Impregnated Or Coated Cellulosic Material Patents (Class 428/503)
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Patent number: 9757928Abstract: A method for forming of a building panel with a surface including a thermosetting resin such that tension created during curing of the surface is reduced or eliminated.Type: GrantFiled: September 7, 2012Date of Patent: September 12, 2017Assignee: CERALOC INNOVATION ABInventors: Darko Pervan, Tony Pervan
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Patent number: 9321278Abstract: Panels having a decorative surface may include a substrate and a top layer, and the top layer may include a paper layer having a printed pattern. A method for manufacturing such panels may involve providing the paper layer with thermosetting resin, and providing the resin provided paper layer with at least a portion of the printed pattern. Providing the portion of the printed pattern may involve depositing pigment containing inks on the paper layer using a digital inkjet printer. The dry weight of the total volume of the pigment containing inks deposited on the paper layer is lower than 15 grams per square meter.Type: GrantFiled: August 1, 2013Date of Patent: April 26, 2016Assignee: UNILIN, BVBAInventors: Benjamin Clement, Luc De Boe
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Patent number: 9144782Abstract: A process for continuously producing water-absorbing polymer particles by polymerizing a monomer solution comprising acrylic acid and/or salts thereof, wherein the acrylic acid supplied has a dimeric acrylic acid content of at least 0.02% by weight and the dimeric acrylic acid content is kept essentially constant.Type: GrantFiled: June 19, 2014Date of Patent: September 29, 2015Assignee: BASF SEInventors: Rüdiger Funk, Thomas Pfeiffer, Jürgen Schröder
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Patent number: 8945716Abstract: A process for producing water-absorbing polymer particles, comprising polymerization of a monomer solution or suspension, classification and drying of the resulting moist polymer gel, and comminution of the coarse fraction removed in the classification of the moist polymer gel, wherein the classification of the moist polymer gel is performed by means of a plurality of bar decks arranged in a cascade in a vibrating frame.Type: GrantFiled: June 18, 2013Date of Patent: February 3, 2015Assignee: BASF SEInventors: Roland Krauss, Thomas Gieger, Volker Klock
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Patent number: 8834992Abstract: A thermoplastic laminate plank is described wherein the thermoplastic laminate plank comprises a core, a print layer, and optionally an overlay. The core comprises at least one thermoplastic material and has a top surface and bottom surface wherein a print layer is affixed to the top surface of the core and an overlay layer is affixed to the top surface of the print layer. Optionally, an underlay layer can be located and affixed between the bottom surface of the print layer and the top surface of the core. A method of making the thermoplastic laminate plank is further described which involves extruding at least one thermoplastic material into the shape of the core and affixing a laminate on the core, wherein the laminate comprises an overlay affixed to the top surface of the print layer and optionally an underlay layer affixed to the bottom surface of the print layer.Type: GrantFiled: September 13, 2011Date of Patent: September 16, 2014Assignee: Valinge Innovation ABInventors: Hao A. Chen, Richard Judd
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Patent number: 8658274Abstract: A thermoplastic laminate plank is described wherein the thermoplastic laminate plank comprises a core, a print layer, and optionally an overlay. The core comprises at least one thermoplastic material and has a top surface and bottom surface wherein a print layer is affixed to the top surface of the core and an overlay layer is affixed to the top surface of the print layer. Optionally, an underlay layer can be located and affixed between the bottom surface of the print layer and the top surface of the core. In addition, a method of making the thermoplastic laminate plank is further described which involves extruding at least one thermoplastic material into the shape of the core and affixing a laminate on the core, wherein the laminate comprises an overlay affixed to the top surface of the print layer and optionally an underlay layer affixed to the bottom surface of the print layer.Type: GrantFiled: September 14, 2011Date of Patent: February 25, 2014Assignee: Mannington Mills, Inc.Inventors: Hao A. Chen, Richard Judd
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Patent number: 8580373Abstract: Embossed decorative boards having first and second opposite edges with a third and a fourth adjacent edge. The board includes an upper side decorative surface an upper side embossing and a base layer. The embossing is comprised by surface structure areas of which at least four are first and second outermost surface structure areas. The first outermost surface structure area has each one end edge coinciding with the first edge of the board while the second outermost surface structure area has each one end edge coinciding with the second edge. At least two surface structures having different visual characteristics are used, wherein two adjacent outermost surface structure areas within the same board have different surface structures. The end edge of the outermost surface structure areas with the same ordinal number of the first edge and the second edge has mainly the same length while the surface structure is similar.Type: GrantFiled: September 14, 2012Date of Patent: November 12, 2013Assignee: Pergo (Europe) ABInventor: Ake Sjoberg
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Patent number: 8475891Abstract: This invention provides an embossed release paper that has high heat resistance and embossing properties. The embossed release paper comprises a paper base material, an ionizing radiation-cured resin layer, and a heat-cured silicone layer stacked in that order, the embossed release paper having embosses. The embossed release paper has high heat resistance and thus is suitable for use in synthetic leather production and melamine decorative sheet production that involve surface emboss pattern formation.Type: GrantFiled: October 3, 2008Date of Patent: July 2, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Noriyuki Shiina, Kyoko Kogo
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Patent number: 8287985Abstract: Embossed decorative boards (1) having a first and a second opposite edge (1I and 1II respectively) with a third and a fourth adjacent edge (1III and 1Iv respectively). The board (1) include an upper side decorative surface (2) an upper side embossing and a base layer. The embossing is comprised by surface structure areas (10) of which at least four are first and second outermost surface structure areas (10L and 10R respectively). The first outermost surface structure areas (10L) has each one end edge coinciding with the first edge (1I) of the board (1) while the second outermost surface structure areas (10R) has each one end edge coinciding with the second edge (1II). At least two surface structures having different visual characteristics is used, wherein two adjacent outermost surface structure areas (10L and 10R respectively) within the same board (1) has different surface structures. The first outermost surface structure areas (10L) of the first edge (1I) is numbered LI, LII, LIII etc.Type: GrantFiled: May 3, 2002Date of Patent: October 16, 2012Assignee: Pergo (Europe) ABInventor: Ake Sjoberg
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Patent number: 8021741Abstract: A thermoplastic laminate plank is described wherein the thermoplastic laminate plank comprises a core, a print layer, and optionally an overlay. The core comprises at least one thermoplastic material and has a top surface and bottom surface wherein a print layer is affixed to the top surface of the core and an overlay layer is affixed to the top surface of the print layer. Optionally, an underlay layer can be located and affixed between the bottom surface of the print layer and the top surface of the core. In addition, a method of making the thermoplastic laminate plank is further described which involves extruding at least one thermoplastic material into the shape of the core and affixing a laminate on the core, wherein the laminate comprises an overlay affixed to the top surface of the print layer and optionally an underlay layer affixed to the bottom surface of the print layer.Type: GrantFiled: June 29, 2010Date of Patent: September 20, 2011Assignee: Mannington Mills, Inc.Inventors: Hao A. Chen, Richard Judd
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Publication number: 20110171473Abstract: A multilayer lignocellulose-containing molding comprising A) a middle layer or a plurality of middle layers comprising lignocellulose-containing particles which is/are obtainable by using a binder (a) and B) a covering layer or a plurality of covering layers comprising lignocellulose-containing particles which is/are obtainable by using a binder (b), the binder (a) being selected from the group consisting of (a1) formaldehyde resins and (a2) an organic isocyanate having at least two isocyanate groups; the binder (b) comprising the following components: an aqueous component (I) comprising (i) a polymer A which is composed of the following monomers: a) from 70 to 100% by weight of at least one ethylenically unsaturated mono- and/or dicarboxylic acid (monomer(s) A1) and b) from 0 to 30% by weight of at least one further ethylenically unsaturated monomer which differs from the monomers A1 (monomer(s) A2) and, optionally, (ii) a low molecular weight crosslinker having at least two functional groups which aType: ApplicationFiled: September 9, 2009Publication date: July 14, 2011Applicant: BASF SEInventors: Daniel Käsmayr, Stephan Weinkötz, Christian Beil, Michael Schmidt, Michael Finkenauer
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Publication number: 20110165411Abstract: The present invention relates to a process for the preparation of a panel comprising ligno-cellulose particles such as a strand-like particles, comprising the steps of treating ligno-cellulose particles at least partially covered with epicuticular wax (2) with ozone (7) at a temperature of at least 30 degrees Celsius, mixing the resulting product with an water-based adhesive resin composition to obtain a resinated particle composition, and pressing and at least partially curing the resinated particle composition to obtain a panel.Type: ApplicationFiled: April 29, 2009Publication date: July 7, 2011Inventors: Johannes Gerardus Hubertus Marie Housmans, Hubertus Marie Christine Stijnen
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Patent number: 7829176Abstract: Surface structured decorative boards (1) having a first and a second opposite edge (1I and 1II respectively). The board (1) include an upper side decorative surface (2) an upper side surface structure and a base layer. The structure is comprised by at least two surface grades (10) forming a decorative surface pattern on said upper side, said pattern being applied in predetermined fixed positions (P) on the first and the second edges (1I and 1II respectively). The first edge pattern positions (PL) and the second edge pattern positions (PR) are matched so that the pattern continues over the first and second edges (1I and 1II respectively) of adjacent boards (1).Type: GrantFiled: December 4, 2002Date of Patent: November 9, 2010Assignee: Pergo AGInventor: Ake Sjoberg
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Patent number: 7763345Abstract: A thermoplastic laminate plank is described wherein the thermoplastic laminate plank comprises a core, a print layer, and optionally an overlay. The core comprises at least one thermoplastic material and has a top surface and bottom surface wherein a print layer is affixed to the top surface of the core and an overlay layer is affixed to the top surface of the print layer. Optionally, an underlay layer can be located and affixed between the bottom surface of the print layer and the top surface of the core. In addition, a method of making the thermoplastic laminate plank is further described which involves extruding at least one thermoplastic material into the shape of the core and affixing a laminate on the core, wherein the laminate comprises an overlay affixed to the top surface of the print layer and optionally an underlay layer affixed to the bottom surface of the print layer.Type: GrantFiled: August 22, 2008Date of Patent: July 27, 2010Assignee: Mannington Mills, Inc.Inventors: Hao A. Chen, Richard Judd
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Patent number: 7682702Abstract: A process for producing water-absorbing polymeric particles comprises the steps of i) drying a hydrogel to produce a dried hydrogel, ii) separating incompletely dried polymeric particles from the dried hydrogel, and iii) drying the separated-off incompletely dried polymeric particles, wherein the separated incompletely dried polymeric particles are comminuted before said drying iii).Type: GrantFiled: November 10, 2006Date of Patent: March 23, 2010Assignee: BASF SEInventor: Meinhard Nitschke
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Publication number: 20090197106Abstract: A compact laminated assembly based upon a saturation grade paper made using a grass fiber or grass/wood fiber blend, instead of the conventional wood fibers from trees. A plurality of the grass paper sheets are substantially impregnated using a thermosetting resin and stacked in a superimposed relationship. The assembled stack of resin impregnated paper sheets are heat and pressure consolidated into a substantially homogenous monolithic mass with the thermosetting resin being substantially completely cured.Type: ApplicationFiled: January 31, 2008Publication date: August 6, 2009Inventor: Joel Klippert
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Patent number: 7547470Abstract: A moisture impermeable edge reinforced wood composite structural system includes a wood composite panel having opposing faces, at least one moisture impermeable reinforcement edge, and at least one moisture impermeable reinforcement perimeter zone. The perimeter zone is a coating of a moisture impermeable reinforcement/resin matrix material which provides the structural system with improved fastener performance and reduced panel edge swell as a result of moisture exposure.Type: GrantFiled: April 28, 2006Date of Patent: June 16, 2009Assignee: University of Maine System Board of TrusteesInventors: Douglas J. Gardner, Stephen M. Shaler, Lech Muszynski, Ciprian Pirvu, Jungil Son
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Patent number: 7524555Abstract: A pre-finished, moisture resistant and durable building material is provided. In one embodiment the building material includes a fiber cement substrate having a first side and a second side, at least one resin impregnated paper over at least one of the first and second sides, and a stress-relieving polymeric film between the fiber cement substrate and the at least one resin impregnated paper, the polymer film acting as a stress relaxer between the fiber cement substrate and the at least one resin impregnated paper. In another embodiment, a stress-relieving polymeric coating or film is provided between resin penetrated sheets and a substrate. In another embodiment, a process for bonding the resin penetrated sheets to the substrate is provided.Type: GrantFiled: February 3, 2004Date of Patent: April 28, 2009Assignee: James Hardie International Finance B.V.Inventors: Weiling Peng, James A. Gleeson, Donald J. Merkley
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Patent number: 7419717Abstract: A thermoplastic laminate plank is described wherein the thermoplastic laminate plank comprises a core, a print layer, and optionally an overlay. The core comprises at least one thermoplastic material and has a top surface and bottom surface wherein a print layer is affixed to the top surface of the core and an overlay layer is affixed to the top surface of the print layer. Optionally, an underlay layer can be located and affixed between the bottom surface of the print layer and the top surface of the core. In addition, a method of making the thermoplastic laminate plank is further described which involves extruding at least one thermoplastic material into the shape of the core and affixing a laminate on the core, wherein the laminate comprises an overlay affixed to the top surface of the print layer and optionally an underlay layer affixed to the bottom surface of the print layer.Type: GrantFiled: April 20, 2007Date of Patent: September 2, 2008Assignee: Mannington Mills, Inc.Inventors: Hao A. Chen, Richard Judd
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Patent number: 7407700Abstract: A coated paper is white and glossy enough to give satisfaction as a printing paper, exhibits a good printability in offset sheet-fed printing and a high printing gloss, and does not degrade the print efficiency. The coated paper is characterized by having two or more coating layers composed mainly of a pigment and an adhesive on at least one side of a base paper. When ink is transferred onto the paper, the ink settability is relatively low in the early stage of the drying process and relatively high in the final stage.Type: GrantFiled: October 20, 2005Date of Patent: August 5, 2008Assignee: Oji Paper Co., Ltd.Inventors: Takayuki Kishida, Yoshiki Kojima, Nobuo Yamada, Yasuhiro Arai, Tetsuya Hirabayashi
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Patent number: 7399529Abstract: Resin compositions, methods of forming such resin compositions, methods of using such resin compositions and substrates treated with such resin compositions are disclosed. One of such resin compositions contains no formaldehyde and is useful as a binder. Such resin composition comprises the reaction product of: a—melamine, b—at least one aldehyde of formula (1) as defined in the specification, c—a cross linking agent, wherein the cross linking agent is glyoxylic acid, and d—at least one polyol having 2 or more than 2 hydroxyl groups. The resin composition of the present invention can provide performance characteristics to which they are applied.Type: GrantFiled: December 15, 2006Date of Patent: July 15, 2008Assignee: Clariant (France)Inventors: Gregory J. Hopkins, William C. Floyd
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Patent number: 7377998Abstract: An overlay paper is described which comprises a cellulosic non-woven to which a UV stabilizing agent is applied in an amount from 0.001 to 10% by weight, based on the grammage of the non-woven used, a process for producing the same and the use of the same for the production of a laminate.Type: GrantFiled: December 19, 2002Date of Patent: May 27, 2008Assignee: Papierfabrik Schoeller & Hoesch GmbH & Co. KGInventors: Stefan Sick, Horst Blum, Robert Hansmann
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Patent number: 7235503Abstract: The invention relates to a decorative panel comprising a carrier layer and a decorative layer on one or both surfaces of said carrier layer, which decorative layer comprises a synthetic resin layer with a base of one or more radiation-curable components. In addition to that, the present invention relates to a method for manufacturing the decorative panel.Type: GrantFiled: May 14, 2004Date of Patent: June 26, 2007Assignee: Trespa International B.V.Inventors: Robert W. M. Huusken, Gustav D. Rasmusson
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Patent number: 7229698Abstract: Laminated board for exterior cladding formed from a core (13) of kraft paper impregnated with phenolic resin, at least one layer of natural wood (14) and at least one surface covering layer (15) including a coating film (17) and a substrate film (16). The coating film (17) is a single-layer film based on polymethyl methacrylate (PMMA), a two-layer film with its lower layer based on polymethyl methacrylate and its upper layer based on polyvinylidine fluoride (PVDF), or a PMMA/PVDF single-layer film. The substrate film (16) consists of a paper impregnated with a compound formed from 80-95% by weight of a phenolic resin and 5-20% by weight of a polymer promoting adhesion of the coating film (17), such as an acrylic, melamine or urea polymer or a combination thereof.Type: GrantFiled: July 8, 2003Date of Patent: June 12, 2007Assignee: Composites Gurea, S.A.Inventors: Fernando Encío Martinez, Santiago Bastida Sagarzazu
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Patent number: 6986934Abstract: A thermoplastic laminate plank is described wherein the thermoplastic laminate plank comprises a core, a print layer, and optionally an overlay. The core comprises at least one thermoplastic material and has a top surface and bottom surface wherein a print layer is affixed to the top surface of the core and an overlay layer is affixed to the top surface of the print layer. Optionally, an underlay layer can be located and affixed between the bottom surface of the print layer and the top surface of the core. In addition, a method of making the thermoplastic laminate plank is further described which involves extruding at least one thermoplastic material into the shape of the core and affixing a laminate on the core, wherein the laminate comprises an overlay affixed to the top surface of the print layer and optionally an underlay layer affixed to the bottom surface of the print layer.Type: GrantFiled: August 2, 2004Date of Patent: January 17, 2006Assignee: Mannington Mills, Inc.Inventors: Hao A. Chen, Richard Judd
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Patent number: 6902794Abstract: A coated paper used for printing and manufacturing method thereof. The coated paper comprises a coated layer mainly compose of a pigment and an adhesive on a base paper or paper web. The coated paper also comprises the thermal shrinkage force (R) which satisfies following formula when measured pursuant to the measuring method described in the specification; 0?R?45 gf A sample coated paper is moisture-adjusted in accordance with JIS-P-8111. Then, it will be cut into specific dimension along with orthogonally to the cross direction. Next, the paper will be put through Thermo Mechanical Analyzer to obtain R that is measured by predetermined technique. The coated paper will be obtained easily by using a base paper coated with PVA having a saponification degree of not less than 85 mol % in an amount of 0.5-5 g/m2 per side surface after the coating material was dried and dried.Type: GrantFiled: June 28, 2002Date of Patent: June 7, 2005Assignee: Oji Paper Co., Ltd.Inventors: Tetsuya Hirabayashi, Seiji Fujiwara, Terunobu Fukui
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Patent number: 6703140Abstract: Sandwich type board, for application in the construction field, of the type comprised of side and counterside, which has the following successive layers, from the center to the outside: a cellulose core impregnated in phenolic resin, a cellulose film impregnated in melamine, a laminated wood panel treated with phenolic resin, a tone package of one to three translucent and/or transparent films of cellulose, each of them impregnated in a resin to be chosen between melamine, melamine-acrylic, phenolic, melamine-phenolic, a multi-layer transparent/translucent acrylic film and a surface finish obtained by means of a demoulding film in the board press process.Type: GrantFiled: July 23, 1999Date of Patent: March 9, 2004Assignee: Prodema, S.A.Inventor: Javier Ayestaran
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Patent number: 6689451Abstract: This invention relates generally to a pre-finished, moisture resistant and durable building material that is able to diffuse stress caused by variations in temperature and climate. One preferred embodiment of the building material includes a fiber cement substrate, at least one resin impregnated paper, and a stress-relieving elastomeric film between the fiber cement substrate and the resin impregnated paper, wherein the elastomeric film acts as a stress relaxer between the fiber cement substrate and the one resin impregnated paper.Type: GrantFiled: November 20, 2000Date of Patent: February 10, 2004Assignee: James Hardie Research Pty LimitedInventors: Weiling Peng, James A. Gleeson, Donald J. Merkley
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Patent number: 6641629Abstract: A coating composition for forming abrasion-resistant, high clarity coatings is described. It has been found that a macrocrystalline or single crystal mineral abrasive can be added at high levels, about 5 to about 80 percent by weight, to art-recognized film-forming resin compositions for producing coatings exhibiting exceptional abrasion resistance and clarity. Such a coating composition is useful for application to surfaces including wood, vinyl, tile, rubber modified cement, marble, metal, plastic, and laminated surfaces.Type: GrantFiled: August 20, 2002Date of Patent: November 4, 2003Inventors: Eugen Safta, Frank Bor-Her Chen, Harvey Richard Forrest, Gregory David Muselman
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Patent number: 6617009Abstract: A thermoplastic laminate plank is described wherein the thermoplastic laminate plank comprises a core, a print layer, and optionally an overlay. The core comprises at least one thermoplastic material and has a top surface and bottom surface wherein a print layer is affixed to, the top surface of the core and an overlay layer is affixed to the top surface of the print layer. Optionally, an underlay layer can be located and affixed between the bottom surface of the print layer and the top surface of the core. In addition, a method of making the thermoplastic laminate plank is further described which involves extruding at least one thermoplastic material into the shape of the core and affixing a laminate on the core, wherein the laminate comprises an overlay affixed to the top surface of the print layer and optionally an underlay layer affixed to the bottom surface of the print layer.Type: GrantFiled: December 14, 1999Date of Patent: September 9, 2003Assignee: Mannington Mills, Inc.Inventors: Hao A. Chen, Richard Judd
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Publication number: 20030134988Abstract: The present invention provides a production process for a transparent heat-resistant resin, and further, a transparent heat-resistant resin and uses therefor, wherein the production process involves high dealcoholation conversion and a low content of residual volatiles in the resultant resin, and therefore can prevent foam or silver streak from occurring in the molded product, and further, facilitates melt-molding such as injection molding, and is fit for industrial production, and involves good efficiency.Type: ApplicationFiled: November 15, 2002Publication date: July 17, 2003Applicant: Nippon Shokubai Co., Ltd.Inventors: Hideo Asano, Kazumi Fujioka
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Publication number: 20030108761Abstract: Paper products are provided with antibiotic and antimicrobial materials at the time the paper products are made. The antimicrobial materials can be incorporated into the product either during original manufacture, or by application after the paper is formed. Incorporation of these materials into various paper products enhances the ability of these products to minimize surface contamination by unwanted bacteria.Type: ApplicationFiled: September 12, 2002Publication date: June 12, 2003Inventor: Tammy Eddlemon
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Publication number: 20030004278Abstract: The present invention provides a production process for a transparent heat-resistant resin, and further, a transparent heat-resistant resin and uses therefor, wherein the production process involves high dealcoholation conversion and a low content of residual volatiles in the resultant resin, and therefore can prevent foam or silver streak from occurring in the molded product, and further, facilitates melt-molding such as injection molding, and is fit for industrial production, and involves good efficiency.Type: ApplicationFiled: December 2, 1999Publication date: January 2, 2003Inventors: HIDEO ASANO, KAZUMI FUJIOKA
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Patent number: 6436159Abstract: A coating composition for forming abrasion-resistant, high clarity coatings is described. It has been found that a macrocrystalline or single crystal mineral abrasive can be added at high levels, about 5 to about 80 percent by weight, to art-recognized film-forming resin compositions for producing coatings exhibiting exceptional abrasion resistance and clarity. Such a coating composition is useful for application to surfaces including wood, vinyl, tile, rubber modified cement, marble, metal, plastic, and laminated surfaces.Type: GrantFiled: December 8, 2000Date of Patent: August 20, 2002Assignee: Lilly Industries, Inc.Inventors: Eugen Safta, Frank Bor-Her Chen, Harvey Richard Forrest, Gregory David Muselman
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Patent number: 6187415Abstract: Multilayered dimensional laminates with improved depth appearance are provided that include a plurality of decorative layers having the same or different patterns layered so that a portion of each pattern is visible in the final dimensional laminate. Such laminate may further include a backing or core. Methods for making and using the multilayered dimensional laminates are also provided.Type: GrantFiled: September 26, 1998Date of Patent: February 13, 2001Assignee: Premark RWP Holdings, Inc.Inventor: Peter C. Gaa
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Patent number: 6180213Abstract: Disclosed is a heat sensitive planographic printing plate material comprising a support and provided thereon, a heat sensitive layer containing 10 to 98 weight % of at least one hydrophilic resin selected from the group consisting of gelatin, polyvinyl alcohol and carboxymethyl cellulose, and 2 to 50 weight % of a cross-linking agent cross-linking the hydrophilic resin.Type: GrantFiled: September 14, 1998Date of Patent: January 30, 2001Assignee: Konica CorporationInventors: Takaaki Kuroki, Yasuo Kojima, Saburou Hiraoka, Takeo Akiyama
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Patent number: 6037034Abstract: A foil for forming a surface protection layer on a profiled body is produced by a method including forming a carrier foil impregnated with an impregnating resin which is an aqueous condensation resin having a higher volatile component content during coating and a lower volatile component content during lacquering, and applying a lacquer layer of a lacquer which is an aqueous system of a polymerisate containing an OH-group, wherein the foil prior to its application on the profile body has a relatively low end moisture.Type: GrantFiled: December 10, 1996Date of Patent: March 14, 2000Assignee: Werzalit AG & Co.Inventors: Bernd Asseier, Martin Dietz, Jorg Golombek
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Patent number: 5962603Abstract: An aqueous composition containing an acid-hardenable melamine-formaldehyde resin and a nitrogen-containing acidic phosphorus curing agent made from either phosphoric acid or phosphorous acid which is curable to an intumescent composition.Type: GrantFiled: July 23, 1996Date of Patent: October 5, 1999Assignee: Georgia-Pacific Resins, Inc.Inventors: Shahid P. Qureshi, David A. Hutchings
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Patent number: 5925211Abstract: A layered composite product for use as a floorboard, a door, a cabinet, a wall, etc. is disclosed. The product is a layered structure that includes a rigid substrate layer having two substantially planar sides, a resin-saturated sheet layer disposed on each of the substantially flat sides, and a veneer layer disposed on at least one of the sheet layers. Also provided is a method of making the aforementioned product, the method comprising the steps of forming the layered structure, and then compressing the structure in a pressing apparatus for a time sufficient to cure the resin at under heat and pressure.Type: GrantFiled: April 21, 1997Date of Patent: July 20, 1999Assignee: International Paper CompanyInventor: Michael E. Rakauskas
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Patent number: 5891937Abstract: An absorbent agriculture residue product and method of making the product. Preferably the agriculture residue material is reduced in size, adhesive added, consolidated to form panels or other shapes and heated to cure the adhesive. Preferably, the agriculture material is reduced in size from less than about 2 inches and the adhesive is present in an amount ranging from between about 2% to about 20% by dry weight. The products possess good absorption characteristics, durability and the ability to retain absorbed liquids upon application of pressure to saturated panels.Type: GrantFiled: March 11, 1996Date of Patent: April 6, 1999Assignee: Regents of the University of MinnesotaInventors: Larry E. Berg, Brian K. Brashaw, Chris F. Edwardson, Roy D. Adams, Robert J. Vatalaro
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Patent number: 5837376Abstract: Improvements in the construction of postformable laminates are disclosed by the provision of a single high basis weight sheet exhibiting improved saturation and resin pick up characteristics and formed predominantly of hardwood pulp which pulp has been mechanically treated to effectively impart kinking and curling to the individual pulp fibers.Type: GrantFiled: December 21, 1995Date of Patent: November 17, 1998Assignee: Westvaco CorporationInventors: David E. Knox, Edward P. Klein, Robert C. Streisel, Stanley M. Nuzum
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Patent number: 5820997Abstract: A decorative, high-pressure laminate produced with a sorbitol-modified melamine-formaldehyde resin and methods of making high-pressure laminates.Type: GrantFiled: April 23, 1996Date of Patent: October 13, 1998Assignee: Georgia-Pacific Resins, Inc.Inventors: Ben Gapud, Mark Peters
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Patent number: 5766752Abstract: A high pressure laminate is made of several layers of paper, including from bottom to top core sheets, a decor sheet and an overlay sheet. The core sheets are either composed of cellulose fibers or composed of 30 to 90 weight percent cellulose acetate fibers and 70 to 10 weight percent cellulose fibers. The core sheets are respectively coated with either a lamination polymer or a plasticizer. The decor sheet is composed of a mixture and a conventional amount of paper making dye. The mixture comprises 30 to about 90 weight percent cellulose acetate fibers, 10 to 70 weight percent cellulose fibers and 0 to 20 weight percent fillers. The decor sheet is coated with a plasticizer. The overlay sheet is composed of cellulose fibers and is coated with a lamination polymer. Upon application of heat and pressure to the several layers a laminate is formed having thermoplastic properties, improved postformability and a significant reduction in the release of volatile organics during formation.Type: GrantFiled: December 7, 1995Date of Patent: June 16, 1998Assignee: Eastman Chemical CompanyInventors: Stephen Todd Cox, Melvin Glenn Mitchell, Paul Jay Kennedy, Guy Fostine Massie, Jr., Freddie Wayne Williams
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Patent number: 5750237Abstract: A recyclable double-faced liner bard, the board having a top layer, a medium corrugated layer, and a bottom layer, the top layer having a coating formed from an aqueous composition comprising (A) an emulsion of a curable butadience-styrene copolymer and (B) TiO.sub.2, the medium layer having a coating formed from an aqueous composition containing an emulsion of wax particles and a binder (preferably sodium alginate); and the bottom layer having a coating formed from an aqueous composition comprising about 10 to 85 percent by weight of a liquid curable styrene-butadiene copolymer (or a carboxylated copolymer) and wax.Type: GrantFiled: May 31, 1995Date of Patent: May 12, 1998Assignee: Dallas Enviro-Tek International, Inc.Inventors: Gaylord Allin, Mark Gorham
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Patent number: 5714269Abstract: A film suitable for continuous application to particle boards in the making of laminated particle board is disclosed, which film is stem penetrable and impregnated with semi-cured impregnating resins and provided with a partially cured layer of glue on one side and a fully cured lacquer layer on the other side, which film is permeable to gases generated during production of laminated particle board. A process for producing such a film is also disclosed and also a method for producing a laminated particle board by means of a continuous direct lamination process.Type: GrantFiled: June 29, 1995Date of Patent: February 3, 1998Assignee: Casco Nobel ABInventor: Francisco Munoz Madrid
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Patent number: 5547738Abstract: Linerless label stock is produced from a single substrate utilizing a coating machine by moving the substrate through the coating machine and applying a tie coating to the substrate first face, a release coating to the substrate second face, and a pressure sensitive adhesive to the tie coating. The tie coating comprises a dispersion of a pigment, such as silica, with a binder, such as polyvinyl alcohol. The substrate is cut to form individual labels, and is rolled up into a roll with the release coated second face on the outside of the roll. Printing may be applied to the substrate prior to coating, or to the release coating.Type: GrantFiled: September 12, 1994Date of Patent: August 20, 1996Assignee: Moore Business Forms, Inc.Inventors: Nancy G. Mitchell, Joseph W. Langan, Adele C. Shipston, Timothy J. Russ, Douglas M. Smith
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Patent number: 5473013Abstract: A process for making a spray dried redispersible polymer powder, especially a VAE copolymer powder, by spray drying a polymer emulsion containing a polyvinyl alcohol redispersant. A sufficient amount of the total polyvinyl alcohol redispersant is added to the polymer emulsion prior to spray drying and the remaining amount of polyvinyl alcohol redispersant is added as a dry powder to the spray dried polymer powder.Type: GrantFiled: May 2, 1994Date of Patent: December 5, 1995Assignee: Air Products and Chemicals, Inc.Inventors: Thomas E. Zeller, Randall P. Bright, Mark T. Phillips
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Patent number: 5443902Abstract: Improvements in the construction of postformable laminates are disclosed by the provision of a single high basis weight, high coarseness, high kappa number sheet formed predominantly of softwood pulp, preferably southern loblolly pine, which pulp has been treated in a mechanical device that effectively imparts kinking and curling to the individual pulp fibers. The sheet is intended as a replacement for the highly extensible sheet(s) currently located on the back of the laminate farthest away from the core.Type: GrantFiled: January 31, 1994Date of Patent: August 22, 1995Assignee: Westvaco CorporationInventors: David E. Knox, J. Donato Fortin, Harold L. Hintz
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Patent number: 5432258Abstract: The invention provides a transfer paper which comprises a releasable base and as disposed successively thereon at least one picture printing layer, a thermosetting adhesive layer and a release layer, and a transfer process employing the above transfer paper which comprises peeling off the releasable base from the paper, transferring the printing layer and thermosetting adhesive layer as a unit to a substrate and curing the adhesive layer at a temperature of 80.degree.-170.degree. C.Type: GrantFiled: July 8, 1994Date of Patent: July 11, 1995Assignee: Sakura Color Products CorporationInventor: Yasuyuki Yoshimura
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Patent number: 5330846Abstract: Heat-curable, aqueous synthetic resin mixtures for coating woodworking materials, based on etherified melamine/formaldehyde condensates and aqueous synthetic resin dispersions, a process for the preparation of these mixtures and their use for coating woodworking materials.Type: GrantFiled: September 13, 1991Date of Patent: July 19, 1994Assignee: BASF AktiengesellschaftInventors: Wolfgang Eisele, Hans Etling, Walter Pfalzgraf, Walter Pitteroff, Otto Wittmann