Paper Or Wood Patents (Class 428/479.6)
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Patent number: 6761972Abstract: A direct drawing type lithographic printing plate precursor comprising a water-resistant support and an image-receiving layer, the image-receiving layer comprising a filler and a binder resin, wherein the filler comprises a porous filler, and the binder resin comprises a complex comprising a resin containing a bond in which a metal atom is connected with an oxygen atom and an organic polymer containing a group capable of forming a hydrogen bond with the resin.Type: GrantFiled: March 12, 2002Date of Patent: July 13, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Seishi Kasai, Eiichi Kato
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Patent number: 6746736Abstract: The present invention is a composition for use as an oil and grease resistant coating for packaging materials including a radiation sensitive monomer; a photopolymerization initiator; and an additive, wherein the additive preferably is a chlorinated paraffin. Preferably, the composition is used to treat the surface of a paper or paperboard substrate and the substrate preferably is used subsequently in the manufacture of packaging materials, such as pet food bags.Type: GrantFiled: March 2, 2001Date of Patent: June 8, 2004Assignee: Actinic, Inc.Inventors: Timothy Jon Leeper, Joy Michelle Thomas
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Patent number: 6740415Abstract: The invention relates to a radiation curable powder paint binder composition comprising a radiation curable compound being a mono or multi valent carboxylic ester of a &bgr;, &ggr;, &dgr;, or &egr;-hydroxyalkylamide group containing compound, in which the carboxylic ester is derived from an &agr;, &bgr;-ethylenically unsaturated carboxylic acid.Type: GrantFiled: January 5, 2001Date of Patent: May 25, 2004Assignee: DSM N.V.Inventors: Rudolfus A. T. M. Van Benthem, Saskia Udding-Louwrier, Johan F. G. A. Jansen, Aylvin J. A. A. Dias
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Patent number: 6677048Abstract: The lid structure for a food packaging container comprises a paper-based body layer and, on the side that is to be against the packaging container, plastic layers that function as a barrier and as heat-sealable layers. The lid structure comprises, as the plastic layers attached to the body layer, one or more layers of biodegradable plastic, such as polylactide and/or polyhydroxy alkanoate and on their outer side, the outermost layer, which is formed of biodegradable ester copolymer, to whose ester parts a comonomer has been linked by ester or amide bonds.Type: GrantFiled: January 18, 2001Date of Patent: January 13, 2004Assignee: UPM-Kymmene CorporationInventors: Hannu Karhuketo, Heikki Korpela
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Patent number: 6599638Abstract: A filter substrate impregnated with an emulsion polymer, the emulsion polymer being substantially devoid of phenolics and stabilized using a protective colloid.Type: GrantFiled: September 8, 2000Date of Patent: July 29, 2003Assignee: Dow Reichhold Specialty Latex LLCInventor: Venkataram Krishnan
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Patent number: 6582808Abstract: A packaging laminate for a container which enables a blend monolayer to be effectively extrusion coated onto the paperboard substrate as the product contact layer without the need for tie layers or multilayer co-extrusion equipment. The blend monolayer has superior oxygen transmission resistance and has excellent pinhole resistance compared to straight polyethylene monolayer. The product contact layer consists of a blend of a polyolefin polymer, a polyamide, and a compatibilizer in a preferred embodiment. The monolayer blend is a low cost alternative to multilayer structures.Type: GrantFiled: August 1, 2001Date of Patent: June 24, 2003Assignee: International Paper CompanyInventors: Gregory J. Castle, Dolan R. Johnson, Keith S. Shih, A. Craig Bushman
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Patent number: 6576304Abstract: 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: March 1, 2001Date of Patent: June 10, 2003Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kazuki Yamada, Hirotaka Tsunoda, Hideki Kurokawa
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Publication number: 20030096132Abstract: PVC/wood fiber composites are comprised of (1) wood fibers; and (2) a composite comprising PVC, a polyester and a lubricant package comprised of one or more polyol esters, polyols, fatty acid esters of aliphatic or aromatic dicarboxylic acids, fatty acid salts, fatty alcohols, hydrogenated fatty acid glycerides and combinations thereof. The composites are easier to process than conventional composites because they require lower extruder torque that translates into less work and corresponds to lower process temperatures.Type: ApplicationFiled: October 21, 2002Publication date: May 22, 2003Inventor: Mark P. Richardson
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Publication number: 20030059636Abstract: Compositions and methods are provided for the sizing of paper, to enhance the quality of images printed thereon. The novel sizing compositions contain as a sizing agent: (a) an azetidinium polymer, (b) a guanidine polymer, (c) a mixture of an azetidinium polymer and a guanidine polymer, or (d) a copolymer of an azetidinium monomer and a guanidine monomer. When applied to a paper substrate, such as in an internal or external sizing process, the sizing compositions result in a sized paper substrate that provides high quality printed images when printed with an ink containing a reactive dye having ionizable and/or nucleophilic groups capable of reacting with the sizing agent. Images printed on a paper substrate coated with the sizing compositions of the invention are bleed-resistant, water-resistant (e.g., water-fast), and/or are characterized by an enhanced chroma and hue.Type: ApplicationFiled: September 27, 2002Publication date: March 27, 2003Inventor: Asutosh Nigam
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Patent number: 6489040Abstract: A gypsum wall board is disclosed in which at least one of the paper cover sheets is made with neutral size and a small amount of a cationic polyamide resin is added to the stock used to make the cover sheet. The paper cover sheets provide improved resistance to post-manufacturing problems that involve delamination, such as “Roll-up”.Type: GrantFiled: February 15, 2000Date of Patent: December 3, 2002Assignee: United States Gypsium CompanyInventors: Evan V. Rohlf, Charles W. Cochran
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Publication number: 20020136862Abstract: The present invention refers to multi-layered decorative laminates including a decorative layer, such as a wood veneer layer, and one or more reinforced polymer layer(s), such as a reinforced polyvinyl chloride (PVC) layer. Methods of making and using such laminates and of producing overly and underlay layers, which supplement the decorative layer, are described herein. The invention also relates to laminates of improved fire resistance including reinforced polymer layers.Type: ApplicationFiled: December 11, 2000Publication date: September 26, 2002Inventors: Daojie Dong, Galen R. Dudgeon, James V. Gauchel, John Giacalone, Dale A. Grove, Diane M. Hulett, Yein-Ming L. Lee, Jeff Tigner
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Patent number: 6451444Abstract: A surfaced wood-based board comprises a substrate (1) made of wood material and, on it, a surfacing (2) comprising at least one thermoplastic layer. The surfacing incorporates a polyamide film (2b), which has been glued to the surface of the substrate (1) by means of a reactive adhesive layer (2a). The adhesive layer (2a) is based on phenolic resin, polyester resin, epoxy resin, isocyanate adhesive or polyurethane adhesive, and it is an adhesive film impregnated with reactive adhesive, such as an impregnated paper. A surfaced board is produced by hot-pressing, which is used to attach the films to each other and the substrate.Type: GrantFiled: September 1, 2000Date of Patent: September 17, 2002Assignee: Schauman Wood OyInventors: Timo Ollila, Marjaliisa Asikainen, Arto Juvonen
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Patent number: 6420045Abstract: The present invention relates to a multilayer structure comprising a material covered with a copolymer having polyamide blocks and hydrophilic blocks where the copolymer has a melting point of less than 135° C.Type: GrantFiled: June 23, 2000Date of Patent: July 16, 2002Assignee: AtofinaInventors: Heike Faulhammer, Yves Aubert, Thierry Briffaud, Hermann Josef Hilgers, Didier Roumilhac
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Patent number: 6406644Abstract: Oxygen scavenging materials incorporated into or attached to a package such as a gable-top or rectangular carton, used to package foods, beverages or other oxygen sensitive materials, and thereby increase shelf-life by decreasing oxygen in the headspace of the package, and decreasing oxidation of the packaged product.Type: GrantFiled: February 20, 2001Date of Patent: June 18, 2002Assignee: Chevron Phillips Chemical Company LPInventors: Gary D. Jerdee, James P. Leonard, Ta Yen Ching, Joseph L. Goodrich, Brad D. Rodgers, Richard P. Schmidt
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Publication number: 20020072585Abstract: This invention relates to a partially or exhaustively derivatized PPE. The partially derivatized PPE comprises vinylated phenylene ether repeating unit, and at least one another repeating unit, which is selected from a phenylene ether repeating unit and a hydroxylated phenylene ether repeating unit. A resin composition having a low curing temperature is also disclosed, which comprises: (a) a partially or exhaustively derivatized PPE; and (b) a free radical initiator.Type: ApplicationFiled: December 28, 2000Publication date: June 13, 2002Applicant: Industrial Technology Research InstituteInventors: Chingchen S. Chiu, Chien-Ting Lin, Gue-Wuu Hwang, Li-Chung Liang, Meng-Song Yin
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Publication number: 20020051873Abstract: A packaging laminate for a container which enables a blend monolayer to be effectively extrusion coated onto the paperboard substrate as the product contact layer without the need for tie layers or multilayer co-extrusion equipment. The blend monolayer has superior oxygen transmission resistance and has excellent pinhole resistance compared to straight polyethylene monolayer. The product contact layer consists of a blend of a polyolefin polymer, a polyamide, and a compatibilizer in a preferred embodiment. The monolayer blend is a low cost alternative to multilayer structures.Type: ApplicationFiled: August 1, 2001Publication date: May 2, 2002Inventors: Gregory J. Castle, Dolan R. Johnson, Keith S. Shih, A. Craig Bushman
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Patent number: 6352784Abstract: A wood decorative material coated with resin composite film, comprising a laminate of, arranged in the following order, a wood substrate; a heat bonding layer (A) formed from a heat bonding resin composition comprising 100 parts by weight of a thermoplastic resin (a-1) and 0.001 to 80 parts by weight of a tackifier resin (a-2), the above heat bonding resin composition having a melting point or softening temperature of 170° C. or below and exhibiting a melt flow rate (MFR) at 190° C. of 1 to 500 g/10 min; and a mar-proof surface layer (B). Not only can beautiful appearance be obtained while retaining natural texture without the application of lacquer but also surface protection and bending working properties are improved.Type: GrantFiled: June 29, 1998Date of Patent: March 5, 2002Assignee: Tohcello Co. Ltd.Inventor: Mikio Katagiri
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Publication number: 20020022096Abstract: A barrier structure for food and juice packages is provided by an EVOH barrier layer blended with an amorphous polyamide. The barrier layer is applied to a paperboard substrate as part of a multiple layer coating used on the interior of a food beverage package.Type: ApplicationFiled: April 23, 2001Publication date: February 21, 2002Inventor: James F. Curtis
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Patent number: 6346332Abstract: This invention relates to a laminate substrate. An exemplary embodiment comprises a paperboard layer with a heat sealable layer secured substantially adjacent to one side of the paperboard layer. A co-extruded layer is secured substantially adjacent to the other side of the paperboard layer. The co-extruded layer has five layers: a heat sealable layer secured to the paperboard layer, a first tie layer secured adjacent to the heat sealable layer, a semi-crystalline nylon layer secured adjacent to the first tie layer, a second tie layer secured adjacent to the semi-crystalline nylon layer, and a heat sealable layer secured adjacent to the second tie layer. A fourth heat sealable layer is secured adjacent to the co-extruded layer.Type: GrantFiled: July 19, 2000Date of Patent: February 12, 2002Assignee: Westvaco CorporationInventors: Kenneth John Bryden, David Hillis Hawes, Ralph Scott Peterson
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Patent number: 6333087Abstract: Oxygen scavenging materials incorporated into or attached to a package such as a gable-top or rectangular carton, used to package foods, beverages or other oxygen sensitive materials, and thereby increase shelf-life by decreasing oxygen in the headspace of the package, and decreasing oxidation of the packaged product.Type: GrantFiled: August 27, 1998Date of Patent: December 25, 2001Assignee: Chevron Chemical Company LLCInventors: Gary D. Jerdee, James P. Leonard, Ta Yen Ching, Joseph L. Goodrich, Brad D. Rodgers, Richard P. Schmidt
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Patent number: 6322899Abstract: A plastic laminate with two or more plastic layers, at least one of which is polyhydroxyalkanoate, such as hydroxybutyrate/hydroxyvalerate copolymer. Next to the polyhydroxyalkanoate layer and attached to it is a layer of biodegradable polyester amide.Type: GrantFiled: May 6, 1999Date of Patent: November 27, 2001Assignee: UPM-Kymmene OyjInventors: Hannu Karhuketo, Heikki Korpela
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Patent number: 6312822Abstract: A thermoplastic polyolefin composition suitable for use as a coating for a photographic support includes an optical brightener and a polar additive. The polar additive substantially compatibilizes the polar optical brightener with the non-polar polyolefin. A method for adding a polar additive to a polyolefin is also disclosed.Type: GrantFiled: November 25, 1998Date of Patent: November 6, 2001Inventors: Gether Irick, Jr., Joe L. Farrar
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Patent number: 6303207Abstract: A fiber glass mat especially useful for bonding to wood contains glass fibers and a “B” staged resin, and the method of making the mat, are disclosed. A substantial portion of the resin binder can be a furfural alcohol, phenol formaldehyde, melamine formaldehyde, or any other resin that can be “B” staged.Type: GrantFiled: July 20, 1998Date of Patent: October 16, 2001Assignee: Johns Manville International, Inc.Inventor: Richard Emil Kajander
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Patent number: 6303212Abstract: An ink jet recording element comprising a support having thereon an image-recording layer comprising a binder and a polymeric mordant, the image-recording layer providing a total concentration of charged polymeric binding sites greater than about 3×1026/m3, and the image-receiving layer having a concentration of salts providing charges, opposite to the charge of the binding sites, of less than about 5.8×1026 charges/m3, the salt having a molecular weight of less than 10,000 grams/mole.Type: GrantFiled: September 13, 1999Date of Patent: October 16, 2001Assignee: Eastman Kodak CompanyInventors: Lori Shaw-Klein, Peter J. Ghyzel
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Patent number: 6271303Abstract: An interpolymer consisting essentially of units derived from vinyl fluoride and at least two highly fluorinated monomers, at least one of the highly fluorinated monomers introducing into the polymer a side chain of at least one carbon atom. Films from these interpolymers have substantially reduced haze, low surface tension, and can be made to form solutions in common polar organic solvents that are stable at room temperature. The extremely low surface tensions obtained with these interpolymer films provide enhanced stain resistance and improved release properties compared to polyvinyl fluoride or known vinyl fluoride interpolymers.Type: GrantFiled: November 13, 2000Date of Patent: August 7, 2001Assignee: E. I. du Pont de Nemours and CompanyInventor: Ronald Earl Uschold
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Publication number: 20010003623Abstract: A fiber reinforced composite wood flooring is designed particularly for use in van-type truck trailers which experience adverse operating conditions due to heavy lift truck traffic on the top side and water spray during rainy periods on the bottom side. The composite wood flooring comprises edge-glued laminated wood which is underlaid with a thin layer of fiber reinforced plastic. The top surface of the composite wood floor is the same as that of a conventional laminated wood floor. The fiber reinforced plastic underlay is composed of glass and/or carbon fibers embedded in a polymeric resin such as epoxy, phenolic, vinyl ester, polypropylene or polyamide resin. The fiber reinforcement is designed to enhance the mechanical properties of the flooring in the longitudinal and transverse directions of the floor. The fiber reinforced plastic improves the fatigue resistance of the composite wood flooring and prevents water leakage into the trailer through the floor boards.Type: ApplicationFiled: December 7, 2000Publication date: June 14, 2001Applicant: Havco Wood Products, Inc.Inventors: Gopalkrishna Padmanabhan, Lokeswarappa R. Dharani, James N. Vangilder
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Patent number: 6210792Abstract: The invention relates to a composition comprising a thermoplastic polymer and wood fiber composite that can be used in the form of a linear extrudate or thermoplastic pellet to manufacture structural members. The polymer, the fiber or both can be modified to increase compatibility. The wood fiber composite structural members can be manufactured in an extrusion process or an injection molding process. The linear extrudate or pellet can have a cross-section of any arbitrary shape, or can be a regular geometric. The pellet can have a cross-section shape having a volume of at least about 12 mm3. Preferably the pellet is a right cylindrical pellet having a minimum radius of about 1.5 mm and a minimum length of 1 mm weighing at least 14 mg. The invention also relates to an environmentally sensitive recycle of waste streams. The polymer and wood fiber composite contains an intentional recycle of a waste stream comprising polymer flakes or particles or wood fiber.Type: GrantFiled: November 12, 1998Date of Patent: April 3, 2001Assignee: Andersen CorporationInventors: Kasyap V. Seethamraju, Neil J. Beaverson, Kurt E. Heikkila, Michael J. Deaner
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Patent number: 6180172Abstract: A process and apparatus for edge coating a substrate is provided. A process provides a layer of a formable coating material on a transfer belt which layer of formable material has a variable thickness over the width of the layer, applying a layer of the formable coating material on the transfer belt to the edge surface to produce a coated edge surface and smoothing the coated edge surface by contact with a smoothing belt. The coating on the edge surface is sufficiently thick to cover and smooth irregularities in the edge surface of the substrate. The coated edge surface can be further treated by the usual methods for coating edge surfaces of flat substrates. The apparatus comprises the roller or nozzle to provide the layer of formable material of variable thickness on the transfer belt, the transfer belt carries the coating material to the edge surface and the transfer belt can act as a smoothing belt to provide an edge surface with the coating material with all of the irregularities obscured.Type: GrantFiled: May 29, 1997Date of Patent: January 30, 2001Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Rainer Hasenkamp, Wigand Staehlin
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Patent number: 6168870Abstract: A method of impregnating a polymer plastic plug with wood preservative. A first step involves dehydrating a polymer plastic plug to reduce its naturally occurring moisture content. A second step involves introducing liquid wood preservative into the polymer plastic plug while the polymer plastic plug is in a dehydrated state by immersing it in the liquid wood preservative and boiling the liquid wood preservative at temperatures that are less than that required to turn the polymer plastic plug into a molten state. In accordance with the teachings of this method liquid wood preservative is absorbed into the dehydrated polymer plastic plug in place of the naturally occurring moisture content.Type: GrantFiled: August 24, 1998Date of Patent: January 2, 2001Assignee: Genics Inc.Inventor: Wesley James Wall