Patents Assigned to Akzo Nobel N.V.
  • Patent number: 8833450
    Abstract: The present invention relates to nitrogen-containing hydroxyethyl substituted compounds to be used as corrosion inhibitors for metal surfaces, for example in aqueous systems and in particular in oil-field applications, e.g. in oil or gas wells, and which could be used under sweet-well conditions as well as under sour-well conditions. It may also be used in oil-field acidizing and fracture-acidizing well stimulation treatment. The compounds belong to the group of partly ethoxylated fatty alkylamines, partly ethoxylated alkyletheramines and partly or fully hydroxyethyl substituted alkylamidopropylamines.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: September 16, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Kornelis Overkempe, William John Ernest Parr, Johanna Christina Speelman
  • Publication number: 20140256998
    Abstract: Anti-agglomerants for gas hydrates, comprising alkoxylated and/or acylated non-quaternary nitrogen-containing compounds, method for inhibiting the agglomeration of gas hydrates in a conduit, and compositions comprising the gas hydrate anti-agglomerant, a corrosion inhibitor and/or a paraffin deposition inhibitor.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Applicant: AKZO NOBEL N.V.
    Inventors: Martin HELLSTEN, Hans OSKARSSON
  • Patent number: 8829120
    Abstract: Ethanol soluble or dispersible polyetheramide polymers that have a percent elongation to break of less than 100%. The polymers are formed from a reaction mixture comprising at least one or more poly(alkyleneoxy)diamines and one or more diacids. The reaction mixture can optionally include one or more aliphatic diamines in addition to the one or more poly(alkyleneoxy)diamines. The polyetheramide polymers have application in personal care compositions such as hair fixative compositions, for example, hair spray formulations.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: September 9, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Michael Philbin, Carmine Iovine, Jean-Pierre Leblanc
  • Patent number: 8828911
    Abstract: Gel prevention agents and methods for use with agricultural products include certain alkylamido amines and their quaternary ammonium counterparts that, when blended with products containing alkoxylated surfactants, the alkylamido amines and their quaternary counterparts reduce the gel formation tendency of such products.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: September 9, 2014
    Assignee: Akzo Nobel N.V.
    Inventor: Shawn Zhu
  • Patent number: 8828188
    Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 9, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Erik Sanne, Rune Kjell Andersson, Johan Nyander
  • Patent number: 8821754
    Abstract: The present invention relates to the use of a specific group of alkoxylated and/or acylated non-quaternary nitrogen-containing compounds as anti-agglomerants for gas hydrates. The invention also relates to a method for inhibiting the agglomeration of gas hydrates in a conduit, and compositions comprising the gas hydrate anti-agglomerant, a corrosion inhibitor and/or a paraffin deposition inhibitor.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: September 2, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Martin Hellsten, Hans Oskarsson
  • Patent number: 8802613
    Abstract: The present invention is directed to a stabilized hydrogen peroxide solution containing stabilizers that maintain relatively high hydrogen peroxide stability in both concentrated form and when formulated into a cleaning solution that has a pH above 6 and contains components that normally would have a destabilizing effect on the hydrogen peroxide. The stabilizers include a first cyclic amino methane diphosphonic acid compound stabilizer in combination with a second phosphonic acid based stabilizer (different from the cyclic amino methane diphosphonic acid compound), wherein the weight ratio of the first stabilizer to the second stabilizer is at least about 2:1.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: August 12, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: David J. Bonislawski, David C. Lovetro
  • Patent number: 8790493
    Abstract: The present invention relates to a process for producing paper which comprises: (vii) providing an aqueous suspension comprising cellulosic fibers, (viii) adding to the suspension after all points of high shear a first polymer being a cationic polymer having a charge density above 2.5 meq/g; a second polymer, and a third polymer being an organic or inorganic anionic polymer; and (ix) dewatering the obtained suspension to form paper.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: July 29, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Fredrik Solhage, Joakim Carlén, Birgitta Johansson
  • Patent number: 8790629
    Abstract: The present invention is directed to heat treated xanthan gums, which have improved solution viscosity over other xanthan gums heat-treated under the same processing conditions while maintaining the improved ease of use and the short, non-stringy gel texture of heat treated xanthan gums. Such high solution viscosity xanthan gums are suitable in a variety of applications, including cosmetic and personal care compositions.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: July 29, 2014
    Assignee: Akzo Nobel N. V.
    Inventors: Hongjie Cao, Gary T. Martino
  • Patent number: 8783503
    Abstract: Packaged formulation comprising a compound liable to exothermic decomposition and optionally one or more organic diluents, said formulation being packaged in a container with a volume of at least 250 liter provided with a vent to release gases and made from a thermoplastic material having a Vicat B softening temperature not higher than (a) the run-away temperature of the compound liable to exothermic decomposition if the formulation does not contain any diluent, or (b) the boiling temperature of at least 50 wt % of the total weight of diluent if the formulation does contain organic diluent.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: July 22, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Petrus Paulus Waanders, Johannes Harmannus Gerardus Lok
  • Patent number: 8771380
    Abstract: The present invention pertains to a process for producing sodium chloride comprising the steps of (i) preparing a brine comprising at least 150 g/l of sodium chloride by dissolving a sodium chloride source in water, (ii) subjecting the resulting brine to a eutectic freeze crystallization step by indirect cooling of said brine, resulting in the formation of ice, sodium chloride dihydrate, and a mother liquor, (iii) separating the sodium chloride dihydrate formed in step (ii) from the ice and optionally mother liquor at the eutectic temperature, such that a sodium chloride dihydrate-rich stream is formed, and (iv) feeding said sodium chloride dihydrate-rich stream to a recrystallizer to form sodium chloride and a mother liquor.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: July 8, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Hendrikus Wilhelmus Bakkenes, Johannes Albertus Maria Meijer, Allert Schokker
  • Patent number: 8771798
    Abstract: An anti-fouling composition which comprises a cured or cross-linked polymer free of perfluoropolyether moieties and a fluid fluorinated alkyl- or alkoxy-containing polymer or oligomer. Preferably, the fluorinated alkyl- or alkoxy-containing polymer or oligomer comprises a repeating unit of the general formula: —{[CFR—(CFR)m—(O)n]p—[CFR—O]q}— wherein n is 0 or 1, m is an integer from 0 to 4, R independently is H, F, Cl, Br, or CF3, and the ratio q/p is 0-10, and the fluorine-free polymer is an organosiloxane-containing polymer comprising a repeating unit of the general structure —[SiR1R2—O]—, wherein R1 and R2 are independently hydrogen, alkyl, aryl, aralkyl, or a vinyl group.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: July 8, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: David Neil Williams, Nigel Ivor Edward Shewring, Adrian James Lee
  • Patent number: 8765639
    Abstract: The present invention generally relates to a herbicidal formulation that comprises at least one phenoxy acid herbicide or an agriculturally acceptable salt or derivative thereof, and a surfactant adjuvant, wherein said surfactant adjuvant comprises at least one alkoxylated asymmetric alkylamine surfactant having the formula (I) wherein R1 is a straight or branched chain, saturated or unsaturated hydrocarbyl group having from 8 to 24 carbon atoms; R2 is a C1-C4 alkyl group or a benzyl group; A is an alkylene group containing from 2-4 carbon atoms; x is 1-30; and y is 0-10; or a quaternised derivative of (I) having the formula (II) wherein R1 is a straight or branched chain, saturated or unsaturated hydrocarbyl group having from 8 to 24 carbon atoms; R2 is a C1-C4 alkyl group or a benzyl group; A is an alkylene group containing from 2-4 carbon atoms; x is 1-30; y is 0-10; R3 is a C1-C4 alkyl group; and Y? is an anion.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: July 1, 2014
    Assignee: Akzo Nobel N.V.
    Inventor: Claes Johan Markus Jönsson
  • Patent number: 8765644
    Abstract: The present invention generally relates to emulsifiers for oil-based drilling fluids and muds comprising an emulsifier based on the polyamides derived from fatty acid/carboxylic acid and optionally alkoxylated polyamines. The invention also relates to oil or synthetic based drilling fluids comprising the emulsifiers of the invention and to drilling methods utilizing same.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: July 1, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Hua Yu, Dale Stanley Steichen, Alan Duncan James, Jon B. Staley, Thomas William Himmel
  • Patent number: 8764963
    Abstract: A process for producing alkali metal chlorate that includes introducing an electrolyte solution containing alkali metal halide and alkali metal chlorate to an electrolytic cell, electrolyzing the electrolyte solution to produce an electrolyzed chlorate solution, transferring the electrolyzed chlorate solution to a chlorate reactor to produce a more concentrated alkali metal chlorate, wherein the electrolytic cell is a non-divided electrolytic cell that includes: at least one anode or at least one cathode that includes an electrode substrate comprising M(n+1)AXn, where M is a metal of group IIIB, IVB, VB, VIB or VIII of the periodic table of elements or a combination thereof, A is an element of group IIIA, IVA, VA or VIA of the periodic table of elements or a combination thereof, X is carbon, nitrogen or a combination thereof, where n is 1, 2, or 3; and an outlet for transferring electrolyzed solution to the chlorate reactor.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: July 1, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Magnus Rosvall, Rolf Edvinsson-Albers, Kristoffer Hedenstedt
  • Publication number: 20140174683
    Abstract: The present invention relates to a process for producing paper which comprises: (i) providing an aqueous suspension comprising cellulosic fibres, (ii) adding to the suspension after the last point of high shear subsequent a centri-screen: (a) a first anionic component which is a water-soluble anionic anionic polysaccharide; (b) a second anionic component which is a water-dispersible or branched acrylamide-based polymer; and (c) a third anionic component which is an anionic siliceous material comprising an anionic silica-based polymer comprising anionic silica-based particles having a specific surface area within the range of from 100 to 1700 m2/g (iii) dewatering the obtained suspension to form paper.
    Type: Application
    Filed: October 11, 2013
    Publication date: June 26, 2014
    Applicant: AKZO NOBEL N.V.
    Inventors: Johan NYANDER, Fredrik SOLHAGE
  • Publication number: 20140179953
    Abstract: The present invention relates to a process to prepare ethylene amines by the amination of ethylene oxide, ethylene glycol or ethanolamine in the presence of a catalyst, comprising a step wherein methylamine and/or ethylamine are removed from the reaction effluents.
    Type: Application
    Filed: September 27, 2013
    Publication date: June 26, 2014
    Applicant: Akzo Nobel N.V.
    Inventors: Martin Stefan HANSON, Leif Kenny Christian GUSTAFSON, Johan LIF, Boris KUZMANOVIC, Ulf SCHRÖDER
  • Patent number: 8741052
    Abstract: The present invention relates to a bitumen or asphalt formulation for the pavement of road surfaces, said formulation comprising a mixture of bitumen and aggregates, and an additive package evenly distributed therein, said additive package comprising from about i) 10 to 60% by weight of an amine or modified amine surfactant, ii) from about 20 to 90% of an asphalt rheology modifying component.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: June 3, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Premnathan Naidoo, Sundaram Logaraj, Alan Duncan James
  • Patent number: 8728274
    Abstract: The present invention relates to a method of treating an aqueous suspension of bleached pulp derived from an alkaline pulping process comprising dewatering and drying said suspension, wherein the pH of the suspension to be treated ranges from about 6.5 to about 12.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: May 20, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Thomas Christopher Greschik, Hans Johansson-Vestin, Håkan Fägersten
  • Patent number: 8709169
    Abstract: The present invention relates to the use of an alkyl di(lower alkyl)mono(polyoxyethylene) quaternary ammonium compound as a hydrotrope in 5 aqueous solutions for a nonionic surfactant, preferably a C8-C18-alcohol alkoxylate containing 1-20 ethyleneoxy units and 0-5 propyleneoxy units. It also relates to a composition comprising said quaternary ammonium compound and said nonionic surfactant. The cationic surfactant has the formula 10 R2+R(1)N(CH2CH2O)n H X R1 wherein R?C6-C22 alkyl; R1 and R2 are independently a C1-C4 alkyl group; n=8-25; and X? is an anion. The compositions may be used for the cleaning of hard surfaces, for example for vehicle cleaning or machine dishwashing.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: April 29, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Mahnaz Company, Kornelis Overkempe, Adrianus Marinus Groenewegen