Derived From Aldehyde Or Ketone Patents (Class 156/331.3)
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Patent number: 10059028Abstract: The application describes a method of scavenging formaldehyde from a wooden composite comprising urea-formaldehyde or melamine urea-formaldehyde by providing a combination of formaldehyde scavengers in the face and core layers of the composite and further describes the composite produced with these scavengers.Type: GrantFiled: November 12, 2015Date of Patent: August 28, 2018Assignee: FPInnovationsInventors: Yaolin Zhang, Xiang-Ming Wang, Zhenhua Gao
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Patent number: 9790313Abstract: Disclosed are curing compositions for resin systems and in particular for phenolic resin systems and epoxy resin systems, to methods of preparing the curing compositions and to resin systems incorporating same. The curing compositions of the invention are the reaction product of an aldehyde with an amine in the presence of an aprotic solvent.Type: GrantFiled: August 20, 2015Date of Patent: October 17, 2017Assignee: HEXION INC.Inventors: Ganapathy S. Viswanathan, Craig M. Zirkle
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Publication number: 20140014267Abstract: The invention relates to an improved two component adhesive system, a kit comprising said two adhesive components, its use and a method for production of interior wood products, in particular form-pressed products, parquet floor elements and solid wood panels with very low formaldehyde emission and to the interior wood products obtainable having improved properties. The two-component adhesive system comprises adhesive component I comprising a 50-70 wt % melamine-formaldehyde (MF) type resin in 25-40 wt % water and adhesive component II comprising 25-40 wt % of a water based dispersion adhesive, 15-40 wt % of a formaldehyde scavenger and an acidic compound in an amount such that the pH of adhesive component II is 1.5-6.5, wherein adhesive component I and II are to be applied in a weight ratio I:II of 1:0.5 to 1:1.5 and the adhesive system has a molar ratio of formaldehyde (F) to total amino group (F/NH2) between 0.2 and 0.7.Type: ApplicationFiled: February 4, 2013Publication date: January 16, 2014Applicant: DYNEA ASInventors: Astrid PEDERSEN, Kristin GROSTAD, Per SANDBAKKEN
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Patent number: 8323450Abstract: The invention relates to a method of manufacturing a heat storage material that contains heat storage capsules. The heat storage capsules include a phase change material that absorbs and/or discharges latent heat in response to a change in temperature. The phase change material resides within outer shells of the heat storage capsules. The method involves binding abutting peripheral portions of a plurality of heat storage capsules with a molding binder, so as to form an intermediate granular molded heat storage material. An outer peripheral surface portion of the granular molded heat storage material is coated with a coating binder. The coated granular molded heat storage material is then subjected to a treatment that causes the coating binder of the coating layer to polymerize. The invention also relates to heat storage adsorbent materials, and articles (e.g., canisters) that include such heat storage adsorbent materials.Type: GrantFiled: April 22, 2009Date of Patent: December 4, 2012Assignee: Osaka Gas Chemicals Co., Ltd.Inventor: Kenji Seki
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Publication number: 20100236715Abstract: A melamine laminate article, having incorporated therein an isothjazolone antimicrobial agent, is formed by a high-pressure manufacturing process. The melamine resin is compounded with the antimicrobial as a finely divided powder diluted in a liquid forming a dispersion.Type: ApplicationFiled: June 2, 2010Publication date: September 23, 2010Applicant: MICROBAN PRODUCTS COMPANYInventors: William D. Hanrahan, Ivan W. Ong, Laurie W. Pariano
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Patent number: 7342053Abstract: Producing a printed circuit board, by coating a resin composition comprising an aromatic cyanate compound having two or more cyanato groups in a molecule and a radical-polymerizable resin on a circuit substrate, photo-curing the resin composition, and thermally curing the photo-cured resin composition to thereby form an insulation layer, affords an insulation layer with improved surface smoothness and excellent dielectric properties.Type: GrantFiled: January 28, 2005Date of Patent: March 11, 2008Assignee: Ajinomoto Co., Inc.Inventor: Shigeo Nakamura
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Patent number: 6956098Abstract: The substrates of the present invention comprise a polyimide base polymer derived at least in part from collinear monomers together with crankshaft monomers. The resulting polyimide material has been found to provide advantageous properties, particularly for electronics type applications.Type: GrantFiled: September 20, 2002Date of Patent: October 18, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: John Donald Summers, Richard Frederich Sutton, Jr., Brian Carl Auman
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Patent number: 6939432Abstract: The present invention provides an aqueous adhesive composition including a resinous phase dispersed in an aqueous medium, the resinous phase containing (a) a polychloroprene, (b) optionally, a halogenated polyolefin different from (a), and (c) optionally, an aminoplast resin. Further provided is an aqueous adhesive composition of a resinous phase dispersed in an aqueous medium wherein the resinous phase includes (a) a polychloroprene, (b) a halogenated polyolefin different from (a), and (c) a polyurethane polymer having ionic salt groups. A multi-layer composite and methods for adhering a thermoplastic material to a rigid substrate using the aqueous adhesive compositions also are provided.Type: GrantFiled: August 23, 2002Date of Patent: September 6, 2005Assignee: PPG Industries Ohio, Inc.Inventors: Tien-Chieh Chao, Umesh C. Desai, Charles M. Kania, Masayuki Nakajima, Kaliappa G. Ragunathan
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Patent number: 6821636Abstract: A method of producing formaldehyde laden layered products, the products having reduced emission of formaldehyde, of at least 2 layers, at least one of the layers being a veneer, comprising a step of treating at least one of the surfaces of said veneer, prior to bonding the layers together, with a solution comprising an ammonium salt. The invention also relates to a flooring material obtained by the method.Type: GrantFiled: March 11, 2002Date of Patent: November 23, 2004Assignee: Akzo Nobel N.V.Inventors: Robin Ljungar, Ingvar Lindh, Salme Pirhonen
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Publication number: 20030217807Abstract: A method of joining at least two objects (2,4) by gluing with a two-component adhesive system to form a composite structure is disclosed. It comprises providing a first adhesive component including liquid urea-formaldehyde in combination with a powdery urea, so as to render the first component sufficiently viscous. Furthermore, a second adhesive component including a hardener is provided. At least one of the objects (4) is preheated prior to joining said objects. The first and second adhesive components are then applied separately to said objects. Finally, heat and pressure (14) is applied for a time sufficient to cause said adhesive to cure.Type: ApplicationFiled: January 27, 2003Publication date: November 27, 2003Inventors: Leif Lesmann, Sofie Keiler
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Patent number: 6652970Abstract: The present invention is directed toward compositions that are chemically different after application to a substrate as compared to the composition prior to its application. A method of the invention comprises a method of transitioning a crosslinked polymer composition from a first chemical state to a second chemical state. Advantageously, compositions of the invention are relatively stable after transformation to their altered, or second, chemical state.Type: GrantFiled: July 7, 2000Date of Patent: November 25, 2003Assignee: 3M Innovative Properties CompanyInventors: Albert I. Everaerts, Charles M. Leir, Roger A. Mader, Peter A. Stark
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Patent number: 6444329Abstract: The present invention is related to a method of preserving plywood, particle board and similar wood composite products made from wood pieces/particles and a binder used to adhere such wood pieces/particle together against rot and mould decay. According to the invention, the preservative of the wood material is a complexing agent which is capable of binding transition group metals and is admixed into the binder used in the manufacture of said wood composite products prior to the formation of said product. The invention also concerns a binder composition, which contains a polymer resin as its adhesive component and a complexing agent, particularly an aminotetracarboxylic acid or a salt thereof, by approx. 1-30 wt.-% as the preservative of the wood material, and a method of producing said binder composition. Tests performed on faced plywood indicated that a water-soluble, environmentally safe complexing agent offers a white rot resistance which is superior to conventional preservatives commonly used today.Type: GrantFiled: December 11, 1998Date of Patent: September 3, 2002Assignees: UPM-Kymmene Oy, Koskisen Oy, Metsalitto OsuuskuntaInventors: Markku Lehtonen, Markku Lähteenmäki, Anne-Christine Ritschkoff, Jaakko Korpela
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Patent number: 6436865Abstract: The invention provides a liquid catalyst capable of cross-linking amino resins. The liquid catalyst has improved flexibility and adhesive properties. It is comprised of a cross-linkable polyvinyl acetate, an acid, and an ammonium salt.Type: GrantFiled: November 13, 2000Date of Patent: August 20, 2002Assignee: Multibond Inc.Inventors: Serge Berube, John Cutt
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Patent number: 6217702Abstract: Relatively low molecular weight olefin/CO polymers are graft copolymerized. The graft copolymers provide the basis for waterborne adhesives that are particularly useful for making wood composites.Type: GrantFiled: June 29, 1999Date of Patent: April 17, 2001Assignee: Shell Oil CompanyInventor: Pui Kwan Wong