Patents Assigned to Union Carbide Chemicals and Plastics Technology Corporation
  • Patent number: 7872198
    Abstract: A cable comprising one or more electrical conductors or communications media or a core of two or more electrical conductors or communications media, each electrical conductor, communications medium, or core being surrounded by a layer comprising: (a) polyethylene; polypropylene; or mixtures thereof; (b) carbon nanotubes; (c) a conductive carbon black other than carbon nanotubes; and (d) optionally, a copolymer of acrylonitrile and butadiene wherein the acrylonitrile is present in an amount of about 30 to about 60 percent by weight based on the weight of the copolymer or a silicone rubber.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: January 18, 2011
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Wei-Kuo Lee, Marios Avgousti, Suh Joon Han
  • Patent number: 7625987
    Abstract: A process for controlling a continuous gas phase exothermic process in a reactor comprising: (i) effecting a gas phase exothermic reaction under a set of operating conditions in the presence of a cooling agent, the cooling agent having a pre-selected concentration and feed rate of an induced cooling agent; (ii) determining a maximum production rate (I) without regard to limitations due to the cooling agent under the operating conditions; (iii) determining a maximum production rate (II) with regard to limitations due to the cooling agent under the operating conditions; (iv) calculating an optimal concentration of the induced cooling agent such that the difference between (I) and (II) is minimized; and (v) adjusting the feed rate of the induced cooling agent to achieve the concentration value calculated in (iv).
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: December 1, 2009
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: John R. Parrish, Glenn A. Lambert, Daniel N. Thomas
  • Patent number: 7601664
    Abstract: A method of making a solid procatalyst composition for use in a Ziegler-Natta olefin polymerization catalyst composition, said method comprising: contacting a precursor composition comprising a magnesium compound with a titanium halide compound and an internal electron donor in any order, in a suitable reaction medium to prepare a solid procatalyst composition, separating the solid procatalyst from the reaction medium, extracting the solid procatalyst composition by contacting the same one or more times with a liquid diluent at an elevated temperature for a period of time sufficient to prepare a solid procatalyst composition having a decreased titanium content compared to the titanium content of the solid procatalyst composition before said extraction, and recovering the solid procatalyst composition.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: October 13, 2009
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Linfeng Chen, Richard A. Kemp, Thomas L. Nemzek
  • Patent number: 7576227
    Abstract: Integrated processes of preparing industrial chemicals starting from seed oil feedstock compositions containing one or more unsaturated fatty acids or unsaturated fatty acid esters, which are essentially free of metathesis catalyst poisons, particularly hydroperoxides; metathesis of the feedstock composition with a lower olefin, such as ethylene, to form a reduced chain olefin, preferably, a reduced chain ?-olefin, and a reduced chain unsaturated acid or ester, preferably, a reduced chain ?,?-unsaturated acid or ester. The reduced chain unsaturated acid or ester may be (trans)esterified to form a polyester polyolefin, which may be epoxidized to form a polyester polyepoxide. The reduced chain unsaturated acid or ester may be hydroformylated with reduction to produce an ?,?-hydroxy acid or ?,?-hydroxy ester, which may be (trans)esterified with a polyol to form an ?,?polyester polyol.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: August 18, 2009
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Zenon Lysenko, Bob R. Maughon, Josef Bicerano, Christopher P. Christenson, Clark H. Cummins, Marvin L. Dettlof, Jerry E. White
  • Patent number: 7569721
    Abstract: This invention relates to a process for conducting equilibrium-limited reactions, such as esterification and alcoholysis reactions, that uses two reaction zones. The first reaction zone operates under reaction conditions that retain at least a portion of the product in a liquid phase, and at least a portion of the liquid from the first reaction zone is introduced into a second reaction zone which operates under conditions sufficient to crack heavies, for example, Michael-addition heavies, formed in or introduced into said second reaction zone and to vaporize at least a portion of the product upon production thereof. Such a process allows for removal of product from the reaction system while catalyst desirably remains in the reaction system.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: August 4, 2009
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventors: Leah A. Patterson, Fungau Nmn Ho
  • Patent number: 7446231
    Abstract: An improved hydroformylation process involving reacting one or more reactants, such as an olefin, with carbon monoxide and hydrogen in the presence of a hydroformylation catalyst, to produce a reaction product fluid comprising one or more products, preferably aldehydes; wherein said process is conducted in a region of the hydroformylation rate curve that is negative or inverse order in carbon monoxide, which is sufficient to prevent and/or lessen deactivation of the hydroformylation catalyst; and wherein total pressure is controlled at a predetermined target value and/or vent flow rate is controlled at a predetermined target value, by adjusting a flow of a carbon-monoxide containing inlet gas, so as to prevent and/or lessen cycling of process parameters, e.g., reaction rate, total pressure, vent flow rate, and/or temperature.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: November 4, 2008
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Ronald R Peterson, Thomas C. Eisenschmid, David R. Bryant, Morteza Mokhtarzadeh
  • Publication number: 20080226918
    Abstract: A cable comprising one or more electrical conductors or communications media or a core of two or more electrical conductors or communications media, each electrical conductor, communications medium, or core being surrounded by a layer comprising: (a) polyethylene; polypropylene; or mixtures thereof; (b) carbon nanotubes; (c) a conductive carbon black other than carbon nanotubes; and (d) optionally, a copolymer of acrylonitrile and butadiene wherein the acrylonitrile is present in an amount of about 30 to about 60 percent by weight based on the weight of the copolymer or a silicone rubber.
    Type: Application
    Filed: April 8, 2008
    Publication date: September 18, 2008
    Applicant: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Wei-Kuo Lee, Marios Avgousti, Suh Joon Han
  • Patent number: 7390970
    Abstract: A cable comprising one or more electrical conductors or communications media or a core of two or more electrical conductors or communications media, each electrical conductor, communications medium, or core being surrounded by a layer comprising: (a) polyethylene; polypropylene; or mixtures thereof; (b) carbon nanotubes; (c) a conductive carbon black other than carbon nanotubes; and (d) optionally, a copolymer of acrylonitrile and butadiene wherein the acrylonitrile is present in an amount of about 30 to about 60 percent by weight based on the weight of the copolymer or a silicone rubber.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: June 24, 2008
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Wei-Kuo Lee, Marios Avgousti, Suh Joon Han
  • Patent number: 7351868
    Abstract: A process for the minimization of phosphonium ion ligand degradation products formed during reaction of a polyunsaturated olefin or an unconjugated functionalized olefin in the presence of a transition metal-triorganophosphine ligand complex catalyst to form as a product, by-product, or intermediate product a conjugated functionalized olefin having a carbon-carbon double bond conjugated to an a-electronwithdrawing group, such as, an a,?-unsaturated aldehyde, ketone, ester, acid, or nitrile. The minimization process involves conducting the reaction under selected conditions of conversion, temperature, pressure, or a combination thereof; and/or by selecting a triorganophosphine ligand with a specified steric and/or electronic property.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: April 1, 2008
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: John R. Briggs, Wei-Jun Peng, Brian M. Roesch, Anthony G. Abatjoglou, Donald L. Morrison
  • Patent number: 7348383
    Abstract: A Ziegler-Natta catalyst composition comprising a solid mixture formed by halogenation of: Al) a spray-dried catalyst precursor comprising the reaction product of a magnesium compound, a non-metallocene titanium compound, and at least one non-metallocene compound of a transition metal other than titanium, with A2) an organoaluminium halide halogenating agent, a method of preparing, precursors for use therein, and olefin polymerization processes using the same.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: March 25, 2008
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventors: Mary T. Zoeckler, Burkhard E. Wagner, Sun-Chueh Kao
  • Publication number: 20080051531
    Abstract: A process for producing polymer particles in a gas phase polymerization reaction using a group 4 metal complex containing at least one cyclic ligand containing delocalized ?-electrons and optionally a flow aid.
    Type: Application
    Filed: September 10, 2007
    Publication date: February 28, 2008
    Applicant: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Xinlai Bai, Maria Apecetche, Kevin Cann, David Ramage, Natarajan Muruganandam, Ardenhu Sen, Matthew Fedec, Woo Song, David Rebhan, Albert Widmar
  • Patent number: 7294729
    Abstract: A novel bis-chelating composition characterized by formula I: wherein M is a Group VB element; R1 and R2 are each independently selected from hydrogen and monovalent hydrocarbyl radicals; or R1 and R2 are bonded together to form a diradical; or one of R1 or R2 is hydrogen or a monovalent hydrocarbyl radical, while the other of R1 or R2 is a hydrocarbyl radical bonded to an atom in Ar; wherein Ar is selected from 1,2-arylenes; Q is selected from 1,2-arylenes, 2,2?-bisarylenes and alkyl diradicals; and W is selected from II, III, IV, or V: wherein M is as defined hereinbefore; each R is independently selected from hydrogen and monovalent hydrocarbyl radicals; X is selected from alkyl and aryl diradicals; Ar1 and Ar2 are each independently selected from 1,2-arylenes;Ar3 and Ar4 are each independently selected from monovalent aryl radicals; and n in formula IV is 0 or 1.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: November 13, 2007
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Wei-Jun Peng, Johnathan E Holladay
  • Patent number: 7265296
    Abstract: The present invention is a flame retardant cable having an insulated conductor and at least two insulation layers. The cable demonstrates a composite dielectric constant less than or equal to about 2.6 and a composite dissipation factor less than or equal to 0.005 even though one of the insulation layers has a dielectric constant greater than 2.6 or a dissipation factor greater than 0.005. The presently invented cable is achieved with a non-halogenated polyolefin as an insulation layer polymer, where the polyolefin having relatively poor dielectric/dissipative properties and the insulation layer composition being substantially free of halogenated or antimony trioxide flame retardant additives.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: September 4, 2007
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Jinder Jow, Jeffrey M. Cogen
  • Patent number: 7202313
    Abstract: A process for polymerizing polyethylene with chromium-based catalysts wherein one or more supported chromium-based catalysts is mixed with mineral oil to form a slurry and the slurry is then introduced into a polymerization reactor, especially a gas-phase polymerization reactor.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: April 10, 2007
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Robert J. Jorgensen, Karen E. Breetz, Jose Fernando Cevallos-Candau, Dale A. Wright, Thomas E. Spriggs
  • Patent number: 7196230
    Abstract: A novel organophosphorus composition and synthesis thereof, the composition being characterized by one phosphite moiety, one phosoxophite moiety, and a plurality of sterically bulky substituents. The novel composition finds utility as a ligand in Group VIII transition metal phosoxophite complex catalysts and complex catalyst precursors that are used in carbonylation processes, preferably, hydroformylation processes. Additionally, there is disclosed a novel method of preparing a phosphoromonochloridite composition that finds utility as a precursor to the novel phosoxophite composition.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: March 27, 2007
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Wei-Jun Peng, David Robert Bryant
  • Patent number: 7166553
    Abstract: A solid, hydrocarbon insoluble catalyst composition comprising: A) a solid, particulated complex comprising moieties of at least magnesium, a Group 4 transition metal, and a halide; B) one or more ?-amino-substituted- or ?-imino-substituted-2-alkylpyridine compounds; C) one or more organoaluminum cocatalyst compounds; D) optionally one or more internal electron donors; and E) optionally one or more selectivity control agents, a method of preparation and a method of use in polymerizing olefins is disclosed.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: January 23, 2007
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Robert C. Job
  • Patent number: 7151155
    Abstract: Disclosed are copolymers of cyclic esters, e.g., caprolactone, and cyclic formals of substituted or unsubstituted diols, e.g., 1,3-dioxepane. The copolymers can provide a low melting temperature rendering them liquids at room temperature. Elastomeric polyurethanes prepared from such copolymers can exhibit a low Tg transition and good resistance to hydrolysis and oxidation. The copolymers are particularly useful for elastomers, coatings, adhesives, inks or binders requiring low temperature flexibility and good resistance to hydrolysis and oxidation.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: December 19, 2006
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Thomas A. Upshaw, Angelo Mellozzi
  • Patent number: 7025938
    Abstract: The partially condensed fluid recycle stream of a fluidized bed polyolefin reactor operating in the condensing mode is split into two portions by a stream splitter. In a preferred mode, the smaller stream from the splitter contains a higher ratio of liquid to gas than the larger stream. One portion of the split stream is injected below the fluidized bed and the other, preferably with enhanced liquid content, is injected into the fluidized bed at a level above the product withdrawal level. Regulation of liquid injection above the product withdrawal level, as a function of liquid in the product discharge tanks, reduces the liquid in the product discharge system, resulting in improved discharge cycle times and more efficient conservation of monomer and other materials which might otherwise be lost in the discharge process.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: April 11, 2006
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Robert Darrell Olson, Timothy Joseph Howley
  • Publication number: 20060041073
    Abstract: A polymer composition comprises a low-molecular-weight (LMW) ethylene polymer component and a high-molecular-weight (HMW) ethylene polymer component. Preferably, the LMW polyethylene component and the HMW polyethylene component co-crystallize in the composition such that it exhibits a single or substantially single peak in a lamella thickness distribution (“LTD”) curve. The ethylene polymer for the LMW and the HMW polyethylene components can be either homopolyethylene or ethylene copolymer. Preferably, both components are an ethylene copolymer of the same or different composition (i.e., with the same or different comonomers). A method of making a pipe that includes selecting a polymer composition having a substantially single peak in the LTD curve is described.
    Type: Application
    Filed: August 12, 2005
    Publication date: February 23, 2006
    Applicant: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Zhiqiang Zhou, William Michie
  • Patent number: 6982304
    Abstract: Polyethylene resins having improved environmental stress crack resistance, stiffness and impact resistance is made by a process comprising feeding both a chromium oxide catalyst and a silyl chromium catalyst into a polymerization reactor. The chromium oxide catalyst and the silyl chromium catalyst are on separate supports. The chromium oxide catalyst is 25–50 weight percent and the silyl chromium catalyst is 50–75 weight percent of the total weight of catalyst. The catalysts may be added separately or as a single mixture.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: January 3, 2006
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Cliff Robert Mure, Guylaine St. Jean, Stephen Paul Jaker, Robert J. Jorgensen, Karen Breetz