Patents Assigned to Akzo
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Publication number: 20110136989Abstract: 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: ApplicationFiled: February 16, 2011Publication date: June 9, 2011Applicant: AKZO NOBEL N.V.Inventors: Michael Philbin, Carmine Iovine, Jean-Pierre Leblanc
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Patent number: 7955473Abstract: The present invention relates to a process for producing paper which comprises: (vii) providing an aqueous suspension comprising cellulosic fibres, (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: GrantFiled: December 14, 2005Date of Patent: June 7, 2011Assignee: Akzo Nobel N.V.Inventors: Fredrik Solhage, Joakim Carlén, Birgitta Johansson
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Patent number: 7956096Abstract: The invention relates to thermally expandable thermoplastic microspheres comprising a polymer shell made from ethylenically unsaturated monomers encapsulating a propellant, said ethylenically unsaturated monomers comprising from 40 to 70 wt % of acrylonitrile, from 5 to 40 wt % of methacrylonitrile, from 10 to 50 wt % of monomers selected from the group consisting of esters of acrylic acid, esters of methacrylic acid and mixtures thereof, and said propellant comprising at least one of methane, ethane, propane, isobutane, n-butane and neo-pentane. The invention further relates to the production and use of the microspheres.Type: GrantFiled: February 9, 2007Date of Patent: June 7, 2011Assignee: Akzo Nobel N.V.Inventors: Ove Nordin, Heléne Ström, Christina Nyholm, Claes Hammer
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Patent number: 7954643Abstract: A derivative of aspartic acid is used as a collector for a phosphate containing mineral, such as apatite, in a froth flotation process. According to the invention the collector has a high selectivity for phosphate containing minerals even in the presence of carbonate minerals, such as calcite. The derivative has the formula (I) where RI is a hydrophobic group containing a hydrocarbon group of 6-24 carbon atoms; RII is an alkyl group with 1-7 carbon atoms or a group of the formula (B)yH, in which B is an alkyleneoxy group with 2-4 carbon atoms and y is a number from 1 to 10; and M is a group selected from the group consisting of a cation or hydrogen. Methods for producing the derivative are also described.Type: GrantFiled: November 5, 2004Date of Patent: June 7, 2011Assignee: Akzo Nobel N.V.Inventors: Ludwig Eisenhuth, Elisabeth Henriksson, Anders Klingberg
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Publication number: 20110126995Abstract: The present invention relates to a method for the production of paper from a suspension containing cellulosic fibers comprising adding to the suspension and/or to a formed paper prepared from the cellulosic suspension i) a nitrogen-containing organic compound separately and/or in conjunction with, ii) an aqueous dispersion of an acid anhydride and iii) at least one shading dye, draining the suspension on a wire to form a paper.Type: ApplicationFiled: January 26, 2009Publication date: June 2, 2011Applicant: Akzo Nobel N.V.Inventors: Marie Turunen, Jonas Liesén, Hubert Igel
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Publication number: 20110129409Abstract: 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: ApplicationFiled: May 22, 2009Publication date: June 2, 2011Applicant: Akzo Nobel N.V.Inventors: Hendrikus Wilhelmus Bakkenes, Johannes Albertus Maria Meijer, Allert Schokker
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Publication number: 20110121242Abstract: The present invention provides a process to prepare a masterbatch comprising more than 0 wt % and up to 70 wt % carbon black with a DBP absorption of at least 200 ml/100 g and a thermoplastic polymer and, optionally, further additives, comprising the steps of mixing in random order successively or simultaneously, at an elevated temperature, a liquid medium, carbon black, and thermoplastic polymer, and, optionally, the additives, wherein the liquid medium is ultimately present in an amount of more than 0 wt % and up to 80 wt % on the total weight of carbon black and thermoplastic polymer; subsequently cooling and pelletizing the composition; separating off the liquid medium by extraction with a solvent; and drying the composition. Additionally provided are a masterbatch suitable for preparing an electroconductive thermoplastic polymer composition and a process to prepare an electroconductive thermoplastic polymer composition.Type: ApplicationFiled: July 21, 2009Publication date: May 26, 2011Applicant: AKZO NOBEL N.VInventor: Robert Alex De Gunst
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Publication number: 20110118121Abstract: The invention relates to a method of solubilizing a plant growth regulating agent, and method comprising contacting said agricultural active with a solubilizing effective amount of at least one solubilizing agent, wherein said solubilizing agent comprises at least one alkyl quaternary ammonium surfactant, or at least one alkoxylated quaternary ammonium surfactant, or a mixture thereof. Plant growth regulating formulations are also claimed.Type: ApplicationFiled: July 3, 2009Publication date: May 19, 2011Applicant: AKZO NOBEL N.V.Inventor: Jinxia Susan Sun
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Patent number: 7942941Abstract: The present invention generally relates to oil compositions, primarily to fuel oil and petroleum compositions produced there from susceptible to wax formation at low temperatures, to polymeric amides for use with such fuel oil compositions, and to methods for their manufacture.Type: GrantFiled: April 5, 2005Date of Patent: May 17, 2011Assignee: Akzo Nobel N.V.Inventors: Rodney Lee Cravey, Stephen L. Mead
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Publication number: 20110111961Abstract: The present invention teaches a surfactant blend composition of at least one nonionic alkoxylate and at least one sugar-based surfactant, and its use as an adjuvant for pesticides. The pesticidal composition employing the surfactant blend composition of the invention realizes an efficacy that is unexpectedly superior to similar pesticidal compositions which employ only the individual surfactant components. The composition of the present invention is useful as a tank side additive, or as a component in herbicidal formulations. In addition the compositions of the present invention are useful as adjuvants for other pesticides, such as, fungicides, insecticides, plant growth regulators, acaracides and the like.Type: ApplicationFiled: July 3, 2009Publication date: May 12, 2011Applicant: AKZO NOBEL N.V.Inventor: Jinxia Susan Sun
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Publication number: 20110104377Abstract: The present invention pertains to a water-redispersible polymer powder composition based on at least one synthetic polymer and at least one natural latex. Preferably, the polymer powder contains up to about 90 wt. % of at least one water-insoluble, synthetic polymer, up to about 90 wt. % of least one natural latex, about 0 to 50 wt. % of at least one protective colloid, about 2 to 50 wt. % of at least one filler and/or anti-caking agent, as well as optionally further additives. In addition, the invention pertains to a process for the preparation of the polymer powder composition, the use thereof as an additive in building material compositions, as well as building material compositions containing the polymer powder composition.Type: ApplicationFiled: June 25, 2009Publication date: May 5, 2011Applicant: AKZO NOBEL N.V.Inventors: Alexander Zapf, Hans Wicki, Hongli Willimann, Urs Heini
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Publication number: 20110104812Abstract: Process for thermally stabilizing a polymer containing residues of a Sn(II), Sb(III), Pb(II), Bi(III), Fe(II), Ti(II), Ti(III), Mn(II), Mn(III), or Ge(II)-containing catalyst by treating the polymer at a temperature above its melting temperature with a peroxide selected from the group consisting of ketone peroxides, hydroperoxides, peracids, hydrogen peroxide, and mixtures thereof, wherein said peroxide is used in an amount less than 0.2 wt % based on the weight of the polymer and wherein the molar ratio of peroxy functionalities from said peroxide (p) to metal (M) ranges from 1 to 100; said metal (M) being selected from the group consisting of Sn(II), Sb(III), Pb(II), Bi(III), Fe(II), Ti(II), Ti(III), Mn(II), Mn(III), and Ge(II). The invention further relates to a method for determining the metal residue content of a polymer.Type: ApplicationFiled: July 8, 2009Publication date: May 5, 2011Applicant: AKZO NOBEL N.V.Inventors: Andreas Herman Hogt, Wilhelm Klaas Frijlink
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Publication number: 20110104378Abstract: The present invention pertains to a water-redispersible polymer powder based on at least one modified natural latex. The modified natural latex can be obtained by mixing natural latex with at least one radical initiator and/or oxidising agent, by mixing and reacting natural latex with at least one olefinically unsaturated monomer and with at least one radical initiator, and/or by mixing natural latex with at least one filler. Preferably, the polymer powder contains up to about 95 wt. % of least one natural latex, about 0 to 50 wt. % of at least one protective colloid, about 2 to 70 wt. % of at least one filler and/or anti-caking agent, as well as optionally further additives. In addition, the invention pertains to a process for the preparation of the polymer powder, the use thereof as an additive in building material compositions, as well as building material compositions containing the polymer powder.Type: ApplicationFiled: June 25, 2009Publication date: May 5, 2011Applicant: AKZO NOBEL N.V.Inventors: Hongli Willimann, Hans Wicki, Urs Heini, Alexander Zapf, Robert Koelliker
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Patent number: 7935666Abstract: The present invention relates to a detergent composition having from 3 to 75 percent by weight of at least one surfactant; and from 0.01 to 5 percent by weight percent of a copolymer composed of from about 70 to 100 mole percent of at least one amine-functional monomer, and from about 30 to 0 mole percent of at least one hydrophobic ethylenically unsaturated monomer, wherein said amine-functional monomer is not a quaternized amine, and wherein said copolymer has been at least partially neutralized. The detergent composition having the copolymers provides color protection and anti-pill properties in laundry applications.Type: GrantFiled: February 18, 2005Date of Patent: May 3, 2011Assignee: Akzo Nobel N.V.Inventors: Klin A. Rodrigues, Martin Crossman
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Publication number: 20110088860Abstract: The present invention relates to a process of producing a cellulosic product comprising (i) providing an aqueous suspension of cellulosic fibers, (ii) adding microfibrillar polysaccharide, (iii) adding thermoplastic microspheres, (iv) dewatering the suspension and forming a cellulosic product. The invention also relates to a process of producing a single layer cellulosic product comprising (i) providing an aqueous suspension of cellulosic fibers, (ii) adding microfibrillar polysaccharide derived from softwood and/or hardwood and optionally adding thermoplastic microspheres to the suspension, (iii) dewatering the suspension and forming a cellulosic product. The invention further relates to a cellulosic product obtainable from said processes. The invention also relates to a composition comprising microfibrillar polysaccharide and thermoplastic microspheres and the use thereof.Type: ApplicationFiled: June 15, 2009Publication date: April 21, 2011Applicant: AKZO NOBEL N.V.Inventors: Anette Monica Heijnesson-Hulten, Fredrik Solhage, John Sandstrom
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Publication number: 20110085169Abstract: 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 matType: ApplicationFiled: May 26, 2009Publication date: April 14, 2011Applicant: Akzo Nobel Coatings International B.V.Inventors: Alan Craighead, CLaude Griffith, Swie Lan Njo
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Publication number: 20110085995Abstract: 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: ApplicationFiled: December 20, 2010Publication date: April 14, 2011Applicant: AKZO NOBEL N.V.Inventors: Klein A. Rodrigues, Darin K. Griffith
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Patent number: 7923113Abstract: The invention relates to a multi-layer coating system comprising at least one layer a) comprising a coating composition a) comprising at—least one isocyanate-functional compound and at least one thiol-functional compound, and—at least one layer b) comprising an aqueous coating composition b), wherein at least one layer a) and at least one layer b) have at least one common layer boundary, and wherein coating composition b) comprises at least 17 mmol/kg, calculated on the weight of coating composition b), of a catalyst for the addition reaction of the at least one thiol-functional compound and the at least one isocyanate-functional compound.Type: GrantFiled: December 12, 2006Date of Patent: April 12, 2011Assignee: Akzo Nobel Coating International B.V.Inventors: Nazire Dogan, Josef Pancratius Maria Jonker, Robertus Petrus Cornelis Van Der Krogt, Peter Wijnands
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Publication number: 20110082290Abstract: A superhydrophilic amphiphilic copolymer and process for making the superhydrophilic amphiphilic copolymer includes a low molecular weight polysaccharide modified with a hydrophobic reagent, such as substituted succinic anhydride. The superhydrophilic amphiphilic copolymer system generates stable foam for use in applications, such as healthcare formulations, with low irritation of the eyes and skin.Type: ApplicationFiled: October 7, 2009Publication date: April 7, 2011Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Joseph B. Gardner, Michael J. Fevola, Frank C. Sun
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Patent number: 7919535Abstract: The invention relates to an aqueous sol containing silica-based particles which sol has a specific surface area of at least 115 m2/g aqueous sol and an S-value within the range of from 10 to 45% or contains silica-based particles having a specific surface area of at least 550 m2/g and less than 1000 m2/g SiO2. The invention further relates to processes for the production of said aqueous sol and the use of the aqueous sol containing silica-based particles as a drainage and retention aid in the production of paper as well as a process for the production of paper from an aqueous suspension containing cellulosic fibres, and optional filler, in which silica-based particles and at least one charged organic polymer are added to the cellulosic suspension.Type: GrantFiled: January 8, 2005Date of Patent: April 5, 2011Assignee: Akzo Nobel N.V.Inventors: Michael Persson, Marek Tokarz, Maj-Lis Dahlgren, Hans Johansson-Vestin