Powder Coating Compositions Patents (Class 524/904)
  • Patent number: 11078369
    Abstract: The present invention relates to a powder paint for aluminum wheels, and more particularly, to a curing agent. The corrosion-resistance improved powder paint for aluminum wheels, which is the present invention, includes 70 to 80 wt % of an acrylic resin, 8 to 12 wt % of dodecanedioic acid, and 3 to 10 wt % of sebacic acid, and the corrosion resistance of the powder paint is improved according to the composition of the present invention, so that it is possible to reduce occurrence and diffusion of corrosion on corner pails.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: August 3, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Ji-Won Yang
  • Patent number: 10392469
    Abstract: Epoxy resin compositions containing at least one resin component and at least one hardener component are suitable as a thermoset matrix for production of semi-finished fiber matrix products and cured fiber matrix laminates known as composites.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: August 27, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Martina Ortelt, Dirk Fuchsmann, Sebastian de Nardo, Eike Langkabel, Britta Kohlstruk, Annette Sandkuehler, Ralph Aldridge, Katharina Karns
  • Patent number: 10280252
    Abstract: Latent epoxy resin formulations are suitable for liquid impregnation processes for production of fiber composite materials.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: May 7, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Martina Ortelt, Dirk Fuchsmann, Eike Langkabel, Britta Kohlstruk, Jaclyn Balthasar
  • Patent number: 10168629
    Abstract: A liquid electrophotographic varnish composition comprising: a polymer resin; an epoxy-based cross-linking agent; a solid catalyst comprising at least one amine group; and a carrier liquid.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: January 1, 2019
    Assignee: HP Indigo B.V.
    Inventors: Tony Azzam, Ilanit Mor, Samer Farran, Albert Teishev, Guy Nesher, Getahun Biadglin, Haim Cohen, Benjamin Dayan, Yael Kowal-Blau, Eyal Shelef
  • Patent number: 10155840
    Abstract: Epoxy compositions containing at least one resin component and at least one hardener component, are suitable as a thermoset matrix for production of semi-finished fiber matrix products and cured fiber matrix laminates.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: December 18, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Martina Ortelt, Eike Langkabel, Dirk Fuchsmann, Britta Kohlstruk, Katharina Karns
  • Patent number: 10081703
    Abstract: Disclosed is a polymerizable composition for an optical material containing polyisocyanate (a) including aliphatic polyisocyanate (a1) and a modified aliphatic polyisocyanate (a2); and polythiol (b) having a di- or higher functional thiol group, in which the modified aliphatic polyisocyanate (a2) is contained in the polyisocyanate (a) in the amount of less than or equal to 60 weight %.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: September 25, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hidetaka Tsukada, Shinsuke Ito, Naoyuki Kakinuma, Kenichi Goto, Toshihiko Nakagawa, Satoshi Yamasaki
  • Patent number: 9761261
    Abstract: An aspect of the present invention relates to a magnetic recording medium, which comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein the magnetic layer further comprises a compound which has a weight average molecular weight of equal to or more than 1,000 but less than 20,000 and is denoted by formula (1): wherein, in formula (1), A1 denotes a monovalent polymer group, each of R1 and R2 independently denotes a single bond or a divalent connecting group, R11 denotes a hydrogen atom or a monovalent substituent, m denotes an integer of equal to or greater than 2, multiple instances of R1, R2, A1, and R11 that are present can be identical or different, A2 denotes a hydrogen atom or a monovalent substituent denoted by —OR3—Z, R3 denotes a single bond or a divalent connecting group, Z denotes a monovalent acid group, among multiple instances of A2 that are present, at least one denotes a monovalent group denoted by —O—R3—Z, and X denotes a connecting group of
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: September 12, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Toshihide Aoshima, Wataru Kikuchi, Kazutoshi Katayama, Tatsuo Mikami
  • Patent number: 8987351
    Abstract: A method for treating filler material includes contacting the filler material with a silane which, upon hydrolysis, produces substantially no significant amount of volatile organic compound and/or the hydrolyzate of the silane to provide a treated filler which can then be incorporated into a matrix to provide a composite body.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: March 24, 2015
    Assignee: Momentive Performance Materials Inc.
    Inventor: Keith Weller
  • Patent number: 8461250
    Abstract: A powdery composition, in particular for coating metal substrates, comprises approximately 70% to approximately 80% of a polyester mixture, relative to the total weight of the composition. Relative to the weight of the polyester mixture, the polyester mixture comprises approximately 57% to approximately 58% of a first copolyester, approximately 35% to approximately 36% of a second copolyester, and approximately 7% of a third copolyester.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: June 11, 2013
    Assignee: Schekolin AG
    Inventors: Claudio Schollenberger, Andreas Singer
  • Patent number: 8304077
    Abstract: Metallic effect pigments with a platelet-shaped metallic substrate. The pigments have at least one metal oxide layer.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: November 6, 2012
    Assignees: Eckart GmbH, BYK-Chemie GmbH
    Inventors: Alfred Bubat, Wolfgang Griesel, Phu Qui Nguyen, Hans-Jörg Kremitzl
  • Patent number: 8232333
    Abstract: Process for preparing ultrafine powders based on polyamides by contacting polyamides having a relative solution viscosity ?rel in the range from 1.5 to 2.0, measured in 0.5% m-cresol solution at 25° C., with an alcoholic medium in the presence of inorganic particles under the action of pressure and/or temperature to generate an at least partial solution, and then precipitating the polyamide from the at least partial solution, characterized in that a suspension of the inorganic particles suspended in the alcoholic medium is used. The resulting ultrafine polyamide powders have a specific BET surface area in the range of 5-100 m2/g; a fineness d50 of less than 70 ?m; an apparent density AD in the range from 250 to 1000 g/l; and a particle content of 0.1 to 80% by weight of inorganic particles based on the total weight of the polyamide powder. They are equally suitable for coatings and for moldings and components with improved mechanical properties.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: July 31, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Harald Haeger, Franz-Erich Baumann, Wolfgang Lortz, Christoph Batz-Sohn
  • Patent number: 8138253
    Abstract: A filler for powder coating materials is provided, which comprises inorganic parties having a Mohs hardness of 1 to 4 and satisfying the following particle size distribution of the following relationships (1) to (5): 2?A?30??(1); Cumulative 50 vol. % diameter (median diameter) determined by Microtrac FRA [?m]; 0?B?35??(2); Cumulative undersize for one-half the cumulative 50 vol. % diameter (median diameter) determined by Microtrac FRA [vol. %]; 1?C?25??(3); Value obtained by dividing cumulative 90 vol. % diameter determined by Microtrac FRA by cumulative 10 vol. % diameter [-]; 1?D?6??(4); Value obtained by dividing cumulative 75 vol. % diameter determined by Microtrac FRA by cumulative 25 vol. % diameter [-]; and E?100??(5); Maximum particle diameter in particle-diameter fraction frequency distribution determined by Microtrac FRA [?m].
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: March 20, 2012
    Assignee: Maruo Calcium Company Limited
    Inventors: Takeshi Maeba, Nariatsu Uto, Takanobu Sakai
  • Patent number: 8138240
    Abstract: Composition suitable for a powder coating composition comprising at least one resin and at least one dispersant wherein the dispersant is added during the resin synthesis or while the resin leaves the reactor.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: March 20, 2012
    Assignee: DSM IP Assets B.V.
    Inventors: Leendert J. Molhoek, Jurjen H. M. Bolks, Jochum Beetsma
  • Patent number: 8063265
    Abstract: A hydrogel having a floatability where from 40% to 90% of a solution and/or suspension to be thickened are thickened starting from the surface of the liquid and the rest of the solution and/or suspension to be thickened is thickened starting from the bottom of the container, a process for preparing the hydrogel and also its use for absorbing blood and/or body fluids, especially in hygiene articles, or for thickening aqueous solutions and/or suspensions, especially for thickening medical wastes.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: November 22, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Beck, Volker Frenz, Anna Kowalski, Elisabeth Selzer, Ernst Jürgen Bauer, Harald Keller, Bernhard Steinmetz
  • Patent number: 7884145
    Abstract: A process for producing filler-containing polytetrafluoroethylene granules by an underwater agitation granulation method, whereby filler-containing polytetrafluoroethylene granules excellent in flowability can be obtained with little detachment of the filler and it is possible to prevent discharge of a polytetrafluoroethylene emulsion into waste liquid, the process characterized in that in a stage of granulating a mixture of polytetrafluoroethylene powder and a filler by agitation in water in the presence of a liquid organic substance hardly soluble in water, a polytetrafluoroethylene emulsion and a coagulant are added to coagulate the polytetrafluoroethylene emulsion as a surface layer of the filler-containing polytetrafluoroethylene granules.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 8, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Jun Hoshikawa, Masumi Nomura, Noriharu Tate
  • Patent number: 7867555
    Abstract: A method for coloring powders using a stable colorant dispersion is provided. The method includes mixing a base powder and a stable colorant dispersion. A colored powder composition baying a core particle and a partial shell about the core particle is provided.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: January 11, 2011
    Assignee: Valspar Sourcing Inc.
    Inventors: William G. O'Dell, Steven D. Johnson, Larry B. Brandenburger
  • Patent number: 7868065
    Abstract: A production process of colored resin powder, comprising a coloring step of mixing 0.5 to 40% by mass of a colorant (b1) with 99.5 to 60% by mass of a non-phthalic acid plasticizer (b2) to prepare a colored paste (B) and adding and mixing the colored paste (B) into a powdery thermoplastic polyurethane-urea resin (A), wherein the amounts of the colorant (b1) and the plasticizer (b2) contained in the colored paste (B) added to the powdery thermoplastic polyurethane-urea resin (A) are 0.1 to 5 parts by mass and 1 to 20 parts by mass, respectively, per 100 parts by mass of the thermoplastic polyurethane-urea resin. According to the production process, there can be provided colored resin powder, which is free from color mottling (color unevenness) on its surface and does not cause smearing of a molded product due to separation and falling of the colorant upon a molding process or the like.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: January 11, 2011
    Assignee: Nippon Polyurethane Industry Co., Ltd
    Inventors: Masahiro Hayashi, Motomu Kita, Hideyuki Tezen, Yuriko Minami
  • Patent number: 7691451
    Abstract: The present invention provides a composite powder coating composition obtained by granulating, with a liquid binder, a plurality of starting powder coating materials that are different from each other in hue and/or kind of base resin, and drying the granules, the liquid binder being a solution or dispersion of a binder compound having a softening temperature of 30 to 200° C. and containing a self-crosslinkable functional group or groups and/or a functional group or groups that complementarily react with functional groups of the starting powder coating materials, in a solvent that does not dissolve the starting powder coating materials; production process therefor; and a method for color-matching a composite powder coating composition, the method comprising the steps of dry blending, for color matching, a plurality of starting powder coating materials having different hues, granulating the resulting blend by adding the above-mentioned liquid binder, and drying the granules.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: April 6, 2010
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Toshio Ohkoshi, Manabu Imose
  • Patent number: 7638201
    Abstract: The present invention provides storage stable powder compositions comprising one or more carboxylic acid or anhydride functional, phosphorus-containing polyester chosen from aromatic polyesters having an acid number of 15 or higher mg KOH/g polyester, aliphatic polyesters having an acid number of 20 or higher mg KOH/g polyester. The acid functional, phosphorus-containing polyester comprises the reaction product of one or more polyacid, one or more phosphorus-containing acid or salt thereof and one or more polyol. Preferably, the one or more polyol reactant contains no ?-hydrogen such as, for example, neopentyl glycol (NPG). The acid functional, phosphorus-containing polyester may comprise all or part of a binder powder composition, such as a coating powder, or it may comprise an additive thereto that imparts improved pigment wetting and corrosion resistance to a binder composition.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: December 29, 2009
    Assignee: Rohm and Haas Company
    Inventors: Douglas S. Cinoman, Andrew T. Daly, Gordon L. Tullos
  • Patent number: 7547739
    Abstract: The present invention provides a powder coating composition comprising A) 30 to 90 wt % of at least one glycidyl-functionalized (meth)acrylic resin, B) 30 to 90 wt % of at least one carboxyl functionalized polyurethane resin, C) 0.01 to 10 wt % of at least one wax, and D) 0.05 to 30 wt % of at least one coating additive, and optionally pigment and/or filler, the wt % based on the total weight of the powder coating composition; the powder coating composition provides coatings with a very low gloss level (highly matt finish) and smoothness, a superior durability against aggressive substances and a very good adhesion on metallic substrates.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: June 16, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Peter Frese, Phu Qui Nguyen, Carmen Flosbach, Franziska Isele, Mike Schneider, Karina Fuhrmann
  • Patent number: 7514124
    Abstract: The present invention provides a white conductive primer coating composition comprising (a) 100 parts by weight of a resin mixture of a chlorinated polyolefin resin with a chlorine content of 10 to 40 wt. %, and at least one modifier resin selected from the group consisting of acrylic resins, polyester resins and polyurethane resins, (b) 5 to 50 parts by weight of a crosslinking agent, and (c) 10 to 250 parts by weight of a white conductive titanium dioxide powder which comprises titanium dioxide particles having on their surfaces a conductive layer comprising tin oxide and phosphorus, and in which the content (A) of metallic elements with valencies of 4 or less contained as impurities is no more than 0.1; and a method for forming a multilayer coating film using the composition.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: April 7, 2009
    Assignees: Kansai Paint Co., Ltd., Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroyuki Onoyama, Yoshizumi Matsuno, Katsuichi Chiba, Yuichi Yasuda
  • Patent number: 7435380
    Abstract: A pseudo-plastic or thixotropic carrier having anti-malodorous components dissolved or suspended therein is sprayed on the internal surfaces of an ostomy bag or pouch. The viscoelastic properties of the carrier allow the composition to be conveniently dispensed from a spray bottle into the ostomy bag and retained on the inner walls thereof without being displaced therefrom by incoming waste during use of the ostomy bag. This allows the composition to continue to deodorize the ostomy bag headspace even after waste material begins to fill the bag.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: October 14, 2008
    Assignee: Church & Dwight Co., Inc.
    Inventor: Anthony E. Winston
  • Patent number: 7393891
    Abstract: The present invention is related to a method of manufacture of a graft copolymer latex and its dried powder including a step of manufacture of a latex using a reactive surfactant for a surfactant in manufacturing of the graft copolymer latex containing acrylic polymers and a step of manufacture of dried powder in which the graft copolymer latex manufactured in the above step of manufacture of a latex is sprayed and dried. The method according to the present invention is effective in that it is possible to provide for dried powder of a graft copolymer latex having a low moisture content and a high powder density and to provide for a thermoplastic resin composition containing the above latex having superior luster, tensile strength, and thermal stability.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: July 1, 2008
    Assignee: LG Chem, Ltd.
    Inventors: Hyun-taek O, Tae-bin Ahn, Jung-tae Park, Keon-hoon Yoo
  • Patent number: 7381764
    Abstract: The present invention relates to novel radiation-curing powder coating binders containing maleic and/or fumaric acid esters and one or more amorphous or partially crystalline resins containing at least one group that reacts with ethylenically unsaturated compounds under the action of actinic radiation to form a polymer. The binders have a glass transition temperature ranging from 30 to 90° C. The binders can be used as a constituent in coating compositions.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: June 3, 2008
    Assignee: Bayer MaterialScience AG
    Inventors: Thomas Fäcke, Jan Weikard, Peter Thometzek
  • Publication number: 20070255015
    Abstract: A powder primer composition comprising as essential components (A) a carboxyl group-containing thermosetting polyester resin, (B1) a bisphenol A-type epoxy resin with an epoxy equivalent of 400-2000 g/eq or (B2) a bisphenol-type epoxy resin with an epoxy equivalent of 400-2000 g/eq and (C1) a bisphenol F-type epoxy resin with an epoxy equivalent of 400-2000 g/eq or (C2) a modified epoxy resin containing phenolic hydroxyl groups, obtained by reacting (a) a bifunctional epoxy resin with (b) an excess of a bifunctional phenol. Coating films obtained using the powder primer composition have excellent finished appearance and corrosion resistance.
    Type: Application
    Filed: April 25, 2007
    Publication date: November 1, 2007
    Inventors: Yoshinori Kato, Akinari Niimi, Yugen Kawamoto
  • Publication number: 20070224431
    Abstract: The invention provides a melt-blendable, film-forming, thermosetting, powder coating composition for producing a high temperature resistant coating, the composition is particularly useful for coating substrates subjected to high temperatures, such as, boilers, ovens, furnaces, stove burners, steam lines, heat exchangers, barbeque equipment, cooking utensils, the powder coating composition comprises A) at least one polysiloxane resin, and B) 0.01 to 50 parts by weight (pbw) based on 100 pbw binder of at least one inorganic anhydrous borate based on at least one alkali metal.
    Type: Application
    Filed: March 26, 2007
    Publication date: September 27, 2007
    Inventors: Owen H. Decker, Wenjing J. Zhou
  • Patent number: 7160959
    Abstract: Comb polymers prepared by reacting an acrylic polyol or a siloxane polyol with a lactone are disclosed. These comb polymers find particular application as additives for powder coating compositions, to improve various performance properties thereof. Powder coating composition comprising the described comb polymers are also disclosed.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: January 9, 2007
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Michael J. Ziegler, William H. Retsch, Jr., Anthony M. Chasser, Ronald R. Ambrose, Jackie L. Kulfan
  • Patent number: 7141618
    Abstract: Powder coating compositions having improved mar and scratch resistance are disclosed. The coatings generally comprise one or more particles that have been modified to render the particles more surface active. The improved resistance is achieved without affecting the appearance or mechanical performance of the coatings. Methods for using the coatings, and the substrates coated therewith, are also disclosed.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: November 28, 2006
    Assignee: PPG Industries Ohio, Inc.
    Inventors: John R. Schneider, Daniela White, Anthony M. Chasser, James B. O'Dwyer, Thomas R. Hockswender
  • 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: 7037976
    Abstract: The present invention relates to a free flowing powder composition with a particle size at most 800 ?m comprising: (a) 100 parts by weight of one or more styrenic block copolymers, at least one of which being a block copolymer (a1) comprising at least one block S having a glass transition temperature Tg above 25° C., which contains polymerized units of a vinylaromatic monomer and at least one elastomeric block B/S having a Tg below 25° C.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: May 2, 2006
    Assignee: KRATON Polymers U.S. LLC
    Inventors: Catherine Augusta Louis Maris, Sonja Marie Oosterbosch
  • Patent number: 6982289
    Abstract: Antibacterial powder paint composition consisting mainly of polyamide, characterized in that zinc and/or silver/zinc composite compound is incorporated in polyamide as antibacterial agent. This powder coating composition can produce a film with improved antibacterial activity, discoloration and endurance.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: January 3, 2006
    Assignee: Arkema
    Inventors: Takatoshi Kuratsuji, Hiroshi Shimizu
  • Patent number: 6946087
    Abstract: The invention discloses a method by which a fluid heat reactive resin system is formulated below the melting point of the resin. This permits the application of coatings and the formation of shapes and powders from the fluid heat reactive system. Liquefied gases are used to solvate resins so that curing agents, hardeners, pigments and flow control agents, and especially curing agents which are too reactive to be mixed with the resins above the melting point of the resins may be dispersed in the resins. After dispersion, the fluid heat reactive resin system remains in a deformable state under ambient conditions for a transient processing time. The transient processing time is established and maintained by the inclusion of plasticizers and high boiling solvents in the heat reactive resin system.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: September 20, 2005
    Inventor: Douglas S. Richart
  • Patent number: 6946202
    Abstract: A combination of powder coatings usable in a powder coating method for forming a coating film having visually homogeneous hue by mixing two or more powder coatings of which each color is different. In the combination of powder coatings, each of differences in triboelectric charges of two or more powder coatings is 5.0 ?C/g or less. The coating method usable herein includes the step of applying onto a substrate to be coated two or more powder coatings of which each color is different, in which the triboelectric charges are controlled in the above given ranges.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: September 20, 2005
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masayuki Maruta, Yukiya Sato, Katsutoshi Aoki, Yasunori Inagaki, Kuniyasu Kawabe, Hisakazu Tajima, Shinji Moriyama
  • Patent number: 6936652
    Abstract: Thermoplastic resin composition are provided that comprise a thermoplastic resin and an amount of antioxidant effective to increase the adhesion of paint to an article made from the composition. Also provided are methods to improve the paint adhesion of articles wherein the articles have been subjected to a temperature of at least about 330° F. for period of at least about 10 minutes. In a preferred embodiment, the antioxidant, also known as a stabilizer, or mixture of stabilizers is selected from the group consisting of the phenolic antioxidants, the 3-arylbenzofuranones, the hindered amine stabilizers, the ultraviolet light absorbers, the alkaline metal salts of fatty acids, the hydrotalcites, the epoxydized soybean oils, the hydroxylamines, the tertiary amine oxides, thermal reaction products of tertiary amine oxides, the thiosynergists, and mixture containing at least one of the foregoing.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: August 30, 2005
    Assignee: General Electric Company
    Inventors: Antoinette C. M. van Bennekom, Josephus Gerardus M. van Gisbergen, Sai-Pei Ting
  • Patent number: 6927253
    Abstract: Powder clearcoat dispersions (powder slurry clearcoats) preparable by adding a secondary (meth)acrylate copolymer dispersion in liquid and/or powder form to a powder slurry during and/or after its preparation; and the use thereof for producing clearcoat finishes, especially as part of multicoat color and/or effect finishes.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: August 9, 2005
    Assignee: BASF Coatings AG
    Inventors: Walter Lassmann, Heinz-Peter Rink, Horst Hintze-Brüning, Klaus-Dieter Stegmann
  • Patent number: 6894102
    Abstract: A syndiotactic polystyrene blend comprises syndiotactic polystyrene and poly(arylene ether) wherein the poly(arylene ether) has an intrinsic viscosity less than about 0.25 deciliters per gram (dl/g) when measured in chloroform at 25° C.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: May 17, 2005
    Assignee: General Electric
    Inventor: Glen David Merfeld
  • Patent number: 6881769
    Abstract: Matting agent for thermally curable systems, especially for powder coating compositions, that comprise at least, one carboxyl-containing polymer as binder and at least one epoxy-group-containing compound as cross-linking agent, wherein the matting agent comprises at least the following constituents: (a) a metal salt or a metal complex of an organic compound, the metal being selected from the group magnesium, calcium, strontium, barium, zinc, aluminium, tin and antimony, and (b) a polymerisation product of monomers, the monomers including epoxy-group-containing monomers and the epoxy value of the polymerisation product being from 0.1 to 8 equivalents of epoxy groups, and overall the ratio of epoxy equivalents of component (b) to metal equivalents of component (a) being from 0.2 to 120.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: April 19, 2005
    Assignee: Huntsman Advanced Materials Americas Inc.
    Inventors: Carmelina Grob, Christoph Rickert, Daniel Künzi
  • Patent number: 6858257
    Abstract: The invention provides a powder coating composition in which the powder particles are an agglomerate of individual particulate components fused or bonded together into composite particles.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: February 22, 2005
    Assignee: International Coatings Limited
    Inventor: Andrew George Cordiner
  • Patent number: 6849678
    Abstract: The current process for producing powder coatings can be replaced with a process utilizing supercritical fluids including polymer polymerization, compatibilized blending of powder coating ingredients, and particle size control and classification of the powder coating. Traditionally, powder coating resins are polymerized in solvent based system. Next, the resin is blended with additives in a twin screw extruder at high temperatures. The material is then ground and separated by particle size to form the finished powder coating. This invention replaces the previous process by performing all operations in a supercritical fluid, preferably, carbon dioxide. Polymerization is conducted at any pressure above critical pressure and temperature above critical temperature up to 190°C. Solubility of the polymer in the supercritical fluid allows for control and narrow distribution of the molecular weight and a polydispersity of about 2 or less.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: February 1, 2005
    Assignee: The University of Akron
    Inventors: Sunggyu Lee, H. Bryan Lanterman, Paul Pettit, Jr., Kathy L. Fullerton
  • Patent number: 6849337
    Abstract: A powder coating composition contains solid particulates of a mixture of a solid material having at least two epoxide groups, each beta to a urethane or urea group, and a solid crosslinker reactive with epoxide groups.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: February 1, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Timothy S. December
  • Patent number: 6846891
    Abstract: The invention relates to a method for the production of a coating and excipient agent for oral or dermal dosage forms, consisting of (a) 35-98% by weight of a copolymer consisting of radically polymerized C1-C4 esters of acrylic or methacrylic acid and additional (meth)acrylate monomers having functional tertiary amino groups and (b) 1-50% by weight of a softener and 1-15% by weight of an emulgator with an HLB value of less than 14, wherein constituents (a), (b) and (c) are mixed with or without adding water and optionally adding a pharmaceutical active substance and other conventional additives and the coating and excipient agent is produced by melting, casing, spreading or spraying. The invention is characterized in that the copolymer (a) is applied in powder form with a mean particle size of 1-40 ?m.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: January 25, 2005
    Assignee: Roehm GmbH & Co. KG
    Inventors: Hans-Ulrich Petereit, Christian Meier, Erna Roth
  • Patent number: 6818303
    Abstract: Powder clearcoat dispersions (powder slurry clearcoats) preparable by dispersing a powder clearcoat in an aqueous medium and wet milling the resulting powder slurry, at least one adduct of ethylene oxide and/or propylene oxide with at least one glycol being added to the powder slurry prior to wet milling; and the use of the powder slurry clearcoats for producing clearcoat finishes, especially as part of multicoat color and/or effect finishes.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: November 16, 2004
    Assignee: BASF Coatings AG
    Inventors: Walter Lassmann, Horst Hintze-Brüning, Wolfgang Bremser, Ulrike Röckrath
  • Publication number: 20040224153
    Abstract: A composition or particle mixture (20) for equalizing radial and lateral forces at the tire/road footprint of a pneumatic tire (11) due to tire/wheel assembly imbalance, non-uniformity of the tire, temporary disturbances in the road surface, or other vibrational effects of the unsprung mass of a vehicle whereby the particle mixture (20) is inserted into the interior of the tire (11). The composition is a dry solid particle mixture (20) wherein the particles are freely flowable and non-tacky at elevated tire temperatures, the particle mixture (20) is essentially devoid of liquid material, and the particle mixture (20) comprises two or more sets of particles wherein each set consists essentially of particles of a predetermined size or size range. The particle mixture (20) exhibits a multimodal particle size distribution.
    Type: Application
    Filed: April 12, 2002
    Publication date: November 11, 2004
    Inventor: Robert D. Fogal, Sr.
  • Patent number: 6812267
    Abstract: A process for making pigmented PVDF-based powder coatings by coagulation and powder based coatings made by the process. The process involves blending a PVDF latex and a water reducible acrylic polymer and pigment dispersion, adding coagulant to precipitate solid PVDF and pigment associated by ionic interaction with acrylic polymer binder, separating solids and drying the precipitate. Also, methods for coating substrates with the powder coating and coated substrates.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: November 2, 2004
    Assignee: Solvay Solexis, Inc.
    Inventors: Shiow-Ching Lin, Michelle Kelly, Bradley Kent
  • Patent number: 6797387
    Abstract: A crosslinking agent is provided, prepared by reacting (A) an aminoplast resin; (B) a reactive urethane group-containing adduct of a polyfunctional polymer and monoisocyanate, and (C) at least one other compound having active hydrogen groups reactive with aminoplast resin (A). Compound (C) is selected from: (i) compounds having the structure (I):  wherein X is aromatic; R1, R2, and R3 each independently represents H, (cyclo)alkyl having from 1 to 12 carbon atoms, aryl, alkaryl, aralkyl, or an active hydrogen-containing group, (ii) compounds having the structure (II) or (III):  where R′ and R″ each independently represents an aromatic group or an alkyl group having 1 to 12 carbon atoms; and (iii) compounds different from (i) and (ii), having a melting point of at least 80° C. Further provided are methods for preparing the crosslinking agent, curable compositions containing the crosslinking agent, and coated substrates.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: September 28, 2004
    Assignee: PPG Industries Ohio Inc.
    Inventors: Ronald R. Ambrose, Anthony M. Chasser, Shengkui Hu, Jackie L. Smith
  • Patent number: 6797749
    Abstract: The invention provides a powder coating composition in which powder particles are an agglomerate of individual particulate components fused or bonded together into composite particles. Maximizing the amount of larger-sized uncolored component(s) gives cost advantages, and the invention allows a rapid and flexible manufacture of a range of colored powder coating compositions.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: September 28, 2004
    Assignee: International Coatings Limited
    Inventor: Andrew George Cordiner
  • Patent number: 6784258
    Abstract: A crosslinking agent is provided, prepared by reacting (A) an aminoplast resin; (B) a reactive urethane group-containing adduct and (C) at least one other compound having active hydrogen groups reactive with aminoplast resin (A). Compound (C) is selected from: (i) compounds having the structure (I):  wherein X is aromatic; R1, R2, and R3 each independently represents H, (cyclo)alkyl having from 1 to 12 carbon atoms, aryl, alkaryl, aralkyl, or an active hydrogen-containing group, (ii) compounds having the structure (II) or (III):  where R′ and R″ each independently represents an aromatic group or an alkyl group having 1 to 12 carbon atoms; and (iii) compounds different from (i) and (ii), having a melting point of at least 80° C. Further provided are methods for preparing the crosslinking agent curable compositions containing the crosslinking agent, and coated substrates.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: August 31, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Ronald R. Ambrose, Anthony M. Chasser, Shengkui Hu, Jackie L. Smith
  • Patent number: 6737467
    Abstract: Powder coating compositions containing 5 to 60 wt % of spherical or near spherical particles having a median diameter of greater than 10, and most preferably of greater than 15 microns exhibit lower gloss without undesirable side effects such as loss of coating flow or creation of an “orange peel” effect.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: May 18, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Owen H. Decker, M. Aaron Sparks
  • Patent number: 6734236
    Abstract: To provide a fluorine-containing resin powder coating composition giving a fluorine containing resin coating film having a high whiteness, and various articles having on an outer surface thereof a coating of which has a high whiteness and can be produced by applying the fluorine-containing resin powder coating composition. The fluorine-containing resin powder coating composition is subjected To baking at 300° C. or more, and the fluorine-containing resin composition for forming the coating film comprises surface-treated rutile titanium oxide particles as a whitening agent.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: May 11, 2004
    Assignee: Daikin Industries, Ltd.
    Inventors: Nobuyuki Tomihashi, Koichiro Ogita, Toshio Miyatani
  • Patent number: 6677484
    Abstract: Powder comprising substantially spherical particles of at least one compound selected from the group consisting of azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic acid, and the anhydrides of said acids, said at least one compound being distributed substantially uniformly throughout the entirety of each of said particles, said particles having a particle size distribution as follows: d90 - d10 d50 < 1.90 wherein: d50 is a particle diameter at which 50% of the particles have diameters which are greater or smaller than the d50 value; d90 is a particle diameter at which 90% of the particles have diameters which are smaller than the d90 value; d10 is the particle diameter at which 10% of the particles have diameters which are smaller than the d10 value; and d50 is 8 to 30 micrometers.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: January 13, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Ronald Lee Amey, George Alan Schurr