Silicon Present In Inorganic Oxygen-containing Compound Patents (Class 526/129)
  • Patent number: 10400049
    Abstract: Methods for olefin polymerization are described. The methods include a) forming a first polyolefin under a first set of polymerization conditions in the presence of a first catalyst composition and a first concentration of at least a first continuity additive composition, the first polyolefin composition having a target density, 1, and a target Flow Index, FI1; and b) forming a second polyolefin composition under a second set of polymerization conditions in the presence of a second catalyst composition and a second concentration of a second continuity additive composition, the second polyolefin composition having a target density, 2, and a target Flow Index, FI2; wherein the process is essentially free of providing a polymerization neutralizing composition between steps a) and b).
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: September 3, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Bruce J. Savatsky, R. Eric Pequeno, Brandon C. Locklear
  • Patent number: 10252967
    Abstract: Disclosed are novel bridged bi-aromatic phenol ligands and transition metal compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: April 9, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, Kevin P. Ramirez
  • Patent number: 10030092
    Abstract: Provided is a polymer that contributes to the improvement of the durability and weather resistance of rubber compositions or rubber products such as a tire, and has low crystallinity. Disclosed is a multicomponent copolymer comprising a conjugated diene unit, a non-conjugated olefin unit, and an aromatic vinyl unit, wherein the multicomponent copolymer has a main chain consisting only of an acyclic structure, and the content of cis-1,4 bonds in the entire conjugated diene unit is 50% or more.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: July 24, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Shigeki Oishi
  • Patent number: 9695254
    Abstract: The present invention describes a metallocene catalyst based on a transition metal of group 4 or 5 of the periodic table; supported on a hybrid catalytic support with aliphatic organic groups and a process for supporting metallocene on the hybrid catalytic support. The supported metallocene catalyst provides an ethylene polymer with broad or bimodal molecular weight distribution in the presence of only one metallocene complex on the support.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: July 4, 2017
    Assignee: Braskem S.A.
    Inventors: Rodrigo Brambilla, Marcia Silva Lacerda Miranda, Joao Henrique Zimnoch dos Santos, Fernando Silveira
  • Patent number: 9315591
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: April 19, 2016
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Charles Ashton Garret Carter, Sergio Alejandro Guillen-Castellanos
  • Patent number: 9243092
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: January 26, 2016
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Charles Ashton Garret Carter, Robert Joseph Louis Quaiattini, Amy Elizabeth Phinney
  • Patent number: 9221935
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: December 29, 2015
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Charles Ashton Garret Carter, Sergio Alejandro Guillen-Castellanos, Yan Jiang
  • Patent number: 9127106
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: September 8, 2015
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Patrick Lam, Victoria Ker, Cliff Robert Baar, Charles Ashton Garret Carter, Yan Jiang
  • Patent number: 9102768
    Abstract: Disclosed herein are catalyst compositions containing cyclobutylidene-bridged metallocene compounds. These catalyst compositions can be used for the polymerization of olefins.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: August 11, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jeremy M. Praetorius, Carlos Cruz, Qing Yang, Max P. McDaniel, Jared L. Barr
  • Patent number: 9062134
    Abstract: The present invention provides polymerization catalyst compositions employing half-metallocene compounds with a heteroatom-containing ligand bound to the transition metal. Methods for making these hybrid metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: June 23, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Joel L. Martin, Albert P. Masino, Qing Yang, Youlu Yu
  • Patent number: 9045568
    Abstract: Vinyl terminated polyolefins with long chain branching produced with Salan catalysts having carbazole moieties.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: June 2, 2015
    Assignees: ExxonMobil Chemical Patents Inc., Ramot at Tel-Aviv University Ltd.
    Inventors: Garth R. Giesbrecht, Matthew W. Holtcamp, Moshe Kol
  • 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: 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
  • Publication number: 20150099856
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Application
    Filed: December 12, 2014
    Publication date: April 9, 2015
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Peter Phung Minh Hoang, Patrick Lam, Victoria Ker, Cliff Robert Baar, Charles Ashton Garret Carter, Yan Jiang, Martina Elissa Djatmiko
  • Publication number: 20150094433
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Application
    Filed: December 11, 2014
    Publication date: April 2, 2015
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Charles Ashton Garret Carter, Robert Joseph Louis Quaiattini, Amy Elizabeth Phinney
  • Patent number: 8993693
    Abstract: A Ziegler-Natta catalyzed ethylene copolymer having a novel composition distribution in which comonomers are incorporated into the high molecular weight polymer molecules and distributed evenly among the entire polyethylene chains, and a method for making the same are provided. The resins having a novel composition distribution have controlled molecular weight distribution which is narrower than conventional ZN-ethylene copolymers but broader than single-site catalyzed ethylene copolymers. The resins having a novel composition distribution exhibit a superior tear strength and impact strength.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 31, 2015
    Assignee: Formosa Plastics Corporation
    Inventors: Honglan Lu, Guangxue Xu
  • 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: 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: 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: 8975209
    Abstract: Disclosed is a solid support-polymethylaluminoxane complex exhibiting a higher polymerization activity than a conventional substance and being homogeneous. Also disclosed is a method for producing an olefin-based polymer having a favorable quality using the complex and a transition metal compound. The complex comprises a coating layer containing polymethylaluminoxane and trimethylaluminum on the surface of a solid support. The coating layer comprises a solid polymethylaluminoxane composition in which (i) the content of aluminum is in a range of 36 to 41 mass % and (ii) the molar fraction of methyl groups derived from a trimethylaluminum moiety to the total number of moles of methyl groups is 12 mol % or less. Also disclosed is an olefin polymerization catalyst comprising the complex and a transition metal compound represented by general formula (III): MR5R6R7R8 as catalyst components, and a method for producing a polyolefin comprising polymerizing an olefin using the catalyst.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: March 10, 2015
    Assignee: Tosoh Finechem Corporation
    Inventors: Eiichi Kaji, Etsuo Yoshioka
  • Publication number: 20150065668
    Abstract: This invention relates to racemic bridged bis(indenyl)metallocene transition metal compounds, rac-directing metallation reagents and a process to produce the racemic bridged bis(indenyl)metallocene transition metal compounds using the rac-directing metallation regents.
    Type: Application
    Filed: August 4, 2014
    Publication date: March 5, 2015
    Inventor: Glen E. Alliger
  • Patent number: 8957169
    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: February 17, 2015
    Assignees: China Petroleum & Chemical Corp., Sinopec Yangzi Petrochemical Co. Ltd.
    Inventors: Xiaoli Yao, Chuanfeng Li, Hongping Ren, Zhonglin Ma, Feng Guo, Kaixiu Wang, Jingwei Liu, Yaming Wang
  • Patent number: 8952112
    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: February 10, 2015
    Assignees: China Petroleum & Chemical Corp., Sinopec Yangzi Petrochemical Company Ltd.
    Inventors: Chuanfeng Li, Hongping Ren, Xiaoli Yao, Zhonglin Ma, Feng Guo, Kaixiu Wang, Jingwei Liu, Yaming Wang, Lijuan Yang
  • Patent number: 8952113
    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: February 10, 2015
    Assignees: China Petroleum & Chemical Corp., Sinopec Yangzi Petrochemical Company Ltd.
    Inventors: Chuanfeng Li, Hongping Ren, Xiaoli Yao, Lin Kan, Bo Liu, Zhonglin Ma, Feng Guo, Kaixiu Wang, Yaming Wang, Lijuan Yang
  • Patent number: 8952111
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: February 10, 2015
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Benjamin Milton Shaw, Patrick Lam, Victoria Ker, Cliff Robert Baar, Lee Douglas Henderson, Charles Ashton Garret Carter, Yan Jiang
  • Publication number: 20140378632
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 25, 2014
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Peter Phung Minh Hoang, Patrick Lam, Victoria Ker, Cliff Robert Baar, Charles Ashton Garret Carter, Yan Jiang
  • Patent number: 8916494
    Abstract: Methods for the vapor phase preparation of fluorided solid oxide activator-supports, using certain calcining temperatures and fluoriding temperatures, are disclosed.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: December 23, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Kathy S. Collins, Qing Yang, Tony R. Crain
  • Patent number: 8895679
    Abstract: An imine phenol compound having Structure I: wherein O and N represent oxygen and nitrogen respectively; R comprises a halogen, a hydrocarbyl group, or a substituted hydrocarbyl group; R2 and R3 can each independently be hydrogen, a halogen, a hydrocarbyl group, or a substituted hydrocarbyl group; and Q is a donor group. A method comprising contacting a catalyst composition with a monomer under conditions suitable for the formation of a polymer wherein the catalyst composition comprises a metal salt complex of an imine (bis)phenolate compound, a solid oxide, and an optional metal alkyl and wherein the metal salt complex of an imine (bis)phenolate compound has Structure XIV where M is titanium, zirconium, or hafnium; OEt2 is ethoxide, R comprises a halogen, a hydrocarbyl group, or a substituted hydrocarbyl group; and R2 comprises hydrogen, a halogen, a hydrocarbyl group, or a substituted hydrocarbyl group.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: November 25, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Mark L. Hlavinka
  • Publication number: 20140329921
    Abstract: In a process for producing polyethylene, ethylene is contacted under polymerization conditions with a slurry of a catalyst composition comprising a particulate support and a Group 4 metal complex of a phenolate ether ligand carried by the support and present in an amount so as to provide about 0.1 to about 35 ???o of Group 4 metal per gram of the support. The resultant polyethylene has a molecular weight of at least 3×105 g/mol as determined by ASTM 4020, an average particle size, d50, of less 300 microns, preferably about 100 to 250 microns, and a span, log10(d90/d10), of less than 0.4.
    Type: Application
    Filed: December 19, 2011
    Publication date: November 6, 2014
    Applicant: TICONA GMBH
    Inventors: Dominique Robert, Julia Hufen
  • 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
  • Publication number: 20140296456
    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 or oligomerization of alpha olefins also are provided.
    Type: Application
    Filed: June 18, 2014
    Publication date: October 2, 2014
    Inventors: Mark L. Hlavinka, Qing Yang, Brooke L. Small, Youlu Yu
  • Publication number: 20140288249
    Abstract: Described herein are methods comprising contacting one or more olefins with a catalyst system in a polymerization reactor at conditions sufficient to produce a polyolefin, wherein the catalyst system comprises a first metallocene catalyst compound comprising a first transition metal atom, two cyclopentadienyl ligands bound to the first transition metal atom, and two leaving groups bound to the first transition metal atom, wherein at least one leaving group is selected from the group consisting of a halo-phenoxy and a halo-alkoxy; wherein the first metallocene catalyst compound has a catalyst productivity that is at least 20% greater than a comparative metallocene catalyst compound used to produce the same polyolefin, wherein the comparative metallocene catalyst compound is the same as the first metallocene catalyst compound except neither leaving group is a halo-phenoxy or a halo-alkoxy.
    Type: Application
    Filed: November 6, 2012
    Publication date: September 25, 2014
    Applicant: UNIVATION TECHNOLOGIES, LLC
    Inventors: Lixin Sun, Francis C. Rix, Sun-Chueh Kao, Parul A. Khokhani, Phuong A. Cao
  • Patent number: 8822612
    Abstract: The present invention relates to the field of ethylene polymerization with a supported late transition metal catalyst system.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: September 2, 2014
    Assignee: Total Research & Technology Feluy
    Inventors: Sabine Sirol, Olivier Lhost
  • Publication number: 20140221585
    Abstract: A copolymer of ethylene and an alpha-olefin, said copolymer having a (a) density>0.930 g/cm3, (b) melt index (g/10 min)>4, (c) molecular weight distribution (MWD)>3.0, and (d) FNCT>250 hours, and is described suitable for use in rotomolding applications. In particular the novel copolymers result in improved impact strength, improved permeation resistance and improved environmental stress crack resistance and may suitably be prepared by use of metallocene catalysts.
    Type: Application
    Filed: November 27, 2013
    Publication date: August 7, 2014
    Applicant: Ineos Commercial Services UK Limited
    Inventor: Choon Kooi Chai
  • Patent number: 8791217
    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 or oligomerization of alpha olefins also are provided.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 29, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Qing Yang, Brooke L. Small, Youlu Yu
  • Patent number: 8785574
    Abstract: According to the invention, a single or plural kinds of bridged metallocene compounds having differing cyclopentadienyl-derived groups afford macromonomers that are a source of long-chain branches and simultaneously catalyze the repolymerization of the macromonomers into olefin polymers having a large number of long-chain branches, small neck-in in the T-die extrusion, small take-up surge and superior mechanical strength. The olefin polymerization catalysts and the polymerization processes can efficiently produce the olefin polymers.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: July 22, 2014
    Assignees: Mitsui Chemicals, Inc., Prime Polymer Co., Ltd.
    Inventors: Hideki Bando, Yasuo Satoh, Takashi Yukita, Yasuyuki Harada, Yoshiho Sonobe, Yasushi Tohi, Yusuke Sekioka, Masao Suzuki, Daisuke Tanifuji
  • Patent number: 8785576
    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: December 28, 2011
    Date of Patent: July 22, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Qing Yang
  • Patent number: 8759246
    Abstract: The present invention provides polymerization catalyst compositions employing half-metallocene compounds with a heteroatom-containing ligand bound to the transition metal. Methods for making these hybrid metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: June 24, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Joel L. Martin, Albert P. Masino, Qing Yang, Youlu Yu
  • Patent number: 8754177
    Abstract: The invention relates to a polymerization process, the polymerization process includes contacting a cyclic bridged metallocene catalyst represented by the following formula: LA(A)LBMQn wherein A is a divalent group bound to each of LA and LB; each of LA and LB are bound to M, and each Q is bound to M; LA and LB are independently selected from the group consisting of cyclopentadienyl ligands and substituted cyclopentadienyl ligands; A is a divalent bridging group comprising a heterocyclic ring comprising from 3 to 6 carbon atoms and one silyl, thus forming a 4 to 7 member divalent ring; M is a Group 4, 5, or 6 transition metal; Q is independently a halogen, a hydride, or a hydrocarbyl radical having from 1 to 20 carbon atoms; wherein n is 1 or 2; with an activator, and optionally a support, to form an activated catalyst and, subsequently, contacting the activated catalyst with ethylene and optionally, at least one C3-C8 alpha olefin comonomer.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: June 17, 2014
    Assignee: Univation Technologies, LLC
    Inventors: Donna J. Crowther, John F. Szul
  • Publication number: 20140148565
    Abstract: A method for making a solid catalyst component for use in a Ziegler-Natta catalyst includes combining in a hydrocarbon solvent a porous particulate support with a hydrocarbon soluble organomagnesium compound to form a suspension. The organomagnesium compound is halogenated followed by addition of an alcohol and the mixture is then reacted with a titanium compound followed by a reaction with at least one diether compound to form the solid catalyst component. Afterwards the reaction product is extracted with a mixture of a titanium compound and a hydrocarbon solvent. The solid catalyst component recovered is combined with an aluminum cocatalyst to form a Ziegler-Natta catalyst system for the polymerization of olefins. In particular, the catalyst system including a diether internal electron donor may have an activity and hydrogen response suitable for the production of propylene polymers having a molecular weight distribution (PI(GPC)) in the range from about 5.75 to about 9.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 29, 2014
    Applicant: Lummus Novolen Technology GmbH
    Inventors: Yvonne Denkwitz, Oliver Schuster, Andreas Winter
  • Patent number: 8735519
    Abstract: The invention is directed to a metallocene catalyst system and a process for preparing the system. The metallocene catalyst system comprises a support and metallocene bound substantially throughout the support. The selection of certain supports facilitates the production of metallocene catalyst systems having increased catalytic activity than previously recognized.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: May 27, 2014
    Assignee: Fina Technology, Inc.
    Inventors: Jun Tian, William Gauthier, David Rauscher, Shady Henry
  • Patent number: 8722819
    Abstract: In a process for producing polyethylene having a molecular weight of at least 3×105 g/mol as determined by ASTM 4020, ethylene is contacted under polymerization conditions with a slurry of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand, wherein the slurry further includes a scavenger comprising an alkyl magnesium compound.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: May 13, 2014
    Assignee: Ticona GmbH
    Inventors: Dominique Robert, Julia Hufen, Kerstin Lüdtke, Jens Ehlers, Gary Diamond, Margarete Lecrec, Guang Zhu
  • Patent number: 8716415
    Abstract: The present invention provides a method for preparing a supported metallocene catalyst, a supported metallocene catalyst prepared by the method, and a method for preparing a polyolefin using the supported metallocene catalyst. The supported metallocene catalyst according to the present invention contains catalyst components uniformly distributed deep into the whole porous carrier particles to secure a high catalytic activity and facilitates polymerization of polyolefins with high bulk density.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: May 6, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Hyeon-Gook Kim, Ki-Soo Lee, Eun-Kyoung Song, Yong-Ho Lee, Dae-Sik Hong
  • 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
  • Publication number: 20140107301
    Abstract: The present invention provides polymerization processes utilizing an ansa-metallocene catalyst system for the production of olefin polymers. Polymers produced from the polymerization processes have properties that vary based upon the presence or the absence of hydrogen and/or comonomer in the polymerization process.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Richard M. Buck, Qing Yang, Albert P. Masino, Christopher E. Wittner
  • Patent number: 8680001
    Abstract: The present invention relates to a process for preparing a catalyst solid for olefin polymerization, comprising a finely divided support, an aluminoxane and a metallocene compound, which comprises: a) firstly combining the finely divided support with the aluminoxane and subsequently b) adding the reaction product of a metallocene compound with at least one organometallic compound to the modified support, catalyst solids obtainable by this process, catalyst systems comprising these catalyst solids, their use for the polymerization of olefins and a process for the polymerization of olefins.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: March 25, 2014
    Assignee: Basell Polyolefine GmbH
    Inventors: Heike Gregorius, Volker Fraaije, Manfred Lutringshauser
  • Patent number: 8637618
    Abstract: The field of the invention relates generally to a method for preparing very-high or ultra-high molecular weight polyethylene. More particularly, the present invention related to a method of preparing very-high or ultra-high molecular weight polyethylene using a supported catalyst comprising a support, an activator and a metal-ligand complex, as well as the catalyst itself. The present invention additionally relates to a method of using a supported catalyst comprising a support, an activator and co-supported metal-ligand complexes to obtain a bi-modal molecular weight distribution of polyethylene.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: January 28, 2014
    Assignee: Symyx Solutions, Inc.
    Inventors: Gary M. Diamond, Margarete K. Leclerc, Guang Zhu