Patents Assigned to Akzo Nobel
  • Patent number: 10844242
    Abstract: The present invention relates to a two-component putty comprising (1) a base component and (2) a curing component, wherein the base component comprises: —a polycarbonate diol having a hydroxyl number in the range of from 50 to 500 mg KOH/g; —a further resin component having a hydroxyl number of at least 300 mg KOH/g; and —an inorganic filler, wherein the curing component comprises a polyisocyanate, and wherein the amount of the inorganic filler is in the range of from 35 wt % to 60 wt %, based on the total weight of the putty, the putty contains less than 5 wt % of organic solvent, and the viscosity of the putty is in the range of from 30,000 mPa·s to 250,000 mPa·s. The present invention also relates to a method for coating a substrate by applying such putty and allowing the applied putty to cure. The invention further relates to a coated substrate obtainable by such method and the use of such two-component putty for improving erosion resistance of a substrate.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: November 24, 2020
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Dirk Seeger, Johannes Felker
  • Patent number: 10830644
    Abstract: The invention relates to a method of determination of a matching variant of a standard colour of a repair paint matching the effect colour of an object to be repaired, the method comprising the steps of a) determination of the standard colour of the colour of the object to be repaired, and b) determination of the best matching variant of the standard colour from a given number of variant colours, wherein ? a swatch coated with the colour of the standard colour is visually compared under at least two different angles of illumination and/or observation with the colour to be matched, ? the visual deviation from the standard colour and the colour of the object to be matched being evaluated on the basis of predetermined deviations for the visual properties, wherein the predetermined visual properties comprise at least one colour property and at least one texture property, ? based on the predetermined deviations for the visual properties of the standard colour and the colour of the object to be matched, the best ma
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: November 10, 2020
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Alan Craighead, Claude Griffith, Swie Lan Njo
  • Patent number: 10647859
    Abstract: The present invention relates to a two-component putty comprising (1) a base component and (2) a curing component, wherein the base component comprises: —castor oil as resin component; and —a further resin component having a hydroxyl number in the range of from 00 to 800 mg KOH/g, wherein the curing component comprises a polyisocyanate, and wherein the two-component putty further comprises hollow microspheres and an organically modified inorganic filler. The present invention also relates to a method for coating a substrate by applying such putty and allowing the applied putty to cure. The invention further relates to a coated substrate obtainable by such method.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: May 12, 2020
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Igor Shishkov, Dirk Seeger, Julia Krupp, Johannes Felker
  • Patent number: 10604676
    Abstract: The invention relates to the use of a coating agent composition for lining containers as well as a method for cleaning a container that has a corresponding lining and in which at least one product has been stored and/or transported.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: March 31, 2020
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Jens Klauer, Klaus Buck, Dirk Seeger, Christoph Piecha
  • Patent number: 10570308
    Abstract: The invention relates to a water-based coating composition for heat insulating building surfaces, the coating composition comprising in the range of from 55 to 90 vol %, preferably of from 60 to 80 vol % hollow microspheres, in the range of from 1 to 30 wt % of a dispersed acrylic binder polymer, in the range of from 0.1 to 3 wt % of a thickener, in the range of from 40 to 80 wt % water; and in the range of from 0.05 to 5 wt % of additives selected from the group consisting of biocides, anti-foaming agents, surfactants, dispersants, and combinations of two or more thereof, wherein the coating composition is substantially free of non-hollow mineral and metallic fillers and is substantially free of hydraulic binders, and wherein the coating composition has a density of less than 500 kg/m3.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: February 25, 2020
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Cynthia Margaret Van Westerhuizen-Markus, Arjan Christian Verbunt, Evelien Rijnberg, Joël Krikke
  • Patent number: 10550283
    Abstract: Corrosion and chip-resistant coatings for high tensile steel components, such as automotive coil springs, can be formed from a coating composition comprising a primer having an epoxy resin with the proviso that the epoxy resin does not have an EEW of about 860 to about 930, a polyhydroxyl functional phenolic curing agent having a HEW of about 200 to about 500, and a platy filler. The primer contains less than 20 wt % zinc. The topcoat includes an epoxy resin having an epoxy equivalent weight of about 450 to about 1400, an elastomer-modified epoxy resin having an epoxy equivalent weight of about 1000 to about 1600, a foaming agent and a reinforcing fiber.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: February 4, 2020
    Assignee: Akzo Nobel Coating International B.V.
    Inventor: Chad Lucas
  • Publication number: 20200010714
    Abstract: Embodiments herein provide for a waterborne PVDF coating composition, the preparation method and use thereof. The coating composition includes a waterborne polyvinyl fluoride dispersion, a waterborne carboxyl acrylic resin, and a crosslinking agent. The resulting coating gives excellent film performance which is comparative to that of solvent borne PVDF formulations. Meanwhile, the coating composition requires smaller amount of crosslinking agent in the formulation, and lower heating temperature for curing process, as compared with solvent borne PVDF formulations.
    Type: Application
    Filed: February 8, 2017
    Publication date: January 9, 2020
    Applicant: Akzo Nobel Coatings International B.V.
    Inventors: Xiaobin WANG, Weifeng DAI, Xin LV, Limin SHAO
  • Publication number: 20190375884
    Abstract: The present invention relates to a process for the manufacture of an epoxy-functional polyester. The process according to the invention comprises the steps of a) providing a polyester having functional groups selected from hydroxyl groups and carboxylic acid groups, or mixtures thereof, b) reacting the functional groups of the polyester with an epihaloalkane to obtain an epoxy-functional polyester dissolved in a liquid phase, c) optionally adding an organic solvent to the liquid phase obtained in step b); d) precipitating the epoxy-functional polyester from the liquid phase obtained in step b) or in step c); and e) isolating the precipitated epoxy-functional polyester from the liquid phase by a solid-liquid separation technique. The thus obtained resin is in particular useful for use in powder coatings.
    Type: Application
    Filed: July 10, 2017
    Publication date: December 12, 2019
    Applicant: Akzo Nobel Coatings International B.V.
    Inventors: Matthew George UNTHANK, Ian Marchant JACKSON, Barry Gordon THOMPSON
  • Patent number: 10479898
    Abstract: The invention relates to a coating composition comprising a) seawater-hydrolyzable groups covalently linked to a polymer backbone, which seawater-hydrolyzable groups are capable of undergoing hydrolysis or ion-exchange when exposed to sea-water, rendering the polymer partially soluble or dispersible in seawater, and b) zwitterionic groups covalently linked to a polymer backbone wherein the polymer backbones to which the sea-water-hydrolyzable groups and the zwitterionic groups are attached serve as a film-forming binder in the coating composition, and wherein the molar ratio of the seawater-hydrolyzable groups a) to the zwitterionic groups b) is 0.1 or higher. The invention also relates to a method of providing a substrate with anti-fouling performance and to a coated substrate.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: November 19, 2019
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Clayton Price, Lyndsey Tyson, Andrew Donoghue, Alistair Andrew Finnie
  • Publication number: 20190335748
    Abstract: The present invention relates to an aqueous agrochemical spray solution containing an agrochemical active and a surfactant. The spray solution comprises a dispersed phase comprising dispersed particles which have an average particle size between 1 to 100 microns and the concentration of said dispersed particles is from about 0.001 to 5 wt %. The aqueous agrochemical spray solution is capable of reducing the volume of the fine droplets in mist whose size is less than 150 microns during spraying by at least 20% compared to the same aqueous spray solution without the presence of the surfactant. The present invention also relates to a method of reducing the spray drift of an aqueous agrochemical spray solution upon spraying with a spraying apparatus. The method includes adding the surfactant to the aqueous agrochemical spray solution in an amount effective to form the dispersed phase.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 7, 2019
    Applicants: AKZO NOBEL CHEMICALS INTERNATIONAL B.V., DOW AGROSCIENCES LLC
    Inventors: Jinxia Susan SUN, Shawn ZHU, Martin W. MURRAY, Marcus BOONE, Michael WALTERS, Qingwen Wendy YUAN-HUFFMAN, Christine PUGLISI, Brandon Matthew DOWNER, Stephen L. WILSON
  • Patent number: 10450197
    Abstract: The present invention relates to a silica sol having a pH above about 10, molar ratio of SiO2:M2O, in which M is alkali metal, of from about 6:1 to about 16:1, concentration of soluble silica above about 3000 mg SiO2/l, and S-value of from about 18 to about 40%.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: October 22, 2019
    Assignee: Akzo Nobel Chemicals International B.V.
    Inventors: Erik Sanne, Freddie Hansson
  • Publication number: 20190308908
    Abstract: The invention relates to the use of a building composition marker comprising at least one alpha-amino acid, alpha-amino acid salt or a mixture thereof in a building composition. The invention also relates to a building composition comprising such a building composition marker, and to a process for producing the building composition.
    Type: Application
    Filed: July 11, 2017
    Publication date: October 10, 2019
    Applicant: Akzo Nobel Chemicals International B.V.
    Inventor: Thomas ABERLE
  • Patent number: 10414940
    Abstract: The invention relates to a method for coating a substrate comprising: a) providing a liquid aqueous coating composition, the composition comprising an acrylic resin as binder, one or more surfactants, a coalescence solvent, and a thickener; b) foaming the liquid aqueous coating composition to obtain a foamed coating composition; c) applying a layer of the foamed coating composition on the substrate; and d) allowing gas to escape from the layer of foamed coating composition and allowing the coating composition to dry to form a homogeneous non-foam dried coating, wherein the liquid aqueous coating composition provided in step a) comprises the acrylic resin in a concentration in the range of from 1 to 20 wt %, comprises the thickener in a concentration in the range of from 0.05 to 2.0 wt %, and has a solids content of at most 25 wt %, based on the total weight of the liquid aqueous coating composition. The invention further relates to foamed aqueous coating composition obtainable by steps a) and b).
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: September 17, 2019
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Anthonie Stuiver, Rebecca Krijt, Patrick Grosze Nipper
  • Patent number: 10407779
    Abstract: The invention is a method of stripping one or more additional coats covering a barrier primer coat that covers a surface. The barrier coat contains a catalyst, such as manganese dioxide and, or, manganese carbonate, for the decomposition of hydrogen peroxide. The top coat of the covered surface is contacted with the stripping agent at decomposition reaction conditions.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: September 10, 2019
    Assignee: Akzo Nobel Coatings International B.V.
    Inventor: Mark Robert Zentner
  • Patent number: 10376901
    Abstract: The present invention relates to the use of branched fatty alcohol-based compounds selected from the group of fatty alcohols with 12-16 carbon atoms having a degree of branching of 1-3, and their alkoxylates with a degree of ethoxylation of up to 3, as secondary collectors for the froth flotation of non-sulfidic ores, in combination with a primary collector selected from the group of amphoteric and anionic surface active compounds.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: August 13, 2019
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Natalija Smolko-Schvarzmayr, Anders Klingberg, Elisabeth Henriksson, Henrik Nordberg
  • Patent number: 10375148
    Abstract: The invention relates to a method of selecting the most probable variant of a matching paint candidate color standard for vehicle repair using a mobile device having a color display and an input unit and which is capable of data exchange with a central computer via an at least partly wireless communication line, wherein verbal or symbolic characterizations describing visual differences between a selected candidate color standard and identified variants are displayed on the display of the mobile device.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: August 6, 2019
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Eric Jacob Jan Kirchner, Swie Lan Njo, Jeroen Hoogink
  • Patent number: 10370519
    Abstract: The invention is directed to a matting paste composition comprising: a) thermoplastic non-hydroxy-functional acrylic resin; b) hindered amine light stabilizer; c) UV absorber; d) amorphous, untreated fumed silica, flattener; and e) one or more organic solvents.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: August 6, 2019
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Toolika Rhoades, Justin Blair
  • Patent number: 10364361
    Abstract: An aqueous based coating composition comprising a fatty amine quaternary having the structure of formula (I): R1R2R3R4N+X? wherein R1, R2, R3, and R4 are independently selected from saturated or unsaturated, linear or branched, substituted or unsubstituted alkyl, aralkyl, or alkenyl groups comprising from 1 to 30 carbon atoms, whereby at least one of R1, R2, R3, and R4 is a C12-C30 group, and X? is an anion from an inorganic or organic acid, is provided. The fatty amine quaternary may contain ethoxy and/or propoxy groups. One or more of R1, R2, R3, and R4 may be substituted and contain one or more hydroxyl substituents or ether linkages. Methods for imparting water resistance to a wood substrate having up to 100% moisture by applying a coating composition having the fatty amine quaternary of formula (I), and for preparing an aqueous coating composition comprising the fatty amine quaternary of formula (I) are provided.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: July 30, 2019
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Hua Yu, Lingjuan Shen
  • Patent number: 10357032
    Abstract: The present invention relates to an aqueous agrochemical spray solution containing an agrochemical active and a surfactant. The spray solution comprises a dispersed phase comprising dispersed particles which have an average particle size between 1 to 100 microns and the concentration of said dispersed particles is from about 0.001 to 5 wt %. The aqueous agrochemical spray solution is capable of reducing the volume of the fine droplets in mist whose size is less than 150 microns during spraying by at least 20% compared to the same aqueous spray solution without the presence of the surfactant. The present invention also relates to a method of reducing the spray drift of an aqueous agrochemical spray solution upon spraying with a spraying apparatus. The method includes adding the surfactant to the aqueous agrochemical spray solution in an amount effective to form the dispersed phase.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: July 23, 2019
    Assignees: AKZO NOBEL CHEMICALS INTERNATIONAL B.V., DOW AGROSCIENCES LLC
    Inventors: Jinxia Susan Sun, Shawn Zhu, Martin W. Murray, Marcus Boone, Michael Walters, Qingwen Wendy Yuan-Huffman, Christine Puglisi, Brandon Matthew Downer, Stephen L. Wilson
  • Patent number: 10351648
    Abstract: A method for preparing a zwitterionic co-polymer comprising the steps of: a) providing a solution of at least one ethylenically unsaturated polymerizable zwitterionic monomer dissolved in a solvent; b) combining said solution of zwitterionic monomer with at least one co-monomer being selected from cationic, anionic and non-ionic ethylenically unsaturated monomers; c) polymerizing the zwitterionic monomer and said at least one co-monomer in the presence of said solvent to form a solution or dispersion of co-polymer; and, d) replacing at least part of said solvent with a further solvent in which said co-polymer shows sufficient solubility to form a solution of said co-polymer in that further solvent. Step b) and step c) of this method may be performed sequentially or concurrently.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: July 16, 2019
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventor: Ian Stuart Millichamp