Patents Represented by Attorney, Agent or Law Firm P. W. Leuzzi
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Patent number: 6007913Abstract: An article of manufacture comprising (i) a plurality of electrical conductors, each surrounded by one or more layers of a composition comprising (a) one or more polyolefins and, blended therewith, (b) a mixture containing one or more alkylhydroxyphenylalkanoyl hydrazines and one or more defined functionalized hindered amines; and (ii) hydrocarbon cable filler grease within the interstices between said surrounded conductors.Type: GrantFiled: April 17, 1998Date of Patent: December 28, 1999Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Jeffrey Morris Cogen, Michael John Keogh, Geoffrey David Brown
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Patent number: 5981065Abstract: An article of manufacture comprising (i) a plurality of electrical conductors, each surrounded by one or more layers of a mixture comprising one or more polyolefins and the reaction product of (a) a functionalized hindered amine amic acid hydrazide and (b) a functionalized hindered phenol or a functionalized hindered amine hydrazide and (ii) hydrocarbon cable filler grease within the interstices between said surrounded conductors.Type: GrantFiled: May 26, 1992Date of Patent: November 9, 1999Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Michael John Keogh, Geoffrey David Brown
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Patent number: 5972267Abstract: A process comprising the following steps: (a) maintaining the process in an essentially oxygen-free state; (b) introducing a first polymer directly from the polymerization reactor in which it was prepared, in molten form, into a mixer/compounder; (c) reducing any higher pressure accompanying the first polymer from the polymerization reactor to the mixer/compounder to a pressure in the range of about 0 to about 5 barg; (d) adding additives selected from the group consisting of antioxidants, second polymers, other polymer enhancing additives, and mixtures thereof to the mixer/compounder, and mixing same with the molten first polymer; (e) passing the molten mixture from step (d) through one or more screens, each having a maximum opening size of about 25 microns; (f) pelletizing the mixture from step (e); (g) introducing the pellets into a spraying chamber, the interior of said chamber being operated in a static condition; (h) spraying the pellets in the chamber with a crosslinking formulation including an organiType: GrantFiled: March 30, 1998Date of Patent: October 26, 1999Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Alex Kharazi, Neil William Dunchus
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Patent number: 5904422Abstract: A continuous mixing process is disclosed that provides improved dispersive mixing over conventional mixing processes. The process employs squeeze flow motion around a translating member at a Hencky strain greater than 2 and at a rate corresponding to a Deborah Number greater than 10.Type: GrantFiled: August 21, 1997Date of Patent: May 18, 1999Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Stuart Jacob Kurtz
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Patent number: 5756417Abstract: Catalyst compositions for the oligomerization or polymerization of olefinically unsaturated hydrocarbons, comprising a heterocyclopentadienyl of the general formulaC.sub.4 AR.sub.4,wherein A is a Group V element and each R, which is connected to a carbon of the heterocyclopentadienyl ring, can be the same or different and is chosen from hydrogen or an organic substituent (optionally containing one or more heteroatoms), in complex with a Group IV or V metal, and the process of oligomerization or polymerization olefinically unsaturated hydrocarbons in the presence of such catalyst compositions.Type: GrantFiled: January 31, 1997Date of Patent: May 26, 1998Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Eric Johannes Maria De Boer, Henricus Jacobus Robert De Boer, Hero Jan Heeres
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Patent number: 5744556Abstract: A process for the gas-phase polymerization of polymers which allows for the introduction of an unsupported polymerization catalyst system into the gas-phase reactor, wherein the unsupported polymerization catalyst system comprises (i) a non-volatile materials fraction containing a polymerization catalyst; (ii) a solvent fraction which is at least partially miscible with the non-volatile materials fraction and which is sufficiently volatile to allow for the formation of polymerization catalyst particles when the mixture of the solvent fraction and the non-volatile materials fraction is sprayed into the reactor; (iii) a compressed fluid; and (iv) optionally a slowly vaporizing solvent.Type: GrantFiled: September 13, 1996Date of Patent: April 28, 1998Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: George Ernest Keller, Keith Ernest Carmichael, Jean Bowman Cropley, Eldon Ronald Larsen, Arakalud Venkatapathia Ramamurthy, Mark Wilton Smale, Timothy Todd Wenzel, Clark Curtis Williams
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Patent number: 5527752Abstract: A catalyst precursor is provided which is useful, when combined with a cocatalyst, in the manufacture of polyolefins. The catalyst precursor is of the formula: ##STR1## where M is a transition metal, preferably Zr or Hf; L is a substituted or unsubstituted, .pi. bonded ligand coordinated to M, preferably a cyclopentadienyl-type ligand; Q can be the same or different and is independently selected from the group consisting of --O, --NR, --CR.sub.2 and --S; Y is either C or S; Z is selected from the group consisting of --OR, --NR.sub.2, --CR.sub.3, --SR, --SiR.sub.3, --PR.sub.Type: GrantFiled: March 29, 1995Date of Patent: June 18, 1996Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Walter T. Reichle, Frederick J. Karol, Gregory T. Whiteker
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Patent number: 5458474Abstract: A continuous pelletizing system for pelletizing synthetic thermoplastic materials which includes:(1) a melter/mixer for at least partially melting and mixing synthetic thermoplastic material;(2) a gear pump operatively associated with the melter/mixer for increasing pressurization of the melted synthetic thermoplastic material;(3) an independently controlled dispersive mixer operatively associated with said gear pump or the melter/mixer which provides additional independent mixing of the melted synthetic thermoplastic material; and(4) a pelletizer operatively associated with the independently controlled dispersive mixer or the gear pump for forming pellets of synthetic material.Type: GrantFiled: December 16, 1994Date of Patent: October 17, 1995Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Anthony C. Neubauer, Theodore R. Blakeslee, III
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Patent number: 5453471Abstract: A process for producing polymers in a gas phase reactor by continuously introducing a stream of monomer and gas into a polymerization zone while maintaining the temperature within the polymerization zone below the dew point temperature of at least one monomer present in said polymerization zone.Type: GrantFiled: August 2, 1994Date of Patent: September 26, 1995Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Robert J. N. Bernier, Robert L. Boysen, Robert C. Brown, Leonard S. Scarola, Gary H. Williams
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Patent number: 5416175Abstract: A method for reducing sheeting during polymerization of alpha-olefins in a fluidized bed employing catalysts prone to cause sheeting which comprises feeding a material carrying a static electric charge opposite to the static charge in said bed, said opposite charge of said material being generated by passing said material in contact with a surface adapted to impart said static electric charge to said material opposite the charge existing in said bed.Type: GrantFiled: December 17, 1993Date of Patent: May 16, 1995Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Gyung-Ho Song, Fathi D. Hussein, Kiu H. Lee, Henry B. Hinckley
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Patent number: 5166291Abstract: Unsaturated polyester fiber reinforced molding compounds containing low profile additives achieve moldings with improved shrinkage control, improved surface appearance, less separation and lower coefficient of thermal expansion by the addition of lactams.Type: GrantFiled: January 27, 1992Date of Patent: November 24, 1992Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Kenneth E. Atkins, Gary C. Rex
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Patent number: 4780554Abstract: Novel O-silylated ketene acetals and enol ethers are prepared via the 1,4-hydrosilation of a hydrosilation composition selected from the group consisting of aminosilanes, siloxanes and alkylalkoxysilanes with an .alpha.,.beta.-unsaturated carbonyl in the presence of a rhodium catalyst.Type: GrantFiled: June 6, 1985Date of Patent: October 25, 1988Assignee: Union Carbide CorporationInventors: Jennifer M. Quirk, Linda K. Kozak, Bernard Kanner
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Patent number: 4717518Abstract: A process for making molded high resilience polyurethane cellular products which require reduced crushing in preventing the products from substantially shrinking or changing dimensionally upon cooling which comprises: exposing the curing product to atmospheric pressure while in contact with the confines of the mold at a time when the cell walls of the curing polyurethane cellular product have cured sufficiently to develop sufficient strength to partially resist bursting by the pressure of said expansion gases contained within the cell walls upon exposure to atmospheric pressure, but before the cell walls have cured sufficiently to develop sufficient strength so that exposure to atmospheric pressure does not result in a reduction of the crushing force necessary to prevent the products from substantially shrinking or changing dimensionally.Type: GrantFiled: September 20, 1985Date of Patent: January 5, 1988Assignee: Union Carbide CorporationInventor: Keith D. Cavender
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Patent number: 4690955Abstract: This invention describes novel molded flexible polyurethane foam surfactants which can be used in foam having high concentrations of reinforcing graft copolymer solids. The invention also describes the improved process for making these foams using the novel surfactants.Type: GrantFiled: June 30, 1986Date of Patent: September 1, 1987Assignee: Union Carbide CorporationInventors: John A. Kilgour, Michael W. Jorgenson
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Patent number: 4599441Abstract: This invention relates a process for the redistribution/disproportionation of organohalosilanes utilizing copper halide-aluminum halide complex catalysts.Type: GrantFiled: September 30, 1985Date of Patent: July 8, 1986Assignee: Union Carbide CorporationInventors: Bernard Kanner, Kenrick M. Lewis
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Patent number: 4594366Abstract: Connected branch polyols comprising a core segment having a defined molecular weight, one core branch unit directly connected to each end of the core segment, at least one additional branch unit at each end connected directly or indirectly to each core branch unit, and linear polymer segments connected to the branch units are utilized in preparing a wide spectrum of polymer/polyols characterized by superior dispersion stability and viscosity to solids content relationship, the polymer/polyols in turn being employed to prepare polyurethanes having superior performance in flame retardancy tests.Type: GrantFiled: December 7, 1984Date of Patent: June 10, 1986Assignee: Union Carbide CorporationInventors: Glenn A. Taylor, Kenneth L. Hoy
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Patent number: 4585829Abstract: A method of imparting internal mold release properties to reaction injection molding polyurethane compositions by the addition of a perfluoroalkylorganocarboxylic acid or a salt thereof. This invention also relates to the production of novel perfluoroalkylorganodibutyltindioxide compounds which are inherently catalytic and can also impart the property of internal mold releasability to RIM compositions.Type: GrantFiled: May 29, 1984Date of Patent: April 29, 1986Assignee: Union Carbide CorporationInventors: An-Li Kuo, Errol D. Goddard, James S. Ritscher
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Patent number: 4585643Abstract: Chlorosilanes with an enhanced hydrogen content are selectively produced in the direct reaction of silicon with hydrogen chloride at elevated temperatures by treating the silicon with a source of oxygen during the process. A process is also provided for producing selectively trichlorosilane by reacting hydrogen chloride with a fluidized bed of silicon particles and treating the silicon particles with the source of oxygen.Type: GrantFiled: May 31, 1985Date of Patent: April 29, 1986Assignee: Union Carbide CorporationInventor: Thomas H. Barker, Jr.
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Patent number: 4548842Abstract: Fatty ethenoid acylaminoorganosilicon compounds have been found to enhance the surface properties of glass articles. The fatty ethenoid acylaminoorganosilicon compound can be applied as a coating to the glass article's surface either alone or in combination with dispersing agents and organic polymers and/or fatty acids.Type: GrantFiled: December 20, 1983Date of Patent: October 22, 1985Assignee: Union Carbide CorporationInventor: Eric R. Pohl
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Patent number: D357530Type: GrantFiled: December 17, 1993Date of Patent: April 18, 1995Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Mario Grenier, Michel Poirier, Serge Lacombe