Patents Assigned to Akzo Nobel N.V.
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Publication number: 20120004147Abstract: The present invention relates to a coated particle including a particle including at least one chelating agent of the formula COOH—CHX—N—(CH2—COOH)2, wherein X stands for carboxyalkyl, alkyl, hydroxyalkyl or aminoalkyl, and alkyl is a C1-C4 alkyl group, and the coating on the particle includes at least one scale-inhibiting additive, a process to prepare such particle, and to the use thereof in detergents, in oil field applications, in agriculture and in water treatment.Type: ApplicationFiled: December 24, 2009Publication date: January 5, 2012Applicant: AKZO NOBEL N.V.Inventors: Johannes Wilhelmus Franciscus Lucas Seetz, Jéróme Mercanton, Paul Michael Ferm, Martin Heus, Zoltán Szilágyi, Cornelis Elizabeth Johannus van Lare
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Publication number: 20110303549Abstract: The invention provides a process for producing chlorine, alkaline metal hydroxide, and hydrogen which comprises the following steps: (a) preparing a brine by dissolving an alkaline metal chloride source in water; (b) removing alkaline precipitates from the brine prepared in step (a) in the presence of hydrogen peroxide by means of a filter of active carbon, and recovering the resulting brine; (c) subjecting at least part of the resulting brine as obtained in step (b) to an ion-exchange step; (d) subjecting at least part of the brine as obtained in step (c) to a membrane electrolysis step; (e) recovering at least part of the chlorine, alkaline metal hydroxide, hydrogen, and brine as obtained in step (d); (f) subjecting at least part of the brine as recovered in step (e) to a dechlorination step; and (g) recycling at least part of the dechlorinated brine obtained in step (f) to step (a).Type: ApplicationFiled: December 14, 2009Publication date: December 15, 2011Applicant: AKZO NOBEL N.V.Inventors: Antonius Jacobus Gerardus Manders, Jacoba Cornelia Petronella Adriana Oonincx, Sami Petteri Pelkonen, Massimo Giosafatte Borghesi
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Publication number: 20110297049Abstract: This invention relates to a powder comprising a carrier material which is in powdery form and selected from the group consisting of a water-soluble polymer, a water-insoluble polymer, and an inert inorganic material, and a mixture containing at least about 5 wt. % of a compound having the formula (1-a) and at least about 5 wt. % of a compound having the formula (1-b), HO—(R2O)m—H (1-a), R1aO—(R2aO)n—H (1-b). Claimed also are a process to make the powder, its use, as well as a dry mortar formulation containing the same.Type: ApplicationFiled: December 14, 2009Publication date: December 8, 2011Applicant: AKZO Nobel N.V.Inventors: Alexander Zapf, Erwin Bühler, Thomas Scherer
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Publication number: 20110294899Abstract: The present invention relates to defoaming compositions comprising compounds having the formula C5H11CH(CH2CH2CH3)CH2O(CH2CH(X)O)nH (I) where X=(CH2)aCH3 where a=0 or 1 and where n=0.5-5; and one or more hydrotropes selected from the group consisting of branched or linear C4-C10 alkyl glycosides and optionally one or more anionic hydrotrope selected from the group consisting of fatty acid soaps where the acyl group contains 10-22 carbon atoms, and which could be saturated or unsaturated, linear or branched; or a sulfonate chosen from the group cumene sulfonate and xylene sulfonate, and the use of such compositions as defoaming and/or antifoaming agents. The invention also pertains to a composition comprising a) a compound C5H11CH(CH2CH2CH3)CH2O(CH2CH(X)O)nH (I) where X=(CH2)aCH3 where a=0 or 1 and n=0.Type: ApplicationFiled: December 14, 2009Publication date: December 1, 2011Applicant: Akzo Nobel N.V.Inventors: Adrian Lang, Mahnaz Company
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Patent number: 8062758Abstract: A self-stabilizing dispersion composition having a copolymer having at least one polymerizable acid-containing moiety, wherein the at least one acid-containing moiety is at least partially neutralized before or during polymerization, and at least one hydrophobic moiety. A process for producing such compositions is also provided, as well as a process for encapsulating water-insoluble actives in such copolymers.Type: GrantFiled: December 20, 2010Date of Patent: November 22, 2011Assignee: Akzo Nobel N.V.Inventors: Klein A Rodrigues, Darin K. Griffith
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Patent number: 8058246Abstract: The present invention relates to a composition comprising at least one amylose-containing starch, and its use in extending or improving the color durability and stability of artificially colored hair. Such compositions may be applied either as a leave-on or as a rinse-off composition.Type: GrantFiled: February 27, 2004Date of Patent: November 15, 2011Assignee: Akzo Nobel N.V.Inventor: Samuel A. Vona, Jr.
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Patent number: 8058374Abstract: Hybrid copolymers for use as anti-sealant and dispersant. The polymers are useful in compositions used in aqueous systems. The polymers include at least one synthetic monomeric constituent that is chain terminated by a naturally occurring hydroxyl containing moiety. A process for preparing these hybrid copolymers is also provided.Type: GrantFiled: November 24, 2009Date of Patent: November 15, 2011Assignee: Akzo Nobel N.V.Inventors: Klin A. Rodrigues, Darin K. Griffith
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Patent number: 8048215Abstract: A process for primer coating steel which is intended to be fabricated and overcoated, in which process the steel is primer coated with a primer coating comprising a silica binder. The binder comprises alumina-stabilized aqueous silica sol and, optionally, a minor amount of alkali metal silicate. The binder has a SiO2/M2O mole ratio, wherein M represents the total of alkali metal and ammonium ions, of at least 6:1. After the primer coating has dried to the extent that it is touch dry, it is optionally treated with a solution which increases the film strength of the primer coating.Type: GrantFiled: September 11, 2001Date of Patent: November 1, 2011Assignee: Akzo Nobel N.V.Inventors: Gerald Howard Davies, Gillian Diane Davies, legal representative, Peter Harry Johan Greenwood, Paul Anthony Jackson
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Patent number: 8049039Abstract: The present invention generally relates to a process for preparing alkoxylated alkylamines and/or alkyl ether amines. The process consists of two stages and utilizes a catalyst with a multiple-charge counterion. The alkoxylated alkylamines and alkoxylated alkyl ether amines prepared by the process possess the peaked ethoxylation distribution and contain less hazardous by-product.Type: GrantFiled: June 21, 2007Date of Patent: November 1, 2011Assignee: Akzo Nobel N.V.Inventors: Giao Vinh Nguyen, James Alfred Ragains, Kha Carl Dang Nguyen, Charles Woodville Davis
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Patent number: 8044232Abstract: 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 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. The emulsions of the invention can be used as a diesel fuel, a gasoline fuel, a heating fuel, a dry cleaning liquid, a metalworking fluid or a personal care formulation.Type: GrantFiled: November 24, 2006Date of Patent: October 25, 2011Assignee: Akzo Nobel N.V.Inventors: Albert Van De Berg, Anna Lif, Ingemar Uneback
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Patent number: 8039428Abstract: Modified polysaccharide polymers for use as anti-sealant and dispersant. The polymers are useful in compositions used in aqueous systems. The modified polysaccharides are also useful in detergent formulations, water treatment, dispersants and oilfield applications and as fiberglass binders. Such applications include a modified polysaccharide having up to about 70 mole % carboxyl groups per mole of polysaccharide ASU and up to about 20 mole % aldehyde groups per mole of polysaccharide ASU. The applications can also include a blend of modified polysaccharides and other synthetic polymers.Type: GrantFiled: April 14, 2010Date of Patent: October 18, 2011Assignee: Akzo Nobel, N.V.Inventors: Klin A. Rodrigues, John S. Thomaides, A. Levent Cimecioglu, Martin Crossman
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Patent number: 8038884Abstract: The present invention relates to process to prepare a chlorine-containing compound using an aqueous salt solution containing at least 100 g/l of sodium chloride and a contaminating amount of polyvalent cations comprising the steps of (i) preparing an aqueous salt solution containing at least 100 g/l of sodium chloride and at least 0.01 ppm of polyvalent cations by dissolving a sodium chloride source in water, (ii) adding an effective amount of at least one positive retention enhancing component to the aqueous solution, (iii) subsequently subjecting the solution to a nanofiltration step, thereby separating the solution into a retentate which is enriched for polyvalent cations and a permeate which is the purified aqueous salt solution, (iv) reacting the chloride anions in the permeate to a chlorine-containing compound by an electrolysis step, and (v) recycling at least part of the retentate to dissolution step (i).Type: GrantFiled: February 13, 2006Date of Patent: October 18, 2011Assignee: Akzo Nobel N.V.Inventors: Gerrald Bargeman, René Lodewijk Maria Demmer, Antoon Ten Kate, Boris Kuzmanovic, Cornelis Elizabeth Johannus Van Lare, Mateo Jozef Jacques Mayer, Maarten André Irène Schutyser, Jan Barend Westerink
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Patent number: 8038883Abstract: The present invention relates to a process to prepare salt comprising the following steps: (i) preparing an aqueous salt solution containing at least 100 g/l of sodium chloride and at least 0.01 ppm of polyvalent cations by dissolving a sodium chloride source in industrial water, (ii) adding an effective amount of at least one positive retention enhancing component to the aqueous salt solution, (iii) subsequently subjecting the solution to a nanofiltration step, thereby separating the solution into a retentate which is enriched for the polyvalent cations and a permeate which is the purified aqueous salt solution, and (iv) concentrating the permeate to produce salt.Type: GrantFiled: February 13, 2006Date of Patent: October 18, 2011Assignee: Akzo Nobel N.V.Inventors: Gerrald Bargeman, René Lodewijk Maria Demmer, Antoon Ten Kate, Boris Kuzmanovic, Cornelis Elizabeth Johannus Van Lare, Mateo Jozef Jacques Mayer, Maarten André Irène Schutyser, Jan Barend Westerink
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Patent number: 8039518Abstract: The invention relates to particular orthoester based polymers as well as the use of specific orthoester beased polymers as a demulsifier for water/oil emulsions.Type: GrantFiled: April 3, 2007Date of Patent: October 18, 2011Assignee: Akzo Nobel, N.V.Inventors: Per-Erik Hellberg, Ingemar Uneback
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Patent number: 8039550Abstract: The present invention relates to a process for preparing a polymer dispersion comprising polymerising one or more water soluble anionic monomers (m1) and one or more non-ionic vinyl monomers (m2) present in a reaction mixture further comprising a polymeric stabiliser (B) and a polymeric co-stabiliser (C). It further relates to a polymer dispersion, the use of the polymer dispersion and a process for producing paper.Type: GrantFiled: May 19, 2006Date of Patent: October 18, 2011Assignees: Akzo Nobel N.V., Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung E.V.Inventors: Christian Przybyla, Oliver Struck, André Laschewsky, Bernd Paulke, Mathias Hahn
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Publication number: 20110247774Abstract: The present invention relates to a silica-based sol having a concentration of soluble silica of less than about 1000 mg SiO2/l, conductivity of at least about 2.0 mS/cm and S-value below about 50%. The invention further relates to a method of producing a silica-based sol comprising subjecting an aqueous alkali metal silicate solution to electrodialysis to form an electrodialyzed sol, and acidifying the electrodialyzed sol to form an acidified sol having a pH in the range of from about 5.0 to about 10. The invention further relates to silica-based sol obtainable by the process and to the use of the silica-based sol as a flocculating agent. The invention further relates to a process for producing paper which comprises providing an aqueous suspension comprising cellulosic fibers, adding to the suspension one or more drainage and retention aids comprising a silica-based sol according to the invention, and dewatering the obtained suspension to provide a sheet or web of paper.Type: ApplicationFiled: July 10, 2009Publication date: October 13, 2011Applicant: AKZO NOBEL N.V.Inventors: Marek Tokarz, Hans-Ake Baltsen
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Publication number: 20110247699Abstract: The present invention relates to the use of a zwitterionic surfactant in combination with an ether sulphate or ether carboxylate surfactant in a water-based system as a drag-reducing agent. The combination has besides a high drag-reducing effect also a low sensitivity to hard water.Type: ApplicationFiled: June 21, 2011Publication date: October 13, 2011Applicant: Akzo Nobel N.V.Inventors: Martin Hellsten, Hans Oskarsson
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Publication number: 20110247773Abstract: 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 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 (iii) dewatering the obtained suspension to form paper.Type: ApplicationFiled: May 3, 2011Publication date: October 13, 2011Applicant: AKZO NOBEL N.V.Inventors: Fredrik Solhage, Joakim Carlén, Birgitta Johansson
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Patent number: 8034227Abstract: The invention relates to a process for the production of alkali metal chlorate comprising: providing an electrochemical cell comprising an anode and a cathode in separate anode and cathode compartments; contacting the cathode with an electrolyte comprising at least one organic mediator and one or more organic or mineral acids; reacting the organic mediator at the cathode to form at least one reduced form of the mediator; reacting the at least one reduced form of the mediator with oxygen to form hydrogen peroxide; contacting the anode with an anolyte comprising alkali metal chloride; reacting chloride at the anode to form chlorine that is hydrolyzed; and, reacting the hydrolyzed chlorine to form chlorate.Type: GrantFiled: June 29, 2006Date of Patent: October 11, 2011Assignee: Akzo Nobel N.V.Inventors: Magnus Rosvall, Rolf Edvinsson Albers
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Patent number: 8034979Abstract: 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: GrantFiled: September 23, 2005Date of Patent: October 11, 2011Assignees: Monsanto Technology LLC, Akzo Nobel N.V.Inventors: Shawn Zhu, Giao Nguyen, Kha Nguyen, Alberto Slikta, David Eaton, David Becher, Henry Agbaje, Michael Seitz