Silicon Present In Organic Non-metal Compound Patents (Class 526/128)
  • 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: 6399726
    Abstract: The present invention concerns a method for the copolymerization of conjugated diolefins and vinyl-aromatic monomers in the presence of rare-earth catalysts and the use of the copolymers in rubber mixtures for tire applications.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: June 4, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heike Windisch, Jürgen Trimbach, Peter Schertl, Ellen Giebeler, Rüdiger Engehausen
  • 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: 6395666
    Abstract: This invention provides catalyst composition for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises as organometal compound, as organoaluminum compound, and a fluorided solid oxide compound.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: May 28, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Kathy S. Collins, James L. Smith, Elizabeth A. Benham, Marvin M. Johnson, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
  • Patent number: 6395846
    Abstract: The invention relates to high-activity catalysts for olefin polymerization, to efficient methods for producing them, and to efficient methods of using the catalysts for producing high-quality polyolefins. The olefin polymerization with the catalysts does not require a large amount of an organic aluminium compound, and the residual metal in the polyolefins produced is much reduced. The catalysts are characterized by containing a product as prepared by contacting any of clay, a clay mineral and an ion-exchanging layered compound, an organic silane compound, and water with each other, or by containing a silane compound-processed clay.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: May 28, 2002
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Haruhito Sato, Masahiko Kuramoto
  • Patent number: 6388029
    Abstract: Catalytic systems particularly suitable for the polymerization of &agr;-olefins containing from two to 20 carbon atoms, as well as for the copolymerization of ethylene with &agr;-olefins containing from three to 20 carbon atoms, dienes, and cycloalkenes in processes wherein the catalyst is suspended in a solvent, in processes in gas phase, as well as in mass polymerization processes at high temperatures and pressures, are disclosed. The catalytic system is a mixture of a catalyst component A and a co-catalyst component B. The catalyst component A is formed by a functionalized inorganic porous oxide, by an organoaluminium compound and by an organometallic compound of a metal of the groups 3, 4, 5, or 6 of the periodic table. Functionalization of the inorganic oxide is by introduction of functional groups to be used to strongly fix the organoaluminium compound and the organometallic compound.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: May 14, 2002
    Assignee: Repsol Quimica S.A.
    Inventors: Gerardo Hidalgo Llinas, Bego{overscore (n)}a Pe{overscore (n)}a Garcia, Antonio Mu{overscore (n)}oz-Escalona, Jose Sancho Royo
  • Patent number: 6388040
    Abstract: A propylene/ethylene/&agr;-olefin terpolymer characterized in that i) there is from 0.01 mol % to less than 15 mol % of a comonomer unit with a molar ratio of ethylene units/C4-C20 &agr;-olefin units being in the range of from 6.5×10−4 to 0.99, and from more than 85 mol % to not more than 99.99 mol % of a propylene unit with 2,1- and 1,3-propylene units being in the range of from 0 to 1 mol %, in a polymer chain determined by 13C-NMR spectroscopy; ii) a weight average molecular weight (Mw) determined by GPC is in the range of from 40,000 to 1,000,000; and iii) the amount of the component eluted in o-dichlorobenzene at a temperature of not higher than 40° C. is not more than 10 % by weight based on the total weight of the terpolymer and the amount of the component eluted in o-dichlorobenzene within the ±10° C. range of an elution peak temperature is not less than 75 % by weight based on the weight of the component eluted at a temperature of higher than 0° C.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: May 14, 2002
    Assignee: Chisso Corporation
    Inventors: Hiroyuki Fujita, Jun Saito, Yoshitoyo Yasuda, Yoshiyuki Ohgi, Yasuhiro Shiraishi, Shinji Nakata, Tsutomu Ushioda, Mototake Tsutsui
  • Patent number: 6384160
    Abstract: A method of polymerizing olefins with a catalyst component which comprises 1) the reaction product of a magnesium alkoxide of the formula M(OR)2, wherein M is magnesium, O is oxygen, R is a hydrocarbyl having from 1 to 20 carbons atoms, and a halogenating agent; 2) an electron donor wherein the electron donor is diethyl phthalate or di-isobutyl phthalate; 3) a titanating agent. The catalyst component is activated with an organoaluminum cocatalyst. An external donor, specifically dicyclopentyl dimethoxysilane or cyclohexylmethyldimethoxy silane, can be added as a stereoselectivity control agent. The activated catalyst is used in the polymerization of olefins, particularly propylene, to obtain a polymer product with a broad molecular weight distribution.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: May 7, 2002
    Assignee: Fina Technology, Inc.
    Inventors: Edwar Shoukri Shamshoum, Christopher Garland Bauch, David John Rauscher
  • Patent number: 6380332
    Abstract: Aluminoxanes having C2-C10 alkyl groups can conveniently be used in supported olefin polymerization catalyst compositions prepared by contacting a support comprising a solid compound which is one of pure aluminium oxide, a mixed aluminium oxide, an aluminium salt, a magnesium halide, or a C1-C8 alkoxy magnesium halide, in any order with at least a) an organometallic compound, b) a metallocene, and c) an aluminoxane, and recovering said supported olefin polymerization catalyst composition.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: April 30, 2002
    Assignee: Borealis Technology Oy
    Inventors: Kalle Kallio, Hilkka Knuuttila, Kaisa Suominen
  • Patent number: 6376628
    Abstract: A method for preparing an &agr;-olefin polymer comprising the step of polymerizing or copolymerizing an &agr;-olefin in the presence of a catalyst containing a solid catalyst constituent (A) which contains magnesium, titanium, a halogen element and an electron donor, an organoaluminum compound constituent (B), an organosilicon compound constituent (C) represented by the following general formula (1); and an organosilicon compound constituent (D) represented by the following general formulas (2) or (3) to prepare an &agr;-olefin polymer RnSi(OR)4−n  (1) wherein R is a hydrocarbon group having 1 to 8 carbon atoms, n is integer of 1 or 2; wherein R1 is a hydrocarbon group having 1 to 8 carbon atoms, R2 is a hydrocarbon group having 1 to 8 carbon atoms, a hydrocarbylamino group having 2 to 24 carbon atoms, or a hydrocarbylalkoxy group having 1 to 24 carbon atoms, R3N is a polycyclic amino group having 7 to 40 carbon atoms, wherein the carbon atoms and the nitrogen atom form a c
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: April 23, 2002
    Assignee: Grand Polymer Co., Ltd.
    Inventors: Shigeru Ikai, Hiroyuki Ikeuchi, Yasuhisa Sakakibara, Hiroshi Satoh
  • Publication number: 20020045537
    Abstract: The present invention provides a method for producing a catalyst for the production of 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 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: Application
    Filed: March 6, 2001
    Publication date: April 18, 2002
    Inventors: Chun-Byoung Yang, Ho-Sik Chang, Weon Lee
  • Patent number: 6372869
    Abstract: The molecular weight of polyolefins produced using selected late transition metal complexes of bidentate ligands may be lowered by carrying out the polymerization in the presence of hydrogen, a selected silane, or CBr4.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: April 16, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Samuel David Arthur, Stephan James McLain
  • Patent number: 6368995
    Abstract: A solid catalyst for olefin polymerization, obtained by reacting a least one of a hydropolysiloxane compound, having the formula R1aHbSiO(4−a−b)/2, a silane compound of formula R2cSi(OH)4−c, and condensates of the silane, with a compound of formula (MgR32)p.(R3MgX)q to form a reaction product. The reaction product is reacted with an alcohol, having 1 to 4 carbon atoms, to obtain an intermediate product. The intermediate product, is then reacted with water to obtain reaction product. An organoaluminum oxy compound and a metallocene compound are carried on the solid reaction product. The solid catalyst may be used for olefin polymerization. The catalyst requires no deashing treatment and produces a polymer having high bulk density and narrow particle size distribution. Thus the solid catalystenables control of particle size of the polymer in a simple easy manner, and shows no adhesion of polymer onto the inner wall of autoclave.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: April 9, 2002
    Assignee: Maruzen Petrochemical Co., Ltd.
    Inventors: Sakae Kamiyama, Toshifumi Takemori, Minoru Iijima, Yukiko Hane, Shigeharu Yamamoto
  • 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
  • Patent number: 6362124
    Abstract: There are provided (i) a catalyst component (C), (ii) an olefin polymerization catalyst, and (iii) a process for producing an olefin polymer. The catalyst being obtained by contacting a solid catalyst component (A), an organoaluminum compound (B) and the catalyst component (C) of an organosilicon compound represented by the following formula (1), wherein n is 1 or 2, R1 to and R6 are independently of one another a hydrogen or halogen atom or a hydrocarbon group, or may be bonded with one another to form a ring, R7 is a hydrocarbon group, and when n is 2, two R1s, R2s, R3s, R4s, R5s and R6s may be the same or different.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: March 26, 2002
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Hiroshi Kuribayashi, Makoto Satoh
  • Patent number: 6362293
    Abstract: A process for preparing syndiotactic vinylidene aromatic polymers comprising contacting one or more vinylidene aromatic monomers with a concentrated catalyst premix composition comprising a Group 4 metal complex and an activating cocatalyst.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: March 26, 2002
    Assignee: The Dow Chemical Company
    Inventors: Thomas H. Newman, Karen K. Borodychuk
  • Patent number: 6355745
    Abstract: A process for preparing syndiotactic monovinylidene aromatic polymers comprising contacting one or more monovinylidene aromatic monomers with a catalyst composition comprising a Group 4 metal complex and an activating cocatalyst composition comprising an aluminoxane and an electrophilic borane compound.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: March 12, 2002
    Assignee: The Dow Chemical Company
    Inventors: Thomas H. Newman, Karen K. Borodychuk
  • Patent number: 6355594
    Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided silica-alumina.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: March 12, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Kathy S. Collins, Anthony P. Eaton, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
  • Publication number: 20020028893
    Abstract: One aspect of the present invention relates to a catalyst system for use in olefinic polymerization, containing a solid titanium catalyst component; an organoaluminum compound having at least one aluminum-carbon bond; and an organosilicon compound comprising a (cycloalkyl)methyl group. Another aspect of the present invention relates to a method of making a catalyst for use in olefinic polymerization, involving the steps of reacting a Grignard reagent having a (cycloalkyl)methyl group with an orthosilicate to provide an organosilicon compound having a (cycloalkyl)methyl moiety; and combining the organosilicon compound with an organoaluminum compound having at least one aluminum-carbon bond and a solid titanium catalyst component to form the catalyst.
    Type: Application
    Filed: August 15, 2001
    Publication date: March 7, 2002
    Inventors: Chung-Ping Cheng, Michael D. Spencer
  • Publication number: 20020028892
    Abstract: A prepolymerization catalyst for use in a gas phase polymerization of an olefin or combinations of olefins which comprises (A) a solid catalyst component comprising magnesium, halogen, titanium and an electron donor and having a weight-average particle diameter of 15 to 45 &mgr;m, (B) at least one organoaluminum compound and (C) a prepolymer of an ethylene and/or at least one &agr;-olefin, wherein the molar ratio of aluminum to titanium in the prepolymerization catalyst (Al/Ti ratio) is 3 to 11 (mol/mol), the weight ratio of the prepolymerization catalyst to the solid catalyst component (prepolymerization catalyst/solid catalyst component) is 2 to 35 (g/g), the content of volatile materials (VM) in the prepolymerization catalyst is 2.0% by weight or less, and the intrinsic viscosity [&eegr;] measured in tetralin at 135° C. is 2.0 dl/g or less, and a process for a production thereof.
    Type: Application
    Filed: March 30, 2001
    Publication date: March 7, 2002
    Inventors: Tomoaki Goto, Kazuki Wakamatsu, Shinichi Kumamoto
  • Patent number: 6350830
    Abstract: A catalyst system in which the ratio of rac isomer to meso isomer of the metallocene is from 1:10 to 2:1 can be used for the polymerization of olefins.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: February 26, 2002
    Assignee: Tagor GmbH
    Inventors: Markus Göres, Carsten Bingel, Cornelia Fritze
  • Patent number: 6350828
    Abstract: A polypropylene resin composition exibiting a high melt tension and superior moldability, which can be molded efficiently by a high-speed molding into scarcely deformable larger molded articles of better appearance with high stiffness and which comprises polypropylene as a main component and has the following characteristic features 1) to 4), namely, 1) that a melt flow rate (MFR, determined at 230° C. under a load of 2.16 kg) is in the range of 0.01 to 5 g/10 min., 2) that a content of a high molecular weight polypropylene exhibiting an intrinsic viscosity [&eegr;], determined at 135° C. in decalin, of 8-13 dl/g is in the range of 15 to 50% by weight, 3) that a gel areal density in number is 3,000/450 cm2 or less and 4) that a molecular weight distribution determined by gel permeation chromatography (GPC) is 6-20, as expressed by Mw/Mn, and is 3.5 or higher, as expressed by Mz/Mw.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: February 26, 2002
    Assignee: Grand Polymer Co Ltd
    Inventors: Tohru Takaoka, Ikunori Sakai, Hideki Nakagawa, Mikio Hashimoto, Satoshi Matsuura, Takashi Shimizu
  • Patent number: 6348546
    Abstract: The present invention has its object to provide an isobutylene group block copolymer containing a highly reactive alkenyl group with a high rate of introduction of an alkenyl, and process for producing the same. An alkenyl-group-containing isobutylene group block copolymer comprising a polymer block derived from (a) a monomer component containing isobutylene group as a predominant monomer and (b) a monomer component not containing isobutylene group as a predominant monomer, in which said block copolymer has an alkenyl group of the following general formula (1).
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: February 19, 2002
    Assignee: Kaneka Corporation
    Inventors: Tomoki Hiiro, Shinji Ozawa, Taizo Aoyama
  • Patent number: 6346584
    Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: February 12, 2002
    Assignee: Univation Technologies, LLC
    Inventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson
  • 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: 20020013434
    Abstract: A process for preparing polyolefins by polymerizing or coploymerizing an olefin or olefins in the presence of a catalyst comprising a solid catalyst component and an organometallic compound is provided.
    Type: Application
    Filed: April 27, 2001
    Publication date: January 31, 2002
    Inventors: Akira Sano, Takeichi Shiraishi, Kunihiro Suzuki, Hiroyuki Shimizu, Kazuo Matsuura
  • Publication number: 20020007024
    Abstract: A novel process for producing homopolymers and copolymers of ethylene which involves contacting ethylene and/or ethylene and at least one or more other olefin(s) under polymerization conditions with a Ziegler-Natta type catalyst. at least one halogenated hydrocarbon, at least one compound of the formula XnER3-n as a co-catalyst and at least one compound containing at least one carbon-oxyen-carbon linkage (C—O—C) of the formula R1—O(—R2—O)n—R3 as an external electron donor. Also provided are films and articles produced therefrom.
    Type: Application
    Filed: July 24, 2001
    Publication date: January 17, 2002
    Inventors: Randal Ray Ford, William Albert Ames, Kenneth Alan Dooley, Jeffrey James Vanderbilt, Alan George Wonders
  • Patent number: 6339134
    Abstract: The present invention relates to a process for polymerizing olefin(s) utilizing a cyclic bridged metallocene-type catalyst system to produce enhanced processability polymers.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: January 15, 2002
    Assignee: Univation Technologies, LLC
    Inventors: Donna J. Crowther, Ching-Tai Lue
  • 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: 6337376
    Abstract: A method to prepare a polyolefin in the presence of a catalyst comprising: (A) a solid catalyst component prepared by reacting a homogenous solution consisting of (i) at least one member selected from the group consisting of metal magnesium and a hydroxylated organic compound, and oxygen-containing organic compounds of magnesium, (ii) at least one oxygen-containing organic compound of titanium and (iii) at least one silicon compound, first with (iv) at least one first organoaluminum halide compound of the formula: AlR5zX3−z  wherein R5 is a hydrocarbon group having from 1 to 20 carbon atoms, X is a halogen atom, and 1≦z≦2, and wherein the atomic ratio of gram atoms of Al in the component (iv) to gram atoms of Mg in the component (i) (Al/Mg) is from 0.1 to 2.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: January 8, 2002
    Assignee: Tosoh Corporation
    Inventors: Yutaka Naito, Fumiharu Takahashi, Mitsuhiro Mori, Yozo Kondo
  • Publication number: 20010053831
    Abstract: A polypropylene composition comprising 0.001 to 10 parts by weight of a polyethylene having an intrinsic viscosity [&eegr;E] of 0.01 to less than 15 dl/g s measured in tetralin at 135° C. and 100 parts by weight of a polyolefin comprising at least polypropylene, wherein the polyethylene is finely dispersed as particles with a number average particle diameter of, e.g., 1 to 5000 nm in the polyolefin comprising at least polypropylene. By virtue of the above constitution, the polypropylene composition has excellent transparency and rigidity, is free from the creation of a sweeper roll flow mark in the preparation of a film and substantially free from a neck-in phenomenon of a film, and has high productivity.
    Type: Application
    Filed: January 11, 1999
    Publication date: December 20, 2001
    Inventors: KATSUHIKO OHNO, MASAMI KIMURA, TAKETO HIROSE, YOSHITAKA MORIMOTO, JUN SAITO
  • 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
  • Publication number: 20010051697
    Abstract: Catalysts that have been preactivated and/or prepolymerized are disclosed whereby a magnesium and titanium-containing procatalyst component is contacted with a co-catalyst and an external electron donor (and optionally with an olefin monomer to prepare a prepolymerized catalyst) prior to polymerization to form a preactivated and/or prepolymerized catalyst. The preactivated and/or prepolymerized catalyst then is separated from the mixture, and dried to form a solid preactivated and/or prepolymerized catalyst. This dried catalyst then can be stored and subsequently shipped to a polymerization site where it can be used in gas phase polymerization. The preactivated and/or prepolymerized catalyst can be used in gas phase polymerization as extremely high activity catalysts, and do not cause a rapid rise in reaction temperature causing overheating, undesirable formation of agglomerates, coagulation of polymer, and ultimately, reactor failure.
    Type: Application
    Filed: June 29, 2001
    Publication date: December 13, 2001
    Inventor: David Bell Morse
  • Publication number: 20010044375
    Abstract: Olefin polymerization catalysts are formed from:
    Type: Application
    Filed: June 12, 2001
    Publication date: November 22, 2001
    Inventors: Tetsunori Shinozaki, Mamoru Kioka
  • Patent number: 6320004
    Abstract: A catalyst composition that is the combination of or the reaction product of ingredients comprising a iron-containing compound, an organomagnesium compound, and a silyl phosphonate.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: November 20, 2001
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 6316561
    Abstract: In olefin polymer production, for which is used a metallocene-type catalyst having a double-crosslinked indenyl or substituted indenyl group, a small amount of hydrogen is added to the polymerization system. Concretely, hydrogen is added thereto so that the hydrogen concentration in the olefin being polymerized could be from 0.01 to 10 mol % or hydrogen could be in the polymerization system in an amount of from 10 to 20000 mols relative to one mol of the transition metal in the metallocene-type catalyst. Hydrogen added to the olefin polymer production system enhances the polymerization activity of the catalyst used, and the catalyst could exhibit high activity in the presence of hydrogen.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: November 13, 2001
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventor: Mitsugu Kanzawa
  • Patent number: 6316557
    Abstract: Provided area catalyst for polymerizing olefinic monomers, which comprises (a) a transition metal compound, (b) at least one member selected from clay, clay minerals and ion-exchanging layered compounds, (c) a silane compound, and optionally (d) an alkylating agent; a catalyst for polymerizing olefinic monomers, which comprises (a) a transition metal compound, (b) at least one member selected from clay, clay minerals and ion-exchanging layered compounds, (c) a silane compound, and optionally (e) an organic aluminum compound, and further optionally (d) an alkylating agent; and a method for producing olefinic polymers or styrenic polymers, which comprises homopolymerizing or copolymerizing olefinic or styrenic monomers in the presence of the catalyst for polymerizing olefinic monomers. The method does not require a large amount of aluminoxane, and the catalyst to be used therein has high polymerization activity.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: November 13, 2001
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Haruhito Sato, Toshiya Abiko, Satoshi Ikeuchi, Junichi Matsumoto, Harumi Nakashima
  • Patent number: 6303698
    Abstract: Disclosed is propylene copolymers produced by the aid of a specific metallocene catalyst system, wherein a percentage of mis-insertion in the copolymer is highly controlled and the copolymers possess beat-resisting property and a high melt strength and a low MFR and are narrow in molecular weight distribution excellent in particulate properties as well as a process for producing the copolymers possessing high steroregularity at a practical polymerzation temperature. The gist of the present invention resides in production of propylene copolymers wherein copolymerization with &agr;,&ohgr;-diene is carried out by the aid of a supported-type catalyst system comprised predominantly of the following compound (A), (B), (C) and (D) at a temperature above 45° C.: the compound (A): a specific metallocene compound represented by Q(C5H4−mR1m)(C5H4−nR2n) MXY, the compound (B): an aluminoxane, the compound (C): an organoaluminum compound, and the compound (D): a particulate carrier.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: October 16, 2001
    Assignee: Chisso Corporation
    Inventors: Tsutomu Ushioda, Jun Saito, Mototake Tsutsui, Yoshitoyo Yasuda, Hiroyuki Fujita, Yoshiyuki Ohgi
  • Patent number: 6303715
    Abstract: The present invention relates to a method of polymerization or co-polymerization of olefin under the catalyst system which comprises (a) a solid complex titanium catalyst comprising of a magnesium compound, a titanium compound, and an internal electron donor; (b) an organometallic compound of metal of Group I or Group III on the Periodic Table; and (c) two of external electron donors comprising an external electron donor (1) and an external electron donor (2), wherein the ratio of the MFR (1) to the MFR (2) is 2˜10, the MFR (1) being that of the homopolymer (1) obtained by using said external electron donor (1) with said solid complex titanium catalyst (a) and the organometallic compound (b), and the MFR (2) being that of the homopolymer (2) obtained by using said external electron donor (2) under the identical polymerization reaction conditions of said external electron donor (1), and wherein the NMR pentads of the homopolymer (1) and the homopolymer (2), respectively, are 95.5% or more.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: October 16, 2001
    Assignee: Samsung General Chemicals Co., Ltd.
    Inventors: Il-Seop Kim, Ki-Su Ro
  • Patent number: 6300433
    Abstract: The invention is directed to olefin polymerization processes using bridged hafnocene catalyst complexes that are surprisingly stable under high temperature olefin polymerization processes such that olefin copolymers can be prepared with high molecular weights and catalyst activities. More specifically, the invention is a polymerization process for ethylene copolymers having a melt index of about 0.850 to about 0.930 comprising contacting, under homogeneous polymerization conditions at a reaction temperature at or above 60° C. to 250° C.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: October 9, 2001
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: George Rodriguez, Donna J. Crowther
  • Patent number: 6294624
    Abstract: A modified diene elastomer prepared by a process comprising the steps of polymerizing a diolefin compound containing a conjugated double bond in a liquid phase in the presence of a cobalt compound, an organic aluminum compound containing a halogen atom, and water, to give a solution containing a diene elastomer, and reacting the diene elastomer with an elastomer-modifying compound is favorably employed for the manufacture of tire tread, particularly when it is employed in combination with silica as a filler.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: September 25, 2001
    Assignees: Ube Industries, Ltd., Sumitomo Rubber Industries, Ltd.
    Inventors: Tokuji Inoue, Tetsuji Nakajima, Kiyoshige Muraoka, Noriko Yagi
  • Patent number: 6284857
    Abstract: Disclosed are a propylene polymer having a high crystallinity of a boiled heptane-insoluble component contained therein, a high stereoregularity and an extremely long mesochain (continuous propylene units wherein directions of &agr;-methyl carbons are the same as each other), and a process for preparing said polymer. Further disclosed is a propylene polymer composition comprising the above propylene polymer and at least one stabilizer selected from a phenol type stabilizer, an organophosphite type stabilizer, a thioether type stabilizer, a hindered amine type stabilizer and a metallic salt of higher aliphatic acid. The propylene polymer of the invention is excellent in rigidity, heat resistance and moisture resistance, and can be favorably used for sheet, film, filament, injection molded product, blow molded product, etc.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: September 4, 2001
    Assignee: Mitsui Chemical, Inc.
    Inventors: Tetsunori Shinozaki, Kazumitsu Kawakita, Mamoru Kioka
  • Publication number: 20010016633
    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:
    Type: Application
    Filed: February 2, 2001
    Publication date: August 23, 2001
    Inventors: Yasuki Fujiwara, Makoto Satoh
  • Patent number: 6271323
    Abstract: The present invention relates to mixed catalyst compositions of a Group 15 containing hafnium catalyst compound and a bulky ligand metallocene-type catalyst compound, a unsupported and supported catalyst systems thereof and to a process for polymerizing olefin(s) utilizing them.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: August 7, 2001
    Assignee: Univation Technologies, LLC
    Inventors: Donald R. Loveday, David H. McConville
  • Patent number: 6271167
    Abstract: Disclosed are a catalyst for polymerizing olefins containing a solid catalyst component containing titanium, magnesium and halogen as essential components (component (A)); an organic aluminum compound (component (B)); and a silane compound (component (C)) represented by general formula (1) wherein R1 and R2 independently represent a straight, branched or cyclic saturated aliphatic hydrocarbon group or a silyl group, a method of preparing polyolefins using the catalyst as well as novel trimethoxysilane compounds represented by the general formula (1) in which R1 is a straight saturated aliphatic hydrocarbon group having 2 to 10 carbon atoms, and R2 represents a methyl group. Use of the catalyst enables efficient production of polyolefins having a low molecular weight (MFR>20 (g/10 minutes)), a broad molecular weight distribution (MLMFR/MFR>22) and a high stereoregularity when applied to polymerization of olefins having 3 or more carbon atoms.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: August 7, 2001
    Assignee: Japan Polyolefins Co., Ltd.
    Inventors: Masaki Fushimi, Toshio Fujita, Shintaro Inazawa
  • Patent number: 6271321
    Abstract: A novel process for producing homopolymers and copolymers of ethylene which involves contacting ethylene and/or ethylene and at least one or more other olefin(s) under polymerization conditions with a Ziegler-Natta type catalyst containing at least one or more internal electron donors, trimethylaluminum and at least one or more external electron donors containing at least one carbon-oxygen-carbon linkage (C—O—C) selected from the group consisting of Formula 1, R1—CH2—O—CH2—R2, Formula 2, Formula 3, R5—O—R6, and Formula 4, R7—O(—R8—O)n—R9. Also provided are films and articles produced therefrom.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: August 7, 2001
    Assignee: Eastman Chemical Company
    Inventors: Randal Ray Ford, William Albert Ames, Kenneth Alan Dooley, Jeffrey James Vanderbilt, Alan George Wonders
  • Patent number: 6265505
    Abstract: The present invention relates to a catalyst system of a Group 15 containing metal catalyst compound and a Lewis acid aluminum containing activator and to a supported catalyst system thereof and to a process for polymerizing olefin(s) utilizing them.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: July 24, 2001
    Assignee: Univation Technologies, LLC
    Inventors: David H. McConville, Matthew W. Holtcamp
  • Publication number: 20010007008
    Abstract: The present invention provides a catalyst system that exhibits unexpected control of desired properties in copolymer product.
    Type: Application
    Filed: February 27, 2001
    Publication date: July 5, 2001
    Inventors: Edwar S. Shamshoum, David J. Rauscher, Theodore G. Harris
  • Patent number: 6252020
    Abstract: Disclosed is a method for forming a polymer nanocomposite, which comprises (a) modifying a clay material comprising layered silicate particles by ion exchange with a surfactant to form an organoclay; (b) dispersing the organoclay in a vinyl monomer and bulk polymerizing said monomer in the presence of a catalyst; and (c) adding a liquid suspension to the above mixture to effect suspension polymerization when the conversion rate of the polymerization is about 10% to 50%, thereby forming a composite having the particles uniformly dispersed in a vinyl polymer matrix.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: June 26, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Wen-Faa Kuo, Mao-Song Lee, Chien-Shiun Liao
  • Patent number: 6239062
    Abstract: A constrained geometry single-site olefin polymerization catalyst is described. The catalyst comprises an activator and an organometallic compound that includes a Group 3 to 10 transition or lanthanide metal, M, and a multidentate ligand characterized by an indolyl group that is covalently linked to an amido group, wherein the indolyl group is &pgr;-bonded to M and the amido group is &sgr;-bonded to M. The indolyl-amido ligand is formed from readily available organic compounds and allows easy synthesis of a constrained geometry catalyst system.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: May 29, 2001
    Assignee: Equistar Chemicals, L.P.
    Inventor: Leonard V. Cribbs