Patents Assigned to Akzo Nobel Chemicals International B.V.
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Patent number: 9724706Abstract: The present invention relates to a method for the flotation of silicates from ores in the presence of a collecting agent and an effective amount of a froth modifier/collecting booster comprising at least one of the compounds of general formula I or mixtures thereof: wherein X is C1-C3 alkyl; R? is straight or branched hydrocarbyl group containing 8 to 22 carbon atoms; n is integer from 2-4; m can vary from 0 to 2 and R? is X or —(CH2)n-N(X)2, with the proviso that when R? is —(CH2)n-N(X)2, then m is 1.Type: GrantFiled: December 12, 2016Date of Patent: August 8, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Odair Alves De Lima, Kelly Ivone Pina Albino
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Patent number: 9717239Abstract: Disclosed is an agricultural composition comprising at least one agricultural chemical and at least one cellulose ether, wherein the cellulose ether is a nonionic methylethylhydroxyethyl cellulose (MEHEC) polymer as well as a method for reducing spray drift during the spraying of an aqueous solution. The method comprises combining the MEHEC polymer with at least one agricultural chemical to obtain the aqueous solution and spraying the aqueous solution. Also disclosed is a method for increasing resistance to rain wash off of an aqueous solution sprayed onto a surface.Type: GrantFiled: March 11, 2014Date of Patent: August 1, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Jinxia Susan Sun, Qiwei He, Shawn Zhu, Logan Dempsey, Michael Walters, Peter Westbye
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Patent number: 9718939Abstract: The invention relates to a method of preparing expanded thermoplastic microspheres from thermally expandable thermoplastic microspheres comprising a polymer shell encapsulating a foaming agent, the method comprising heating the expandable microspheres within a flexible container (2) to effect expansion of said microspheres and withdrawing gas from said flexible container (2). The invention further relates to an expansion device for preparing such expanded thermoplastic microspheres.Type: GrantFiled: September 4, 2013Date of Patent: August 1, 2017Assignee: Akzo Nobel Chemicals International B.V.Inventors: Lars-Olof Svedberg, Per Ajdén
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Patent number: 9688783Abstract: Process for functionalizing an ethylene-based (co)polymer comprising the step of contacting an ethylene-based (co)polymer at a temperature in the range 100-250° C. with an azide of formula (I) wherein Y is either (Ia) or (Ib) m is 0 or 1, n is 0 or 1, n+m=1 or 2, and X is a linear or branched, aliphatic or aromatic hydrocarbon moiety with 1-12 carbon atoms, optionally containing heteroatoms.Type: GrantFiled: October 31, 2014Date of Patent: June 27, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Waldo Joseph Elisabeth Beek, Auke Gerardus Talma
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Patent number: 9689077Abstract: The present invention relates to a process for production of alkali metal chlorate, and to a method of activating a cathode comprising electrolyzing an electrolyte comprising alkali metal chloride in an electrolytic cell in which at least one anode and at least one cathode are arranged wherein a) said electrolyte comprises chromium in any form in an amount ranging from about 0.01-10?6 to about 500-10?6 mol/dm3 b) said electrolyte comprises molybdenum, tungsten, vanadium, manganese and/or mixtures thereof in any form in a total amount ranging from about 0.1-10?6 mol/dm3 to about 0.5-10?3 mol/dm3.Type: GrantFiled: April 23, 2010Date of Patent: June 27, 2017Assignee: Akzo Nobel Chemicals International B.V.Inventors: Magnus Rosvall, Kristoffer Hedenstedt, Annicka Sellin, Johan Gustavsson, Ann Cornell
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Patent number: 9683057Abstract: Process for modifying a polymer in the absence of elemental sulfur amounts larger than 0.5 phr, comprising the steps of a. mixing said polymer with a maleimide-functionalized mono-azide at a temperature in the range 80-250° C. to form a functionalized polymer, and b. thermally treating the functionalized polymer at a temperature in the range 50-270° C.Type: GrantFiled: October 31, 2014Date of Patent: June 20, 2017Assignee: Akzo Nobel Chemicals International B.V.Inventors: Waldo Joseph Elisabeth Beek, Auke Gerardus Talma
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Publication number: 20170158950Abstract: A controlled release composition containing a water-active material in the form of granules having a protective barrier coating capable of releasing the water-active material under predetermined release conditions, wherein the protective barrier coating comprises a polymer blend of two latex polymers, a method of preparing such a composition, a sprayable solution useful in the preparation of the composition, and the use of the composition for breaking a fracturing fluid.Type: ApplicationFiled: July 17, 2015Publication date: June 8, 2017Applicant: Akzo Nobel Chemicals International B.V.Inventors: Paul Michael Ferm, Andrew Alexander Robertson, Kurt Randall Heidemann, Jian Zhou, Daniel Bode, Jude Thomas Rademacher, Patricia B. Siuta-Cruce
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Patent number: 9670067Abstract: The present invention relates to a particle of modified silica which comprises a particle of silica which is covalently linked to at least one halohydrin moiety. Furthermore, the present invention relates to a method of preparing the particle of modified silica, a particle of modified silica obtained by such method, use of the particle of modified silica as a stationary phase for chromatography, as well as a separation column for chromatography comprising the particle of modified silica.Type: GrantFiled: June 20, 2014Date of Patent: June 6, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Per Anders Restorp, Anders Törncrona, Johan Lif, Joakim Erik Patrik Högblom
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Patent number: 9650535Abstract: The invention relates to a method of providing an aqueous paint dispersion comprising silanized colloidal silica particles and an acrylate-based binder wherein the weight ratio of SiO2 to acrylate-based binder on a dry basis ranges from 0.02 to 0.2, and wherein the content of SiO2, measured by XRF, in said dispersion ranges from 1.05 to 7.5 wt %, wherein silane groups present in the silanized colloidal silica particles are derived from silanes containing an epoxy group, glycidoxy group, glycidoxypropyl group, ureido-based silanes, methacrylamido silanes, mercapto silanes, and combinations thereof. The invention also relates to the use thereof.Type: GrantFiled: May 6, 2013Date of Patent: May 16, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
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Patent number: 9637639Abstract: The present invention relates to a method of producing a dispersion comprising a) mixing an aqueous dispersion of silanized colloidal silica particles with at least one organic compound containing at least two hydroxyl groups to provide an aqueous dispersion of silanized colloidal silica particles and said at least one organic compound, wherein the mixing is performed in the substantial absence of any monofunctional alcohol b) withdrawing water from the formed aqueous dispersion until the remainder of water in the dispersion is below about 10 wt %. The invention also relates to a dispersion obtainable therefrom and the use of the dispersion.Type: GrantFiled: November 1, 2010Date of Patent: May 2, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
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Patent number: 9637868Abstract: A bitumen containing composition, comprising bitumen and a phosphate compound, which is obtainable by the esterification of a polyhydric alcohol having at least three hydroxyl groups, with a carboxylic acid having 8-24 carbon atoms, preferably 12-22 carbon atoms, or a derivative thereof, wherein at least one but not all of the hydroxyl groups are esterified, provided that when the polyhydric alcohol has 5 or more hydroxyl groups then at least two but not all of the hydroxyl groups are esterified, followed by reacting the ester obtained with a phosphatising reagent; wherein the said composition is not a bitumen-in-water emulsion.Type: GrantFiled: October 29, 2013Date of Patent: May 2, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Johan Nordberg, Daniel Hagberg, Natalija Gorochovceva
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Patent number: 9631055Abstract: Pre-polymer according to structure (I) X—(R2—O)n—CH2—O—(R1—O)m—CH2—(O—R2)p—X (I) wherein R1 and R2 can be the same or different and are selected from alkane chains containing 2-10 carbon atoms, X is a halogen atom, and n, m, and p are integers that can be the same of different and have a value in the range 1-6. The use of this pre-polymer in the preparation of a liquid polysulfide polymer allows better control over the sulfur and oxygen content and the polarity of the resulting polymer.Type: GrantFiled: June 13, 2014Date of Patent: April 25, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Manfred Menzel, Daniela Lungu, Olaf Klobes, Heinz Aldenhoven, Antonius Van Pelt, Volker Burkhardt
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Patent number: 9603787Abstract: A non-whitening sunscreen formulation for application to wet skin includes a surfactant system and organic UV absorbing materials where surfactant system includes a silicon based surfactant and a nonionic Gemini surfactant. Methods of making the sunscreen formulation are also included.Type: GrantFiled: August 27, 2014Date of Patent: March 28, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Michael Russell, Qiwei He
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Patent number: 9587171Abstract: The present invention relates to a process for treating a subterranean formation wherein a fluid containing an ammonium salt of glutamic acid N,N-diacetic acid (GLDA) or methylglycine N,N-diacetic acid (MGDA) is introduced into the formation.Type: GrantFiled: December 14, 2011Date of Patent: March 7, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Cornelia Adriana De Wolf, James N. Lepage, Hisham Nasr-El-Din, Mohamed Ahmed Nasr-El-Din Mahmoud, Edwin Rudolf Antony Bang, Noble Thekkemelathethil George
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Patent number: 9562114Abstract: Cyclic carbonate azide having a structure according to the following formula (A) wherein R1-R5 are independently selected from the group consisting of hydrogen, C6-20 aryl, C7-36 aralkyl, and C1-30 alkyl groups; said aryl, aralkyl, and alkyl groups my optionally be substituted with heteroatoms, X is a hydrocarbon moiety having at least one carbon atom, T has the structure —N(R6)— or —O—, R6 is selected from the group consisting of hydrogen and C1-20 alkyl groups, optionally substituted with heteroatoms, k is 0, 1, or 2, m is 0 or 1, n is 0 or 1, p is 1 or 2, Z is an aliphatic or aromatic hydrocarbon moiety having at least one carbon atom, optionally substituted with heteroatoms, and Y is either (B) or C) or (D).Type: GrantFiled: October 31, 2014Date of Patent: February 7, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Waldo Joseph Elisabeth Beek, Auke Gerardus Talma
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Patent number: 9556378Abstract: The present invention relates to a chelating agent precursor that contains glutamic acid N,N-diacetic acid (GLDA) and/or methylglycine N,N-diacetic acid (MGDA) wherein at least one of the carboxylic acid groups is present as a carboxylic acid derivative selected from the group of amides, anhydrides, and esters, combinations thereof, and salts thereof, provided that it is not the triethyl ester of GLDA, the triethyl mono-t-butyl ester of GLDA, the tri-t-butyl ester of GLDA, the monobenzyl tri-t-butyl ester of GLDA, any ester or amide that contains azacycloalkane groups, any amide that contains biotin groups, any amide that contains minoethylcarbamoyl based amide groups, (S)-diethyl 2,2?-(1-benzyloxy)-1,5-dioxo-5-(prop-2-ynylamino)pentan-2-ylazanediyl-diacetate, diethyl 2,2?-(5-(3-azidopropylamino)-1-(benzyloxy)-1,5-dioxo-pentan-2-ylazanediyl-diacetate, the trimethyl ester of MGDA, the monomethyl ester dimethylamide of MGDA, the dibenzyl ester of MGDA, the dibenzyl mono t-butyl ester of MGDA, the di t-butyl estType: GrantFiled: February 20, 2012Date of Patent: January 31, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: James N. Lepage, Cornelia Adriana De Wolf, Johanna Hendrika Bemelaar, Adrianus Maria Reichwein, Axel Carstens, Edwin Rudolf Antony Bang
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Patent number: 9551111Abstract: Compounds according to formula (I) or formula (II) wherein R1 and R2, independently from each other, are chosen among hydrocarbons having from 1 carbon atom up to 30 carbon atoms, with the proviso that at least one of R1 and R2 are chosen among hydrocarbons having at least 8 carbon atoms, and A is a halogen. Use of compounds as hydrophobing agent, such as sizing agent.Type: GrantFiled: December 20, 2012Date of Patent: January 24, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Per Anders Restorp, Arne Olov Roland Andersson, Nils Erik Ronne
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Patent number: 9550191Abstract: The present invention relates to a method for the flotation of silicates from ores in the presence of a collecting agent and an effective amount of a froth modifier/collecting booster comprising at least one of the compounds of general formula (I) or mixtures thereof: wherein X is C1-C3 alkyl; R? is straight or branched hydrocarbyl group containing 8 to 22 carbon atoms; n is integer from 2-4; m can vary from 0 to 2 and R? is X or —(CH2)n-N(X)2, with the proviso that when R? is —(CH2)n-N(X)2, then m is 1.Type: GrantFiled: December 2, 2013Date of Patent: January 24, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Odair Alves De Lima, Kelly Ivone Pina Albino
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Patent number: 9540473Abstract: Polysaccharide alkali swellable rheology modifiers include an emulsion polymer including at least one polysaccharide portion and at least one synthetic portion wherein the at least one synthetic portion is obtained from at least one anionic ethylenically unsaturated monomer, at least one nonionic ethylenically unsaturated monomer or a combination thereof; wherein at least one of the nonionic ethylenically unsaturated monomers is a hydrophobic ethylenically unsaturated monomer, as well as methods of making polysaccharide alkali swellable rheology modifiers.Type: GrantFiled: March 10, 2014Date of Patent: January 10, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Klin Aloysius Rodrigues, Anthony John Adamo, Samuel Anthony Vona, Jr.
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Patent number: 9534146Abstract: The present invention relates to a composition comprising bitumen and an alkoxylated amine, to a method for the production of such a composition, and to a method for paving a surface using such a composition. The present invention also relates to an preformulated additive package to be added to bitumen, comprising an alkoxylated amine and an anti-stripping agent.Type: GrantFiled: June 21, 2012Date of Patent: January 3, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Mark Smith, Daniel Hagberg