Ester Patents (Class 502/127)
  • Patent number: 6566464
    Abstract: There are disclosed a process for producing a solid catalyst component and a catalyst for &agr;-olefin polymerization, and a process for producing an &agr;-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 at least one member selected from the group consisting of an electron donor compound (E1) 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: May 20, 2003
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yasuki Fujiwara, Makoto Satoh
  • Patent number: 6559249
    Abstract: The present invention provides a catalyst for producing an ultra high molecular weight polyethylene and also a method for preparation of an ultra high molecular weight polyethylene with the use of said catalyst. The catalyst of the present invention is prepared by a process comprising: (i) producing a magnesium compound solution by contact-reacting a magnesium compound and an aluminum or boron compound with alcohol; (ii) contact-reacting the said solution with an ester compound containing at least one hydroxy group and a silicon compound containing an alkoxy group; and (iii) producing of a solid titanium catalyst by adding a mixture of a titanium compound and a silicon compound thereto. The catalyst prepared by the present invention has excellent catalytic activity, and it helps to produce an ultra-high molecular weight polyethylene with large bulk density and narrow particle distribution without too large and minute particles.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: May 6, 2003
    Assignee: Samsung General Chemicals Co. Ltd.
    Inventors: Chun-Byoung Yang, Ho-Sik Chang, Weon Lee
  • Publication number: 20030069372
    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: Application
    Filed: October 9, 2001
    Publication date: April 10, 2003
    Applicant: Formosa Plastics Corporation, U.S.A.
    Inventors: Bing Lu, Honglan Lu, Chih-Jian Chen
  • Patent number: 6544920
    Abstract: Solid catalyst component for the polymerization of olefins, includes the product of the direct reaction, with no subsequent reactions with reducing organometallic compounds, between a titanium compound and a support obtained by contacting a metal oxide containing hydroxyl groups with a solution containing A) a magnesium chloride; B) from 1 to 6 moles of an alcohol per mole of magnesium chloride, in a halogenated hydrocarbon or aromatic hydrocarbon organic solvent C) capable of bringing the magnesium chloride in solution in quantities greater than or equal to 5 grams per liter in the presence of the above-mentioned quantities of alcohol B), the solvent not being able to form adducts with the magnesium chloride.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: April 8, 2003
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Gianni Pennini, Arrigo Arletti, Giampiero Morini
  • Patent number: 6544921
    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: September 13, 2000
    Date of Patent: April 8, 2003
    Assignee: Sumitomo Chemical Comapny, Limited
    Inventors: Tatsuya Miyatake, Masaaki Nabika, Seiki Kiuchi
  • Publication number: 20030065111
    Abstract: There is provided a process for producing a catalyst for olefin polymerization, which comprises the step of contacting (1) an organoaluminum compound, (2) an external electron donor compound and (3) a solid catalyst component obtained by a process comprising the steps of;
    Type: Application
    Filed: July 31, 2002
    Publication date: April 3, 2003
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ken Yoshimura, Shin-Ichi Kumamoto, Makoto Satoh
  • Publication number: 20030064882
    Abstract: A method of making a solid procatalyst composition for use in a Ziegler-Natta olefin polymerization catalyst composition, said method comprising:
    Type: Application
    Filed: May 1, 2002
    Publication date: April 3, 2003
    Inventors: Peter A. Kilty, Thomas R. Cuthbert
  • Patent number: 6541411
    Abstract: The invention relates to novel titanium/zirconium catalysts, and to a process for the preparation of these titanium/zirconium catalysts. The process comprises reacting orthoesters or condensed orthoesters of titanium and/or zirconium, with one or more polyalcohols. Suitable polyalcohols comprise those compounds having at least two hydroxyl groups and a number average molecular weight of at least 180 g/mol. The invention also relates to a process for preparing (poly)esters from these novel catalysts, which exhibit little discoloration and are suitable to be used as a reaction component in the preparation of polyurethane (PUR) foams.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: April 1, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Hoffmann, Hartmut Nefzger, Erika Bauer
  • Patent number: 6541582
    Abstract: A solid catalyst component for the polymerization of olefins CH2═CHR, in which R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, the solid catalyst component including Mg, Ti, halogen and an electron donor selected from &bgr;-substituted glutarates other than diisopropyl &bgr;-methyl glutarate and which are not alpha-substituted. The catalyst component, when used in the polymerization of olefins, and in particular polypropylene, is capable of providing polymers in high yield and with a high isotactic index expressed in terms of high xylene insolubility.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: April 1, 2003
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin
  • Publication number: 20030060581
    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: Application
    Filed: June 10, 2002
    Publication date: March 27, 2003
    Inventors: Giampiero Morini, Giulio Balbontin
  • Patent number: 6538078
    Abstract: The present invention relates to a highly active titanium based supported catalyst suitable for olefin (co)polymerization, preparation and use of the same. The catalyst according to the present invention is obtained by supporting a titanium based catalyst component containing a halide promoter on spherical silica. The resultant catalyst is excellent in its particle morphology and flowability, has highly catalytic activity, has excellent hydrogen response and has superior comonomer incorporation, the polymer prepared by using such a catalyst has its particle morphology further improved.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: March 25, 2003
    Assignees: China Petro-Chemical Corporation, Beijing Research Institute of Chemical Industry Sinopec
    Inventors: Hekuan Luo, Ruiguo Tang, Hua Yang, Qinfang Zhao
  • Patent number: 6538079
    Abstract: There are disclosed: (1) a process for producing a catalyst for ethylene polymerization, which comprises the step of contacting with one another: (i) a solid catalyst component containing at least titanium, magnesium and halogen atoms; (ii) an organoaluminum compound; and (iii) a heterocyclic compound; and (2) a process for producing an ethylene polymer, which comprises the step of polymerizing ethylene, or ethylene and at least one kind of an addition polymerizable comonomer other than ethylene, in the presence of the above-mentioned catalyst.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: March 25, 2003
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shin-ichi Kumamoto, Makoto Satoh
  • Patent number: 6534606
    Abstract: Described are catalyst systems having aluminium alkyl complexes of the formula (I) described herein applied to magnesium chloride, SiO2 or SiO2 in combination with MgCl2 as support in the presence of titanium halides or vanadium halides and internal and, if desired, external donors act both as cocatalysts and as stereoselectivity promoters in heterogeneous polymerizations of &agr;-olefins. Also described are polymerization methods using these catalyst systems.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: March 18, 2003
    Assignee: Merck Patent Gesellschaft Mit Beschränkter Haftung
    Inventors: Katrin Köhler, Eike Poetsch, Herbert Schumann, Sebastian Dechert, Walter Kaminsky, Andre Laban, Manfred Arnold, Jana Knorr, Birgit Corinna Wassermann
  • Publication number: 20030032551
    Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with an ester compound having at least one hydroxyl group and a silicon compound having an alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst through recrystallization by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound. The solid titanium complex catalyst for polymerization and copolymerization of ethylene according to present invention exhibits high catalytic activity, high hydrogen reactivity and controlled particle size, and can advantageously used in the polymerization and copolymerization of ethylene to produce polymers of high bulk density.
    Type: Application
    Filed: June 12, 2002
    Publication date: February 13, 2003
    Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
  • Publication number: 20030027715
    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: Application
    Filed: April 15, 2002
    Publication date: February 6, 2003
    Inventors: Masaki Fushimi, Hirotoshi Takahashi
  • Patent number: 6515085
    Abstract: Catalyst-forming components and catalysts for the polymerization of olefins based on said components are disclosed. The catalysts comprise the reaction product of: (a) an Al alkyl compound; (b) a silicon compound containing at least a Si—OR or Si—OCOR or Si—NR2 bond, R being a hydrocarbyl radical; and (c) a solid comprising, as essential support, a Mg dihalide in active form and, supported thereon, a Ti halide or a halo-Ti-alcoholate or said halogenated Ti compound and a silicon compound as defined in (b) in a molar ratio with the supported Ti compound from 1.0 mole to 5 moles of silicon compound per mole of Ti 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 to the catalysts obtained from said components.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: February 4, 2003
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Sandro Parodi, Roberto Nocci, Umberto Giannini, Pier Camillo Barbe', Umberto Scata'
  • Publication number: 20030022786
    Abstract: A polypropylene catalyst (no more than 2 wt % titanium) contains at least one titanium-halogen bond-containing compound, internal donor, and activated, amorphous magnesium dihalide support, essentially free of alkoxy functionality.
    Type: Application
    Filed: May 3, 2001
    Publication date: January 30, 2003
    Inventors: Ronald A. Epstein, William T. Wallack
  • Patent number: 6503993
    Abstract: The present invention concerns nucleated propylene polymers having a xylene soluble fraction at 23° C. of less than 2.5%, a crystallization temperature of over 124 ° C. and a tensile modulus of greater than 2,000 MPa. These polymers can be prepared by nucleating a propylene polymer with a polymeric nucleating agent containing vinyl compound units, and by polymerizing propylene optionally with comonomers in the presence of a Ziegler-Natta catalyst system primarily transesterified with a phthalic acid ester—a lower alcohol pair to provide said propylene polymer. The catalyst contains a strongly coordinating external donor.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: January 7, 2003
    Assignee: Borealis Technology Oy
    Inventors: Päivi Huovinen, Pirjo J{umlaut over (aa)}skeläinen, Amir Karbasi, Christer Lind, Bo Malm, John Haugen
  • Patent number: 6495639
    Abstract: Provided are a solid catalyst component for olefin polymerization and a catalyst comprising the component for olefin polymerization, in which the electron donor is free from the problem of lacking in safety and sanitation, and is inexpensive and easy to produce, and which exhibit high activity in producing olefin polymers with high stereospecificity, and also a method for producing olefin polymers in the presence of the catalyst. The solid catalyst component comprises titanium, magnesium and an electron donor compound of formula (I): wherein R1 and R2 each represent a linear or branched hydrocarbon residue having from 1 to 20 carbon atoms; R3 represents an alicyclic hydrocarbon residue having from 3 to 20 carbon atoms; and n represents an integer of from 1 to 10. The solid catalyst component is combined with an organic aluminium compound to prepare a catalyst, which is used in producing olefin polymers.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: December 17, 2002
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Yasunori Kadoi, Tsuyoshi Ota, Toshio Isozaki, Kiyokazu Katayama, Takanori Sadashima
  • Publication number: 20020183194
    Abstract: A lower &agr;-alkene polymerisation 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. The internal electron donor ester component of the precursor is generated insitu by reaction of a magnesium chloride alcoholate with an activated carbonyl compound in the mole ratio 0.5-1:10-20. The magnesium chloride alcoholate is formed of hydrated magnesium chloride and an aliphatic alcohol in the mole ratio of 0.5-1:10-20. The mole ratio of the aluminium to the titanium is 10-300:1 and that of the selectivity control agent to titanium is 10-100:1. The process for the preparation of the catalyst comprises mixing a hydrated magnesium chloride derived procatalyst, a cocatalyst and a selectivity control agent.
    Type: Application
    Filed: April 5, 2002
    Publication date: December 5, 2002
    Inventors: Sumit Bhaduri, Virenda Kumar Gupta
  • Patent number: 6482765
    Abstract: Modified particles obtained by contacting dry particles(a) with an organometallic compound(b), and subsequently a compound(c) having a functional group containing active hydrogen or a non-proton donative Lewis basic functional group and an electron attractive group; a carrier comprising said particles; a catalyst component for olefin polymerization comprising said particles; a catalyst for olefin polymerization comprising said particles(A) and a transition metal compound(B), or an additional organometallic compound (C) therewith; and a method for producing an olefin polymer with said catalyst for olefin polymerization. According to the present invention, there is provided a catalyst for polymerizing an olefin giving an olefin polymer excellent in particle properties with a high activity when applied to a slurry polymerization or gas phase polymerization, and a method for producing a olefin polymer using said catalyst.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: November 19, 2002
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takuya Ohgane, Hideki Sato, Hiroaki Katayama
  • Publication number: 20020169070
    Abstract: A process for the production of a magnesium chloride powder for use in a catalyst, the process comprising vaporising magnesium chloride in a plasma torch and quenching the vapour with a liquid containing an electron donor to form a magnesium chloride-based powder catalyst wherein at least 80% by weight of the magnesium chloride is present as the hexagonal phase thereof. The invention also relates to a precursor for such a catalyst.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 14, 2002
    Inventors: Guy Debras, Alain Standaert, Hendrik D'Haese
  • Patent number: 6444603
    Abstract: The invention relates to a catalyst component which can provide, in combination with a transition metal compound, a catalyst for ethylenically unsaturated monomer polymerization, a catalyst comprising the catalyst component and a transition metal compound, and a process for ethylenically unsaturated monomer polymerization using the catalyst. The catalyst component comprises a compound obtained by the reaction of, in any order, (i) a compound comprising a metal of Group 13 of the periodic table; (ii) a compound capable of reacting with the compound (i) to be bonded to two or more of the Group 13 metal; (iii) a compound capable of reacting the compound (i); and optionally (iv) a hydrocarbon compound or the like.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: September 3, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yasushi Tohi, Haruyuki Makio, Terunori Fujita, Toshiyuki Tsutsui
  • Patent number: 6437061
    Abstract: The present invention relates to MgCl2.mROH.nH2O adducts, where R is a C1-C10 alkyl, 2≦m≦4.2, 0≦n≦0.7 , characterized by an X-ray diffraction spectrum in which, in the range of 2&thgr; diffraction angles between 5° and 15°, the three main diffraction lines are present at diffraction angles 2&thgr; of 8.8±0.2°, 9.4±0.2° and 9.8±0.2°, the most intense diffraction lines being the one at 2&thgr;=8.8±0.2°, the intensity of the other two diffraction lines being at least 0.2 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 stereospecificity.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: August 20, 2002
    Assignee: Basell Technology Company BV
    Inventors: Mario Sacchetti, Gabriele Govoni, Anna Fait
  • Patent number: 6436863
    Abstract: A catalyst composition and process for preparing such catalyst composition which can be useful in contacting a hydrocarbon-containing fluid which contains a highly unsaturated hydrocarbon such as 1,3-butadiene, in the presence of hydrogen, with such catalyst composition in a hydrogenation zone under a hydrogenation condition effective to hydrogenate such highly unsaturated hydrocarbon to a less unsaturated hydrocarbon such as n-butene is disclosed. Such process for preparing a catalyst composition includes (1) combining a zeolite, a Group VIB metal, and an inorganic support to form a modified zeolite; (2) calcining such modified zeolite under a calcining condition to produce a calcined, modified zeolite; and (3) contacting such calcined, modified zeolite with a carburizing agent under a carburizing condition to provide such catalyst composition.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: August 20, 2002
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Publication number: 20020107143
    Abstract: The invention relates to novel titanium/zirconium catalysts, and to a process for the preparation of these titanium/zirconium catalysts. The process comprises reacting orthoesters or condensed orthoesters of titanium and/or zirconium, with one or more polyalcohols. Suitable polyalcohols comprise those compounds having at least two hydroxyl groups and a number average molecular weight of at least 180 g/mol. The invention also relates to a process for preparing (poly)esters from these novel catalysts, which exhibit little discoloration and are suitable to be used as a reaction component in the preparation of polyurethane (PUR) foams.
    Type: Application
    Filed: November 27, 2001
    Publication date: August 8, 2002
    Inventors: Andreas Hoffmann, Hartmut Nefzger, Erika Bauer
  • Patent number: 6410663
    Abstract: The present invention provides a catalyst system that exhibits unexpected control of desired properties in copolymer product. The catalyst system includes a conventional supported Ziegler-Natta catalyst in combination with an electron donor described by the formula: wherein R1 is a linear alkyl group attached to the silicon atom; R2 and R3 are alkyl or aryl groups and R4 is a linear alkyl attached to the silicon atom, R1 and R4 are the same or different. R1 and R4 are preferably linear carbon groups of 4-13 carbon atoms, more preferably 4-7 carbon atoms; most preferably R1 and R4 are the same and are n-butyl groups. The system exhibits good control over the melt flow index of the copolymer products.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: June 25, 2002
    Assignee: Fina Technology, Inc.
    Inventors: Edwar S. Shamshoum, David J. Rauscher, Theodore G. Harris
  • Patent number: 6399533
    Abstract: The present invention relates to components of catalysts for the polymerization of olefins comprising a metallocene compound and a magnesium halide which have particular values of porosity and surface area. Group 4 and vanadium metallocenes are useful metallocenes and the components typically include an electron donor such as an ether, ester or ketone. In particular the components of the invention have surface area (BET) greater than about 50 m2/g, porosity (BET) greater than about 0.15 cm3/g and porosity (Hg) greater than 0.3 cm3/g, with the proviso that when the surface area is less than about 150 m2g, the porosity (Hg) is less than about 1.5 cm3/g. The magnesium halide is complexed by an ether, ester, or ketone electro donor. The components of the invention are particularly suitable for the preparation of catalysts for the gas-phase polymerization of &agr;-olefins.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: June 4, 2002
    Assignee: Basell Technology Company bv
    Inventors: Mario Sacchetti, Stefano Pasquali, Gabriele Govoni
  • Patent number: 6395667
    Abstract: The present invention relates to a solid catalyst component for &agr;-olefin polymerization having a narrow particle size distribution of not less than 6.0 in terms of the value of N in a Rosin-Rammler function of particle size distribution and giving a catalytic activity of not less than 10,000 ((g-polymer produced/g-solid catalyst component)/hour) in polymerization. According to the present invention, there can be provided a solid catalyst component for &agr;-olefin polymerization capable of giving a poly-&agr;-olefin having the high bulk density and favorable particle properties with high catalytic activity.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: May 28, 2002
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventor: Makoto Satoh
  • Patent number: 6388028
    Abstract: The present invention relates to spherical solid catalyst components for the polymerization of olefins, comprising a titanium compound, supported on a magnesium halide, containing more than one Ti-halogen link and optionally containing groups different from halogen in an amount lower than 0.5 mole per mole of Ti. Spherical solid compounds of the invention are characterized by having a surface area, measured by the BET method, of lower than 70 m2/g, a total porosity, measured by the mercurium method, higher than 0.5 cm3/g and a pore radius such that at least 50% have values higher than 800 Å.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: May 14, 2002
    Assignee: Basell Technology Company bv
    Inventors: Mario Sacchetti, Illaro Cuffiani, Gianni Pennini
  • Patent number: 6376417
    Abstract: A catalyst for the polymerization of propylene comprising components (A), (B) and (C) is provided. Component (A) is a solid product prepared by dissolving a halide of magnesium in a solvent system consisting of an organic epoxy compound, an organic phosphorus compound and an inert diluent to form a homogeneous solution; mixing the homogeneous solution with a halide of titanium to form a mixture; precipitating a solid from the mixture in the presence of an auxiliary precipitant; treating the solid with a polycarboxylic ester to load the ester on the solid; and treating the ester loaded solid with the halide of titanium and the inert diluent. Component (B) is an organic aluminium compound, and component (C) is an organic silicon compound. The particle size of the catalyst can be adjusted by increasing the amount of the inert diluent at a low ratio of the epoxy compound to the phosphorus compound.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: April 23, 2002
    Assignees: China Petro Chemical Corp., Beijing Research Institute of Chemical Industry
    Inventors: Aichun Yang, Zhulan Li, Yun Zhao, Wenbo Song, Juziu Yang, Bingquan Mao, Huiru Yang
  • Publication number: 20020037980
    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 II or m 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: Application
    Filed: May 25, 2001
    Publication date: March 28, 2002
    Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
  • Publication number: 20020016255
    Abstract: A mixed metal-containing precursor is disclosed whereby the precursor includes: a) MgZrMx where M is selected from one or more metals having a +3 or +4 oxidation state, x is from 0 to about 2, and where the molar ratio of magnesium to the mixture of zirconium and M is within the range of from about 2.5 to 3.6; and b) at least one moiety complexed with component a) selected from the group consisting of alkoxide groups, phenoxide groups, halides, hydroxy groups, carboxylate groups, amide groups, and mixtures thereof A polymerization procatalyst prepared from the mixed metal containing precursor, methods of making the precursor and procatalyst, as well as polymerization methods using the procatalyst also are disclosed.
    Type: Application
    Filed: July 17, 2001
    Publication date: February 7, 2002
    Inventor: Robert Charles Job
  • Publication number: 20020010081
    Abstract: The present invention relates to a catalyst component for the (co)polymerization of olefins comprising titanium, magnesium, halogen and a mixed electron-donor and a catalyst for the (co)polymerization of olefins comprisin: (A) the catalyst component; (B) an organic aluminum compound; and (C) an organic silicon compound. The polymer with high and adjustable stereospecificity and broad molecular weight distribution can be prepared by using the catalyst.
    Type: Application
    Filed: December 6, 2000
    Publication date: January 24, 2002
    Inventors: Zhulan Li, Juxiu Yang, Mingzhi Gao, Yun Zhao, Bingquan Mao, Aichun Yang, Chunmin Ding, Wenbo Song, Kunzheng Liu
  • Patent number: 6339136
    Abstract: A process for homo or copolymerizing propylene, wherein propylene is polymerized in the presence of a catalyst at an elevated temperature in a reaction medium, in which a major part is formed by propylene. The polymerization is carried in at least one slurry reactor in the presence of liquid propylene at a temperature between 80° C. and the critical temperature of the reaction medium and a catalyst system producing within said temperature range a high productivity and essentially constant isotacticity within wide melt index range.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: January 15, 2002
    Assignee: Borealis A/S
    Inventors: Sirpa Ala Huikku, Thomas Garoff, Timo Leinonen, Ali Harlin, Fred Bergmann
  • Patent number: 6337377
    Abstract: A process for producing an olefin polymer using a catalyst in which (A) is a solid catalyst component which includes magnesium, titanium, halogen and an electron donative compound as essential constituents; (B) is an organoaluminum component; and (C) is at least two electron donative compounds (&agr;) and (&bgr;), wherein the pentad stereoregularity of a xylene insoluble fraction of a homopolyproylene is 0<mmrr/mmmm≦0.0068 when electron donative compound (&agr;) is used in combination with (A) and (B), and the pentad stereoregularity of a xylene insoluble fraction homoproplyene of a is 0.0068<mmrr/mmmm ≦0.0320 when electron donative compound (&bgr;) is used in combination with (A) and (B). A polypropylene produced in the process can be used to obtain a biaxially oriented film. (A) and (B). A polypropylene produced in the process can be used to obtain a biaxially oriented film.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: January 8, 2002
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Takeshi Ebara, Koji Mizunuma, Toshio Sasaki, Kazuki Wakamatsu, Junichi Kimura, Yoichi Obata
  • Patent number: 6331501
    Abstract: A catalyst for &agr;-olefin polymerization obtained by contacting (A) a solid catalyst component containing a titanium compound which is obtained by treating a solid product obtained by contacting an organosilicon compound having an Si—O bond, an ester compound and an organomagnesium compound, with an ether compound, titanium tetrachloride and an acyl halide, and successively treating said treated solid with an mixture of an ether compound and titanium tetrachloride, or a mixture of an ether compound, titanium tetrachloride and an ester compound, (B) an organoaluminum compound and (C) an electron-donative compound, and a process for producing an &agr;-olefin polymer with the catalyst.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: December 18, 2001
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Makoto Satoh, Yasuki Fujiwara, Akio Imai
  • Patent number: 6331620
    Abstract: Solid catalyst components for the polymerization of olefins, comprising titanium, magnesium and a compound of general formula (I), wherein R1 and R2 may be the same or different and each represents a linear or branched hydrocarbon group having 1 to 20 carbon atoms, and n is an integer of 1 to 10, as an electron donor, which are combined with organoaluminum compounds to form polymerization catalysts for the production of olefin polymers. This electron donor has no problems of safety and hygiene, and is inexpensive and easily synthesized. This compound can provide highly active and highly stereoregular solid catalyst components for the polymerization of olefins, catalysts for the polymerization of olefins, and processes for producing olefin polymers.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: December 18, 2001
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Yasunori Kadoi, Tsuyoshi Ota, Toshio Isozaki, Kiyokazu Katayama, Takanori Sadashima
  • Patent number: 6329476
    Abstract: A novel loop/slurry olefin polymerization process is provided which produces ultra high molecular weight ethylene homopolymers and ultra high molecular weight ethylene copolymers. Catalyst systems used are selected from the group consisting of inorganic oxide supported titanium-containing catalyst systems, inorganic oxide supported organo-zirconium catalyst systems and inorganic oxide supported organo-hafnium catalyst systems.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: December 11, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Joel L. Martin, Joseph J. Bergmeister, Eric T. Hsieh, Max P. McDaniel, Elizabeth A. Benham, Steven J. Secora
  • Patent number: 6323298
    Abstract: There are provided a propylene-based polymer characterized in that (1) the xylene-extraction insoluble portion (XI) is 99.0 wt % or greater, (2) the isotactic pentad ratio (IP) is 98.0% or greater as measured by 13C nuclear magnetic resonance spectroscopy, (3) the isotactic average chain length (N) is 500 or greater, and (4) the total amount of each of the fractions obtained by column separation of the xylene insolubles whose average chain length (Nf) is 800 or greater accounts for 10 wt % or more of the entirety, and a method for its production, as well as a propylene-based polymer composition prepared by combining with this propylene-based polymer at least a nucleating agent in the range of 0.05-15 wt %. In addition, there are provided a polymerization catalyst component allowing the production of such a propylene-based polymer, and a method for its production.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: November 27, 2001
    Assignee: Showa Denko K.K.
    Inventors: Hisayoshi Yanagihara, Kazuyuki Watanabe, Satoshi Iwamoto, Hirotoshi Takahashi, Kazuharu Itoh
  • Patent number: 6323293
    Abstract: Provided is a process of polymerization wherein the catalyst comprises: A) a catalyst component consisting essentially of titanium, magnesium, halogen, a polycarboxylic ester, and an organic phosphorus compound; B) electron donor described by the formula:  wherein R1 is alkyl or cycloakylgroup containing at least one secondary or tertiary carbon atom, R2 and R3 are each independently alkyl or aryl group, and R4 is an alkyl group having a primary carbon bonded to the silicon atom; and C) organic aluminum compound.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: November 27, 2001
    Assignee: Fina Technology, Inc.
    Inventors: Edwar Shoukri Shamshoum, Christopher G. Bauch, Theodore Harris, Sehyun Kim, David John Rauscher
  • Patent number: 6313238
    Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, comprising a titanium compound, having at least a Ti-halogen bond and an electron donor compound supported on a Mg halide, in which said electron donor compound is selected from esters of malonic acids of formula (I): wherein R1 is a C5-C20 linear or branched alkyl, a C5-C20 cycloalkyl, a C7-C20 arylalkyl or alkylaryl group; R2 and R3, equal to or different from each other, are C1-C3 alkyl, cycloalkyl. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give high yields and polymers having high insolubility in xylene.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: November 6, 2001
    Assignee: Basell Technology Company bv
    Inventors: Giampiero Morini, Giulio Balbontin, John Chadwick, Antonio Cristofori, Enrico Albizzati
  • Patent number: 6303532
    Abstract: In the invention a catalyst composition intended for the polymerization of olefins has been provided, which has been prepared by bringing together magnesium chloride, a lower alcohol, a titanium compound and an ester of phthalic acid. The procatalyst composition is active and stereospecific and it simultaneously has a titanium and phthalic acid content as low as possible. These good properties have been achieved by carrying out a transesterification between the lower alcohol and the ester of the phthalic acid, whereby the alkoxy group of the phthalic acid comprises at least five carbon atoms.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: October 16, 2001
    Assignee: Borealis Technology Oy
    Inventors: Thomas Garoff, Timo Leinonen, Eero Iiskola
  • Patent number: 6294497
    Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, comprising a titanium compound, having at least a Ti-halogen bond and an electron donor compound supported on a Mg halide, in which said electron donor compound is selected from esters of malonic acids of formula (I): wherein R1 is H or a C1-C20 linear or branched alkyl, alkenyl, cycloalkyl, aryl, arylalkyl or alkylaryl group; R2 is a C1-C20 linear or branched alkyl, alkenyl, cycloalkyl, aryl, arylalkyl or alkylaryl group; R3 and R4 the same or different are C4-C20 linear or branched alkyl, alkylcycloalkyl, primary arylalkyl or primary alkylaryl. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give high yields and polymers having high insolubility in xylene.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: September 25, 2001
    Assignee: Montell Technology Company bv
    Inventors: Giampiero Morini, Giulio Balbontin, John Chadwick, Antonio Cristofori, Enrico Albizzati
  • Patent number: 6291385
    Abstract: The present invention relates to a catalyst for polymerization or copolymerization of an olefin. The catalyst is produced by first reacting a mixture of a magnesium compound and an aluminum compound with an ester compound which has at least one hydroxy group and a silane compound which has at least one alkoxy group, and next reacting with a titanium compound. The catalyst may be used in the polymerization or copolymerization of ethylene and propylene.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: September 18, 2001
    Assignee: Samsung General Chemicals Co., Ltd.
    Inventors: Young-Sub Lee, Youn-Kyung Kang
  • Publication number: 20010021687
    Abstract: A solid catalyst component for olefin polymerization obtained by contacting a titanium compound having a titanium-halogen bond and an ester compound simultaneously, or a mixture of a titanium compound (A) having a titanium-halogen bond and an ester compound (B), with a solid catalyst component precursor (C) containing a magnesium atom, a titanium atom and a hydrocarbyloxy group.
    Type: Application
    Filed: May 10, 2001
    Publication date: September 13, 2001
    Inventors: Shin-Ichi Kumamoto, Eiji Nakaishi, Makato Satoh
  • Patent number: 6281301
    Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, comprising a titanium compound, having at least a Ti-halogen bond and an electron donor compound supported on a Mg halide, in which said electron donor compound is selected from esters of malonic acids of formula (I): wherein R1 is a C1-C20 linear or branched alkyl, C3-C20 alkenyl, C3-C20 cycloalkyl, C6-C20 aryl, arylalkyl or alkylaryl group; R2 is a C1-C20 linear alkyl, C3-C20 linear alkenyl, C6-C20 aryl, arylalkyl or alkylaryl group; R3 and R4 are independently selected from the group consisting of C1-C3 alky, cyclopropyl, with the proviso that when R1 is C1-C4 linear or branched alkyl or alkenyl, R2 is different from R1. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give high yields and polymers having high insolubility in xylene.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: August 28, 2001
    Assignee: Montell Technology Company bv
    Inventors: Giampiero Morini, Giulio Balbontin, John Chadwick, Antonio Cristofori, Enrico Albizzati
  • Patent number: 6268306
    Abstract: A polymerization catalyst obtained by contacting metallic magnesium with an aromatic halide, RX, under conditions effective to obtain a first reaction product and solid residual products is disclosed. The first reaction product is then separated from the solid residual products. A silane compound containing an alkoxy or aryloxy group is added to the first reaction product between −20° C. to 20° C. to obtain a precipitate which is purified to obtain a second reaction product. Subsequently, the second reaction product is contacted with a halogenized titanium compound, such as, titanium tetrachloride, to obtain a further reaction product. The polymerization catalyst is obtained by purifying the further reaction product. In the aromatic halide, R represents an aromatic group containing from 6 to 20 carbon atoms and X represents a halide. An electron dopor such as dibutyl phthalate may also be present during the titanium addition.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: July 31, 2001
    Assignee: DSM N.V.
    Inventors: Vladimir A Zakharov, Gennadii D. Bukatov, Sergei A. Sergeev
  • Publication number: 20010008869
    Abstract: The invention relates to a new process for the preparation of an olefin polymerization catalyst component, as well as a new polymerization catalyst component and its use. In the process, a magnesium dialkyl or diahlide or alkyl alkoxide is reacted with an alcohol and the reaction product is reacted with an unsaturated dicarboxylic acid dihalide and a titanium tetrahalide. Especially good catalyst activity and morphology are achieved by using a polyhydric alcohol such as ethylene glycol.
    Type: Application
    Filed: February 1, 2001
    Publication date: July 19, 2001
    Inventors: Thomas Garoff, Timo Leinonen, Sirpa Ala-Huikku
  • Patent number: 6235854
    Abstract: The invention provides a process for preparing a solid titanium catalyst component for use in the preparation of an olefin polymerization catalyst, which comprises: (1) a step wherein a suspension is prepared which contains a solid material prepared by contacting a magnesium compound with a first titanium compound and having a polybasic carboxylic acid ester supported thereon; (2) a step wherein the solid material is separated from the suspension; and (3) a step wherein the solid material is contacted with a second titanium compound under heating; wherein while the solid material is separated from the suspension in the step (2) and the solid material is supplied to the step (3), the solid material is maintained at a temperature in the range of 70-130° C.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: May 22, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Mamoru Kioka, Shinichi Kojo, Tsuneo Yashiki