary particle size of 100 nm or smaller.Type: GrantFiled: January 27, 1997Date of Patent: August 25, 1998Assignee: Mitsubishi Paper Mills LimitedInventors: Kenji Momma, Kouji Idei
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Patent number: 5786077Abstract: An aqueous anti-slip coating composition for paper includes 10-50% by weight insoluble silicate particles of 180-300 millimicron average particle size, and 0.5-10% by weight dispersant.Type: GrantFiled: March 6, 1996Date of Patent: July 28, 1998Inventor: John R. McLaughlin
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Patent number: 5776565Abstract: Hybrid sol-gel barrier coatings are produced by hydrolyzing a tetrafunctional alkoxide silicate and a silane having one or two pendant crosslinkable groups in water or water plus a water miscible organic solvent and a catalytic amount a protic acid, Lewis acid, or metal chelate, until a viscosity of from about 2,600 to about 3,200 cps is obtained. The product is then diluted water or water plus a water miscible organic solvent, optionally containing a protic acid, Lewis acid, or metal chelate, until a viscosity of about 0.5 to about 10 cps is obtained. The diluted product is blended with a photoinitiator, coated onto a substrate, dried and irradiated to obtain oxygen barrier films having a very low oxygen transmission rate.Type: GrantFiled: December 4, 1996Date of Patent: July 7, 1998Assignee: International Paper CompanyInventors: Raymond A. Volpe, Paul C. Lucas
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Patent number: 5773131Abstract: A paper product has a base body with an upper surface and a bottom surface. A primer coating is applied in the form of a primer coating mixture to at least one of the upper and the bottom surfaces of the base body. A cover coating is applied to the primer coating. The primer coating mixture is selected from the group consisting of a first composition comprised of water, amorphous silicon dioxide, aluminum dioxide, polyvinyl alcohol, and a copolymer of butadiene/styrene and acrylonitrile, and a second composition comprised of water, a silicon compound selected from the group consisting of silicic acid and silica gel, polyvinyl alcohol, and a copolymer of butadiene-styrene and acrylonitrile.Type: GrantFiled: March 9, 1995Date of Patent: June 30, 1998Inventor: Bernhard Dettling
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Patent number: 5766709Abstract: An insulating container comprising a container body having at least one side wall and a bottom wall with the side wall including a base layer, an insulating layer on at least a portion of the base layer and a printed pattern, mineral oil application or combination thereof on at least a portion of the surface of the insulating layer is disclosed wherein a thickness of the insulating layer is controlled by the printed pattern and/or mineral oil on the selected portion of the insulating layer. Similarly, stock material incorporating the present invention includes a base layer, an insulating layer formed on at least a portion of the base layer and a printed pattern printed on and or mineral oil applied to the insulating layer is disclosed wherein the thickness of the insulating layer is again controlled by the printed pattern and/or mineral oil on the portion of the insulating layer.Type: GrantFiled: February 23, 1996Date of Patent: June 16, 1998Assignee: James River Corporation of VirginiaInventors: Daniel James Geddes, Michael Andrew Breining, Michael Schmelzer
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Patent number: 5759704Abstract: Disclosed is an easily biodegradable composite formulated with cellulosic fibers of wood pulp and recycled pulp and fiber components of fruits and vegetables, and a paper product obtainable from said composite. The purpose is to provide paper products effectively utilized strained lees of juices being wastes of fruits and vegetables and fruits and vegetables of poor commercial value in the market.Type: GrantFiled: May 22, 1996Date of Patent: June 2, 1998Assignee: Takasaki Paper Mfg. Co., Ltd.Inventors: Hajime Horiuchi, Teruo Simizu, Kazuji Nonaka
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Patent number: 5756200Abstract: The invention relates to a photographic support material with a backlayer and to a coating composition for producing this backlayer. The layer is distinguished by excellent writing properties with pencils and is free of contaminations by aged developing baths. It is composed of carboxylated acrylate copolymer, organic polyacid, coarse-grained silica, thickener and, preferably, colloidal aluminium-modified silica.Type: GrantFiled: April 22, 1997Date of Patent: May 26, 1998Assignee: Felix Schoeller jr. Foto- und Spezialpapiere GmbH & Co. KGInventors: Rolf Ebisch, Hans-Ulrich Berner, Hans-Udo Tyrakowski
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Patent number: 5757408Abstract: Disclosed is a recording sheet which comprises a paper substrate and a material selected from the group consisting of monomeric amino acids, monomeric hydroxy acids, monomeric polycarboxyl compounds, and mixtures thereof. Another embodiment of the present invention is directed to a recording sheet which comprises a substrate and a material selected from the group consisting of monomeric amino acids, monomeric hydroxy acids, and mixtures thereof.Type: GrantFiled: June 2, 1995Date of Patent: May 26, 1998Assignee: Xerox CorporationInventor: Shadi L. Malhotra
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Patent number: 5756151Abstract: An image forming paper comprises at least pulp, wherein the paper has a spectral reflectance of at least 85% for light diffused-reflected therefrom in a wavelength range of from 440 nm to 640 nm, and a spectral reflectance distribution in which the difference between the maximum and minimum values of the spectral reflectance of the light in the above wavelength range is 5% or less. Therefore, since the amount of light reflected by the paper is large and the reflectance in blue to red regions is constant, color chroma of a color image on the paper is enhanced particularly in green to red regions, and a color reproduction area of the color image is enlarged.Type: GrantFiled: April 8, 1997Date of Patent: May 26, 1998Assignee: Canon Kabushiki KaishaInventors: Jun Koide, Tatsuo Takeuchi
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Patent number: 5752646Abstract: A paperboard container and method of forming such container having a rolled brim is disclosed. The container being formed of a paperboard material having a caliper of at least approximately 0.007 inches, a rolled brim arc length of less than about 0.25 inches, an outer radius of curvature of the container cut through the plane normal to the axis of the rolled brim arc length adjacent the rolled brim being less than approximately 1.5 inches with the paperboard material forming the container having at least approximately 8 lbs/3,000 ft.sup.2 ream of size press adhesive included therein and preferably approximately 13 lbs/3,000 ft.sup.2 ream of paperboard material. One particular container includes dimensions wherein the outer radius of curvature of the container cut through the plane normal to the axis of the rolled brim arc length adjacent the rolled brim is approximately 1.Type: GrantFiled: July 28, 1995Date of Patent: May 19, 1998Assignee: James River Corporation Of VirginiaInventor: Erland R. Sandstrom
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Patent number: 5753077Abstract: In a web printing paper the base paper comprises of more than 50% wt. de-inked recycled fibers, 10-35% wt. mineral filler and the remainder being wood-pulp and/or cellulose and has a weight of 30 to less than 60 g/m.sup.2. The base paper is coated with a coating having a weight of 2 to 8 g per m.sup.2 and side and the binder proportion is no more than 15% wt. in relation to the coating pigment.Type: GrantFiled: September 21, 1995Date of Patent: May 19, 1998Assignee: Stora Feldmuhle AGInventors: Dieter Horand, Adam Gurtler, Paul Heinz Dahling, Bernd Pelech
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Patent number: 5753082Abstract: Provided are a both-sided recording paper for ink jet recording which has coated layers comprising a pigment and a water-base binder on both sides of a base paper made from pulp slurry comprising a filler and an internal sizing agent; with the coated layers having a per side coverage of from 0.5 to 4.0 g/m.sup.2, on a solids basis, and with the base paper having a basis weight of from 50 to 180 g/m.sup.2, a total filler content within the range of 3 to 20 weight %, and a difference in filler content between surface layers extending to 30 .mu.m below the front and rear surfaces of the base paper respectively within the range of 0 to 30% of the average value of filler contents in the surface layers: and a method of preparing the aforementioned both-sided recording paper.Type: GrantFiled: March 28, 1996Date of Patent: May 19, 1998Assignee: Nippon Paper Industries Company, Ltd.Inventors: Yoshio Yoshida, Norio Fukushima, Michiko Okamoto, Tsuyoshi Yasuda, Yoshihiro Kuroyama
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Patent number: 5750215Abstract: 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: May 12, 1998Assignee: 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: 5750253Abstract: Printing paper such as newspaper printing paper, the water absorbency of which is controlled by coating material for controlling water absorbency on the surface of base paper, wherein the coating material contains component A which is at least one water-soluble polyacrylamide selected from nonionic polyacrylamides, cationic polyacrylamides, and water-soluble polyacrylamides, and component B which is water-soluble anionic polymers of monomers having hydrophobic substitute(s) and monomers having at least carboxyl group(s) or sulfone group(s).Type: GrantFiled: December 28, 1995Date of Patent: May 12, 1998Assignee: Nippon Paper Industries Co., Ltd.Inventors: Toshimi Satake, Toshiyuki Takano, Motoi Fukuda, Yukiko Uehori
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Patent number: 5747177Abstract: The collected lumber of the present invention is formed by heating and softening a plurality of woods, applying adhesive on the woods, pressing and compressing the wood with adhesive thereon to mold the integral body in a prescribed shape, and by fixation treating the integral body using a heating device. The method for manufacturing collected lumber of this invention comprises the first process for softening woods by heat treating a plurality of woods, the second process for applying adhesive on the softened woods, the third process for forming integral body by pressing and compressing the woods applied with the adhesive to mold in a prescribed shape, and the fourth process for fixation treating the integral body using a heating device.Type: GrantFiled: June 1, 1995Date of Patent: May 5, 1998Assignee: Ibiden Co., Ltd.Inventors: Tadashi Torimoto, Yasuhiro Asano, Tsunehiro Kohara, Tetsuya Nishimura
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Patent number: 5747148Abstract: This invention relates to an ink jet printing sheet having a particle filled ink receptor layer and a particle filled protective penetrant layer. The particles from both the ink receptor layer and protective penetrant layer cause protrusions from the protective penetrant layer.Type: GrantFiled: November 6, 1995Date of Patent: May 5, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: David Warner, Charles C. Lee, Wu-Shyong Li
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Patent number: 5744205Abstract: A package and a method are disclosed for preserving freshness of produce using a corrugated fiberboard composed of an outer liner having a carbon dioxide permeability coefficient Pco.sub.2 of greater than 5.times.10.sup.-10 cm.sup.3 (STP)cm/cm.sup.2 .multidot.s.multidot.cmHg at a temperature of 27.degree. C.; a corrugating medium; and an inner liner having a water-vapor transmission rate of less than 100 g/m.sup.2 .multidot.day at a temperature of 27.degree. C. The end parts of the corrugated fiber board which are exposed to an outer surface of the package are substantially sealed with a seal tape. A wrapping paper covered at least on one surface thereof with a resin layer which contains therein less than 0.917 g/cm.sup.3 density of a copolymer of ethylene and .alpha.-olefin having a carbon number of 3 to 12, having a carbon dioxide permeability coefficient of greater than 8.times.10.sup.-10 cm.sup.3 (STP)cm/cm.sup.2 .multidot.s.multidot.cmHg, a permeability coefficient ratio Pco.sub.2 /Po.sub.Type: GrantFiled: June 7, 1995Date of Patent: April 28, 1998Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Yoshitake Kawai, Kazuo Taira, Kanemichi Yamaguchi
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Patent number: 5738933Abstract: The invention relates to a multi-layer product, in particular for producing containers, comprising a layer formed of a fiber-based packing material on one surface of which a gas-tight multi-layer plastic coating is arranged. To prevent the formation of microholes, the gas-tight multi-layer plastic coating is formed of superposed 1-4 g/m.sup.2 barrier plastic layer, 1-4 g/m.sup.2 binder layer, and surface layer of a heat-sealable polyolefin material having sufficient thickness for liquid-tight heat sealing, so that the barrier plastic layer is the closest of said layers to the fiber-based packing material layer.Type: GrantFiled: March 22, 1996Date of Patent: April 14, 1998Assignee: Enso-Gutzeit OyInventors: Riitta Koskiniemi, Tapani Penttinen, Matti Salste
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Patent number: 5736204Abstract: A compostable paperboard container and package for liquids which is coated with a material capable of degrading to carbon dioxide, water and biomass under composting conditions.Type: GrantFiled: June 7, 1994Date of Patent: April 7, 1998Assignee: The Estate of Leonard PearlsteinInventor: Stuart P. Suskind
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Patent number: 5728478Abstract: Display beds for use in bedroom furniture displays are constructed of a series of paperboard units which are combined to form single, full, queen or king size mattresses and boxsprings. The units are lightweight and compact and are internally reinforced to enhance crush resistance. The units are preferably constructed from corrugated cardboard blanks which are folded into a box-like shape and combined to form a given size bed. The cardboard blanks and methods of constructing the display beds are disclosed and claimed.Type: GrantFiled: January 4, 1996Date of Patent: March 17, 1998Inventors: Kevin W. Wilson, Julie M. Robino