Patents Assigned to Union Carbide Chemicals & Plastics Technology Corporation
  • Patent number: 6359077
    Abstract: Disclosed is a process making polyolefin pellet products that contain at least one unreacted free radical generator which, when heated, undergo chemical degradation producing a low viscosity polymer. The process includes contacting the polyolefin pellet with the at least one free radical generator to coat the pellet, and contacting the coated pellets and at least one unreacted free radical generator at an elevated temperature and for a period of time sufficient for the free radical initiator to soak into the interior of the pellets. The process of the invention enables the production of polyolefin pellets having any desired amount of free radical generator and therefore, production of a desired viscosity, and improves the processability of the polyolefin pellet at customer fabrication facilities to thereby provide superior quality final articles.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: March 19, 2002
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Marios Avgousti, Alex Kharazi
  • Patent number: 6355748
    Abstract: A catalyst composition for the polymerization of olefins is provided, which comprises the reaction product of a spirocycle, a complex of an atom selected from Groups 3-14 and the Lanthanides, and an activating cocatalyst.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: March 12, 2002
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Timothy Todd Wenzel
  • Patent number: 6350819
    Abstract: This invention relates to dendritic macromolecules and their use in metal-dendritic macroligand complex catalyzed processes, e.g., hydroformylation. The use of metal-dendritic macroligand complex catalysts in such processes facilitates the separation of desired product from catalyst, for example, by membrane filtration.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: February 26, 2002
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Michael Leo Tulchinsky, David James Miller
  • Patent number: 6346599
    Abstract: Lactone copolymers are disclosed which are polymerized from a first lactone monomer and a second amorphous monomer which is effective to suppress the crystallization of the copolymer. It is disclosed that suppression of the crystallization can provide enhanced mechanical properties in films made from the copolymers. As a result, films prepared from the copolymers of the present invention can have properties rendering them suitable for use as biodegradable trash bags as well as for other uses.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: February 12, 2002
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Daniel Goldberg, Sandra A. Kupperblatt, Robert F. Eaton, Wong F Ark, David M Simpson
  • Patent number: 6337059
    Abstract: An absorbent composition for the removal of acid gases, such as CO2, H2S and COS, from gas streams is provided. The absorbent composition comprises an aqueous solution comprising: 1) greater than 1 mole piperazine per liter of aqueous solution; and 2) about 1.5 to about 6 moles methyldiethanolamine per liter of aqueous solution.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: January 8, 2002
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Craig Norman Schubert, Paulino Forte, John Wayne Dean
  • Patent number: 6329447
    Abstract: An alkene copolymer latex composition comprising, (i) an inner particulate material; (ii) an outer copolymer copolymerized from an alkene, a lower vinyl ester and optionally additional monomers, said outer copolymer at least partially encapsulating said inner particulate material; wherein the inner particulate material is effective to enhance the incorporation of the alkene into the copolymer composition; and (iii) water.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: December 11, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Kostas S Avramidis, David R Bassett, Richard D. Jenkins, Chee B Tan
  • Patent number: 6326445
    Abstract: A catalyst composition for the polymerization of olefins is provided, which comprises the reaction product of a fulvene, a complex of an atom selected from Groups 3-14 and the Lanthanides, and an activating cocatalyst.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: December 4, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Timothy Todd Wenzel
  • Patent number: 6322811
    Abstract: Alkylene oxide polymer compositions having particular molecular weight distributions are disclosed. As a result of the molecular weight distributions, the disclosed alkylene oxide polymer compositions are suitable, among other things, for the manufacture of films, e.g., for use in manufacturing soft gel capsules. Capsules made from the disclosed alkylene oxide polymer compositions can provide enhanced resistance to crosslinking often caused by liquid filling materials, e.g., polyethylene glycol, used in gelatin capsule manufacture.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: November 27, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Surendra Kumar Verma, Michael Scott Jarrell
  • Patent number: 6320005
    Abstract: A catalyst precursor having the formula: AqMLn wherein each A has the formula: M is a metal selected from the group consisting of Group 3 to 13 elements and Lanthanide series elements; each L is a monovalent, bivalent, or trivalent anion; X and Y are each heteroatoms; Cyclo is a cyclic moiety; each R1 is a group containing 1 to 50 atoms selected from the group consisting of hydrogen and Group 13 to 17 elements, and two or more adjacent R1 groups may be joined to form a cyclic moiety; each R2 is a group containing 1 to 50 atoms selected from the group consisting of hydrogen and Group 13 to 17 elements, and two or more adjacent R2 groups may be joined to form a cyclic moiety; Q is a bridging group; each m is independently an integer from 0 to 5; n is an integer from 1 to 4; q is 1 or 2; and when q is 2, the A groups are optionally connected by a bridging group Z is provided. The catalyst precursor may be made by reacting an organometal compound with a heteroatom-containing ligand.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: November 20, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Rex Eugene Murray
  • Patent number: 6310260
    Abstract: This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or more unreacted reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, one or more polar solvents and one or more nonpolar solvents by phase separation wherein (i) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5, (ii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: October 30, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: John Nicholas Argyropoulos, Jeffrey Scott Kanel, Michael Leo Tulchinsky, David James Miller, Donald Lee Morrison, Paul Foley, David Robert Bryant, Ailene Gardner Phillips, Brian Michael Roesch, John Robert Briggs, Max Min Lee, John Michael Maher
  • Patent number: 6307109
    Abstract: This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or more nonpolar reaction solvents and one or more polar reaction solvents, in which said reaction product fluid exhibits phase behavior depicted by FIG. 1, wherein said process comprises (1) supplying said reaction product fluid from a reaction zone to a separation zone, (2) controlling concentration of said one or more nonpolar reaction solvents and said one or more polar reaction solvents, temperature and pressure in said separation zone sufficient to obtain by phase separation two immiscible liquid phases depicted by regions 2, 4 and 6 of FIG. 1 comprising a polar phase and a nonpolar phase and to prevent or minimize formation of three immiscible liquid phases depicted by region 5 of FIG. 1 and one homogeneous liquid phase depicted by regions 1, 3 and 7 of FIG.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: October 23, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Jeffrey Scott Kanel, David Robert Bryant, Brian Michael Roesch, Ailene Gardner Phillips
  • Patent number: 6307065
    Abstract: This invention relates in part to processes for producing one or more substituted or unsubstituted epsilon caprolactones and/or hydrates and/or esters thereof which comprise subjecting one or more substituted or unsubstituted penten-1-ols to carbonylation in the presence of a carbonylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, to produce said one or more substituted or unsubstituted epsilon caprolactones and/or hydrates and/or esters thereof. The substituted and unsubstituted epsilon caprolactones and/or hydrates and/or esters thereof produced by the processes of this invention can undergo further reaction(s) to afford desired derivatives thereof, e.g., epsilon caprolactam. This invention also relates in part to reaction mixtures containing one or more substituted or unsubstituted epsilon caprolactones and/or hydrates and/or esters thereof as principal product(s) of reaction.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: October 23, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Erik Bruce Tjaden, John Robert Briggs, Anil Sakharam Guram, John Michael Maher
  • Patent number: 6307110
    Abstract: This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or more unreacted reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, one or more nonpolar solvents and one or more polar solvents by phase separation wherein (i) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1which is a value greater than about 2.5, (ii) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: October 23, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: John Nicholas Argyropoulos, Jeffrey Scott Kanel, Michael Leo Tulchinsky, David James Miller, Donald Lee Morrison, Paul Foley, David Robert Bryant, Ailene Gardner Phillips, Brian Michael Roesch, John Robert Briggs, Max Min Lee, John Michael Maher
  • Patent number: 6306981
    Abstract: A process for the manufacture of olefin polymers in a continuous gas phase polymerization reaction wherein monomer, after passage through the fluidized bed, is cooled to a temperature below its dew point to produce a mixture of cold gas and liquid. All or nearly all of the cold gas is introduced into the bottom of the reactor to serve as the fluidizing gas stream for the fluidized bed. Cold liquid, separated from the mixture, is either injected directly into the peripheral region around the fluidized bed or onto the walls of the expanded section of the reactor to form a liquid film flowing down the wall of the reactor or alternatively, the cold liquid is warmed to form a heated fluid by passing in indirect heat exchange relation with the fluidized bed and is then injected directly into the peripheral region of the fluidized bed or onto the wall of the expanded section of the reactor to form a downward flowing stream of cold liquid.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: October 23, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Robert Cecil Brown, Norman Louis Balmer, Larry Lee Simpson
  • Patent number: 6306933
    Abstract: Slurries of water soluble cellulose ethers are disclosed. The slurries comprise particulate cellulose ethers in an oxygenated, organic carrier which is substantially a non-solvent for the cellulose ethers, a thickening agent and optionally surfactants and other ingredients. The ingredients contained in the slurries are compatible with the ingredients used in the manufacture of latex compositions, e.g., latex paints.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: October 23, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Luiz Roberto Eiger, Emmett Malone Partain, III, Arthur Herbert Marsh
  • Patent number: 6306249
    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 aldehyde and polyol, the hydrophobic components phase-separate and can be removed from the aqueous stream by routine means.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: October 23, 2001
    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
  • Patent number: 6307108
    Abstract: This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreacted unsaturated ester reactants, a metal-organophoshorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, a nonpolar solvent and a polar solvent by phase separation wherein (i) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5 (ii) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: October 23, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: John Nicholas Argyropoulos, Jeffrey Scott Kanel, Michael Leo Tulchinsky, David James Miller, Donald Lee Morrison, Paul Foley, David Robert Bryant
  • Patent number: 6303830
    Abstract: This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreacted unsaturated ester reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, a polar solvent and a nonpolar solvent by phase separation wherein(i) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5, (ii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: October 16, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: John Nicholas Argyropoulos, Jeffrey Scott Kanel, Michael Leo Tulchinsky, David James Miller, Donald Lee Morrison, Paul Foley, David Robert Bryant
  • Patent number: 6303829
    Abstract: This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or more nonpolar reaction solvents and one or more polar reaction solvents, wherein said process comprises (1) subjecting said reaction product fluid to fractional countercurrent extraction with at least two immiscible extraction solvents, said at least two immiscible extraction solvents comprising at least one nonpolar extraction solvent and at least one polar extraction solvent, to obtain a nonpolar phase comprising said metal-organophosphorus ligand complex catalyst, said optionally free organophosphorus ligand, said one or more nonpolar reaction solvents and said at least one nonpolar extraction solvent and a polar phase comprising said one or more products, said one or more polar reaction solvents and said at least one polar extraction solvent, and (2) recovering said polar
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: October 16, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Jeffrey Scott Kanel, John Nicholas Argyropoulos, Ailene Gardner Phillips, Brian Michael Roesch, John Robert Briggs, Max Min Lee, John Michael Maher, David Robert Bryant
  • Patent number: 6300429
    Abstract: A falling film of water is applied around the periphery of a fluid bed olefin polymerization reactor to cool the wall and reduce the temperature in the fluid bed near the inside surface of the wall. Cooling has the effect of reducing static in the reactor, which in turn ameliorates a sheeting problem and can enhance production by facilitating control of the relation of the reactor temperature and the dew point of recycled gas. The process may be used concurrently with a gas cooling and condensing recycle system wherein at least some of the condensed recycle gas is injected in the vicinity of the internal wall surface.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: October 9, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Thomas Edward Spriggs, James Laurence Riley, Jr., James Daniel Madden, George William Schwarz, Jr., Mark Gregory Goode