Contains At Least One Additional Specified Material Patents (Class 526/124.3)
  • Publication number: 20090306315
    Abstract: The invention relates to a process for preparing a polymerization catalyst component wherein a solid compound with formula Mg(OR1)xCl2-x wherein x is larger than 0 and smaller than 2, and each R1, independently, represents an alkyl group, said compound being obtained by reacting a Grignard compound with an alkoxy- or aryloxy-containing silane compound, is contacted with at least one activating compound selected from the group formed by internal electron donors and compounds of formula M(OR2)v-w(R3)w, wherein M can be Ti, Zr, Hf, Al or Si, each R2 and R3, independently, represent an alkyl, alkenyl or aryl group, v is the valency of M and w is smaller than v, in the presence of an inert dispersant to give an intermediate reaction product, and wherein the intermediate reaction product is contacted with a halogen-containing Ti-compound. A catalyst system comprising said component shows improved performance in olefin polymerization.
    Type: Application
    Filed: May 23, 2007
    Publication date: December 10, 2009
    Inventors: Yves Johann Elizabeth Ramjoie, Mark Vlaar, Nicolaas Hendrika Friederichs, Sergei Andreevich Sergeev, Vladimir Aleksandrovich Zakharov, Gennadii Dimitrievich Bukatov, Mansour Taftaf, Atieh Aburaqabah
  • Publication number: 20090286942
    Abstract: Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of an olefin containing a solid titanium catalyst component and an antistatic agent. Also disclosed are methods of making a polyolefin involving contacting an olefin with a catalyst system containing an antistatic agent. The use of the antistatic agent added to the catalyst system can improve flowability and/or dispersibility of the catalyst system.
    Type: Application
    Filed: May 13, 2008
    Publication date: November 19, 2009
    Applicant: BASF CATALYSTS LLC
    Inventors: Stephen L. Van Pelt, Neiman T. Eaton
  • Patent number: 7615602
    Abstract: The invention relates to a process for producing a polypropylene film having a small dynamic coefficient of friction (CoF) and to a film obtained by this process. The invention further relates to the use of a polypropylene composition in a film forming process in order to reduce the required amount of slip agent for achieving a certain CoF and, alternatively, to the use of a polypropylene composition in a film forming process in order to reduce the required storage time for achieving a certain CoF.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: November 10, 2009
    Assignee: Borealis Technology Oy
    Inventors: Johannes Wolfschwenger, Manfred Kirchberger, Peter Niedersuess, Holger Poehler, Peter Denifl, Timo Leinonen
  • Patent number: 7605215
    Abstract: A process for producing an olefin copolymerization catalyst, comprising the step of contacting, with one another, (A) a solid catalyst component containing a titanium atom, a magnesium atom and a halogen atom, (B) an organoaluminum compound and/or organoaluminumoxy compound, and (C) a nitrogen-containing aromatic heterocyclic compound, whose one or more carbon atoms adjacent to its nitrogen atom are linked to an electron-donating group, or a group containing an electron-donating group; and a process for producing an olefin copolymer using the an olefin copolymerization catalyst.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: October 20, 2009
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinya Nakahara, Shin-ichi Kumamoto
  • Patent number: 7598333
    Abstract: Low-viscosity drag reducers, systems for delivering low-viscosity drag reducers, and methods of making low-viscosity drag reducers are disclosed. The low-viscosity drag reducers have a viscosity less than 350 cP at a shear rate of 250 sec?1 and a temperature of 60° F. This low-viscosity allows the drag reducers to be delivered through a long and relatively small diameter conduit of a subsea umbilical line without an unacceptable level of pressure drop or plugging of the conduit. The low-viscosity drag reducers can be delivered to a subsea flowline carrying fluids produced from a subterranean formation to thereby provide significant drag reduction in the flowline.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 6, 2009
    Assignee: ConocoPhillips Company
    Inventors: Timothy L. Burden, Kenneth L. Smith, Allan Browne, William F. Harris
  • Patent number: 7592286
    Abstract: A process for preparing a catalyst component, comprising a Mg compound a Ti compound and an electron donor compound (ED) selected from alcohol, glycols, esters, ketones, amines, amides, nitrites, alkoxysilanes and aliphatic ethers as essential compounds, comprising two or more steps of reaction involving the use of at least one of said essential compounds as fresh reactant alone or in a mixture in which it constitutes the main component, said process being characterized by the fact that in the last of said one or more reaction steps the essential compound used as a fresh reactant is the ED compound.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: September 22, 2009
    Assignee: Basell Poliolefine Italia s.r.l.
    Inventors: Giampiero Morini, Tiziano Dall'Occo, Fabrizio Piemontesi, Rosa Spoto, Paolo Vincenzi, Gianni Vitale
  • Patent number: 7592285
    Abstract: The present invention provides for a method for preparing a storable fluidic olefin polymerisation catalyst composition, said catalyst comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC), or of an actinide or lanthanide, and the use of such composition for polymerising ?-olefins.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: September 22, 2009
    Assignee: Borealis Technology OY
    Inventors: Petri Rekonen, Pauli Leskinen
  • Patent number: 7582711
    Abstract: The present invention relates to catalyst systems for polyolefin production, and more particularly, to catalyst systems for polyolefins used in producing films.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: September 1, 2009
    Assignee: Univation Technologies, LLC
    Inventors: Chi-I Kuo, Steven K. Ackerman
  • Patent number: 7582712
    Abstract: Methods and apparatus to form a catalyst precursor, comprising combining in a reactor magnesium, an alkoxysilane compound, a halogenized silicon compound, a halogenized transition metal compound, a substituted aromatic furan compound having a structural formula, and an alkyl halide or aromatic halide compound to obtain a solid catalyst precursor, wherein the alkoxysilane compound and halogenized silicon compound are combined prior to either being exposed to the halogenized transition metal compound, and wherein the alkyl halide or aromatic halide compound is introduced to the reactor as the final step.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: September 1, 2009
    Assignee: Formosa Plastics Corporation, U.S.A.
    Inventors: Guangxue Xu, Honglan Lu
  • Publication number: 20090189127
    Abstract: An optical resin lens characterized in comprising a polymer prepared employing a production method including a process which polymerizes olefin employing titanium halide and a catalyst comprised of the organic aluminum represented by Formula RnAlX3-n (wherein 1<n?2, R represents a hydrocarbon group, and X represents a halogen atom).
    Type: Application
    Filed: February 14, 2005
    Publication date: July 30, 2009
    Inventors: Kazuaki Nakamura, Yasuo Kurachi
  • Patent number: 7566676
    Abstract: The present invention relates to a preparation method of solid titanium catalyst for olefin polymerization comprising the steps of: (1) preparing a magnesium compound solution by dissolving a magnesium halide compound into a mixed solvent of a cyclic ether and one or more of alcohol; (2) preparing a carrier by adding firstly a titanium halide compound to the magnesium compound solution at low temperature, elevating the temperature of the resulted solution or aging it, and then thereto adding secondly the titanium halide compound additionally; (3) preparing a titanium catalyst by reacting the carrier with a titanium compound and an electron donor; and (4) washing the titanium catalyst with hydrocarbon solvent at high temperature.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: July 28, 2009
    Assignee: Samsung Total Petrochemicals Co., Ltd.
    Inventors: Chun-Byung Yang, Ho-Sik Chang, Ki-Hwa Lee
  • Patent number: 7560521
    Abstract: A catalyst component for the polymerization of olefins comprising a titanium compound, a Mg-dihalide, a difunctional electron donor compound (ED) selected from diesters, diketones, diamines or diethers, and a monofunctional electron donor compound (MD) selected from ethers, esters, amines or ketones, wherein a molar ratio ED/MD is higher than 10.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: July 14, 2009
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Gianni Collina, Ofelia Fusco, Diego Brita
  • Patent number: 7531605
    Abstract: A process for producing a polyolefin-based resin composition comprises, in the first polymerization stage, polymerizing an ?-olefin having 4 to 20 carbon atoms, a styrene or a cyclic olefin in the presence of a specific catalyst and, in the second polymerization stage, copolymerizing the obtained polymer with an ?-olefin having 2 to 20 carbon atoms, a styrene or a cyclic olefin in the presence of a polyene. A polypropylene composition has a branching parameter a and a branching index g in specific ranges. The curve showing the change in viscosity under elongation with time, the degradation parameter D or the content of a high molecular weight component is specified. The polyolefin-based resin composition exhibits excellent uniformity and improved workability in melting due to improved tension in melted condition. The polypropylene composition exhibits excellent melting elasticity and secondary workability and provides foamed molded articles, sheets and blow molded articles.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: May 12, 2009
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Shuji Machida, Masayuki Shinohara, Tatsuya Housaki
  • Patent number: 7521512
    Abstract: A catalyst composition for the polymerization of olefins comprising the combination of one or more Ziegler-Natta procatalysts comprising one or more transition metal compounds; one or more aluminum containing cocatalysts; and a mixture comprising two or more selectivity control agents (SCA's), corresponding to the formula: (CH3O)nSi(OR)4-n, wherein R, independently each occurrence, is C2-12 alkyl, C3-12 cycloalkyl, C6-18 aryl or (poly)alkyl-substituted aryl, or C7-18 poly(aryl)-substituted alkyl, and n is an integer from zero to 4.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: April 21, 2009
    Assignee: Union Carbide Chemicals & Plastics Technology LLC
    Inventor: Stanley E. Wilson
  • Patent number: 7482413
    Abstract: The present invention relates to MgCl2.(EtOH),m(ROH)n(H2O)p adduct in which R is a C1-C15 hydrocarbon group different from ethyl, n and m are indexes, higher than 0, satisfying the equations (n+m)?0.7 and 0.05?n/(n+m)?0.95 and p is a number ranging from 0 to 0.7 with the proviso that when R is methyl and (n+m) is in the range of 0.7 to 1, the value of n/(n+m) ranges from 0.05 to 0.45. The catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity with respect to the catalysts prepared from the adducts of the prior art.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: January 27, 2009
    Assignee: Basell Poliolefine Italia s.r.l.
    Inventors: Giampiero Morini, Giulio Balbontin, Fabrizio Piemontesi, Maria Fusto, Gianni Vitale, Giansiro Prini
  • Patent number: 7470764
    Abstract: It has been discovered that using n-butylmethyldimethoxysilane (BMDS) as an external electron donor for Ziegler-Natta catalysts can provide a catalyst system that may prepare polypropylene films with improved properties. The catalyst systems of the invention provide for controlled chain defects/defect distribution and thus a regulated microtacticity. Consequently, the curve of storage modulus (G?) v. temperature is shifted such that the film achieves the same storage modulus at a lower temperature enabling faster throughput of polypropylene film through a high-speed tenter.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: December 30, 2008
    Assignee: Fina Technology, Inc.
    Inventors: Kenneth Paul Blackmon, David J. Rauscher, Michael Ray Wallace
  • Patent number: 7465775
    Abstract: This invention relates to a process for the production of a polymer film or fibre wherein a polymer composition comprising a propylene homo- or copolymer is formed into a film or fibre, and wherein said propylene homo or copolymer is produced in a process which comprises the polymerization of propylene monomers or propylene monomers and one or more types of comonomers in the presence of a high yield Ziegler-Natta olefin polymerization catalyst, which catalyst comprises a component in the form of particles having a predetermined size range which has been produced in a process comprising: a) preparing a solution of a complex of a Group 2 metal and an electron donor by reacting a compound of said material with said electron donor or a precursor thereof in an organic liquid reaction medium, b) reacting said complex in solution with a compound of a transition metal to procedure an emulsion the dispersed phase of which containing more than 50 mol % of the Group 2 metal in said complex, c) maintaining the particles
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: December 16, 2008
    Assignee: Borealis Technology Oy
    Inventors: Torvald Vestberg, Pirjo Jääskeläinen
  • Patent number: 7465776
    Abstract: High melt flow rate high crystallinity polypropylene homopolymer are produced in a bulk polymerization process using a Ziegler-Natta catalyst containing a combination of two internal electron donors and selected external donors. The high melt flow rate, high crystallinity polypropylene homopolymers produced according to the current invention display improved flexural modulus and tensile yield stress when nucleated.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: December 16, 2008
    Assignee: Sunoco, Inc. (R&M)
    Inventors: Craig Meverden, Andrew Schnitgen, Sehyun Kim
  • Patent number: 7449528
    Abstract: The present invention relates to a supported catalyst containing titanium, its preparation and it use in the homo-, co-, and ter-polymerization of olefin-unsaturated compounds. The present invention also relates to a catalytic system comprising a supported catalyst based on titanium and a co-catalyst selected from organo-derivatives of aluminum. More specifically, the present invention relates to catalyst supported on silica, obtained by reacting a titanium halocarboxylate and a magnesium halocarboxylate with an aluminum chloroakylderivative, in the presence of a carrier consisting of high porosity silica. The above reaction essentially takes place in the pores of the silica itself.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: November 11, 2008
    Assignee: Polimeri Europa S.p.A.
    Inventors: Francesco Masi, Maria Rivellini, legal representative, Stefano Santi, legal representative, Laura Santi, legal representative, Anna Sommazzi, Antonio Proto, Mario Polesello, Andrea Vallieri, Roberto Santi
  • Patent number: 7439313
    Abstract: A MgCl2.mEtOH.nH2O adducts, where 3.4<m?4.4, 0?n?0.7, characterized by an X-ray diffraction spectrum, taken under the condition set forth above, in which, in the range of 2? diffraction angles between 5° and 10°, at least two diffraction lines are present at diffraction angles 2? of 9.3±0.2°, and 9.9±0.2°, the most intense diffraction lines being the one at 2? of 9.3±0.2°, the intensity of the other diffraction line being less than 0.4 times the intensity of the most intense diffraction line. Catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity and/or porosity with respect to the catalysts prepared from the adducts of the prior art.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: October 21, 2008
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Daniele Evangelisti, Gianni Collina, Ofelia Fusco, Mario Sacchetti
  • Patent number: 7435370
    Abstract: A fiber and a process for obtaining same from a high-modulus polyethylene, extrudable in state-of-the-art equipment and in the absence of previous solubilization in any kind of organic solvent is described, the process comprising providing such a polyethylene, introducing it in a state-of-the-art extruder, extruding it according to a temperature pattern, obtaining an extrudate that is directed to a cooling bath to have its temperature reduced, then directing the extrudate to a first stretcher where it is stretched or drawn into a fiber of improved tenacity, at a first velocity v1, then heating the fiber at nearly 90° C. and then directing said fiber to a second stretcher to be drawn at a final velocity v2, wherein v1<v2, at a draw ratio of 2/1 until 65/1. The tenacity of the polyethylene fiber obtained by the said process attains at least 4 gf/den, which makes it useful to naval and offshore applications.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: October 14, 2008
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventors: Dellyo Ricardo dos Santos Alvares, Roberto Barcala Haag
  • Patent number: 7427653
    Abstract: A catalyst component for olefin (co)polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ED) belonging to ethers, esters, amines, ketones, or nitriles, characterized in that the molar ratio Mg/Ti is higher than 5, and the molar ratio ED/Ti is higher than 3.5. The said catalyst components display a homogeneous distribution of the comonomer in and among the copolymer chains.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: September 23, 2008
    Assignee: Basell Poliolefine Italia S.p.A
    Inventors: Diego Brita, Gianni Collina, Giampiero Morini, Gianni Vitale
  • Publication number: 20080227936
    Abstract: The present invention provides a method for supporting a nonmetallocene olefin polymerization catalyst, comprising the following steps: a carrier reacts with a chemical activator to obtain a modified carrier; a magnesium compound is dissolved in a tetrahydrofuran-alcohol mixed solvent to form a solution, then the modified carrier is added to the solution to perform a reaction, then filtered and washed, dried and suction dried to prepare a composite carrier; a nonmetallocene olefin polymerization catalyst is dissolved in a solvent, and then reacts with said composite carrier, then is washed and filtered, dried and suction dried, to prepare a supported nonmetallocene olefin polymerization catalyst. The present invention further relates to a supported nonmetallocene olefin polymerization catalyst as prepared by this method.
    Type: Application
    Filed: October 21, 2005
    Publication date: September 18, 2008
    Applicant: YANGZI PETROCHEMICAL COMPANY CO., LTD.
    Inventors: Houliang Dai, Houping You, Chuanfeng Li, Xiaoli Yao, Lijin Zhou, Xiaoqing Li, Yarning Wang, Zhonglin Ma, Jiye Bai
  • Patent number: 7420022
    Abstract: External donor systems, catalyst systems and olefin polymerization processes are described herein. The external donor systems generally include a first external donor represented by the general formula SiR2m(OR3)4-m, wherein each R2 is independently selected from alkyls, cycloalkyls, aryls and vinyls, each R3 is independently selected from alkyls and m is from 0 to 4. The external donor systems further include a second external donor represented by the general formula SiR4m(OR5)4-m, wherein each R4 is independently selected from alkyls, cycloalkyls, aryls and vinyls, each R5 is independently selected from alkyls, m is from 0 to 4 and at least one R4 is a C3 or greater alkyl.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: September 2, 2008
    Assignee: Fina Technology, Inc.
    Inventors: Kenneth P. Blackmon, Shabbir A. Malbari
  • Patent number: 7420021
    Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more monoesters of aromatic carboxylic acid internal electron donors; one or more aluminum containing cocatalysts; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 98.0 to 99.9 mol percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 2.0 to 0.1 mol percent of one or more alkoxysilane compounds.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: September 2, 2008
    Assignee: Union Carbide Chemicals & Plastics Technology LLC
    Inventor: Linfeng Chen
  • Patent number: 7402637
    Abstract: The invention relates to a method for producing a poly-1-olefin by polymerization of a 1-olefin of the formula R4C?CH2, in which R4 is hydrogen or an alkyl radical having from 1 to 10 carbon atoms, in suspension, in solution or in the gas the gas phase, at a temperature of from 20 to 200° C. and a pressure of from 0.5 to 50 bar, in the presence of a catalyst which consists of the product of the reaction of a magnesium alkoxide with a transition-metal compound (component a) and an organometallic compound (component b), whose component (a) has been produced by reacting a transitionmetal compound of titanium, zirconium, vanadium or chromium with a gelatinous dispersion of the magnesium alkoxide in an inert hydrocarbon.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: July 22, 2008
    Assignee: Bassell Poliolefine GmbH
    Inventors: Ludwig Böhm, Joachim Berthold
  • Patent number: 7399812
    Abstract: The present invention relates to silicon ether compounds having a general formula (I), a method for the preparation thereof and use thereof as a component of catalysts for polymerization of olefins. In particular, in propylene polymerization, catalyst systems comprising the silicon ether compounds as external electron donor component exhibit good hydrogen response, and can be used to prepare polymer having high isotacticity at high yield. wherein R1-R10 groups are as defined in the description.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: July 15, 2008
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Lunjia Xie, Mingzhi Gao, Siyuan Zhao, Jing Ma, Zhufang Sun, Haitao Liu, Tianyi Li, Mingsen Zhang, Changjiang Wu
  • Patent number: 7399809
    Abstract: A method of modifying a polyethylene is disclosed. In the method ethylene or a mixture of ethylene and a C3-C10 ?-olefin is polymerized in an organic solvent with a Ziegler or single-site catalyst to form an initial polyethylene solution. The initial polyethylene solution is then reacted with a free radical initiator to produce a modified polyethylene. The modified polymer has an enhanced melt elasticity and increased long chain branching index, and is essentially free of gel.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: July 15, 2008
    Assignee: Equistar Chemicals, LP
    Inventors: Andrew J. Scheie, Mark K. Reinking
  • Publication number: 20080161513
    Abstract: The catalyst for olefin polymerization contains three components A, B and C. The component A is a solid catalyst containing titanium, magnesium, chlorine element and an internal electron donor, the internal electron donor consists of 1,4-diether [2,2?-dialkoxy-1,1?-biphenyl, 2,2?-dialkoxy-1,1?-binaphthalene, 10,10?-dialkoxy-9,9-biphenanthrene] and organic acid ester or 1,3-diether [9,9-bis(methoxymethyl)fluorine, 2,2-dialky 1-1,3-dimethoxypropane]; the component B is an organoaluminum compound; the component C is external electron donor-organic silicon compound or the 1,4 aromatic diether. The catalyst has high catalytic activity, and can be adjusted in the range from 40,000 to 150,000 gPP/gCat when used in propylene polymerization. The polymer made therefrom has isotactivity of 80 to 99 percent and the molecular weight distribution can be adjusted in a wide range. The invention provides a novel method for preparing the 1,4 aromatic diether.
    Type: Application
    Filed: February 24, 2006
    Publication date: July 3, 2008
    Applicants: YINGKOU XIANGYANG CATALYST CO., LTD., DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Licai Wang, Zhanxian Gao, Wei Li, Guotong Zheng, Qingxin Dong, Riping Liu, Xiaohuan Wang, Nan Zhang, Jingzhuang Wang, Shimian Cai
  • Patent number: 7393910
    Abstract: A process for the polymerization of olefin monomers comprising contacting ethylene or a mixture of ethylene and one or more C4-8 ? olefins with a catalyst composition comprising one or more Group 3-10 transition metal containing, Ziegler-Natta, procatalyst compounds; one or more alkylaluminum cocatalyts; and one or more polymerization control agents, said process being characterized in that at least one such polymerization control agent is an alkyl or aryl, ester of an aliphatic or aromatic (poly)carboxylic acid optionally containing one or more substituents comprising a Group 13, 14, 15, or 16 heteroatom.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: July 1, 2008
    Assignee: Dow Global Technologies Inc.
    Inventors: Richard E. Campbell, Jr., Linfeng Chen, Roger B. Painter, Robert N. Reib, Michael W. Tilston
  • Publication number: 20080146756
    Abstract: A catalyst component for the polymerization of olefins comprising a titanium compound, a Mg-dihalide, a difunctional electron donor compound (ED) selected from diesters, diketones, diamines or diethers, and a monofunctional electron donor compound (MD) selected from ethers, esters, amines or ketones, wherein a molar ratio ED/MD is higher than 10.
    Type: Application
    Filed: August 5, 2005
    Publication date: June 19, 2008
    Applicant: Basell Poliolefine Italia S.p.A.
    Inventors: Gianni Collina, Ofelia Fusco, Diego Brita
  • Patent number: 7388060
    Abstract: The invention relates to a catalyst component for olefin (co)polymerization, to preparation thereof, to a catalyst comprising the same, and to use thereof in olefin (co)polymerization. The catalyst component of the invention comprises magnesium, titanium, halogen, inner electron donor compound, and alkoxy group derived from a surface modifier, wherein the content of the alkoxy group derived from the surface modifier is in a range of from 0.01 to 3 percent by weight, based on the weight of the catalyst component.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: June 17, 2008
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry
    Inventors: Zhiwu Wang, Zhong Tan, Zhengyang Guo, Kai Zhang, Tianyi Li, Jun Xiao, Peng Kou, Liang Pan, Li'an Yan, Xingbo Li, Huijuan Xu, Haixiang Cui, Yu Wang, Ling Yang
  • Patent number: 7388061
    Abstract: The present invention provides a solid catalyst component for the polymerization of olefins, comprising magnesium, titanium, a halogen and an electron donor, wherein said electron donor comprises at least one selected from the group consisting of ester of polyol of the formula (I): R1CO—O—CR3R4—A—CR5R6—O—CO—R2??(I) wherein, R1 and R2 groups, which may be identical or different, can be substituted or unsubstituted hydrocarbyl having 1 to 20 carbon atoms, R3-R6 groups, which may be identical or different, can be selected from the group consisting of hydrogen, halogen or substituted or unsubstituted hydrocarbyl having 1 to 20 carbon atoms, R1-R6 groups optionally contain one or more hetero-atoms replacing carbon, hydrogen atom or the both, said hetero-atom is selected from the group consisting of nitrogen, oxygen, sulfur, silicon, phosphorus and halogen atom, two or more of R3-R6 groups can be linked to form saturated or unsaturated monocyclic or polycyclic ring A is a single bond or bivalent linking group wit
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: June 17, 2008
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Mingzhi Gao, Haitao Liu, Zhulan Li, Jun Wang, Juxiu Yang, Tianyi Li, Xiaodong Wang, Changxiu Li, Chunming Ding
  • Patent number: 7378476
    Abstract: An olefin polymerization process comprises gas-phase polymerization of at least one olefin monomer in a reactor using a Ziegler-Natta or metallocene catalyst system in the presence of at least one suitable radical-generating compound in an amount sufficient for polymer modification and subsequent stabilization of such compound and generated radicals before post-reactor heat processing.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: May 27, 2008
    Assignee: Ineos USA LLC
    Inventors: Norman W. Carlson, Chi-Hung Lin, Jerome A. Streeky, Carl Towner, Barry F. Wood
  • Patent number: 7371806
    Abstract: Process for the preparation of ethylene copolymers comprising the copolymerization of ethylene with olefins CH2?CHR, in which R is a hydrocarbyl radical with 1-12 carbon atoms carried out in the presence of a catalyst comprising (i) a solid catalyst component comprising Mg, Ti, halogen and specific 1,3-diethers of formula (I) in which R is a C1-C10 hydrocarbon group, R1 is methyl or ethyl, optionally containing a heteroatom, and R2 is a C4-C12 linear alkyl optionally containing a heteroatom, and (ii) an organo-Al compound. The obtained copolymers are endowed with good comonomer distribution.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: May 13, 2008
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Angelo Ferraro, Tiziano Dall'Occo, Giuliano Cecchin
  • Patent number: 7371802
    Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2?CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from thiophene dicarboxylate derivatives of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: May 13, 2008
    Assignee: Basell Poliolefine Italia s.r.l.
    Inventors: Yuri Gulevich, Giampiero Morini, Maria Fusto
  • Patent number: 7365137
    Abstract: A multistep process for the polymerization of one or more olefins comprising a first step of polymerizing one or more of said olefins in the presence of a catalyst of the Ziegler-Natta type, a step wherein the polymer obtained in the first step is contacted with a catalyst system comprising an half-sandwich metallocene compound, followed by a second polymerization step. The amount of homo- or copolymer of olefins produced in the first polymerization step is between 10% to 90% by weight of the total amount of polymer produced.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: April 29, 2008
    Assignee: Basell Polyolefine GmbH
    Inventors: Luigi Resconi, Giovanni Baruzzi
  • Patent number: 7365136
    Abstract: The present invention concerns a high melt strength propylene polymer or copolymer suitable for manufacturing foams and thermoformed product exhibiting a melt strength of at least 3 g and comprising a high molar mass portion and a low or medium molar mass portion. The polymers are produced by subjecting propylene and optionally other olefins to polymerization in a plurality of polymerization reactors connected in series, employing different amounts of hydrogen as a molar mass modifier in at least two of the reactors, and carrying out the polymerization reaction in the presence of a catalyst system capable of catalyzing the formation of a high molar mass polymerization product having a MFR2 of less than 0.1 g/10 min and a low or medium molar mass polymerization product having a MFR2 of more than 0.5 g/10 min.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: April 29, 2008
    Assignee: Borealis Technology Oy
    Inventors: Paivi Huovinen, Ali Harlin, Pirjo Jaaskelainen, Amir Karbasi, Nina Manner
  • Patent number: 7354981
    Abstract: The present invention discloses a polyethylene catalyst and a process for preparing the same, said catalyst being composed of a main component of catalyst and a cocatalyst, wherein the main component of catalyst is prepared by reacting: (1) a magnesium-alcohol complex, (2) an alkyl aluminum compound having a formula R3nAlCl3-n supported on silica, and (3) a titanium compound having a formula Ti(OR2)mCl4-m, and the cocatalyst is an organic aluminum compound. The catalyst of the present invention has advantages including high polymerization activity, less difference between the polymerization activities at low hydrogen level condition and at high hydrogen level condition, stable polymerization reaction, good particle morphology of catalyst, and less fine powder of polymer product.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: April 8, 2008
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Chemical Industry
    Inventors: Mingwei Xiao, Shijiong Yu, Xiaofeng Ye
  • Patent number: 7351778
    Abstract: The present invention provides a catalyst component for polymerization of olefin CH2?CHR, in which R is hydrogen or C1-C12 alkyl or aryl, comprising magnesium, titanium, a halogen and an electron donor compound (a) which is at least one selected from the group consisting of dibasic ester compounds of the formula (I), and said catalyst component optionally further comprising an electron donor compound (b) selected from the group consisting of aliphatic dicarboxylic esters and aromatic dicarboxylic esters, and/or an electron donor compound (c) selected from the group consisting of 1,3-diether compounds of formula (IV): wherein, R1, R? and A are as defined in the description, wherein RI-RVIII are as defined in the description, and a catalyst comprising the catalyst component.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: April 1, 2008
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry China Petroleum & Chemical Corporation
    Inventors: Mingzhi Gao, Haitao Liu, Tianyi Li, Xianzhong Li, Changxiu Li, Jiyu Li, Lingyan Xing, Juxiu Yang, Jing Ma, Xiaodong Wang, Chunmin Ding
  • Patent number: 7351678
    Abstract: The invention relates to the use of nitrogenous aluminium organyl complexes of general formula (I) as co-catalysts in heterogeneous polymerisation reactions of propene. In said formula: R, R?, R1 and R1? independently of one another represent branched or unbranched C1-C7 alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl or alkynyl; R2 represents unsubstituted, monoalkylated or polyalkylated and/or monofluorinated or polyfluorinated aromatic hydrocarbons from group (II); R3 and R4 independently of one another represent CH2, CF2 oder C(R1)2; m stands for 0, 1 or 2; n stands for 0, 1 or 2; o stands for 0 or 1, all independently of one another.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: April 1, 2008
    Assignee: Merck Patent GmbH
    Inventors: Kartin Köhler, Herbert Schumann, Birgit Corinna Wassermann, Wilfried Wassermann, Katharina Lange, Sebastian Dechert, Markus Hummert, Stefan Schutte, Walter Kaminsky, Andrea Eisenhardt, Björn Heuer, Andre Laban
  • Patent number: 7348383
    Abstract: A Ziegler-Natta catalyst composition comprising a solid mixture formed by halogenation of: Al) a spray-dried catalyst precursor comprising the reaction product of a magnesium compound, a non-metallocene titanium compound, and at least one non-metallocene compound of a transition metal other than titanium, with A2) an organoaluminium halide halogenating agent, a method of preparing, precursors for use therein, and olefin polymerization processes using the same.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: March 25, 2008
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventors: Mary T. Zoeckler, Burkhard E. Wagner, Sun-Chueh Kao
  • Publication number: 20080051535
    Abstract: Polymerization processes and polymers formed therefrom are described herein. Such processes generally include providing a catalyst system, introducing the catalyst system to a reaction zone, introducing 1-chlorobutane to the reaction zone, introducing an olefin monomer to the reaction zone, contacting the olefin monomer with the catalyst system in the presence of the 1-chlorobutane to form a polyolefin and withdrawing the polyolefin from the reaction zone. The catalyst system is generally formed from a process including contacting a magnesium dialkoxide compound with a first agent to form a first compound, contacting the first compound with a plurality of halogenating/titanating agents to form a reaction product and contacting the reaction product with an activating agent to form the catalyst system.
    Type: Application
    Filed: August 23, 2006
    Publication date: February 28, 2008
    Applicant: Fina Technology, Inc.
    Inventors: Kayo Vizzini, Steven Gray
  • Patent number: 7332556
    Abstract: Crystalline polymers and copolymers of propylene having total MIL values>2 g/10 minutes, total [?] values in tetrahydronaphthalene at 135° C.?2.8 dl/g, mW/MN values>20, a fraction insoluble in xylene at 25° C.?94, and including from 10 to 60% by weight of a fraction (A) having [?]?2.6, are prepared by way of sequential polymerization in at least two stages, in the presence of a particular Ziegler-Natta catalysts supported on magnesium halides. These polymers have high melt strength, high mechanical properties, and are particularly adequate for the manufacture of articles by using various conversion technologies, such as for example extrusion in thin sheets to be subjected to thermoforming, as well as for injection molding, and blow molding.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: February 19, 2008
    Assignee: Basell Poliolefine Italia s.r.l.
    Inventors: Giuliano Cecchin, Anteo Pelliconi, Antonio Ciarrocchi, Paolo Ferrari
  • Patent number: 7329626
    Abstract: A method for making a solid catalytic component for a Ziegler-Natta catalyst includes contacting a particulate porous support with a solution of a hydrocarbon soluble organomagnesium precursor compound in a hydrocarbon solvent; and reacting said hydrocarbon soluble organo-magnesium precursor compound with an amount of aliphatic or aromatic alcohol, said amount being within an acceptable range of a molar equivalent of aliphatic or aromatic alcohol calculated according to formula (I): Equ Alkanol = 2 ? · [ ( mmole ? ? MgR ? / ? g ? ? support ) - 2.1 - 0.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: February 12, 2008
    Assignee: Lummus Novolen Technology GmbH
    Inventors: Frank Wolf Spaether, David Andrew Presken
  • Patent number: 7326757
    Abstract: Disclosed are catalyst systems and methods of making the catalyst systems for the polymerization of an olefin containing a solid titanium catalyst component containing an inorganic titanium compound, a magnesium alcohol adduct made from an inorganic magnesium compound and an alcohol, and a porous support having at least one of a certain specific surface area, a certain pore volume, and a certain median particle size. The catalyst system may further contain an organoaluminum compound and optionally an organosilicon compound. Also disclosed are methods of making polyolefins.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: February 5, 2008
    Assignee: BASF Catalysts LLC
    Inventors: Zhidong Zhu, Main Chang
  • Publication number: 20080015316
    Abstract: Provided are a propylene polymer compositions comprising a propylene copolymer and a propylene homopolymer polymerized in the presence of the propylene copolymer. The propylene polymer compositions exhibit properties such as broad molecular weight distribution, low crystallinity, high solubles and superior crystallization kinetics and are useful in fast cycle-time processing methods such as injection molding, sheet extrusion, thermoforming, and oriented film fabrication. Also provided is a process for preparing the propylene polymer compositions in the presence of a catalyst and at least two electron donors using sequential or parallel polymerization reaction zones. Finally, articles made from the propylene polymer composition are provided, particularly articles requiring high stiffness, high heat deflection temperature, good fatigue resistance and low temperature impact resistance such as appliance parts.
    Type: Application
    Filed: July 12, 2006
    Publication date: January 17, 2008
    Inventors: Chon-Yie Lin, Stephen Francis Broadbent
  • Patent number: 7316987
    Abstract: Catalyst component for the polymerization of olefins obtainable by contacting: (i) a magnesium halide, or a suitable precursor; (ii) a monofunctional electron donor compound (MD) selected from ethers, esters, amines or ketones, used in such amounts to have Mg/MD molar ratios of at least 50; (iii) a titanium compound of formula Ti(ORI)n-yXy, where n is the valence of titanium, y is a number between 1 and n, X is halogen, and RI is a C1-C15 hydrocarbon group and, optionally, (iv) an electron donor compound (ED). The said catalyst component shows improved activity in the polymerization of olefins.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: January 8, 2008
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Gianni Collina, Ofelia Fusco, Diego Brita
  • Patent number: 7300902
    Abstract: The present invention provides an ethylene polymerization catalyst. The present invention also provides a process for preparing the ethylene polymerization catalyst, comprising reacting powdered magnesium with an alkyl halide of formula RX in the presence of an ether solvent to form a magnesium compound having a structure represented by the formula (RMgX)p(MgX2)q, in which R is an alkyl group having from 3 to 12 carbon atoms, X is halogen, and molar ratio of q to p is in the range of from larger than 0 to 1, impregnating the magnesium compound onto silica carrier, reacting the silica loading the magnesium compound with an alkyl halide of formula R1X, a titatium compound and an alkyl aluminum compound to form a main catalyst component, contacting the main catalyst component with a cocatalyst component to form catalyst for ethylene polymerization. The present invention also relates to the use of the catalyst in the polymerization of ethylene.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: November 27, 2007
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Chemical Industry
    Inventors: Mingwei Xiao, Shijiong Yu, Xiaofeng Ye, Zixiao Chai
  • Publication number: 20070213482
    Abstract: The present invention provides a main catalyst component for olefin polymerization which is prepared by a process comprising the steps of: (i) reacting a magnesium compound in nascent state having a rational formula (RMgX)y(MgX2), in which R is an alkyl having from 3 to 12 carbon atoms, X is a halogen, and y is a value of from 0.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 13, 2007
    Applicants: China Petroleum & Chemical Corporation, SHANGHAI RESEARCH INSTITUTE OF CHEMICAL INDUSTRY
    Inventors: Mingwei Xiao, Shijiong Yu, Xiaofeng Ye