Patents Represented by Attorney C. J. Vicari

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  • Method and apparatus for stopping reaction in a gas phase polymerization reactor system
    Patent number: 5270408
    Abstract: A method of terminating, under emergency conditions, an olefin Polymerization reaction conducted in the presence of a transitioned metal based catalyst in a gas phase reactor by using a recycle gas from the reactor or a feed stream to the reactor to operate an expander associated with a circulator which maintains fluidized conditions in the reactor while introducing a kill gas into the reactor to terminate the reaction.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: December 14, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Roy E. Craddock, III, John M. Jenkins, III, Michael T. Tighe
  • Process for producing sticky polymers
    Patent number: 5264506
    Abstract: A process for producing sticky polymers at polymerization reaction temperatures in excess of the softening temperatures of the sticky polymers in a fluidized bed reactor in the presence of an inert particulate material which comprises utilizing as a support material for the catalyst, a support which includes silica having an average particle size of from about 60 to about 200 microns.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: November 23, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Ronald S. Eisinger, Fathi D. Hussein, David N. Edwards, Kiu H. Lee
  • Blown film extrusion
    Patent number: 5258161
    Abstract: A method for producing film having high tensile impact and dart drop properties by introducing a very low density ethylene alpha olefin copolymer having a melt index of less than 0.1 gm/10 min. a melt flow ratio of about 14-18 and a dispersity greater than 10 into a stalk extrusion apparatus and thereafter forming a film from said resin.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: November 2, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: George E. Ealer
  • Process for substantially eliminating surface melt fracture during extrusion of thermoplastic polymers
    Patent number: 5204032
    Abstract: A process for substantially eliminating surface melt fracture during extrusion of a thermoplastic polymer such as a molten narrow molecular weight distribution, linear, ethylene copolymer, by incorporating into the thermoplastic polymer a wood rosin or wood rosin derivative.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: April 20, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Arakalgud V. Ramamurthy, Mahmoud R. Rifi
  • Deactivator reagent for olefin polymerization catalysts
    Patent number: 5200502
    Abstract: A method is disclosed for controlling the activity of or deactivating a transition element olefin polymerization catalyst by contacting the catalyst with a 1,2-diether organic compound.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: April 6, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Sun-Chueh Kao, Frederick J. Karol
  • Process for producing sticky polymers
    Patent number: 5200477
    Abstract: A process for preventing agglomeration of sticky polymers in a polymerization system which comprises adding to said polymerization system about 0.3 to about 80 weight percent based on the weight of the final product of an inert particulate material having an organo-modified polydimethylsiloxane (OM-PDMS) surface coating thereon.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: April 6, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Edgar C. Baker, George N. Foster, Aaron S. Rhee
  • Process for producing sticky polymers
    Patent number: 5194526
    Abstract: An improvement in the process for producing sticky polymers in a fluidized bed reactor catalyzed by a transition metal catalyst in the presence of an inert particulate material prone to generate excessive negative charges in said reactor, by conducting the process in the presence of a composition comprising a mixture of an alcohol phosphate salt and a quarternary ammonium salt, which is dissolved in a suitable solvent.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: March 16, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Fathi D. Hussein, Kiu H. Lee
  • Steam purging of granular EPDM resins
    Patent number: 5191062
    Abstract: A process for substantially removing and recovering unreacted diene monomer from ethylene propylene diene monomer resin produced in a fluidized bed reactor by purging the resin with steam in a purging zone, the resin being introduced in the purging zone at a temperature above the temperature of the steam in the purging zone.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: March 2, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Robert J. Bernier, Duan-Fan Wang
  • Method for producing sticky polymers
    Patent number: 5162463
    Abstract: A method for preventing agglomeration of sticky polymers in a fluidized bed which comprises adding to said fluidized bed and 0.3 to about 80 weight percent based on the weight of the final product of an inert particulate material having a PDMS surface coating thereon.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: November 10, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Edgar C. Baker, George N. Foster, Seung J. Rhee
  • Process for eliminating surface melt fracture during extrusion of thermoplastic polymers
    Patent number: 4948543
    Abstract: A process for substantially eliminating surface melt fracture during extrusion of a thermoplastic polymer such as a molten narrow molecular weight distribution, linear, ethylene copolymer, by using a die having a die land region defining opposing surfaces at least one of which is coated with a composition containing about 80% to 99% nickel and about 1% to 20% phosphorous.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: August 14, 1990
    Assignee: Union Carbide Chemicals and Plastics Company, Inc.
    Inventors: Joseph Z. Pawlowski, Arakalgud V. Ramamurthy
  • Process for reducing draw resonance in polymeric film
    Patent number: 4608221
    Abstract: A process for reducing draw resonance of a polymeric molten film susceptible to draw resonance under conditions which would cause draw resonance by extruding the film from a die and rapidly cooling said film in a rapid cooling zone containing a pressure roll and chill roll by providing a tensioning device between said die and the nip of said pressure and chill roll, said tensioning device providing a substantially friction free surface with respect to said moving film.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: August 26, 1986
    Assignee: Union Carbide Corporation
    Inventors: Stuart J. Kurtz, Ernest H. Roberts, Peter J. Lucchesi
  • Carbamate-sulfenyl-carbamoyl fluoride compounds
    Patent number: 4595769
    Abstract: Carbamate-sulfenyl-carbamoyl fluoride compounds are valuable insecticidal compositions and are also useful intermediates in the production of bis-carbamate compounds.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: June 17, 1986
    Assignee: Union Carbide Corporation
    Inventor: Themistocles D. J. D'Silva
  • Halo-4-alkenoic acids and their use as pesticidal intermediates
    Patent number: 4492799
    Abstract: Novel halo-4-alkenoic acid compounds which are useful intermediates for the synthesis of insecticides and miticides.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: January 8, 1985
    Assignee: Union Carbide Corporation
    Inventor: Thomas N. Wheeler
  • Carbamate-carbamoyl fluoride compounds
    Patent number: 4479002
    Abstract: Carbamate-carbamoyl fluoride compounds are useful intermediates for the production of insecticidal bis-carbamate compounds.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: October 23, 1984
    Assignee: Union Carbide Corporation
    Inventor: Wei C. Liang
  • Amide carbamates and amide oxime compounds
    Patent number: 4454134
    Abstract: Amide oxime compounds are useful intermediates in the preparation of pesticidally active amide carbamate compounds.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: June 12, 1984
    Assignee: Union Carbide Corporation
    Inventor: John A. Durden, Jr.
  • Biocidal sulfur-containing bis-imino carbamate compounds
    Patent number: 4435421
    Abstract: Sulfur-containing bis-amino carbamate compounds exhibit outstanding acaricidal, nematocidal and insecticidal activity.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: March 6, 1984
    Assignee: Union Carbide Corporation
    Inventor: Themistocles D. J. D'Silva
  • Water soluble pesticidal quaternary ammonium salt compounds
    Patent number: 4430341
    Abstract: Water soluble quaternary ammonium salt compounds exhibit outstanding insecticidal and miticidal activity coupled with reduced mammalian toxicity and acceptable phytotoxicity.
    Type: Grant
    Filed: August 24, 1977
    Date of Patent: February 7, 1984
    Assignee: Union Carbide Corporation
    Inventor: Barbara W. Kaplan
  • Biocidal 2-aryl-1, 3-cyclohexanedione enol ester compounds
    Patent number: 4422870
    Abstract: 2-Aryl-1, 3-cyclohexanedione enol ester compounds exhibit outstanding miticidal,mite ovicidal and herbicidal activity.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: December 27, 1983
    Assignee: Union Carbide Corporation
    Inventor: Thomas N. Wheeler
  • O-(2-Aryl-3-oxo-1-cyclohexenyl) phosphates
    Patent number: 4409153
    Abstract: Enol-phosphorous esters of 2-aryl-1,3-cycloalkanedione compounds which exhibit outstanding pesticidal, miticidal, ovicidal and herbicidal activity.
    Type: Grant
    Filed: February 23, 1982
    Date of Patent: October 11, 1983
    Assignee: Union Carbide Corporation
    Inventor: Leonard E. Hodakowski
  • Novel derivatives of bicyclic 2-iminothiazolidine oximes
    Patent number: 4405632
    Abstract: Novel derivatives of bicyclic 2-iminothiazolidine oximes and methods of preparing same. This invention is also directed to an insecticidal composition comprising an acceptable carrier and an insecticidally effective amount of a compound of this invention, as well as to a method of controlling insects which comprises subjecting the insects to an insecticidally effective amount of a compound of this invention.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: September 20, 1983
    Assignee: Union Carbide Corporation
    Inventors: Dean F. Bushey, Themistocles D. J. D'Silva