Additive Contains Organic Portion Patents (Class 423/268)
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Patent number: 11185841Abstract: The present invention concerns a powdery slaked lime composition having an Alpine fluidity greater than 50% and including a first fraction of particles having a size less than 32 ?m and a second fraction of particles with the size greater than 32 ?m, the second fraction being less than 10% by weight, compared to the total weight of the composition. The invention also relates to a method for producing same.Type: GrantFiled: June 23, 2017Date of Patent: November 30, 2021Assignee: S. A. Lhoist Recherche et DeveloppementInventor: Marion Lorgouilloux
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Patent number: 11135559Abstract: The present application relates to a closed container containing ammonium nitrate (AN) particles in an amount of 91 to 99.75 weight % and desiccant in an amount of 0.25 and 9 weight %, wherein the AN particles have a water content of between 0 and 0.7 weight %, and the desiccant particles comprise between 50 and 95 weight % of AN and between 5 and 50 weight % of magnesium nitrate dispersed in the AN. The application furthermore relates to a method for producing of ammonium nitrate particles that are stored in a closed container and having improved anti-caking properties.Type: GrantFiled: June 22, 2018Date of Patent: October 5, 2021Assignee: YARA INIERNATIONAL ASAInventor: Francois Ledoux
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Patent number: 10550356Abstract: Provided herein are solid textile treating compositions; compositions containing colorants stabilized with one or more colorant stabilizers; compositions containing colorants that do not need to be stabilized by one or more colorant stabilizers; solid wash cycle conditioning agents; liquid textile treating compositions; cleaning agent compositions containing these; methods of making these; methods of treating textiles with these; textiles treated by these; containers containing the compositions; and methods of visually designating when a composition has reached or passed its pull date.Type: GrantFiled: September 6, 2012Date of Patent: February 4, 2020Assignee: Henkel IP & Holding GmbHInventors: David VanBlarcom, Makarand S. Shevade, Alla Tartakovsky, Ewa U. Sidwa
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Patent number: 10365167Abstract: A fiber grating temperature sensor includes a hollow tube, an optical fiber disposed in the hollow tube such that a gap exists between at least a portion of an internal surface of the hollow tube and an exterior surface of the optical fiber. The optical fiber includes at least one Bragg grating. A lubricant is disposed within the hollow tube, between the exterior surface of the fiber and the interior surface of the hollow tube.Type: GrantFiled: November 4, 2014Date of Patent: July 30, 2019Assignee: United Technologies CorporationInventor: Bruce Hockaday
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Patent number: 9653238Abstract: An exemplary embedded pole part with an isolating housing, which accommodates a vacuum interrupter as well as electric terminals by an injected embedding material, wherein the injected embedding material is filled with silica based on silicon dioxide as filler material, and the silica is silica fume, which includes amorphous, non-porous spheres of silicon dioxide and agglomerates thereof.Type: GrantFiled: April 16, 2015Date of Patent: May 16, 2017Assignee: ABB Schweiz AGInventor: Dietmar Gentsch
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Patent number: 9560870Abstract: A beverage tablet comprising an effervescent system including a base selected from one or more carbonates, bicarbonates, or combinations thereof, where the base is present in an amount of about 5 wt % to about 40 wt % of the tablet; and where the tablet self-disperses in an aqueous liquid in less than about three minutes to produce a beverage.Type: GrantFiled: January 25, 2013Date of Patent: February 7, 2017Assignee: INTERCONTINENTAL GREAT BRANDS LLCInventors: Hayley Schultz, Maria Del Pilar I. Cobos, Paul Leis
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Patent number: 9133065Abstract: A high efficiency magnesium fertilizer and a method for applying the same to an agronomic carrier or directly to soil. The magnesium fertilizer product is a powder comprising two or more forms of magnesium mixed with a suitable formulating agent.Type: GrantFiled: July 15, 2014Date of Patent: September 15, 2015Assignee: COMPASS MINERALS MANITOBA INC.Inventors: Mark Goodwin, Kerry Green
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Publication number: 20140193320Abstract: A process in a resulting product of the process in which a hydrogen storage metal amide is modified by a ball milling process using an additive of TPP. The resulting product provides for a hydrogen storage metal amide having a coating that renders the hydrogen storage metal amide resistant to air, ambient moisture, and liquid water while improving useful hydrogen storage and release kinetics.Type: ApplicationFiled: January 9, 2013Publication date: July 10, 2014Applicant: Savannah River Nuclear Solutions, LLCInventor: Savannah River Nuclear Solutions, LLC
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Publication number: 20130142721Abstract: The invention relates to solutions of Lewis acids selected from the halogen-containing Lewis acids of the elements of groups 12 and 13 from the periodic table of elements, or mixtures of said Lewis acids, in aprotic, asymmetrically substituted ethers or in solvent mixtures that contain asymmetrically substituted ethers and hydrocarbons, to the production of the solutions according to the invention, and to the use in inorganic, organic and organometallic syntheses.Type: ApplicationFiled: March 14, 2011Publication date: June 6, 2013Applicant: Chemetall GmbHInventors: Ulrich Wietelmann, Alexander Murso, Sebastian Lang
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Publication number: 20120129952Abstract: The present invention relates to a sodium chloride composition comprising an iron complex of tartaric acid wherein between 55 and 90% by weight of the tartaric acid is meso-tartaric acid. The present invention furthermore relates to a process to prepare such a sodium chloride composition and to the use of such a sodium chloride composition.Type: ApplicationFiled: May 27, 2010Publication date: May 24, 2012Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Hendrikus Wilhelmus Bakkenes, Roberto Aloysius Gerardus Maria Bergevoet, Johannes Albertus Maria Meijer, Maria Steensma
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Patent number: 7527825Abstract: A method for avoiding the agglomeration of pellets of several kinds of materials when treated at high temperatures, which comprises: covering the pellets with a long term stabilized magnesium hydroxide suspension which can be stored for at least three months without substantial agitation and without experiencing substantial settlement and solid hard substrate formation, comprising a solid content of about 51% to 61%; a water content of about 39% to 49%; a viscosity of about 500 to 1,500 cp.; an average particle size of about 1 to 2.5 microns; a Mg(OH).sub.2 content of about 50% to 60%; an equivalent magnesium oxide content of 34% to 42%; including a compound that improves the adhesion of the suspension to the pellets at a concentration of at least 30% in an amount of 0.Type: GrantFiled: April 8, 2005Date of Patent: May 5, 2009Assignee: Servicios Industriales Penoles S.A. De C.V.Inventors: Cesar-Emillio Zertuche-Rodriguez, Ricardo Benavides-PĂ©rez, Jose-Gertrudi Bocanegra-Rojas
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Publication number: 20080182107Abstract: A carbon black pellet comprising an inner core of de-aerated carbon black and an outer surrounding shell of an encapsulating material, the shell of the encapsulating material having an average thickness of from about 1% to about 10% of the average thickness of the pellet.Type: ApplicationFiled: January 31, 2007Publication date: July 31, 2008Inventor: Chang H. Lee
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Patent number: 6949236Abstract: Addition of an aminosulfonate product to an inorganic nitrogen-containing salt provides a composition of matter with improved properties. In particular, 2-acrylamido-2-methylpropanesulfonic acid and its derivatives can be added to ammonium nitrate to provide improved prills.Type: GrantFiled: November 6, 2001Date of Patent: September 27, 2005Assignee: The Lubrizol CorporationInventors: Kastrui Lal, Alvin E. Haas, Ricardo M. Collins, Jeffrey M. Carey
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Patent number: 6800263Abstract: The invention relates to specific non-caking salt (NaCl) compositions with a pH of 1-10 comprising at least one metal (iron, titanium and/or chromium) complex of a hydroxypolycarboxylic acid, a process to make such compositions, as well as the use of such compositions in table salt, road salt, or electrolysis salt. Preferred compositions comprise an iron complex of (meso)tartaric acid for use in membrane electrolysis operations.Type: GrantFiled: December 11, 2001Date of Patent: October 5, 2004Assignee: Akzo Nobel N.V.Inventor: Herman Frans Boon
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Publication number: 20040048742Abstract: Exemplary carbon dioxide absorbent compositions of the invention incorporate calcium hydroxide, water, and a phosphonic acid or salt thereof. The composition is made into a paste and formed into particles that are conveniently and efficiently processable. When hardened, the particles have excellent carbon dioxide absorbent performance, crush resistance, and pore structure.Type: ApplicationFiled: September 9, 2002Publication date: March 11, 2004Inventor: David Chin
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Publication number: 20040022711Abstract: Addition of an aminosulfonate product to an inorganic nitrogen-containing salt provides a composition of matter with improved properties. In particular, 2-acrylamido-2-methylpropanesulfonic acid and its derivatives can be added to ammonium nitrate to provide improved prills.Type: ApplicationFiled: May 14, 2003Publication date: February 5, 2004Inventors: Kastrui Lal, Alvin E Haas, Ricardo M Collins, Jeffrey M Carey
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Publication number: 20030143144Abstract: The present invention describes an additive which controls stickies formation and removes anionic trash from recycled old corrugated container furnish, old newsprint furnish, deinked pulp furnish, old magazine grade furnish, coated broke furnish, or thermomechanical pulp furnish. The present invention treats talc with either a tertiary or quaternary amine. The treated talc is then added to the pulp slurry and removes stickies by binding the stickies to the talc and neutralizes the anionic trash that may be present.Type: ApplicationFiled: September 5, 2002Publication date: July 31, 2003Applicant: Luzenac America, Inc.Inventors: Shripal Sharma, Jorge Yordan, Vicente Lasmarias, Jordan Kortmeyer, Alexis Layne, Jason Reynolds
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Publication number: 20020041843Abstract: The invention relates to a process for the production, by fluid-bed spray granulation, of granular sodium percarbonate having a low TAM value. According to the invention, in the fluid-bed spray granulation, an Mg compound in a quantity of 50 to 2,000 ppm, in particular 100 to 1,000 ppm, or/and a complexing agent from among the hydroxycarboxylic acids, aminocarboxylic acids, aminophosphonic acids and phosphonocarboxylic acids, hydroxyphosphonic acids and their alkali metal salts, ammonium salts or Mg salts, in a quantity of 50 to 2,000 ppm, in particular 200 to 1,000 ppm, are added as stabilisers to the soda solution and/or H2O2 solution. Preferably a combination of an Mg compound in a quantity of 100 to 1,000 ppm Mg2+ and waterglass in a quantity of 0.1 to 1 wt.%, in particular 0.1 to 0.5 wt.%, is used, and in this case granules having a TAM value of about or below 6 &mgr;W/g and simultaneously a short dissolving time, are obtainable.Type: ApplicationFiled: September 25, 2001Publication date: April 11, 2002Inventors: Harald Jakob, Birgit Bertsch-Frank
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Patent number: 6365120Abstract: Solid inorganic particulate salts having increased hardness are produced by incorporating a novel additive composition comprised of ammonium sulfate and a naphthalene sulfonate compound.Type: GrantFiled: February 28, 2000Date of Patent: April 2, 2002Assignee: Lobeco Products, Inc.Inventors: Victor Martin Granquist, Robert Paul Kern, Jr.
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Patent number: 5698005Abstract: The invention relates to a composition, which is simultaneously anticlumping and water-repellent, for salts, simple and complex fertilizers. This composition contains:on the one hand, an anticlumping product chosen from fatty amines, amine salts of phosphoric esters, amine salts of alkylarylsulphonic acids and mixtures thereof, andon the other hand, an anticlumping substance capable of imparting water-repellent properties and consisting of the product of the reaction of an alcohol or an amine with a carboxylic acid or anhydride bearing a hydrocarbon group having from 20 to 500 carbon atoms,as well as a formulation agent.Type: GrantFiled: September 25, 1995Date of Patent: December 16, 1997Assignee: CFPI IndustriesInventors: Joseph Schapira, Jean-Claude Cheminaud, Pascal Petitbon, Dominique Imbert
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Patent number: 5630992Abstract: A composition comprising ammonium thiocyanate and an amount of an anti-caking agent selected from amines and amine salts, which is effective to reduce the caking of the ammonium thiocyanate, is disclosed. Also disclosed is a method for reducing the caking of a composition which contains ammonium thiocyanate which comprises the step of incorporating in said composition, 0.0001-1.0% by weight, based on the weight of the ammonium thiocyanate, of an anti-caking agent selected from amines and amine salts and the use of a compound selected from amines and amine salts, as an anti-caking agent for ammonium thiocyanate. It has surprisingly been found that minor amounts of these anti-caking agents provide an excellent reduction in the caking of ammonium thiocyanate compositions.Type: GrantFiled: August 25, 1995Date of Patent: May 20, 1997Assignee: Akzo Nobel NVInventors: Antonius E. D. M. van der der Heijden, Gerda M. van Rosmalen, Marielle G. M. van der Horst
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Patent number: 5468460Abstract: More reliable removal of sulfur oxides (SO.sub.x) from combustion effluents by in furnace injection is achieved by stabilizing slurries of calcium carbonate (limestone), calcium oxide (lime) and calcium hydroxide (hydrated lime) for extended periods of time and during in-furnace injection. The slurries are stabilized by a stabilization system comprising a generally hydrophobic surfactant having an HLB of less than about 8 and a more hydrophilic surfactant having an HLB of at least about 8, wherein the HLB values of the hydrophobic and the hydrophilic surfactants differ by at least about 3.Type: GrantFiled: January 10, 1994Date of Patent: November 21, 1995Assignee: Nalco Fuel TechInventor: M. Linda Lin
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Patent number: 5416141Abstract: Halogen-containing synthetic resins can be stabilized with calcium and/or zinc soaps. Co-stabilizers are necessary for enhancing their stabilizing effect. The invention relates to special cationic layered hydrotalcite compounds having a specific BET surface of at least 50 m.sup.2 /g which are modified with polyols, epoxidized esters, full and partial esters of polyols and/or phosphites, to a process for their production and to their use as co-stabilizers for halogen-containing synthetic resins stabilized with calcium and/or zinc salts.Type: GrantFiled: January 24, 1994Date of Patent: May 16, 1995Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Helmut Endres, Frido Loeffelholz, Peter Wedl, Kurt Worschech, Angela Hansen, Guenther Geismar
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Patent number: 5277886Abstract: The addition of a nucleating or coalescing agent (e.g., urea) to liquid ammonia reduces the size and persistence of a deadly, fog-like cloud of ammonia droplets that tend to form when liquid ammonia is accidentally released to the atmosphere. In addition, high purity ammonia is obtained by evaporating ammonia from the ammonia- and nucleating agent-containing composition.Type: GrantFiled: March 31, 1992Date of Patent: January 11, 1994Assignee: Union Oil Company of CaliforniaInventor: Donald C. Young
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Patent number: 5270370Abstract: Evolution of phosphine from red phosphorus is reduced by means of acyclic, aliphatic compounds having at least one carbon-to-carbon double bond, in the alpha-position relative to an electron-withdrawing group. A preferred example of such a compound is trans-cinnamaldehyde.Type: GrantFiled: September 21, 1992Date of Patent: December 14, 1993Assignee: Albright & Wilson LimitedInventors: Colin A. Chilles, Tom Dutton, Mohsen Zakikihani, Simon J. Oakley
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Patent number: 5258133Abstract: A stable coated percarbonate bleach product is described wherein sodium percarbonate particles are coated with at least 1% by weight of an alkalimetal citrate wherein the product is formed by spraying a solution of the alkalimetal citrate onto the sodium percarbonate particles.Type: GrantFiled: December 7, 1992Date of Patent: November 2, 1993Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventor: Andrew P. Chapple
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Patent number: 5232678Abstract: The calcium carbonate is prepared by:(a) slaking quicklime in an aqueous medium;(b) carbonating and neutralizing the suspension of slaked lime formed in step (a) using a gas comprising carbon dioxide; and(c) separating the precipitated calcium carbonate formed in step (b) from the aqueous medium in which it is suspended. There is added 0.01% to 15% by weight, based on the weight of dry calcium oxide, of a reagent having one or more active hydrogen atoms (or a salt thereof), to the aqueous medium in which the quicklime is slaked in step (a).The reagent is selected from the group consisting of triethanolamine, mannitol, diethanolamine, bicine, morpholine, tri-isopropanolamine, N-ethyl diethanolamine, N,N-diethylethanolamine and sodium boroheptonate.Type: GrantFiled: July 26, 1991Date of Patent: August 3, 1993Assignee: ECC International LimitedInventors: Ian S. Bleakley, Thomas R. Jones
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Patent number: 5230822Abstract: Solid core particles encapsulated in a single coat of paraffin wax, the wax having a melting point of about 40.degree. to about 50.degree. C. and a solids content of from 100 to about 35% at 40.degree. C. and from 0 to about 15% at 50.degree. C. The paraffin coat may comprise 20 to 90% by weight of the particle and may be from 100 to 1,500 microns thick. The coat prolongs the time in which particles encapsulated therewith may remain active in aqueous environments.The encapsulated particle is made by spraying molten wax onto the particles in a fluidized bed. Liquid or powder cleaning compositions, particularly automatic dishwashing liquid detergents, may incorporate 0.01 to 20% by weight of the composition of the coated wax-encapsulated particles.Type: GrantFiled: April 24, 1991Date of Patent: July 27, 1993Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Ahmed A. Kamel, David J. Lang, Paul A. Hanna, Robert Gabriel, Richard Theiler
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Patent number: 5200236Abstract: Solid core particles encapsulated in a single coat of paraffin wax, the wax having a melting point of about 40.degree. to about 50.degree. C. and a solids content of from 100 to about 35% at 40.degree. C. and from 0 to about 15% at 50.degree. C. The paraffin coat may comprise 20 to 90% by weight of the particle and may be from 100 to 1,500 microns thick. The coat prolongs the time in which particles encapsulated therewith may remain active in aqueous environments.The encapsulated particle is made by spraying molten wax onto the particles in a fluidized bed. Liquid or powder cleaning compositions, particularly automatic dishwashing liquid detergents, may incorporate 0.01 to 20% by weight of the composition of the coated wax-encapsulated particles.Type: GrantFiled: April 24, 1991Date of Patent: April 6, 1993Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: David J. Lang, Ahmed A. Kamel, Paul A. Hanna, Robert Gabriel, Richard Theiler
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Patent number: 5183648Abstract: The invention concerns a process for preparing magnesia having reduced hydration tendency, wherein magnesia particles are treated with a solution of an inorganic acid, an organic acid an/or salts thereof, as well as hydration resistant magnesia thus obtained, a dry mixture for preparing magnesia based castables and magnesia based castables containing magnesia thus obtained.Type: GrantFiled: March 8, 1991Date of Patent: February 2, 1993Assignee: Shell Research LimitedInventor: Anthony J. Wolfert
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Patent number: 4923689Abstract: Disclosed herein is an aluminum nitride powder having the improved water-resistance, which is obtained by treating the aluminum nitride powder with an inorganic or organic phosphoric acid compound followed by heating at about 150.degree. to 800.degree. C. when the organic phosphoric acid compound is used.Type: GrantFiled: July 18, 1989Date of Patent: May 8, 1990Assignee: Toyo Aluminium Kabushiki KaishaInventors: Masatoshi Uenishi, Yoshiki Hashizume, Takamasa Yokote
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Patent number: 4853144Abstract: A composition of matter in particulate, crystalline form. The composition comprises a hydrate-forming phosphate selected from the group consisting of sodium tripolyphosphate, sodium pyrophosphate and trisodium phosphate, between about 0.1% by weight and about 23% by weight added water in the form of water of hydration said water containing in solution sufficient surfactant to provide the composition from about 0.20 ppm and about 125 ppm of a surfactant. Methods for preparing such compositions are also disclosed.Type: GrantFiled: December 19, 1988Date of Patent: August 1, 1989Inventor: Louis A. Highfill
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Patent number: 4849198Abstract: Particulate, active-oxygen compounds, especially sodium percarbonate, tend to cake during storage, which makes it more difficult to handle them. The invention reduces this caking tendency while the active-oxygen content remains essentially unchanged. The method of achieving this comprises bringing the active-oxygen compound in contact with such an amount of an aqueous solution containing one or more phosphonic acid compounds capable of chelate complex formation that the weight ratio of active-oxygen compound to phosphonic acid compound is 100:0.1 to 100:10, preferably 100:1 to 100:3, and subsequent drying.Sodium percarbonate is used in particular as active-oxygen compound and 1-hydroxyethane-1,1-diphosphonic acid as a 3 to 30% by weight aqueous solution is used as phosphonic acid compound. Sodium percarbonate wet salt is preferably washed with this solution, freed of excess solution and dried. Percarbonate treated in this manner hardly tends to cake at all and exhibits a greater active-oxygen stability.Type: GrantFiled: June 7, 1988Date of Patent: July 18, 1989Assignee: Degussa AktiengesellschaftInventor: Alexander Ruhs
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Patent number: 4834957Abstract: An aqueous magnesium oxide suspension is disclosed which comprises from about 15 to about 50 percent by weight MgO, based on the combined weight of water, MgO, suspension aid, and anti-hydration agent. Suspension aids such as Xzanthan gum and guar gum are utilized in the presence of a lignin sulfonate anti-hydration agents to provide a highly stable concentrated suspension, useful as a base for fertilizers, animal feeds, etc.Type: GrantFiled: April 21, 1987Date of Patent: May 30, 1989Assignee: Martin Marietta CorporationInventor: Richard H. Van de Walle
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Patent number: 4804484Abstract: Solid sodium bromide and aqueous sodium bromide solutions incorporate sodium tartrate and one or more amides of nitrolotriacetic acid in order to inhibit floc formation in aqueous sodium bromide solutions in the pH range 6-12 and in order to insure that the solid sodium bromide is free flowing.Type: GrantFiled: July 9, 1987Date of Patent: February 14, 1989Assignee: Great Lakes Chemical CorporationInventor: Ahmad Dadgar
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Patent number: 4803058Abstract: A composition of matter in particulate, crystalline form. The composition comprises a hydrate-forming phosphate selected from the group consisting of sodium tripolyphosphate, sodium pyrophosphate and trisodium phosphate, between about 0.1% by weight and about 23% by weight added water in the form of water of hydration said water containing in solution sufficient surfactant to provide the composition from about 0.20 ppm and about 125 ppm of a surfactant. Methods for preparing such compositions are also disclosed.Type: GrantFiled: May 12, 1988Date of Patent: February 7, 1989Assignee: Monsanto CompanyInventor: Louis A. Highfill
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Patent number: 4717555Abstract: An aqueous liquid anticaking and antidusting composition is disclosed which comprises from 20 to 30 parts of a sodium naphthalene sulfonate, from 17 to 28 parts of an ammonium naphthalene sulfonate, and from 30 to 80 parts of water. In preferred practice, the compositions also include an alkene sulfonate containing from 6 to 26 carbon atoms as the sodium or potassium salt in an amount of from 1 to 5 parts. The compositions are neutralized with an acid, like sulfuric acid, to a pH of from about 5 to about 7.Type: GrantFiled: January 29, 1986Date of Patent: January 5, 1988Assignee: DeSoto, Inc.Inventors: Anthony W. Newman, Michael L. Bishop
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Patent number: 4652435Abstract: A composition comprising a ferrous compound and as a stabilizer, at least one compound selected from the group consisting of (A) erythorbic acid compounds, (B) hydroxycarboxylic acid compounds and (c) oxocarboxylic acid compounds.Type: GrantFiled: December 10, 1985Date of Patent: March 24, 1987Assignee: Nippon Zeon Co., Ltd.Inventors: Tadao Natsuume, Tsunehisa Ueda
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Patent number: 4492679Abstract: A cyanuric chloride of improved shelf life is described, which contains 0.1 to 10% of dicyandiamide by weight. The cyanuric chloride of the invention shows both a decidedly lesser tendency to cake up and an improved resistance to hydrolysis in the presence of moisture.Type: GrantFiled: July 22, 1983Date of Patent: January 8, 1985Assignee: SKW Trostberg AktiengesellschaftInventors: Horst Michaud, Joachim von Seyerl
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Patent number: 4451383Abstract: A liquid melt becomes converted to crystalline form at a particular temperature either spontaneously or when artificially nucleated. The liquid releases heat at crystallization. If the liquid is in a supercooled state when it begins to crystallize, its temperature will rise from the particular temperature at which it is nucleated.Another liquid material is mixed with the liquid to be crystallized. The liquid additive has properties of forming a metastable solid together with the crystallizing material. When the liquid additive exsolves, the crystalline aggregate is weakened and is easily decomposed into fragments of small size. The liquid additive materials may include monohydric alcohols, diols and triols. The liquid additive material may be included in the liquid to be crystallized, in small amounts, amounts to two percent (2%) to five percent (5%) being typical.Type: GrantFiled: September 13, 1979Date of Patent: May 29, 1984Assignee: American Hospital Supply CorporationInventor: Gustaf O. Arrhenius
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Patent number: 4402862Abstract: The invention relates to the stabilization against water uptake of hygroscopic salts useful as catalysts by formation of anhydrous adducts with particulate support materials in order to facilitate manipulation and storage. The adducts comprise a particulate support material and a hygroscopic salt of a species of formula R.sup.1 R.sup.2 R.sup.3 R.sup.4 N, R.sup.1 R.sup.2 R.sup.3 R.sup.4 P, R.sup.1 R.sup.2 R.sup.3 R.sup.4 As, wherein R.sup.1 R.sup.4 which may be identical or different represent hydrogen or alkyl or aryl groups, or of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Cu.Type: GrantFiled: May 20, 1982Date of Patent: September 6, 1983Assignee: National Research Development CorporationInventor: James H. Clark
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Patent number: 4360571Abstract: Improved performance of rare earth oxyhalide phosphors in x-ray image intensifying screens may be realized by admixing a small but effective amount of certain fatty acids and fatty acid derivative with the phosphor prior to the preparation of the screen. Alternately, the phosphor powder can be washed with a liquid dispersion or solution of said additives as an equivalent means of providing improved moisture resistance as well as preserving the original emission brightness of the adhesively bonded material when used in x-ray screens.Type: GrantFiled: October 16, 1978Date of Patent: November 23, 1982Assignee: General Electric CompanyInventor: Jacob G. Rabatin
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Patent number: 4356020Abstract: This invention relates to fertilizer compositions containing alkylene oxide anticaking agents. More particularly, this invention relates to a method of decreasing the caking during storage in a hygroscopic salt or fertilizer which normally cakes on storage, which comprises uniformly admixing with said hygroscopic salt or fertilizer an effective amount of an anticaking agent consisting of one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of ethylene oxide and/or propylene oxide onto 1 mol of a .beta.-hydroxyalkyl-diethanolamine of the formula ##STR1## wherein R.sup.1 is an alkyl of from 1 to 18 carbon atoms and R.sup.2 is hydrogen or alkyl of from 1 to 16 carbon atoms, the sum of the carbon atoms in R.sup.1 and R.sup.2 being from 8 to 18.Type: GrantFiled: November 20, 1981Date of Patent: October 26, 1982Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Margarete Grunert, Holger Tesmann
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Patent number: 4331556Abstract: A liquid melt becomes converted to crystalline form at a particular temperature either spontaneously or when artificially nucleated. The liquid releases heat at crystallization. If the liquid is in a supercooled state when it begins to crystallize, its temperature will rise from the particular temperature at which it is nucleated.Another liquid material is mixed with the liquid to be crystallized. The liquid additive has properties of forming a metastable solid together with the crystallizing material. When the liquid additive exsolves, the crystalline aggregate is weakened and is easily decomposed into fragments of small size. The liquid additive materials may include monohydric alcohols, diols and triols. The liquid additive material may be included in the liquid to be crystallized, in small amounts, amounts to two percent (2%) to five percent (5%) being typical.Type: GrantFiled: January 3, 1978Date of Patent: May 25, 1982Assignee: Kay Laboratories, Inc.Inventor: Gustaf O. Arrhenius
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Patent number: 4321152Abstract: Significant enhancement of titanium dioxide recovery from a titaniferous ore is achieved by improving the efficiency of the comminution of the ore with the use of polyols of the formula:R--C--R'OH).sub.3wherein R is alkyl (C.sub.1 -C.sub.4), or hydroxyalkyl (C.sub.1 -C.sub.4) containing up to 3 hydroxy groups, and wherein R' is alkylene (C.sub.1 -C.sub.4).Type: GrantFiled: October 21, 1980Date of Patent: March 23, 1982Assignee: American Cyanamid CompanyInventors: Gerard M. Sheehan, Donald E. Knapp
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Patent number: 4321243Abstract: Silica fume, the by-product from the manufacture of silicon and ferrosilicon alloys, is dispersed in water and the aqueous dispersion is stabilized to retain its fluidity and redispersibility by treatment with an acid or with a chelating agent.Type: GrantFiled: August 5, 1980Date of Patent: March 23, 1982Inventors: Charles E. Cornwell, Mark Plunguian
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Patent number: 4298585Abstract: In a process of making sodium perborate, crystallization is performed in the presence of an organic polymer with a high potential content of free carboxylic groups derived from maleic anhydride, selected from the copolymers of maleic anhydride with an organic compound with an ethylene bond. The process is applicable to obtaining sodium perborate crystals of high apparent density of good resistance to abrasion and of limited, relatively high granulometric size.Type: GrantFiled: April 16, 1980Date of Patent: November 3, 1981Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Jean Malafosse, Andre Girou, Herve Olivier, Michel Dupont
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Patent number: 4265854Abstract: A process inhibiting the coalescence of flowable phosphorus pentachloride in a closed container. To this end, the invention provides for a readily volatizable organic liquid boiling within the range about 20.degree. to 200.degree. C. and being inert with respect to phosphorus pentachloride to be admitted to the container prior to, during or after the introduction of phosphorus pentachloride thereinto, and for the container to be then hermetically sealed, the liquid being used in a proportion of about 1 to 15 weight %, based on the quantity of phosphorus pentachloride.Type: GrantFiled: October 22, 1979Date of Patent: May 5, 1981Assignee: Hoechst AktiengesellschaftInventors: Joachim Wortmann, Gerhard Rieb, Franz-Josef Dany, Joachim Kandler
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Patent number: 4252735Abstract: The specification discloses a method of stabilizing aqueous alkali metal aluminate solutions against precipitation of solids and/or the development of a cloudy appearance over a period of standing. The method comprises dissolving hydrated alumina and an alkali metal hydroxide in an aqueous medium in an amount sufficient to produce an aqueous solution containing at least 30% by weight of dissolved solids. The dissolved solids are then reacted in the presence of at least 0.02% by weight of an oligomeric or monomeric surfactant containing groups capable of bonding chemically to the aluminate thus produced. The resulting aluminate solution is found to be stable for a period of several months at least, and thus has a long shelf life making it attractive for use in a variety of industries.Type: GrantFiled: October 13, 1978Date of Patent: February 24, 1981Assignee: Handy Chemicals LimitedInventors: William O. Layer, Siddiq A. Khan
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Patent number: 4234552Abstract: Sulphur is stabilized in a form wholly or partially insoluble in carbon disulphide by incorporating therewith a dixanthogen of the formula ##STR1## wherein R and R.sup.1 are each independently an alkyl, cycloalkyl, aralkyl or aryl group and may be substituted by halogen or alkoxy and n is 2 or 4. The insoluble sulphur can for example be plastic sulphur or white sulphur or substantially wholly insoluble sulphur derived therefrom. The sulphur is particularly useful in the vulcanization of rubber.Type: GrantFiled: September 28, 1979Date of Patent: November 18, 1980Assignee: Courtaulds LimitedInventor: Grahame L. Stanley