Patents Assigned to Chemtura Corporation
  • Hydrolytically stable phosphite compositions
    Patent number: 8048946
    Abstract: Hydrolytically stable phosphites as secondary antioxidants for polymer resins comprising a phosphite and an amine compound. The phosphite may be a liquid phosphite composition. The amine compound may have the structure of formula I: wherein x is 1, 2 or 3; R1 is selected from the group consisting of hydrogen, and straight or branched C1-C6 alkyl, and R2 is selected from the group consisting of straight or branched C1-C30 alkyl.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: November 1, 2011
    Assignee: Chemtura Corporation
    Inventors: Jonathan S. Hill, Maurice Power
  • 1,3 dithiolane-2-thione additives for lubricants and fuels
    Patent number: 8048832
    Abstract: Fuels, especially hydrocarbon fuels, and lubricants, especially lubricating oils, contain a class of anti-corrosion, anti-wear, anti-fatigue, and extreme pressure additives that are derived from 1,3-dithiolane-2-thiones.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: November 1, 2011
    Assignee: Chemtura Corporation
    Inventor: Robert G. Rowland
  • Phosphite stabilizer for lubricating base stocks and thermoplastic polymers
    Patent number: 8049041
    Abstract: A substituted phosphite suitable for lubricating base stocks and thermoplastic polymers represented by the structure: wherein R1 is selected from the group consisting of C1-C22 alkyl and C4-C22 cycloalkyl; R2 and R3 are selected to form a C5-C18 aryl; and R4 and R5 are selected from the group consisting of H, C1-C22 alkyl, C2-C22 alkenyl, C4-C22 cycloalkyl, and C5-C8 aryl. The substituted phosphite may be combined with at least one primary antioxidant as well as other additives.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: November 1, 2011
    Assignee: Chemtura Corporation
    Inventors: Michael E. Gelbin, Jun Dong
  • Refrigeration Oil and Compositions with Carbon Dioxide Refrigerant
    Publication number: 20110240910
    Abstract: Lubricant compositions comprising certain mixtures of esters of pentaerythritol, di-pentaerythritol, tri-pentaerythritol and higher pentaerythritol oligomers are ideally suited for use with CO2 as refrigerant in heat transfer devices provided that at least 30% by weight of the esters are esters of pentaerythritol oligomers containing 4 or more pentaerythritol monomer units and wherein a majority of the alkylcarboxylate groups are straight chain C3-6 alkanoyl groups, such as n-pentanoyl. Said mixture of alkylcarboxylate esters are shown to not only have higher than expected viscosity and exceptional CO2 miscibility, but also possess excellent lubricity, film building properties and load bearing properties even as part of a lubricant/CO2 solution.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 6, 2011
    Applicant: CHEMTURA CORPORATION
    Inventors: Dale Carr, Jeffrey Hutter, Richard Kelley, Roberto Urrego, Edward T. Hessell
  • Diaromatic amines
    Patent number: 8017805
    Abstract: Diaromatic amine compounds or an isomer or isomeric mixture thereof is provided having the general formula: wherein n, m, R, R1, R2, R3, R4 and R5 are as defined herein are provided. Lubricating oil compositions and stabilizer-containing compositions containing the diaromatic amine compounds are also provided.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: September 13, 2011
    Assignee: Chemtura Corporation
    Inventor: Theodore E. Nalesnik
  • Means for controlling the exothermic reaction of styrenic monomers with sulfonic acids
    Patent number: 8013083
    Abstract: A method for inhibiting the premature polymerization of styrenic monomers is disclosed wherein the method comprises adding to said monomers a combination of: (A) at least one inhibitor that is a sulfonic acid compound in a concentration sufficient to initiate cationic polymerization of said styrenic monomers at any point of the manufacturing or purification process and cause a resulting temperature increase; and (B) at least one amine in a concentration sufficient to reduce said cationic polymerization and said temperature increase; whereby an uncontrolled exothermic reaction between said sulfonic acid compound and said styrenic monomers will be prevented.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: September 6, 2011
    Assignee: ChemTura Corporation
    Inventors: Vilan Kosover, Jesus A. Fabian, Istvan Lippai, Brigitte Benage, Gerald J. Abruscato
  • PRODUCTION PROCESSES AND SYSTEMS, COMPOSITIONS, SURFACTANTS, MONOMER UNITS, METAL COMPLEXES, PHOSPHATE ESTERS, GLYCOLS, AQUEOUS FILM
    Publication number: 20110213113
    Abstract: RF-compositions including surfactants, foam stabilizers, monomers, polymers, urethanes, intermediates, metal complexes, phosphate esters as well as telomerization methods are provided.
    Type: Application
    Filed: May 6, 2011
    Publication date: September 1, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY CHEMTURA CORPORATION
    Inventors: Andrew Jackson, Vimal Sharma, E. Bradley Edwards, Janet Boggs, Vicki Hedrick, Stephan Brandstadter, John Chien, Edward Norman, Robert Kaufman, Bruno Ameduri, George K. Kostov
  • Solid alkylaryl phosphite compositions and methods for manufacturing same
    Patent number: 8008385
    Abstract: The invention is directed to various alkylaryl phosphite compositions that ideally are suitable for use as secondary antioxidants in polymers. In one aspect, the phosphite composition comprises a tris(dialkylaryl)phosphite in an amount from 20 to 93 weight percent; and at least one of: a bis(dialkylaryl)monoalkylaryl phosphite; a bis(monoalkylaryl)dialkylaryl phosphite; and a tris(monoalkylaryl)phosphite. The inventive phosphite composition is a solid at ambient conditions. The invention also relates to alkylate compositions and processes for forming such alkylate compositions and such phosphite compositions.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: August 30, 2011
    Assignee: Chemtura Corporation
    Inventors: Jonathan S. Hill, Maurice Power, Peter Smith
  • Liquid butylaryl phosphite compositions
    Patent number: 8008384
    Abstract: A phosphite composition comprising at least two of a tris(dibutylaryl) phosphite, a tris(monobutylaryl) phosphite, a bis(dibutylaryl)monobutylaryl phosphite, and a bis(monobutylaryl)dibutylaryl phosphite. The inventive phosphite composition is a liquid at ambient conditions.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: August 30, 2011
    Assignee: Chemtura Corporation
    Inventors: Michael E. Gelbin, Maurice Power, Jonathan S. Hill
  • Floating dispenser for dispensing a solid dissolvable chemical into ambient water
    Patent number: 8007664
    Abstract: A floating dispenser is provided for dispensing a solid, dissolvable water treatment chemical into ambient water. The dispenser includes a bucket having top and bottom ends, a top wall covering the top end, an opening for admitting ambient water into the bucket interior, and a floatation ring that keeps only the top end above water such that the interior is water filled when the dispenser floats. A basket is disposed in the interior of the bucket for carrying a solid, dissolvable water treatment chemical, such as calcium hypochlorite. The basket is buoyant and movable vertically toward the top wall of the bucket. The dispenser includes a refill indicator that indicates when most of a full load of said chemical has dissolved. The refill indicator includes a pair of tabs that are connected to the basket and slidably mounted in slots in the top wall.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: August 30, 2011
    Assignees: Chemtura Corporation, Slingshot Product Development Group
    Inventors: Christopher Reed, Nidhi Rawat, Melissa Hickman, Jeffrey N. Smith, Jerry Foster, Matthew Gabriel, Greg Harding, H. Shaw Strothers, IV, Allison Guyton, Noah McNeely
  • Liquid amylaryl phosphite compositions
    Patent number: 8008383
    Abstract: A phosphite composition comprising at least two of a tris(diamylaryl) phosphite, a tris(monoamylaryl) phosphite, a bis(diamylaryl)monoamylaryl phosphite, and a bis(monoamylaryl)diamylaryl phosphite. The inventive phosphite composition is a liquid at ambient conditions.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: August 30, 2011
    Assignee: Chemtura Corporation
    Inventors: Michael E. Gelbin, Maurice Power, Jonathan S. Hill
  • FLAME RETARDANT HALOGENATED PHENYL ETHERS
    Publication number: 20110184107
    Abstract: A halogenated non-polymeric phenyl ether is described having the general formula (I): wherein each X is independently Cl or Br, n is an integer of 1 or 2, each m is independently an integer of 1 to 5 and each p is independently an integer of 1 to 4, provided that, when X is Cl, the total amount halogen in the ether is from about 50 to about 65 wt % and when, X is Br, the total amount halogen in the ether is from at least 70 wt % to about 79 wt %.
    Type: Application
    Filed: January 25, 2010
    Publication date: July 28, 2011
    Applicant: CHEMTURA CORPORATION
    Inventor: Larry D. Timberlake
  • Preparation of tetrakis[3(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl oxymethyl]methane
    Patent number: 7985871
    Abstract: A transesterification process for the preparation of tetrakis[3-(3,5-di-tert-butyl-4-hydroxy phenyl)propionyl oxymethyl]methane by the reaction of methyl-(3,5-di-tert-butyl-4-hydroxy phenyl)propionate ester with pentaerythritol wherein the reaction takes place in the presence of an ester exchange catalyst combination consisting of (a) at least one basic or neutral catalyst and (b) at least one metal compound capable of behaving as a Lewis acid being different from the basic or neutral catalyst and wherein the reaction is conducted through a first stage in which only the at least one basic or neutral catalyst is present in the reaction mixture followed by a second stage which commences with the addition of Lewis acid catalyst to the reaction mixture when the amount of di-substituted intermediate product contained within the reaction mixture has been reduced to less than 20 area % analysed by HPLC.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: July 26, 2011
    Assignee: Chemtura Corporation
    Inventor: Jonathan S. Hill
  • Stabilized polymer compositions
    Patent number: 7976729
    Abstract: A composition for stabilizing organic polymers comprising a sterically hindered phenol produced by reacting p-cresol and dicyclopentadiene to produce a precursor and alkylating the precursor with isobutylene, and a tertiary amine oxide.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: July 12, 2011
    Assignee: Chemtura Corporation
    Inventor: Jonathan S. Hill
  • Tetrabromophthalic Diester Flame Retardants and their Production
    Publication number: 20110166272
    Abstract: In a process for producing a tetrabromophthalic diester composition, a liquid reaction mixture is prepared comprising tetrabromophthalic anhydride (TBPA), a C2 to C6 polyhydric aliphatic alcohol (PAA) and an alkylene oxide (AO) selected from the group consisting of ethylene oxide and propylene oxide, said reaction mixture being substantially free of an organic solvent. While agitating the reaction mixture, the temperature of the reaction mixture is raised to at least 50° C. to allow the TBPA to react with the PAA and AO to produce a diester composition. The reaction is terminated when the diester composition has an acid value equal to or less than 0.25 mg KOH/gm of the diester composition.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 7, 2011
    Applicant: CHEMTURA CORPORATION
    Inventors: David W. Bartley, Roy Pickering, Thomas G. Ray
  • Antioxidant additive for biodiesel fuels
    Patent number: 7964002
    Abstract: A synergistic combination antioxidant mixture that provides excellent characteristics for biodiesel fuel compositions, when incorporated therein.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: June 21, 2011
    Assignee: Chemtura Corporation
    Inventors: Frank J. DeBlase, Brian E. Fox, Cyril A. Migdal
  • Liquid amylaryl phosphite compositions and alkylate compositions for manufacturing same
    Patent number: 7947769
    Abstract: Alkylate compositions comprising a monoamylphenol in an amount ranging from 25 weight percent to 99 weight percent and a diamylphenol in an amount ranging from 1 weight percent to 60 weight percent, the weight percentages being based on the total weight of all components in the alkylate composition. The invention is also to processes for making such alkylate compositions and to processes for forming stable liquid amylaryl phosphite compositions from such alkylate compositions.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: May 24, 2011
    Assignee: Chemtura Corporation
    Inventors: Michael E. Gelbin, Maurice Power, Jonathan Hill
  • Accelerated Cure of Isocyanate Terminated Prepolymers
    Publication number: 20110118431
    Abstract: A prepolymer mixture for preparing a polyurethane elastomer, the mixture comprising an isocyanate terminated prepolymer and a nitrogen-containing organic salt. The nitrogen-containing organic salt may be selected from the group consisting of an ammonium salt, an imidazolium salt, a pyridinium salt, a pyrrolidinium salt, a piperidinium salt, and a morpholinium salt.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 19, 2011
    Applicant: CHEMTURA CORPORATION
    Inventors: Thomas R. Doyle, Mark P. Ferrandino, Ronald O. Rosenberg
  • Method for determining chlorine demand in water
    Patent number: 7943389
    Abstract: Methods for determining chlorine demand in water are provided. One method comprises (a) providing a test water sample containing at least one contaminant and a source of chlorine and a source of bromide; (b) heating the test water sample for a suitable time and temperature sufficient to substantially oxidize the at least one contaminant in the test water sample; and (c) determining the content of residual chlorine present in the test water sample.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: May 17, 2011
    Assignee: Chemtura Corporation
    Inventor: Karen Rigsby
  • Composition and method for inhibiting polymerization and polymer growth
    Patent number: 7943809
    Abstract: A method for inhibiting the premature polymerization and the polymer growth of ethylenically unsaturated monomers is disclosed wherein the method comprises adding to said monomers an effective amount of at least one hydrogen donor or electron acceptor. In a preferred embodiment, the hydrogen donor or electron acceptor is used in combination with a stable nitroxyl free radical.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: May 17, 2011
    Assignee: Chemtura Corporation
    Inventors: Brigitte Benage, Gerald J. Abruscato, David J. Sikora, Ruben S. Grewal