Transition Metal Bonded To Carbon Atom Patents (Class 526/160)
  • Patent number: 10351647
    Abstract: This invention relates to a process to polymerize olefins by contacting one or more olefins with a catalyst system comprising an organoaluminum treated layered silicate support, and a bridged metallocene compound and obtaining a polyolefin having a g?vis of 0.90 or more and an MIR of 30 or less.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: July 16, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Gregory S. Day, Laughlin G. McCullough, David F. Sanders
  • Patent number: 10308776
    Abstract: The present invention is directed to polyethylene films having improved properties. Particularly, relatively thick films having improved tear properties and methods of improving tear, and multilayer films having improved dart impact strength and methods of improving the Dart impact strength.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: June 4, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David Michael Fiscus, Danny Van Hoyweghen
  • Patent number: 10301340
    Abstract: Nickel nanoparticles can be synthesized using a variety of precursors (e.g., nickel amides [Ni(NR2)2], alkyls [NR2], and alkoxides [Ni(OR)2]).
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: May 28, 2019
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Timothy J. Boyle, LaRico Juan Treadwell
  • Patent number: 10233363
    Abstract: A hot melt adhesive composition includes (A) 10-95 wt % of a random or homogeneous propylene-based interpolymer having: (i) a comonomer content of at least one of C2 and C4-10 a-olefin of 7 wt % to 49 wt % based on the total weight of the propylene-based interpolymer, (ii) an MWD of 4 or less, (iii) a density of 0.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: March 19, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Yi Jin, Kim L. Walton, Gary R. Marchand
  • Patent number: 10227543
    Abstract: A lubricant composition includes a lubricant base oil (A) having a kinematic viscosity at 100° C. of 1 to 10 mm2/s, and an ethylene/?-olefin copolymer (B) in which (B1) the peak top molecular weight is 3,000 to 10,000, (B2) the copolymer shows no melting peak, (B3) the value B is not less than 1.1 and (B4) the kinematic viscosity at 100° C. is 140 to 500 mm2/s. The lubricant composition has a kinematic viscosity at 100° C. of not more than 20 mm2/s, a peak top of molecular weight in the range of 3,000 to 10,000, and a weight fraction of components having a molecular weight not less than 20,000 of 1 to 10% relative to all components having a molecular weight not less than the molecular weight that gives the peak top.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: March 12, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shota Abe, Ryousuke Kaneshige
  • Patent number: 10221264
    Abstract: This invention provides activator precursor compositions and activator compositions. The activator precursor compositions are formed from a support material, a linking compound, and polyfunctional compounds having at least two aromatic groups in which at least two of said aromatic groups each has at least one polar moiety thereon. The activator compositions are formed from a support material, a linking compound, an aluminoxane, and a polyfunctional compound having at least two aromatic groups in which at least two of said aromatic groups each has at least one polar moiety thereon. Also provided are catalyst compositions, processes for forming catalyst compositions, and polymerization processes utilizing the catalyst compositions of this invention.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 5, 2019
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Steven P. Diefenbach, Min Li, Matthew Grant Thorn, Lubin Luo
  • Patent number: 10184045
    Abstract: The present invention is directed to an elastomer composition comprising an ethylene/?-olefin/diene modified interpolymer, a very low density polyethylene component, and a propylene polymer component, wherein the propylene polymer component comprises at least one branched polypropylene. The inventive compositions are particularly suitable for fabricating thermoformed non-carpet automotive flooring.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: January 22, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: James T. Seliskar, James D. Oelberg
  • Patent number: 10131772
    Abstract: Provided are a rubber composition for a base tread capable of improving fuel efficiency, handling stability, and durability (flex crack growth resistance) in a balanced manner, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for a base tread, including: a rubber component and a reinforcing agent, the rubber component including natural rubber, a butadiene rubber (1) containing 1,2-syndiotactic polybutadiene crystals, a butadiene rubber (2) synthesized in the presence of a rare earth catalyst, and a modified butadiene rubber (3) having a cis content of not more than 50% by mass.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: November 20, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Toshikazu Kondo
  • Patent number: 9982171
    Abstract: A hot melt adhesive composition containing a functionalized polymer, namely, a metallocene catalyzed polyolefin elastomer grafted with maleic anhydride, together with a non-functionalized secondary polymer, namely, a metallocene catalyzed random or block polyolefin elastomer having a melt index equal to or greater than 15, a first tackifying resin having a softening point of at least 95° C., and a wax. The composition may optionally include an aromatic reinforcing resin having a softening point equal to or higher than 115° C., and a plasticizer. These hot melts provide superior hot tack, excellent adhesion, flexibility, and heat resistance above 150° F. in applications such as rigid packaging, hot fill packaging, and bottle labeling.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: May 29, 2018
    Assignee: Bostik, Inc.
    Inventors: Monina D. Kanderski, Michael D. Vitrano
  • Patent number: 9828450
    Abstract: Provided is a propylene-based elastomer having high tacticity and excellent mechanical properties. The propylene-based elastomer includes 50% by weight or more of a propylene-based repeating unit, and satisfies a particular relationship between an ethylene content and tacticity.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: November 28, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Seul Ki Kim, Eun Jung Lee, In Sung Park, Choong Hoon Lee, Byoung Soo Kim
  • Patent number: 9803037
    Abstract: This invention relates to a compound represented by the formula: TyLAMXn-2 wherein: A is a substituted or unsubstituted tetrahydro-as-indacenyl group bonded to M; L is substituted or unsubstituted monocyclic or polycyclic arenyl ligand or monocyclic or polycyclic heteroarenyl ligand bonded to M; M is a group 3, 4, 5, or 6 transition metal (preferably group 4); T is a bridging group bonded to L and A; y is 0 or 1, indicating the absence or presence of T; X is a leaving group, typically a univalent anionic ligand, or two Xs are joined and bound to the metal atom to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene; n is the oxidation state of M and is 3, 4, 5, or 6.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: October 31, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
  • Patent number: 9783625
    Abstract: The invention provides a specific metallocene compound and an olefin polymerization catalyst for use for a catalyst for producing an olefin polymer having a sufficiently high molecular weight while maintaining excellent copolymerizability at a polymerization temperature and under polymerization conditions industrially advantageous in polymerization of an olefin such as ethylene or the like, and provides a method for producing an olefin polymer using the catalyst.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: October 10, 2017
    Assignee: JAPAN POLYETHYLENE CORPORATION
    Inventors: Koji Itagaki, Tsutomu Sakuragi, Takayoshi Takahashi
  • Patent number: 9637566
    Abstract: The present invention relates to a method for preparing a supported metallocene catalyst, and a method for preparing polyolefin using the same, in which the supported metallocene catalyst prepared from the simple process according to the method for preparing the supported metallocene catalyst of the present invention can apply to the polymerization of the polyolefin that is polymerized at low pressure or high pressure; the molecular weight distribution of polyolefin prepared can be easily controlled; and there are effects such that its catalyst activity is significantly higher than that of the existed supported metallocene catalyst, and the molecular weight distribution can be easily controlled.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: May 2, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Hyuck-Ju Kwon, San-Ak Hwang, Dong-Gil Lee, Churl-Young Park
  • Patent number: 9605100
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: March 28, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Errun Ding, Paul DesLauriers, Yongwoo Inn, Lili Cui, Qing Yang, Ashish M. Sukhadia, Guylaine St. Jean, Richard M. Buck
  • Patent number: 9604903
    Abstract: A process of metathesizing a feedstock in the presence of a metathesis catalyst and at least one catalyst enhancer. The catalyst enhancer can be selected from a sacrificial catalyst or a non-catalyst enhancer. The process exhibits improved reaction times and/or the metathesis catalyst can be used at very low concentrations.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: March 28, 2017
    Assignee: CRODA INTERNATIONAL PLC
    Inventors: Bastiaan Wels, Hans Ridderikhoff, Tanja Van Bergen-Brenkman, Dessy Liminto
  • Patent number: 9587056
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer having excellent processability. The copolymer according to the present invention has a high molecular weight and a broad molecular weight distribution and exhibits an excellent processability and an improved mechanical physical property, and thus can be effectively used for the application in need thereof.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: March 7, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yu Taek Sung, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Se Young Kim, Sung Min Lee, Dong Hoon Jeong, Eun Young Shin, Hyun Jee Kwon
  • Patent number: 9523017
    Abstract: The present invention provides a mono coating film type waterborne coating composition comprising halogen free polyolefin resin, acryl polyol, acryl emulsion, and a solvent. According to the present invention, adhesion to a polyolefin substrate is excellent, and physical/chemical properties may be maintained with a single coating film instead of the currently used dual coating films, by a halogen free waterborne composition with physical/chemical properties similar to or more excellent than the existing oil coating or halogen-containing coating composition. Since these effects may be sufficiently obtained with a single coating film, consumption of coating may be reduced about 30˜40% compared to the existing method, and particularly, cost reduction may be expected through decrease in equipment required for dual coating film, energy for drying coating film, attractive force of coating, productivity increase, and the like.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: December 20, 2016
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Chai-Ki Lee, Young-Tae Park, Peng-Sam Park
  • Patent number: 9512283
    Abstract: This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (Xd) greater than 0. The ethylene interpolymer products have a melt index from about 0.4 to about 100 dg/minute, a density from about 0.950 to about 0.970 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 55% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: December 6, 2016
    Assignee: NOVA Chemicals (International S.A.
    Inventors: XiaoChuan Wang, Tieqi Li, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman
  • Patent number: 9502705
    Abstract: A microporous membrane includes a low melting polypropylene, the low melting polypropylene being a polypropylene homopolymer or copolymer having an MFR?2.0×102, a Tm of 85.0° C. to 130.0° C., and a Te-Tm?10° C.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 22, 2016
    Assignee: Toray Battery Separator Film Co., Ltd.
    Inventors: Patrick Brant, Takeshi Ishihara, Satoshi Miyaoka, Donna J. Crowther, Koichi Kono
  • Patent number: 9493593
    Abstract: The present invention relates to a long-chain branched elastic terpolymer capable of satisfying excellent processability and elasticity (flexibility) at the same time, which is obtained in the presence of a Group IV transition metal catalyst, and a preparation method thereof. The elastic terpolymer is a copolymer of ethylene, an alpha-olefin having 3 to 20 carbon atoms, and a diene, wherein i) its weight average molecular weight measured by GPC is 100,000 to 500,000, and ii) its LCB Index which is a ratio of 1st harmonics of storage modulus to 5th harmonics of storage modulus measured at 125° C. using a rubber process analyzer according to a LAOS (Large Angles of Oscillation and high Strains) method has a positive value.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: November 15, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Sun Keun Kim, Sung Ho Park, Sung Cheol Yoon, Jun Seok Ko, Soo Young Choi
  • Patent number: 9481747
    Abstract: The present invention relates to an olefin-based polymer including an elution temperature 1 (Te1) and an elution temperature 2 (Te2), which are elution temperatures of the olefin-based polymer in a temperature range from ?20° C. to 130° C. when measuring temperature rising elution fractionation (TREF) and having branch gradient number (BGN) from ?1.0 to ?0.001 when measuring chromatography Fourier transform infrared spectroscopy (GPC FT-IR).
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: November 1, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Sang Eun Park, Hae Woong Park, Young Woo Lee, Choong Hoon Lee, Don Ho Kum
  • Patent number: 9376512
    Abstract: This invention relates to processes to produce polyethylene involving contacting ethylene with a metallocene catalyst system; wherein the catalyst system comprises: a stoichiometric activator; and a metallocene compound. The metallocene catalyst system is also disclosed.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: June 28, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Patrick Brant, John R. Hagadorn, Jacqueline A. Lovell
  • Patent number: 9365788
    Abstract: This invention is directed to a two-step process for the preparation of improved poly alpha olefins wherein the first step involves oligomerizing low molecular weight linear alpha olefins in the presence of a single site catalyst and the second step involves oligomerization of at least a portion of the product from the first step in the presence of an oligomerization catalyst. The dimer product from the first oligomerization is characterized by a tri-substituted vinylene olefin content of at least 25 wt %.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: June 14, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Craig J. Emett, Mark P. Hagemeister, Bruce A. Harrington, Chon Y. Lin, Phillip T. Matsunaga, Charles J. Ruff, Kevin B. Stavens
  • Patent number: 9360604
    Abstract: The present invention provides polymeric materials arranged as photonic crystals, or portions of photonic crystals, having properties which can be easily tuned over a large range of wavelengths upon exposure to an external stimulus. In some embodiments, the photonic crystals comprise at least one portion which can undergo a change in a physical, chemical, dielectric, or other property upon exposure to an altering stimulus, resulting in a change in a diffracted wavelength of electromagnetic radiation (e.g, light) by the photonic crystal. Embodiments of the invention may advantageously exhibit large stop band tunability and rapid response times. Photonic crystals of the invention may be useful in a wide variety of applications, such as colorimetric sensors, active components of simple display devices, electrically controlled tunable optically pumped laser, photonic switches, multiband filters, and the like.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: June 7, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Youngjong Kang, Joseph Walish, Edwin L. Thomas
  • Patent number: 9334348
    Abstract: The invention provides an ethylene-based polymer comprising the following properties: A) a “weight fraction (w) of molecular weight greater than 106 g/mole, based on the total weight of polymer, and as determined by GPC(abs),” that meets the following relationship: w<A+B(I2), where A=0.090, and B=?4.00×10-3 (min/dg); B) a G? value that meets the following relationship: G?<C+D log(I2), where C=162 Pa, and D=?90.0 Pa/log (dg/min); C) a melt index (I2) from 1 to 20 dg/min; and D) chloroform extractable that has a maximum Mw(conv) of less than, or equal to, 4,000 g/mole.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 10, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Teresa P. Karjala, Cornelis F. J. den Doelder, Stefan Hinrichs
  • Patent number: 9315605
    Abstract: The present invention relates to a method of producing an elastomer. Specifically, the method of producing an elastomer according to the present invention comprises a step of polymerizing ethylene, propylene, and optionally, a diene monomer in the presence of a catalyst composition containing a transition metal compound. The method of producing an elastomer according to the present invention makes it possible to prepare a high molecular weight, ethylene-propylene or ethylene-propylene-diene, elastic copolymer at a high temperature.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: April 19, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Eun-Jung Lee, Sung-Soo Park, Beom-Doo Seo, Cheon-Il Park, Choong-Hoon Lee, Jong-Joo Ha, Jung-A Lee
  • Patent number: 9260358
    Abstract: The invention describes a process for oligomerization of the olefins into compounds or into a mixture of compounds of general formula CpH2p with 4?p?80 that implements a catalytic composition that comprises at least one organometallic complex of an element of group IV that is selected from among titanium, zirconium, or hafnium, whereby said organometallic complex contains at least one aryloxy-type (or phenyloxy-type) ligand that is functionalized by a heteroatom that is selected from among nitrogen, oxygen, phosphorus or sulfur or by an aromatic group.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: February 16, 2016
    Assignee: IFP Energies Nouvelles
    Inventors: Jean-Benoit Cazaux, Lionel Magna, Lucien Saussine
  • Patent number: 9255162
    Abstract: Process for the polymerization of olefins in a gas phase fluidized bed reactor, by i) passing a fluidizing gas to the reactor to fluidize a bed of polymer particles therein, ii) withdrawing the fluidizing gas from the reactor, iii) cooling all or a portion of the fluidizing gas withdrawn from the reactor to a temperature at which a portion of the components of the fluidizing gas condense to form condensed liquid, and iv) passing condensed liquid and non-condensed components of the fluidizing gas back to the reactor. A reservoir of condensed liquid downstream of the cooling step is provided, and variations in the inventory of the condensed liquid are made in order to control the temperature in the reactor.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: February 9, 2016
    Assignee: INEOS EUROPE AG
    Inventors: Guillaume Lajus, Rupert Parkinson, Leslie William Bolton
  • Patent number: 9228036
    Abstract: The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (12)>2.0 dg/min; b) a Mw(abs) versus 12 relationship: Mw(abs)<A+B(I2), where A=2.40×105 g/mole, and B=?8.00×103 (g/mole)/(dg/min); and c) a G? versus 12 relationship: G?>C+D(I2), where C=127.5 Pa, and D=?1.25 Pa/(dg/min). The invention also provides an ethylene-based polymer comprising the following properties: a) a melt index (12)>2.0 dg/min; b) a G? versus 12 relationship: G?>C+D(I2), where C=127.5 Pa, and D=?1.25 Pa/(dg/min) c) a chloroform extractable (Clext) versus G? relationship: Clext.<E+FG?, where E=0.20 wt %, and F=0.060 wt %/Pa; and d) a “weight fraction (w) of molecular weight greater than 106 g/mole, based on the total weight of polymer, and as determined by GPC(abs),” that meets the following relationship: w<I?J(I2), where I=0.080, and J=?4.00×10?3 min/dg.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: January 5, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Cornelis F. den Doelder, Stefan Hinrichs, Teresa P. Karjala
  • Patent number: 9193856
    Abstract: The present invention provides a rubber composition having adequate foamability, uses thereof, a copolymer contained in the rubber composition, a rubber composition capable of providing a cross-linked foam, which has a low specific gravity and an excellent shape-retaining property even when the usage of a nonconjugated polyene is reduced, and a cross-linked rubber and a cross-linked foam, which are produced from the rubber composition.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: November 24, 2015
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hiroki Ebata, Akinori Takehara, Mitsunao Arino, Masao Kunizane, Yoshiharu Kikuchi, Takayuki Kajihara
  • Patent number: 9127105
    Abstract: Method employing a supported metallocene catalyst composition in the production of an isotactic ethylene propylene co-polymer. The composition comprises a metallocene component supported on a particulate silica support having average particle size of 10-40 microns, a pore volume of 1.3-1.6 ml/g, a surface area of 200-400 m2/g. An alkylalumoxane cocatalyst component is incorporated on the support. The isospecific metallocene is characterized by the formula: B(CpRaRb)(FlR?2)MQn??(1) or by the formula: B?(Cp?R?aR?b)(Fl?)M?Q?n???(2) In the formulas Cp and Cp? are substituted cyclopentadienyl groups, Fl and Fl? are fluorenyl groups, and B and B? are structural bridges. R? are substituents at the 2 and 7 positions, Ra and R?a are substituents distal to the bridge, and Rb and R?b are proximal to the bridge. M and M? are transition metals, Q? is a halogen or a C1-C4 alkyl group; and n? is an integer of from 0-4.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 8, 2015
    Assignee: FINA TECHNOLOGY, INC.
    Inventors: William Gauthier, David Rauscher, Jun Tian, Nathan Williams
  • Patent number: 9056931
    Abstract: A method for producing an olefin polymer including: polymerizing one or more ?-olefins each having 6 to 20 carbon atoms in the presence of a metallocene catalyst to obtain an olefin polymer, and diluting a polymerization reaction liquid with a solvent before or simultaneously with deactivation of the catalyst, thereby to lower the liquid viscosity of the polymerization reaction liquid to 10 mPa·s or less to promote deactivation and decalcification of the catalyst.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: June 16, 2015
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Jun Kohiruimaki, Masao Aida, Jun Mase, Kana Minamimoto
  • Patent number: 9051458
    Abstract: A polyethylene molding composition having a multimodal molecular mass distribution and comprising from 45 to 55% by weight of a low molecular weight ethylene homopolymer A, from 20 to 40% by weight of a high molecular weight copolymer B comprising ethylene and another olefin having from 4 to 8 carbon atoms and from 15 to 30% by weight of an ultrahigh molecular weight ethylene copolymer C can be prepared in the presence of a Ziegler catalyst in a three-stage process and is highly suitable for producing pipes having excellent mechanical properties.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: June 9, 2015
    Assignee: Basell Polyolefine GmbH
    Inventors: Joachim Berthold, Hansjörg Nitz, Werner Rothhöft, Heinz Vogt
  • Publication number: 20150141596
    Abstract: Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization with chain transfer agent.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventor: John R. Hagadorn
  • Patent number: 9029284
    Abstract: A solid particulate catalyst free from an external carrier comprising: (i) a complex of formula (I): wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R?2C—, —R?2C—CR?2—, —R?2Si—, —R?2Si—SiR?2—, —R?2Ge—, wherein each R? is independently a hydrogen atom, C1-C20-alkyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; each R1 independently is hydrogen or a linear or branched C1-C20 hydrocarbyl radical optionally containing one or more heteroatoms from groups 14-16 of the Periodic Table of the Elements; each R2 and R3 taken together form a 4-7 membered ring condensed to the benzene ring of the indenyl moiety, said ring optionally containing heteroatoms from groups 14-16, each atom forming said ring being optionally substituted with at least one R18 radical; each R18 is the same or different and may be a C1-C20 hydrocarbyl radical optionally containing one or more heteroatoms belonging to groups 14-16; each R4 is a hydrogen ato
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: May 12, 2015
    Assignee: Borealis AG
    Inventors: Luigi Resconi, Pascal Castro, Lauri Huhtanen
  • Patent number: 9023960
    Abstract: Provided is a method of producing an ?-olefin polymer including a step of polymerizing one or more kinds of ?-olefins each having 6 to 20 carbon atoms with a catalyst obtained by using a specific transition metal compound. By the method, an ?-olefin polymer having a viscosity suitable for use in a lubricating oil can be produced on an industrial scale with ease, and further, the characteristics of the product can be widely changed through the control of reaction conditions.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: May 5, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kiyokazu Katayama, Hideaki Noda, Hitomi Shimizu, Kiyohiko Yokota
  • Patent number: 9023959
    Abstract: Methods for the preparation of fluorided-chlorided silica-coated alumina activator-supports are disclosed. These activator-supports can be used in catalyst systems for the production of olefin-based polymers, such as polyethylene and polypropylene.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: May 5, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Uriah Kilgore, Qing Yang, Kathy S. Collins
  • Patent number: 9012347
    Abstract: The present invention relates to a preparation method of a metallocene catalyst. More particularly, the present invention relates to a preparation method of a supported hybrid metallocene catalyst, including the steps of treating a support having a water content of 4 to 7% by weight with trialkyl aluminum at a predetermined temperature; supporting alkyl aluminoxane on the support; and supporting a metallocene compound on the alkyl aluminoxane-supported support. According to the present invention, it is possible to prepare a supported hybrid metallocene catalyst which shows a high activity in the polymerization of olefins and enables the preparation of polyolefins having a high bulk density, by a simple process.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: April 21, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Hyeon-Gook Kim, Ki-Soo Lee, Dae-Sik Hong, Eun-Kyoung Song, Man-Seong Jeon
  • Patent number: 9012359
    Abstract: Activating supports may be suitably prepared by the following procedure (a) providing a porous mineral oxide support material, (b) treating the support with a phosphorus-containing compound, (c) treating the support from step (b) with an organometallic compound, (d) heating the functionalized support from step (c) under an inert gas and then under an atmosphere comprising oxygen, (e) fluorinating the support with a fluorinating agent, and (f) recovering an activating support. The activating supports are suitable used in combination with single site catalysts for the polymerization of olefins. The supports are most preferably used in combination with metallocene complexes. The preparative route for the activating supports provides for supported polymerization catalyst systems having excellent activities.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: April 21, 2015
    Assignee: Ineos Sales (UK) Limited
    Inventors: Melanie Muron, Gaelle Pannier, Christopher John Whiteoak, Roger Spitz, Christophe Boisson
  • Patent number: 8999875
    Abstract: The invention refers to a process for preparing a supported catalyst system for the polymerization of olefins comprising at least one active catalyst component on a support, the process comprising A) impregnating a dry porous support component with a mixture comprising at least one precatalyst, at least one cocatalyst, and a first solvent, such that the total volume of the mixture is from 0.8 to 2.0 times the total pore volume of the support component, and B) thereafter, adding a second solvent in an amount of more than 1.5 times the total pore volume of the support component. The invention refers further to a catalyst system made by this process and the use of this catalyst system for polymerization or copolymerization of olefins.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 7, 2015
    Assignee: Basell Polyolefine GmbH
    Inventors: Fabiana Fantinel, Shahram Mihan, Rainer Karer, Volker Fraaije
  • Patent number: 9000115
    Abstract: The present description relates to olefin block copolymers having excellent elasticity and processability in conjunction with enhanced heat resistance, and to a preparation method thereof. The olefin block copolymers comprise a plurality of blocks or segments that comprise ethylene or propylene repeating units and ?-olefin repeating units at different mole fractions from one another, wherein the block copolymer shows peaks at the 2? of 21.5±0.5° and 23.7±0.5° in a wide-angle x-ray diffraction (WAXD) pattern, and the peak ratio defined by (the peak area at 21.5±0.5°)/(the peak area at 23.7±0.5°) is no more than 3.0.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: April 7, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Yong Ho Lee, Manseong Jeon, Heon-Yong Kwon, Min-Seok Cho, Seon Kyoung Kim, Dae-Sik Hong, Se Hui Sohn, Ki-Soo Lee, Kyoung-Chan Lim
  • 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: 8993694
    Abstract: Provided is a homogeneous catalytic system for use in preparing an ethylene homopolymer or a copolymer of ethylene and ?-olefin, and more particularly a Group 4 transition metal compound in which a cyclopentadienyl derivative 3,4-positions of which are substituted with alkyls and an electron-donating substituent are crosslinked around a Group 4 transition metal. Also provided is a method of preparing an ethylene homopolymer or a copolymer of ethylene and ?-olefin, having high molecular weight, under high-temperature solution polymerization conditions using the catalytic system including such a transition metal compound and a co-catalyst composed of an aluminum compound, a boron compound or a mixture thereof. The catalyst according to present invention has high thermal stability and enables the incorporation of ?-olefin, and is thus effective in preparing an ethylene homopolymer or a copolymer of ethylene and ?-olefin, having various properties, in industrial polymerization processes.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: March 31, 2015
    Assignee: SK Innovation Co., Ltd.
    Inventors: Hoseong Lee, Jongsok Hahn, Dongcheol Shin, Hyosun Lee, Chunji Wu
  • Patent number: 8987394
    Abstract: Catalyst compositions containing N,N-bis[2-hydroxidebenzyl]amine transition metal compounds are disclosed. Methods for making these transition metal compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: March 24, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Qing Yang, Youlu Yu
  • Patent number: 8987398
    Abstract: The present invention relates to an ethylene-based terpolymer having high elasticity and a preparation method thereof, and more particularly, to a highly elastic, ethylene-based terpolymer, which comprises a specific molar ratio of a ethylene unit, a C6-12 ?-olefin unit and at least one functional unit selected from the group consisting of divinylbenzene and para-methylstyrene and to a method of preparing the highly elastic, ethylene-based terpolymer using a metallocene catalyst.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: March 24, 2015
    Assignee: Korea Institute of Industrial Technology
    Inventors: Dong Hyun Kim, Joon Chul Lee, Hyun Ki Kim, Tae Wan Kim
  • Patent number: 8987392
    Abstract: The present invention discloses catalyst compositions employing silicon-bridged metallocene compounds with bulky substituents. Methods for making these silicon-bridged metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: March 24, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Joel L. Martin, Qing Yang, Max P. McDaniel, Jim B. Askew
  • 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: 8980781
    Abstract: The present invention relates to novel metallocene catalysts of formula I, which is defined herein. The present invention also provides processes for making these catalysts and their use in olefin polymerisation reactions.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: March 17, 2015
    Assignee: Isis Innovation Limited
    Inventors: Dermot O'Hare, Paul Ransom, Andrew Ashley
  • Patent number: 8981023
    Abstract: This invention relates to a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst can be produced with a simple and feasible process and is characterized by an easily controllable polymerization activity. This invention further relates to use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization, which is characterized by a lowered assumption of the co-catalyst as compared with the prior art.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: March 17, 2015
    Assignees: China Petroleum & Chemical Corp., Sinopec Yangzi Petrochemical Co. Ltd.
    Inventors: Hongping Ren, Chuanfeng Li, Xiaoli Yao, Feng Guo, Zhonglin Ma, Haibin Chen, Kaixiu Wang, Jingwei Liu, Yaming Wang
  • Patent number: 8981028
    Abstract: Copolymers, especially multi-block copolymer containing therein two or more segments or blocks differing in tacticity, are prepared by polymerizing propylene, 4-methyl-1-pentene, or another C4-8 ?-olefin in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in tacticity from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: March 17, 2015
    Assignee: Dow Global Technologies LLC
    Inventor: Phillip D. Hustad