And A Third Component C (i.e., An Additive Other Than A Saturated Hydrocarbon Or An Aromatic Hydrocarbon Free Of Aliphatic Or Cycloaliphatic Unsaturation) Patents (Class 502/118)
  • Patent number: 10336846
    Abstract: The invention provides a process to form an ethylene/a-olefin interpolymer, comprising at least the following steps A) through C): A) polymerizing, in at least one reactor, at least one reaction mixture comprising ethylene and the a-olefin, in a solution polymerization, and in the presence of at least the following components I), II) and III): I) at least one compound of Structure 1, as described herein; II) at least one co-catalyst, as described herein; III) at least one compound of Structure 2, as described herein; B) separating the final polymer solution into at least a polymer-rich solution and a polymer-free solution; and optionally, at least a portion of the polymer-free solution is recycled back to the reactor; C) maintaining the level of the at least one compound of Structure 2 in the at least one reactor, from 100 ppm to 10,000 ppm, as described herein.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: July 2, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Sean W. Ewart, Susan G. Brown, Daniela Ferrari, Edward O. Madenjian, Gregory J. Brennan
  • Patent number: 9862781
    Abstract: Solid adducts comprising MgCl2 and an alcohol ROH in which R is a C1-C20 hydrocarbon group, in which the amount of alcohol ranges from higher than 42% to 60% by weight and the porosity determined with Hg method due to pores up to 1 ?m and expressed in cm3/g, is such that the value of its ratio with the amount of alcohol in percentage falls above the straight line defined by the equation y=?0.0158x+1.03 in which y is the porosity of the adduct and x is the alcohol percentage by weight.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: January 9, 2018
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Daniele Evangelisti, Benedetta Gaddi, Gianni Collina
  • Patent number: 9120089
    Abstract: An inorganic/organic composite support includes an inert inorganic material, a complex compound composed of a polylol and a magnesium halide, and an organic polymer containing a polar functional group. Said complex compound loaded with the organic polymer is deposited on the inert inorganic material. When the inorganic/organic composite support used as a polyolefin catalyst carrier is applied to ethene or propylene polymerization, the fusion-flow ratio of the obtained polymerisate is remarkably increased and its processing performance is improved. When the catalyst is applied to ethene polymerization, the fusion-flow ratio of the polymerisate can be adjusted by changing the content of hydrogen. When the catalyst is applied to ethene or propylene polymerization, the catalyst activity is high.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: September 1, 2015
    Assignees: China Petroleum & Chemical Corporation, Zhejieng University
    Inventors: Yongrong Yang, Wenqing Wu, Jingdai Wang, Lijun Du, Wei Li, Lina Fan, Binbo Jiang, Zhengliang Huang
  • 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
  • Publication number: 20150065669
    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: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Errun Ding, Paul DesLauriers, Yongwoo Inn, Lili Cui, Qing Yang, Ashish Sukhadia, Guylaine St. Jean, Richard M. Buck
  • Patent number: 8962774
    Abstract: Regular shaped magnesium particles containing attrition resistant precursors and procatalysts thereof and processes for their synthesis and their use in the manufacture of polyolefins are described. A process for the synthesis of precursor particles which give highly active and improved surface area procatalysts for producing high bulk density polyolefin resins containing low fines and capable of incorporating high rubber content are described. A process for the synthesis of an attrition resistant precursors to prepare an attrition resistant Zeigler Natta procatalysts synthesized by using the precursors and to the polyolefin resin synthesized using the procatalysts is also described.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: February 24, 2015
    Assignee: Reliance Industries Limited
    Inventors: Virendrakumar Gupta, Saurabh Singh, Jomichan Joseph, Kamlesh J. Singala, Bhavesh K. Desai
  • 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: 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: 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: 8946368
    Abstract: The present invention relates to a multi-component catalytic system that can be used for the cis-1,4 stereospecific polymerization of conjugated dienes. The system is based on: (i) a rare-earth complex of Formula (II) Ln(A)3(B)n, Ln being a rare-earth metal, A a ligand, B a Lewis base or a solvent molecule and n a number from 0 to 3; (ii) an alkylating agent; (iii) a compound based on an aromatic ring and having at least two heteroatoms chosen from the elements O, N, S, P, and corresponding to the Formula (III): in which the R groups each denote hydrogen, an alkyl radical optionally comprising one or more heteroatoms (N, O, P, S, Si) or one or more halogen atoms, a halogen atom, a group based on one or more heteroatoms (N, O, P, S, Si); x and y are integers from 0 to 6; D is a group having a chemical function, one of the atoms of which has a non-bonding pair; L being an atom from column 1 of the Periodic Table.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: February 3, 2015
    Assignees: Compagnie Generale des Etablissements, Michelin Recherche et Technique S.A.
    Inventors: Christophe Boisson, Olivier Rolland, Julien Thuilliez
  • 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: 20140309385
    Abstract: Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can be used as catalysts to polymerise olefins, such as ethylene. Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can have a single-site nature, allowing the catalysts to be used to prepare ultra high molecular weight polyethylene having a narrow molecular weight distribution.
    Type: Application
    Filed: August 2, 2012
    Publication date: October 16, 2014
    Inventor: Jeroen Wassenaar
  • Publication number: 20140249283
    Abstract: The invention relates to a catalyst system for the polymerization of olefms comprising a metal complex of formula and an activating cocatalyst, wherein M is titanium, Cy is a cyclopentadienyl-type ligand, D is a diene, L is a guanidinate-containing ligand of the formula wherein each A is independently selected from nitrogen or phosphorous and R, R 1,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, and the activating cocatalyst is a boron compound represented by the general formula BR4R5R6, wherein B is a boron atom in the trivalent valence state and R4, R5 and R6 are individually selected from the group consisting of halogen atom, hydrocarbyl, halogenated hydrocarbyl, substituted silyl, alkoxy or di-substituted amino residue.
    Type: Application
    Filed: March 29, 2012
    Publication date: September 4, 2014
    Applicant: LANXESS ELASTOMERS B.V.
    Inventors: Van Gerardus Henricus Josephus Doremaele, Martin Alexander Zuideveld, Victor Fidel Quiroga Norambuena, Philip Mountford, Richard Scott
  • 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
  • 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: 8778827
    Abstract: The present invention relates to a catalyst composition comprising: (a) a binuclear chromium(II) complex; (b) a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—N(R5)—H or (B) R1R2P—N(R3)—P(R4)—N(R5)—PR6R7, wherein R1, R2, R3, R4, R5, R6 and R7 are independently selected from halogen, amino, trimethylsilyl, C1-C10-alkyl, aryl and substituted aryl, wherein the PNPN- or PNPNP-unit is optionally part of a ring system; and (c) an activator or co-catalyst, as well as to a process for oligomerization of ethylene.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: July 15, 2014
    Assignees: Saudi Basic Industries Corporation, Linde AG
    Inventors: Vugar Aliyev, Mohammed Al-Hazmi, Fuad Mosa, Peter M. Fritz, Heinz Bölt, Anina Wöhl, Wolfgang Müller, Florian Winkler, Anton Wellenhofer, Uwe Rosenthal, Bernd H. Müller, Marko Hapke, Normen Peulecke
  • Patent number: 8778826
    Abstract: Disclosed herein are processes for preparing procatalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present procatalyst compositions improve catalyst selectivity and also increase the bulk density of the formant polymer.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: July 15, 2014
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Kelly Gonzalez, Clark C. Williams, Linfeng Chen
  • Patent number: 8697827
    Abstract: Disclosed herein are procatalyst compositions, catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present procatalyst compositions contain a halo-malonate and a 2-fluoro-malonate in particular. The present catalyst compositions improve catalyst selectivity, improve catalyst activity, and also improve hydrogen response during polymerization. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 50 g/10 min.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: April 15, 2014
    Assignee: W. R. Grace & Co.-Conn
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao
  • Publication number: 20140094576
    Abstract: A pre-polymerized catalyst component for the polymerization of olefins CH2?CHR, wherein R is hydrogen or a C1-C12 hydrocarbon group, characterized by comprising a non-stereospecific solid catalyst component, comprising Ti, Mg and a halogen, said pre-polymerized catalyst component containing an amount of a (co)polymer of a monomer having formula CH2?CHA, where A is a C6 aliphatic or aromatic ring, optionally substituted, up to 5 g per g of said solid catalyst component. Said prepolymerized catalyst shows an excellent balance in terms of activity, morphological stability, reduced tendency to agglomeration and hydrogen response.
    Type: Application
    Filed: June 1, 2012
    Publication date: April 3, 2014
    Applicant: Basell Poliolefine Italia S.r.l.
    Inventors: Dario Liguori, Tiziano Dall'Occo, Gianni Vitale, Joachim T.M. Pater, Giampiero Morini
  • Publication number: 20140073750
    Abstract: A high activity polyolefin catalyst system comprising titanium containing pro-catalyst component, a co-catalyst component and an external electron donor compound is provided wherein the high activity polyolefin catalyst system is having controlled morphology and less fines. At least one embodiment of the present invention is more directed to provide a method for the preparation of titanium containing pro-catalyst component from solid spherical shaped magnesium containing pro-catalyst precursor wherein the spherical morphology of the pro-catalyst precursor is maintained through out the reaction in order to achieve titanium-containing pro-catalyst having controlled morphology. The polymerization of lower olefins in the presence of high activity polyolefin catalyst having controlled morphology provides polyolefins with minimal polymer fines.
    Type: Application
    Filed: November 14, 2013
    Publication date: March 13, 2014
    Applicant: RELIANCE INDUSTRIES LIMITED
    Inventors: Saurabh SINGH, Virendrakumar GUPTA, Kamlesh J. SINGALA, Vallabhbhai S. PATEL
  • Patent number: 8664343
    Abstract: A polymerization catalyst composition for preparing cis 1,4-polydienes is provided. The catalyst composition comprises (a) a metal-containing compound, said metal being a transition metal or a lanthanide metal; (b) a carbene, (c) an alkylating agent, and optionally (d) a halogen-containing compound with the proviso that the halogen-containing compound must be present when none of the metal-containing compound and the alkylating agent contain a labile halogen atom. Also provided is a process for producing a polydiene comprising reacting a conjugated diene in the presence of the polymerization catalyst composition.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: March 4, 2014
    Assignee: Bridgestone Corporation
    Inventors: Zengquan Qin, Jason T. Poulton
  • Patent number: 8653316
    Abstract: The present invention relates to a process for the preparation of linear low molecular weight alpha-olefins having 4 to 24 carbon atoms, comprising oligomerizing ethylene in an inert solvent in the presence of a catalyst system comprising: (i) zirconium carboxylate of the formula (R1COO)mZrCl4-m, wherein R1 is saturated or unsaturated aliphatic C1-C10 hydrocarbon or aromatic C6-C14 hydrocarbon and m fulfills 1?m?4, (ii) at least one aluminum compound selected from organoaluminum compounds of the formula R2nAlX3-n, wherein R2 is C1-C20 alkyl, X is chlorine, bromine or iodine, and n fulfills 1?n?2, and/or aluminoxanes, and (iii) at least two different additives selected from the group consisting of hydrogen, esters, ketones, ethers, amines, anhydrides, phosphines and sulfur compounds; as well as to a catalyst used therein.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: February 18, 2014
    Assignee: Saudi Basic Industries Corporation
    Inventors: Vugar O. Aliyev, Atieh Abu-Raqabah, Mohammad Zahoor
  • Patent number: 8637421
    Abstract: The present invention discloses a catalyst system based on a metallocene catalyst component and a new single site catalyst component for the production in a single reactor of improved polyolefins having a bimodal molecular weight distribution.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: January 28, 2014
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Abbas Razavi
  • Patent number: 8637721
    Abstract: The present invention relates to a catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—N(R5)—H or (B) R1R2P—N(R3)—P(R4)—N(R5)—PR6R7, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNPNP-unit is member of a ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution and a co-catalyst or activator.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: January 28, 2014
    Assignees: Saudi Basic Industries Corporation, Linde AG
    Inventors: Peter M. Fritz, Heinz Bölt, Anina Wöhl, Wolfgang Müller, Florian Winkler, Anton Wellenhofer, Uwe Rosenthal, Bernd H. Müller, Marko Hapke, Normen Peulecke, Mohammed Hassan Al-Hazmi, Vugar O. Aliyev, Fuad Mohammed Mosa
  • Publication number: 20130345376
    Abstract: This invention relates to an activator composition comprising (i) an organoaluminum compounds; (ii) a carbocation compound of the formula R1 (X)n; wherein R1 is a hydrocarbyl; n is from 1 to the number of possible substitutions of the hydrocarbyl group and each X is a labile leaving group; and (iii) an aluminoxane. The activator composition may also contain a carrier support. This invention also provides a catalyst composition comprising the activator composition described above and a transition metal component. This invention also provides methods of polymerizing monomer comprising carrying out such polymerization in the presence of one or more catalyst composition according to this invention.
    Type: Application
    Filed: March 8, 2012
    Publication date: December 26, 2013
    Applicant: Albemarle Corporation
    Inventors: Lubin Luo, Xiao Wu, Steven P. Diefenbach
  • Publication number: 20130338322
    Abstract: The present invention discloses an active metallocene catalyst system prepared with a hafnium-based metallocene catalyst system and an activating agent comprising an aluminoxane and a sterically hindered Lewis base.
    Type: Application
    Filed: May 24, 2013
    Publication date: December 19, 2013
    Applicant: TOTAL PETROCHEMICAL RESEARCH FELUY
    Inventors: Vincenzo Busico, Roberta Cipullo, Roberta Pellecchia, Abbas Razavi
  • Publication number: 20130310527
    Abstract: An ?-olefin polymer has (A) a tacticity index(meso triad fraction)[mm] of 10 to 50 mol %, (B) a kinematic viscosity at 100° C. of 200 to 10,000 mm2/s, (C) a content of a dimer and a trimer is less than 2 mass %, and (D) an average number of carbon atoms of 4 to 30.
    Type: Application
    Filed: September 1, 2011
    Publication date: November 21, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takenori Fujimura, Minako Tsuji, Takuji Okamoto, Yutaka Minami
  • Patent number: 8546290
    Abstract: A solid catalyst component for olefin polymerization includes a solid component obtained by causing a magnesium compound (a), a titanium halide compound (b), and an electron donor compound (c) to come in contact with each other, the titanium compound in an amount equivalent to a titanium content of 0.2 to 2.5 wt % in the solid catalyst component being washed away from the solid catalyst component by washing with heptane. A granular or spherical polymer that has high stereoregularity and a narrow particle size distribution can be obtained in high yield while suppressing production of a fine powder by polymerizing an olefin using a catalyst that includes the solid catalyst component.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: October 1, 2013
    Assignee: Toho Titanium Co., Ltd.
    Inventors: Hiroyuki Kono, Takashi Fujita
  • Publication number: 20130245212
    Abstract: Process for the preparation of a solid catalyst system comprising the steps of generating an emulsion by dispersing a liquid clathrate in a solution wherein (i) the solution constitutes the continuous phase of the emulsion and (ii) the liquid clathrate constitutes in form of droplets the dispersed phase of the emulsion, solidifying said dispersed phase to convert said droplets to solid particles and optionally recovering said particles to obtain said catalyst system, wherein the liquid clathrate comprises a lattice being the reaction product of aluminoxane, an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC 2007) or of an actinide or lanthanide, and a further compound being effective to form with the aluminoxane and the organometallic compound the lattice, and a guest being an hydrocarbon compound, and the solution comprises a silicon fluid and a hydrocarbon solvent.
    Type: Application
    Filed: April 28, 2011
    Publication date: September 19, 2013
    Applicant: BOREALIS AG
    Inventors: Kalle Kallio, Marja Mustonen, Pertti Elo, John Severn, Peter Denifl
  • Publication number: 20130225772
    Abstract: A supported catalyst system comprising a coprecipitated silica-and titania-containing support, comprising alumoxane as acatalyst activating agent, and a metallocene, wherein the supported catalyst system has a Ti content of at least 0.1 wt %.
    Type: Application
    Filed: August 16, 2011
    Publication date: August 29, 2013
    Applicant: TOTAL RESEARCH & TECHNOLOGY FELUY
    Inventors: Christopher Willocq, Aurélien Vantomme, Martine Slawinski
  • Publication number: 20130217842
    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: Application
    Filed: March 25, 2013
    Publication date: August 22, 2013
    Applicant: Chevron Phillips Chemical Company LP
    Inventor: Chevron Phillips Chemical Company LP
  • Publication number: 20130211022
    Abstract: Regular shaped magnesium particles containing attrition resistant precursors and procatalysts thereof and processes for their synthesis and their use in the manufacture of polyolefins are described. A process for the synthesis of precursor particles which give highly active and improved surface area procatalysts for producing high bulk density polyolefin resins containing low fines and capable of incorporating high rubber content are described. A process for the synthesis of an attrition resistant precursors to prepare an attrition resistant Zeigler Natta procatalysts synthesized by using the precursors and to the polyolefin resin synthesized using the procatalysts is also described.
    Type: Application
    Filed: July 11, 2011
    Publication date: August 15, 2013
    Applicant: RELIANCE INDUSTRIES LIMITED
    Inventors: Virendrakumar Gupta, Saurabh Singh, Jomichan Joseph, Kamlesh J. Singala, Bhavesh K. Desai
  • Patent number: 8497328
    Abstract: A solid catalyst component comprising Ti, Mg, halogen and a couple of monofunctional electron donor compounds MD1 and MD2 selected from esters and ethers, said donors being present in amounts such that the molar ratio MD1/MD2 ranges from 20 to 800. The so obtained catalyst component when converted into a catalyst is able to produce ethylene polymers with good morphological properties even under drastic polymerization conditions.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: July 30, 2013
    Assignee: Basell Poliolefine Italia, s.r.l.
    Inventors: Diego Brita, Gianni Collina
  • Patent number: 8476395
    Abstract: The present invention relates to a polypropylene composition comprising a propylene homopolymer or a propylene random copolymer having at least one comonomer selected from alpha-olefins with 2 or 4-8 carbon atoms and a comonomer content of not more than 8.0 wt %, wherein the propylene homo- or copolymer is polymerized in the presence of a Ziegler-Natta catalyst, and the polypropylene composition has a MWD of 2.0 to 6.0 and an MFR (2.16 kg/230° C.) of 4.0 g/10 min to 20.0 g/10 min, characterized in that the polypropylene composition has not been subjected to a vis-breaking step, the use of the inventive polypropylene composition for the production of a film and/or injection molded articles, a process for preparing a film wherein the inventive polypropylene composition is formed into a film, and wherein the polypropylene composition has not been subjected to a vis-breaking step and a film comprising the inventive polypropylene composition.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: July 2, 2013
    Assignee: Borealis AG
    Inventors: Christelle Grein, Tonja Schedenig
  • Patent number: 8455386
    Abstract: The present invention discloses a catalyst system based on a metallocene catalyst component and a new single site catalyst component for the production in a single reactor of improved polyolefins having a bimodal molecular weight distribution.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: June 4, 2013
    Assignee: Total Research & Technology Feluy
    Inventor: Abbas Razavi
  • Patent number: 8426538
    Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: April 23, 2013
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy L. Muninger, Gary G. Jerdee, Ashish M. Sukhadia, Qing R. Yang, Matthew G. Thorn
  • Patent number: 8426539
    Abstract: The present invention discloses an active supported catalyst system comprising: a) one or more non-metallocene catalyst component; b) an alkylating agent; c) an activating functionalised and fluorinated support. It also discloses a method for preparing said active support and its use in the polymerisation of polar and non polar monomers.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: April 23, 2013
    Assignees: Total Petrochemicals Research Feluy, Centre National de la Research Scientifique (CNRS)
    Inventors: Floran Prades, Roger Spitz, Christophe Boisson, Sabine Sirol, Abbas Razavi
  • Patent number: 8383540
    Abstract: Disclosed herein are procatalyst compositions, catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present procatalyst compositions contain a halo-malonate and a 2-fluoro-malonate in particular. The present catalyst compositions improve catalyst selectivity, improve catalyst activity, and also improve hydrogen response during polymerization. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 50 g/10 min.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: February 26, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao
  • Publication number: 20130035458
    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: Application
    Filed: August 4, 2011
    Publication date: February 7, 2013
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY, LP
    Inventors: Joel L. Martin, Qing Yang, Max P. McDaniel, Jim B. Askew
  • Publication number: 20130023634
    Abstract: A catalyst system obtainable with a process comprising the following steps: i) contacting a group 4 metal compound of formula (I) MX4??(I) wherein M is a metal of group 4 of the periodic table of the element, and X is a halogen atom or an organic radical; with a compound of formula (II) ii) adding to the reaction mixture of step i) one or more boron compounds having Lewis acidity wherein the molar ratio between the boron compound and the compound of formula (I) ranges from 0.9 to 100; iii) adding the reaction mixture obtained in step ii) to a silica support. with the proviso that the catalyst system is not treated with alumoxanes.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 24, 2013
    Inventors: Sandor NAGY, Llya E. Nifantev, Karen L. Neal-Hawkins, Shahram Mihan
  • Publication number: 20130012375
    Abstract: Disclosed herein is a process for preparation of an ultra high molecular weight polyethylene catalyst, comprising: (1) under inert atmosphere, dispersing a magnesium halide in an inert solvent; (2) adding an alcohol to react with the magnesium halide, to form a solution or dispersion of a magnesium halide-alcohol adduct; (3) adding an alkyl aluminum halide to react with the magnesium halide-alcohol adduct, to form an intermediate product; (4) optionally, subjecting the intermediate product to an ultrasonic wave treatment; (5) adding a titanium compound to perform Ti-supporting reaction; (6) optionally, subjecting the reaction mixture from step (5) to an ultrasonic wave treatment; and (7) recovering solid particles, to obtain the ultra high molecular weight polyethylene catalyst, wherein at least one of steps (4) and (6) is present.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Inventors: Liuzhong Li, Jianyong Zhou, Xiaoqing Li, Xiaolong Bi, Wenyi Li, Yongling Yu, Jie Yan, Lifang Qi, Gongtao Li, Dapeng Fan, Xiao Xu, Xiaojing Pei
  • Patent number: 8309749
    Abstract: Processes for preparing aluminoxane comprising: bringing into contact under reaction conditions in an inert atmosphere a liquid containing reaction mixture comprising: (i) a water in oil emulsion comprising water and at least one emulsifier in a first hydrocarbon solvent; and (ii) an organoaluminum compound capable of forming aluminoxane in a second hydrocarbon solvent; provided that the aluminoxane produced by the reaction is present in solution under the reaction conditions. In a preferred embodiment a support carrier for the aluminoxane: (i) is present during the contact step or (ii) is introduced following contact. A polymerization catalyst can be prepared wherein the support carrier is SiO2 and a Group 3 to Group 10 metal containing single site complex is mixed with the aluminoxane. Catalysts suitable for polymerizing an olefin such as ethylene or copolymerizing an olefin with at least one C3 to C20 alpha-olefin can be produced.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: November 13, 2012
    Assignee: W R Grace & Co-Conn
    Inventors: Xinggao Fang, Timothy A. Boyer, John Henry Hain, Jr.
  • Patent number: 8288304
    Abstract: Disclosed are procatalyst compositions having an internal electron donor which includes an adamantane dicarboxylate and optionally an additional electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions to produce propylene-based olefins with broad molecular weight distribution.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: October 16, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao, Kuanqiang Gao
  • Patent number: 8268945
    Abstract: A catalyst component for ethylene polymerization, comprising an organic silicon compound of the formula (I), below wherein R1 is chosen from C3-C20 aliphatic hydrocarbyl groups, and is substituted with at least one substituent chosen from halogens, C1-C6 acyloxy groups, epoxy, amino, C1-C6 alkylamino groups, di(C1-C6 alkyl)amino groups, C1-C6 alkoxy groups, and oxo group; R2, R3 and R4, which may be the same or different, are each chosen from C1-C10 aliphatic hydrocarbyl, C3-C10 alicyclic hydrocarbyl, C6-C10 aryl, C7-C10 aralkyl, and C7-C10 alkaryl groups. A process for preparing the catalyst component and an active catalyst comprising the catalyst component and useful in polymerization, such as ethylene polymerization.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 18, 2012
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Taoyi Zhang, Junling Zhou, Hongtao Wang, Zifang Guo, Qingqiang Gou, Hongxu Yang, Ruixia Li, Shiyuan Xu
  • Patent number: 8258361
    Abstract: The invention provides transition metal complex compounds, high-activity olefin oligomerization catalysts containing the compounds, and olefin oligomerization processes using the catalysts. A transition metal complex compound [A] according to the invention is represented by Formula (I) or Formula (I?) below. An olefin oligomerization catalyst includes the transition metal complex compound [A]. In an olefin oligomerization process of the invention, an olefin is oligomerized in the presence of the catalyst.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: September 4, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yasuhiko Suzuki, Shinsuke Kinoshita, Atsushi Shibahara, Naritoshi Yoshimura, Isao Hara, Tetsuya Hamada, Kazumori Kawamura, Kou Tsurugi, Yasunori Saito, Seiichi Ishii, Yasushi Nakayama, Naoto Matsukawa, Susumu Murata
  • Patent number: 8227370
    Abstract: A catalyst system containing (a) a solid catalyst component containing a titanium halide, a magnesium halide, a first internal electron donor compound, and a second internal electron donor compound, (b) an organoaluminum compound, and (c) an external electron donor compound is disclosed. The first internal electron donor compound contains at least one ether group and at least one ketone group. The second internal electron donor compound is a 1,8-naphthyl diester compound. Methods of polymerizing or copolymerizing alpha-olefins using the catalyst system also are disclosed.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: July 24, 2012
    Assignee: BASF Corporation
    Inventor: Main Chang
  • Patent number: 8227563
    Abstract: A process for the preparation of 1-butene homopolymers or 1-butene/alpha olefin copolymers wherein the alpha olefins are selected from ethylene, propylene or alpha olefins of formula CH2?CHZ wherein Z is a C3-C20 alkyl radical, comprising contacting 1-butene or 1-butene and one or more alpha olefins under polymerization conditions in the presence of a catalyst system comprising: (a) a solid component comprising a Ti compound and an internal electron-donor compound supported on MgCl2 (b) an alkylaluminum cocatalyst; and (c) a compound of formula (I) as external donor Wherein: R1, R2, R3 and R4, equal to or different from each other, are hydrogen atoms or C1-C20 hydrocarbon radicals optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; or two R1, R2, R3 and R4 can be joined to form a C5-C20, saturated or unsaturated ring.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 24, 2012
    Assignee: Basell Poliolefine Italia s.r.l.
    Inventors: Gianni Vitale, Fabrizio Piemontesi, Ines Mingozzi, Isabella Maria Vittoria Camurati, Giampaolo Pellegatti
  • Patent number: 8222175
    Abstract: This invention relates to a process for the preparation of an olefin polymerization catalyst, to the use of the catalyst in olefin polymerization and to the catalyst and polymers obtained. In particular, the invention relates to the preparation of a catalyst comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC) by a semi-continuous or continuous process.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 17, 2012
    Assignee: Borealis Technology Oy
    Inventors: Michael Bartke, Peter Denifl
  • Patent number: 8216957
    Abstract: The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerization catalyst component in particulate form having improved polymerization properties due to the use of H2 during catalyst component preparation and the use of such catalyst components in a process for polymerizing olefins.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: July 10, 2012
    Assignee: Borealis AG
    Inventors: Timo Leinonen, Peter Denifl, Anssi Haikarainen
  • Publication number: 20120129683
    Abstract: The invention provides a polymerization catalyst produced by bringing components (A) to (D) into contact with one another in a hydrocarbon solvent at 30 to 60° C., wherein the component (A) is a transition metal compound, the component (B) is a solid boron compound capable of forming an ion pair with component (A), the component (C) is an organoaluminum compound, and the component (D) is one or more unsaturated hydrocarbon compounds selected from among an ?-olefin, an internal olefin, and a polyene; and the amounts of component (B) and component (C) are 1.2 to 4.0 mol and 5.0 to 50.0 mol, respectively, on the basis of 1 mol of component (A), which catalyst exhibits high activity and can be readily supplied to a polymerization reaction system. The invention also provides a method of storing the polymerization catalyst at 0 to 35° C.
    Type: Application
    Filed: June 10, 2010
    Publication date: May 24, 2012
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Masami Kanamaru, Takenori Fujimura, Minoru Yabukami