Contains A Magnesium Compound As The Group Iia Metal Compound Patents (Class 526/124.2)
  • Patent number: 10421886
    Abstract: A hot-melt adjuvant-free formulation includes a butene-1-co-hexene-1 copolymer formed from butene-1 and hexene-1 monomers with a supported Ziegler-Natta catalyst, a styrenic block copolymer with less than 15 percent styrene, a high melt flow index metallocene, a high melt flow rate polypropylene with a melt flow above 18000 cps, and a low molecular weight polyethylene wax, wherein the molecular weight is less than 1000 centipoise at a temperature of 350 degrees Fahrenheit.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: September 24, 2019
    Inventors: Andres Sustic, Nick Fowler, John Passmore
  • Patent number: 10239969
    Abstract: A magnesium halide adduct represented by the formula (I): MgX2.mROH.nE.pH2O, in which X is chlorine, bromine, a C1-C12 alkoxy, a C3-C10 cycloalkoxy or a C6-C10 aryloxy, with the proviso that at least one X is chlorine or bromine; R is a C1-C12 alkyl, a C3-C10 cycloalkyl or a C6-C10 aryl; E is an o-alkoxybenzoate compound represented by the formula (II): in which R1 and R2 groups are independently a C1-C12 linear or branched alkyl, a C3-C10 cycloalkyl, a C6-C10 aryl, a C7-C10 alkaryl or an C7-C10 aralkyl, the R1 and R2 groups are identical to or different from the R group; m is in a range of from 1.0 to 5.0; n is in a range of from 0.001 to 0.5; and p is in a range of from 0 to 0.8, is disclosed. A catalyst component useful in olefin polymerization, which comprises a reaction product of (1) the magnesium halide adduct, (2) a titanium compound, and optionally (3) an electron donor compound, is also disclosed.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: March 26, 2019
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Xianzhi Xia, Yuexiang Liu, Jigui Zhang, Xinsheng Wang, Ping Gao, Suzhen Qiao, Maoping Yin, Weili Li, Tianyi Zhang, Renqi Peng, Ying Chen, Zhihui Zhang
  • Patent number: 9840567
    Abstract: A process for the preparation of a polyolefin is disclosed. The process includes introducing one or more olefin reactants, diluents and polymerization catalyst into a first loop reactor, and while circulating the olefin reactants, diluents and polymerization catalyst in the first loop reactor. The method includes polymerizing the one or more olefin reactants to produce a polyolefin slurry comprising liquid diluent and solid olefin polymer particles.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: December 12, 2017
    Assignee: Total Research & Technology Feluy
    Inventors: Louis Fouarge, Annelies Horre, Geert Nauwelaerts, Marc Richet, Pascal Wilderiane
  • Patent number: 9593183
    Abstract: This disclosure relates to a method for preparing a catalyst for synthesis of a polyolefin and a process for synthesis of a polyolefin using the same. More particularly, this disclosure relates to a method for preparing a catalyst for synthesis of a polyolefin including: reacting a magnesium compound with an alkane diol having a carbon number of 3 to 15 unsubstituted or substituted with an alkyl group having a carbon number of 1 to 5, and a benzoyl halide compound to prepare a magnesium compound solution; reacting the magnesium compound solution with a first transition metal compound to prepare a support; and reacting the support with a second transition metal compound to produce a solid catalyst, and a process for synthesis of a polyolefin using the same.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: March 14, 2017
    Assignee: LOTTE CHEMICAL CORPORATION
    Inventors: Byung Hun Chae, Seong Soo Lim, Cheon Ik Joo, Jung Yeop Lee, Sook Young Jin
  • Patent number: 9580370
    Abstract: A process for recovery of ethylene from a polymerization product stream of a polyethylene production system, comprising separating a light gas stream from the polymerization product stream, wherein the light gas stream comprises ethane and unreacted ethylene, contacting the light gas stream with an absorption solvent system, wherein the contacting the light gas stream with the absorption solvent system occurs at a temperature in a range of from about 40° F. to about 110° F., wherein at least a portion of the unreacted ethylene from the light gas stream is absorbed by the absorption solvent system, and recovering unreacted ethylene from the absorption solvent system to yield recovered ethylene.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: February 28, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: John D. Hottovy, Ai-fu Chang
  • Patent number: 9068025
    Abstract: The present invention relates to a catalyst component for olefin polymerization, which comprises the reaction product of at least one organo-magnesium compound, at least one titanium-containing compound, at least one hydroxyl group-containing compound, at least one chlorine-containing organo-aluminum, boron, phosphorus or silicon compound, and at least one polybutadiene block copolymer. The catalyst component of the present invention has well-shaped particles, and a narrow particle size distribution; a polymerization reaction of olefins with the catalyst component produces well-shaped polymer particles with a high bulk density (BD) and an excellent comprehensive catalytic performance. The present invention also relates to a preparation method for said catalyst component and the application thereof, particularly in the homopolymerization and copolymerization of olefins such as ethylene, propylene, butene, hexene and octene.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: June 30, 2015
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Shibo Wang, Dongbing Liu, Junling Zhou, Xinping Lü, Lei Zhang, Bingquan Mao, Baoquan Xing, Xin Zhou, Changli Zhang
  • 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: 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: 8940654
    Abstract: A catalyst component for the polymerization of olefins obtained by: (a) reacting in a inert hydrocarbon suspension medium a Mg(OR1)(OR2) compound, in which R1 and R2 are identical or different and are each an alkyl radical having 1 to 10 carbon atoms, with a tetravalent transition metal compound having at least a Metal-halogen bond, used in amounts such that the molar ratio metal/Mg is from 0.05 to 10, thereby obtaining a solid reaction product dispersed in a hydrocarbon slurry, (b) washing the solid reaction product dispersed in a hydrocarbon slurry with a liquid hydrocarbon, (c) contacting the washed solid reaction product obtained in (b) with a tetravalent titanium compound and (d) contacting the product obtained in (c) with an organometallic compound of a metal of group 1, 2 or 13 of the Periodic Table.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: January 27, 2015
    Assignee: Basell Polyolefine GmbH
    Inventors: Friedhelm Gundert, Martin Schneider
  • Patent number: 8901260
    Abstract: An interpolymer of ethylene and at least one alpha-olefin is claimed, wherein the ethylene interpolymer is characterized as having an average Mv and a valley temperature between the interpolymer and high crystalline fraction, Thc, such that the average Mv for a fraction above Thc from ATREF divided by average Mv of the whole polymer from ATREF (Mhc/Mp) is less then about 1.95 and wherein the interpolymer has a CDBI of less than 60%. The interpolymer of ethylene and at least one alpha-olefin can also be characterized as having a high density (HD) fraction and an overall density such that % HD fraction<?2733.3+2988.7x+144111.5 (x?0.92325)2 where x is the density in grams/cubic centimeter. Fabricated articles comprising the novel interpolymers are also disclosed.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: December 2, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Ayush A. Bafna, Mehmet Demirors, Sylvie Desjardins, Douglas S. Ginger, Colleen M. Tice, Terry A. Pearce
  • Patent number: 8901261
    Abstract: The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerisation catalyst component in particulate form free of conventional phthalate electron donors and the use thereof in a process for polymerising olefins.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: December 2, 2014
    Assignee: Borealis AG
    Inventors: Anssi Haikarainen, Peter Denifl, Timo Leinonen
  • Publication number: 20140178617
    Abstract: The invention relates to a process for the preparation of polypropylene having: a molecular weight of 450,000-950,000, a molecular weight distribution of 3-6, and xylene soluble content of 2-6 wt %, by converting propylene into the polypropylene without pre-polymerization in the presence of a polymerization catalyst under a condition where the volume ratio of H2 to propylene is at most 0.0020, wherein the catalyst comprises a catalyst component and a co-catalyst, wherein the catalyst component is obtained by a process wherein a compound with formula Mg(OAlk)xCly wherein x is larger than 0 and smaller than 2, y equals 2-x and each Alk, independently, represents an alkyl group, is contacted with a titanium tetraalkoxide and/or an alcohol in the presence of an inert dispersant to give an intermediate reaction product and wherein the intermediate reaction product is contacted with titanium tetrachloride in the presence of an internal donor.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 26, 2014
    Applicant: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Abderrahman Meddad, Hesham A. Al-Shobilly, Mansour I. Taftaf
  • Publication number: 20140148564
    Abstract: Catalyst components for the polymerization of olefins CH2=CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising Mg, Ti, Cl and a diol or a derivative thereof. A process for the use of catalyst components for the polymerization of olefins CH2=CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising Mg, Ti, Cl and a diol or a derivative thereof.
    Type: Application
    Filed: March 14, 2012
    Publication date: May 29, 2014
    Applicant: Basell Poliolefine Italia S.r.l.
    Inventors: Dario Liguori, Gianni Vitale, Joachim T.M. Pater, Giampiero Morini, Simona Guidotti, Tiziano Dall'occo
  • Publication number: 20140121339
    Abstract: Disclosed herein are a polypropylene with narrow molecular weight distribution and a process for preparing the same in a reactor using a Ziegler-Natta catalyst.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 1, 2014
    Applicants: BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHNA PETROLEUM & CHEMICAL CORP, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Liangshi WANG, Luqiang YU, Shijun ZHANG, Jinliang QIAO, Meifang GUO, Zhichao YANG, Jianjun YIN, Honghong HUANG, Liping HOU, Jianfang SHENG
  • 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: 20140046009
    Abstract: Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions contain an internal electron donor of an alkoxyalkyl 2-propenoate and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity and polymer stiffness. Polypropylene homopolymer produced from the present catalyst composition has a xylene solubles content less than 4 wt % and a TMF greater than 172.0° C.
    Type: Application
    Filed: December 2, 2011
    Publication date: February 13, 2014
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao
  • Publication number: 20140046010
    Abstract: A porous solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being selected from 1,3-diethers and the other being selected from succinates, characterized by the fact that the molar ratio ID/Ti is from 0.30 to 0.90, where ID is the total molar amount of succinate and 1,3-diether, the molar ratio of the 1,3-diether donor to the succinate donor is higher than, or equal to, 0.60.
    Type: Application
    Filed: March 29, 2012
    Publication date: February 13, 2014
    Applicant: Basell Poliolefine Italia S.r.I.
    Inventors: Simona Guidotti, Giampiero Morini, Simona Esposito, Alessandro Mignogna, Joachim T.M. Pater, Fabrizio Piemontesi, Diego Brita
  • Publication number: 20140046011
    Abstract: Process for the preparation of solid particles of a magnesium-chloride alcohol adduct comprising (a) forming an emulsion between a MgCl2 alcohol adduct in molten form and a liquid phase which is immiscible with the said adduct in the presence of a polyalkyl-methacrylate used as a solution having viscosity ranging from 100 to 5000 mm2/s and (b) rapidly cooling the emulsion to solidify the disperse phase and collecting the solid adduct particles.
    Type: Application
    Filed: April 13, 2012
    Publication date: February 13, 2014
    Applicant: Basell Poliolefine Italia S. r. I.
    Inventors: Benedetta Gaddi, Daniele Evangelisti, Gianni Collina
  • Publication number: 20130338321
    Abstract: Disclosed herein are processes for preparing procatalyst compositions which include multiple contact steps in the presence of a substituted phenylene aromatic diester and at least one other internal electron donor. The multi-contact procatalyst compositions produced from the present processes improve polymer properties and polymerization parameters. In particular, the present multi-contact procatalyst compositions improve polymer bulk density.
    Type: Application
    Filed: February 29, 2012
    Publication date: December 19, 2013
    Inventors: Joseph N. Coalter, III, Linfeng Chen, Clark C. Williams
  • Patent number: 8592536
    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 20, 2012
    Date of Patent: November 26, 2013
    Assignee: Borealis AG
    Inventors: Timo Leinonen, Peter Denifl, Anssi Haikarainen
  • Publication number: 20130296510
    Abstract: The present disclosure provides catalysts for olefin polymerization comprising titanium, silicon, magnesium, phosphorus, at least one internal electron donor compound, and at least one halogen, processes for preparing the catalysts for olefin polymerization, and processes for olefin polymerization using the catalysts for olefin polymerization.
    Type: Application
    Filed: May 3, 2012
    Publication date: November 7, 2013
    Inventors: Zhengyang Guo, Shilong Lei, Cuilian Liu, Ting Hong, Yu Wang, Ying Wang, Chunhong Ren, Meiyan Fu
  • Patent number: 8557935
    Abstract: Bimetallic catalysts, methods of producing bimetallic catalysts comprising a modified Ziegler-Natta catalyst and a metallocene, and methods of olefin polymerization using such catalysts are provided. The method of producing the bimetallic catalyst may include combining (a) a Ziegler-Natta catalyst comprising a Group 4, 5 or 6 metal halide and/or oxide, optionally including a magnesium compound, with (b) a modifier compound (“modifier”), wherein the modifier compound is a Group 13 alkyl compound, to form a modified Ziegler-Natta catalyst. The modified Ziegler-Natta catalyst is preferably non-activated, that is, it is unreactive towards olefin polymerization alone. The molar ratio of the Group 13 metal (of the modifier) to the Group 4, 5 or 6 metal halide and/or oxide may be less than 10:1. The bimetallic catalysts are useful in producing bimodal polymers, particularly bimodal polyethylene, having a Polydispersity (Mw/Mn) of from 12 to 50, which may be used in pipes and films.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: October 15, 2013
    Assignee: Univation Technologies, LLC
    Inventors: Sun-Chueh Kao, Michael D. Awe
  • Patent number: 8487053
    Abstract: Methods for removing polymer skins or build-up from reactor walls in polymerization reactor systems containing a loop slurry reactor are disclosed. Such methods can employ removing some or all of the comonomer from the reactor system in combination with increasing the polymerization temperature of the loop slurry reactor.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: July 16, 2013
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: George R. Rajaendran, Max P. McDaniel, Gregory G. Hendrickson, John D. Stewart, John D. Hottovy, Ted H. Cymbaluk, Susannah Lane, Richard A. Hernandez, Elliott W. Johnson, Qing Yang, William L. Valerioti, Eric Schwerdtfeger, Albert P. Masino
  • Publication number: 20130150540
    Abstract: The present invention relates to a catalyst component for olefin polymerization, which comprises the reaction product of at least one organo-magnesium compound, at least one titanium-containing compound, at least one hydroxyl group-containing compound, at least one chlorine-containing organo-aluminum, boron, phosphorus or silicon compound, and at least one polybutadiene block copolymer. The catalyst component of the present invention has well-shaped particles, and a narrow particle size distribution; a polymerization reaction of olefins with the catalyst component produces well-shaped polymer particles with a high bulk density (BD) and an excellent comprehensive catalytic performance. The present invention also relates to a preparation method for said catalyst component and the application thereof, particularly in the homopolymerization and copolymerization of olefins such as ethylene, propylene, butene, hexene and octene.
    Type: Application
    Filed: August 19, 2011
    Publication date: June 13, 2013
    Inventors: Shibo Wang, Dongbing Liu, Junling Zhou, Xinping Lü, Lei Zhang, Bingquan Mao, Baoquan Xing, Xin Zhou, Changli Zhang
  • Publication number: 20130116393
    Abstract: The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerisation catalyst component in particulate form free of conventional phthalate electron donors and the use thereof in a process for polymerising olefins.
    Type: Application
    Filed: July 11, 2011
    Publication date: May 9, 2013
    Applicant: BOREALIS AG
    Inventors: Anssi Haikarainen, Peter Denifl, Timo Leinonen
  • Publication number: 20130046040
    Abstract: A polyethylene powder has a molecular weight in the range of about 300,000 g/mol to about 2,000,000 g/mol as determined by ASTM-D 4020, an average particle size, D50, between about 300 and about 1500 ?m, and a bulk density between about 0.25 and about 0.5 g/ml. On sintering, the polyethylene powder produces a porous article having a porosity of at least 45% and a pressure drop less than 5 mbar. The porous article is useful in, for example, wastewater aeration and capillary and filtration applications.
    Type: Application
    Filed: May 3, 2011
    Publication date: February 21, 2013
    Applicant: TICONA LLC
    Inventors: Ramesh Srinivasan, Julia Hufen, Bernhard Forschler, Bjorn Rinker, Jens Ehlers, Louie Wang, Rajesh Bhor, Peter Burke, Meinhard Gusik, Yu Shen
  • Patent number: 8324126
    Abstract: The present invention relates a process for the preparation of catalytic support and the supported metallocene catalysts used in the production of ethylene homopolymers and ethylene copolymers with ?-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: December 4, 2012
    Assignee: Braskem S.A.
    Inventors: Marcia Silva Lacerda Miranda, Fernanda Oliveira Vieira da Cunha
  • Patent number: 8314180
    Abstract: The present invention concerns heterophasic propylene copolymers, comprising a propylene homopolymer (PPH) and an ethylene-propylene rubber (EPR), having a broad molecular weight distribution and a well-defined total ethylene content and a specific ratio of the intrinsic viscosities of the ethylene-propylene rubber (EPR) and the propylene homopolymer (PPH), ?EPR/?PPH. The invention further concerns the process to produce such heterophasic propylene copolymers. The heterophasic propylene copolymers of the present invention are particularly suited for corrugated sheet and cast film applications.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: November 20, 2012
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Isabelle Ydens, Alain Standaert, Olivier Lhost, Jérôme Gromada, Katty Den Dauw
  • Patent number: 8293857
    Abstract: Process for polymerization of ethylene using a catalyst system including (i) a solid catalyst of Ti, Mg and halogen, (ii) a first activator which is at least one trialkylaluminium compound of the formula AlR3, where each R is independently a C2 to C20 alkyl radical, and (iii) a second activator which is at least one alkylaluminium chloride of the formula AlR?2Cl, where each R? is independently a C2 to C20 alkyl radical. The second activator is introduced directly into the polymerization reactor, without precontact with the solid catalyst, continuously or semi-continuously, and at a maximum rate of introduction at any time corresponding to less than 10 ppm by weight of chlorine relative to the rate of polyethylene production.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: October 23, 2012
    Assignee: Ineos Europe Limited
    Inventors: Alain Berardi, Andre Frederich, Dominique Jan, Jean-Jacques Kuhlburger, Anthony Sgard, Alain Van Daele
  • Patent number: 8273449
    Abstract: The instant invention is a polyethylene film, and method of making the same. The polyethylene film according to instant invention includes at least one heterogeneously branched ethylene/?-olefin copolymer having a density in the range of about 0.910 to about 0.930 g/cm3, a molecular weight distribution in the range of about 2.8 to 3.8, a melt index (I2) in the range of about 0.3 to about 4 g/10 min, and an I10/I2 ratio in the range of 6.5 to about 7.8. The film has a normalized dart impact strength of equal or greater than (6666-7012*density) g/mil, a normalized tear strength of equal or greater than (440*e?(density?0.915)2/2*(0.00949)2) g/mil, and a haze in the range of 3 to 10 percent. The method of making the polyethylene film according to instant invention includes the following steps: (1) providing at least one heterogeneously branched ethylene/?-olefin copolymer having a density in the range of about 0.910 to about 0.930 g/cm3, a molecular weight distribution in the range of about 2.8 to 3.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: September 25, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Sylvie Desjardins, Marc A. Springs, Phillip D. Hustad, Nathan J. Wiker, Jesus Nieto, Wayde V. Konze
  • Publication number: 20120208968
    Abstract: A catalyst component for the polymerization of olefins obtainable by: (a) reacting a Mg(OR1)(OR2) compound, in which R1 and R2 are identical or different and are each an alkyl radical having 1 to 10 carbon atoms, with a tetravalent transition metal compound having at least a metal-halogen bond, the molar ratio metal/Mg ranging from 0.05 to 10, thereby obtaining a solid reaction product, and (b) contacting the solid reaction product obtained in step (a) with a silicon compound of formula RISi(ORII)3 where RI is a linear, branched, cyclic or aromatic C1-C20 hydrocarbon group and RII is a linear, branched, cyclic or aromatic C2-C20 hydrocarbon group, the molar ratio of the silicon compound on the transition metal in the solid reaction product of step (a) ranging from 0.1 to 3.
    Type: Application
    Filed: October 7, 2010
    Publication date: August 16, 2012
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: Friedhelm Gundert, Martin Schneider
  • 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
  • Publication number: 20120184694
    Abstract: A magnesium halide adduct represented by the formula (I): MgX2.mROH.nE.pH2O, in which X is chlorine, bromine, a C1-C12 alkoxy, a C3-C10 cycloalkoxy or a C6-C10 aryloxy, with the proviso that at least one X is chlorine or bromine; R is a C1-C12 alkyl, a C3-C10 cycloalkyl or a C6-C10 aryl; E is an o-alkoxybenzoate compound represented by the formula (II): in which R1 and R2 groups are independently a C1-C12 linear or branched alkyl, a C3-C10 cycloalkyl, a C6-C10 aryl, a C7-C10 alkaryl or an C7-C10 aralkyl, the R1 and R2 groups are identical to or different from the R group; m is in a range of from 1.0 to 5.0; n is in a range of from 0.001 to 0.5; and p is in a range of from 0 to 0.8, is disclosed. A catalyst component useful in olefin polymerization, which comprises a reaction product of (1) the magnesium halide adduct, (2) a titanium compound, and optionally (3) an electron donor compound, is also disclosed.
    Type: Application
    Filed: July 15, 2009
    Publication date: July 19, 2012
    Inventors: Xianzhi Xia, Yuexiang Liu, Jigui Zhang, Xinsheng Wang, Ping Gao, Suzhen Qiao, Maoping Yin, Weili Li, Tianyi Zhang, Renqi Peng, Ying Chen, Zhihui Zhang
  • 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
  • Patent number: 8202936
    Abstract: The present invention relates to a process of producing an ethylene polymer composition in multiple stages of which the first stage is a slurry polymerization stage, in the presence of a catalyst system comprising a) a solid catalyst precursor comprising a transition metal selected from titanium and vanadium; magnesium, a halide, optionally an electron donor, and a solid particulate material comprising an inorganic oxide, wherein the median particle diameter of the solid catalyst precursor based upon the total volume of solid catalyst precursor, D50, is from 1 to 13 micrometers; and b) an organoaluminium compound.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: June 19, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Patrick J. C. Schouterden, Ruddy Nicasy, Sarat Munjal, Burkhard E. Wagner, Robert J. Jorgensen
  • Publication number: 20120142873
    Abstract: A solid catalyst component comprising the product of a process comprising (a) reacting a magnesium alcoholate of formula Mg(OR1)(OR2) compound, in which R1 and R2 are identical or different and are each an alkyl radical having 1 to 10 carbon atoms, with titanium tetrachloride carried out in a hydrocarbon at a temperature of 50-100° C., (b) subjecting the reaction mixture obtained in (a) to a heat treatment at a temperature of 110° C. to 200° C. for a time ranging from 3 to 25 hours (c) isolating and washing with a hydrocarbon the solid obtained in (b), said solid catalyst component having a Cl/Ti molar ratio higher than 2.5.
    Type: Application
    Filed: August 2, 2010
    Publication date: June 7, 2012
    Applicant: Basell Polyolefine GmbH
    Inventors: Freidhelm Gundert, Martin Schneider, Joachim Berthold, Bernd Lothar Marczinke
  • Patent number: 8173569
    Abstract: A Ziegler-Natta procatalyst composition in the form of solid particles and comprising magnesium, halide and transition metal moieties, said particles having an average size (D50) of from 10 to 70 ?m, characterized in that at least 5 percent of the particles have internal void volume substantially or fully enclosed by a monolithic surface layer (shell), said layer being characterized by an average shell thickness/particle size ratio (Thickness Ratio) determined by SEM techniques for particles having particle size greater than 30 ?m of greater than 0.2.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: May 8, 2012
    Assignee: Union Carbide Chemicals & Plastics Technology LLC
    Inventors: Robert J. Jorgensen, Michael A. Kinnan, Michael D. Turner, Stephanie M. Whited, Laszlo L. Ban, Burkhard E. Wagner
  • Publication number: 20120095172
    Abstract: Ziegler-Natta catalyst composition capable of producing ethylene/alpha-olefins copolymers, particularly linear low density polyethylene; the composition having an improved stability of its behaviour during polymerization in respect to time. The Ziegler-Natta catalyst composition comprises: 1.
    Type: Application
    Filed: April 26, 2010
    Publication date: April 19, 2012
    Inventors: Thomas Garoff, Paivi Waldvogel, Kalle Kallio, Virginie Eriksson
  • Patent number: 8143184
    Abstract: The invention is directed to a process for producing an olefin polymerization catalyst wherein a solution of a soluble magnesium complex containing an element of is Group 13 or 14 of the Periodic Table (IUPAC) is contacted with a halogen containing transition metal compound of Group 3 to 10 of the Periodic Table (IUPAC) to obtain a solid catalyst complex comprising as essential components Mg, said element of is Group 13 or 14 of the Periodic Table (IUPAC) and said transition metal compound.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: March 27, 2012
    Assignee: Borealis Technology Oy
    Inventors: Thomas Garoff, Päivi Waldvogel
  • Patent number: 8138264
    Abstract: A bimodal polyethylene having a high density ranging from about 0.955 to about 0.959 g/cc, an improved environmental stress cracking resistance (ESCR) of from about 400 to about 2500 hours, and an improved 0.4% flexural modulus of from about 180,000 to about 260,000 psi (1,200 MPa to about 1,800 MPa) may be formed using a Ziegler-Natta polymerization catalyst using two reactors in series. The bimodal polyethylene may have a high load melt index (HLMI) of from about 2 and about 30 dg/min and may be optionally made with a small amount of alpha-olefinic comonomer in the second reactor. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: March 20, 2012
    Assignee: Fina Technology, Inc.
    Inventors: Tim J. Coffy, Gerhard Guenther, Steven D. Gray
  • Patent number: 8067328
    Abstract: A polymerization catalyst composition comprising (1) a transition metal compound of Formula (A), Z being 5-membered heterocyclic containing at least one carbon, at least one nitrogen and at least one of nitrogen, sulphur and oxygen, the others being nitrogen or carbon; M is a Group 3 to 11 metal or a lanthamide metal; E1 and E2 are divalent groups of aliphatic, alicyclic, aromatic or alkyl substituted aromatic hydrocarbon, or heterocyclic; D1 and D2 are donor atoms or groups; X is an anionic group, L is a neutral donor group; n=m=zero or 1; y and z are zero or integer such that X and L satisfy valency/oxidation state of M, (2) a catalyst-activating support which is a solid particulate substance, insoluble in hydrocarbons, comprising at least magnesium and aluminum atoms and hydrocarbyloxy groups containing 1 to 20 carbon atoms, the molar ration of Mg/Al being in the range 1.0 to 300 and the molar ratio of hydrocarbyloxy groups to aluminum atoms being in the range 0.5 to 2.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: November 29, 2011
    Assignee: Ineos Europe Limited
    Inventors: Vernon Charles Gibson, Atanas Kostadinov Tomov, Grant Berent Jacobsen
  • Patent number: 8058372
    Abstract: This invention relates to a transition metal catalyst compound represented by the formula: LMX2 or (LMX2)2 wherein each M is independently a Group 7 to 11 metal, preferably a Group 7, 8, 9, or 10 metal; each L is, independently, a tridentate or tetradentate neutrally charged ligand that is bonded to M by three or four nitrogen atoms, (where at least one of the nitrogen atoms is a central nitrogen atom and at least two of the nitrogen atoms are terminal nitrogen atoms), and at least two terminal nitrogen atoms are substituted with one C3-C50 hydrocarbyl and one hydrogen atom or two hydrocarbyls wherein at least one hydrocarbyl is a C3-C50 hydrocarbyl, and the central nitrogen atom is bonded to three different carbon atoms or two different carbon atoms and one hydrogen atom; X is independently a monoanionic ligand, or two X may join together to form a bidentate dianionic ligand.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: November 15, 2011
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: Gregory Adam Solan, Christopher James Davies
  • Publication number: 20110269925
    Abstract: The invention relates to a catalyst for the production of polyethylene comprising a solid reaction product obtained by reaction of: (a) a hydrocarbon solution comprising (1) an organic oxygen containing magnesium compound and (2) an organic oxygen containing titanium compound and (b) a compound comprising a transition metal from Group IV or V of Mendeleev's Periodic System of Chemical Elements and containing at least two halogen atoms. Preferably the catalyst is applied during the polymerisation of ethylene to obtain ultra high molecular weight polyethylene and to obtain bimodal polyethylene.
    Type: Application
    Filed: July 10, 2009
    Publication date: November 3, 2011
    Applicant: SAUDI BASIC INDUSTRIES CORPORATION
    Inventor: Nicolaas Hendrika Friederichs
  • Publication number: 20110269926
    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: Application
    Filed: December 17, 2009
    Publication date: November 3, 2011
    Applicant: TOHO TITANIUM CO., LTD.
    Inventors: Hiroyuki Kono, Takashi Fujita
  • Publication number: 20110263802
    Abstract: Methods of forming a catalyst, catalysts, polymerization processes and polymers formed therefrom are described herein. The method of forming a catalyst generally includes contacting an alkyl magnesium compound with an alcohol to form a magnesium alkoxide compound; contacting the magnesium alkoxide compound with a first titanium alkoxide and a first agent to form a reaction product “A”, wherein the titanium alkoxide and the first agent are nonblended individual components prior to contacting the magnesium alkoxide; and sequentially contacting the reaction product “A” with a second agent, followed by a third agent, and subsequently a first reducing agent to form a catalyst component.
    Type: Application
    Filed: April 22, 2010
    Publication date: October 27, 2011
    Applicant: Fina Technology, Inc.
    Inventors: Lei Zhang, William Gauthier
  • Patent number: 8044155
    Abstract: A catalyst system obtainable by the process comprising the steps of contacting an adduct of formula (I) MgT2.yAlQj(OR?)3-j??(I) wherein T is chlorine, bromine, or iodine; R? is a linear or branched C1-C10 alkyl radical; y ranges from 1.00 to 0.05; and j ranges from 0.01 to 3.00; with at least one metallocene compound having titanium as central metal and at least one ligand having a cyclopentadienyl skeleton.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: October 25, 2011
    Assignee: Stichting Dutch Polymer Institute
    Inventors: John Richard Severn, John Clement Chadwick
  • Patent number: 7989382
    Abstract: An olefin polymerization catalyst whose molar ratio of residual alkoxy groups to titanium is 0.60 or less, obtained by reacting (a1) an oxide of an element from Groups II to IV elements and which supports an alcohol-free halogen-containing magnesium compound, with (b1) an alcohol, at a hydroxyl group/magnesium molar ratio of 1.0 or more, then reacting that reaction mixture with (c1) a halogen-containing silicon compound, at a halogen/magnesium molar ratio of 0.20 or more, then reacting the resultant reaction mixture with (d1) an electron-donating compound, and (e) a halogen-containing titanium compound at a temperature of 120° C. to 150° C., washing the reaction mixture with an inert solvent, reacting the reaction mixture with (e) again at that temperature and washing the reaction mixture with an inert solvent, thereby providing a solid catalyst component for olefin polymerization.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: August 2, 2011
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Shojiro Tanase, Takanori Sadashima
  • Patent number: 7947788
    Abstract: The invention is directed to a process for the preparation of a catalyst component wherein a compound with formula Mg(OAlk)xCly wherein x is larger than 0 and smaller than 2, y equals 2?x and each Alk, independently represents an alkyl group, is contacted with a titanium tetraalkoxide and/or an alcohol in the presence of an inert dispersant to give an intermediate reaction product and wherein the intermediate reaction product is contacted with titanium tetrachloride in the presence of an internal donor. The invention also relates to a polymerization catalyst comprising the catalyst component and furthermore the invention relates to the polymerization of an olefin in the presence of the polymerization catalyst comprising the catalyst component.
    Type: Grant
    Filed: November 11, 2005
    Date of Patent: May 24, 2011
    Assignee: Saudi Basic Industries Corporation
    Inventors: Yves Johann Elizabeth Ramjoie, Sergei Andreevich Sergeev, Mark Vlaar, Vladimir Aleksandrovich Zakharov, Gennadii Dimitrievich Bukatov