Ester Patents (Class 502/127)
  • Patent number: 6881696
    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 boron compound having at least one 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.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: April 19, 2005
    Assignee: Samsung General Chemicals Co., Ltd.
    Inventors: Chun-Byung Yang, Ji-Yong Park, Yong-Bok Lee, Weon Lee
  • Patent number: 6878659
    Abstract: A solid catalyst component for olefin polymerization characterized by being formed from (a) a magnesium compound, (b) titanium tetrachloride, (c) a phthalic diester and a derivative thereof, and either (d1) a hydroxylated hydrocarbon compound (phenol, etc.) represented by a specific formula or (d2) a mercapto-containing hydrocarbon compound (thiophenol, etc.) represented by a specific formula. With a catalyst obtained from this solid catalyst component, an olefin polymer can be obtained in extremely high yield. In particular, a propylene polymer which retains high stereoregularity can be obtained in extremely high yield.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: April 12, 2005
    Assignee: Toho Titanium Co., Ltd.
    Inventors: Kunihiko Tashino, Isa Nishiyama, Takuma Yoshida, Yukihiro Suzuki, Hayashi Ogawa, Maki Sato
  • 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: 6849700
    Abstract: The invention relates to a process for the preparation of an olefin polymerisation catalyst component, said catalyst component and its use. The process is mainly characterized by the steps of (i) reacting in solution a magnesium compound containing an alkoxy group, a carboxylic acid halide and a four-valent titanium compound containing a halogen, for obtaining a dissolved reaction product and (ii) recovering a fraction of the reaction product from step (i) in particulate form by contacting the dissolved reaction product with a mixture of an aromatic and an aliphatic hydrocarbon, or by contacting the dissolved reaction product first with an aromatic hydrocarbon and then with an aliphatic hydrocarbon, the amount of aromatic and aliphatic hydrocarbon being at least 5 mol per mol of magnesium.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: February 1, 2005
    Assignee: Borealis Technology Oy
    Inventors: Thomas Garoff, Timo Leinonen
  • 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
  • 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: 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
  • Publication number: 20040266610
    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&thgr; diffraction angles between 5° and 10°, at least two diffraction lines are present at diffraction angles 2&thgr; of 9.3±0.2°, and 9.9±0.2°, the most intense diffraction lines being the one at 2&thgr; 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: Application
    Filed: May 17, 2004
    Publication date: December 30, 2004
    Inventors: Daniel Evangelisti, Gianni Collina, Ofelia Fusco, Mario Sacchetti
  • 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
  • Patent number: 6831033
    Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process that includes: (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 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.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: December 14, 2004
    Assignee: Samsung General Chemicals Co., Ltd.
    Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
  • 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
  • Publication number: 20040242409
    Abstract: The present invention relates to a catalyst for homo-polymerization or co-polymerization of ethylene, or more particularly to a solid complex titanium catalyst for homo-polymerization or co-polymerization of ethylene. The catalyst may be produced by preparing a magnesium solution by contact-reacting a magnesium halide compound with an alcohol. Reacting the solution with an ester compound and a boron compound. Then reacting the solution with a mixture of a titanium compound and a silicon compound.
    Type: Application
    Filed: July 7, 2004
    Publication date: December 2, 2004
    Applicant: Samsung General Chemicals Co., Ltd.
    Inventors: Chun Byung Yang, Sang Yull Kim, Ho Yeoun Kim, Eun Ha Kim
  • 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
  • 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
  • Publication number: 20040229748
    Abstract: The present invention is to provide a composite carrier, which is spheric particles obtainable by contacting magnesium halide with one or more electron donor compounds to form a solution, then mixing the solution with silica material having an average particle size of less than 10 microns to form a mixture, and drying the mixture through spray drying process. The present invention is also to provide a catalyst component comprising said composite carrier. When the catalyst component is used together with a cocatalyst component in propylene polymerization, it exhibits higher polymerization activity and stereospecificity, and can be used to prepare high impact resistant ethylene-propylene copolymer having high ethylene content.
    Type: Application
    Filed: February 19, 2004
    Publication date: November 18, 2004
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY
    Inventors: Wei Chen, Tianyi Zhang, Hongbin Du, Xianzhi Xia, Tongxuan Zhang, Lixin Yan, Yisen Wang, Xinsheng Wang, Jiyu Li, Ping Gao, Maoping Yin, Luqiang Yu, Qingshan Ma, Xiaodong Wang
  • 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: 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′
  • Patent number: 6770586
    Abstract: Solid catalyst components and catalysts which contain (a) magnesium compound, (b) titanium tetrachloride, and (c) a phthalic acid diester or its derivative are useful in the synthesis of olefin polymers in high yields. Particularly, propylene polymers can be obtain in very high yields while retaining high stereoregularity.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: August 3, 2004
    Assignee: Toho Titanium Co., Ltd.
    Inventors: Kunihiko Tashino, Yukihiro Suzuki, Isa Nishiyama, Hayashi Ogawa, Takuma Yoshida, Motoki Hosaka, Maki Sato
  • Patent number: 6767857
    Abstract: A pre-catalyst is formed by reacting butylethylmagnesium with an alcohol to form a magnesium alkoxide compound, followed by contacting the magnesium alkoxide compound with a phosporous compound to form a magnesium alkoxide phosphorous compound mixture. The magnesium alkoxide phosphorous compound mixture is subsequently reacted with TiCl4 to form a MgCl2 support. The MgCl2 support is then contacted with an internal donor while being heated to form a first catalyst slurry, which is then contacted with TiCl4 while being heated to form a second catalyst slurry. The second catalyst slurry is next contacted with TiCl4 while being heated to form a third catalyst slurry, which is washed and dried, resulting in a highly active pre-catalyst with controlled morphology. The pre-catalyst may be combined with one or more co-catalysts and optionally one or more external electron donors to form an active catalyst system, which may be used for polymerization of olefins.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: July 27, 2004
    Assignee: Fina Technology, Inc.
    Inventor: Joseph Lyndon Thorman
  • Publication number: 20040138054
    Abstract: A supported catalyst composition comprising the reaction product of i) a magnesium halide, ii) a solvent, iii) an electron donor compound, iv) and a transition metal compound; an inert support; and a cocatalyst composition wherein the supported catalyst is substantially free of other alcohols and wherein the molar ratio of the first alcohol to magnesium is less than or equal to 1.9. Methods of making supported catalyst compositions and methods of making polymers with supported catalysts.
    Type: Application
    Filed: July 15, 2002
    Publication date: July 15, 2004
    Inventors: Burkhard Eric Wagner, Michael D. Awe
  • Patent number: 6762145
    Abstract: The present invention relates to a catalyst for polymerization and co-polymerization of ethylene. More particularly, the present invention relates to a solid titanium catalyst containing magnesium, wherein said catalyst is produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with alcohol; reacting said solution with an ester compound having at least one hydroxy group, or a phosphorous compound and a silicon compound having alkoxy groups; producing a solid component with an adjusted particle morphology by adding a mixture of a titanium compound and a silicon compound; reacting the same with an aluminum compound; and then reacting the same with a titanium compound, or a titanium compound and a vanadium compound. As a result, the catalyst of the present invention has high catalytic activity with excellent catalyst morphology.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: July 13, 2004
    Assignee: Samsung General Chemicals Co., Ltd.
    Inventors: Chun-Byung Yang, Weon Lee, Sang-Yull Kim
  • Publication number: 20040116278
    Abstract: The present invention provides a method for producing a new catalyst of high polymerization activity for homo- or co-polymerization of ethylene, or more particularly a method for producing a titanium solid complex catalyst supported on a carrier containing magnesium, wherein said catalyst is capable of producing polymers of high bulk density and narrow particle size distribution with few fine particles.
    Type: Application
    Filed: October 20, 2003
    Publication date: June 17, 2004
    Inventors: Chun-Byung Yang, Won-Young Kim, Weon Lee
  • Publication number: 20040077490
    Abstract: Process for the polymerization of olefins CH=CHR, in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, carried out in the presence of a catalyst component (A) comprising Mg, Ti and halogen as essential elements and of a catalyst component (B) capable to produce, under the same polymerization conditions, a polymer with an average particle size lower than that obtainable with the said catalyst component A. The said process provides polymers with increased bulk density.
    Type: Application
    Filed: September 26, 2003
    Publication date: April 22, 2004
    Inventors: Gianni Collina, Ofelia Fusco, Eduardo Chicote Carrion, Alberto Gil, Volker Dolle, Horst Klassen, Karl-Heinz Kagerbauer
  • Publication number: 20040077488
    Abstract: Olefin polymers with a broad molecular weight distribution can be obtained while maintaining the high stereoregularity of the polymers by polymerizing olefins using a catalyst comprising (A) a solid catalyst component prepared by contacting (a) a dialkoxymagnesium, (b) a tetravalent titanium halide compound, and (c) an electron donor compound one another, (B) an organoaluminum compound of the formula R1pAlQ3-p, and (C) an aminosilane compound of the formula R2R3Si(OR4)2.
    Type: Application
    Filed: September 9, 2003
    Publication date: April 22, 2004
    Inventors: Kunihiko Tashino, Maki Sato
  • Patent number: 6716939
    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 substituted succinates 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 1, 2001
    Date of Patent: April 6, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin, Peter A. A. Klusener
  • Publication number: 20040053774
    Abstract: The present invention provides a method for producing a new catalyst of high catalytic activity and superior catalyst morphology for homo- or co-polymerization of ethylene, or more particularly a method for producing a titanium solid complex catalyst supported on a carrier containing magnesium, wherein said catalyst of high polymerization activity is capable of producing polymers of high bulk density.
    Type: Application
    Filed: October 27, 2003
    Publication date: March 18, 2004
    Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
  • Publication number: 20040048738
    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: Application
    Filed: February 26, 2003
    Publication date: March 11, 2004
    Inventors: Gianni Collina, Ofelia Fusco, Diego Brita
  • Patent number: 6703456
    Abstract: A process (I) for producing an &agr;-olefin polymerization catalyst whereby (1) a titanium compound is reduced by an organomagnesium compound in the presence of an organosilicon compound to produce a reduction solid, (2) the reduction solid is aged to produce a solid product, (3) the solid product is contacted with an ether compound, titanium tetrachloride and an organic acid halide compound, to produce an organic acid halide-treated solid, (4) the organic acid halide-treated solid is contacted with a mixture of an ether compound, titanium tetrachloride and an ester compound, or with a mixture of an ether compound and titanium tetrachloride to produce a solid catalyst component containing a titanium compound, and (5) the solid catalyst component is contacted with an aluminum compound and an electron donor compound to produce a catalyst for &agr;-olefin polymerization. A process (II) for producing an &agr;-olefin polymer using a catalyst produced by process (I).
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: March 9, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Jiro Mori, Tomoaki Tanaka, Yasunori Kaminaga
  • Patent number: 6703339
    Abstract: A catalyst component for the (co)polymerization of olefins is provided. The catalyst comprises titanium, magnesium halogen and a mixed electron-donor and a catalyst for the (co)polymerization of olefins comprising:(A) the catalyst component; (B) an organic aluminum compound; and (C) an organic silicon compound. A polymer with high and adjustable stereospecificity and broad molecular weight distribution can be prepared by using the catalyst.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: March 9, 2004
    Assignees: China Petro-Chemical Corporation, Beijing Research Institute of Chemical Industry, Sinopec
    Inventors: Zhulan Li, Juxiu Yang, Mingzhi Gao, Yun Zhao, Bingquan Mao, Aichun Yang, Chunmin Ding, Wenbo Song, Kunzheng Liu
  • Publication number: 20040043892
    Abstract: Process for preparing an olefin polymerisation catalyst component comprising magnesium halide, titanium halide and a carboxylic acid ester electron donor, in which the precursors of its constituents are reacted in solution from which the component is eventually precipitated, this precipitation being accompanied by co-precipitation of one or more oligoesters of the carboxylic acid formed in a controlled manner. The component is employed, together with an organometallic co-catalyst, for polymerisation of C2-C1-0 &agr;-olefins.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 4, 2004
    Inventors: Timo Leinonen, Peter Denifl
  • Patent number: 6699814
    Abstract: The present invention relates to catalysts particularly suitable for the sterospecific polymermerization of olefins, comprising Ti, Mg, halogen and an electron donor compound selected from heteroatoms containing esters of malonic acids. Polymers produced by the catalysts have high isotactic index expressed in terms of high xylene insolubility.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: March 2, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin, Yuri V. Gulevich
  • Publication number: 20040039139
    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: August 27, 2003
    Publication date: February 26, 2004
    Applicant: Formosa Plastics Co., U.S.A.
    Inventors: Bing Lu, Honglan Lu, Chih-Jian Chen
  • Publication number: 20040033887
    Abstract: A method for making a solid catalyst component for use in a Ziegler-Natta catalyst includes combining a porous particulate support with a magnesium source in a hydrocarbon solvent to form a mixture, the magnesium source including a hydrocarbon soluble organomagnesium compound and a hydrocarbon insoluble anhydrous inorganic magnesium-halogen compound. The organomagnesium compound is halogenated and the mixture is reacted with a titanium compound or vanadium compound to form the solid catalyst component. The solid catalyst component is then recovered and combined with an organoaluminum cocatalyst to form a Ziegler-Natta catalyst which is advantageously used for the polymerization of olefins, particularly alk-1-enes such as ethylene, propylene, 1-butene, and the like. The catalyst can optionally include internal and external electron donors.
    Type: Application
    Filed: August 19, 2002
    Publication date: February 19, 2004
    Inventor: Wolf Spaether
  • Patent number: 6689850
    Abstract: The present invention relates to a process for the polymerization of olefins using catalyst components and catalysts obtained therefrom comprising Ti, Mg, halogen and an electron donor compound selected from heteroatoms containing esters of malonic acids. The catalysts are particularly suitable for the sterospecific polymermerization of olefins having high isotactic index expressed in terms of high xylene insolubility.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: February 10, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin, Yuri V. Gulevich
  • Patent number: 6683018
    Abstract: A process for the preparation of a supported catalyst system, an inorganic carrier material being reacted with a metal compound of the formula M1(R1)r(R2)5(R3)t(R4)u  I in the presence of an inert solvent in a first step and, in a subsequent step, the suspension thus obtained being reacted with a metallocene complex and a compound forming metallocenium ions, in which process the solvent is not removed after the first step and the subsequent step is carried out without isolation of the pretreated carrier material thus obtained.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: January 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Marc Oliver Kristen, Laurent Deloux, Peter Kölle, Ulrich Moll, Ursula Rief
  • Patent number: 6683139
    Abstract: There are provided (1) a process for producing a solid product, which comprises the step of reducing a titanium compound represented by the following formula [I] with an organomagnesium compound in the presence of an organosilicon compound having an Si—O bond, an inorganic fine particle and optionally an ester compound, (2) a process for producing a solid catalyst component, which comprises the step of contacting the solid product obtained by the above process, a halogenation ability-carrying halogeno compound, and an inner electron donor compound, (3) a process for producing a catalyst, which comprises the step of contacting the solid catalyst component obtained by the above process, an organoaluminum compound, and an outer electron donor compound, and (4) a process for producing an olefin polymer, which comprises the step of polymerizing an olefin in the presence of the catalyst obtained by the above process.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: January 27, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masayuki Fujita, Yoshinori Seki, Hiroyoshi Nakajima
  • Publication number: 20040014595
    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 maleates 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: Application
    Filed: April 24, 2003
    Publication date: January 22, 2004
    Inventors: Giampiero Morini, Giulio Balbontin, Yuri V. Gulevich, Gianni Vitale
  • Patent number: 6680360
    Abstract: There are provided a process for producing a catalyst for &agr;-olefin polymerization, which comprises the step of contacting (1) a solid catalyst component having Ti, Mg and a halogen as essential components, (2) an organoaluminum compound and (3) a compound having a —C—O—C—O—C— bond group in a closed ring structure with one another; and a process for producing an &agr;-olefin polymer, which comprises the step of homopolymerizing or copolymerizing an &agr;-olefin in the presence of a catalyst for &agr;-olefin polymerization produced by the above process.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: January 20, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Shin-ichi Kumamoto
  • Publication number: 20040010101
    Abstract: A spray-dried catalyst precursor composition and method of making a spray-dried catalyst precursor composition with an inert filler, magnesium, a transition metal, solvent, and one electron donor compound. The catalyst precursor composition is substantially free of other electron donor compounds, the molar ratio of the electron donor compound to magnesium is less than or equal to 1.9, and comprises spherical or substantially spherical particles having a particle size of from about 10 to about 200 &mgr;m. Catalysts made from the spray-dried catalyst precursors and polymerization methods using such catalysts are disclosed.
    Type: Application
    Filed: July 15, 2002
    Publication date: January 15, 2004
    Inventors: Burkhard Eric Wagner, Robert James Jorgensen
  • Publication number: 20040009869
    Abstract: A method for increasing the solubility of a magnesium halide includes providing an electron donating solvent, contacting a magnesium halide with the solvent; and providing an electron donor compound to form a magnesium halide composition. The composition is characterized by a solubility in the electron donor solvent that does not decrease up to the boiling point of the solvent. A polymerization catalyst precursor composition comprises the product of mixing the magnesium halide composition with a transition metal compound. Active catalysts prepared from such precursors and a methods of polymerization using such catalysts are also disclosed.
    Type: Application
    Filed: July 15, 2002
    Publication date: January 15, 2004
    Inventors: Burkhard Eric Wagner, Robert James Jorgensen, Cynthia Anne Hepburn
  • Publication number: 20030207754
    Abstract: The present invention relates to catalyst components for the polymerization of olefins, and to the catalyst obtained therefrom, particularly suitable for the stereospecific polymerization of olefins, comprising Ti, Mg, halogen and an electron donor compound selected from heteroatom containing esters of malonic acids (heteroatom containing malonates). 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: Application
    Filed: June 6, 2003
    Publication date: November 6, 2003
    Inventors: Giampiero Morini, Giulio Balbontin, Yuri V. Gulevich
  • Publication number: 20030207755
    Abstract: The present invention relates to catalyst components for the polymerization of olefins, and to the catalyst obtained therefrom, particularly suitable for the stereospecific polymerization of olefins, comprising Ti, Mg, halogen and an electron donor compound selected from heteroatom containing esters of malonic acids (heteroatom containing malonates). 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: Application
    Filed: June 6, 2003
    Publication date: November 6, 2003
    Inventors: Giampiero Morini, Giulio Balbontin, Yuri V. Gulevich
  • Publication number: 20030199388
    Abstract: The present invention relates to catalyst components for the polymerization of olefins, and to the catalyst obtained therefrom, particularly suitable for the stereospecific polymerization of olefins, comprising Ti, Mg, halogen and an electron donor compound selected from heteroatom containing esters of malonic acids (hereroatom containing malonates). 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: Application
    Filed: June 6, 2003
    Publication date: October 23, 2003
    Inventors: Giampiero Morini, Giulio Balbontin, Yuri V. Gulevich
  • Patent number: 6605562
    Abstract: The present invention relates to catalyst components for the polymerization of olefins, and to the catalyst obtained therefrom, particularly suitable for the stereospecific polymerization of olefins, comprising Ti, Mg, halogen and an electron donor compound selected from heteroatom containing esters of malonic acids (heteroatom containing malonates). 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: June 28, 2000
    Date of Patent: August 12, 2003
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin, Yuri V. Gulevich
  • Publication number: 20030130110
    Abstract: There are provided:
    Type: Application
    Filed: January 21, 2003
    Publication date: July 10, 2003
    Inventors: Tatsuya Miyatake, Masaaki Nabika, Seiki Kiuchi
  • Publication number: 20030130109
    Abstract: Solid catalyst components and catalysts which comprise (a) a magnesium compound, (b) titanium tetra chloride, and (c) a phthalic acid diester or its derivative represented by a particular formula, can afford polymers of olefins in very high yield. Particularly, propylene polymers can be obtained in very high yield while retaining high stereoregularity. Moreover, they have high responsiveness to hydrogen.
    Type: Application
    Filed: April 3, 2002
    Publication date: July 10, 2003
    Inventors: Kunihiko Tashino, Yukihiro Suzuki, Isa Nishiyama, Hayashi Ogawa, Takuma Yoshida, Motoki Hosaka, Maki Sato
  • Patent number: 6586543
    Abstract: The present invention provides a process for preparing a substantially amorphous poly-&agr;-olefin, which includes: a) preforming a solid catalyst and, optionally, a first amount of a trialkylaluminum cocatalyst, by contacting the catalyst and optionally the cocatalyst with at least one selected from the group including oxygen and a compound which includes active oxygen, to form a preformed catalyst, wherein the solid catalyst includes magnesium, aluminum and titanium, and wherein said trialkylaluminum cocatalyst includes 1 to 9 carbon atoms in each alkyl group; b) contacting the preformed catalyst with a second amount of the cocatalyst, wherein a molar ratio of trialkylaluminum to the titanium ranges from 40:1 to 700:1, to form a catalyst mixture; c) polymerizing, in the liquid phase, with the catalyst mixture, an olefin or an olefin mixture at a temperature between 30 and 160° C., to produce the poly-&agr;-olefin.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: July 1, 2003
    Assignee: Degussa AG
    Inventors: Hans Guenther Wey, Norbert Schlueter
  • Patent number: 6583083
    Abstract: This invention relates to an olefin polymerization catalyst composition comprising the product of the combination of an activator, an additive and a transition metal compound which is represented by the formula: ((Z)XAt(YJ))qMQn where M is a metal selected from the group consisting of Groups 3 to 13, lanthanide and actinide metals of the Periodic Table of Elements; Q is bonded to M and each Q is a monovalent, divalent or trivalent anion; X and Y are bonded to M; X and Y are independently selected from the group consisting of nitrogen, oxygen, sulfur and phosphorous; Y is contained in a heterocyclic ring J, where J comprises from 2 to 50 non-hydrogen atoms, Z is bonded to X, where Z comprises 1 to 50 non-hydrogen atoms; t is 0 to 1; when t is 1, A is abridging group joined to at least one of X, Y or J, q is 1 or2; n is the oxidation state of M minus q minus 1 if Q is a monovalent anion, n is (the oxidation state of M−q)/2 if Q is a bivalent anion, or n is (the oxidation state of M−q)/3 if Q is a
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: June 24, 2003
    Assignee: Univation Technologies, LLC
    Inventors: Rex E. Murray, Simon Mawson