Patents Assigned to Chemtura Corporation
  • Patent number: 7943807
    Abstract: The invention relates to a polyalphaolefin formed from a decene and propene and having a branch level greater than 19% and to a process for forming such polyalphaolefins. The invention also relates to a process for forming a polyalphaolefin from at least two monomers, the two monomers comprising a decene and propene, the process comprising the steps of, inter alia, providing a correlation between the total amount of propene used to form the polyalphaolefin and at least one of branch level or viscosity of the polyalphaolefin to make polyalphaolefins comprising decene and propene with predictable branch levels and viscosities.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: May 17, 2011
    Assignee: Chemtura Corporation
    Inventors: Willie Charles Burton, E. Brian Fox
  • Patent number: 7928045
    Abstract: A lubricant composition is disclosed that comprises lubricating oil and a mixture of at least two antioxidants, the first antioxidant being a substituted diphenylamine and/or a heterocyclic amine and the second antioxidant being a substituted phenol. Also disclosed is a method of increasing the oxidation stability of a lubricating oil comprising adding thereto at least two antioxidants, the first antioxidant being a substituted diphenylamine and/or a heterocyclic amine and the second antioxidant being a substituted phenol.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: April 19, 2011
    Assignee: Chemtura Corporation
    Inventors: Jun Dong, Gerard Mulqueen, Michael J. Goode, Alan Holt, William D. Phillips
  • Publication number: 20110079749
    Abstract: 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: Application
    Filed: September 16, 2010
    Publication date: April 7, 2011
    Applicant: CHEMTURA CORPORATION
    Inventors: Dale Carr, Jeffrey Hutter, Edward T. Hessell, Richard Kelley, Roberto Urrego
  • Publication number: 20110071237
    Abstract: Flame retardant systems containing brominated flame retardants and chlorinated flame retardants with synergists and char formers are incorporated into wood-filled resins in combination with compatibilizers to enhance physical properties and to increase water extraction resistance and long term durability. Desirable embodiments of the invention relate to brominated and chlorinated flame retardant additives, synergists, and char formers for use in resins, including polyolefins, fillers, wood-filled polyolefins, in particular wood-filled polyolefins comprising over 20% wood flour, in combination with compatibilizers and methods of use of the flame retardants and fillers. The invention includes methods of making and using the composition.
    Type: Application
    Filed: August 11, 2010
    Publication date: March 24, 2011
    Applicant: CHEMTURA CORPORATION
    Inventors: MICHAEL J. GOODE, MARY HARSCHER, WILLIAM D. SIGWORTH, TIMOTHY T. LAWLOR
  • Patent number: 7909192
    Abstract: The invention is a vent for use with a container, such as commercial steel pails and drums, and a method for venting containers. The vent has a cap seal with one or more semipermeable membranes covering an orifice in the cap seal. The membrane prevents the passage of at least one atmospheric component, but allows the free passage of air. When a product is filled into the container at an elevated temperature and cools, a vacuum is formed within the container. The resulting vacuum opens a vacuum release device in the vent and pulls air through a hole in the cap seal, which is protected by a micro-porous membrane. The venting of air into the container relieves the vacuum without damage to the container or the product within the container.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: March 22, 2011
    Assignee: Chemtura Corporation
    Inventors: Robert J. Dempsey, Roland P. Weil, Geeta Govindan, Reine Smirz
  • Publication number: 20110065870
    Abstract: A mixture of tris(hydroxyphenyl) or tris(alkoxyphenyl) phosphine oxide isomers is provided each having the formula (I): wherein R is hydrogen or an alkyl group containing from 1 to 6 carbon atoms, R1 is an alkyl group containing from 1 to 6 carbon atoms, x is an integer between 0 and 4, and each OR group is in the ortho or para position with respect to the bond between the P atom and the associated phenyl group such that the ratio of the number of OR groups in the ortho-position with respect to the bond between the P atom and the associated phenyl group to the number of OR groups in the para-position with respect to the bond between the P atom and the associated phenyl group is between about 50:50 and about 0.1:99.9.
    Type: Application
    Filed: August 17, 2010
    Publication date: March 17, 2011
    Applicant: Chemtura Corporation
    Inventors: Larry D. Timberlake, Mark V. Hanson, James D. Sibecker
  • Publication number: 20110065838
    Abstract: A hydroxyphenyl or alkoxyphenyl phosphine oxide composition comprises (i) a first mixture of mono-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers each having the formula (I): (ii) a second mixture of bis-(hydroxyaryl) or (alkoxyphenyl) phosphine oxide isomers each having the formula (II): and (iii) a third mixture of tris-(hydroxyaryl) or (alkoxyphenyl) phosphine oxide isomers each having the formula (III): wherein R is hydrogen or an alkyl group containing from 1 to 6 carbon atoms, R1 and R2 are the same or different and each is an alkyl group containing from 1 to 6 carbon atoms, and each of x and y is an integer between 0 and 4.
    Type: Application
    Filed: August 17, 2010
    Publication date: March 17, 2011
    Applicant: CHEMTURA CORPORATION
    Inventors: Larry D. Timberlake, Mark V. Hanson, James D. Sibecker
  • Patent number: 7906467
    Abstract: Provided are compounds of formula wherein R1 is t-octyl, AR is phenyl, R2 is an alkyl substituted carboxyl and m is 0, 1, or 2. Lubricating oils and hydraulic fluids comprising a polyol ester lubricant in combination with one or more compounds of formula I and methods for their use are also provided.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: March 15, 2011
    Assignee: Chemtura Corporation
    Inventor: Eugene P. DiBella
  • Patent number: 7902280
    Abstract: Disclosed herein are highly stable styrenated phenolic compositions that are liquids at room temperature, and polymer articles and lubricant compositions containing such styrenated phenolic compositions. Also disclosed are processes for forming such styrenated phenolic compositions, which processes afford distyrenated phenolics assaying at 70% minimum by total GC area, comprising reacting styrene with one or more phenolics, e.g., at least one of phenol, p-cresol and/or o-cresol, in the presence of an acid catalyst, preferably a sulfonic acid catalyst, at elevated temperature, wherein the resulting product mixture comprises one or more monostyrenated phenolics, one or more distyrenated phenolics, and one or more tristyrenated phenolics.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: March 8, 2011
    Assignee: Chemtura Corporation
    Inventors: Michael E. Gelbin, Jonathan S. Hill, Maurice Power, Jun Dong, Cyril A. Migdal, Gerard Mulqueen, Joseph F. Stieber
  • Publication number: 20110054126
    Abstract: A final polymer product is formed using a two-stage process and system. In the first stage, a catalyst system is used to polymerize an alpha-olefin monomer to form an effluent. In the second stage, additional alpha-olefin monomer is supplied and is polymerized in the presence of the effluent from the first stage. The second stage produces the final polymer product, which may have a lower molecular weight and viscosity than the polymer foamed in the first stage. The final polymer product may be used as a base stock for lubricant compositions.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 3, 2011
    Applicant: Chemtura Corporation
    Inventors: Daniel C. KNOWLES, Jesus R. FABIAN
  • Patent number: 7888414
    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: Grant
    Filed: April 16, 2007
    Date of Patent: February 15, 2011
    Assignee: Chemtura Corporation
    Inventors: Michael E. Gelbin, Maurice Power, Jonathan S. Hill
  • Publication number: 20110028626
    Abstract: In a process for producing a flame retardant halogenated aryl ether oligomer composition, an aryl ether oligomer is combined with a liquid carrier having a boiling point lower than water to form a slurry or solution of the aryl ether oligomer in the carrier. A halogenating agent is included in the slurry or solution to form a reaction composition, which is reacted at a temperature between about 20° C. and about 80° C. to form a reaction product containing the desired halogenated aryl ether oligomer composition. Unreacted halogenating agent is removed from the reaction product and the reaction product is contacted with an aqueous medium at a temperature sufficient to drive off the liquid carrier and produce an aqueous slurry of the halogenated aryl ether oligomer composition. The desired halogenated aryl ether oligomer composition is then recovered from the aqueous slurry.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 3, 2011
    Applicant: CHEMTURA CORPORATION
    Inventors: Larry D. Timberlake, Julie A. McKeown
  • Publication number: 20110024703
    Abstract: An aryl composition includes aryl ether oligomers. These compositions may be prepared by reaction of one or more dihalobenzenes with one or more dihydroxybenzenes by an Ullman ether reaction. The oligomers may have two or more benzene rings and include terminal halogen, e.g., bromine (Br), or hydroxyl (OH) groups. These oligomers may be brominated to form flame retardant compositions for thermoplastic polymers.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 3, 2011
    Applicant: Chemtura Corporation
    Inventors: Larry D. Timberlake, Julia E. Holland
  • Patent number: 7880047
    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: Grant
    Filed: May 6, 2008
    Date of Patent: February 1, 2011
    Assignee: Chemtura Corporation
    Inventors: Daniel C. Knowles, Jesus R. Fabian, Vilen Vilan Kosover, Susan Ferrarotti, E. Brian Fox, Frank DeBlase
  • Patent number: 7879934
    Abstract: A rubber composition is disclosed wherein the rubber composition contains at least an effective amount of at least one substituted or unsubstituted diaryl amine-containing compound having at least one substituted or unsubstituted, saturated or partially saturated C5-C30 ring structure optionally containing one or more heteroatoms fused to at least one of the aryl rings.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: February 1, 2011
    Assignee: Chemtura Corporation
    Inventors: Theodore E. Nalesnik, John Kounavis, Joseph Stieber
  • Publication number: 20100324219
    Abstract: An arylalkenyl ether oligomer is produced by the reaction of a polyhaloalkene with a polyhydroxyaryl compound. Halogenation of the resultant oligomer produces a flame retardant having both aromatic and aliphatic bromine groups.
    Type: Application
    Filed: June 14, 2010
    Publication date: December 23, 2010
    Applicant: CHEMTURA CORPORATION
    Inventors: Frank Liu, Kenneth Bol, Mark Hanson, Larry Timberlake
  • Patent number: 7846884
    Abstract: Lubricating oil compositions containing (a) at least one oil of lubricating viscosity and (b) an effective amount of at least one thio-functionalized phenylenediamine compound of the general formula: wherein R1, R2, R3, R4 and n are as defined herein are provided. Methods of operating an engine employing the lubricating oil composition are also provided.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: December 7, 2010
    Assignee: Chemtura Corporation
    Inventor: Qinggao Ma
  • Patent number: 7847125
    Abstract: A compound having the formula: R1 and R2 together with the carbon atoms to which they are bonded are joined together to form a C3-C30 ring. The C3-C30 ring may be substituted with one or more substituents or unsubstituted. The C3-C30 ring may contain one or more heteroatoms. The C3-C30 ring may be saturated, partially unsaturated, or fully unsaturated.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: December 7, 2010
    Assignee: Chemtura Corporation
    Inventors: Qinggao Ma, Cyril Migdal
  • Patent number: 7838703
    Abstract: A diaromatic amine compound having the general formula: wherein R1 and R2 together with the carbon atoms to which they are bonded are joined together to form a C3-C30 ring, and R3 is an allyl, benzyl, or methallyl group. R4, R5, and R6 are independently hydrogen, C1-C30 alkyl group, C2-C30 alkenyl group, C3-C12 cycloalkyl group, C5-C25 aryl group, C6-C25 arylalkyl group, or C1-C30 alkoxy group.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: November 23, 2010
    Assignee: Chemtura Corporation
    Inventors: Qinggao Ma, Cyril Migdal
  • Publication number: 20100292376
    Abstract: A flame-retardant resin composition comprises a base resin (A), such as a polyester, polyamide or polycarbonate resin, and an organophosphorus compound (B) having at least one of the following formulas (I), (II) and (III): where A is selected from O, S, SO2, a single bond, alkyl, and —CH2—P1; P1 is a phosphorus-containing group of the formula: R1 and R2 are the same or different and each is selected from H, O-alkyl, O-aryl, alkyl, aryl, and OM; R3 is H or alkyl; M=Na, K, Zn, Al, Ca; a is an integer from 0 to 4, provided that a is at least 1 unit for each polymer chain; n is an integer from 1 to 100,000 and m is an integer from 0 to 100,000.
    Type: Application
    Filed: May 10, 2010
    Publication date: November 18, 2010
    Applicant: CHEMTURA CORPORATION
    Inventors: Larry D. Timberlake, Mark V. Hanson, Narayan Subramaniam, William R. Fielding