Patents Assigned to Akzo
  • Publication number: 20080295738
    Abstract: The invention relates to a method of producing a substantially aqueous pigment dispersion substantially free from an organic binder comprising mixing at least one water-soluble or water-dispersible silane compound and colloidal silica particles to form silanized colloidal silica particles in an aqueous dispersion whereby said at least one silane compound is mixed with colloidal silica particles in a weight ratio of silane to silica of from about 0.2 to about 1.5, mixing said silanized colloidal silica particles with an organic and/or inorganic pigment, wherein the weight ratio of silica to pigment is from about 0.001 to about 0.8 to form said substantially aqueous pigment dispersion. The invention also relates to an aqueous pigment dispersion obtained from the method defined herein.
    Type: Application
    Filed: November 7, 2007
    Publication date: December 4, 2008
    Applicant: AKZO NOBEL N.V.
    Inventors: Peter GREENWOOD, Hans Lagnemo
  • Patent number: 7459005
    Abstract: The invention relates to an aqueous solution consisting essentially of: (a) hydrogen peroxide; (b) at least one compound selected from the group consisting of complexing agents based on phosphonic acids, salts and degradation products thereof in an amount from about 10 to about 60 wt % based on the amount of hydrogen peroxide; (c) water; and (d) components other than (a) through (c) in an amount from 0 up to about 10 wt % based on the amount of hydrogen peroxide The invention further concerns a soil oxygenation or micronutrient composition comprising hydrogen peroxide, a process for its preparation, and a process for the oxygenation of soil.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: December 2, 2008
    Assignee: Akzo Nobel N.V.
    Inventors: David C. Lovetro, David J. Bonislawski, Laural C. Webb
  • Publication number: 20080293957
    Abstract: The invention relates to a process for preparing an organically modified layered double hydroxide having a distance between the individual layers of the layered double hydroxide of above 1.5 nm and comprising an organic anion as charge-balancing anion, the process comprising the steps of: (a) preparing a precursor suspension comprising a divalent metal ion source and a trivalent metal ion source; (b) solvothermally treating the precursor suspension to obtain the layered double hydroxide, wherein an organic anion is added before or during the formation of the layered double hydroxide of step (b), or following the formation of the layered double hydroxide, so as to obtain the organically modified layered double hydroxide, with the proviso that deoxycholic acid is not the sole organic anion. The invention further pertains to a process for preparing an organically modified layered double hydroxide having a distance between the individual layers of the layered double hydroxide of above 1.
    Type: Application
    Filed: December 1, 2006
    Publication date: November 27, 2008
    Applicant: Akzo Nobel N.V.
    Inventors: Robin Winters, Elwin Schomaker, Siebe Cornelis De Vos, Marianne Frederika Reedijk, Johanna Henriette Zijtveld-Van Der Wiel
  • Patent number: 7456144
    Abstract: The present invention relates to the use of phosphated 2-propylheptanol or a phosphated 2-propylheptanol alkoxylate as a hydrotrope in aqueous alkaline solutions for a C8-C18-alcohol alkoxylate containing 1-20 ethyleneoxy units. It also relates to a phosphated 2-propylheptanol alkoxylate per se, and an alkaline cleaning composition comprising a C8-C18-alcohol alkoxylate containing 1-20 ethyleneoxy units and phosphated 2-propylheptanol and/or a phosphated 2-propylheptanol alkoxylate as a hydrotrope. The cleaning compositions may be used for industrial cleaning of hard surfaces, for example for vehicle cleaning or machine dishwashing.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: November 25, 2008
    Assignee: Akzo Nobel N.V.
    Inventors: Mahnaz Company, Magnus Franck, Anette Thyberg
  • Patent number: 7456212
    Abstract: The present invention relates to peroxide compositions comprising one or more cyclic ketone peroxides, one or more dialkyl peroxides, and, optionally, one or more conventional phlegmatisers. These compositions are safe and storage stable. In addition, the invention also pertains to the use of such compositions in polymerization and (co)polymer modification processes.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: November 25, 2008
    Assignee: Akzo Nobel N.V.
    Inventors: Rolf Hendrik Van Den Berg, Bart Fischer, Frans Johannes Hoogesteger, Simon Put
  • Patent number: 7452442
    Abstract: The present invention relates to a method of gluing wood based materials by providing an adhesive system onto wood based materials followed by curing, the adhesive system comprises a melaminic amino resin and a phenolic resin composition, wherein the phenolic resin composition comprises an acid and a phenolic resin. The invention also relates to an adhesive system and a stable phenolic resin composition as well as wood based products obtained by the method or through the use of the adhesive system.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: November 18, 2008
    Assignee: Akzo Nobel N.V.
    Inventors: Salme Pirhonen, Benyahia Nasli-Bakir, Ingvar Lindh
  • Patent number: 7452945
    Abstract: Ambient temperature curing coating composition comprising—a branched alkoxy-functional polysiloxane having the formula R2-O-[Si(R1)2—O]n—R2, wherein each R1 is selected from the group consisting of alkyl, aryl, and alkoxy groups having up to six carbon atoms, and Osi(OR3)3 groups, wherein each R3 independently has the same meaning as R1, each R2 is selected from the group consisting of hydrogen and alkyl and aryl groups having up to six carbon atoms, and wherein n is selected such that the molecular weight of the polysiloxanes is in the range of from 500 to about 2,000,—a catalyst, and—an acrylic polymer. The acrylic polymer is substantially free of functional groups that can react with the polysiloxane or with the catalyst in the coating composition.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: November 18, 2008
    Assignee: Akzo Nobel Coatings International B.V.
    Inventor: Steve Alister Nixon
  • Publication number: 20080281034
    Abstract: The invention relates to a coating composition comprising a polyisocyanate, a polyol, a metal based catalyst for the addition reaction of isocyanate groups and hydroxyl groups, a thiol-functional compound, and a carboxylic acid wherein the carbonyl group of the carboxylic acid is in conjugation with a ?-electron system.
    Type: Application
    Filed: August 17, 2006
    Publication date: November 13, 2008
    Applicant: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Pokon Ganguli, Antonius Josephus Van Der Putten, Berend Mulder
  • Publication number: 20080274295
    Abstract: A process for coating a substrate with a coating comprising sequential steps of coating the substrate with mixtures of powders of fluoropolymers, thermoplastic polymers, perfluoropolymers and inorganic fillers of certain particle sizes. The coated substrate has the property of strongly adhering to a topcoat comprising a perfluoropolymer.
    Type: Application
    Filed: May 8, 2006
    Publication date: November 6, 2008
    Applicant: Akzo Nobel Coatings International B.V.
    Inventors: Jose Cavero, Peter L. Huesmann
  • Patent number: 7446074
    Abstract: The invention relates to highly concentrated aqueous emulsions of peroxides comprising an anti-freeze agent, a polyvinyl acetate with a degree of hydrolysis between 45 and 80%, and optionally a non-ionic surfactant with an HLB value greater than 10 selected from alkylene oxide block-copolymers, ethoxylated fatty alcohols, and ethoxyfated fatty acids. The emulsions have a low COD value and are safe, storage stable, and generally applicable.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: November 4, 2008
    Assignee: Akzo Nobel N.V.
    Inventors: Johannes Jacobus Theodorus De Jong, Boen Ho O, Hans Westmijze
  • Patent number: 7445848
    Abstract: Ambient temperature curing coating composition comprising a polysiloxane having the formula: wherein each R1 is selected from the group consisting of alkyl, aryl, and alkoxy groups having up to six carbon atoms, reactive glycidoxy groups, and OSi(OR3)3 groups, wherein each R3 independently has the same meaning as R1, each R2 is selected from the group consisting of hydrogen and alkyl and aryl groups having up to six carbon atoms, and wherein n is selected so that the molecular weight of the polysiloxanes is in the range of from 500 to about 2,000, an alkoxysilyl-functional acrylic polymer, and a curing catalyst. The invention further relates to the preparation of an alkoxysilyl-functional acrylic polymer.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: November 4, 2008
    Assignee: Akzo Nobel Coatings Internationals B.V.
    Inventor: Steve Alister Nixon
  • Publication number: 20080269403
    Abstract: The invention relates to a solid pigment preparation comprising at least 35% by weight of one or more pigments and at most 65% by weight of a dispersant resin, wherein the dispersant resin comprises a polyester backbone having at least one pendent hydrophilic polyalkylene oxide monoalkylether group, the dispersant resin comprising 30 to 80% by weight of alkylene oxide units and having a number average molecular weight of 1,000 to 150,000.
    Type: Application
    Filed: October 3, 2006
    Publication date: October 30, 2008
    Applicant: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Klaas Jan Hendrik Kruithof, Rienk Hettema, Jamie MacLiver Roy, Hendrik Meijer
  • Patent number: 7442280
    Abstract: A process for the production of paper from a suspension containing cellulosic fibers, and optional fillers, which comprises adding to the suspension a drainage and retention aid comprising a cationic organic polymer, forming and dewatering the suspension on a wire, wherein the cationic organic polymer has an aromatic group and the suspension which is dewatered on the wire has a conductivity of at least 2.0 mS/cm.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: October 28, 2008
    Assignee: Akzo Nobel NV
    Inventors: Bore Klemets, Hans Hallstrom, Anna Asplund, Rein Sikkar
  • Publication number: 20080261814
    Abstract: The present invention generally relates to a process for preparing the alkoxylated alkylamines and/or alkyl ether amines. The process consists of three stages, and utilizes an alkali catalyst. The alkoxylated alkyl amines and alkoxylated alkyl ether amines prepared by the process possess the peaked distribution and contain less hazardous by-product.
    Type: Application
    Filed: September 23, 2005
    Publication date: October 23, 2008
    Applicants: MONSANTO TECHNOLOGY LLC, AKZO NOBEL N.V.
    Inventors: Shawn Zhu, Giao Nguyen, Kha Nguyen, Alberto Slikta, David Eaton, David Becher, Henry Agbaje, Michael Seitz
  • Publication number: 20080250701
    Abstract: The present invention relates to a succinic diester polymer which is used in the preparation of water-in-oil macroemulsions. Said polymer, which has an excellent ability to stabilize a water-in-oil macroemulsion, has the formula (I) wherein L is a polyalkenyl group having a number average molecular weight of from 600 to 1,500, A1 and A2 independently are poly(alkyleneoxy) chains with a molecular weight of from 500 to 1,200, where each alkyleneoxy group contains 2 or 3 carbon atoms and the number of alkyleneoxy groups being ethyleneoxy groups is at least 50% of the total number of alkyleneoxy groups, and R1 and R2 independently are alkyl groups having of from 1 to 3 carbons atoms.
    Type: Application
    Filed: November 24, 2006
    Publication date: October 16, 2008
    Applicant: AKZO NOBEL N.V.
    Inventors: Albert Van De Berg, Anna Lif, Ingemar Uneback
  • Publication number: 20080234410
    Abstract: The invention relates to a coating composition comprising a) a polyacrylate polyol obtainable by polymerization of olefinically unsaturated monomers wherein at least 40 weight-% of the monomers comprises linear or branched alk(en)yl or alk(en)ylene groups having at least 4 carbon atoms; b) a polyester polyol obtainable by esterification of building blocks having ester-forming functional groups wherein at least 30 weight-% of the building blocks comprises linear or branched alk(en)yl or alk(en)ylene groups with at least 4 carbon atoms per ester-forming functional group, the polyester polyol having a hydroxy value above 280 mg KOH/g and a hydroxy functionality of at least 2, and c) an isocyanate-functional crosslinker.
    Type: Application
    Filed: August 16, 2006
    Publication date: September 25, 2008
    Applicant: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Antonius Hendrikus Gerardus Van Engelen, Martinus Adrianus Anthonius Maria Koenraadt, Antonius Josephus Van Der Putten
  • Patent number: 7425316
    Abstract: The invention relates to a process for production of hydrogen peroxide according to the anthraquinone process including altemate hydrogenation and oxidation of one or more quinones selected from anthraquinones and/or tetrahydro anthraquinones in a working solution comprising at least one quinone solvent and at least one hydroquinone solvent, wherein said at least one quinone solvent comprises isodurene in an amount from 15 to 100 wt %. The invention also relates to a composition useful as a working solution at production hydrogen peroxide.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: September 16, 2008
    Assignee: Akzo Nobel NV
    Inventors: Mats Nystrom, Christina Jarnvik
  • Publication number: 20080221266
    Abstract: The invention pertains to a process to polymerize one or more monomers wherein one or more initiators and optionally one or more surfactants are added to a polymerization mixture when the pressure in the polymerization reactor is dropping. This process allows a shorter polymerization time due to a higher pressure drop rate at the end of the polymerization reaction. Moreover, the cooling capacity of the polymerization reactor is used more efficiently.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 11, 2008
    Applicant: Akzo Nobel N.V.
    Inventors: Lambertus MEULENBRUGGE, Koen Antoon Kornelis VANDUFFEL, Hans WESTMIJZE
  • Publication number: 20080221269
    Abstract: A packaged peroxide formulation comprising a container and a liquid peroxide formulation, wherein said container has a volume of at least 50 litres and a vent area/volume ratio of at least 20 10-3 m2/m3, said liquid peroxide formulation satisfies the classification tests for organic peroxide type F, has a conductivity of at least 100 pS/m, is not an emulsion or suspension, and comprises (i) at least 33 wt % of an organic peroxide selected from the group consisting of diacyl peroxides, peroxyesters, peroxydicarbonates, peroxyketals, and monoperoxycarbonates, and (ii) optionally a phlegmatiser, the packaged peroxide formulation has a vent area that is at least equal to the minimum total vent area as determined by the 10 litre venting test.
    Type: Application
    Filed: July 20, 2006
    Publication date: September 11, 2008
    Applicant: AKZO NOBEL N.V.
    Inventors: Albert Lucas Korvemaker, Frans Johannes Hoogesteger, Petrus Paulus Waanders
  • Publication number: 20080221268
    Abstract: Aqueous coating composition comprising an oxidatively drying resin and an alkali-soluble acrylate having an acid number of at least 15 mg KOH/g in a content of at least 1.5 wt. %. Optionally a second acrylate can also be used, such as a polyurethane acrylate.
    Type: Application
    Filed: May 30, 2006
    Publication date: September 11, 2008
    Applicant: Akzo Nobel Coatings International B.V.
    Inventors: Detlef Thiel, Irene Buss