Patents Examined by Catherine S Branch
  • Polyolefin film with improved toughness
    Patent number: 10913831
    Abstract: A film formed from a polyethylene copolymer using a reduced chromium oxide catalyst, ethylene monomers and a co-monomer selected from butene monomers or 1-hexene, where the polyethylene copolymer has a density in the range of from about 0.935 to about 0.950 g/cm3 and an I21/I5 in a range of about 18.0 to about 30.0. The film formed from the polyethylene copolymer has a dart drop impact (g/?m) that significantly greater as compared to a film of the polyethylene copolymer formed using a silyl chromate catalyst in place of the reduced chromium oxide catalyst. A method of making such films is also provided.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: February 9, 2021
    Assignee: Univation Technologies, LLC
    Inventors: Cliff R. Mure, Dongming Li, Barbara J. Kopp, Mark G. Goode
  • Metal complexes comprising diazabenzmidazolocarbene ligands and the use thereof in OLEDS
    Patent number: 10916716
    Abstract: The present invention relates to metal-carbene complexes comprising a central atom selected from iridium and platinum, and diazabenzimidazolocarbene ligands, to organic light diodes which comprise such complexes, to light-emitting layers comprising at least one such metal-carbene complex, to a device selected from the group comprising illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED and to the use of such a metal-carbene complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge or exciton blocker.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: February 9, 2021
    Assignee: UDC IRELAND LIMITED
    Inventors: Oliver Molt, Nicolle Langer, Evelyn Fuchs, Korinna Dormann, Christian Schildknecht, Soichi Watanabe, Gerhard Wagenblast, Christian Lennartz, Thomas Schaefer, Heinz Wolleb, Teresa Marina Figueira Duarte, Stefan Metz, Peter Murer
  • Polymerization catalyst, copolymer, polymer composition, and crosslinked polymer
    Patent number: 10906996
    Abstract: Provided is a polymerization catalyst including a metal complex obtained by mixing at least one ketimine derivative selected from the group consisting of a ?-ketimine compound and a tautomer thereof with a compound having at least one metal selected from among Group 4 and 5 transitional metals, an organoaluminum compound, and a halogen compound.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: February 2, 2021
    Assignee: JSR CORPORATION
    Inventors: Ayumi Watanabe, Shoichi Matsumoto, Takuo Sone
  • Initiator mixture, composition, the use thereof, polyol polymer preparation method, and polyol polymer obtained by the method
    Patent number: 10882941
    Abstract: The present invention relates to an initiator mixture, a composition, use thereof, a process of preparing polymer polyol, and a polymer polyol obtained by the process. The initiator mixture comprises: a first peroxide of formula (I) R1—O—O—R2, wherein R1 and R2 are independent an alkyl group or an alkanoyl group comprising 1 to 30 carbon atoms, preferably 3 to 20 carbon atoms, and more preferably 4 to 20 carbon atoms; and a second peroxide of formula (II) R3—O—O—R4—O—O—R5, wherein R3 and R5 are independently an alkyl group comprising 1 to 30 carbon atoms, preferably 3 to 20 carbon atoms, and more preferably 5 to 10 carbon atoms, and R4 is a cycloalkylene group comprising 3 to 30 carbon atoms, preferably 4 to 20 carbon atoms, and more preferably 5 to 10 carbon atoms.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: January 5, 2021
    Assignee: Arkema France
    Inventors: Bin Ji, Shenglin Zou, Peng Dai
  • Procatalyst for polymerization of olefins
    Patent number: 10882929
    Abstract: The present invention relates to a procatalyst comprising the compound represented by formula A as an internal electron donor (Formula A), wherein R is hydrogen or a methyl group, N is nitrogen atom; O is oxygen atom; and C is carbon atom. The present invention also relates to a process for preparing said polymerization procatalyst and to a polymerization catalyst system comprising said procatalyst, a co-catalyst and optionally an external electron donor. Furthermore, the present invention relates to a polyolefin obtainable by the process according to the present invention and to the use of the compound of formula A as in internal electron donor in catalysts for polymerization of olefins.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: January 5, 2021
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Jaiprakash Brijlal Sainani, Akhlaq Moman
  • Procatalyst and polymerization process using the same
    Patent number: 10870713
    Abstract: A procatalyst for the polymerization of ethylene and optionally one or more alpha-olefins having the structure shown in formula (I) below. Formula (I) is provided. Also provided is a polymerization process using the inventive procatalyst.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 22, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Ruth Figueroa, Johnathan Delorbe, Phillip P. Fontaine, Jerzy Klosin, Ravi Shankar, Matthew Yonkey
  • Melt-blown webs without shots and with improved barrier properties
    Patent number: 10870937
    Abstract: Melt-blown webs having no shots and improved barrier properties, whereby the melt-blown webs are made out of a so-called “controlled rheology” propylene (CR-PP), which was visbroken without any peroxide.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: December 22, 2020
    Assignee: BOREALIS AG
    Inventors: Joachim Fiebig, Henk Van Paridon, Jingbo Wang, Markus Gahleitner, Wilhelmus Henricus Adolf Sars, Antti Tynys
  • Method comprising contacting tissue with a cross-linkable polyester prepolymer
    Patent number: 10864303
    Abstract: The present inventions in various aspects provide elastic biodegradable polymers. In various embodiments, the polymers are formed by the reaction of a multifunctional alcohol or ether and a difunctional or higher order acid to form a pre-polymer, which is cross-linked to form the elastic biodegradable polymer. In preferred embodiments, the cross-linking is performed by functionalization of one or more OR groups on the pre-polymer backbone with vinyl, followed by photopolymerization to form the elastic biodegradable polymer composition or material. Preferably, acrylate is used to add one or more vinyls to the backbone of the pre-polymer to form an acrylated pre-polymer. In various embodiments, acrylated pre-polymers are co-polymerized with one or more acrylated co-polymers.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: December 15, 2020
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Christopher J. Bettinger, Joost P. Bruggeman, Lino da Silva Ferreira, Jeffrey M. Karp, Robert S. Langer, Christiaan Nijst, Andreas Zumbuehl, Jason Burdick, Sonia J. Kim
  • Methods of preparing a catalyst utilizing hydrated reagents
    Patent number: 10858460
    Abstract: A method of preparing a catalyst comprising a) contacting a titanium-containing compound, a solvating agent, and a solvent to form a solution; b) contacting the solution with a chrominated silica-support to form a pre-catalyst; and c) thermally treating the pre-catalyst by heating to a temperature of from about 400° C. to about 1000° C. for a time period of from about 1 minute to about 24 hours to form the catalyst.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: December 8, 2020
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Kathy S. Clear, Eric D. Schwerdtfeger, Jeremy M. Praetorius
  • Polybutadiene, production and use thereof
    Patent number: 10851189
    Abstract: The invention relates to polybutadiene, which contains the monomer units derived from 1,3-butadiene having a vinyl double bond in a proportion of 25 to 75 mole percent, having a trans-double bond in a proportion of 0 to 10 mole percent and a cis-double bond in a proportion of 25 to 75 mole percent, wherein the totality of the monomer units (A), (B) and (C) is supplemented to 100 mole percent, and which is characterized in that it has a number-average mole mass of 1,000 to 3,000 g/mole. The invention further relates to a method for producing polybutadienes, the use of the polybutadiene according to the invention and compositions containing polybutadiene according to the invention.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: December 1, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Kai-Steffen Krannig, Jürgen Herwig, Andreas Berlineanu, Miriam Ammer, Philip Kemper, Alexander Pschantka, Yvonne Groß-Onnebrink, Gudula Beuers, Margit Bukohl, Kirsten Luce, Siegfried Jittenmeier
  • Mixed catalysts with 2,6-bis(imino)pyridyl iron complexes and bridged hafnocenes
    Patent number: 10844150
    Abstract: The present invention provides a supported catalyst system comprising: a bridged group 4 metallocene compound, an iron compound, specifically a 2,6-bis(imino)pyridyl iron complex, a support material and an activator. The present invention further provides a process for polymerization of monomers (such as olefin monomers) comprising contacting one or more monomers with the above supported catalyst systems.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: November 24, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Xuan Ye, Charles J. Harlan, Michelle E. Titone, Matthew S. Bedoya, Subramaniam Kuppuswamy, Hasnain Rangwalla
  • Method for altering melt flow ratio of ethylene polymers
    Patent number: 10836851
    Abstract: A method for altering the melt flow ratio (MFR) of ethylene copolymers made in a gas phase reactor using a supported Ziegler-Natta catalyst treated with a catalyst modifier. The method involves changing the amount of the catalyst modifier added to the supported Ziegler-Natta polymerization catalyst to effect changes in the MFR of the resulting polymer.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 17, 2020
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Victoria Ker, Peter Phung Minh Hoang
  • Catalyst composition for preparing conjugated diene-based polymer and conjugated diene-based polymer preparing using the same
    Patent number: 10836850
    Abstract: The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. (X1)a—N—(X2)3-a??[Formula 1] In Formula 1, a, X1, and X2 are the same as defined in the disclosure.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 17, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Suk Youn Kang, Hyo Jin Bae, Sung Ho Park, Jeong Heon Ahn, Ji Eun Kim, Kyoung Hwan Oh
  • Method for forming highly reactive olefin functional polymers
    Patent number: 10829573
    Abstract: A process for the preparation of polybutene having an exo-olefin content of at least 50 mol. % from an isobutene-containing monomer feedstock, which process comprises contacting said isobutene-containing feedstock with a Lewis acid catalyst complexed with a Lewis base, in an apolar polymerization medium, and initiating polymerization of said isobutene-containing feedstock. The Lewis acid catalyst is of formula R?AlCl2, wherein R? is hydrocarbyl; the Lewis base is a dihydrocarbyl ether wherein each hydrocarbyl group is independently selected from C1-C8 hydrocarbyl groups and one or both hydrocarbyl groups of the dihydrocarbyl ether are substituted with an electron-withdrawing group; and the initiator is a compound of formula RX, wherein X is a halide; R is a hydrocarbyl group capable of forming a stable carbocation, and the carbon linking group R to group X is tertiary, benzylic, or allylic.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: November 10, 2020
    Assignee: INFINEUM INTERNATIONAL LIMITED
    Inventors: Phillip Dimitrov, Richard J. Severt, Peter J. Hobin, Kyle Nesti
  • Polyethylene composition and process for polymerizing the same
    Patent number: 10822437
    Abstract: The instant invention provides a polyethylene composition and process for polymerizing the same. The polyethylene composition according to the present invention comprises the polymerization reaction of ethylene and optionally one or more ?-olefin comonomers in the presence of a catalyst system, wherein said polyethylene composition comprises at least 2 or more molecular weight distributions, measured via triple detector GPC low angle laser light scattering (GPC-LALLS), described in further details hereinbelow, wherein each molecular weight distribution has a peak, and wherein measured detector response of peak 1 divided by the measured detector response of peak 2 is in the range of from 0.50 to 0.79, for example from 0.55 to 0.77.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: November 3, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Ronald P. Markovich, Robert J. Jorgensen
  • Catalyst systems and polymerization processes for using the same
    Patent number: 10822434
    Abstract: Catalyst systems including more than one metallocene catalysts and processes for using the same are provided to produce polyolefin polymers such as polyethylene polymers.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 3, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Dongming Li, Ching-Tai Lue, Adriana S. Silva, David F. Sanders, Laughlin G. McCullough, Matthew S. Bedoya, Subramaniam Kuppuswamy
  • Catalyst system for enhanced stereo-specificity of olefin polymerization and method for producing olefin polymer
    Patent number: 10822438
    Abstract: Disclosed are a catalyst component for olefin polymerization comprising titanium, magnesium, a halogen, internal donors, in combination with a silane and oxalic acid diamides of the following formula: An olefin polymerization catalyst system consisting of the solid catalyst component, an organoaluminum compound, and an optional external electron donor compound is also disclosed. Employment of both oxalic acid diamides and silane component in the presence of internal electron donors as an elements of solid Ziegler-Natta type catalyst composition enhances stereo-specificity while maintaining excellent catalyst activity and hydrogen response, in which the modified catalyst composition produces polypropylene with good productivity and higher stereo-specificity than catalyst composition without such modification.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: November 3, 2020
    Assignee: Formosa Plastics Corporation
    Inventors: Gapgoung Kong, Lei Zhang, Chih-Jian Chen, Yiqun Fang, Demin Xu, Guangxue Xu
  • Quinolinyldiamido transition metal complexes, production and use thereof
    Patent number: 10815318
    Abstract: Quinolinyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: October 27, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John R. Hagadorn, Patrick J. Palafox, Peijun Jiang, Yaohua Gao, Xin Chen, Georgy P. Goryunov, Mikhail I. Sharikov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • Method for in situ mixing of liquid compositions with offset liquid influx
    Patent number: 10814291
    Abstract: Methods for in situ mixing of two or more different liquid compositions in a container by employing one or more liquid influxes that are offset by 1-50° from a longitudinal axis of such container.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: October 27, 2020
    Assignee: The Procter & Gamble Company
    Inventors: Hongling Chen, Boon Ho Ng, Chong Gu, Qi Zhang, Scott William Capeci
  • Process for making branched EPDM and the EPDM therefrom
    Patent number: 10800865
    Abstract: Branched ethylene-propylene-diene elastomers (bEPDM) and processes for making the bEPDM's comprising combining a catalyst precursor and an activator at a temperature within a range from 90° C. to 160° C. with ethylene, a C3 to C12 ?-olefin, a non-conjugated diene, and a dual-polymerizable diene, where the catalyst precursor is a metallocene catalyst precursor, preferably according to one of various structures including any two ligands selected from cyclopentadienyl ligands and ligands isolobal to the cyclopentadienyl group.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: October 13, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gabor Kiss, Jo Ann M. Canich, Guy J. Wouters, Robert P. Reynolds, Jr., Rainer Kolb, David J. Lohse, Florin Barsan