Patents Assigned to Univation Technologies, LLC
  • CHROMIUM-BASED CATALYST COMPOSITIONS FOR OLEFIN POLYMERIZATION
    Publication number: 20170327609
    Abstract: Modified chromium-based catalyst compositions for olefin polymerization are disclosed. The modifiers prevent or reduce catalyst particle aggregation providing improved catalyst particle dispersion and consistent flow index response of the compositions in olefin polymerization.
    Type: Application
    Filed: November 23, 2015
    Publication date: November 16, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Kevin J. Cann, John H. Moorhouse, Parul A. Khokhani, Tomas T. Tamargo, Kevin R. Gross, Mark G. Goode
  • Systems and Methods for Measuring Particle Accumulation on Reactor Surfaces
    Publication number: 20170320034
    Abstract: Systems and methods for monitoring a particle/fluid mixture are provided. The method can include flowing a mixture comprising charged particles and a fluid past a particle accumulation probe. The method can also include measuring electrical signals detected by the probe as some charged particles pass the probe without contacting the probe while other charged particles contact the probe. The measured electrical signals can be manipulated to provide an output. The method can also include determining from the output if the charged particles contacting the probe have, on average, a different charge than the charged particles that pass the probe without contacting the probe.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 9, 2017
    Applicant: Univation Technologies, LLC
    Inventor: Eric J. Markel
  • Feeding polymerization additives to polymerization processes
    Patent number: 9809656
    Abstract: Processes for making and using a viscosified liquid slurry polymerization additive are disclosed herein. The process for making a viscosified liquid slurry polymerization additive comprises contacting a polymerization additive with a liquid to form a liquid slurry polymerization additive, and shearing the liquid slurry polymerization additive to increase its viscosity and thus form the viscosified liquid slurry polymerization additive. The process for using a viscosified liquid slurry polymerization additive comprises contacting, under polymerization conditions, in a reactor system: a catalyst system, one or more monomers, and at least one viscosified liquid slurry polymerization additive.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: November 7, 2017
    Assignee: Univation Technologies, LLC
    Inventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo
  • Producing polyolefin products
    Patent number: 9809667
    Abstract: Catalyst systems and methods for making and using the same. A method of polymerizing olefins to produce a polyolefin polymer with a multimodal composition distribution, includes contacting ethylene and a comonomer with a catalyst system. The catalyst system includes a first catalyst compound and a second catalyst compound that are co-supported to form a commonly supported catalyst system. The first catalyst compound includes a compound with the general formula (C5HaR1b)(C5HcR2d)HfX2. The second catalyst compound includes at least one of the following general formulas: In both catalyst systems, the R groups can be independently selected from any number of substituents, including, for example, H, a hydrocarbyl group, a substituted hydrocarbyl group, or a heteroatom group, among others.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: November 7, 2017
    Assignee: Univation Technologies, LLC
    Inventors: Ching-Tai Lue, Francis C. Rix, C. Jeff Harlan, Laughlin G. McCullough
  • CATALYST ACTIVATORS, METHODS OF PREPARATION AND USE IN POLYMERIZATION PROCESSES
    Publication number: 20170291973
    Abstract: Catalyst activators and methods for their preparation and their use in processes for polymerizing olefms are described. In particular, catalyst activators derived from aluminum alkyls and their use with metallocene type catalyst systems and/or conventional-type transition metal catalyst systems are described.
    Type: Application
    Filed: August 26, 2015
    Publication date: October 12, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Ian M. Munro, Kevin J. Cann
  • POLYOLEFIN PRODUCTION WITH CHROMIUM-BASED CATALYSTS
    Publication number: 20170274356
    Abstract: A method including contacting a chromium-based catalyst with a reducing agent in a solvent to lower an oxidation state of at least some chromium in the chromium-based catalyst to give a reduced chromium-based catalyst, drying the reduced chromium-based catalyst at a temperature, and adjusting the temperature to affect the flow index response of the reduced chromium-based catalyst.
    Type: Application
    Filed: September 1, 2015
    Publication date: September 28, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Kevin J. Cann, Mark G. Goode, Kevin R. Gross, John H. Moorhouse
  • SYSTEMS AND METHODS USING AN INSERT ASSEMBLY WITH STACKED GAS FLOW GAPS
    Publication number: 20170259235
    Abstract: Disclosed are insert assemblies with stacked gas flow gaps to add and/or remove gases from a solid/gas mixture travelling through a barrier. An example system may comprise a barrier and an insert assembly in the barrier defining an annulus between the insert assembly and the barrier, wherein the insert assembly comprises stacked flow gaps configured for addition and/or removal of gas from a solid/gas mixture flowing in the annulus.
    Type: Application
    Filed: March 10, 2015
    Publication date: September 14, 2017
    Applicant: Univation Technologies, LLC
    Inventors: William R. PECKOL, Donald A. FISCHER
  • METHODS OF CONTROLLING POLYOLEFIN MELT INDEX
    Publication number: 20170259236
    Abstract: The use of induced condensing agent (ICA) in fluidized bed gas phase reactor systems enables higher production rates but can affect the resulting polyolefins melt index. The effect the increased ICA concentration may have on a melt index may be counteracted, if necessary, by altering the concentration of olefin monomer within the reactor system.
    Type: Application
    Filed: November 24, 2015
    Publication date: September 14, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Bruce J. Savatsky, Natarajan Muruganandam, Timothy R. Lynn, James M. Farley, Daniel P. Zilker, Jr., Fathi David Hussein
  • FLUORINATED CATALYST SUPPORTS AND CATALYST SYSTEMS
    Publication number: 20170260306
    Abstract: Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed while maintaining a flow rate of a fluidizing gas of about 0.1 ft./sec at less than about 370° C. and greater than about 0.35 ft./sec at temperatures greater than about 370° C. The mixture is calcined to decompose the fluoride donor, forming a fluorinated support.
    Type: Application
    Filed: August 19, 2014
    Publication date: September 14, 2017
    Applicant: Univation Technologies, LLC
    Inventors: John H. Moorhouse, Kevin J. Cann, Phuong A. Cao, Mark G. Goode, C. Jeff Harlan, Wesley R. Mariott
  • FLUORINATED CATALYST SUPPORTS AND CATALYST SYSTEMS
    Publication number: 20170247482
    Abstract: Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed while maintaining a ratio of a pressure drop across a distributor plate to a pressure drop across the fluidized bed of greater than about 7%. The mixture is calcined to decompose the fluoride donor, forming a fluorinated support.
    Type: Application
    Filed: August 19, 2014
    Publication date: August 31, 2017
    Applicant: Univation Technologies, LLC
    Inventors: John H. Moorhouse, Kevin J. Cann, Phuong A. Cao, Mark G. Goode, C. Jeff Harlan, Wesley R. Mariott
  • CONTINUITY COMPOSITIONS AND METHODS OF MAKING AND USING THE SAME
    Publication number: 20170240674
    Abstract: Continuity compositions are provided as are methods of their preparation. The compositions comprise metal carboxylate salts and fatty amines and find advantageous use in olefin polymerization processes.
    Type: Application
    Filed: May 4, 2017
    Publication date: August 24, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, Fathi David Hussein, Phuong A. Cao, Wesley R. Mariott, Michael D. Awe
  • FLUORINATED CATALYST SUPPORTS AND CATALYST SYSTEMS
    Publication number: 20170233506
    Abstract: Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed with a height to diameter ratio of at least about 2.3. The mixture is calcined to decompose the fluoride donor, forming a fluorinated support.
    Type: Application
    Filed: August 19, 2014
    Publication date: August 17, 2017
    Applicant: Univation Technologies, LLC
    Inventors: John H. Moorhouse, Kevin J. Cann, Phuong A. Cao, Mark G. Goode, C. Jeff Harlan, Wesley R. Mariott
  • Controlling a polyolefin reaction
    Patent number: 9718896
    Abstract: Methods and systems for controlling a polymerization reaction in a non-sticking regime are disclosed. An exemplary method includes measuring parameters for the polymerization reaction including a reactor temperature and a concentration of an induced condensing agent (ICA) in a polymerization reactor. An equivalent partial pressure ((PICA)equiv) of the ICA is calculated. The polymerization reaction is located in a two dimension space defined by a reactor temperature dimension and a ((PICA)equiv) dimension. The location in the two dimensional space is compared to an non-sticking regime, defined as the space between an upper temperature limit (UTL) curve and a lower temperature limit (LTL) curve. The parameters of the polymerization reaction are adjusted to keep the polymerization reaction within the non-sticking regime.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: August 1, 2017
    Assignee: Univation Technologies, LLC
    Inventors: Abarajith S. Hari, Bruce J. Savatsky, David M. Glowczwski, Xianyi Cao
  • Polymer products and multi-stage polymerization processes for the production thereof
    Patent number: 9718908
    Abstract: Multi-stage polymerization processes that produce polymers having controlled compositions and molecular weight with improved catalyst productivity are disclosed. An example method for producing a multi-modal polyolefin comprises polymerizing the multi-modal polyolefin in the presence of a metallocene catalyst system in at least a slurry-phase polymerization stage and a gas-phase polymerization stage arranged in series in any order, wherein the multi-modal olefin comprises: (i) a first polyolefin fraction having a density of less than about 940 kg/m3, and (ii) a second polyolefin fraction having a density of less than about 930 kg/m3.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: August 1, 2017
    Assignee: Univation Technologies, LLC
    Inventor: Richard B. Pannell
  • Ligands for catalysts
    Patent number: 9718900
    Abstract: Catalyst systems and methods for making and using the same. A catalyst system can include a non-metallocene catalyst having the structure: wherein M is a group 4 element, each of R13-R20 are independently a hydrogen or a methyl group, wherein at least one of R13-R20 is a methyl group, Ar is an aryl group or a substituted aryl group, Ar? is an aryl group or a substituted aryl group, and each X is, independently, a hydride group, an amide, a benzyl group, a methyl group, a chloro group, a fluoro group, or a hydrocarbyl group.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: August 1, 2017
    Assignee: Univation Technologies, LLC
    Inventor: Garth R. Giesbrecht
  • Multiple catalyst system comprising metallocenes and tridentate nitrogen based ligand complexes for olefin polymerisation
    Patent number: 9714305
    Abstract: Catalyst systems and methods for making and using the same are described herein. A catalyst system can include at least three catalysts. The three catalysts include a metallocene catalyst, a first non-metallocene including a ligand complexed to a metal through two or more nitrogen atoms, and a second non-metallocene including a ligand complexed to a metal through one or more nitrogen atoms and an oxygen atom.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: July 25, 2017
    Assignee: Univation Technologies, LLC
    Inventors: Juliet B. Wagner, Garth R. Giesbrecht, Sun-Chueh Kao, Stephen P. Jaker
  • Producing polyolefin products
    Publication number: 20170204208
    Abstract: Catalyst systems and methods for making and using the same are described herein. A catalyst system can include at least three catalysts. The three catalysts include a metallocene catalyst, a first non-metallocene including a ligand complexed to a metal through two or more nitrogen atoms, and a second non-metallocene including a ligand complexed to a metal through one or more nitrogen atoms and an oxygen atom.
    Type: Application
    Filed: April 5, 2017
    Publication date: July 20, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Juliet Bauer Wagner, Garth R. Giesbrecht, Sun-Chueh Kao, Stephen P. Jaker
  • PRODUCING POLYOLEFIN PRODUCTS
    Publication number: 20170183433
    Abstract: Catalyst systems and methods for making and using the same. A method of methylating a catalyst composition while substantially normalizing the entiomeric distribution is provided. The method includes slurrying the organometallic compound in dimethoxyethane (DME), and adding a solution of RMgBr in DME, wherein R is a methyl group or a benzyl group, and wherein the RMgBr is greater than about 2.3 equivalents relative to the organometallic compound. After the addition of the RMgBr, the slurry is mixed for at least about four hours. An alkylated organometallic is isolated, wherein the methylated species has a meso/rac ratio that is between about 0.9 and about 1.2.
    Type: Application
    Filed: February 10, 2015
    Publication date: June 29, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Francis C. RIX, Alexander D. TODD, C. Jeff HARLAN
  • CATALYST COMPOSITION, METHODS OF PREPARATION AND USE IN A POLYMERIZATION PROCESS
    Publication number: 20170183434
    Abstract: Polymerization catalyst compositions are provided as are methods of their preparation. The compositions comprise fatty amines and find advantageous use in olefin polymerization processes. The catalyst composition comprises at least one supported polymerization catalyst wherein the catalyst composition is modified with at least one fatty amine wherein the fatty amine is substantially free of particulate inorganic material.
    Type: Application
    Filed: February 5, 2015
    Publication date: June 29, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, F. David Hussein, Phuong A. Cao, Wesley R. Mariott, Michael D. Awe
  • Continuity compositions and methods of making and using the same
    Patent number: 9676885
    Abstract: Continuity compositions are provided as are methods of their preparation. The compositions comprise at least one metal carboxylate salt which is modified with at least one molten fatty amine. These compositions find advantageous use in olefin polymerization processes.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: June 13, 2017
    Assignee: Univation Technologies, LLC
    Inventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, F. David Hussein, Phuong A. Cao, Wesley R. Mariott, Michael D. Awe