Patents Represented by Attorney Tenley R. Krueger
  • Patent number: 7943545
    Abstract: A polyethylene may be prepared using a mixture of a silica supported catalyst and a magnesium chloride supported catalyst. By changing the ratio of the two catalysts, the polyethylene produced may have a varying bulk density and shear response. The method allows for the tuning or targeting of properties to fit a specific application, such as a blow molding or vapor barrier film.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: May 17, 2011
    Assignee: Fina Technology, Inc.
    Inventors: Vincent Barre, Kayo Vizzini, Steven Gray
  • Patent number: 7932331
    Abstract: The present invention discloses active oligomerization or polymerization catalyst systems based on imino-quinolinol complexes.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: April 26, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Caroline Hillairet, Guillaume Michaud, Sabine Sirol
  • Patent number: 7915342
    Abstract: A polymeric composition having a MFR of less than 2 g/10 min. which when formed into a film has an oxygen transmission rate of equal to or greater than 300 cc/100 in2/24 h at 73° F. and 0% relative humidity per ASTM D 3895 and a water vapor transmission rate of equal to or greater than 0.5 g/100 in2/24 hrs at 100° F. and 100% relative humidity per ASTM F 1249. A polymeric film having a 2% secant modulus in the machine direction of 300 MPa to 700 MPa; an oxygen transmission rate of greater than 300 cc/100 in2/24 h at 100° F., a water vapor transmission rate of greater than 0.5 g/100 in2/24 hrs at 100° F. and 100% relative humidity; an Elmendorf tear strength in the MD of from 50 g to 400 g; an Elmendorf tear strength in the transverse direction of from 150 g to 400 g, a dart drop strength of from 200 g to about 500 g, a haze of from 0% to 85% and, gloss at 45° of from 5% to 70%.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: March 29, 2011
    Assignee: Fina Techology, Inc.
    Inventors: Juan J. Aguirre, Mark B. Miller, David L. Turner
  • Patent number: 7906597
    Abstract: The present invention relates to an apparatus for preparing and supplying catalyst to an ethylene slurry loop polymerisation reactor and to an apparatus for controlling the injection of catalyst slurry in a polymerization reactor wherein polyethylene is prepared. The present invention a Iso relates to a method for optimising catalyst supply to a polymerisation reactor. The diluted catalyst is transferred to the reactor (1) using a membrane pump (5) controllable in function of the concentration of a reactant in said reactor (1).
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: March 15, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Louis Fouarge
  • Patent number: 7902306
    Abstract: Methods for polymerization of an olefin monomer and polymers formed therefrom are described herein.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: March 8, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Giacomo Conti
  • Patent number: 7902325
    Abstract: Polymerization processes are described herein. The polymerization processes generally include introducing a catalyst system to a reaction zone, introducing an olefin monomer to the reaction zone, contacting the olefin monomer with the catalyst system to form a polyolefin and contacting the polyolefin with a quench agent, wherein the quench agent is at least partially soluble in the olefin monomer.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: March 8, 2011
    Assignee: Fina Technology, Inc.
    Inventors: Kenneth P. Blackmon, Mark C. Douglass, Kevin P. McGovern, Mark Miller, Joseph D. Thorman
  • Patent number: 7904271
    Abstract: The present invention relates to a method for determining activity of a catalyst in a polymerization process, said polymerization process comprising the steps of feeding a catalyst and a diluent into a storage vessel, to form a concentrated settled catalyst, feeding said concentrated settled catalyst into a mixing vessel equipped with mixing means and feeding hydrocarbon diluent into said mixing vessel, to form a diluted catalyst slurry, feeding said diluted catalyst slurry into a polymerization reactor via a volumetric pump, and feeding at least one monomer into said polymerization reactor to form a polymer.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: March 8, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Daniel Siraux, Alain Brusselle
  • Patent number: 7902307
    Abstract: The present invention relates to a polymerization process for producing olefin polymers in a loop reactor comprising the steps of: introducing into the loop reactor one or more olefin reactants, polymerization catalysts and diluents, and while circulating said reactants, catalysts and diluents, polymerizing said one or more olefin reactants to produce a polymer slurry comprising essentially liquid diluent and solid olefin polymer particles, said process further comprising one or more cycles of: (a) allowing said polymer slurry to settle in one or more setting legs connected to said reactor, and (b) discharging from a setting leg a predetermined volume of polymer slurry substantially equal to the volume of polymer slurry settled in said settling leg since its previous discharge.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: March 8, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Andre Lewalle
  • Patent number: 7893181
    Abstract: A polymer, and a process of producing the polymer, that comprises at least one olefin and has a density of 0.955 g/cc to 0.959 g/cc and a secant modulus 140,000 psi to 220,000 psi. A film that comprises the polymer, that has a thickness of 0.5 mil to 10 mil, a drop dart impact of 10 g to 200 g, a tear strength of 10 to 1200 g and a secant modulus of 140,000 psi to 220,000 psi.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: February 22, 2011
    Assignee: Fina Technology, Inc.
    Inventors: Gerhard Guenther, Curtis D. Clark
  • Patent number: 7893171
    Abstract: A polymeric composition comprising a polymer and a nucleation agent, and having isotropic shrinkage of less than about 20% and a differential shrinkage of less than about 20%.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: February 22, 2011
    Assignee: Fina Technology, Inc.
    Inventors: Dang Le, Jerome Thierry-Mieg, Douglas Burmaster, Fengkui Li
  • Patent number: 7892614
    Abstract: The invention relates to a process for producing polyethylene aseptic squeezable pouches. The invention also covers said pouches and their use for medical packaging applications.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: February 22, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Fabienne Radermacher
  • Patent number: 7892475
    Abstract: It has been discovered that the properties of sheet or film materials of broad molecular weight distribution ethylene/propylene rubber impact-modified heterophasic copolymer (ICP) can be improved by blending the ICP with a second polyolefin. The second polyolefin may be a syndiotactic polypropylene (sPP), a random copolymer (RCP) of propylene and comonomer (e.g. ethylene and/or butene) made using a Ziegler-Natta or metallocene catalyst, medium density polyethylene (MDPE), linear low density polyethylene (LLDPE), or low crystalline copolymer of propylene/?-olefin. Improvements include, but are not necessarily limited to, reduced motor amps, lower secant modulus, increased dart drop strength, increased gloss, reduced haze, increased elongation to yield, elimination of stress whitening, improved puncture resistance, and decreased seal initiation temperature. This sheet of film materials may be co-extruded with other resins or laminated with other materials after extrusion.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: February 22, 2011
    Assignee: Fina Technology, Inc.
    Inventors: Juan Jose Aguirre, Michael McLeod, Rodolfo Mier, Nguong van Nguyen
  • Patent number: 7868106
    Abstract: This invention discloses caps and closures for carbonated drinks produced by injection moulding or by compression moulding with a bimodal high density polyethylene (HDPE) resin.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: January 11, 2011
    Assignee: Total Petrochemicals Research
    Inventors: Vincent Stephenne, Eric Maziers, Olivier Miserque, Martine Slawinski
  • Patent number: 7863366
    Abstract: Processes for preparing reinforced polymeric material and the materials formed therefrom are discussed herein. The processes generally include providing a polymeric matrix, providing single-wall carbon nanotubes (SWNT) or multiple-wall carbon nanotubes (MWNT), purifying by the nanotubes in a single step of dissolving a support and catalyst particles with an agent appropriate to the nature of the support to form a purified support, functionalising the purified support by reaction with an alkylamine to form a functionalized support, dispersing the nanotubes in the polymeric matrix by mixing in the molten state to form a mixture and optionally orienting the mixture by stretching.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: January 4, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Marc Dupire, Janos Nagy, Jacques Michel, Christophe Pirlot
  • Patent number: 7861410
    Abstract: A method is provided for perforating a steel plate, forming a devolatilizer nozzle from the steel plate, and heat treating the devolatilizer nozzle. The devolatilizer nozzle may have a yield strength of at least about 110 ksi, and a tensile strength of at least about 140 ksi. The perforations in the steel plate are holes in the nozzle and may be no more than about 0.05 inches in diameter. The thickness of the steel plate may be from about 0 to about 0.75 inches. The nozzle may include at least about 500,000 perforations where the center-to-center hole distance may be at least about 0.08 inches. The capacity of the devolatilizer nozzle may be from about 0 to about 75,000 pounds per hour.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: January 4, 2011
    Assignee: Fina Technology, Inc.
    Inventors: Carlos R. Corleto, Jose M. Sosa
  • Patent number: 7851395
    Abstract: This invention relates to an improved method for improving the tacticity of Ziegler-Natta catalyst systems and for controlling the behaviour of the active stereospecific sites.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: December 14, 2010
    Assignee: Total Petrochemicals Research Feluy
    Inventors: David Ribour, Roger Spitz, Jerome Gromada
  • Patent number: 7851578
    Abstract: It has been discovered that using n-butylmethyldimethoxysilane (BMDS) as an external electron donor for succinate-containing Ziegler-Natta catalysts can provide a catalyst system that may prepare polypropylene films with improved properties. The catalyst systems of the invention provide for controlled chain defects/defect distribution and thus a regulated microtacticity along with broadened molecular weight distribution.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: December 14, 2010
    Assignee: Fina Technology, Inc.
    Inventors: Kenneth P. Blackmon, Joseph L. Thorman, Shabbir Ahmedbhai Malbari, Michael Wallace
  • Patent number: 7851400
    Abstract: The present invention concerns a catalyst for the production of high density polyethylene, by homopolymerising ethylene or copolymerising ethylene and an alpha-olefinic comonomer comprising 3 to 10 carbon atoms, prepared by the steps of: a) selecting a silica support with a specific surface area larger than 300 m2/g; b) treating the silica support with a titanium compound, in order to introduce titanium into the support, or with an aluminium compound, in order to introduce aluminum into the support; c) either treating the titanated silica support with an aluminum compound, in order to introduce aluminum into the titanated silica support, or treating the aluminated silica support with a titanium compound, in order to introduce titanium into the aluminated silica support; d) depositing a chromium compound on the titanated and aluminated silica support to form a catalyst; e) activating the catalyst of step d) under air in a fluidised bed at a temperature of from 600 to 800° C.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: December 14, 2010
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Philippe Bodart, Nicodeme Lonfils, Guy Debras
  • Patent number: 7851566
    Abstract: The present invention describes a reactor comprising two interconnected loops wherein the growing polymer flows continuously in circuit from the first loop to the second loop through a First pipe and back to the first loop through a second pipe. It also discloses process for polymerising olefins in two interconnected loop reactors.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: December 14, 2010
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Eric Damme
  • Patent number: 7847042
    Abstract: The invention discloses a metallocene catalysed slurry polymerisation process of ethylene in the presence of a low concentration of scavenger. This allows improving the anti-sheeting of the reactor during the polymerisation process.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: December 7, 2010
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Olivier Miserque, Martine Slawinski, Daniel Siraux, Alain Brusselle