Contains At Least One Additional Specified Material Patents (Class 526/124.3)
  • Patent number: 7019090
    Abstract: The present invention relates to a catalytic component for the polymerization of olefins combining a number of catalytic components for the polymerization of olefins and to a process for preparing it. The catalytic component according to the invention is obtained by impregnation of a prepolymer with a solution of a catalytic component for the polymerization of olefins. The invention brings about control of the combination of different catalytic components and provides for improvement in the control of the quality of the polymers manufactured by virtue of the catalytic action of the combined catalytic components. Another advantage of the invention is to be able to control the morphology and the particle size distribution of the polymers by choosing the morphology of a single catalytic component. The prepolymer and the polymer obtained from the catalytic component according to the invention are also subjects of the present invention.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: March 28, 2006
    Assignee: Total Petrochemicals France
    Inventor: Jean Malinge
  • Patent number: 7005487
    Abstract: A solid catalyst component for the polymerization of olefins, comprising: an inert porous support, Mg, Ti, halogen and an electron donor selected from succinates of formula (I) wherein the radicals R1 and R2 equal to or different form each other, are hydrocarbon groups, the radicals R3, R4, R5 and R6, equal to or different from each other, are hydrogen or hydrocarbon groups.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: February 28, 2006
    Assignee: Basell Poliolefine Italia S.R.L.
    Inventors: Giulio Balbontin, Giampiero Morini
  • Patent number: 6998458
    Abstract: The present invention relates to butene-1 homopolymers, or copolymers containing up to 20% by weight of alpha olefins having from 2 to 10 carbon atoms other than butene-1, characterized by the following properties: (i) a Molecular Weight Distribution (MWD) in terms of Mw/Mn, measured by GPC analysis according to the method specified, of lower than 6; and (ii) a melt strength (measured according to the method specified below) higher than 2.8.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: February 14, 2006
    Assignee: Basell Poliolefine Italis S.p.A.
    Inventors: Gianni Vitale, Giampiero Morini, Giuliano Cecchin
  • Patent number: 6998457
    Abstract: Atactic or amorphous poly-alpha-olefins containing 100%–65% propylene and optionally up to about 35% ethylene and/or up to about 15% of a C4–C8 alpha-olefin are prepared by polymerizing the monomer(s) at 180–450° F. and at a pressure sufficient to substantially maintain the monomer(s) in the liquid phase. The polymerization is carried out in the presence of catalyst system consisting of (a) a transition metal halide selected from the group consisting of (i) a titanium trihalide and an aluminum alkyl, (ii) a titanium halide on a comminuted magnesium halide support, and (iii) a titanium halide sandwich compound and (b) aluminum alkyl as a co-catalyst. No stereoregulator or only minor amounts of a stereoregulator are used.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: February 14, 2006
    Inventor: Joseph M. Kelley
  • Patent number: 6984600
    Abstract: An olefin polymerization catalyst comprising: (A1) a solid catalyst component prepared by contacting (a1) a dialkoxymagnesium, (b1) a tetravalent titanium halide, (c1) an electron compound, and (d1) a polysiloxane, (B) an organoaluminum compound of the formula R1pAlQ3-p, and (C) an aminosilane compound of the formula (R2R3N)Si(OR4)3 has a high activity to hydrogen as compared with conventional catalysts and maintains the capability of producing polymers with a high stereoregularity at a high yield.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: January 10, 2006
    Assignees: Toho Catalyst Co., LTD, Ube Industries, LTD
    Inventors: Satoru Chosa, Kunihiko Tashino, Motozo Yoshikiyo, Hiroshi Sato
  • Patent number: 6979718
    Abstract: A clay-filled polyolefin composition and process for making it are disclosed. The process involves treatment of a non-acid-treated smectite clay with a Ziegler-Natta catalyst in the presence of a hydrocarbon and subsequent polymerization of an olefin in the presence of the treated clay and an organoaluminum cocatalyst. Results indicate that filled compositions produced by this process contain exfoliated clay.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: December 27, 2005
    Assignee: Equistar Chemicals, LP
    Inventors: Douglas D. Klendworth, Mark K. Reinking
  • Patent number: 6967231
    Abstract: A process for polymerizing ethylene is disclosed. A magnesium chloride-alcohol is used to support an organometallic complex comprising a Group 3 to 10 transition metal and an indenoindolyl ligand. The supported organometallic complex is mixed with an activator and ethylene and the ethylene is polymerized. Use of magnesium chloride containing an alcohol as the support provides an unexpected boost in catalyst activity and improves polymer rheological properties.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: November 22, 2005
    Assignee: Equistar Chemicals, LP
    Inventors: Shaotian Wang, Douglas D. Klendworth, Mark K. Reinking
  • Patent number: 6958378
    Abstract: The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and co-polymers of ethylene in the presence of (a) a solid titanium catalyst produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with an alcohol; reacting thereto an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; and adding a mixture of a titanium compound and a silicon compound; (b) organometallic compounds of Group II or III of the Periodic Table; and (c) a cyclic nitrogen compound. The catalyst for homo- and co-polymerization of ethylene, produced according to the present invention, exhibits high activity, and the polymers produced by the method of the present invention by using said catalyst have the advantages of exhibiting high bulk densities and narrow molecular weight distributions.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: October 25, 2005
    Assignee: Samsung Atofina Co., Ltd.
    Inventors: Chun-Byung Yang, Sang-Yull Kim, Yong-Bok Lee, Weon Lee
  • Patent number: 6936671
    Abstract: A process for copolymerizing ethylene with vinylsilanes is disclosed. The process uses a Ziegler-Natta catalyst and cocatalyst wherein the Ziegler-Natta catalyst is prepared from a Group 4-6 halogen-containing transition metal and a mixture of an organomagnesium compound and a silicon-containing compound. Silane-functionalized polyolefins produced using the process can be crosslinkable and can be used to bond polyolefins to polysiloxanes or other functionalized polymers.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: August 30, 2005
    Assignee: Equistar Chemicals, LP
    Inventors: Sameer D. Mehta, Mark K. Reinking
  • Patent number: 6916895
    Abstract: A new synthesis of a Ziegler-Natta catalyst uses a multi-step preparation that includes treating a magnesium dialkoxide compound with halogenating/titanating agents, an organoaluminum preactivating agent, and a heat treatment. The catalyst may be used in the polymerization of olefins, particularly ethylene, to control the molecular weight distribution of the resulting polyolefins.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: July 12, 2005
    Assignee: Fina Technology, Inc.
    Inventors: Steven D. Gray, Tim J. Coffy
  • Patent number: 6906154
    Abstract: The present invention relates to catalyst components for the polymerization of olefins comprising a titanium compound, having at least a Ti-halogen bond, and at least two electron donor compounds supported on a Mg dihalide, said catalyst component being characterized by the fact that at least one of the electron donor compounds is selected from ethers containing two or more ether groups which are further characterized by the formation of complexes with anhydrous magnesium dichloride in an amount less than 60 mmoles per 100 g of MgCl2 and by the failure of entering into substitution reactions with TiCl4 or by reacting in that way for less than 50% by moles, and at least another electron donor compound is selected from esters of mono or polycarboxylic acids. Said catalyst components are able to produce propylene polymers which, for high values of xylene insolubility, show a broad range of isotacticity.
    Type: Grant
    Filed: November 12, 2001
    Date of Patent: June 14, 2005
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Masaki Fushimi, Hirotoshi Takahashi
  • Patent number: 6897274
    Abstract: The present invention relates to a method for the prepolymerization of ?-olefin in the presence of a catalyst system which comprises (a) a magnesium supported solid complex titanium catalyst and (b) an organometallic compound of metal of Group I or III of the Periodic Table, characterized in that an inert solvent having high viscosity with molecular weight of 300 g/mole or more is used as a reaction medium.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: May 24, 2005
    Assignee: Samsung Atofina Co., Ltd.
    Inventors: Yoo-Kyoung Kim, Kun Lo, Il-Seop Kim
  • Patent number: 6887817
    Abstract: An olefin polymerization catalyst is described which includes: (A) a solid catalyst component being prepared by copulverizing a magnesium compound, an aluminum compound, an electron donor and a titanium compound, and (B) an organoaluminum compound. The present invention is also directed to a process for preparing polyolefins using the aforesaid catalyst system to polymerize olefins.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: May 3, 2005
    Assignee: Formosa Plastics Corporation, U.S.A.
    Inventors: Bing Lu, Honglan Lu, Chih-Jian Chen
  • Patent number: 6872683
    Abstract: The present invention provides a novel chelated catalyst for olefin polymerization and an olefin polymerization method using the chelated catalyst. The catalyst of the invention is a liquid titanium compound chelated with an imidazole ligand. The method for olefin polymerization of the present invention is performed using the liquid titanium compound as a main catalyst component.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: March 29, 2005
    Assignee: Samsung Atofina Co., Ltd.
    Inventor: Gap-Goung Kong
  • Patent number: 6870022
    Abstract: An ?-olefin polymer having extremely high stereoregularity, exhibiting excellent fluidity and containing a decreased amount of catalyst residues in the polymer can be obtained industrially advantageously in accordance with a process for producing an ?-olefin polymer which comprises homopolymerizing an ?-olefin or copolymerizing two or more ?-olefins in the presence of (A) a solid catalyst component comprising magnesium, titanium and a halogen, (B) an organoaluminum compound having a content of hydroaluminum compounds of 0.1% by weight or smaller and (C) an organozinc compound.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: March 22, 2005
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Takeshi Iwasaki, Tadanori Jyunke, Kiyokazu Katayama, Kenji Tanaka
  • Patent number: 6867160
    Abstract: By controlling the hold up times and temperatures for mixing the components of aluminum, titanium and magnesium based catalyst for solution polymerization it is possible to prepare a catalyst having a high activity, which prepares high molecular weight polyolefins. Generally, catalyst loses activity and produces lower molecular weight polymer at higher temperatures. The catalyst of the present invention permits comparable polymers to be produced at higher reaction temperatures.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: March 15, 2005
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Jesus Vela Estrada, Vaclav George Zboril
  • Patent number: 6861385
    Abstract: A process for preparing spherical support particles used in the preparation of catalytic components for the polymerization of olefins by (a) forming an emulsion of an adduct of a Mg dihalide and a Lewis base compound in a liquid medium, and (b) cooling the emulsion by transferring it into a cooling bath containing a cooling liquid in motion wherein the cooling liquid is moving inside a tubular zone and the ratio Ve/Vref of the velocity (Ve) of the emulsion coming from step (a) to the velocity of the cooling liquid (Vref) of step (b) is between 0.25 and 4. The resulting spherical support particles have a very narrow size distribution and particularly regular morphology.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: March 1, 2005
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Arrigo Arletti, Anna Fait
  • Patent number: 6858685
    Abstract: There is provided a process for producing a catalyst for olefin polymerization, which comprises the step of contacting (1) an organ aluminum compound, (2) an external electron donor compound and (3) a solid catalyst component obtained by a process comprising the steps of; (i) reducing a titanium compound represented by the following formula [I] with an organomagnesium compound in the presence of a fine particle and an organosilicon compound having an Si—O bond to obtain a solid product, and (ii) contacting the solid product, a halogenocompound having halogenation ability and an internal electron donor compound to obtaining the solid catalyst component.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: February 22, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ken Yoshimura, Shin-ichi Kumamoto, Makoto Satoh
  • Patent number: 6855656
    Abstract: A propylene block copolymer with a high proportion of ethylene-propylene copolymer particles (rubber component) well dispersed in a propylene polymer exhibiting well-balanced rigidity and impact resistance can be obtained by using a solid catalyst for polymerization of olefins comprising (a) a solid catalyst component with controlled morphology, comprising magnesium, titanium, and a halogen atom, having an average particle diameter, specific surface area, and pore volume in a specific range, and having a pore size distribution in which an cumulative pore volume with a pore size of 100 ? or less is more than 50%, (b) an organoaluminum compound, and (c) an organosilicon compound. The block copolymer is very useful particularly for the application of vehicle parts such as a bumper and parts for household electric appliances.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: February 15, 2005
    Assignee: Toho Catalyst Co., Ltd.
    Inventors: Motoki Hosaka, Hideo Tsukamoto, Hidetoshi Umebayashi, Makoto Nakano
  • Patent number: 6852810
    Abstract: The present invention provides a molecular blended polymer that includes two or more types of polymers blended at the molecular level. At least one monomer is polymerized in the presence of two or more kinds of catalysts supported on a mesoporous molecular sieve having a pore size of 20 ? to 500 ?. The polymerization occurs in the pore of the mesoporous molecular sieve and is controlled at the molecular level. Thus, the polymer material is controlled extremely well and the function and physical properties of the polymer material are greatly enhanced.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: February 8, 2005
    Assignee: Industrial Technology Research Institute
    Inventors: Ching Ting, Joung-Yei Chen, Shu-Hua Chan
  • Patent number: 6841503
    Abstract: There are disclosed a process for producing a solid catalyst component and a catalyst for ?-olefin polymerization, and a process for producing an ?-olefin polymer, wherein the process for producing a solid catalyst component comprises the steps of: (1) reducing a specific titanium compound with an organomagnesium compound in the presence of an organosilicon compound having an Si—O bond (and an ester compound), thereby obtaining a solid product, and (2) contacting the solid product with a halogeno compound of the 14 group element, at least one member selected from the group consisting of an electron donor compound and an organic acid halide, and a compound having a Ti-halogen bond, thereby obtaining the solid catalyst component.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: January 11, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yasuki Fujiwara, Makoto Satoh
  • Patent number: 6841633
    Abstract: A lower ?-alkene polymerization heterogeneous solid catalyst which comprises a hydrated magnesium chloride derived procatalyst, a cocatalyst comprising an organoaluminium compound and a selectivity control agent comprising an ester or ether. The procatalyst comprises a titanium tetrahalide supported on a magnesium chloride ester complex precursor. Magnesium chloride alcoholate is reacted with an activated carbonyl compound in the presence of a hydrocarbon and/or halohydrocarbon solvent to generate insitu an internal electron donor ester component of the precursor. The precursor is reacted with a titanium tetrahalide optionally in the presence of a hydrocarbon and/or halohydrocarbon solvent.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: January 11, 2005
    Assignee: Reliance Industries Limited
    Inventors: Sumit Bhaduri, Virendra Kumar Gupta
  • Patent number: 6841632
    Abstract: Solid catalyst components comprising Ti,Mg, halogen and internal electron-donor compound selected from the 1,3-diethers of formula (I) in which R is a C1-C10 alkyl group, R1 is a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and R2 is a secondary alkyl or cycloalkyl radicals different from i-propyl, optionally containing a heteroatom. The catalysts obtained by using as internal electron-donor compound the said 1,3-diethers display in the (co)polymerization of olefins an excellent balance of activity and stereospecificity that cannot be reached with the ethers known in the art.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: January 11, 2005
    Assignee: Basell Poliolefine Italis S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin, Ronald R. Andrea, Van Loon Jan Dirk
  • Publication number: 20040266609
    Abstract: A solid catalyst component for olefin polymerization in which the molar ratio of residual alkoxy groups to supported titanium is 0.60 or less is obtained by reacting the following compound (a1) with the following compound (b1) at a hydroxyl group/magnesium molar ratio of 1.0 or more, reacting the reaction mixture with the following compound (c1) at a halogen/magnesium molar ratio of 0.20 or more, reacting the resultant reaction mixture with the following compounds (d1) and (e) at a temperature of 120° C. or higher but 150° C.
    Type: Application
    Filed: April 22, 2004
    Publication date: December 30, 2004
    Inventors: Shojiro Tanase, Takanori Sadashima
  • Publication number: 20040259721
    Abstract: Disclosed is a catalyst for olefin polymerization comprising [I] a solid titanium catalyst component [S] comprising titanium, magnesium, halogen and an electron donor (b), which is obtained by bringing a solid adduct consisting of a magnesium compound and an electron donor (a) into contact with an electron donor (b) and a liquid titanium compound by at least one method selected from (A) a method of contacting the materials in a suspended state in the coexistence of an inert hydrocarbon solvent and (B) a method of contacting the material plural times individed portions and [II] an organometallic compound catalyst component [M] containing a metal selected from the groups I to III in the periodic table. By olefin polymerization with this polymerization catalyst, an olefinic (co)polymer having high stereospecificity can be obtained with high activity.
    Type: Application
    Filed: July 20, 2004
    Publication date: December 23, 2004
    Inventors: Kazuhisa Matsunaga, Masao Nakano, Masaaki Ohgizawa, Toshiyuki Tsutsui
  • Publication number: 20040254063
    Abstract: The present invention relates to an adduct comprising MgCl2, an alcohol (ROH) in which R is a C1-C10 hydrocarbon group, and a compound containing a transition metal M selected from the Groups 3 to 11 or the lanthanide or actinide groups of the Periodic Table of the Elements (new IUPAC version) in an amount such as to give a weight of M atoms lower than 10% based on the total weight of the adduct. The catalyst components that are obtained by reacting the adducts with halogenating agents show very high specific activity.
    Type: Application
    Filed: April 22, 2004
    Publication date: December 16, 2004
    Inventors: Mario Sacchetti, Daniele Evangelisti, Diego Brita, Gianni Collina
  • Publication number: 20040248729
    Abstract: The present invention provides a high-activity solid main catalyst component for ethylene polymerization, a process for preparing the same and a catalyst containing the same. The main catalyst component consists essentially of a magnesium compound, a titanium compound, an electron donor, an alkyl aluminum compound and fumed silica, and is prepared by a process comprising the step of: reacting powdered magnesium with an alkyl halide to form a magnesium compound in the nascent state; adding the magnesium compound in the nascent state together with a titanium compound and an alkyl aluminum compound into an electron donor to form a complex; adding and well dispersing a fumed silica thereto to form a homogeneous thick mixture; molding and drying the mixture to form main catalyst component particles with good particle morphology; and optionally, dispersing the main catalyst component particles into a hydrocarbon solvent or a mineral oil to form a slurry.
    Type: Application
    Filed: April 28, 2004
    Publication date: December 9, 2004
    Inventors: Mingwei Xiao, Shijiong Yu, Xiaofeng Ye
  • Patent number: 6828396
    Abstract: There are provided: (I) a solid catalyst component (A-1) for olefin polymerization, which is obtained by a process comprising the step of contacting: (a-1) a carrier of carboxyl group-carrying polymer particles having an average particle diameter of from 1 to 300 &mgr;m, and (b) a transition metal compound of the number 4 group of metals in the periodic table of elements; (II) a catalyst for olefin polymerization, which is obtained by a process comprising the step of contacting: (A-1) the above solid catalyst component, and (B) at least one compound selected from the group consisting of an organoaluminum compound and an organoaluminumoxy compound; (III) a process for producing an olefin polymer, which comprises the step of polymerizing an olefin in the presence of the above catalyst; and (IV) a process for producing the above solid catalyst component (A-1), which comprises the step of contacting: (a-1) the above carrier, and (b) the above transition metal compound.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: December 7, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tatsuya Miyatake, Masaaki Nabika, Seiki Kiuchi
  • Patent number: 6828395
    Abstract: Methods of controlling rheological properties of polymer compositions comprising at least one high molecular weight polymer and one low molecular weight polymer are disclosed. The polymer compositions are produced by polymerizing monomers in a single reactor using a bimetallic catalyst composition. A control agent such as, for example, an alcohol, ether, oxygen or amine is added to the reactor to control the rheological properties of the reactor. The polymerization takes place in the presence of rheological-altering compounds such as alkanes and aluminum alkyls. The control agents are added in an amount sufficient to counter the influences of the rheological-altering compounds.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: December 7, 2004
    Assignee: Univation Technologies, LLC
    Inventors: Fred D. Ehrman, Pradeep P. Shirodkar, Robert Lynn Santana, Porter C. Shannon
  • Patent number: 6828269
    Abstract: A catalytic composition is obtained by mixing at least one chromium compound with at least one aryloxy compound of an element M selected from the group formed by magnesium, calcium, strontium and barium, with general formula M(RO)2-nXn, where RO is an aryloxy radical containing 6 to 80 carbon atoms, X is a halogen or a hydrocarbyl radical containing 1 to 30 carbon atoms and n is a whole number that can take values of 0 to 2, and with at least one aluminum compound selected from hydrocarbylaluminum compounds (tris(hydrocarbyl)-aluminum, chlorinated or brominated hydrocarbylaluminum compounds) and aluminoxanes. The catalytic composition can be used in an ethylene oligomerization process, in particular to produce 1-hexene.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: December 7, 2004
    Assignee: Institut Francais du Petrole
    Inventors: Dominique Commereuc, Sébastien Drochon, Lucien Saussine
  • Publication number: 20040242408
    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. Said systems exhibit improved characteristics in terms of activity and stereoselectivity in comparison to conventional co-catalysts such as AlEt3 and can act simultaneously as co-catalysts and stereoselectivity promoters.
    Type: Application
    Filed: April 8, 2004
    Publication date: December 2, 2004
    Inventors: Katrin Kohler, Herbert Schumann, Birgit Corinna Wassermann, Wilfried Wassermann, Katharina Lange, Sebastian Dechert, Markus Hummert, Stefan Schutte, Walter Kaminsky, Andrea Eisenhardt, Bjorn Heuer, Andre Laban
  • Patent number: 6825146
    Abstract: A method of making a solid procatalyst composition for use in a Ziegler-Natta olefin polymerization catalyst composition, said method comprising: contacting a solid precursor composition comprising magnesium, titanium, and alkoxide moieties with a titanium halide compound and an internal electron donor in any order, in a suitable reaction medium to prepare a solid procatalyst composition, separating the solid procatalyst from the reaction medium, further exchanging residual alkoxide functionality of the solid procatalyst composition for chloride functionality by contacting the same two or more times with benzoyl chloride halogenating agent under metathesis conditions for a period of time sufficient to prepare a solid procatalyst composition having a decreased alkoxide content compared to the alkoxide content of the solid procatalyst composition before said exchange, and recovering the solid procatalyst composition.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: November 30, 2004
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Peter A. Kilty, Thomas R. Cuthbert
  • Patent number: 6825309
    Abstract: The present invention relates to catalyst components for the polymerization of olefins comprising Mg, Ti, halogen and at least two electron donor compounds, said catalyst component being characterized by the fact that at least one of the electron donor compounds, present in an amount from 20 to 50% by mol with respect to the total amount of donors, is selected from esters of succinic acids which are not extractable, for more than 25% by mol and at least another electron donor compound which is extractable, for more than 35%. The said catalyst component are capable to give polymers with high xylene insolubility, high stereoblock content and broad MWD suitable for making the polymers usable in the BOPP sector.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: November 30, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin
  • Patent number: 6825293
    Abstract: Some properties such as dart impact strength, hexane extractables and resin stickiness of a polyethylene copolymer produced in a gas phase polymerization using a Ziegler-Natta catalyst are better controlled by regulating the ratio of aluminum from the co-catalyst to the polymer production rate. This enables one to improve properties such as dart impact strength and reduce hexane extractables by changing the amount of co-catalyst fed into the reactor.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: November 30, 2004
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Shivendra Kumar Goyal, Timothy Walter Wiwchar, Victoria Ker, Mark Kelly
  • Publication number: 20040235645
    Abstract: Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of:
    Type: Application
    Filed: June 28, 2004
    Publication date: November 25, 2004
    Inventors: Giampiero Morini, Enrico Albizzati, Giulio Balbontin, Giovanni Baruzzi, Antonio Christofori
  • Publication number: 20040235644
    Abstract: Process for preparing an olefin polymerisation catalyst component in the form of particles having a predetermined size range, said process comprising the steps of a) preparing a solution of a complex of a Group 2 metal and an electron donor by reacting a compound of said metal with said electron donor or a precursor thereof in an organic liquid reaction medium; b) adding said solution of said complex to at least one compound of a transition material to produce an emulsion, the dispersed phase of which contains more than 50 mol % of the Group 2 metal in said complex; c) agitating the emulsion, optionally in the presence of an emulsion stabilizer, in order to maintain the droplets of said dispersed phase within the average size range 5 to 200 m; d) solidifying said droplets of the dispersed phase; and e) recovering the solidified particles of the olefin polymerisation catalyst component, wherein a turbulence minimizing agent (TMA) is added to the reaction mixture before solidifying said droplets of the disperse
    Type: Application
    Filed: July 6, 2004
    Publication date: November 25, 2004
    Inventors: Peter Denifl, Timo Leinonen
  • Patent number: 6818711
    Abstract: A process for polymerizing olefins using a catalyst system comprising a conventional Ziegler-Natta catalyst and an external election donor selected from the group consisting of diethers and combinations thereof. The catalyst system comprises a Ziegler-Natta catalyst having a transition metal compound generally represented by the formula: MR′x where M is a transition metal, R′ is a halogen or a hydrocarboxyl, and x is the valence of the transition metal. The transition metal compound can be TiCl4. The Ziegler-Natta catalyst may comprise an internal electron donor, such as phthalate. The catalyst system further includes an external electron donor selected from the group consisting of diethers and a co-catalyst selected from the group of organoaluminum compounds. In one embodiment, the external electron donor is 2,2-diisobutyl-1,3-dimethoxypropane, and the co-catalyst is triethylaluminum.
    Type: Grant
    Filed: January 1, 2003
    Date of Patent: November 16, 2004
    Assignee: Fina Technology, Inc.
    Inventor: Christopher G. Bauch
  • Patent number: 6818584
    Abstract: Especially homogeneous supported Ziegler-Natta catalysts may be prepared in a simple one reaction vessel process from a magnesium hydrocarbyloxy starting material which is soluble in a hydrocarbon solvent. The process comprises: (I) reacting a magnesium hydrocarbyloxy compound with a chlorine-containing compound in a non-polar hydrocarbon solvent in which said magnesium hydrocarbyloxy compound is soluble whereby to produce a solution (A); and then either: (II) contacting the solution (A) with a chlorine containing tetravalent titanium compound to produce a solution (B); (III) impregnating solution (B) into a porous particulate support; or (II) impregnating solution (A) into a porous particulate support; and (III) contacting the solid support with a chlorine containing tetravalent titanium compound; or (II) impregnating solution (A) into a porous particulate support pretreated with a chlorine containing tetravalent titanium compound.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: November 16, 2004
    Assignee: Borealis Technology OY
    Inventors: Thomas Garoff, Solveig Johansson, Paivi Waldvogel
  • Patent number: 6806221
    Abstract: A method of making a spray-dried composition using a solution or mixture comprising the reaction product of a magnesium halide, a solvent, an electron donor compound, and a transition metal compound and an inert filler comprising substantially spherical particles having an average particle size ranging from 1 &mgr;m to about 12 &mgr;m.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: October 19, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Burkhard Eric Wagner, Robert James Jorgensen, Mark Wilton Smale
  • Patent number: 6803427
    Abstract: The present invention relates to a method for producing a polymer and copolymer of ethylene, and more particularly to a method for producing an ethylene polymer and copolymer by reacting a compound of an organic metal of Group 2, 12, or 13 on the periodic table of elements with an alkoxy silane compound in the presence of a titanium catalyst, the said titanium catalyst being produced by a process of preparing a magnesium compound by contact-reacting a halogenated magnesium compound and alcohol, of reacting the said solution with an ester compound which contains at least one hydroxy group and a silicon compound containing an alkoxy group, and also of reacting it with a solid matter obtained by reaction of a mixture of a titanium compound and a silicon compound with a titanium compound.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: October 12, 2004
    Assignee: Samsung General Chemicals Co., Ltd.
    Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
  • Patent number: 6803428
    Abstract: A process is provided for preparing a catalyst support for polymerizing &agr;-olefins comprising the steps of: (i) reacting, in the presence of a first electron donor, a chlorine-containing organic compound and a prior mixture of an alkylmagnesien and an aluminoxane and/or aluminosiloxane and/or alkylaluminum and, optionally, a second electron donor; and (ii) activating a product from step (i) in suspension in an inert liquid by means of an activation electron donor, together with the support thus obtained, a catalyst for polymerizing &agr;-olefins, comprising this catalyst support and a group IV transition metal halide, and a process for polymerizing &agr;-olefins, particularly propylene, comprising contacting the &agr;-olefin with the catalyst.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: October 12, 2004
    Assignee: Atofina
    Inventors: Thierry Saudemont, Jean Malinge, Jean-Loup Lacombe, Daniel Cochard, Henri Violle
  • Publication number: 20040198931
    Abstract: The invention relates to a magnesium compound effective in producing olefin polymers having an increased bulk density and a narrowed particle size distribution, not lowering the stereospecificity of the polymers produced and not lowering the polymerization activity in producing the polymers, to an olefin polymerization catalyst comprising the compound, and to a method for producing such olefin polymers. The olefin polymerization catalyst comprises (A) a solid catalyst component prepared by contacting a magnesium compound having a specific particle size distribution index (P), a titanium compound and an electron donor compound with each other, (B) an organometallic compound, and (C) an electron donor. The olefin polymerization method comprises polymerizing an olefin in the presence of the catalyst to give olefin polymers.
    Type: Application
    Filed: April 26, 2004
    Publication date: October 7, 2004
    Applicant: IDEMITSU PETROCHEMICAL CO., LTD.
    Inventors: Shohjiroh Tanase, Takehiro Tsuda, Tsuyoshi Ota, Hideo Funabashi
  • Publication number: 20040198589
    Abstract: The invention relates to a magnesium compound effective in producing olefin polymers having an increased bulk density and a narrowed particle size distribution, not lowering the stereospecificity of the polymers produced and not lowering the polymerization activity in producing the polymers, to an olefin polymerization catalyst comprising the compound, and to a method for producing such olefin polymers. The olefin polymerization catalyst comprises (A) a solid catalyst component prepared by contacting a magnesium compound having a specific particle size distribution index (P), a titanium compound and an electron donor compound with each other, (B) an organometallic compound, and (C) an electron donor. The olefin polymerization method comprises polymerizing an olefin in the presence of the catalyst to give olefin polymers.
    Type: Application
    Filed: April 26, 2004
    Publication date: October 7, 2004
    Applicant: IDEMITSU PETROCHEMICAL CO., LTD.
    Inventors: Shohjiroh Tanase, Takehiro Tsuda, Tsuyoshi Ota, Hideo Funabashi
  • Patent number: 6800702
    Abstract: A process for the trimerisation of olefins is disclosed, comprising contacting a monomeric olefin or mixture of olefins under trimerisation conditions with a catalyst which comprises (a) a source of chromium, molybdenum or tungsten (b) a ligand containing at least one phosphorus, arsenic or antimony atom bound to at least one hydrocarbyl or heterohydrocarbyl group having a polar substituent, but excluding the case where all such polar substituents are phosphane, arsane or stibana groups; and optionally (c) an activator.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: October 5, 2004
    Assignee: BP Chemicals Limited
    Inventor: Duncan Frank Wass
  • Patent number: 6800703
    Abstract: A method for producing propylene polymers having a broad molecular weight distribution (MWD) is disclosed. The method uses a Ziegler catalyst and one silane donor. The silane donor is selected from vinyltrimethoxysilane or dicyclohexyldimethoxysilane. The polymers made by the method have an MWD greater than or equal to 7.0.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: October 5, 2004
    Assignee: Equistar Chemicals, LP
    Inventors: Mark K. Reinking, Douglas D. Klendworth
  • Patent number: 6799568
    Abstract: The invention is directed to a process for the preparation of a catalyst component for the polymerization of an olefin by: a) contacting metallic magnesium with an organic halide RX, where R is an organic group containing up to 20 carbon atoms and X is a halide, whereupon the dissolved reaction product I is separated from the solid residual products and whereafter, b) an alkoxy group or aryloxy group containing silane compound is added to the obtained reaction product I, whereupon the precipitate formed is purified to obtain reaction product II, c) which reaction product II is subsequently contacted with TiCl4 and the resulting product is purified to obtain the catalyst component. The invention is characterized in that in step b) the silane compound and reaction product I are introduced simultaneously to a mixing device.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: October 5, 2004
    Assignee: DSM N.V.
    Inventors: Vladimir A. Zakharov, Gennady D. Bukatov, Sergei A. Sergeev
  • Patent number: 6800710
    Abstract: Polypropylene sheet for thermoforming having at least one layer comprises a propylene polymer containing at least 0.8% by weight of ethylene and, optionally, one or more C4-C10 &agr;-olefins, or a propylene polymer composition containing at least 0.8% by weight of one or more comonomers selected from the group consisting of ethylene and C4-C10 &agr;-olefins, and having I) a melting temperature of 155° C. or higher; and II) a xylene soluble fraction at room temperature lower than 4% by weight, and a value of the ratio of the polymer fraction collected at 25° C. to 95° C. to the xylene soluble fraction higher than 8.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: October 5, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Anteo Pelliconi, Angelo Lonardo, Gabriele Mei
  • Patent number: 6797794
    Abstract: Olefin polymers produced using components of catalysts obtained by contacting a Ti compound of formula Ti(OR)n-yXy, where n is the valence of titanium and y is a number between 1 and n, with a pre-polymer having a porosity higher than 0.3 cc/g and containing from 0.5 to 100 g of polymer per g of solid catalyst component, the pre-polymer being obtained by (co)polymerizing an olefin or a diolefin in the presence of a catalyst comprising a Ti, V, Zr or Hf compound supported on a Mg dihalide having a mean crystallite dimension lower than 30 nm.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: September 28, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Licio Zambon, Mario Sacchetti, Gianni Vitale
  • Publication number: 20040162401
    Abstract: A method of modifying a Ziegler-Natta type polyolefin catalyst comprises contacting the Ziegler-Natta catalyst with olefin monomer to form a prepolymerized catalyst. The prepolymerized catalyst can comprise a reduced number of catalyst particles having a size of 40 microns or less. The prepolymerized catalyst can be used in a polymerization process to produce polymer fluff particles with a reduced number of polymer fluff fines than the Ziegler-Natta type catalyst.
    Type: Application
    Filed: February 18, 2003
    Publication date: August 19, 2004
    Inventors: Steven D. Gray, Tim J. Coffy, Edwar S. Shamshoum, Hong Chen
  • Patent number: 6777508
    Abstract: Disclosed are catalysts for the polymerization of alpha-olefins which comprise the reaction product of: (a) an Al-alkyl compound; (b) a silicon compound containing at least one Si—OR or Si—OCOR or Si—NR2 bond, R being a hydrocarbyl radical; (c) a solid comprising, as essential support, a Mg dihalide in active form and, supported thereon, a Ti halide or a halo-Ti-alcoholate and a particular type of electron donor compound. The present invention refers to new supported components of catalysts for the polymerization of CH2═CHR olefins wherein R is an alkyl radical with 1 to 4 carbon atoms, or an aryl radical, and mixtures of said olefins with ethylene and the catalysts obtained from said components.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: August 17, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Sandro Parodi, Roberto Nocci, Umberto Giannini, Pier Camillo Barbe′, Umberto Scata′