Patents Assigned to Chemtura Corporation
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Publication number: 20140056838Abstract: The feel of skin and hair and the manageability of hair exposed to recreational water is improved by the addition of select organic polymers, e.g., charged organic polymers such as cationic organic polymers containing multiple charges. In one embodiment, excellent results are achieved when the added organic polymer(s) include polymeric quaternary ammonium compounds such as poly-DADMAC. The cationic organic polymers of the invention do not interfere with the activity of other recreational water treatments such as halogen releasing compounds and do not decompose due to the presence of halogen releasing water sanitizers, generate a detectable odor or impart noticeable color to the recreational water.Type: ApplicationFiled: August 6, 2013Publication date: February 27, 2014Applicant: CHEMTURA CORPORATIONInventors: Curt Sayre, Robin Cantrell
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Patent number: 8648020Abstract: Overbased MgO dispersions with high magnesium content and acceptably low viscosities are prepared without gel formation by heating to 280-360° C. under high pressure in a sealed reactor a mixture of MgO, selected dispersants, low MW carboxylic acids, water and a hydrocarbon solvent having a boiling point below 280° C. No additional solubilizing or dispersing agents, promoters or reactants such as carbon dioxide, amines, alcohols etc are needed to obtain the desired dispersions. Compositions such as lubricating oils and fuels containing the overbased magnesium dispersions as additives are also disclosed.Type: GrantFiled: April 26, 2012Date of Patent: February 11, 2014Assignee: Chemtura CorporationInventors: Qinggao Ma, Mitchel Cohn
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Publication number: 20140027358Abstract: A system for dispensing water treatment compositions into a pool, spa, or other body of water is disclosed, which system provides a visible cue that the water treatment is properly dispersing and also provides a visible cue when the desired amount of water treatment has been dispensed. The system comprises a dispenser and the water treatment composition contained within the body of the dispenser, which dispenser and which system provides a readily visual cue that when the water treatment dose has been fully, or in some cases mostly or partially dispersed. For example, the dispenser sinks when fully dosed and resurfaces when empty, and in particular embodiments the water treatment comprises a means for generating visible gas bubbles and/or producing a color stream as the treatment dissolves.Type: ApplicationFiled: April 1, 2013Publication date: January 30, 2014Applicant: CHEMTURA CORPORATIONInventors: CurtIS Sayre, Zach Hansen, David Rouse, Anna Florine McLeroy
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Patent number: 8592530Abstract: Polyurethane elastomers formed from prepolymers derived from copolyester polyols. The copolyester polyols have segments derived from one or more polyesters and caprolactone or polycaprolactone. The polyurethane elastomers have good hardness stability at temperatures ranging from 0° C. to 30° C. and preferably have good hydrolytic stability.Type: GrantFiled: August 4, 2010Date of Patent: November 26, 2013Assignee: Chemtura CorporationInventor: Biau-Hung Chang
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Patent number: 8586682Abstract: A curing composition of a coordination complex comprising methylenedianiline (MDA) and a salt, and less than 1000 of free MDA. The curing composition may be used in curing polyurethanes and epoxy resins.Type: GrantFiled: April 6, 2010Date of Patent: November 19, 2013Assignee: Chemtura CorporationInventors: Thomas R. Doyle, Mukund Shah, Ronald O. Rosenberg
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Patent number: 8580716Abstract: Overbased MgO dispersions with high magnesium content and acceptably low viscosities are reproducibly prepared without gel formation by heating to 280-360° C. a mixture of MgO, selected dispersants, low MW carboxylic acids, water and a combination of high boiling hydrocarbon and organic diluent, wherein water is more than 8%, typically more than 10% of the reaction mixture. No additional solubilizing or dispersing agents, promoters or reactants such as carbon dioxide, amines, alcohols etc are needed to obtain the desired dispersions. Compositions such as lubricating oils and fuels containing the overbased magnesium dispersions as additives are also disclosed.Type: GrantFiled: June 23, 2011Date of Patent: November 12, 2013Assignee: Chemtura CorporationInventors: Qinggao Ma, Cyril A. Migdal, Kirk A. Schlup, John-Louis DiFlavio, Ronald J. Muir
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Patent number: 8563489Abstract: An alkylated 1,3-benzenediamine compound used as a deposit-control lubricant additives for organic materials including lubricating oil, gasoline, and diesel fuels. The invention improves the oxidative stability of the lubricants and fuels by adding the alkylated 1,3-benzenediamine compound. The alkylated 1,3-benzenediamine compound is formed using a catalytic hydrogenation that alkylates the 4 and/or 6 position of the central aromatic ring.Type: GrantFiled: September 17, 2008Date of Patent: October 22, 2013Assignee: Chemtura CorporationInventors: Robert G. Rowland, Joseph F. Stieber, Clifford M. Pratt, Ronald D. Abbott
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Publication number: 20130244915Abstract: Combining a metal based friction modifier, such as a molybdenum dialkyldithiocarbamate, and certain esters of hydroxy carboxylic acids, such as short chain alkyl esters of citric or tartaric acid, e.g., tributyl citrate, has a synergistic effect on lowering the friction coefficient of lubricating oils allowing one to reduce the amount of metal based friction modifier needed to adequately formulate a lubricant with low friction characteristics.Type: ApplicationFiled: February 28, 2013Publication date: September 19, 2013Applicant: Chemtura CorporationInventors: Frank J. DeBlase, Venkatramanan K. Madabusi, Susan Ferrarotti, Faith Gaenzler, Cyril A. Migdal, Gerard Mulqueen
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Patent number: 8530397Abstract: Compositions in the form of lubricating oil compositions, greases, fuels or functional fluids containing, in the form of Michael adducts, N-substituted phenylenediamine additives in which at least one of the substituents on the N atoms carries a carbonyl group that is connected to an alkyl, alkoxyalkyl, or alkylthioalkyl group either directly or via an oxygen atom.Type: GrantFiled: December 12, 2007Date of Patent: September 10, 2013Assignees: Infineum International Limited, Chemtura CorporationInventors: Tushar Kanti Bera, Rolfe J. Hartley, Jacob Emert, Jie Cheng, Theodore E. Nalesnik, Robert G. Rowland
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Patent number: 8518295Abstract: A polyol ester suitable for use as a lubricant or a lubricant base stock has a kinematic viscosity at 40° C. greater than or equal to 200 cSt and a viscosity index of greater than or equal to 100. The ester comprises the reaction product of (a) a polyhydric alcohol component comprising at least 50 mole % of penterythritol, and (b) a carboxylic acid component comprising: (i) at least one linear or branched monocarboxylic acid having 2 to 7 carbon atoms; (ii) at least one branched monocarboxylic acid having 8 to 15 carbon atoms; and (iii) at least one polycarboxylic acid having 2 to 8 carbon atoms; wherein the ratio of the number of acid groups derived from the monocarboxylic acid(s) (i) to the number of acid groups derived from the monocarboxylic acid(s) (ii) is between about 0.9 and about 1.1 and the number of acid groups derived from the polycarboxylic acid(s) (iii) is between about 15% and about 25% of the total number of acid groups derived from the carboxylic acids (i), (ii) and (iii).Type: GrantFiled: September 16, 2010Date of Patent: August 27, 2013Assignee: Chemtura CorporationInventors: Dale Carr, Jeffrey Hutter, Edward T. Hessell, Richard Kelley, Roberto Urrego
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Patent number: 8513346Abstract: A method for flame-retarding styrenic resins is disclosed wherein the method comprises incorporating in compositions an effective amount of at least one flame retardant compound comprising both aliphatic and aromatic bromine.Type: GrantFiled: March 16, 2012Date of Patent: August 20, 2013Assignee: Chemtura CorporationInventors: Stephen B. Falloon, David W. Bartley, Julia E. Holland, Wayne Meyer, Steven Bakeis
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Patent number: 8513447Abstract: Trialkyl metal compounds, such as trialkyl gallium and indium compounds, are prepared in high yield and high purity by the addition of a trialkyl aluminum compound to a mixture prepared by adding a metal trihalide, e.g., GaCl3 or InCl3, and a halide salt of a monovalent metal to an ionic liquid such as a molten salt of the formula M[AlRnX(4-n)] wherein M is a monovalent metal such as Li, Na, K or Cs, R is an alkyl group X is a halide and n is a number from 1 to 3, typically at temperatures of from 75 to 160° C.Type: GrantFiled: January 18, 2013Date of Patent: August 20, 2013Assignee: Chemtura CorporationInventors: Nicola Maggiarosa, Angelika Preetz, David J. Sikora
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Publication number: 20130207023Abstract: Mixtures of select neopentyl polyol esters are found to be highly miscible with the refrigerant R-32 over a wide temperature range. Working fluids are provided comprising R-32 and a lubricant containing these select neopentyl polyol esters and having a kinematic viscosity at 40° C. of 32 cSt or higher. Specifically, the lubricant composition of the invention comprises a mixture of alkylcarboxy esters of neopentyl polyols, wherein at least 10 wt % of all neopentyl polyol esters are esters of pentaerythritol oligomers of 4 or more pentaerythritol monomer groups, and wherein a majority of the alkylcarboxylate groups of the alkylcarboxy esters of neopentyl polyols are pentanoyl groups wherein at least 15% of the pentanoyl groups are branched.Type: ApplicationFiled: February 14, 2013Publication date: August 15, 2013Applicant: CHEMTURA CORPORATIONInventors: Travis Benanti, Edward T. Hessell
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Publication number: 20130207022Abstract: Mixtures of select neopentyl polyol esters are found to be highly miscible with the refrigerant R-32 over a wide temperature range. Working fluids are provided comprising R-32 and a polyol ester lubricant composition having a kinematic viscosity at 40° C. of from 32 to 120 cSt, said lubricant composition comprising C5-10 alkylcarboxy esters di-pentaerythritol wherein at least 40 mol %, typically more, of the alkylcarboxylate groups of the alkylcarboxy esters are pentanoyl groups.Type: ApplicationFiled: February 14, 2013Publication date: August 15, 2013Applicant: CHEMTURA CORPORATIONInventors: Edward T. Hessell, Travis Benanti
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Publication number: 20130200294Abstract: Polyol ester lubricant compositions comprising predominately straight chain C5-10 alkylcarboxlate esters of neopentyl alcohols, for example, straight chain C5-10 alkylcarboxlate esters of one or more of trimethylol propane, pentaerythritol, di-pentaerythritol, tri-pentaerythritol or pentaerythritol oligomers, and working fluids comprising said lubricant compositions and a hydrocarbon refrigerant, suitable for heat transfer devices including refrigeration and air conditioning systems are provided. The polyol ester lubricant compositions have a kinematic viscosity at 40° C. of 22-125 cSt and a viscosity index of greater than 140, and are characterized by having very high lubricity, excellent load carrying properties and excellent low temperature properties.Type: ApplicationFiled: February 5, 2013Publication date: August 8, 2013Applicant: CHEMTURA CORPORATIONInventors: Dale D. Carr, Jeffrey A. Hutter, Richard Kelley, Roberto Urrego, Edward T. Hessell
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Publication number: 20130197252Abstract: Trialkyl metal compounds, such as trialkyl gallium and indium compounds, are prepared in high yield and high purity by the addition of a trialkyl aluminum compound to a mixture prepared by adding a metal trihalide, e.g., GaCl3 or InCl3, and a halide salt of a monovalent metal to an ionic liquid such as a molten salt of the formula M[AlRn X(4-n)] wherein M is a monovalent metal such as Li, Na, K or Cs, R is an alkyl group X is a halide and n is a number from 1 to 3, typically at temperatures of from 75 to 160° C.Type: ApplicationFiled: January 18, 2013Publication date: August 1, 2013Applicant: Chemtura CorporationInventors: Nicola Maggiarosa, Angelika Preetz, David J. Sikora
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Publication number: 20130190434Abstract: Polyolefin compositions prepared by processing a polyolefin resin and a mixture of a select hindered phenol and select liquid phosphite above the melting point of the polyolefin contain a higher amount of retained active phosphorus than when other common phosphites are used. The compositions, and films, fibers and other molded articles prepared from the compositions show improved stabilization against NOX discoloration and long term oxidation. The select liquid phosphite consists mainly of a mixture of triphenyl phosphite derivatives wherein the phenyl groups are substituted by different numbers of butyl and/or amyl substituents.Type: ApplicationFiled: January 15, 2013Publication date: July 25, 2013Applicant: Chemtura CorporationInventor: Chemtura Corporation
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Publication number: 20130178404Abstract: Microwave irradiation is used to prepare stable dispersions of small particle metal oxides, such as magnesium oxide and calcium oxide, from a composition prepared from a mixture comprising an oxide, hydroxide or carbonate of the metal, a carrier, a sulfonic or carboxylic acid dispersant, and typically a low MW carboxylic acid and water. Dispersions with an average particle size of one micron or less, often from 1-100 nm, are typically obtained.Type: ApplicationFiled: November 20, 2012Publication date: July 11, 2013Applicant: Chemtura CorporationInventor: Chemtura Corporation
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Publication number: 20130150275Abstract: Radical initiated reactions of phenylenediamines with alkylated aromatic amines produce an antioxidant mixture containing cross reaction products of the phenylenediamines and alkylated aromatic amines which are useful, for example, as antioxidants, stabilizers, and antiozonants for lubricants, electronic chemicals, rubbers, urethanes and other polymer resins, crop protection, pharmaceuticals, dyes and tonersType: ApplicationFiled: November 20, 2012Publication date: June 13, 2013Applicant: CHEMTURA CORPORATIONInventor: Chemtura Corporation
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Patent number: D685900Type: GrantFiled: November 27, 2012Date of Patent: July 9, 2013Assignee: Chemtura CorporationInventors: Curt Sayre, Zach Hansen, David Rouse, Brian Holliday, Steven Dietz, Rebecca Covington, Anna McLeroy