Patents Assigned to Univation Technologies, LLC
  • METHODS OF MODIFYING THE MELT FLOW RATIO AND/OR SWELL OF POLYETHYLENE RESINS
    Publication number: 20170137551
    Abstract: Methods of making polyethylene resins are provided. More particularly methods of modifying the melt flow ratio and swell characteristics of polyethylene resins are provided.
    Type: Application
    Filed: April 9, 2015
    Publication date: May 18, 2017
    Applicant: Univation Technologies, LLC
    Inventors: R. Eric PEQUENO, Bruce J. SAVATSKY, Peter S. MARTIN, Timothy R. LYNN
  • Methods of integrating aluminoxane production into catalyst production
    Patent number: 9650453
    Abstract: Methods for integrating aluminoxane production into catalyst production are disclosed.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: May 16, 2017
    Assignee: Univation Technologies, LLC
    Inventors: Randall L. Force, Timothy R. Lynn, Michael D. Awe
  • POLYETHYLENE RESINS
    Publication number: 20170129977
    Abstract: Polyethylene resins having variable swell and excellent physical properties are provided. The polyethylene resins may be advantageously prepared using a single catalyst system.
    Type: Application
    Filed: April 9, 2015
    Publication date: May 11, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Peter S. Martin, Juliet Bauer Wagner, Timothy R. Lynn, R. Eric Pequeno
  • Tridentate nitrogen based ligands for olefin polymerisation catalysts
    Patent number: 9644053
    Abstract: Catalyst systems and methods for making and using the same are provided. A method for forming a polymer catalyst includes reacting a bromoketone compound with an aryl amine compound to form an amide compound. The amide compound is reacted with an ethylene diamine compound, to form a terminal primary amine compound. The terminal primary amine compound is reacted with a bromoaryl compound to form a ligand.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: May 9, 2017
    Assignee: Univation Technologies, LLC
    Inventor: Steven D. Brown
  • Spray-dried catalyst compositions and polymerization processes employing the same
    Patent number: 9637567
    Abstract: Spray-dried catalyst compositions comprising a transition metal complex and polymerization processes employing the same are disclosed herein. An embodiment provides a spray-dried catalyst composition comprising a transition metal catalyst component represented by the following formula: (I) and polymerization process employing the same.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: May 2, 2017
    Assignee: Univation Technologies, LLC
    Inventors: Wesley R. Mariott, Phuong A. Cao, Daniel P. Zilker, Jr., John H. Oskam, Cliff R. Mure
  • Protecting phenol groups
    Patent number: 9604893
    Abstract: A method for protecting a phenol group on a precursor compound is provided. The method includes reacting the phenol group with dihydropyran in an acid catalyzed protection reaction and quenching the protection reaction with a strong base within less than about 60 seconds to form a protected precursor compound.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: March 28, 2017
    Assignee: Univation Technologies, LLC
    Inventors: C. Jeff Harlan, Steven D. Brown
  • PREPARATION OF POLYOLEFIN
    Publication number: 20170081432
    Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst systems can include a plurality of silica particles and a metallocene catalyst and an activator supported on the plurality of silica particles. The polymerization catalysts have a particle size distribution in which about 10% of the particles have a size less than about 17 to about 23 micrometers, about 50% of the particles have a size less than about 40 to about 45 micrometers, and about 90% of the particles have a size less than about 72 to about 77 micrometers.
    Type: Application
    Filed: December 5, 2016
    Publication date: March 23, 2017
    Applicant: Univation Technologies, LLC
    Inventors: C. Dale Lester, Kevin J. Cann, Phuong A. Cao, Abarajith S. Hari, F. David Hussein, Wesley R. Mariott, John H. Moorhouse, Richard B. Pannell, Bruce J. Savatsky, Daniel P. Zilker, JR., Mark G. Goode
  • METHODS FOR MAKING CATALYST COMPOSITIONS AND POLYMER PRODUCTS PRODUCED THEREFROM
    Publication number: 20170029542
    Abstract: Methods for making olefin polymerization catalysts and methods for making polymers using the catalysts are provided. The method for making the catalyst can include combining one or more supports with one or more magnesium-containing compounds under reaction conditions to form a first reacted product. One or more chlorinating compounds selected from the group consisting of aluminum alkyl chlorides and chloro substituted silanes can be combined with the first reacted product under reaction conditions to form a second reacted product. One or more titanium-containing compounds selected from the group consisting of titanium alkoxides and titanium halides can be combined with the second reacted product under reaction conditions to form a catalyst.
    Type: Application
    Filed: October 13, 2016
    Publication date: February 2, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Wesley R. Mariott, Kevin J. Cann, John H. Moorhouse, Mark G. Goode, Thomas Oswald
  • CONTINUITY COMPOSITIONS AND METHODS OF MAKING AND USING THE SAME
    Publication number: 20170022310
    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: Application
    Filed: March 10, 2015
    Publication date: January 26, 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
  • PRODUCING POLYOLEFIN PRODUCTS
    Publication number: 20170022309
    Abstract: A method of polymerizing olefins is disclosed. The method comprises contacting ethylene and at least one co-monomer with a catalyst system to produce a polyolefin polymer that is multimodal. The catalyst system comprises a first catalyst that promotes polymerization of the ethylene into a low molecular weight (LMW) portion of the polyolefin polymer and a second catalyst that promotes polymerization of the ethylene into a high molecular weight (HMW) portion of the polyolefin polymer. The first catalyst and at least a portion of the second catalyst are co-supported to form a commonly-supported catalyst system and at least a portion of the second catalyst is added as a catalyst trim feed to the catalyst system.
    Type: Application
    Filed: February 10, 2015
    Publication date: January 26, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Daniel D. Vanderlende, C. Jeff Harlan, Haiqing Peng, Michael D. Awe, Roger L. Kuhlman, Ching-Tai Lue, Timothy R. Lynn, Wesley R. Mariott, Daniel P. Zilker, JR.
  • PROCESS CONTROL FOR LONG CHAIN BRANCHING CONTROL IN POLYETHYLENE PRODUCTION
    Publication number: 20170015768
    Abstract: Polymerization process control methods for making polyethylene are provided. The process control methods include performing a polymerization reaction in a polymerization reactor to produce the polyethylene, where ethylene, and optionally one or more comonomers, in the polymerization reaction is catalyzed by an electron donor-free Ziegler-Natta catalyst and an alkyl aluminum co-catalyst. A melt flow ratio (I21/I2) of the polyethylene removed from the polymerization reactor is measured and an amount of long chain branching (LCB) of the polyethylene from the polymerization reactor is controlled by adjusting a weight concentration of the alkyl aluminum co-catalyst present in the polymerization reactor.
    Type: Application
    Filed: September 27, 2016
    Publication date: January 19, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Wesley R. Mariott, Kevin J. Cann, John H. Moorhouse, Mark G. Goode, Thomas Oswald
  • PRODUCING POLYOLEFIN PRODUCTS
    Publication number: 20170008983
    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 10, 2015
    Publication date: January 12, 2017
    Applicant: Univation Technologies, LLC
    Inventors: Francis C. Rix, Ching-Tai Lue, Timothy M. Boller, Garth R. Giesbrecht, C. Jeff Harlan
  • Preparation of polyolefin
    Patent number: 9540460
    Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst systems can include a plurality of silica particles and a metallocene catalyst and an activator supported on the plurality of silica particles. The polymerization catalysts have a particle size distribution in which about 10% of the particles have a size less than about 17 to about 23 micrometers, about 50% of the particles have a size less than about 40 to about 45 micrometers, and about 90% of the particles have a size less than about 72 to about 77 micrometers.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: January 10, 2017
    Assignee: Univation Technologies, LLC
    Inventors: C. Dale Lester, Kevin J. Cann, Phuong A. Cao, Abarajith S. Hari, F. David Hussein, Wesley R. Mariott, John H. Moorhouse, Richard B. Pannell, Bruce J. Savatsky, Daniel P. Zilker, Jr., Mark G. Goode
  • METHOD TO PREPARE ETHYLENE COPOLYMERS
    Publication number: 20160362510
    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 general formulas (A) or (B). 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: Application
    Filed: February 10, 2015
    Publication date: December 15, 2016
    Applicant: Univation Technologies, LLC
    Inventors: Francis C. Rix, Ching-Tai Lue, C. Jeff Harlan, Laughlin G. McCullough
  • Increased polymer melt flow ratio via feed of a supported catalyst saturated with a selected liquid agent
    Patent number: 9512254
    Abstract: A process for the production of ethylene alpha-olefin copolymers is disclosed. The process may include feeding a catalyst system comprising a supported metallocene, such as a hafnocene, having pores saturated with a selected liquid agent, to a gas phase polymerization reactor. Ethylene and an alpha-olefin may then be contacted with the supported metallocene in the gas phase polymerization reactor to produce an ethylene alpha-olefin copolymer. The copolymer may have a density of less than 0.93 g/cm3, a melt index (I2) of less than 2 dg/min, and a melt flow ratio (I21/I2) of at least 28. To advantageously result in desired effects on catalyst properties and/or polymer properties, the liquid agent may be selected to advantageously manipulate catalyst temperature profiles and/or catalyst-monomer interaction during an initial heating period when the catalyst is first introduced to the reactor.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: December 6, 2016
    Assignee: Univation Technologies, LLC
    Inventors: F. David Hussein, Daniel P. Zilker, Jr., Kevin J. Cann
  • METHOD OF PRODUCING POLYETHYLENE AND POLYETHYLENE THEREOF
    Publication number: 20160347874
    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 10, 2015
    Publication date: December 1, 2016
    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 D. Hussein, Dongming Li, Steven A. Best
  • PRODUCING POLYOLEFIN PRODUCTS WITH IMPROVED STIFFNESS, TOUGHNESS, AND PROCESSABILITY
    Publication number: 20160347888
    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 has a melt index ratio (MIR) greater than about 40. The polymer also has a value for Mw1/Mw2 of at least about 2.0, wherein Mw1/Mw2 is a ratio of a weight average molecular weight (Mw) for a first half of a temperature rising elution (TREF) curve from a cross-fractionation (CFC) analysis to an Mw for a second half of the TREF curve. The polymer also has a value for Tw1?Tw2 of less than about ?15° C., wherein Tw1?Tw2 is a difference of a weight average elution temperature (Tw) for the first half of the TREF curve to a Tw for the second half of the TREF curve.
    Type: Application
    Filed: February 10, 2015
    Publication date: December 1, 2016
    Applicant: 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, James M. Farley, Daniel P. Zilker, Jr.
  • PRODUCING POLYOLEFIN PRODUCTS
    Publication number: 20160347889
    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: Application
    Filed: February 10, 2015
    Publication date: December 1, 2016
    Applicant: Univation Technologies, LLC
    Inventors: Ching-Tai Lue, Francis C. Rix, C. Jeff Harlan, Laughlin G. McCullough
  • PRODUCING POLYOLEFIN PRODUCTS WITH IMPROVED STIFFNESS, TOUGHNESS, AND PROCESSABILITY
    Publication number: 20160347886
    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: Application
    Filed: February 10, 2015
    Publication date: December 1, 2016
    Applicant: 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.
  • PRODUCING POLYOLEFIN PRODUCTS
    Publication number: 20160347890
    Abstract: Catalyst systems and methods for making and using the same. A method of polymerizing olefins to produce a polyolefm 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) (C5HcR24)HfX2. The second catalyst compound comprises the following formula: (A), wherein each R3 or R4 is independently H, a hydrocarbyl group, a substituted hydrocarbyl group, or a heteroatom group, wherein each R3 or R4 may be the same or different, and each X is independently a leaving group selected from a labile hydrocarbyl, a substituted hydrocarbyl, a heteroatom group, or a divalent radical that links to an R3 group.
    Type: Application
    Filed: February 10, 2015
    Publication date: December 1, 2016
    Applicant: Univation Technologies, LLC
    Inventors: Sun-Chueh Kao, Francis C. Rix, Ching-Tai Lue, Mark G. Goode, Dongming Li