Patents Assigned to Union Carbide Chemicals and Plastics Technology Corporation
  • Process of making aircraft deicing/anti-icing fluids thickened by associative polymers
    Patent number: 5863973
    Abstract: A glycol- and/or glycerin-based "universal" aircraft fluid (i.e., usable as any of Type I, II, III, or IV fluids), and having good resistance to degradation of viscosity and other critical properties caused by exposure to heat and/or shear, is disclosed. The fluid may optionally be prepared as a concentrate, and thereafter significantly diluted in the field for diverse uses. The improved performance is achieved by neutralizing a latex of a hydrophobe-containing, polymeric thickener with a base, preferably an alkali metal hydroxide, and preferably in combination with a weak base, such as a salt of a weak acid, and a surfactant which associates with the thickener.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: January 26, 1999
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Charles Hobert Carder, Daniel Christopher Garska, Richard Duane Jenkins, Mark Joseph McGuiness
  • Catalysts comprising substantially pure alpha-alumina carrier for treating exhaust gases
    Patent number: 5856263
    Abstract: This invention is directed to an improved exhaust gas catalyst for the combustion of gaseous waste products from internal combustion engines, particularly automobiles, and industrial stationary source engines along with a method of making the same. The exhaust gas catalyst comprises a substantially pure alpha-alumina carrier and at least one noble metal selected from platinum, palladium and mixtures thereof, and has excellent stability over long-term use.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: January 5, 1999
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Madan Mohan Bhasin, Michael Scott Jarrell
  • Low pressure molding compositions
    Patent number: 5853645
    Abstract: Improved low pressure molding compositions are disclosed which comprise an unsaturated thermosetting resin, an olefinically unsaturated monomer copolymerizable with the thermosetting resin, a viscosity reducing additive, a thermoplastic additive and a thickener comprising one or more alkaline earth metal oxides or hydroxides which can provide the molding compositions with viscosities of less than 25 MMcps after aging.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: December 29, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Robert Lawrence Seats, Kenneth Earl Atkins, Carroll Glenn Reid
  • Catalyst for the production of olefin polymers
    Patent number: 5852146
    Abstract: A catalyst composition for the polymerization of olefins is provided, comprising a bis(hydroxy aromatic nitrogen ligand) transition metal catalyst precursor and an activating cocatalyst.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: December 22, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Walter Thomas Reichle, Frederick John Karol
  • Ketone-based surfactant and method for treating industrial, commercial, and institutional waste-water
    Patent number: 5851434
    Abstract: A nonionic surfactant having cyclic 1,3-dioxane and/or 1,3-dioxolane functionality which is irreversibly splittable by lowering the pH of its aqueous solution is useful in various processes requiring the removal of emulsified hydrophobic contaminants or other hydrophobic materials from an aqueous stream. After splitting of the surfactant into its component ketone and polyol, the hydrophobic components phase-separate and can be removed from the aqueous stream by routine means.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: December 22, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Denise Christine Galante, Richard Charles Hoy, Albert Ferris Joseph, Stephen Wayne King, Charles Arnold Smith, Cheryl Marie Wizda
  • Production of polyethylene using stereoisomeric metallocenes
    Patent number: 5852143
    Abstract: Polyethylene having a broad molecular weight distribution, a narrow comonomer distribution and excellent processability is easily and cost effectively made using stereoisomeric mixtures of bridged metallocene catalysts containing cycloalkadienyl ligands with facial chirality.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: December 22, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Purna Chand Sishta, Eric Paul Wasserman, Frederick John Karol
  • Method for decolorization of alkanolamines and alkyleneamines
    Patent number: 5847221
    Abstract: Color-containing alkanolamines or alkyleneamines, having color numbers of up to 100 PtCo or higher, can be treated with polymeric solid acidic catalysts at elevated temperatures. Perfluorinated ion-exchange polymers in the acid form may be used as the polymeric solid acidic catalyst. In the presence of added water, these polymeric solid acidic catalysts produce decolorized alkanolamines or alkyleneamines having color numbers of 20 PtCo or less. The process of decolorization can be carried out in batch or continuous mode processes thus providing low cost, high quality and high purity end products.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: December 8, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Charles Arnold Gibson
  • Tree resistant cable
    Patent number: 5837939
    Abstract: A cable having one or more electrical conductors or a core of electrical conductors, each electrical conductor or core being surrounded by an insulating composition, essentially free from water tree growth inhibitors, having(i) a polyethylene having a density in the range of 0.860 to 0.940 gram per cubic centimeter; and, based on 100 parts by weight of component (i),(ii) about 0.2 to about 1 part by weight of a homopolymer of propylenewith the proviso that the insulating composition is extruded at a temperature below the melting point of the homopolymer of propylene.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: November 17, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Gary S. Cieloszyk, Jinder Jow
  • Gas phase polymerization process
    Patent number: 5834571
    Abstract: A process for producing polymer in a gas phase reactor by introducing a stream of monomer and gas into a polymerization zone while providing at least one liquid component in the polymerization zone.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: November 10, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Robert Joseph Noel Bernier, Robert Lorenz Boysen, Robert Cecil Brown, Mark Gregory Goode, John Henry Moorhouse, Robert Darrell Olson, Leonard Sebastian Scarola, Thomas Edward Spriggs, Duan-Fan Wang, Gary Harry Williams
  • Processes for producing hydroxyaldehydes
    Patent number: 5817883
    Abstract: This invention relates in part to processes for producing one or more substituted or unsubstituted hydroxyaldehydes, e.g., 6-hydroxyhexanals, which comprise subjecting one or more substituted or unsubstituted alkadienes, e.g., butadiene, to hydrocarbonylation in the presence of a hydrocarbonylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, and hydroformylation in the presence of a hydroformylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, to produce one or more substituted or unsubstituted hydroxyaldehydes. The substituted and unsubstituted hydroxyaldehydes produced by the processes of this invention can undergo further reaction(s) to afford desired derivatives thereof, e.g., epsilon caprolactone. This invention also relates in part to reaction mixtures containing one or more substituted or unsubstituted hydroxyaldehydes as principal product(s) of reaction.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: October 6, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: John Robert Briggs, Kurt Damar Olson, Erik Bruce Tjaden, Anil Sakharam Guram, Diane Lee Packett, Thomas Carl Eisenschmid, Elaine Susan Brigham
  • Anti-yellowing molding compositions
    Patent number: 5811478
    Abstract: Molding compositions comprising certain epoxy compounds, at least one antioxidant, an unsaturated thermosetting resin and an olefinically unsaturated monomer are disclosed. The disclosed compositions can provide enhanced yellowing resistance to articles molded from the compositions, particularly when the molding compositions contain white pigment. Processes from molding articles having enhanced yellowing resistance are also disclosed.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: September 22, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Gary Charles Rex, Kenneth Earl Atkins
  • Telephone cables
    Patent number: 5807635
    Abstract: A cable construction comprises the following components: (i) a plurality of insulated electrical conductors having interstices therebetween, said insulation comprising (a) one or more polyolefins selected from the group consisting of polyethylene, polypropylene, and mixtures thereof, and, blended therewith, (b) a mixture containing one or more alkylhydroxy-phenylalkanoyl hydrazines and one or two functionalized hindered amines; (ii) hydrocarbon cable filler grease within the interstices; and (iii) a sheath surrounding components (i) and (ii) wherein said hindered amines have the following structural formulae: ##STR1## wherein n is about 2 to about 12; R is CxHyOz wherein x is about 2 to about 6, y is about 4 to about 16, and z is zero to about 3; ##STR2## wherein m is about 2 to about 30; n is about 2 to about 30; and x is about 1 to about 30; or ##STR3## wherein n is about 2 to about 20.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: September 15, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Jeffrey Morris Cogen, Michael John Keogh, Geoffrey David Brown
  • Distortion control additives for ultraviolet-curable compositions
    Patent number: 5801392
    Abstract: Distortion control additives are disclosed which comprise a polyisocyanate, a polyol or polyol blend having a hydroxyl functionality of 2 to 3 hydroxyl groups per molecule and an average molecular weight of at least about 500 grams per gram mole, a diol chain extender having from about 2 to 35 carbon atoms per molecule and an acrylate or methacrylate having an acrylate functionality of from 1 to 5 acrylate groups per molecule. Ultraviolet-curable liquid compositions comprising an unsaturated polymeric resin, a monomer and the distortion control additives of the present invention are also disclosed. The distortion control additives can provide substantial reductions in distortion, e.g., shrinkage, of objects produced by ultraviolet curing, eg., stereolithography.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: September 1, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Gary Charles Rex
  • Ethylene polymers having enhanced processability
    Patent number: 5798427
    Abstract: An ethylene polymer having a Polydispersity Index of at least about 3.0, a melt index, MI, and a Relaxation Spectrum Index, RSI, such that (RSI)(MI.sup..alpha.) is greater than about 26 when .alpha. is about 0.7, and a Crystallizable Chain Length Distribution Index, L.sub.w /L.sub.n, less than about 3 is provided. Such ethylene polymer has processability equivalent or superior to even conventional high pressure polyethylene at similar melt index, yet need not be made under high pressure reaction conditions.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: August 25, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: George Norris Foster, Tong Chen, Scott Hanley Wasserman, Day-Chyuan Lee, Stuart Jacob Kurtz, Laurence Herbert Gross, Robert Harold Vogel
  • Metal-ligand complex catalyzed processes
    Patent number: 5789625
    Abstract: This invention relates to a process for separating one or more phosphorus acidic compounds from a reaction product fluid containing said one or more phosphorus acidic compounds, a metal-organophosphite ligand complex catalyst and optionally free organophosphite ligand which process comprises (a) treating said reaction product fluid with water sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said reaction product fluid and (b) treating the water which contains phosphorus acidic compounds removed from said reaction product fluid with an acid removal substance sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said water.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: August 4, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: David Robert Bryant, James Clair Nicholson
  • Metal-ligand complex catalyzed processes
    Patent number: 5786517
    Abstract: This invention relates to a process for separating one or more phosphorus acidic compounds from a reaction product fluid containing said one or more phosphorus acidic compounds, a metal-organophosphite ligand complex catalyst and optionally free organophosphite ligand which process comprises treating said reaction product fluid with water sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said reaction product fluid.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: July 28, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: David Robert Bryant, James Clair Nicholson
  • Non-sticky prepolymerized catalyst, and use thereof in production of non-sticky resin
    Patent number: 5783645
    Abstract: A colorable resin particle having an outer shell of a non-sticky polymer and an inner core of a sticky polymer produced in a gas phase fluidized bed reactor at or above the sticking temperature of the sticky polymer using a non-sticky prepolymerized catalyst and processes for producing the colorable resin and the non-sticky prepolymerized catalyst.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: July 21, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Edgar Chapman Baker, Jose Fernando Cevallos-Candau, Eric Allan Lucas, John Gregory Victor, Allan Noshay
  • Telephone cables
    Patent number: 5766761
    Abstract: A cable construction comprising the following components: (i) a plurality of insulated electrical conductors having interstices therebetween, said insulation comprising (a) one or more polyolefins selected from the group consisting of polyethylene, polypropylene, and mixtures thereof, and, blended therewith, (b) a mixture containing one or more alkylhydroxy-phenylalkanoyl hydrazines and one or two functionalized hindered amines; (ii) hydrocarbon cable filler grease within the interstices; and (iii) a sheath surrounding components (i) and (ii) wherein said hindered amines have the following structural formulae in which n is about 2 to about 10: ##STR1##
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: June 16, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Jeffrey Morris Cogen, Michael John Keogh, Geoffrey David Brown
  • Metal-ligand complex catalyzed processes
    Patent number: 5767321
    Abstract: This invention relates to a process which comprises reacting one or more reactants in the presence of a metal-organopolyphosphite ligand complex catalyst to produce a reaction product fluid comprising one or more products, wherein said process is conducted at a free organopolyphosphite ligand concentration sufficient to prevent and/or lessen hydrolytic degradation of the organopolyphosphite ligand and deactivation of the metal-organopolyphosphite ligand complex catalyst.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: June 16, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Ernst Billig, David Robert Bryant
  • Hydroformylation processes
    Patent number: 5763670
    Abstract: This invention relates to a hydroformylation process which comprises reacting one or more olefinic unsaturated compounds with carbon monoxide and hydrogen in the presence of a metal-organopolyphosphite ligand complex catalyst to produce a reaction product fluid comprising one or more aldehydes, wherein said hydroformylation process is conducted at a free organopolyphosphite ligand concentration sufficient to prevent and/or lessen hydrolytic degradation of the organopolyphosphite ligand and deactivation of the metal-organopolyphosphite ligand complex catalyst.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: June 9, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Ernst Billig, David Robert Bryant