Patents Assigned to Akzo Nobel N.V.
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Patent number: 9723841Abstract: The present invention generally relates to herbicidal compositions, and more particularly, herbicidal compositions containing glyphosate or a salt thereof and a surfactant comprising at least one mono and/or diglyceride alkoxylate.Type: GrantFiled: March 11, 2010Date of Patent: August 8, 2017Assignee: AKZO NOBEL N.V.Inventors: Shawn Zhu, Norman R. Pallas
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Patent number: 9661845Abstract: Gel prevention agents and methods for use with agricultural products include certain alkylamidoamines and their quaternary ammonium counterparts that, when blended with products containing alkoxylated surfactants, the alkylamidoamines and their quaternary counterparts reduce the gel formation tendency of such products.Type: GrantFiled: September 8, 2014Date of Patent: May 30, 2017Assignee: AKZO NOBEL N.V.Inventor: Shawn Zhu
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Patent number: 9663740Abstract: 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 imides for use with such fuel oil compositions, and to methods for their manufacture.Type: GrantFiled: March 18, 2013Date of Patent: May 30, 2017Assignee: AKZO NOBEL N.V.Inventors: Stephen L. Mead, Rodney Lee Cravey, Mohammad Abdur Rahman
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Patent number: 9657441Abstract: 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: GrantFiled: August 21, 2014Date of Patent: May 23, 2017Assignee: Akzo Nobel N.V.Inventors: Erik Sanne, Rune Kjell Andersson, Johan Nyander
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Patent number: 9562327Abstract: The present invention relates to a process for producing paper which comprises: (i) providing an aqueous suspension comprising cellulosic fibers, (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: GrantFiled: July 10, 2014Date of Patent: February 7, 2017Assignee: Akzo Nobel N.V.Inventors: Fredrik Solhage, Joakim Carlen, Birgitta Johansson
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Patent number: 9523014Abstract: The invention relates to a process for grinding cellulose ether comprising the steps of: a) grinding a cellulose ether comprising 20 to 90 wt % of water, based on the total weight of cellulose ether and water, and a cationic surfactant in a mill; and b) optionally drying the mixture while grinding, prior to or following the step of grinding.Type: GrantFiled: May 9, 2006Date of Patent: December 20, 2016Assignee: AKZO NOBEL N.V.Inventors: Lars Erik Berglund, Birgit Tora Gunvor Karlsson
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Patent number: 9487917Abstract: The invention relates to a sol containing silica-based particles having an axial ratio of at least about 10 and specific surface area of at least about 600 m2/g. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and S-value up to about 25. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and a specific surface area of at least about 400 m2/g, wherein the silica-based particles are surface-modified. The invention further relates to a sol containing silica-based particles having a viscosity of at least 50 cP and silica content of at least about 3% by weight, wherein the silica-based particles have a specific surface area of at least about 400 m2/g.Type: GrantFiled: September 24, 2014Date of Patent: November 8, 2016Assignee: AKZO NOBEL N.V.Inventors: Michael Persson, Freddie Hansson, Annika Viola Pal, Lars Lindahl, Joakim Carlén
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Patent number: 9426997Abstract: The present invention generally relates to a glyphosate formulation with enhanced viscosity, said formulation containing a thickening composition comprising at least one nitrogen-containing surfactant.Type: GrantFiled: August 17, 2009Date of Patent: August 30, 2016Assignee: AKZO NOBEL N.V.Inventor: Shawn Zhu
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Patent number: 9381450Abstract: 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: GrantFiled: December 14, 2009Date of Patent: July 5, 2016Assignee: AKZO NOBEL N.V.Inventors: Adrian Lang, Mahnaz Company
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Patent number: 9365460Abstract: The invention relates to a method of producing a substantially aqueous pigment dispersion substantially free from an organic binder comprising mixing at least one water-soluble or water-dispersible silane compound and colloidal silica particles to form silanized colloidal silica particles in an aqueous dispersion whereby said at least one silane compound is mixed with colloidal silica particles in a weight ratio of silane to silica of from about 0.2 to about 1.5, mixing said silanized colloidal silica particles with an organic and/or inorganic pigment, wherein the weight ratio of silica to pigment is from about 0.001 to about 0.8 to form said substantially aqueous pigment dispersion. The invention also relates to an aqueous pigment dispersion obtained from the method defined herein.Type: GrantFiled: November 7, 2007Date of Patent: June 14, 2016Assignee: Akzo Nobel N.V.Inventors: Peter Greenwood, Hans Lagnemo
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Patent number: 9353005Abstract: 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: GrantFiled: February 18, 2014Date of Patent: May 31, 2016Assignee: AKZO NOBEL N.V.Inventors: Thomas Aberle, Adrian Keller
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Patent number: 9340422Abstract: 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: GrantFiled: June 11, 2010Date of Patent: May 17, 2016Assignee: AKZO NOBEL N.V.Inventors: Kalle Hans Thomas Pelin, Nils Torgny Björkman
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Patent number: 9321873Abstract: A personal care composition includes a hybrid copolymer including at least one ethylenically unsaturated monomer and a naturally derived hydroxyl containing chain transfer agent as an end group, a hybrid synthetic copolymer including one or more synthetic polymers derived from the at least one ethylenically unsaturated monomer with at least one initiator fragment as an end group and an effective amount of a cosmetic or personal care additive.Type: GrantFiled: July 30, 2010Date of Patent: April 26, 2016Assignee: AKZO NOBEL N.V.Inventors: John S. Thomaides, Klin A. Rodrigues, Samuel A. Vona, Jr., Gary T. Martino, Anthony J. Adamo
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Patent number: 9308520Abstract: An organo-modified silica based material to be used for making a stationary phase for liquid chromatography comprising a part which is unmodified silica, and a part which is silica comprising organic groups bonded to the silica. A method for preparing an organo-modified silica based material comprising mixing in an aqueous medium a silica based material and an organosilane compound, and reacting the mixture. A stationary phase separation material prepared by functionalizing the organo-modified silica based material is also disclosed.Type: GrantFiled: December 13, 2006Date of Patent: April 12, 2016Assignee: AKZO NOBEL N.V.Inventor: Johan Ekeroth
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Patent number: 9296902Abstract: The present invention pertains to a process for preparing a modified inorganic oxygen-containing particulate material comprising the steps of: a) preparing a mixture of an aqueous suspension of inorganic oxygen-containing particulate material and an alkoxylated alcohol according to the formula (I) wherein R1 is a C1-C8 alkyl, C4-C8 cycloalkyl or phenyl, R2 is hydrogen or methyl, and n is an integer from 1 to 5; b) optionally adding a first resin and/or a first resin precursor; c) adding one or more coupling agents to the mixture; d) optionally adding a second resin and/or a second resin precursor to the resulting mixture; and wherein optionally water is removed at least partially from the mixture before or during step b), c) or d), or after step d); and optionally converting the first resin precursor into the first resin before, during or after step c) and/or the second resin precursor into the second resin after step d).Type: GrantFiled: June 16, 2006Date of Patent: March 29, 2016Assignee: AKZO NOBEL N.V.Inventors: Elwin Schomaker, Rudolf Anthonius Maria Venderbosch
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Publication number: 20150307631Abstract: The invention relates to a dry or slurry process to prepare phosphate-crosslinked cellulose ethers from a cellulose starting material comprising the steps of adding an alkalizing agent to the cellulose starting material to achieve mercerization, adding an ethehfying agent to the reaction mixture to achieve etherification of the cellulose, and adding a crosslinking agent to the reaction mixture to achieve crosslinking of the cellulose, wherein at least part of the alkalizing agent is added to the cellulose starting material before the etherification and/or crosslinking reactions take place to obtain alkalized cellulose; the crosslinking agent and the etherifying agent are added one after the other in random order or simultaneously; the crosslinking agent is an alkali metal thmetaphosphate; and the crosslinking and etherification steps are performed at an elevated temperature.Type: ApplicationFiled: July 9, 2015Publication date: October 29, 2015Applicant: AKZO NOBEL N.V.Inventor: Paulus Pieter De Wit
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Patent number: 9149664Abstract: Sunscreen compositions comprising one or more sunscreen agents (inorganic and combinations of inorganic and organic), one or more film forming polymers (synthetic or naturally derived), and heat treated xanthan gum. The sunscreen composition provides higher pre- and post-immersion SPF values, as well as a means for reducing the amount of sunscreen agents in a formulation without forfeiting efficacy.Type: GrantFiled: December 12, 2007Date of Patent: October 6, 2015Assignee: Akzo Nobel N.V.Inventors: Jennifer Davis, Doreen Petersen
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Patent number: 9139958Abstract: The present invention relates to a process for producing paper which comprises: (i) providing an aqueous suspension comprising cellulosic fibers, (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: GrantFiled: October 11, 2013Date of Patent: September 22, 2015Assignee: AKZO NOBEL N.V.Inventors: Johan Nyander, Fredrik Solhage
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Patent number: 9115217Abstract: The invention relates to a dry or slurry process to prepare phosphate-crosslinked cellulose ethers from a cellulose starting material comprising the steps of adding an alkalizing agent to the cellulose starting material to achieve mercerization, adding an etherifying agent to the reaction mixture to achieve etherification of the cellulose, and adding a crosslinking agent to the reaction mixture to achieve crosslinking of the cellulose, wherein at least part of the alkalizing agent is added to the cellulose starting material before the etherification and/or crosslinking reactions take place to obtain alkalized cellulose; the crosslinking agent and the etherifying agent are added one after the other in random order or simultaneously; the crosslinking agent is an alkali metal thmetaphosphate; and the crosslinking and etherification steps are performed at an elevated temperature.Type: GrantFiled: April 10, 2009Date of Patent: August 25, 2015Assignee: AKZO NOBEL N.V.Inventor: Paulus Pieter De Wit
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Patent number: RE45940Abstract: Polymerization process comprising the steps of: (a) reacting an aqueous suspension comprising initiator, vinyl chloride, and optionally one or more co-monomers in a continuous stirred tank reactor; and (b) further reacting the resulting suspension in at least one second reactor; wherein the conversion level of vinyl chloride in the continuous stirred tank reactor of step (a) is from 10 to 60 wt %.Type: GrantFiled: August 6, 2014Date of Patent: March 22, 2016Assignee: AKZO NOBEL N.V.Inventors: Carolina Anna Maria Christina Dirix, Johannes Jacobus Theodorus De Jong, Lambertus Meulenbrugge, Koen Antoon Kornelis Vanduffel