Patents Assigned to Akzo Nobel N.V.
  • Patent number: 8308821
    Abstract: The present invention pertains to a process for decreasing and/or drying skins which comprises contacting the skins to be degreased and/or dried with one or more extractor solvents which are able to dissolve both fat and water. Preferably, the extractor solvent is selected from the group consisting of dimethyl ether (DME), methylal, dioxolane, diethyl ether, methyl ethyl ketone, ethanol, propanol, and isopropanol. Most preferably, the extractor solvent is DME.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: November 13, 2012
    Assignees: Akzo Nobel N.V., Gases Research Innovation and Technology S.L.
    Inventors: Hermanus Johannus Berkhout, Jose Ramon Garcia Del Rio
  • Patent number: 8298617
    Abstract: Process for preparing a cross-linked rubber article comprising the steps of: a) applying a sulfur-containing composition to the surface of a pre-shaped peroxide-containing cross-linkable rubber article to provide a sulfur-coated article, and b) cross-linking the rubber by heating the sulfur-coated article, optionally in the presence of air, at a temperature in the range of 80 to 300° C. to obtain the cross-linked rubber article.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: October 30, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Johannes Gerhardus Bernardus Bouwmeester, Robert Alex De Gunst, Haimo Tonnaer
  • Patent number: 8299183
    Abstract: The invention relates to a process for preparing an aqueous polymer dispersion comprising reacting, in the presence of a polymeric cationic co-stabilizer (A), one or more monomers (m), and a polymer (B) of a monomer mixture comprising at least one monomer (x) having a primary, secondary or tertiary amine or amide group and at least one olefinic unsaturation, and, at least one cationic monomer (y) having at least one olefinic unsaturation. The invention also relates to a polymer dispersion, a process for preparing a polymeric stabilizer (C), a polymeric stabilizer (C) and a process for producing paper.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: October 30, 2012
    Assignees: Akzo Nobel N.V., Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Mathias Hahn, Werner Jaeger, André Laschewsky, Bernd Paulke, Christian Przybyla, Achim Sieger
  • Patent number: 8293683
    Abstract: The present invention generally relates to an aqueous herbicidal formulation that comprises at least one phenoxy acid herbicide or an agriculturally acceptable salt or derivative thereof, and an alkylamidopropyl dialkylamine surfactant adjuvant, wherein said surfactant adjuvant comprises at least one surfactant having the formula (I) wherein R is a straight or branched chain, saturated or unsaturated acyl group having 6-22 carbon atoms, n is 3, and Y and Y? are, independently, an alkyl group having 1-4 carbon atoms or (AO)sH, wherein AO is an alkyleneoxy group having 2-4 carbon atoms, and s is on average 1-10; provided that at least one of the groups Y and Y? is an alkyl group having 1-4 carbon atoms; or a salt thereof; or a quaternized derivative of (I) having the formula (II) wherein R is a straight or branched chain, saturated or unsaturated acyl group having from 6 to 22 carbon atoms; n is 3; Y and Y? are, independently, an alkyl group having 1-4 carbon atoms or (AO)sH, wherein AO is an alkyleneoxy group
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: October 23, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Claes Johan Markus Jönsson, Shawn Zhu
  • Publication number: 20120264861
    Abstract: The present invention relates to a process for the production of powders redispersible in water comprising an organic component and a water-soluble organic polymeric protective colloid. The organic component is dispersed and stabilized with the protective colloid in water to form a stable dispersion which is dried to form the powder redispersible in water. The organic component comprises abietic acid, sylvic acid, neoabietic acid, levopinaric acid, pimaric acid, isopimaric acid and/or palustric acid and/or their derivatives. The water-soluble organic polymeric protective colloid comprises synthetic protective colloids and naturally and/or synthetically produced biopolymer which can be synthetically modified. The obtained powder reduces efflorescence in hydraulically set systems.
    Type: Application
    Filed: July 5, 2011
    Publication date: October 18, 2012
    Applicant: AKZO NOBEL N.V.
    Inventors: Thomas ABERLE, Adrian KELLER
  • Patent number: 8287764
    Abstract: The invention relates to coated particles comprising a core material and a shell and wherein said core material is an organic compound and wherein said shell comprises a layered double hydroxide comprising a hydroxide or an organic anion as charge-balancing anion.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: October 16, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Cornelis Elizabeth Johannus Van Lare, Auke Gerardus Talma, Hendrika Petronella Maria Verlaan-Hooft
  • Patent number: 8283292
    Abstract: The present invention relates to a composition comprising a) an anionic compound having wetting and dispersing properties selected from the group of a1) an alkyl naphthalene sulfonate, a2) a naphthalene sulfonate-formaldehyde condensate that may optionally be alkyl substituted and mixtures thereof, and b) a nitrogen-containing surfactant selected from the group consisting of alkylamine alkoxylates, alkylamidoamine alkoxylates, alkanolamides and their alkoxylates, alkylamidopropylamines, betaines, amino acids, or any mixtures thereof, wherein <the weight ratio between a) and b) is between 99.99:0.01 and 40:60 while> the molar amount of anionic sulfonate and, if any are present, carboxylate groups in the composition is in excess of the molar amount of nitrogen-containing groups. These compositions exhibit synergistic wetting properties as compared to the surface-active components taken alone. Further, the compositions also exhibit an increased rainfastness.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: October 9, 2012
    Assignee: Akzo Nobel N V
    Inventors: Karin Bergström, Christine Strandberg
  • Patent number: 8273216
    Abstract: The present invention relates to a process for producing paper which comprises: providing an aqueous suspension comprising cellulosic fibers, adding to the suspension, after all points of high shear, a cationic polysaccharide; and a polymer P2 being an anionic polymer; and, dewatering the obtained suspension to form paper.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: September 25, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Fredrik Solhage, Joakim Carlén, Birgitta Johansson
  • Publication number: 20120237462
    Abstract: An aqueous composition, for alleviating at least one problem that conventional aqueous cosmetic compositions, includes (A) at least one selected from the group consisting of a cross-linked product of a hydroxyalkyl modified starch with a carbon number of 2 to 5, a cross-linked product of a hydroxyalkyl modified starch with a carbon number of 2 to 5 and an acyl modified starch with a carbon number of 2 to 18 and a cross-linked product of an acyl modified starch with a carbon number of 2 to 18; and (B) a water-soluble polymer material. When the water-soluble polymer material (B) is an association type poly(meth)acrylate polymer, a nonionic or cationic cellulose polymer, a poly(meth)acrylic acid polymer or xanthan gum, the aqueous composition exhibits excellent viscosity increase ratio and temporal stability.
    Type: Application
    Filed: April 16, 2012
    Publication date: September 20, 2012
    Applicant: AKZO NOBEL N.V.
    Inventor: Tomohiro Hashimoto
  • Patent number: 8268122
    Abstract: The present invention relates to a process for preparing a high-yield pulp comprising a) treating a lignocellulose containing material chemically by means of an oxidizing system comprising at least one non-enzymatic oxidant substantially free from ozone and chlorine dioxide and an activator at a pH from about 2 to about 6.5; and b) treating the lignocellulose containing material mechanically for a time sufficient to produce a high-yield pulp, wherein the lignocellulose containing material is chemically treated prior to and/or during any mechanical treatment stage, and wherein the lignocellulose containing material is not chemically treated at a pH from about 11.5 to about 14 between stages a) and b).
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: September 18, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Karin Susanne Maria Walter, Eva Linnea Elisabeth Wackerberg, Magnus Lars Paulsson
  • Patent number: 8268189
    Abstract: Accelerator solution suitable for forming a redox system with peroxides and having a high storage stability, consisting essentially of (a) more than 1.0 wt % of one or more reducing agents, at least one of them being selected from ascorbic acid and sodium formaldehyde sulphoxylate, (b) one or more metal salts, at least one of them being selected from the group consisting of transition metal salts, lithium salts, and magnesium salts, (c) one or more organic oxygen-containing solvents, (d) optionally one or more stabilisers, and (e) optionally water.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: September 18, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Frederik Willem Karel Koers, Anna Gerdine Van De Bovenkamp-Bouwman
  • Patent number: 8252071
    Abstract: The invention relates to an aqueous fuel composition having a homogeneous liquid phase, a so called microemulsion, containing a liquid hydrocarbon fraction, ethanol and an additive with an emulsifying and solubilizing ability. The composition comprises a) 70-95% by weight of an hydrocarbon fraction having a boiling point within the range from 130 to 425° C., b) 2-25% by weight of ethanol, c) 0.002-0.8% by weight of water, and d) 0.2-25% by weight of an additive comprising 5-100% by weight of an nitrogen-containing surfactant, such as an amine surfactant, an ether amine surfactant, an amine oxide surfactant and an amido surfactant, and optionally an alcohol having a hydrocarbon group of 5-24 carbon atoms. Preferably the additive comprises 5-90% by weight of the nitrogen-containing surfactant and 10-95% by weight of the alcohol. The composition, which can be stored for long periods, may be used as a fuel in diesel engines.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: August 28, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Anna Lif, Sara Olsson
  • Patent number: 8252143
    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: June 10, 2005
    Date of Patent: August 28, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Erik Sanne, Rune Kjell Andersson, Johan Nyander
  • Patent number: 8241601
    Abstract: The invention relates to a process for the production of a layered double hydroxide comprising carbonate by preparing a divalent and trivalent metal ion source-containing slurry, which is subsequently treated solvothermally. If the slurry does not contain a divalent metal ion source containing carbonate, a carbonate source is added during or after the solvothermal treatment.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: August 14, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Marianne Frederika Reedijk, Auke Gerardus Talma, Aaldert Johannes De Jong
  • Publication number: 20120186765
    Abstract: The present invention relates to a drainage and retention aid composition which comprises: (d) a first anionic component which is a water-soluble anionic organic polymer; (e) a second anionic component which is a water-dispersible or branched anionic organic polymer; and (f) a third anionic component which is an anionic siliceous material; wherein the first, second and third anionic components are present in a dry matter content of from 0.01 to 50% by weight.
    Type: Application
    Filed: February 15, 2012
    Publication date: July 26, 2012
    Applicant: AKZO NOBEL N.V.
    Inventors: Johan NYANDER, Fredrik SOLHAGE
  • Patent number: 8227381
    Abstract: Low molecular weight graft copolymer comprising a synthetic component formed from at least one or more olefinically unsaturated carboxylic acid monomers or salts thereof, and a natural component formed from a hydroxyl-containing natural moiety. The number average molecular weight of the graft copolymer is about 100,000 or less, and the weight percent of the natural component in the graft copolymer is about 50 wt % or greater based on total weight of the graft copolymer. Processes for preparing such graft copolymers are also disclosed.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: July 24, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Klin A. Rodrigues, Jannifer Sanders
  • Publication number: 20120184685
    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: February 13, 2012
    Publication date: July 19, 2012
    Applicant: AKZO NOBEL N.V.
    Inventors: Albert Lucas KORVEMAKER, Frans Johannes HOOGESTEGER, Petrus Paulus WAANDERS
  • Patent number: 8216443
    Abstract: The invention relates to a process for producing alkali metal chlorate in an electrolytic cell that is divided by a cation selective separator into an anode compartment in which an anode is arranged and a cathode compartment in which a gas diffusion electrode is arranged. The process comprises introducing an electrolyte solution containing alkali metal chloride into the anode compartment and an oxygen-containing gas into the cathode compartment. The invention also relates to an electrolytic cell for the production of alkali metal chlorate comprising a cation selective separator dividing the cell into an anode compartment in which an anode is arranged and a cathode compartment in which a gas diffusion electrode is arranged. An inlet for electrolyte solution and an outlet for electrolysed solution are provided in the anode compartment and an inlet for introducing oxygen-containing gas is provided in the gas chamber.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: July 10, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Bo Håkansson, Eduardo Fontes, Fredrik Herlitz, Viktoria Lindstrand
  • Publication number: 20120156125
    Abstract: Process for the continuous production of chlorine dioxide comprising generating chlorine dioxide in an aqueous reaction medium in a reaction vessel (1) maintained at sub-atmospheric pressure, bringing gaseous chlorine dioxide from said reaction vessel to an absorption tower (7) and contacting it therein with a flow of water to form an aqueous solution containing chlorine dioxide, bringing said aqueous solution containing chlorine dioxide to a stripper (12), blowing a gas through said aqueous solution of chlorine dioxide in the stripper to strip off from 10 to 100% of the chlorine dioxide entering the stripper and form a gaseous chlorine dioxide product.
    Type: Application
    Filed: June 11, 2010
    Publication date: June 21, 2012
    Applicant: AKZO NOBEL N.V.
    Inventors: Kalle Hans Thomas Pelin, Nils Torgny Björkman
  • Patent number: 8192838
    Abstract: The invention relates to polymers whose water solubility may be triggered by changes in pH, salt concentration, concentration of surfactant or a combination of both. The polymer is a copolymer or terpolymer containing from 2 to 60 mole percent of an amine functionality that has been neutralized with a fixed acid. Specifically films formed from these polymers will be insoluble at a higher pH, but will become soluble at a lower pH. The polymers are also insoluble at a higher salt concentration, but become soluble at a lower salt concentration. The polymers can be used to coat or encapsulate active ingredients, that are released based on changes in the environment, such as in the rinse cycle of a dishwasher or laundry washing machine.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: June 5, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Susanne H. Goodson, Klein A. Rodrigues