Patents Assigned to Univation Technologies
  • CATALYST ACTIVATORS, METHODS OF PREPARATION AND USE IN POLYMERIZATION PROCESSES
    Publication number: 20190248937
    Abstract: Catalyst activators and methods for their preparation and their use in processes for polymerizing olefins 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: April 24, 2019
    Publication date: August 15, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Ian M. Munro, Kevin J. Cann
  • SUPPORTED CATALYST WITH IMPROVED FLOWABILITY
    Publication number: 20190218364
    Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst system can include a catalyst support, wherein the catalyst support has an average particle size of about 2 microns to about 200 microns. Nanoparticles are adhered to the catalyst support, wherein the nanoparticles have an average particle size of about 2 to about 200 nanometers. A catalyst is supported on the catalyst support.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 18, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Yuanqiao Rao, Ping Cai, Kevin J. Cann, F. David Hussein, Wesley R. Mariott, Phuong A. Cao
  • SUPPORTED CATALYST WITH IMPROVED FLOWABILITY
    Publication number: 20190211181
    Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst system can include a catalyst support, wherein the catalyst support has an average particle size of about 2 microns to about 200 microns. Nanoparticles are adhered to the catalyst support, wherein the nanoparticles have an average particle size of about 2 to about 200 nanometers. A catalyst is supported on the catalyst support.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 11, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Yuanqiao Rao, Ping Cai, Kevin J. Cann, F. David Hussein, Wesley R. Mariott, Phuong A. Cao
  • SUPPORTED CATALYST WITH IMPROVED FLOWABILITY
    Publication number: 20190211180
    Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst system can include a catalyst support, wherein the catalyst support has an average particle size of about 2 microns to about 200 microns. Nanoparticles are adhered to the catalyst support, wherein the nanoparticles have an average particle size of about 2 to about 200 nanometers. A catalyst is supported on the catalyst support.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 11, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Yuanqiao Rao, Ping Cai, Kevin J. Cann, F. David Hussein, Wesley R. Mariott, Phuong A. Cao
  • METHOD FOR SYNTHESIS OF MONOCYCLOPENTADIENYL COMPLEXES OF ZIRCONIUM AND HAFNIUM
    Publication number: 20190194238
    Abstract: Catalyst systems and methods for making and using the same are disclosed. In an example, a method of synthesizing a monocyclopentadienyl compound is provided. The method includes melting a dicyclopentadienyl compound including the following structure: As used herein, M is hafnium or zirconium. Each R is independently an H, a hydrocarbyl group, a substituted hydrocarbyl group, a heteroatom group. Each X is a leaving group selected from a halogen or a heteroatom group.
    Type: Application
    Filed: February 27, 2019
    Publication date: June 27, 2019
    Applicant: Univation Technologies, LLC
    Inventor: C. Jeff Harlan
  • Methods of monitoring and controlling the melt index of a polyolefin product during production
    Patent number: 10329365
    Abstract: Methods for producing polyolefin polymers may use a predictive melt index regression to estimate the melt index of the polyolefin during production based on the composition of the gas phase and, optionally, the concentration of catalyst in the reactor or reactor operating conditions. Such predictive melt index regression may include multiple terms to account for concentration of ICA in the reactor, optionally concentration of hydrogen in the reactor, optionally concentration of comonomer in the reactor, optionally the catalyst composition, and optionally reactor operating conditions. One or more terms may independently be represented by a smoothing function that incorporates a time constant.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: June 25, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Bruce J. Savatsky, Daniel N. Thomas, Jr., Timothy R. Lynn
  • Catalyst composition, methods of preparation and use in a polymerization process
    Patent number: 10329364
    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: Grant
    Filed: February 5, 2015
    Date of Patent: June 25, 2019
    Assignee: 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
  • METHOD OF PRODUCING POLYETHYLENE AND POLYETHYLENE THEREOF
    Publication number: 20190177452
    Abstract: A system and method of producing polyethylene, including: polymerizing ethylene in presence of a catalyst system in a reactor to form polyethylene, wherein the catalyst system includes a first catalyst and a second catalyst; and adjusting reactor conditions and an amount of the second catalyst fed to the reactor to control melt index (MI), density, and melt flow ratio (MFR) of the polyethylene.
    Type: Application
    Filed: February 18, 2019
    Publication date: June 13, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Timothy M. Boller, Ching-Tai Lue, Francis C. Rix, Daniel P. Zilker, JR., C. Jeff Harlan, James M. Farley, Fathi David Hussein, Dongming Li, Steven A. Best
  • PRODUCING POLYOLEFIN PRODUCTS
    Publication number: 20190169333
    Abstract: Catalyst systems and methods for making and using the same are described. A method includes selecting a catalyst blend using a blend polydispersity index (bPDI) map. The polydispersity map is generated by generating a number of polymers for at least two catalysts. Each polymer is generated at a different hydrogen to ethylene ratio. At least one catalyst generates a higher molecular weight polymer and another catalyst generates a lower molecular weight polymer. A molecular weight for each polymer is measured. The relationship between the molecular weight of the polymers generated by each of the catalysts and the ratio of hydrogen to ethylene is determined. A family of bPDI curves for polymers that would be made using a number of ratios of a blend of the at least two catalysts for each of a number of ratios of hydrogen to ethylene.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Francis C. Rix, Ching-Tai Lue, Timothy M. Boller, Garth R. Giesbrecht, C. Jeff Harlan
  • Producing polyolefin products with improved stiffness, toughness, and processability
    Patent number: 10308742
    Abstract: Polymers, and systems and methods for making and using the same are described herein. A polymer includes ethylene and at least one alpha olefin having from 4 to 20 carbon atoms. The polymer is formed by a trimmed catalyst system including a supported catalyst including bis(n-propylcyclopentadienyl) hafnium (R1)(R2) and a trim catalyst comprising meso-O(SiMe2Ind)2Zr(R1)(R2), wherein R1 and R2 are each, independently, methyl, chloro, fluoro, or a hydrocarbyl group.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: June 4, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Ching-Tai Lue, Francis C. Rix, Timothy M. Boller, Garth R. Giesbrecht, Mark G. Goode, Sun-Chueh Kao, Dongming Li, R. Eric Pequeno, Daniel P. Zilker, Jr.
  • METHODS FOR CONTROLLING POLYMER PROPERTIES
    Publication number: 20190161568
    Abstract: Disclosed herein are methods of controlling polymer properties in polymerization processes that use a chromium-based catalyst. An embodiment discloses a method of producing a polyolefin comprising: contacting a reaction mixture and a reduced chromium oxide catalyst in a gas-phase reactor to produce the polyolefin, wherein the reaction mixture comprises a monomer and a co-monomer; and changing a reaction temperature in the gas-phase reactor by about 1° C. or more whereby a gas molar ratio of the co-monomer to the monomer is changed by about 2% or more and a co-monomer content of the polyolefin at substantially constant density is changed by about 2% or more. Additional methods and compositions are also provided.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 30, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Mark G. Goode, Francois Alexandre, Kevin J. Cann, Barbara J. Kopp, William A. Matthews, John H. Moorhouse, Cliff R. Mure
  • METAL COMPLEXES
    Publication number: 20190144570
    Abstract: Embodiments of the present disclosure are directed towards metal complexes that can be utilized to form polymers. As an example, the present disclosure provides a metal complex of Formula (I) wherein M is Zr, Hf, or Ti; each Het is independently a heterocyclic; each L is independently a bridging group; each X is independently Cl, Br, I, or alkyl; each R1 is independently selected from the group including hydrogen, alkyls, alkenyls, alkynyls, cycloalkyls, aryls, acyls, aroyls, alkoxys, aryloxys, alkylthiols, dialkylamines, alkylamidos, alkoxycarbonyls, aryloxycarbonyls, carbomoyls, alkyl- and dialkyl-carbamoyls, acyloxys, acylaminos, aroylaminos, aromatic rings, fused aromatic rings, and combinations thereof; and each n is independently an integer having a value of one to five.
    Type: Application
    Filed: March 13, 2017
    Publication date: May 16, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Mahsa Heydari, Roger L. Kuhlman, C. Jeff Harlan
  • Systems and methods using an insert assembly with stacked gas flow gaps
    Patent number: 10286372
    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: Grant
    Filed: March 10, 2015
    Date of Patent: May 14, 2019
    Assignee: Univation Technologies, LLC
    Inventors: William R. Peckol, Donald A. Fischer
  • Supported catalyst with improved flowability
    Patent number: 10280283
    Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst system can include a catalyst support, wherein the catalyst support has an average particle size of about 2 microns to about 200 microns. Nanoparticles are adhered to the catalyst support, wherein the nanoparticles have an average particle size of about 2 to about 200 nanometers. A catalyst is supported on the catalyst support.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 7, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Yuanqiao Rao, Ping Cai, Kevin J. Cann, F. David Hussein, Wesley R. Mariott, Phuong A. Cao
  • POLYMER FLOW INDEX MODIFIER
    Publication number: 20190119416
    Abstract: Embodiments of the present disclosure are directed towards method for modifying a polymer flow index. As an example, a method for modifying a polymer flow index can include providing monomers to a polymerization reactor, providing a chromium catalyst to the polymerization reactor, and providing an active amount of a flow index modifier to the polymerization reactor, wherein the flow index modifier is selected from carbon dioxide, carbon monoxide, 2,4-hexadiene, and combinations thereof.
    Type: Application
    Filed: April 17, 2017
    Publication date: April 25, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Charles D. Lester, Mark G. Goode, Timothy R. Lynn, Kevin J. Cann, John H. Moorhouse, William Albert Matthews, Kefu Sun, Francois Alexandre
  • Chromium-based catalyst compositions for olefin polymerization
    Patent number: 10266618
    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: Grant
    Filed: November 23, 2015
    Date of Patent: April 23, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Kevin J. Cann, John H. Moorhouse, Parul A. Khokhani, Tomas T. Tamargo, Kevin R. Gross, Mark G. Goode
  • Method for synthesis of monocyclopentadienyl complexes of zirconium and hafnium
    Patent number: 10266557
    Abstract: Catalyst systems and methods for making and using the same are disclosed. In an example, a method of synthesizing a monocyclopentadienyl compound is provided. The method includes melting a di-cyclopentadienyl compound including the following structure: (A). As used herein, M is hafnium or zirconium. Each R is independently an H, a hydrocarbyl group, a substituted hydrocarbyl group, a heteroatom group. Each X is a leaving group selected from a halogen or a heteroatom group. A reaction melt is formed by adding a metal salt including the following structure: (B). A monocyclopentadienyl compound is deposited from a vapor formed over the reaction melt, wherein the monocyclopentadienyl compound includes the following structure: (C).
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 23, 2019
    Assignee: Univation Technologies, LLC
    Inventor: C. Jeff Harlan
  • BRIDGED BI-AROMATIC LIGANDS AND OLEFIN POLYMERIZATION CATALYSTS PREPARED THEREFROM
    Publication number: 20190111414
    Abstract: Disclosed are novel bridged bi-aromatic phenol ligands and transition metal catalyst compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds, and polymerization processes utilizing the transition metal compounds for the production of olefin polymers.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 18, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, C. Jeff Harlan
  • PRODUCING POLYOLEFIN PRODUCTS
    Publication number: 20190106519
    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: December 11, 2018
    Publication date: April 11, 2019
    Applicant: Univation Technologies, LLC
    Inventors: Juliet Bauer Wagner, Garth R. Giesbrecht, Sun-Chueh Kao, Stephen P. Jaker
  • Method of producing polyethylene and polyethylene thereof
    Patent number: 10253121
    Abstract: A system and method of producing polyethylene, including: polymerizing ethylene in presence of a catalyst system in a reactor to form polyethylene, wherein the catalyst system includes a first catalyst and a second catalyst; and adjusting reactor conditions and an amount of the second catalyst fed to the reactor to control melt index (MI), density, and melt flow ratio (MFR) of the polyethylene.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: April 9, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Timothy M. Boller, Ching-Tai Lue, Francis C. Rix, Daniel P. Zilker, Jr., C. Jeff Harlan, James M. Farley, Fathi D. Hussein, Dongming Li, Steven A. Best