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
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
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
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.
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
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.
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
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
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
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.
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
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
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.
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.
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.
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.
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
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