Patents Represented by Attorney Joseph Suhadolnik
  • 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
  • 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
  • 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
  • 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
  • Patent number: 7875663
    Abstract: A polyolefin composition which comprises: (a) a polyolefin containing transition metal catalyst residue (excluding metallic co-catalyst residues) at a level below 5 ppm based on the weight of the polyolefin; (b) optionally a first stabilizing component consisting of a phenolic antioxidant or mixture of phenolic antioxidants; (c) optionally a second stabilizing component consisting of a phosphite antioxidant or a mixture of phosphite antioxidants; and (d) a third stabilizing component which acts also as a color suppressant and which is a polyfunctional alcohol, amine or amide or mixtures thereof, with at least one of (b) and (c) present and with the proviso that if the phosphite antioxidant is trilauryl phosphite it must be used in combination with another phosphite. The preferred stabilizing components (b) is 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6 dimethyl,benzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione or mixed tocopherols.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: January 25, 2011
    Assignee: Chemtura Europe GmbH
    Inventors: Klaus Keck-Antoine, Claude Totelin, Bruno Dejolier
  • 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
  • Patent number: 7829511
    Abstract: A stabilized lubricant composition is disclosed that comprises lubricating oil and a mixture of (a) at least one organophosphite compound and (b) at least one aromatic secondary amine or one substituted phenol or mixtures thereof. The compositions have been found to be highly resistant to oxidation under demanding service conditions and to be useful as turbine lubricants.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: November 9, 2010
    Assignee: Chemtura Corporation
    Inventors: Jun Dong, Cyril A. Migdal
  • Patent number: 7825180
    Abstract: A process for lowering the stiffness of filled thermoplastic polymer formulations is disclosed wherein the process comprises including in said formulation a low modulus coupling agent wherein said coupling agent comprises a blend of at least two functionalized polyolefins. Also disclosed is a process for producing soft coupling agents comprising blending at least two functionalized polyolefins in pre-determined ratios, whereby chemical and physical properties of the coupling agents can be controlled.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: November 2, 2010
    Assignee: Chemtura Corporation
    Inventors: Abuzar Syed, John M. Wefer
  • Patent number: 7820764
    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: January 20, 2010
    Date of Patent: October 26, 2010
    Assignee: Chemtura Corporation
    Inventors: Wayne Meyer, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker
  • Patent number: 7816308
    Abstract: Disclosed herein is a composition comprising: A) a lubricant; and B) a mixture of antioxidants, wherein said mixture is prepared by the partial condensation of an alkylated diphenylamine with an aldehyde or ketone in the presence of an acidic catalyst to yield at least one acridan of the general formula: wherein: R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, C3 to C32 alkyl, and C3 to C32 alkenyl, provided that at least one of R1, R2, R3, and R4 is not hydrogen, and R5 and R6 are independently selected from the group consisting of C1 to C20 hydrocarbyl and hydrogen; wherein, at the termination of said condensation, residual alkylated diphenylamine is not separated from the acridan product.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: October 19, 2010
    Assignee: Crompton Corporation
    Inventors: Karl J. Duyck, Theodore E. Nalesnik, John R. Baranski, Cyril A. Migdal, Rebecca F. Seibert
  • Patent number: 7799101
    Abstract: A stabilized lubricant composition is disclosed that comprises lubricating oil and a mixture of (a) at least one organophosphite compound and (b) at least one aromatic secondary amine or one substituted phenol or mixtures thereof. The compositions have been found to be highly resistant to oxidation under demanding service conditions.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: September 21, 2010
    Assignee: Chemtura Corporation
    Inventors: Jun Dong, Cyril A. Migdal
  • Patent number: 7790244
    Abstract: This invention relates to strongly adhering coating compositions comprising at least one copolymer or cooligomer as an adhesion promoter, which copolymer or cooligomer comprises monomer units derived from at least one monomer selected from the group consisting of the acrylate and acrylamide monomers, at least one monomer selected from the group consisting of the amine containing ethylenically unsaturated monomers, at least one monomer selected from the group consisting of ethylenically unsaturated associative monomers and at least one monomer selected from the group consisting of the polyacrylates of polyols. The amine sites of the copolymers or cooligomers are at least partially neutralized with acid prior to film casting the coating formulation.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: September 7, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Howard Roger Dungworth, Andrew John Naisby, John Mark Plonka, Julie Ann List
  • Patent number: 7780857
    Abstract: A method for reducing the halogen off-gassing rate in a solid water treatment halogen-containing composition is provided comprising forming a solid water treatment halogen-containing composition comprising (a) a halogen containing source; (b) a boron-containing source and (c) a polyphosphate-containing source.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: August 24, 2010
    Assignee: Chemtura Corporation
    Inventors: Nidhi Rawat, David F. Purdy, Michael J. Engram
  • Patent number: 7781610
    Abstract: Supported heterogeneous organotin catalysts of the formula X1, X2, or X3: wherein Z is a spacer group; Y is an insoluble phenyl-group containing copolymer; R1, R2, R3, R5, and R6 are independently selected from halogen, alkyl, alkylene, phenyl, vinyl, allyl, naphthyl, aralkyl, and Z; and R4 is alkyl, alkylene, phenyl, vinyl, allyl, naphthyl, or aralkyl.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: August 24, 2010
    Assignee: Chemtura Corporation
    Inventors: Uwe Schneider, Bernard Jousseaume, Karine Darriet, Thierry Toupance
  • Patent number: 7781518
    Abstract: Disclosed herein is a composition comprising an aromatic diamine that is a solid at room temperature and a stabilizing quantity of a hindered amine light stabilizer and its use as a polyurethane curing agent.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: August 24, 2010
    Assignee: Crompton Corporation
    Inventor: Thomas H. Peter
  • Patent number: 7781500
    Abstract: Disclosed herein is a process for preparing a composite material comprising mixing at least one natural fiber, at least one polyolefin resin, and at least one functionalized polyolefin coupling agent to provide said composite material; wherein said functionalized polyolefin coupling agent possesses a molecular weight distribution of greater than 2.5 (Mw/Mn by GPC) and comprises a base polyolefin resin that is grafted with a total of more than about 1 mmole of at least one polar monomer per 100 grams of functionalized polyolefin coupling agent.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: August 24, 2010
    Assignee: Crompton Corporation
    Inventor: William D. Sigworth
  • Patent number: 7776289
    Abstract: A method of producing decabromodiphenyl alkanes includes the steps of charging a reaction vessel with bromine and a bromination catalyst and introducing a diphenyl alkane into the vessel at a location above the level of the charge bromine and catalyst. A dip tube apparatus for introducing the diphenyl alkane includes an inner tube and an outer tube, each of which are disposed above the surface of the bromine reaction vessel. The inner tube is fitted with a plug having an opening. Diphenyl alkane flows through the inner tube, out the opening in the plug, and into the reactor. The outer tube is disposed around and along the inner tube. Reaction mass from the vessel is recirculated from the vessel, through the outer tube and back to the vessel so as to form a curtain of reaction mass around the stream of diphenyl alkane being simultaneously fed into the reaction vessel.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: August 17, 2010
    Assignee: Chemtura Corporation
    Inventors: Stephen B Falloon, Samuel U Mulligan, Donavon M McElveen, Ray W Atwell