Boron Compound Contains Boron Bonded To Hydrogen Or To Carbon Atom Patents (Class 526/134)
  • Patent number: 10421829
    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: Grant
    Filed: February 26, 2018
    Date of Patent: September 24, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Francis C. Rix, Alexander D. Todd, C. Jeff Harlan
  • Patent number: 10357931
    Abstract: A system and method for the manufacture of a wind turbine blade component is described, preferably a shear web component for a wind turbine. The shear web is manufactured by using a forming tool to define a flange-shaped cavity at an end of a web member. A resin is injected into the cavity and cured to form a flange cast onto the web member. The forming tool is subsequently removed from the web member to provide a component having a load-bearing flange formed from a cured resin.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: July 23, 2019
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Klavs Jespersen, Tim Møller Hansen, Lars Nielsen
  • Patent number: 10253173
    Abstract: Provided herein are polymerization processes and polymer compositions including reactor blends formed by such polymerization processes. The polymerization processes include copolymerization using two metallocene catalyst systems: the first catalyst system capable of producing polymers having 60% or more vinyl terminations, the second catalyst system capable of producing high molecular weight polymers, preferably incorporating at least some of the polymers produced by the first catalyst system into the high molecular weight polymers. The reactor blends formed thereby therefore include first and second copolymer components, which may differ in monomer content and weight-average molecular weight (Mw). Furthermore, the reactor blends may exhibit advantageous rheological properties, at least some of which are consistent with long-chain branching. Preferred reactor blends comprise ethylene-propylene-diene (EPDM) terpolymers.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 9, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Rainer Kolb, Periagaram S. Ravishankar, Phillip T. Matsunaga, Peijun Jiang, Rhutesh K. Shah, Narayanaswami Dharmarajan
  • Patent number: 9701771
    Abstract: The present disclosure relates to metallocene catalysts for use in polymerization processes. Such catalysis may be used to generate long chain polymers with low long chain branching and high molecular weights. Additionally, the size of the polymers produced can be controlled by modifying the ratio of MAO or other activator to metallocene catalyst.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: July 11, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Sandor Nagy, Shahram Mihan, Linda N. Winslow, Ilya E. Nifant'ev, Pavel V. Ivchenko, Vladimir V. Bagrov, Igor A. Kashulin
  • Patent number: 9346728
    Abstract: The invention relates to a process for converting hydrocarbons into products containing aldehydes and/or alcohols. The invention also relates to producing olefins from the aldehyde and alcohol, to polymerizing the olefins, and to equipment useful for these processes.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: May 24, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Paul F. Keusenkothen, Frank Hershkowitz
  • Patent number: 9074035
    Abstract: In a copolymer of a conjugated diene compound and a non-conjugated olefin, the conjugated diene unit has a cis-1,4 bond content of greater than 70.5% and the non-conjugated olefin is contained in an amount of 10 mol % or more.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: July 7, 2015
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Shojiro Kaita, Olivier Tardif, Yasuo Horikawa, Hideki Kitano
  • Publication number: 20150141598
    Abstract: Disclosed herein are catalyst compositions containing boron bridged, cyclopentadienyl-indenyl metallocene compounds with an alkenyl substituent. These catalyst compositions can be used for the polymerization of olefins. For example, ethylene homopolymers produced using these catalyst compositions can be characterized by a density less than 0.97 g/cm3 and a melt index greater than 50 g/10 min.
    Type: Application
    Filed: April 17, 2014
    Publication date: May 21, 2015
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Jeffrey F. Greco, Qing Yang, Tony R. Crain
  • Publication number: 20150141599
    Abstract: Disclosed herein are catalyst compositions containing boron-bridged, cyclopentadienyl-fluorenyl metallocene compounds with an alkenyl substituent. These catalyst compositions can be used for the polymerization of olefins. For example, ethylene copolymers produced using these catalyst compositions can be characterized by a combination of a flat or a conventional comonomer distribution and low levels of long chain branching.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 21, 2015
    Inventor: Jeffrey F. Greco
  • Patent number: 9012578
    Abstract: Copolymers comprising ethylene and propylene and methods for producing such polymers are provided. The polymers are blocky copolymers having semicrystalline ethylene sequences and amorphous or low crystallinity propylene sequences. The polymers are preferably prepared using metallocene-based catalyst systems but without the use of a chain shuttling agent. The polymers may have higher melting temperatures than previously known random copolymers or blocky copolymers prepared with chain shuttling agents having similar comonomer contents. The polymers include both ethylene-rich and propylene-rich copolymers.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 21, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Rainer Kolb, Donna J. Crowther, Peijun Jiang
  • Patent number: 8993702
    Abstract: This invention relates to a transition metal catalyst compound represented by the structure: wherein M is hafnium or zirconium; each X is, independently, selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halogens, dienes, amines, phosphines, ethers, or a combination thereof; each R1 and R3 are, independently, a C1 to C8 alkyl group; and each R2, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 are, independently, hydrogen, or a substituted or unsubstituted hydrocarbyl group having from 1 to 8 carbon atoms, provided however that at least three of the R10-R14 groups are not hydrogen, compositions thereof and methods of use thereof to prepare polymers.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: March 31, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Renuka N. Ganesh, Andrew G. Narvaez, Jr., Patrick Brant
  • Patent number: 8987393
    Abstract: The invention relates to a new catalyst component for the polymerization of olefins comprising a compound of formula CyLMZp, wherein M is a Group 4-6 metal, Z is an anionic ligand, p is the number of anionic ligands, Cy is a mono- or poly-substituted cyclopentadienyl-type ligand and L is a guanidinate ligand of the formula wherein: each A is independently selected from nitrogen or phosphorus and R, R1, R2 and R3 are independently selected from the group consisting of hydrogen, hydrocarbyl, silyl and germyl residues, substituted or not with one or more halogen, amido, phosphido, alkoxy, or aryloxy radicals. The invention also relates to a catalyst system for the polymerization of olefins and a process for the polymerization of at least one olefin having 2 to 20 carbon atoms.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: March 24, 2015
    Assignee: LANXESS Elastomers B.V.
    Inventors: Gerardus Henricus Josephus Van Doremaele, Martin Alexander Zuideveld, Victor Fidel Quiroga Norambuena, Alexandra LeBlanc
  • Patent number: 8969482
    Abstract: This invention relates to a process to alter comonomer distribution in a copolymer (as compared to a copolymer made absent the Lewis base modifier) comprising contacting ethylene and one or more C3 to C40 comonomers; with a catalyst system comprising: 1) a Lewis base modifier; 2) an activator; and 3) a bridged bisindenyl group 4 transition metal metallocene catalyst compound having a hydrogen atom at least one 2 position.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: March 3, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Ian C. Stewart
  • Patent number: 8957171
    Abstract: Catalysts comprising salan ligands with carbazole moieties. Also, catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: February 17, 2015
    Assignees: ExxonMobil Chemical Patents Inc., Ramot at Tel-Aviv University Ltd.
    Inventors: Garth R. Giesbrecht, Gregory S. Day, Matthew W. Holtcamp, Moshe Kol, David A. Cano, Eric D. Whetmore, Konstantin Press
  • Patent number: 8957167
    Abstract: A polymerization process includes contacting the following in a gas-phase reactor system under polymerization conditions for making a polymer product: a metallocene-based catalyst system including a supported constrained geometry catalyst, at least one monomer, and an additive selected from a group consisting of an aluminum distearate, an ethoxylated amine, and a mixture thereof. The additive may be selected from a group consisting of an aluminum distearate, an ethoxylated amine, polyethylenimines, and other additives suitable for use in the production of polymers for food contact applications and end products, including a mixture of a polysulfone copolymer, a polymeric polyamine, and oil-soluble sulfonic acid, in a carrier fluid, and mixtures thereof.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: February 17, 2015
    Assignee: Univation Technologies, LLC
    Inventors: F. David Hussein, Kevin J. Cann, F. Gregory Stakem, Ann M. Schoeb-Wolters, Wesley R. Mariott, James M. Farley, Michael D. Awe
  • Patent number: 8957172
    Abstract: Catalysts comprising a non-symmetrical Salan ligand with a carbazole moiety. Also disclosed are catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: February 17, 2015
    Assignees: ExxonMobil Chemical Patents Inc., Ramot at Tel-Aviv University Ltd.
    Inventors: Garth R. Giesbrecht, Matthew W. Holtcamp, Moshe Kol, Gregory S. Day, David A. Cano
  • Patent number: 8952114
    Abstract: Catalysts comprising a halogenated Salan ligand. Also disclosed are catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: February 10, 2015
    Assignees: ExxonMobil Chemical Patents Inc., Ramot at Tel-Aviv University Ltd.
    Inventors: Garth R. Giesbrecht, Matthew W. Holtcamp, Moshe Kol, Gregory S. Day, Konstantin Press
  • Patent number: 8946362
    Abstract: The present invention relates to a preparation method of olefin polymers using a catalyst composition containing a transition metal compound. In detail, the present invention provides a preparation method of olefin polymer using a catalyst composition comprising a transition metal compound, wherein the preparation method comprises introducing a scavenger to a continuous solution polymerization reactor in a specific range of amount to give the olefin polymer with good productivity.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: February 3, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Don-Ho Kum, Eun-Jung Lee, Dong-Kyu Park, Choong-Hoon Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Seong-Jin Kim
  • Patent number: 8912352
    Abstract: The present invention relates to a novel ligand derived from a tetrahydroquinoline derivative, and a transition metal compound prepared using the ligand, where an amido ligand is linked to an ortho-phenylene ligand to form a condensed ring and a 5-membered cyclic pi-ligand linked to the ortho-phenylene ligand is fused with a heterocyclic thiophene ligand. Compared with the catalysts not fused with a heterocyclic thiophene ligand, the transition metal compound of the present invention as activated with a co-catalyst has higher catalytic activity in olefin polymerization and provides a polymer with higher molecular weight.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: December 16, 2014
    Assignee: Lotte Chemical Corporation
    Inventors: Bun-Yeoul Lee, Ji-Hae Park, Seung-Hyun Do
  • Patent number: 8877880
    Abstract: The invention relates to a method for controlling properties of a polyolefin. More particularly, the invention relates to a method for controlling certain properties of an ethylene-butene copolymer and compositions thereof using isobutylene and/or other C4 components.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: November 4, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Bulawa, Periagaram S. Ravishankar, Anthony J. Dias
  • Patent number: 8877881
    Abstract: This invention relates to Group 4 catalyst compounds containing anionic bidentate nitrogen/oxygen based ligands catalyst compounds useful for polymerization and or oligomerization of unsaturated monomers. The catalyst compounds are particularly useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: November 4, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Garth R. Giesbrecht
  • Patent number: 8871878
    Abstract: The present invention generally relates to a new method of polymerizing ethylene. In one embodiment, the present invention relates to compounds utilized in the polymerization of ethylene and to a synthesis/polymerization method that uses same. In another embodiment, branched polyethylene is synthesized from an ethylene monomer using, in this embodiment, at least one nickel iminophosphonamide (PN2) complex. In still another embodiment, the reaction of (phenyl)(triphenylphosphine)(diphenyl-bis(trimethylsilylimino)phosphorato)-nickel, with Rh(acac) (C2H4)2 and ethylene yield a branched polyethylene. In an alternative of this embodiment, the reaction of (phenyl)(triphenylphosphine)(methyl-cis(trimethylsilyl)amino-bis(trimethylsilylimino)phosphorato)-nickel and ethylene, with or without Ni(COD)2, yields a branched polyethylene.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: October 28, 2014
    Assignee: The University of Akron
    Inventors: Scott Collins, Russell A Stapleton
  • Patent number: 8853339
    Abstract: This invention relates to a method for producing a copolymer of a conjugated diene compound and an unconjugated olefin other than the conjugated diene compound having a high cis-1,4 bond content of a conjugated diene compound portion, and more particularly to a method for producing a copolymer characterized by comprising a step of polymerizing a conjugated diene compound and an unconjugated olefin other than the conjugated diene compound in the presence of a polymerization catalyst composition including at least one complex selected from a metallocene complex represented by the following general formula (I): (wherein M is a lanthanoid element, scandium or yttrium, and CpR is independently a non-substituted or substituted indenyl, and Ra-Rf are independently an alkyl group having a carbon number of 1-3 or a hydrogen atom, and L is a neutral Lewis base, and w is an integer of 0-3) and so on.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: October 7, 2014
    Assignee: Bridgestone Corporation
    Inventors: Shojiro Kaita, Olivier Tardif, Yasuo Horikawa
  • Patent number: 8841394
    Abstract: This invention relates to a vinyl terminated higher olefin copolymer having an Mn of 300 g/mol or more (measured by 1H NMR) comprising: (i) from about 20 to about 99.9 mol % of at least one C5 to C40 higher olefin monomer; and (ii) from about 0.1 to about 80 mol % of propylene; wherein the higher olefin copolymer has at least 40% allyl chain ends. The copolymer may also have an isobutyl chain end to allyl chain end ratio of less than 0.7:1 and/or an allyl chain end to vinylidene chain end ratio of greater than 2:1.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: September 23, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Matthew W. Holtcamp, John R. Hagadorn, Charles J. Ruff, George Rodriguez, Patrick Brant
  • Patent number: 8835587
    Abstract: Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: September 16, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowthers, Peijun Jiang, Rainer Kolb
  • Patent number: 8835580
    Abstract: The invention relates to a catalyst for the polymerization of norbornene monomers comprising transition metal complex (A) represented by formula (1); and a method for producing a norbornene (co)polymer, especially a norbornene copolymer containing a monomer unit represented by formulae (2) and (3), wherein a norbornen monomer is homopolyzed or copolymerized in the presence of the polymerization catalyst. Preferable examples of the transition metal complex (A) include (?-allyl){4-(2,6-diisopropylphenylimino)-2-penten-2-olato-?2N,O}palladium and (?-allyl){4-(1-naphthylimino)-2-penten-2-olato-?2N,O}palladium. In the formulae, the symbols are as defined in the description. A norbornene (co)polymer which has excellent transparency, excellent heat resistance, excellently low water absorption and excellent electrical insulation characteristics can be efficiently produced by the present invention.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 16, 2014
    Assignee: Showa Denko K.K.
    Inventors: Satoshi Fujibe, Nobuyuki Kibino
  • Patent number: 8829127
    Abstract: The invention relates to a continuous polymerization process for preparing a random ethylene interpolymer which comprises: (A) polymerizing ethylene, and an ?-olefin comonomer selected from propylene and/or 1-butene, and mixtures thereof, under continuous random polymerization conditions in the presence of single site catalyst system employing an ionic activator having cyclic ligands shielding a central charge bearing atom, at a temperature of 140° C. to 250° C. at a conversion of ethylene of 80 to 99% and a comonomer conversion of from at least 20%; and (B) devolatilizing the polymer to provide an ethylene copolymer having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.01 to 100 g/10 min and an I21/I2 of from 30 to 400.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: September 9, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Narayanaswami Raja Dharmarajan, Rui Zhao, Bruce Allan Harrington, George James Pehlert, Periagaram S. Ravishankar, Kent L. Chasey
  • Patent number: 8816027
    Abstract: This invention relates to a homogenous process for making a vinyl terminated propylene polymer, wherein the process comprises: contacting, propylene, under polymerization conditions, with a catalyst system comprising an activator and at least one metallocene compound, where the metallocene compound is represented by the formula: where: M is hafnium or zirconium; each X is a group bound to M as described herein; each R1 and R2 is, independently, a C1 to C10 alkyl group; each R3 is, independently, hydrogen; each R4, R5, and R6, is, independently, hydrogen or a substituted or unsubstituted hydrocarbyl group, a heteroatom or heteroatom containing group; T is a bridging group as described herein; and further provided that any of adjacent R4, R5, and R6 groups may form a fused ring or multicenter fused ring system where the rings may be aromatic, partially saturated or saturated, wherein the activator comprises a non-coordinating anion.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: August 26, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Patrick Brant, Carlos U. De Garcia, Jacqueline A. Lovell
  • Patent number: 8802584
    Abstract: A supported catalyst system comprising a phosphinimine ligand containing catalyst on a porous inorganic support treated with a metal salt has improved reactor continuity in a dispersed phase reaction in terms of initial activation and subsequent deactivation. The resulting catalyst has a lower consumption of ethylene during initiation and a lower rate of deactivation. Preferably the catalyst is used with an antistatic agent.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: August 12, 2014
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Lee Douglas Henderson, Peter Phung Minh Hoang, Ian Ronald Jobe, Xiaoliang Gao
  • Publication number: 20140221587
    Abstract: Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins.
    Type: Application
    Filed: January 20, 2014
    Publication date: August 7, 2014
    Inventors: John R. Hagadorn, Matthew S. Bedoya, Peijun Jiang
  • Publication number: 20140221586
    Abstract: The present invention provides a method of producing a polyolefin composition comprising contacting a binuclear metallocene pre-catalyst and a co-catalyst, adding a excess of a metal alkyl, then adding a first olefin monomer. The method allows for the production of polyolefins with a highly stereoregular stereochemical micrsostructure through living coordination polymerization in which rapid reversible chain transfer between a racemic mixture of a chiral active transition metal propagating center and multiple equivalents of inert main group metal alkyl is competitive with chain-growth propagation at the active center.
    Type: Application
    Filed: January 13, 2014
    Publication date: August 7, 2014
    Applicant: University of Maryland, College Park
    Inventor: Lawrence R. SITA
  • Publication number: 20140200313
    Abstract: A process for the preparation by ethylene polymerization of at least one dialkyl magnesium compound of formula R—(CH2—CH2)n—Mg—(CH2—CH2)m—R? in which R and R?, identical or different, represent aryl, benzyl, allyl or alkyl groups and in which the integers n and m, identical or different, represent average —CH2—CH2— chain formation numbers greater than 1, the process including a single stage of mixing the following components: at least one ligand or one ligand precursor, at least one rare earth salt, at least one dialkyl magnesium compound of formula R—Mg—R?, and ethylene, in a medium allowing contact between the components of the above mixture.
    Type: Application
    Filed: July 20, 2012
    Publication date: July 17, 2014
    Applicant: UNIVERSITE DE LILLE 1 SCIENCE ET TECHNOLOGIES
    Inventors: Thomas Chenal, Andre Mortreux, Marc Visseaux
  • Patent number: 8759466
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 24, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
  • Patent number: 8759461
    Abstract: The present invention relates to a novel post metallocene-type ligand compound, to a metal compound containing the ligand compound, to a catalytic composition containing the metal compound, and to a method for preparing same, as well as to a method for preparing olefin polymers using the catalytic composition. The present invention provides a catalyst for preparing special polyolefin-based polymers having excellent activity.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: June 24, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sang-Jin Jeon, Hoon Chae, Cheon-Il Park, Kyung-Seop Noh, Won-Hee Kim
  • Publication number: 20140171605
    Abstract: The invention relates to a process for the production of high density polyethylene by polymerisation of ethylene in the presence of a silylchromate based catalyst and a reducing agent is characterized in that the reducing agent comprises the reaction mixture of an alkyl aluminium compound and/or boron compound and a nitrogen containing compound. The alkyl aluminium compound is an organo aluminium compound having the formula AlR3, in which R is a hydrocarbon radical containing 1-10 carbon atom and the nitrogen containing compound comprises —NH2, —NHR, —NR2, wherein R may be alkyl or a substituted alkyl having from 1 to 40 carbon atoms.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 19, 2014
    Applicant: SAUDI BASIC INDUSTRIES CORPORATION
    Inventor: Vugar O. Aliyev
  • Patent number: 8748546
    Abstract: The present invention provides dual catalyst systems and polymerization processes employing these dual catalyst systems. The disclosed polymerization processes can produce olefin polymers at higher production rates, and these olefin polymers may have a higher molecular weight and/or a lower melt index.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: June 10, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Albert P. Masino, Rex E. Murray, Qing Yang, Steve J. Secora, Kumudini C. Jayaratne, William B. Beaulieu, Errun Ding, Gary L. Glass, Alan L. Solenberger, Ted H. Cymbaluk
  • Patent number: 8742049
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 3, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
  • Patent number: 8735521
    Abstract: A cycloolefin-based copolymer and a hydrogenation process are disclosed, wherein the cycloolefin-based copolymer is prepared by using: a monomer which can be easily and economically obtained by hydrogenating dicyclopentadiene that occupies much of C5 fractions from naphtha cracking; or a monomer which can be obtained by chemically bonding three molecules of cyclopentadiene via Diels-Alder reactions and then hydrogenating the cyclopentadiene. The copolymer can be used in various fields as an amorphous transparent resin.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: May 27, 2014
    Assignee: Kolon Industries, Inc.
    Inventors: Ik Kyung Sung, Woon Sung Hwang, Jung Hoon Seo, Bun Yeoul Lee, Sung Jae Na, Seung Taek Yu
  • Patent number: 8729200
    Abstract: The present invention provides an ethylene-based polymer composition characterized by a Comonomer Distribution Constant in the range of from greater than 45 to less than 400, wherein the composition has less than 120 total unsaturation unit/1,000,000C, and method of producing the same.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: May 20, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Theresa J. Hermel-Davidock, Mehmet Demirors, Sarah M. Hayne, Rongjuan Cong
  • Patent number: 8716414
    Abstract: The present invention relates to a mixed metallocene catalyst composition including a first metallocene catalyst and a second metallocene catalyst, and a method for preparing a polyolefin using the catalyst composition. According to the catalyst composition and the preparation method, provided is a polyolefin having a wide molecular weight distribution and superior mechanical properties and processability.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: May 6, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jong-Joo Ha, Choong-Hoon Lee, Don-Ho Kum, Eun-Jung Lee, Beom-Doo Seo
  • Patent number: 8703886
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes use a catalyst system containing at least two activator-supports. One activator-support is a halided solid oxide, and the other activator-support is a sulfated solid oxide and/or phosphated solid oxide.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: April 22, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Qing Yang, Max P. McDaniel, Tony R. Crain, Kathy S. Collins
  • Patent number: 8703887
    Abstract: The invention is directed to a process for the production of high density polyethylene by polymerization of ethylene in the presence of a supported chromium oxide based catalyst and an activator characterized in that the activator comprises the reaction mixture of a boron compound and/or an alkyl aluminum compound and a nitrogen containing compound wherein the boron compound is a (C1-C10) alkyl boron compound or a (C5-C20) aromatic boron compound, wherein the alkyl aluminum compound is an organo aluminum compound having the formula AIR3 in which R is a hydrocarbon radical containing 1-10 carbon atom and wherein the nitrogen containing compound comprises —NH2, —NHR, —NR2, wherein R may be an alkyl or a substituted alkyl having from 1 to 40 carbon atoms.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: April 22, 2014
    Assignee: Saudi Basic Industries Corporation
    Inventors: Wei Xu, Ali Saad Headan, Sirajudeen Mohamed, Atieh Aburaqabah
  • Publication number: 20140058041
    Abstract: The invention provides novel polymer compositions and methods for preparing such compositions. The invention also provides methods for polymerizing various unsaturated monomers, including naturally occurring or plant biomass-derived renewable acrylic monomers. The monomers can be rapidly polymerized using various organic catalysts or organometallic catalysts, as described herein. In one embodiment, nearly perfectly isotactic polymers (mmmm>99%) can be prepared using a C2-symmetric zirconocenium catalyst.
    Type: Application
    Filed: August 26, 2013
    Publication date: February 27, 2014
    Applicant: Colorado State University Research Foundation
    Inventors: Eugene Y. CHEN, Yangjian HU, Yuetao ZHANG
  • Patent number: 8658556
    Abstract: This invention relates to a method to polymerize olefins comprising contacting olefins with a catalyst system comprising a transition metal catalyst compound and: 1) at least two NCA activators represented by the formula: Zd+ (Ad-), where Z is a Bronsted acid or a reducible Lewis acid, Ad- is a boron containing NCA, d is 1, 2, or 3, and where Z is a Bronsted acid and Z is a reducible Lewis acid in the first and second NCA activators, respectively; or 2) at least two NCA activators, one as described in Formula I and one not as described in Formula I; or 3) two NCA activators as described in Formula I except that the N in the second NCA in the ArNHal is at a different position in the nitrogen containing aromatic ring than the N in the first NCA.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: February 25, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Ian C. Stewart
  • Publication number: 20140039137
    Abstract: Disclosed herein are polyalphaolefins and Salan cataylsts, catalyst systems, and processes to produce the polyalphaolefins.
    Type: Application
    Filed: June 19, 2013
    Publication date: February 6, 2014
    Inventors: Garth R. Giesbrecht, Matthew W. Holtcamp, Moshe Kol, Konstantin Press
  • Publication number: 20140011900
    Abstract: Methods for producing a silyl-functionalized polyolefin with silyl monomer incorporation are provided. The method includes reacting a silicon-containing olefin with an ?-olefin, in the presence of a catalytic amount of a group IV catalyst for a time sufficient to produce a silyl-functionalized polyolefin.
    Type: Application
    Filed: January 17, 2012
    Publication date: January 9, 2014
    Applicants: NORTHWESTERN UNIVERSITY, DOW CORNING CORPORATION
    Inventors: Gary Thomas Burns, Tobin J. Marks, Francois De Buyl, Valerie Smits, Peng-Fei Fu
  • Patent number: 8623974
    Abstract: This invention relates to a process for polymerization, comprising (i) contacting, at a temperature greater than 35° C., one or more monomers comprising ethylene and/or propylene, with a catalyst system comprising a metallocene catalyst compound and an activator, (ii) converting at least 50 mol % of the monomer to polyolefin; and (iii) obtaining a branched polyolefin having greater than 50% allyl chain ends, relative to total unsaturated chain ends. The invention also relates to the branched polyolefins and functionalized branched polyolefins.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: January 7, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Peijun Jiang, Patrick Brant
  • Patent number: 8623976
    Abstract: The present invention provides a novel catalyst composition comprising a metallocene complex, and a novel producing method for various polymer compounds. Preferably, the invention provides a novel polymer compound, and a producing method thereof. Specifically, the invention provides a polymerization catalyst composition, comprising: (1) a metallocene complex represented by the general formula (I), including: a central metal M which is a group III metal atom or a lanthanoid metal atom; a ligand Cp* bound to the central metal and including a substituted or unsubstituted cyclopentadienyl derivative; monoanionic ligands Q1 and Q2; and w neutral Lewis base L; and (2) an ionic compound composed of a non-ligand anion and a cation: where w represents an integer of 0 to 3.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: January 7, 2014
    Assignee: RIKEN
    Inventors: Zhaomin Hou, Yunjie Luo, Xiaofang Li, Jens Baldamus
  • Patent number: 8618229
    Abstract: The present invention discloses catalyst compositions employing transition metal complexes with a thiolate ligand. Methods for making these transition metal complexes and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: December 31, 2013
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Mark L. Hlavinka
  • Publication number: 20130317187
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.
    Type: Application
    Filed: July 30, 2013
    Publication date: November 28, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
  • Patent number: RE45219
    Abstract: Provided are a photoreactive polymer that includes a multi-cyclicmulticyclic compound at as its main chain and a method of preparing the same. The photoreactive polymer exhibits excellent thermal stability since it includes a multi-cyclicmulticyclic compound having a high glass transition temperature at as its main chain. In addition, the photoreactive polymer has a relatively large vacancy so that a photoreactive group can move relatively freely in the main chain therein. As a result, a slow photoreaction rate, which is a disadvantage of a conventional polymer material used to form an alignment layer for a liquid crystal display device, can be overcome.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 28, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Heon Kim, Sung Ho Chun, Keon Woo Lee, Sung Joon Oh, Kyungjun Kim, Jungho Jo, Byung Hyun Lee, Min Young Lim, Hye Won Jeong