Patents Assigned to Chemtura Corporation
  • Publication number: 20100069687
    Abstract: A process for reducing the level of residual catalyst comprising one or more 1-halo-2-methylpropanes and a Group 13 metal catalyst from a crude polyolefins product, the process comprising contacting the crude organic product with a solid adsorbent in an adsorbent system. Also provided is a co-catalyst system for polymerizing alpha olefins.
    Type: Application
    Filed: October 12, 2009
    Publication date: March 18, 2010
    Applicant: Chemtura Corporation
    Inventors: Vilen KOSOVER, Jesus R. FABIAN, Daniel C. KNOWLES, Mitchel COHN, Werner A. THURING
  • Publication number: 20100059421
    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: Application
    Filed: September 5, 2008
    Publication date: March 11, 2010
    Applicant: CHEMTURA CORPORATION
    Inventors: Christopher Reed, Nidhi Rawat, Melissa Hickman, Jeffrey N. Smith, Jerry Foster, Matthew Gabriel, Greg Harding, H. Shaw Strothers, IV, Allison Guyton, Noah McNeely
  • Publication number: 20100055203
    Abstract: Solid water treatment compositions are provided comprising (a) a halogen-containing source; (b) a boron-containing source; and (c) a polyphosphate-containing source. Methods for their use are also provided.
    Type: Application
    Filed: October 19, 2009
    Publication date: March 4, 2010
    Applicant: CHEMTURA CORPORATION
    Inventors: Nidhi Rawat, David F. Purdy, Michael J, Engram
  • Publication number: 20100041781
    Abstract: There is presented a new flame retardant composition comprising a brominated aromatic composition and a butyl substituted phenyl phosphate.
    Type: Application
    Filed: October 16, 2009
    Publication date: February 18, 2010
    Applicant: Chemtura Corporation
    Inventors: Stephen B. FALLOON, Richard S. Rose, Matthew D. Phillips
  • Publication number: 20100036151
    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: Application
    Filed: August 6, 2009
    Publication date: February 11, 2010
    Applicant: Chemtura Corporation
    Inventor: Jonathan S. HILL
  • Publication number: 20100025636
    Abstract: A composition comprising at least two different alkylaryl phosphites, wherein some alkyl groups have a different number of carbon atoms than other alkyl groups and wherein the composition is a liquid at ambient conditions.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 4, 2010
    Applicant: Chemtura Corporation
    Inventors: Michael E. Gelbin, Maurice Power, Jonathan Hill
  • Publication number: 20100009875
    Abstract: A lubricating oil composition comprising: (A) a base stock; and (B) a liquid additive package. The liquid additive package comprises: (i) an alkylated diphenylamine; (ii) at least 5 weight % of a phenyl naphthylamine, based on the weight of the additive package; and (iii) a sulfur-containing phenol.
    Type: Application
    Filed: June 2, 2009
    Publication date: January 14, 2010
    Applicant: Chemtura Corporation
    Inventor: Jun DONG
  • Publication number: 20100004363
    Abstract: A composition is disclosed that comprises a blend of at least two different phosphites of the structure wherein R1, R2, and R3 are independently selected alkylated aryl groups and wherein said blend is a liquid at ambient conditions. The compositions are useful for stabilizing thermoplastic resins and elastomers.
    Type: Application
    Filed: July 31, 2009
    Publication date: January 7, 2010
    Applicant: Chemtura Corporation
    Inventors: Michael E. Gelbin, Maurice Power, Jonathan S. Hill
  • Publication number: 20090326112
    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: Application
    Filed: July 31, 2009
    Publication date: December 31, 2009
    Applicant: Chemtura Corporation
    Inventors: Michael E. Gelbin, Maurice Power, Jonathan S. Hill
  • Patent number: 7635731
    Abstract: Provided is a composition comprising fatty acid bis-amide, inorganic particulate such as pumice, cellulosic particulate, thermoplastic and maleic anhydride grafted polyolefin. The combination of an ethylene bis-amide and a minor amount of pumice produces cellulosic-thermoplastic composite that has superior extrusion properties over conventional metal stearate/ethylene bis-stearamide (EBS) compositions such as improved flex strength and resistance to water absorption.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: December 22, 2009
    Assignee: Chemtura Corporation
    Inventors: William D. Sigworth, Robert G. Rowland, Mark Richardson
  • Patent number: 7629300
    Abstract: A composition is disclosed that comprises the reaction product of an acidic organic compound, a boron compound, and a basic organic compound. The composition is useful as a detergent additive for lubricants and hydrocarbon fuels.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: December 8, 2009
    Assignee: Chemtura Corporation
    Inventor: Ronald J. Muir
  • Patent number: 7629412
    Abstract: A composition is disclosed that comprises rigid PVC and from about 0.1 to about 10 phr of an EPM copolymer. The compositions optionally also include one or several additives selected from lubricants, impact modifiers, process aids, fusion promoters, heat stabilizers, co-stabilizers, fillers, pigments, antioxidants, UV absorbers, antistats, metal release agents, and plasticizers. The EPM is particularly useful as a PVC gloss reducing agent and additive enhancing agent for such polymer additives, particularly lubricants, heat stabilizers, UV absorbers, and pigments.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: December 8, 2009
    Assignee: Chemtura Corporation
    Inventors: Peter Frenkel, Perry M. Reed, Larry Fiedler
  • Patent number: 7625496
    Abstract: Solid water treatment compositions are provided comprising (a) a halogen-containing source; (b) a boron-containing source; and (c) a polyphosphate-containing source. Methods for their use are also provided.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: December 1, 2009
    Assignee: Chemtura Corporation
    Inventors: Nidhi Rawat, David F. Purdy, Michael J. Engram
  • Patent number: 7622431
    Abstract: Reaction products of an acidic organic compound, a boron compound, and an alkoxylated amine and/or alkoxylated amide. Also disclosed are lubricating oil compositions and fuel compositions containing the reaction products.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: November 24, 2009
    Assignee: Chemtura Corporation
    Inventor: Ronald J. Muir
  • Patent number: 7621971
    Abstract: A composition is disclosed that comprises the reaction product of an acidic organic compound, a boron compound, and a basic organic compound. The composition is useful as a detergent additive for lubricants and hydrocarbon fuels.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: November 24, 2009
    Assignee: Chemtura Corporation
    Inventor: Ronald J. Muir
  • Patent number: 7618466
    Abstract: Reaction products of an acidic organic compound, a boron compound, and an alkoxylated amine and/or alkoxylated amide. Also disclosed are lubricating oil compositions and fuel compositions containing the reaction products.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: November 17, 2009
    Assignee: Chemtura Corporation
    Inventor: Ronald J. Muir
  • Patent number: 7618467
    Abstract: A composition is disclosed that comprises the reaction product of an acidic organic compound, a boron compound, and a basic organic compound. The composition is useful as a detergent additive for lubricants and hydrocarbon fuels.
    Type: Grant
    Filed: January 17, 2005
    Date of Patent: November 17, 2009
    Assignee: Chemtura Corporation
    Inventor: Ronald J. Muir
  • Publication number: 20090281360
    Abstract: The invention is directed to polyalphaolefins (PAOs) and processes for forming PAOs. In one embodiment, the invention is to a process for forming a PAO comprising polymerizing C8-C12 ?-olefin monomers in the presence of hydrogen, a C8-C12 saturated hydrocarbon, e.g., a C8-C12 saturated straight-chain hydrocarbon, and a catalyst system in a reaction vessel, wherein the C8-C12 saturated straight-chain hydrocarbon has about the same number of carbon atoms as the C8-C12 ?-olefin monomers. The C8-C12 saturated straight-chain hydrocarbon optionally is derived from a crude PAO product formed by the process of the invention. The invention is also directed to reaction systems for performing the processes of the invention, to processes for controlling PAO viscosity based on residence time, and to the removal of spent catalyst using a solid adsorbent particles.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 12, 2009
    Applicant: Chemtura Corporation
    Inventors: Daniel C. Knowles, Jesus R. Fabian, Vilen Kosover, Susan Ferrarotti, E. Brian Fox
  • Patent number: 7615168
    Abstract: There is presented a new flame retardant composition comprising a brominated aromatic composition and a butyl substituted phenyl phosphate.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: November 10, 2009
    Assignee: Chemtura Corporation
    Inventors: Stephen B. Falloon, Richard S. Rose, Matthew D. Phillips
  • Patent number: 7612156
    Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: November 3, 2009
    Assignee: Chemtura Corporation
    Inventors: Wayne Meyer, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker