Paper Or Wood Patents (Class 428/511)
  • Publication number: 20070218796
    Abstract: A paper composite for use on billboards, including at least one water-resistant paper outer layer impregnated with a polymeric resin, and having one or more pigmented or clear coatings suitable for high quality printing on the surface of the paper, the composite optionally also including a reinforcing lightweight polymeric fabric. A method of applying a visible textual or pictorial image to a billboard includes attaching a composite of this invention, with an image on it, to the billboard. A method of forming a composite of this invention includes adhering together a polymeric fabric and a paper sheet and, either before or after the adhering step, impregnating the paper sheet with a first synthetic polymeric resin in an amount sufficient to render the sheet water-resistant and thereafter applying a coating layer on the paper sheet.
    Type: Application
    Filed: March 16, 2007
    Publication date: September 20, 2007
    Inventor: Peter C. Yao
  • Patent number: 7270876
    Abstract: A unique primer emulsion chemistry yields excellent adhesion of polyethylene terephthalate (PET)resin to clay coated paperboard (with high starch content)at reduced coatweights of the primer emulsion and the resin as compared to other primer and tie-resin chemistries currently employed for moisture barrier applications. A primer used for adhesion enhancement is an ammonium catalyzed, self-crosslinking copolymer of ethylene-vinyl acetate with N-methylol acryl amide functional groups attached to a polymer backbone. Use of the primer in amounts up to about 0.5 pounds per ream permits PET coatweights of as low as 10–12 lbs per ream and lower for some applications.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: September 18, 2007
    Assignee: International Paper Company
    Inventors: Ladislav Bednarik, Vivek Rohatgi, David V. Reed
  • Patent number: 7255918
    Abstract: A coated paper sheet provided with a coating layer formed on a paper sheet substrate and containing a pigment and a binder and optionally a pre-coated polyacrylamide-containing anionic acrylic resin layer formed between the substrate and coating layer, and having a 75° specular gloss of 70% or more, an air permeability of 4000 seconds or less, a Clark stiffness, in terms of critical strength L, of 12 cm or more in a cross direction and an internal bond strength of 200 mJ or more, exhibits high resistance to blistering, excellent printer-passing property, and high quality image-recording property and useful for both of offset printing and electrophotographic duplicating or printing.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: August 14, 2007
    Assignee: Oji Paper Co., Ltd.
    Inventors: Harumi Watanabe, Atsushi Myojo, Hiroyuki Wakasa, Osamu Kitao
  • Patent number: 7244505
    Abstract: The invention relates to a multilayered packaging for greasy products or part of said packaging, comprising a carrier layer made of a polymer material as main component and at least one layer placed on said carrier layer that does not form the outer side of the packaging, said layer containing a starch derivative as main component. The invention is characterized in the starch derivative is a starch derivative modified with a C2–C6-alkylene oxide. The invention also relates to the use of a C2–C6-alkylene oxide derivatized starch as main component of a layer of a multilayered packaging, which is placed on a carrier layer made of a polymer material in said packaging with the aim of rendering said multilayered packaging grease-tight.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: July 17, 2007
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Rolf Kippenhahn, Thomas Luck, Claudia Schönweitz, Peter Pawlak
  • Patent number: 7235306
    Abstract: A heat sealable barrier layer for food and beverage cartons is provided, the barrier layer including an additive material which reduces the amount of essential oil scalping from citrus products. Additionally, a carton coating layer and process is provided for reducing a coefficient of friction of stacked carton blanks. An additional embodiment of the invention provides for a paperboard substrate having reduced water vapor transmission rates, the reduction in water vapor transmission rates being attributed to one or multiple extruded layers containing an effective amount of an inorganic additive.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: June 26, 2007
    Assignee: BRPP, LLC
    Inventor: Kevin Cable
  • Patent number: 7229678
    Abstract: A barrier laminate packaging material comprising from its outermost surface to the innermost surface contacting the contents of the container to be prepared therefrom, a first exterior layer of a low density polyethylene polymer, a paperboard substrate, a first interior layer laminate coating of nylon with a tie resin layer, a blown film layer comprising a first low density polyethylene polymer layer, a tie layer, a first interior layer of EVOH, a second tie layer, a second interior layer of EVOH, a third tie layer and a second interior layer of low density polyethylene polymer, and an innermost product contacting layer of low density polyethylene.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: June 12, 2007
    Assignee: Evergreen Packaging Inc.
    Inventors: Tricia Susan Reighard, Christopher S. Cleveland, Richard A. Tedford, Jr.
  • Patent number: 7217443
    Abstract: A binder composition is provided including a copolymer binder and a hydrophobically modified alkali soluble emulsion polymer. The binder composition is useful as a component of paper coating compositions. As provided is a coating process including the paper coating composition and a paper substrate coated with a paper coating including the binder composition.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: May 15, 2007
    Assignee: Rohm and Haas Company
    Inventors: Barrett Richard Bobsein, Jin-Chih Chiang, Scott Lind Egolf
  • Patent number: 7195805
    Abstract: A heat insulating paper cup having an improved seal. The cup can include a body member having an inside surface and an outside surface, and a bottom panel member having a upper surface and a bottom surface. The body member is coated (or in some instances partially coated) on its outside surface with a foamed low density polyethylene, and on its inside surface with an unfoamed modified low density polyethylene. The bottom panel member is coated on its upper surface with a foamed or an unfoamed low density polyethylene or foamed or unfoamed modified low density polyethylene. The body member and bottom panel member are oriented and joined to form a heat seal at an interface between a portion of the unfoamed modified low density polyethylene coated on the inside surface of the body member and a portion of unfoamed low density polyethylene or unfoamed modified low density polyethylene coated on the upper surface of the bottom panel member.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: March 27, 2007
    Assignee: Dixie Consumer Products LLC
    Inventors: Michael A. Breining, William R. Pucci, David C. Brown, Richard A. Segan, Donald C. McCarthy, Walter Malakhow
  • Patent number: 7192640
    Abstract: A packaging laminate comprising a paperboard substrate for providing a base layer, a tear-resistant polymer layer applied to said substrate, and a heat seal polymer layer applied to said tear-resistant polymer. This laminate structure is particularly useful for blister pack packaging.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: March 20, 2007
    Assignee: International Paper Company
    Inventors: Victor P. Holbert, David Reed
  • Patent number: 7186457
    Abstract: A component such as a siding panel comprised of a PVC/wood flour composite. Another embodiment is a component such as a siding panel that is made from a PVC/CPE/wood flour composite. The cellulosic composite may be extruded through a die and then bent into the shape of the component. Optionally, a reinforcement backer (e.g., an expanded polystyrene foam panel) may be adhered to the cellulosic composite siding.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: March 6, 2007
    Assignee: Crane Plastics Company LLC
    Inventors: Burch E. Zehner, Matthew F. Kollar, Jeffrey R. Brandt
  • Patent number: 7163983
    Abstract: An olefin thermoplastic elastomer sheet which has the same or similar rubber elasticity, flexibility and molding and processability as those of the conventional olefin thermoplastic elastomer sheets, and is good in mechanical properties and excellent in mar resistance in particular, and a production process thereof, and a laminate having a surface layer composed of this sheet. The olefin thermoplastic elastomer sheet according to the present invention is composed of an elastomer material comprising an olefin random copolymer formed by copolymerizing ethylene, an ?-olefin having 3 to 10 carbon atoms and an unsaturated monomer having a functional group, and optionally a non-conjugated diene, and metal ions crosslinking the olefin random copolymer.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: January 16, 2007
    Assignee: JSR Corporation
    Inventors: Kentarou Kanae, Toshiyuki Hayakawa, Minoru Tanaka, Akihiko Morikawa
  • Patent number: 7160595
    Abstract: The present invention is directed to a display strip for allowing a plurality of product-enclosed bags to be attached thereto for the purpose of arrangement and display, which comprises at least a substrate layer and a sealant layer that contains an easy-peelable resin composition comprising an adhesive component and a component for cohesion failure, said the sealant layer is bondable to a surface of the bag by heat sealing, and when the surface of the bag bonded to the sealant layer by heat sealing is peeled from the sealant layer, the sealant layer is broken.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: January 9, 2007
    Assignee: Ishida Co., Ltd.
    Inventors: Yoshio Iwasaki, Yukio Nakagawa, Tadao Oota, Naoji Ichise
  • Patent number: 7147913
    Abstract: The present invention relates to a display strip to hold commodity-containing bags. It can facilitate to make a process of attaching the bags thereto automate. It enables commodity-containing bags to be removed therefrom without having their appearance degraded. The display strip according to the present invention is utilized to hold and align a plurality of commodity-containing bags vertically for the display. It comprises at least a substrate layer and a sealant layer with the sealant layer containing an ethylene-vinyl acetate copolymer and an adhesive promoting tackifier.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: December 12, 2006
    Assignee: Ishida Co. Ltd.
    Inventors: Yoshio Iwasaki, Yukio Nakagawa, Tadao Oota, Naoji Ichise
  • Patent number: 7144635
    Abstract: A tear resistant laminated comprised of a paper or paperboard substrate, and adhesive layer, a tear resistant layer secured to the adhesive layer, and a heat-sealable material. The tear resistant material has a a tear strength as measured by the Elmendorf tear propagation test of at least about 300 grams of force in both machine and cross direction.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: December 5, 2006
    Assignee: MeadWestvaco Corporation
    Inventors: David H. Hawes, Mohan Sasthav
  • Patent number: 7138160
    Abstract: The use, for the manufacture of paper coating colors, of a copolymer water-soluble in a neutral or alkaline medium as an agent for simultaneously adjusting the water retention of the coating colors and the Brookfield viscosity of the said coating colors; a water-retention agent comprising the copolymer; and coating colors and the coated paper and cardboard thus obtained.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: November 21, 2006
    Assignee: Coatex S.A.S.
    Inventors: Francois Dupont, Henri Grondin, Georges Ravet, Jean-Marc Suau
  • Patent number: 7128969
    Abstract: The invention relates to a method for the plastic shaping of a biaxially-drawn film, comprising at least one base layer, containing at least one polymer (I), made from at least one hydroxycarboxylic acid and ?0.2 wt %, based on the weight of the layer, of a thermoplastic polymer (II), different from polymer (I). Said film is plastically moulded by application of pneumatic and/or mechanical forces.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: October 31, 2006
    Assignee: Trespaphan GmbH
    Inventors: Detlef Busch, Marlies Rosenbaum, Manfred Rosenbaum
  • Patent number: 7122585
    Abstract: Coating powders with enhanced electrostatic attraction to low conductivity substrates such as engineered wood are disclosed. The addition of conductive fillers to low temperature cure coating powder compositions improves the coating of difficult to coat substrates such as raised panel cabinet doors. Low temperature cure coating powders containing conductive additives can be applied to preheated engineered wood substrates. Also disclosed are methods for forming a powder coating on a low conductivity substrate.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: October 17, 2006
    Assignee: Rohm and Haas Company
    Inventors: Edward G. Nicholl, Joseph J. Kozlowski
  • Patent number: 7097911
    Abstract: A layered flame retardant system and method is disclosed comprising a first flame retardant stable layer for covering a solid combustible material and a second moisture protecting polyolefin stretch film layer. The polyolefin stretch film layer further compactly affixes the first flame retardant stable layer to the solid combustible material. Some embodiments incorporate a five layer flame retardant polyolefin stretch film with flame retardant additives primarily in the inner layers. Another embodiment incorporates thermal insulating material.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: August 29, 2006
    Assignee: Central Products Company
    Inventors: Trevor Arthurs, Joel Lee
  • Patent number: 7091286
    Abstract: Low-cure powder coating compositions are disclosed, comprising at least one epoxy-containing resin and/or at least one siloxane-containing resin, and at least one material having the structure wherein R1 is an organic radical having 6 to 25 carbon atoms; each R2 is independently a multivalent hydrocarbon group having 1 to 20 carbon atoms; Y is each R3 and R4 are independently alkyl or aryl groups having 1 to 8 carbon atoms; each Z is independently oxygen or nitrogen; R5 is absent when Z is oxygen and R5 is hydrogen, an alkyl or aryl group having 1 to 20 carbon atoms, or (Y)a —R2— when Z is nitrogen; a and b are integers; a is at least 1; b is 1 to 3; and (b) at least one epoxy-containing resin and/or at least one siloxane-containing resin. The material can optionally be reacted with an acidic hydrogen-containing compound. Some compositions are curable without using crosslinking agents or accelerators.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: August 15, 2006
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Shawn P. Duffy, Anthony M. Chasser, Ronald R. Ambrose
  • Patent number: 7074538
    Abstract: The invention provides an image forming method, comprising transferring a toner image to an electrophotographic recording sheet, layering the electrophotographic recording sheet on a fixing belt and heating and pressing the sheet, and cooling the electrophotographic recording sheet and separating the sheet from the fixing belt. The electrophotographic recording sheet comprises a support comprising cellulose pulp-containing base paper and a toner image-receiving layer comprising a thermoplastic resin disposed on the support. A shrinkage percentage of the electrophotographic recording sheet in a CD direction in the heating step is 1.3% or less. The support preferably further comprises either a polyolefin-containing layer or a coating that contains at least one selected from the group consisting of kaolin, a pigment, a resin, a rubber latex, or a polymer material and that is provided on one or both surfaces of the base paper.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: July 11, 2006
    Assignees: Fuji Xerox Co., Ltd., Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Hosoi, Ashita Murai, Yasutomo Goto
  • Patent number: 7070865
    Abstract: A coating composition for the linerboard of corrugated paperboard provides water and grease resistance but is water vapor permeable, and thus permits a different mode of manufacture of corrugated paperboard when aqueous adhesives are employed in the assembly of the linerboards and corrugated medium; in particular the linerboards may be coated with the coating composition prior to assembly of the corrugated paperboard because the water vapor permeable coating permits escape of the water of the aqueous adhesive, during drying of the assembled components of the corrugated paperboard; the coating composition employs a styrene-acrylate copolymer and a C14-C18 fatty acid complex of a metal ion having an oxidation state of at least 3, such as chromium.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: July 4, 2006
    Assignee: Le Groupe Recherche I.D. Inc.
    Inventor: Serge Berube
  • Patent number: 7067174
    Abstract: A self-adhesive labelstock comprises a face paper that has an adhesive layer formed on its one side. The face paper is finished in contact over a long distance with a smooth, hot drying surface, which finishes the smoothness of the paper, such as a Yankee cylinder or a Condebelt dryer. The face paper is suitable for printing by many different printing methods.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: June 27, 2006
    Assignee: UPM-Kymmene Corporation
    Inventor: Jyrki Taipale
  • Patent number: 7063888
    Abstract: An image supporting member that fixable supports a color toner image has a base material, a light scattering layer formed on the base material and containing a white pigment and a thermoplastic resin, and a color toner receiving layer formed on the light scattering layer and containing at least a thermoplastic resin, wherein the thermoplastic resin of the light scattering layer is made of a polyolefin or a polyolefin copolymer, a temperature T at which the viscosity becomes 5×103 Pa·s being 120° C. or higher, and the thermoplastic resin of the color toner receiving layer is a polyolefin copolymer, a temperature t at which the viscosity becomes 103 Pa·s being from 90 to 120° C. Further, an image forming apparatus using this image supporting member is also provided.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: June 20, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Osamu Ide
  • Patent number: 7048882
    Abstract: This invention concerns a process for coating a substrate, and an extrusion coating structure. According to the present process, the coating is provided by producing a bimodal polyethylene composition by subjecting ethylene, optionally with hydrogen and/or comonomers to polymerization or copolymerization reactions in a multistage polymerization sequence of successive polymerization stages. The polymerization reactions are carried out in the presence of a single site catalyst capable of forming a composition which comprises a low molecular weight component with an MFR2 of 20 g/10 min or more and a density higher than the density of the composition, and a high molecular weight component, said composition having a melt flow rate MFR2 of 5 g/10 min or more and a density of 915–960 kg/m3. The composition is extruded on the substrate as such or by adding 10 wt-% or less, calculated from the total weight of the coating, of high pressure PE-LD by blending into the extrusion composition or by coextrusion.
    Type: Grant
    Filed: February 19, 2001
    Date of Patent: May 23, 2006
    Assignee: Borealis Technology Oy
    Inventors: Martti Vähälä, Hannu Salminen, Arja Lehtinen
  • Patent number: 7033455
    Abstract: The invention relates to a method of producing a laminated packaging material (10) including a core layer (16) of paper or paperboard and a barrier layer (14) applied on one side of the core layer. The invention also relates to a laminated packaging material (10) produced according to the method, as well as a packaging container (50) which is produced from the laminated packaging material (10).
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: April 25, 2006
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Mikael Berlin, Mats Bentmar, Katarina Flemmer-Karlsson
  • Patent number: 7019054
    Abstract: A formulation, and a process for making same, is disclosed which is useful as a coating or treatment for imparting oil and grease resistance to an underlying substrate. The formulation does not contain any fluorochemicals. At the same time, however, the formulation provides oil and grease resistance properties that are equivalent to known coatings and treatments which contain fluorochemicals, particularly those coatings which are permitted to come into direct contact with food products. Therefore, the formulation of the present invention is ideal for use as a coating for paper and paperboard, including paper packaging such as that utilized in food wrappers, food containers, food receptacles and the like, and for other shaped articles. The formulation is also useful as a coating or treatment for providing release properties to an underlying substrate without the use of silicone.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: March 28, 2006
    Inventors: Ajit S. Dixit, Melvin G. Mitchell, Jeanette M. Paris, Mark J. Andersen, Christy M. Huggins
  • Patent number: 7011883
    Abstract: The present invention relates to a display strip to hold commodity-containing bags. It can facilitate to make a process of attaching the bags thereto automate. It enables commodity-containing bags to be removed therefrom without having their appearance degraded. The display strip according to the present invention is utilized to hold and align a plurality of commodity-containing bags vertically for the display. It comprises at least a substrate layer and a sealant layer with the sealant layer containing an ethylene-vinyl acetate copolymer and an adhesive promoting tackifier.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: March 14, 2006
    Assignee: Ishida Co., Ltd.
    Inventors: Yoshio Iwasaki, Yukio Nakagawa, Tadao Oota, Naoji Ichise
  • Patent number: 6989191
    Abstract: The invention relates to a paper composite material with repulp-resistant adhesive coating, consisting of a paper carrier and an adhesive layer, characterized in that an intermediate coat of a dispersion polymer film containing a protective colloid and/or an emulsifying agent and with a glass transition temperature Tg of ?20° to 40° is applied between the paper carrier and the adhesive coating. The invention also relates to a method for the production of paper composite material with repulp-resistant adhesive coating.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: January 24, 2006
    Assignee: Wacker-Chemie GmbH
    Inventors: Rudolf Weissgerber, Thomas Bastelberger
  • Patent number: 6989407
    Abstract: Provided are radiation-cured, laminated materials, radiation-curable adhesive compositions suitable for use in forming the laminated materials, and methods of making laminated materials.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: January 24, 2006
    Assignee: Northwest Coatings, LLC
    Inventor: Stephen C. Lapin
  • Patent number: 6958185
    Abstract: A multilayer synthetic wood component comprised of a layer of a first synthetic wood composition that is secured to a layer of a second synthetic wood composition. As a result, the present invention may provide a component that utilizes the beneficial characteristics of each of the compositions. For instance, the component can have an improved combination of appearance, strength, durability, weight, weatherability, and other characteristics. Moreover, the present invention enables the ingredients of each layer to be tailored to the particular application. Consequently, certain ingredients can be conserved, thereby reducing the cost and/or the weight of the component.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: October 25, 2005
    Assignee: Crane Plastics Company LLC
    Inventor: Burch E. Zehner
  • Patent number: 6926968
    Abstract: The invention is a paper/plastic laminate suitable for use in office, midrange and high-speed traditional laser and digital copiers and digital printers, and other like equipment using heat set fuser toner adhesion as the method for fusing/bonding an ink to a paper. The paper/plastic laminate comprises a paper web laminated to a plastic film using 100% solids, or solventless, adhesives. The plastic film includes at least one printed image thereon. Employing solventless adhesive technology in the laminating process yields a more dimensionally stable paper/plastic laminate when the laminate is re-exposed to heat and the ability to make lighter paper/plastic laminates than otherwise possible using solvated or waterborne adhesives.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: August 9, 2005
    Assignee: Chase Corporation
    Inventor: James Lordi
  • Patent number: 6924243
    Abstract: A process for preparing a fiberglass insulation product, including the steps of: (a) providing a layer of fire-retardant kraft paper, (b) coating the fire-retardant kraft paper layer with from 2 to 10 pounds of HDPE or of polypropylene per 3000 square feet of the paper to form an HDPE-fire-retardant kraft laminate or a polypropylene-fire-retardant kraft laminate, (c) coating the HDPE-fire-retardant kraft or polypropylene-fire-retardant kraft laminate with from 3 to 10 pounds of LDPE per 3000 square feet of the HDPE-fire-retardant kraft laminate or polypropylene-fire-retardant kraft laminate to form an LDPE-HDPE-fire-retardant kraft laminate or an LDPE-polypropylene-fire-retardant kraft laminate, (d) adjusting the temperature of the LDPE-HDPE-fire-retardant kraft laminate or the LDPE-polypropylene-fire-retardant kraft laminate so that the LDPE becomes tacky while the HDPE or polypropylene remains solid, (e) providing a layer of fiberglass wool, and (f) contacting the LDPE layer of the LDPE-HDPE-fire-retardant
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: August 2, 2005
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventor: James G. Snyder
  • Patent number: 6924042
    Abstract: A planar multi-ply product includes two or more plies of fibrous material, such as a multi-ply tissue product, wherein at least two of the plies are attached to each other with an adhesive agent, which comprises a gelatinous compound, e.g. gelatine. This multi-ply product shows an excellent adhesion between the plies, even if the product carries a lotion.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: August 2, 2005
    Assignee: SCA Hygiene Products GmbH
    Inventor: Peter Von Paleske
  • Patent number: 6919111
    Abstract: An improved paperboard has been bulk enhanced by retaining a substantial portion of bulk-enhanced additives including expandable microspheres in a suitable distribution within the paperboard. The cellulosic paperboard web has an overall fiber weight (w) of at least 40 lbs. per 3000 square feet and, at a fiber density of 3, 4.5, 6.5, 7, 8.3, and 9 pounds per 3000 square foot ream at a fiberboard thickness of 0.001 inches, has a GM Taber stiffness of at least about 0.00246 w2.63 grams-centimeter/fiber mat density1.63, and a GM tensile stiffness of at least about 615+13.18 w pounds per inch. The high retention of the bulk enhancing additives is believed to result from the incorporation of suitable retention aids. The resulting paperboard has better GM Taber stiffness values and GM tensile stiffness than prior art paperboards. The paperboard also has increased strain to failure and is able to be formed into suitable paperboard containers without loss of integrity.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: July 19, 2005
    Assignee: Fort James Corporation
    Inventors: Dean P. Swoboda, Anthony J. Swiontek, Timothy P. Hartjes, Kenneth J. Shanton, Erland R. Sandstrom
  • Patent number: 6919135
    Abstract: A paper container is produced that has gas barrier properties, by employing a laminate having at least a (I) paper layer 101, a (II) gas barrier layer 103, and an (III) epoxy-group-containing resin composition layer 104. The (III) epoxy-group-containing resin composition layer consists of a resin composition that contains a polyolefin (a) having a melt flow rate of 0.1˜100 g/min and an epoxy-compound (b) which has two or more epoxy groups in the molecule and has a molecular weight of 3000 or less, epoxy-compound (b) being added in an amount of 0.01˜5 parts by weight with respect to 100 parts by weight of polyolefin (a). This (III) epoxy-group-containing resin composition layer has good adhesion with the (II) gas barrier layer, thus a laminate can be produced without employing a dry laminate adhesive agent or an extrusion laminate anchor agent. Accordingly, it is possible to avoid a deterioration in the work environment or an odor remaining in the final product from the use of organic solvents.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: July 19, 2005
    Assignee: Japan Polyolefins Co., Ltd.
    Inventor: Hiroshi Kasahara
  • Patent number: 6916047
    Abstract: A laminated construction that combines card stock with another card stock that has been printed with a dark pigmented coating, such as ink, to prevent the show through of information that appears beneath a scratch-off coating over the concealed information.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: July 12, 2005
    Assignee: Bertek Systems, Inc.
    Inventors: Steve Jarvis, Ken Whitcomb
  • Patent number: 6908665
    Abstract: Provided are laminated flexible packaging materials (20) suitable for containing a pharmaceutical, food or beverage grade product. The laminated flexible packaging material includes a layer of flexible packaging material (26) bound to at least one other layer of flexible packaging material (22) by a radiation-cured laminating adhesive composition (24) formulated from a radiation-curable laminating adhesive containing at least 50% of one or more radiation-curable, carboxylic acid functional monomers and 0.1 to 20% of an organic titanate compound. Also provided is a radiation-curable laminating adhesive containing at least 50% of one or more radiation-curable, carboxylic acid functional monomers and 0.1 to 20% of an organic titanate compound.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: June 21, 2005
    Assignee: Northwest Coatings L.L.C.
    Inventors: Kevin D. Rea, Stephen C. Lapin, Paul Eugene Snowwhite, Jr.
  • Patent number: 6902782
    Abstract: A packaging tape includes a carrier tape and a top tape. The carrier tape is provided with device-accommodating recesses. The top tape is attached to the carrier tape by heat-sealing to close the device-accommodating recesses. The carrier tape includes a resin layer made by impregnation and drying of a water-dispersible resin or a water-soluble resin or both. The top tape is attached to the resin layer of the carrier tape. This prevents the generation of static electricity on the top tape as the top tape is peeled off the carrier tape. Accordingly, the unscheduled removal of electronic devices from the device-accommodating recesses by the static electricity is avoided.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: June 7, 2005
    Assignee: Rohm Co., Ltd.
    Inventor: Shigeru Kambara
  • Patent number: 6893676
    Abstract: A method of making a glow in the dark puff heat transfer material and a composition of glow in the dark puff heat transfer material are presented in this invention. Unlike many prior art heat transfer methods, the heat transfer method utilized in the present invention adheres to OSHA regulations 29 CFR 1910.1017. The process of making the glow in the dark puff heat transfer material comprises the steps of applying one or more layers of a specific glowing material between the colors layers. The composition comprises specific amounts of a glow clear base, glow puff material, translucent inks, and an effective amount of glowing material. A printable adhesive base may be added to the composition if the glowing material is not mixed with the glow clear base or with the glow puff material. The composition is printed on a paper substrate and cured through a conventional dryer.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: May 17, 2005
    Assignee: Next Graphics, Inc.
    Inventor: Nidal Alif
  • Patent number: 6893707
    Abstract: Structured polyolefin coated substrates and processes for making the same are disclosed. A chill roll is used to impart a plurality of peaks which protrude outwardly from the polyolefin coating of the structured substrate. In addition, the chill roll surface is treated to impart a matte finish and thus to transfer a matte finish to the area surrounding the peaks of the polyolefin coating.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: May 17, 2005
    Assignee: Loparex, Inc.
    Inventors: LeRoy Herbert Keiser, Kurt Henry Mather
  • Patent number: 6894095
    Abstract: Adhesives and primer compositions that include water, a polymer and a pH indicator. The adhesives and primers have a visually-detectable color when wet, and preferably dry to a clear or transparent film, while having good flow and spreadability. The adhesives and primers provide a visual indication of wetness by including a pH indicator such that when the composition is wet, the pH indicator is colored such that the color and the intensity of the color provides a visual indication of wetness; sufficiency of thickness; and uniformity of application of the adhesive or primer.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: May 17, 2005
    Assignee: The Dial Corporation
    Inventors: Gerald Russo, Merle Houck, Robert Puchalski
  • Patent number: 6887538
    Abstract: A barrier laminate useful for the formation of orange juice and citrus beverage cartons is provided. The laminate provides a skin coat of a MDPE which provides a barrier to water vapor transmission through the laminate. The reduced water vapor flow decreases the bulge rate of the resulting carton.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: May 3, 2005
    Assignee: BRPP, LLC
    Inventors: Alan W. Denney, Linnea Brady Keen
  • Patent number: 6872459
    Abstract: This invention relates to the laminated material for food packaging, and its manufacturing process. The laminated material (10) consists of the quality keeping intermediate layer (12) laminated inside the paper core layer (11) and the core layer and the heat sealable innermost layer (13). The quality keeping intermediate layer comprises of an extrusion coatable blend polymer consisting of polymer component A 50-95% of nylon-MXD6 or EVOH and, polymer component B 5-50% of nylon 6, nylon 6, the blends or PET. The quality keeping intermediate layer is extruded and laminated directly in the core layer, the innermost layer contains at least the linear low density polyethylene which has a narrow molecular weight distribution, and has the properties parameter of mean density of 0.910-0.925, 100-122 degrees C. peak melting point, melt flow index of 5-20, swelling ratio (SR) of 1.4-1.6, and 5-50 micrometer layer thickness.
    Type: Grant
    Filed: September 18, 1999
    Date of Patent: March 29, 2005
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Peter Frisk, Norio Kobayashi, Hiroaki Ogita
  • Patent number: 6872278
    Abstract: An adhesive composition that includes a) an emulsion that includes a multi-stage polymer that includes a first stage polymer having a Tg from ?20° C. to 90° C. and including from about 0.5% by weight to about 3% by weight latent crosslinking monomer based on the first stage monomer weight, and a second stage polymer having a Tg from 40° C. to 140° C., the second stage polymer being different from the first stage polymer, b) formaldehyde-based crosslinking agent, and c) catalyst, the composition being capable of passing the DIN EN 204 Test Method.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: March 29, 2005
    Assignee: H.B. Fuller Licensing & Financing, Inc.
    Inventors: Nicholas C. Lehman, Scott W. Rhein, John T. Anderson
  • Patent number: 6852422
    Abstract: Printable packaging paper for flexible packaging. A flexible overall print coating makes a first surface suitable for conventional printing. The print coating comprises clay, binder comprising acrylic and optionally PVOH, and microsphere shells, some optionally deformed. A barrier coating comprising PVOH, optionally acrylic, can be on the second surface. A multiple layer packaging structure can comprise such coated substrate and second and third strength layers of paper, and a flexible polyolefin barrier layer, all on the barrier coating side of the substrate, joined to the barrier coating. The flexible print coating can include titanium dioxide.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: February 8, 2005
    Assignee: Appleton Papers, Inc.
    Inventors: David Paul Kendall, James Richard Hillend
  • Patent number: 6852198
    Abstract: Disclosed is a resin composition for water-resistant and moisture-proof paper comprising 40 to 75 parts by weight of a polyolefin (A), 25 to 60 parts by weight of a tackifier (B) and 0 to 20 parts by weight of a compatibilizing agent (C), the total of (A), (B) and (C) being 100 parts by weight, and further blending 20 to 300 parts by weight of an inorganic filler (D) to 100 parts by weight of the sum of (A), (B) and (C). According to the present invention, the water-resistant and moisture-proof paper is provided at low cost which is disaggregated with ease by a pulper and recycled as paper materials.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: February 8, 2005
    Assignee: Goyo Paper Working Co., Ltd.
    Inventors: Yukinobu Yamazaki, Michinori Nakamoto, Hiroshi Okamura, Takeshi Yoshida, Hiroshi Kawahara
  • Patent number: 6844049
    Abstract: An article made from polyvinyl chloride/wood composite having a natural wood grain finish and a method for creating the article. The natural wood grain finish is created on the article by applying multiple paint transfers onto the polyvinyl chloride/wood composite. The paint is transferred by a series of printing rollers having a wood grain pattern. Optionally, the polyvinyl chloride/wood composite can be painted with a base-coat of a hydrocarbon-based paint before applying the multiple paint transfers. This method is especially suited for manufacturing window blind slats.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: January 18, 2005
    Inventor: Hossein Amin-Javaheri
  • Patent number: 6838167
    Abstract: A printing and copying paper capable of printing or copying images distinctly on a large scale, without becoming curled or being blocked up in or sent out of machines as two or more than two of the papers being superposed, by means of high temperature high speed printing or copying machines, in which toners are to be fixed at high temperature, comprising a sheet of paper, a white polyethylene coating layer coating on the surface of the paper, said layer being laminated with a transparent heat resistant resin coating layer, or a transparent heat resistant resin film to form a glossy surface, and a transparent polyethylene coating layer coating on the back surface of the paper, said layer being coated with a transparent heat resistant resin coating liquid which is mixed with matting agents.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: January 4, 2005
    Assignees: Kokuyo Co., Ltd., Kisokaseisangyou Co., Ltd.
    Inventors: Yoshifumi Sokabe, Shin Nakashima
  • Patent number: 6821373
    Abstract: The invention relates to a method of producing a laminated packaging material (10) including a core layer (16) of paper or paperboard and a barrier layer (14) applied on one side of the core layer. The invention also relates to a laminated packaging material (10) produced according to the method, as well as a packaging container (50) which is produced from the laminated packaging material (10).
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: November 23, 2004
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Mikael Berlin, Mats Bentmar, Katarina Flemmer-Karlsson, Lars Bertilsson
  • Patent number: RE39761
    Abstract: A laminate wall structure which can be used as an exterior wall in manufactured housing and site built construction is made up of a low density layer having a density of from about one-half pound to three pounds per cubic foot, a second, reinforcing layer laminated to the low density layer and, optionally, a cellulosic layer laminated to the second, reinforcing layer. The low density layer is preferably a foamed polymer layer, the second, reinforcing layer is a polymer fabric, a biaxially oriented polymeric film or a fiberglass reinforced material and the cellulosic layer can be impregnated with an adhesive and/or resin in order to strengthen the laminate structure. This laminate wall structure has a low weight and yet is strong enough to meet wind zone wall diaphragm requirements for housing construction.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: August 7, 2007
    Assignee: National Shelter Products, Inc.
    Inventor: John Cahill